CN104181430B - Off-board charger detection device and method - Google Patents
Off-board charger detection device and method Download PDFInfo
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Abstract
The invention discloses an off-board charger detection device and method. The off-board charger detection device comprises a direct current side data collecting module, a load module, a battery management system simulation module, a charger state information collecting module and a data processing and control module. The direct current side data collecting module is used for collecting the direct current side voltage and current of an off-board charger in real time. The load module is provided with a direct current charging interface, connected to the off-board charger via a charging connection wire and used for simulating a charging battery. The battery management system simulation module is connected to the load module and used for sending a communication instruction to the off-board charger. The charger state information collecting module is used for collecting the voltage, current and charging state information detected by the off-board charger. The data processing and control module is used for controlling the battery management system simulation module to send the communication instruction to the off-board charger, processing the data collected by the direct current side data collecting module and the charger state information collecting module to generate first processing data, and detecting the off-board charger according to preset parameters, the collected data and the first processing data. The off-board charger detection device and method can achieve the function of automatically detecting the site of the off-board charger.
Description
Technical field
The present invention relates to charging electric vehicle field, particularly relate to a kind of off-board charger detection apparatus and method.
Background technology
At present, owing to electric automobile has the advantage of energy-conserving and environment-protective, China using Development of EV as solve city
City's atmospheric pollution and the effective means of energy problem.The electric energy arbitrary way of electric automobile has car load charging and battery altering two
Kind, car load charging be electric automobile in charging station by charger (or charging pile) with direct current (or exchange) by the way of carry out electricity
Can supply；Battery altering is that electric automobile uses special replacement device the set of cells used up to be changed in battery altering station, and
The battery that another group fills with electricity is changed, and utilizes transshipment acitivity the set of cells (generally 4-10 case battery) used up to be transported
On battery charging rack, carry out branch mailbox charging with separate-box type charger.
For supporting the development of electric automobile, Large scale construction charging station and battery altering station, is equipped with substantial amounts of
Car load charger and the off-board charger of separate-box type, it is vehicle power by rectification that its principle is mainly grid side alternating voltage
Battery (or car load set of cells) provides the power needed for the DC voltage needed for charging, and transmission.
The safe and stable operation of electrically-charging equipment is current each electric company very concern, accordingly, it would be desirable to charging
Machine detects.But, detection device or the method for existing off-board charger are all not directed to charger and battery management
The detection of system (Battery Management System, referred to as BMS) communication function.Before some charger is charged,
The charging connection needing to receive BMS confirms that rear is chargeable, therefore, detection device of the prior art for this charger without
Method carries out Site Detection.
Summary of the invention
The invention provides a kind of off-board charger detection apparatus and method, at least to solve detection of the prior art
The problem that some charger cannot be detected by device.
According to an aspect of the invention, it is provided a kind of off-board charging machine detecting device, including: DC side data acquisition
Collection module, be connected to the outfan of off-board charger, for charger off-board described in Real-time Collection DC voltage and
Electric current；Load blocks, has direct-current charging interface, is connected to described off-board charger by charging connection wire, is used for simulating
Rechargeable battery；Battery management system analog module, is connected to described load blocks, logical for sending to described off-board charger
Letter instruction；Charger status information capture module, is connected to described off-board charger, is used for gathering described off-board charger
Self detects voltage, electric current and the charging status information obtained；Data process and control module, are connected to described DC side data
Acquisition module, described battery management system analog module and described charger status information capture module, be used for controlling described electricity
Management System Simulation module in pond sends described communication instruction to described off-board charger, and to described DC side data acquisition
The data of module and described charger status information capture module collection process, and generate the first process data, and according in advance
Setting parameter, the data of described collection and described first process off-board charger described in Data Detection；Wherein said first processes
Data include: power, electric energy, the precision of voltage regulation, precision of steady current and ripple factor.
In one embodiment, described data process and control module, specifically for by described DC side data acquisition module
The data of block collection and the first process data of correspondence thereof compare with the DC side canonical parameter preset, described non-to detect
The DC side electric parameter of Vehicular charger；By the data of DC side data collecting module collected described under preset charged mode and
The parameter preset that first process data of its correspondence are corresponding with this charging modes compares, to detect described off-board charger
Charging control function；The data of described DC side data collecting module collected and the first of correspondence thereof are processed data with described
First process data of the data of charger status information capture module collection and correspondence thereof compare, to detect described off-board fill
Whether the detection device of motor internal exists fault；By the data and the of correspondence of described DC side data collecting module collected
The data that one process data show with described off-board charger compare, to detect the display function of described off-board charger.
In one embodiment, described device also includes: AC data acquisition module, is connected to described off-board charging
The input of machine, for the AC voltage and current of charger off-board described in Real-time Collection；Wherein, described data process with
Control module, is additionally coupled to described AC data acquisition module, specifically for described AC data collecting module collected
Data process, generate the second process data, by the data of described AC data collecting module collected, at described second
Reason data compare with the AC canonical parameter preset, to detect the AC electric parameter of described off-board charger,
And described second process data are compared with described first process data, obtain the output effect of described off-board charger
Rate, to detect the tractor parameter of described off-board charger, wherein said second process data includes: power, electric energy, power because of
Number and harmonic value.
In one embodiment, described load blocks includes: ohmic load and fan, and wherein, described fan is connected to institute
State ohmic load, for dispelling the heat to described ohmic load.
In one embodiment, described load blocks also includes: temperature collecting cell, is connected to described ohmic load, uses
In the temperature gathering described ohmic load；Wherein, described data process and control module, are additionally operable to according to described ohmic load
Temperature controls unlatching and the rotating speed of described fan.
In one embodiment, described device also includes: display module, is connected to described data and processes and control module,
For showing described parameter preset, the data of described collection, described first process data, the second process data and detection knot
Really.
According to another aspect of the present invention, it is provided that a kind of off-board charger detection method, including off-board charging
Battery management system analog module in machine detecting device sends charging instruction to off-board charger；Described off-board charger
Detection device receives the curtage of the charging modes output that described off-board charger indicates according to described charging instruction, and
The DC voltage of off-board charger described in Real-time Collection and electric current, and the detection of described off-board charger self obtains
Voltage, electric current and charging status information；The data gathered are carried out processing generation first by described off-board charging machine detecting device
Process data, and process off-board charger described in Data Detection according to parameter preset, the data of described collection and described first,
Wherein said first processes data includes: power, electric energy, the precision of voltage regulation, precision of steady current and ripple factor.
In one embodiment, process described in Data Detection according to parameter preset, the data of described collection and described first
Off-board charger includes: process data and the DC side mark preset by the first of the DC voltage electric current gathered and correspondence thereof
Quasi-parameter compares, to detect the DC side electric parameter of described off-board charger；By gather under preset charged mode
The parameter preset that first process data of DC voltage electric current and correspondence thereof are corresponding with this charging modes compares, with detection
The charging control function of described off-board charger；By gather DC voltage electric current and correspondence first process data with
Voltage x current and the first process data of correspondence thereof that described off-board charger self detection gathered obtains compare, with detection
Whether the detection device within described off-board charger exists fault；By the DC voltage electric current gathered and the of correspondence
The data that one process data show with described off-board charger compare, to detect the display function of described off-board charger.
In one embodiment, described method also includes: non-described in described off-board charging machine detecting device Real-time Collection
The AC voltage and current of Vehicular charger；Carry out described AC voltage x current processing and generate the second process data, and
Described AC voltage x current, described second process data are compared with the AC canonical parameter preset, to detect
State the AC electric parameter of off-board charger, and described second process data are compared with described first process data
Relatively, obtain the delivery efficiency of described off-board charger, to detect the tractor parameter of described off-board charger, wherein said
Two process data includes: power, electric energy, power factor and harmonic value.
In one embodiment, the battery management system analog module in off-board charging machine detecting device is to off-board
Before charger sends charging instruction, described method also includes: if the described battery in described off-board charging machine detecting device
Management System Simulation module detects described off-board charger and the load blocks in described off-board charging machine detecting device
Successful connection, sends to described off-board charger and connects confirmation instruction.
In one embodiment, described off-board charger is received according to described at described off-board charging machine detecting device
After the curtage of the charging modes output of charging instruction instruction, described method also includes: described off-board charging machine examination
Survey the temperature of ohmic load in load blocks described in device Real-time Collection, and control according to the temperature of described ohmic load described negative
Carry unlatching and the rotating speed of fan in module.
In one embodiment, described method also includes: show described parameter preset, the data of described collection, described
One processes data, the second process data and testing result.
Apparatus and method are detected, it is possible to achieve to being arranged on charging station or electrical changing station by the off-board charger of the present invention
Interior off-board charger carries out the Aulomatizeted Detect of on-the-spot function, it is ensured that the safe operation at electric automobile charging and conversion electric station.Can
To detect the DC side electric parameter of off-board charger, and, off-board charger is it is generally required to could be normal with BMS communication
Work, this detection device is by battery management system analog module (i.e. simulation BMS function) and off-board charger communication, not only
Can ensure that the normal startup of off-board charger, it is also possible to control off-board charger by communication instruction and perform corresponding behaviour
Make, gather and be calculated currently practical data, with parameter preset (or data that the internal detection of off-board charger obtains, or
The data that off-board charger shows) compare, thus the merits such as the charging detecting off-board charger controls, internal detection, display
Energy.It addition, load blocks possesses the standardization direct-current charging interface of electric automobile, conveniently it is attached with off-board charger,
The interface avoiding load does not mates with off-board charger interface, needs to use the situation of patchcord, thus decreases and disconnect
The flow process of line.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description is used for explaining the present invention, is not intended that limitation of the invention.In the accompanying drawings:
Fig. 1 is the structural representation one of the off-board charging machine detecting device of the embodiment of the present invention；
Fig. 2 is the structural representation two of the off-board charging machine detecting device of the embodiment of the present invention；
Fig. 3 is the structural representation three of the off-board charging machine detecting device of the embodiment of the present invention；
Fig. 4 is the structural representation four of the off-board charging machine detecting device of the embodiment of the present invention；
Fig. 5 is the structural representation five of the off-board charging machine detecting device of the embodiment of the present invention；
Fig. 6 is the flow chart of the off-board charger detection method of one embodiment of the invention；
Fig. 7 is the flow chart of the off-board charger detection method of another embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on this
Inventive embodiment, the every other enforcement that those of ordinary skill in the art are obtained under not making creative work premise
Example, broadly falls into protection scope of the present invention.
Embodiments providing a kind of off-board charging machine detecting device, Fig. 1 is the off-board of the embodiment of the present invention
The structural representation one of charging machine detecting device.As it is shown in figure 1, off-board charging machine detecting device 10 includes: DC side data
Acquisition module 11, load blocks 12, battery management system analog module 13, charger status information capture module 14 and data
Process and control module 15.Below its structure is described in detail.
DC side data acquisition module 11, is connected to the outfan of off-board charger 20, off-board for Real-time Collection
The DC voltage of charger 20 and electric current.Concrete, the alternating voltage of grid side is changed by off-board charger by rectification
For the DC voltage needed for charging electric vehicle, DC voltage and the electric current of the off-board charger of Real-time Collection 20 (i.e. export
The voltage and current of end), other electric parameters of DC side, such as, merit are calculated according to the DC voltage gathered and galvanometer
Rate, electric energy, ripple factor (also referred to as output ripple virtual value), the precision of voltage regulation and precision of steady current etc., by the data of above-mentioned collection
(DC voltage and electric current) and/or calculated data (other electric parameters of DC side), with off-board charger 20
DC side canonical parameter (or index) compare, whether meet and want detecting the DC side data of off-board charger 20
Ask, it is ensured that the safe operation of off-board charger 20.DC side data acquisition module 11 could be arranged to detachable module, with side
Dismantle the most according to actual needs.
Load blocks 12, has direct-current charging interface, is connected to off-board charger 20 by charging connection wire, for mould
Intend rechargeable battery.This load blocks 12, as the rechargeable battery of simulation, can consume the electric energy of off-board charger 20 output.Tool
Body, load blocks 12 can pass through controller local area network (Controller Area Network, referred to as CAN) bus
Interface communicates with off-board charger 20, and has the standardization direct-current charging interface of electric automobile, by charging even
Wiring is attached with off-board charger 20, receives the direct current energy of off-board charger 20 output, it is to avoid connecing of load
Mouth does not mates with the interface of off-board charger, needs to use the situation of patchcord.
Battery management system analog module 13, is connected to load blocks 12, for sending communication to off-board charger 20
Instruction.Wherein, communication instruction may include that connection confirms instruction, for indicating off-board charger 20 to charge to load blocks
Charging modes or the instruction charging instruction that has been filled with of electricity.Charging modes can be to charge according to Flat Amount, be full of with being
Only, according to set time charging, constant-current charge, constant-voltage charge, trickle charge etc., pre-set and store each charging modes pair
The parameter answered.Concrete, battery management system analog module 13 can be advised according to national standard (such as, GB/T27930-2011)
Fixed communication protocol simulation BMS and the communication instruction of off-board charger 20, by CAN communication interface and off-board charger 20
Communicate, to detect the charging control function of off-board charger 20.Battery management system analog module 13 can be by soft
Part simulated implementation.
Charger status information capture module 14, is connected to off-board charger 20, is used for gathering off-board charger 20
Self detects voltage, electric current and the charging status information obtained.Wherein, charging status information can include off-board charger 20
Currently used charging modes, such as, according to Flat Amount charging, be full of till, according to set time charging, constant-current charge,
Constant-voltage charge, trickle charge etc..Off-board charger 20 is internally provided with detection charger output voltage, output electric current and charging
The detection device of the information such as state, the data that detection obtains can show screen display at charger.By actual DC side number
According to (DC side data acquisition module 11 gather data and/or to gather data carry out process generate process data) with fill
Motor internal detect obtain data (charger status information capture module 14 gather data and/or to gather data enter
Row processes the process data generated, such as, electric energy, power, the precision of voltage regulation, precision of steady current and ripple factor etc.) compare, can sentence
Break and whether the detection device within off-board charger 20 exists fault.Alternatively, it is also possible to by actual DC side data with
The data of off-board charger 20 display compare, and the display function detecting off-board charger 20 is the most normal.
Data process and control module 15, are connected to DC side data acquisition module 11, battery management system analog module
13 and charger status information capture module 14, it is used for controlling battery management system analog module 13 to off-board charger 20
Send communication instruction, and the data gathering DC side data acquisition module 11 and charger status information capture module 14 are carried out
Process and generate the first process data, and process the off-board charger of Data Detection according to parameter preset, the data of collection and first
20.Concrete, the particular content of the communication instruction of transmission can be determined according to the information of user's input.The data gathered are carried out
Process and generate the first process data, be i.e. calculated other parameters according to the data gathered, such as, calculate according to the data gathered
Obtain power, electric energy, the precision of voltage regulation, precision of steady current, ripple factor etc..
By above-described embodiment integration off-board charging machine detecting device, it is possible to achieve to be arranged on charging station or
Off-board charger 20 in electrical changing station carries out the Aulomatizeted Detect of on-the-spot function, it is ensured that the safety at electric automobile charging and conversion electric station
Run.The DC side electric parameter of off-board charger 20 can be detected, and, off-board charger 20 is it is generally required to and BMS
Communication could normally work, and this detection device is filled with off-board by battery management system analog module (i.e. simulation BMS function)
Motor 20 communicates, and is possible not only to ensure the normal startup of off-board charger 20, it is also possible to controlled off-board by communication instruction
Charger 20 performs the operation of correspondence, gathers and be calculated currently practical data, with parameter preset (or in off-board charger
The data that obtain are detected in portion, or the data that show of off-board charger) compare, thus detect the charging control of off-board charger 20
The functions such as system, internal detection, display.It addition, load blocks possesses the standardization direct-current charging interface of electric automobile, convenient with non-
Vehicular charger 20 is attached, it is to avoid the interface of load does not mates with off-board charger interface, needs use patchcord
Situation, thus decrease the flow process disconnecting line.
In one embodiment, data process and may be used for DC side data collecting module collected with control module 15
First process data (the DC side data of the most above-mentioned reality) of data and correspondence thereof is carried out with the DC side canonical parameter preset
Relatively, to detect the DC side electric parameter of off-board charger 20.
In one embodiment, data process and may be used for DC side data under preset charged mode with control module 15
The parameter preset that the data of acquisition module collection and the first of correspondence process data corresponding with this charging modes compares, with
Detect the charging control function of off-board charger 20.
In one embodiment, data process and may be used for DC side data collecting module collected with control module 15
At the data and corresponding first that first process data of data and correspondence thereof gather with charger status information capture module
Reason data (related data of the internal detection of the most off-board charger 20) compare, to detect the detection within off-board charger 20
Whether device exists fault.
In one embodiment, data process and may be used for DC side data collecting module collected with control module 15
The data that first process data of data and correspondence thereof show with off-board charger 20 compare, to detect off-board charger 20
Display function.
By above-mentioned several embodiments, it is possible to achieve off-board charger 20 to be carried out automatization's inspection of on-the-spot various functions
Survey, it is ensured that the safe operation at electric automobile charging and conversion electric station.Of course, it is possible to detect the most a certain item or a few according to the actual requirements
?.
In one embodiment, battery management system analog module 13 may include that CAN communication interface, man-machine interaction circle
Face, measurement module, electrokinetic cell model and control unit.Wherein, CAN communication interface is used for off-board charger 20 and cell tube
Communication connection between reason system simulation module 13, is the transmission channel of charging instruction, meets GB/T27930-2011 regulation
Communication protocol, the form of CAN communication interface can be the terminal on the charging inlet of load blocks 12, and load blocks 12 is by filling
Electrical interface is connected with off-board charger 20, then the battery management system analog module 13 being connected with load blocks 12 can pass through
CAN communicates with off-board charger 20.Human-computer interaction interface, carries out system configuration and display system fortune for user
Row information.Measurement module, for monitoring the output of off-board charger 20.Electrokinetic cell model, is simulation power battery charging
The core of response.Control unit, is connected with above-mentioned each unit respectively, is substantially carried out processing data information, and realizes each
Unit information is mutual.
In actual applications, battery management system analog module 13 can pre-set battery that load blocks simulated
Charging modes and corresponding parameter (such as, the rated voltage of charging, maximum current etc.), and monitor the state of battery, example in real time
Such as, current electric quantity, it is full of required remaining time etc., sends the state of battery to off-board charger 20 so that off-board fill
Motor 20 is according to the suitable electric energy of the State-output of battery.When the condition that satisfied charging terminates, send instruction and control off-board
Charger 20 complete charge.It addition, battery management system analog module 13 can also utilize button or touch screen to set as required
Put the current state-of-charge (State of Charge, referred to as SOC, or referred to as dump energy) of battery, need to use to determine
Charging modes (such as, constant-voltage charge, constant-current charge or trickle charge etc.), data process with control module 15 control cell tube
Reason system simulation module 13 produces corresponding communication instruction, with off-board charging according to the flow process of GB/T27930-2011 defined
It is mutual that machine 20 carries out information, starts off-board charger 20, to detect the off-board charger 20 every finger in charging process
Whether mark or parameter meet requirement.
In one embodiment, as in figure 2 it is shown, above-mentioned off-board charging machine detecting device 10 can also include: AC
Data acquisition module 16, is connected to the input of off-board charger 20, for the exchange of the off-board charger of Real-time Collection 20
Side voltage and current；Wherein, data process and control module 15, are additionally coupled to AC data acquisition module 16, specifically for
The data gathering AC data acquisition module 16 process, and generate the second process data, and by AC data acquisition
The collection data of module collection, the second process data compare with the AC canonical parameter preset, to detect off-board charging
The AC electric parameter of machine 20, wherein the second process data include: power, electric energy, power factor and harmonic value.
In the present embodiment, it is also possible to detected the AC electricity of off-board charger 20 by AC data acquisition module 16
Gas parameter, the voltage and current (i.e. the voltage and current of input) of Real-time Collection off-board charger 20 AC, and according to
The AC voltage and current gathered calculates other electric parameters of AC, and such as, power, electric energy, power factor are harmonious
Wave numbers etc., by the data (AC voltage and current) of above-mentioned collection and/or calculated data, (other of AC are electric
Parameter), compare with the AC canonical parameter (or index) of off-board charger 20, to detect off-board charger 20
Whether AC data meet requirement, it is ensured that the safe operation of off-board charger 20.
In one embodiment, data process and can also process data (such as, AC by second with control module 15
Power) compare with the first process data (such as, the power of DC side), obtain the delivery efficiency of off-board charger 20,
To detect the tractor parameter of off-board charger 20.In the present embodiment, detect non-in conjunction with DC side data and AC data
The tractor parameter of Vehicular charger 20, concrete, can be by the delivery efficiency of calculated off-board charger 20, with default
Standard output efficiency comparison, to detect the overall performance of off-board charger 20.
It should be noted that in actual applications, can decide whether to gather the data of AC according to actual needs, because of
This, can be set to detachable module by AC data acquisition module 16, dismantle according to actual needs to facilitate.
DC side data acquisition module 11 and AC data acquisition module 16 all may be configured as detachable module, improve
The convenience of Site Detection.
In one embodiment, as it is shown on figure 3, load blocks 12 may include that ohmic load 121 and fan 122.Its
In, fan 122 is connected to ohmic load 121, for dispelling the heat to ohmic load 121.
In the present embodiment, when off-board charger being detected due to off-board charging machine detecting device, load blocks
As the rechargeable battery of simulation, load caloric value therein is relatively big, therefore, is equipped with fan for load heat radiation, it is ensured that load is just
Often work.
In one embodiment, load blocks 12 also includes: temperature collecting cell 123, is connected to ohmic load 121, uses
In the temperature gathering ohmic load 121；Data process and control module 15, are additionally operable to the temperature according to ohmic load 121 and control
The unlatching of fan 123 and rotating speed.
In the present embodiment, this detection device also has load temperature collection and radiating control function, can be according to temperature etc.
The heat-sinking capability of parametric synthesis analysis and Control fan, to dispel the heat as early as possible, such as, rotating speed gear is 1 grade, 2 grades and 3 grades, 3 grades of rotating speeds
The highest, when load temperature reaches a preset value, open fan, dispel the heat in time；When load temperature reaches default higher temperature, control
The rotating speed of fan processed enters 1 grade；If current gear is 3 grades, the temperature of load lowers, and the rotating speed controlling fan enters properly
Gear (such as, 2 grades or 1 grade) or close fan, it is to avoid the waste of electricity.Furthermore it is possible to arrange adjustable ohmic load,
To meet different testing requirements.Except ohmic load, it is possible to use other can be with the element of power consumption or multiple element
The module of composition.It is of course also possible to the parameters such as the power of Real-time Collection ohmic load, as the auxiliary ginseng controlling rotation speed of the fan
Examine.
In one embodiment, as shown in Figure 4, above-mentioned off-board charging machine detecting device 10 can also include: display mould
Block 17, is connected to data and processes and control module 15, and for showing parameter preset, the data of collection, (first processes to process data
Data and second process data) and testing result.Concrete, if acquiring DC side data, then can show collection
DC side data, the process data that DC side data are carried out process generation and testing result；If acquiring AC number
According to, then can show the AC data of collection, carry out AC data processing the process data generated and testing result；
If performing detection charging control function, then can show electric current, voltage and charged state etc. that the internal detection of charger obtains
Information, corresponding process data and testing result.User is facilitated to check relevant data and testing result, if off-board charging
Machine 20 fault, can be with on-call maintenance.Of course, it is possible to arrange content to be shown the most voluntarily.
As can be seen from the above embodiments, the off-board charging machine detecting device that the present invention provides, can pass through DC side
Data acquisition module 11 and data process detect the DC side electric parameter of off-board charger with control module 15, by directly
At stream side data acquisition module 11, battery management system analog module 13, charger status information capture module 14 and data
Reason and control module 15 detect the charging control function of off-board charger, internal measuring ability and display function, by exchange
Side data acquisition module 16 and data process detect the AC electric parameter of off-board charger with control module 15.
For example, the communication instruction that battery management system analog module 13 sends is charging instruction (instruction charging modes
For constant-current charge), DC side data acquisition module 11 gathers the voltage x current of the actual output of off-board charger.If currently made
Charging modes be not constant-current charge, then may determine that off-board charger fault；If currently used charging modes is
Constant-current charge, in addition it is also necessary to the parameters such as the voltage x current of the actual output of comparison are the most consistent with default constant-current charge parameter, such as,
Data process and predetermined current parameter corresponding with constant-current charge mode for the current value of collection are compared with control module 15, if two
Person is identical or the two difference is in the range of allowable error, then just may determine that the constant-current charge mode function of off-board charger
Often, if the two difference is too many, then may determine that off-board charger fault, need repairing.Certainly, charger status information collection
Collection module 14 can gather output voltage, output electric current and the currently used charging side that the internal detection of off-board charger obtains
The data that the actual output data of charger and internal detection obtain are compared, in judging charger by the information such as formula
Portion's detection performance is the most normal.
And for example, the communication instruction that battery management system analog module 13 sends is that (instruction charging modes is for pressing for charging instruction
Charge according to Flat Amount), DC side data acquisition module 11 gathers the voltage x current of the actual output of off-board charger.If worked as
The charging modes of front use charges not in accordance with Flat Amount, then may determine that off-board charger fault；If it is currently used
Charging modes be to charge according to Flat Amount, in addition it is also necessary to relatively each parameter of actual output whether with default according to fixing gold
Volume charge parameter is consistent, and such as, data process parameter and corresponding process data thereof such as the electric currents of collection with control module 15
The parameter preset (such as, electric current, time etc.) that (such as power etc.) is corresponding with according to Flat Amount charging modes compares, if the two
Identical or the two difference in the range of allowable error, then may determine that off-board charger according to Flat Amount charging modes
Function is normal, if the two difference is too many, then may determine that off-board charger fault, needs repairing.
For another example, the communication instruction that battery management system analog module 13 sends is charging instruction (instruction electricity has been filled with),
Then need the voltage x current of the actual output of off-board charger gathered according to DC side data acquisition module 11, data process and
Control module 15 detects off-board charger and has stopped charging, thus detects the fully charged from dynamic circuit breaker of off-board charger
Electricity Functional, causes damage to battery to avoid overcharging.
It should be noted that the parameters of charger duty under each charging modes can be verified successively
Whether (such as, voltage x current accuracy, ripple factor, voltage stabilization and current stabilization precision, charge efficiency, power factor, harmonic current etc.)
Meet requirement.
Used above, term " unit " or " module " can realize the software of predetermined function and/or the group of hardware
Close.Certainly, the simply one signal of above-mentioned Module Division divides, and the invention is not limited in this.Can be by DC side in this device
Data acquisition module is according to other electric parameters of the DC voltage Current calculation DC side gathered, by AC data acquisition
Module calculates other electric parameters of AC according to the AC voltage x current gathered rather than is processed by data and control mould
Block performs the process to the data gathered；Data can also be processed the function with control module and display module and be integrated in one
Realizing in individual module, such as, processing module performs the process with data, compares, shows and control relevant function, as long as can be real
The Module Division of the existing purpose of the present invention, all should belong to protection scope of the present invention.
Below in conjunction with Fig. 5, the information between off-board charger and off-board charging machine detecting device and electric energy stream are described
To, as it is shown in figure 5, the line of four-headed arrow represents flow of information, the line of unidirectional arrow represents electric energy stream.Off-board charger detection dress
Put and include: AC data acquisition module 1 (detachable module), DC side data acquisition module 2 (detachable module), adjustable electric
Resistance load blocks (there is temperature acquisition function and fan) 3, battery management system (BMS) analog module 4, charger status information
Acquisition module 5 and data process, show, analyze, control module 6.Wherein, off-board charger is by three-phase alternating-current powered, defeated
Go out direct current.Data process, show, analyze, control module 6, can calculate the data collected, statistical analysis, and show
Show on interactive interface；BMS analog module 4 can be controlled according to the operation of testing staff to refer to the transmission communication of off-board charger
Order, verifies the charging control function of off-board charger；Startup and tune can also be sent to fan according to the temperature of ohmic load
The instruction of turn over speed grade, promotes the heat radiation of load.The function of other modules describes in detail the most in the above-described embodiments, the most not
Repeat again.
The embodiment of the present invention additionally provides a kind of off-board charger detection method, can be based on described by above-described embodiment
Off-board charging machine detecting device realize.Fig. 6 is the flow chart of the off-board charger detection method of one embodiment of the invention,
As shown in Figure 6, the method comprises the steps:
Step S601, the battery management system analog module in off-board charging machine detecting device is sent out to off-board charger
Send charging instruction.
Wherein, the charging modes that charging instruction is charged to load blocks for indicating off-board charger, such as, according to solid
Deposit volume charging, be full of till, according to set time charging, constant-current charge, constant-voltage charge, trickle charge etc., pre-set also
Store the parameter that each charging modes is corresponding.Certainly, charging instruction also can indicate that electricity has been filled with, to detect off-board charging
Whether machine can automatically power off, and prevents from overcharging rechargeable battery.Concrete, can determine according to the information of user's input and send out
Particular content in the charging instruction sent, the information of user's input can be arrange battery that load blocks simulated current
SOC state, may determine that charging modes (such as, constant-voltage charge, constant-current charge or the trickle charge needing to use according to this state
Deng).
Step S602, off-board charging machine detecting device receives the charging side that off-board charger indicates according to charging instruction
The curtage of formula output, and the DC voltage of the off-board charger of Real-time Collection and electric current, and off-board charger
Self detects voltage, electric current and the charging status information obtained.
Wherein, charging status information can include the charging modes that off-board charger is currently used, off-board to detect
Whether charger can use correct charging modes to be charged according to instruction, thus verifies whether this function meets requirement.
Other electric parameters of DC side, such as, power, electric energy, voltage stabilizing can be calculated according to the DC voltage gathered and galvanometer
Precision and precision of steady current etc., by actual DC side data, (data of collection and/or carry out the data gathered process and generate
Process data) compare with the DC side canonical parameter (or index) of off-board charger, to detect off-board charger
Whether DC side data meet requirement, it is ensured that the safe operation of off-board charger.
Step S603, off-board charging machine detecting device carries out processing generation the first process data to the data gathered, and
The off-board charger of Data Detection is processed according to parameter preset, the data of collection and first.Concrete, the data gathered are carried out
Process and generate the first process data, be i.e. calculated other parameters according to the data gathered, such as, calculate according to the data gathered
Obtain power, electric energy, the precision of voltage regulation, precision of steady current and ripple factor etc..
By real data (data of collection and/or carry out these data processing the process data generated) and the non-car preset
Carry canonical parameter that charger normally works (or data that the internal detection of off-board charger obtains, or off-board charger shows
The data shown) compare, i.e. would know that various functions or performance (such as, DC side electric parameter, the friendship of off-board charger
Stream side electric parameter, charging control function, internal measuring ability, display function etc.) whether meet requirement.The parameter preset is permissible
It is charging modes and the parameter of correspondence thereof of the battery that battery management system analog module pre-sets, such as, charging specified
Voltage, maximum current etc..
By above-described embodiment integration off-board charger detection method, it is possible to achieve to be arranged on charging station or
Off-board charger in electrical changing station carries out the Aulomatizeted Detect of on-the-spot function, it is ensured that the safety fortune at electric automobile charging and conversion electric station
OK.The DC side electric parameter of off-board charger can be detected, and, off-board charger is it is generally required to BMS communication
Can normally work, this detection device is led to off-board charger by battery management system analog module (i.e. simulation BMS function)
Letter, is possible not only to ensure the normal startup of off-board charger, it is also possible to control off-board charger by communication instruction and perform
Corresponding operation, gathers and is calculated currently practical data, and (or off-board charger internal detection obtains with parameter preset
Data, or the data that show of off-board charger) compare, thus the charging detecting off-board charger controls, internal detection, aobvious
The function such as show.It addition, load blocks possesses the standardization direct-current charging interface of electric automobile, conveniently carry out with off-board charger
Connect, it is to avoid the interface of load does not mates with off-board charger interface, need the situation of use patchcord, thus decrease
Disconnect the flow process of line.
In one embodiment, the off-board charger of Data Detection is processed according to parameter preset, the data of collection and first
May is that and the DC voltage electric current of collection and the first process data of correspondence thereof are carried out with the DC side canonical parameter preset
Relatively, to detect the DC side electric parameter of off-board charger；
In one embodiment, the off-board charger of Data Detection is processed according to parameter preset, the data of collection and first
May is that first process data and this charging modes by the DC voltage electric current gathered under preset charged mode and correspondence thereof
Corresponding parameter preset compares, to detect the charging control function of off-board charger；
In one embodiment, the off-board charger of Data Detection is processed according to parameter preset, the data of collection and first
May is that off-board charger self inspection of the first process data by the DC voltage electric current gathered and correspondence thereof and collection
First process data of the voltage x current that records and correspondence thereof compare, and detecting the detection device within off-board charger are
No there is fault；
In one embodiment, the off-board charger of Data Detection is processed according to parameter preset, the data of collection and first
May is that the data ratio DC voltage electric current of collection and the first process data of correspondence thereof shown with off-board charger
Relatively, to detect the display function of off-board charger.
By above-mentioned several the present embodiment, it is possible to achieve off-board charger to be carried out automatization's inspection of on-the-spot various functions
Survey, it is ensured that the safe operation at electric automobile charging and conversion electric station.Of course, it is possible to detect the most a certain item or a few according to the actual requirements
?.
In one embodiment, except detecting off-board charger DC side electric parameter, it is also possible to detect according to demand
Whether the actual value of off-board charger AC is consistent with the AC canonical parameter preset, and concrete, said method also may be used
To include: the AC voltage and current of the off-board charging off-board charger of machine detecting device Real-time Collection；To AC electricity
Current voltage carries out processing generation the second process data, and by AC voltage x current, the second process data and the AC preset
Canonical parameter compares, and to detect the AC electric parameter of off-board charger, wherein the second process data include: merit
Rate, electric energy, power factor and harmonic value.
In the present embodiment, other electric parameters of AC can be calculated according to the AC voltage and current gathered,
Such as, power, electric energy and harmonic value etc., the AC canonical parameter of AC real data and off-board charger (or is referred to
Mark) compare, to detect whether the AC data of off-board charger meet requirement, it is ensured that the safety of off-board charger
Run.
In one embodiment, said method can also include: by second process data (such as, the power of AC) with
First processes data (such as, the power of DC side) compares, and obtains the delivery efficiency of off-board charger, to detect non-car
Carry the tractor parameter of charger 20.In the present embodiment, detect off-board charger in conjunction with DC side data and AC data
Tractor parameter, concrete, can be by the delivery efficiency of calculated off-board charger, with default standard output efficiency
Relatively, to verify the overall performance of off-board charger.The detection of AC electric parameter can be with other parameters or the inspection of function
Survey and carry out simultaneously, it is possible to carried out before other detect, or carry out after other detect.
In one embodiment, as it is shown in fig. 7, before step S601, said method can also include:
Step S604, if not the battery management system analog module in vehicle-mounted charge machine testing device detects off-board filling
Motor and the load blocks successful connection in off-board charging machine detecting device, send connection confirmation to off-board charger and refer to
Order.
In the present embodiment, before off-board charger is charged according to charging instruction, receive battery management system mould
Intend the connection confirmation instruction that module (i.e. simulation BMS function) sends to off-board charger, it is ensured that off-board charger can be just
Often it is charged, such that it is able to parameter and function to off-board charger carry out Site Detection.
In one embodiment, after step S602, said method can also include: off-board charging machine detecting device
The temperature of ohmic load and power in Real-time Collection load blocks, and control fan in load blocks according to the temperature of ohmic load
Unlatching and rotating speed.
In the present embodiment, when detecting charger due to off-board charging machine detecting device, load blocks is as mould
The rechargeable battery intended, load caloric value therein is relatively big, therefore, is equipped with fan for load heat radiation.Also there is load temperature adopt
Collection and radiating control function, can be according to the heat-sinking capability of the parametric synthesis analysis and Control fans such as temperature, to dispel the heat as early as possible.Separately
Outward, adjustable ohmic load can be set, to meet different testing requirements.Except ohmic load, it is possible to use other can
Element with power consumption.It is of course also possible to the parameters such as the power of Real-time Collection ohmic load, as controlling the auxiliary of rotation speed of the fan
Help reference.
In one embodiment, said method can also include: display parameter preset, the data of collection, the first process number
According to, second process data and testing result.Concrete, after off-board charging machine detecting device gathers data, can show
The data gathered；After carrying out the data gathered processing generation process data, process data can be shown；Complete in detection
(that is, by the data gathered and/or process data, with parameter preset (or the data of the internal detection of off-board charger, or non-car
Carry the data that charger shows) compare) after, testing result can be shown.Certainly, during detection, it is also possible to display
Parameter preset, can arrange content to be shown the most voluntarily.In the present embodiment, display relevant information can facilitate
User checks relevant data and testing result, if off-board charger fault, could be with on-call maintenance.
In flow chart or at this, any process described otherwise above or method description are construed as, and expression includes
One or more is for realizing the module of code, fragment or the portion of the executable instruction of the step of specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not by shown or discuss suitable
Sequence, including according to involved function by basic mode simultaneously or in the opposite order, performs function, and this should be by the present invention
Embodiment person of ordinary skill in the field understood.
Should be appreciated that each several part of the present invention can realize by hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, the software that multiple steps or method in memory and can be performed by suitable instruction execution system with storage
Or firmware realizes.Such as, if realized with hardware, with the most the same, available well known in the art under
Any one or their combination in row technology realize: have the logic gates for data signal realizes logic function
Discrete logic, there is the special IC of suitable combination logic gate circuit, programmable gate array (PGA), on-the-spot
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that and realize all or part of step that above-described embodiment method is carried
Suddenly the program that can be by completes to instruct relevant hardware, and described program can be stored in a kind of computer-readable storage medium
In matter, this program upon execution, including one or a combination set of the step of embodiment of the method.
Additionally, each functional unit in each embodiment of the present invention can be integrated in a processing module, it is also possible to
It is that unit is individually physically present, it is also possible to two or more unit are integrated in a module.Above-mentioned integrated mould
Block both can realize to use the form of hardware, it would however also be possible to employ the form of software function module realizes.Described integrated module is such as
When fruit is using the form realization of software function module and as independent production marketing or use, it is also possible to be stored in a computer
In read/write memory medium.Storage medium mentioned above can be read only memory, disk or CD etc..
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Particular embodiments described above, has been carried out the purpose of the present invention, technical scheme and beneficial effect the most in detail
Describe in detail bright, be it should be understood that the specific embodiment that the foregoing is only the present invention, the guarantor being not intended to limit the present invention
Protect scope, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included in this
Within the protection domain of invention.
Claims (12)
1. an off-board charging machine detecting device, it is characterised in that including:
DC side data acquisition module, is connected to the outfan of off-board charger, for charging off-board described in Real-time Collection
The DC voltage of machine and electric current；
Load blocks, has direct-current charging interface, is connected to described off-board charger by charging connection wire, fills for simulation
Electricity battery；
Battery management system analog module, is connected to described load blocks, refers to for sending communication to described off-board charger
Order；
Charger status information capture module, is connected to described off-board charger, is used for gathering described off-board charger certainly
Body detects voltage, electric current and the charging status information obtained；
Data process and control module, are connected to described DC side data acquisition module, described battery management system analog module
With described charger status information capture module, it is used for controlling described battery management system analog module to described off-board charging
Machine sends described communication instruction, and adopts described DC side data acquisition module and described charger status information capture module
The data of collection process, and generate the first process data, and process according to parameter preset, the data of described collection and described first
Off-board charger described in Data Detection；
Wherein said first processes data includes: power, electric energy, the precision of voltage regulation, precision of steady current and ripple factor.
Device the most according to claim 1, it is characterised in that described data process and control module, specifically for by institute
First process data of the data and correspondence thereof of stating DC side data collecting module collected are entered with the DC side canonical parameter preset
Row compares, to detect the DC side electric parameter of described off-board charger；By DC side data described under preset charged mode
The parameter preset that the data of acquisition module collection and the first of correspondence process data corresponding with this charging modes compares, with
Detect the charging control function of described off-board charger；By data and the correspondence thereof of described DC side data collecting module collected
The first process data of gathering with described charger status information capture module of data and the corresponding first process data ratio
Relatively, to detect whether the detection device within described off-board charger exists fault；By described DC side data acquisition module
The data that the data gathered and the first process data of correspondence thereof show with described off-board charger compare, described non-to detect
The display function of Vehicular charger.
Device the most according to claim 1, it is characterised in that described device also includes: AC data acquisition module, even
It is connected to the input of described off-board charger, for the AC voltage and current of charger off-board described in Real-time Collection；
Wherein, described data process and control module, are additionally coupled to described AC data acquisition module, specifically for described
The data of AC data collecting module collected process, and generate the second process data, by described AC data acquisition module
The data of block collection, described second process data compare with the AC canonical parameter preset, described off-board to detect
The AC electric parameter of charger, and described second process data are compared with described first process data, obtain
The delivery efficiency of described off-board charger, to detect the tractor parameter of described off-board charger, wherein said second processes
Data include: power, electric energy, power factor and harmonic value.
Device the most according to claim 1, it is characterised in that described load blocks includes: ohmic load and fan, its
In, described fan is connected to described ohmic load, for dispelling the heat to described ohmic load.
Device the most according to claim 4, it is characterised in that described load blocks also includes: temperature collecting cell, connects
To described ohmic load, for gathering the temperature of described ohmic load；
Wherein, described data process and control module, are additionally operable to the temperature according to described ohmic load and control opening of described fan
Open and rotating speed.
Device the most according to claim 3, it is characterised in that described device also includes: display module, is connected to described number
According to processing and control module, for showing described parameter preset, the data of described collection, described first processing data, at second
Reason data and testing result.
7. an off-board charger detection method, it is characterised in that including:
Battery management system analog module in off-board charging machine detecting device sends charging instruction to off-board charger；
Described off-board charging machine detecting device receives the charging side that described off-board charger indicates according to described charging instruction
The curtage of formula output, and the DC voltage of off-board charger described in Real-time Collection and electric current, and described non-car
Carry charger self and detect voltage, electric current and the charging status information obtained；
The data gathered are carried out processing generation the first process data by described off-board charging machine detecting device, and according to default ginseng
The data of collection several, described and described first process off-board charger described in Data Detection, and wherein said first processes data
Including: power, electric energy, the precision of voltage regulation, precision of steady current and ripple factor.
Method the most according to claim 7, it is characterised in that according to parameter preset, the data of described collection and described
One processes off-board charger described in Data Detection includes:
The DC voltage electric current of collection and the first process data of correspondence thereof are compared with default DC side canonical parameter
Relatively, to detect the DC side electric parameter of described off-board charger；
By the DC voltage electric current gathered under preset charged mode and first process data and this charging modes pair of correspondence thereof
The parameter preset answered compares, to detect the charging control function of described off-board charger；
Described off-board charger self by the first process data of the DC voltage electric current gathered and correspondence thereof with collection
Voltage x current and the first process data of correspondence thereof that detection obtains compare, to detect the detection within described off-board charger
Whether device exists fault；
The data that first process data of the DC voltage electric current gathered and correspondence thereof are shown with described off-board charger
Relatively, to detect the display function of described off-board charger.
Method the most according to claim 7, it is characterised in that described method also includes:
The AC voltage and current of off-board charger described in described off-board charging machine detecting device Real-time Collection；To described
AC voltage x current carries out processing generation the second process data, and by described AC voltage x current, described second process number
Compare according to default AC canonical parameter, to detect the AC electric parameter of described off-board charger, and
Process data to compare described second with described first process data, obtain the delivery efficiency of described off-board charger,
To detect the tractor parameter of described off-board charger, wherein said second processes data includes: power, electric energy, power factor
And harmonic value.
Method the most according to claim 7, it is characterised in that the battery management in off-board charging machine detecting device
Before system simulation module sends charging instruction to off-board charger, described method also includes:
If the described battery management system analog module in described off-board charging machine detecting device detects described off-board fill
Motor and the load blocks successful connection in described off-board charging machine detecting device, send to described off-board charger and connect
Confirm instruction.
11. methods according to claim 10, it is characterised in that receive described at described off-board charging machine detecting device
After the curtage of the charging modes output that off-board charger indicates according to described charging instruction, described method is also wrapped
Include:
The temperature of ohmic load in load blocks described in described off-board charging machine detecting device Real-time Collection, and according to described electricity
The temperature of resistance load controls unlatching and the rotating speed of fan in described load blocks.
12. methods according to claim 9, it is characterised in that described method also includes: show described parameter preset, institute
State the data of collection, described first process data, the second process data and testing result.
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