CN104977535A - Method and device for determining battery state - Google Patents
Method and device for determining battery state Download PDFInfo
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- CN104977535A CN104977535A CN201410131318.3A CN201410131318A CN104977535A CN 104977535 A CN104977535 A CN 104977535A CN 201410131318 A CN201410131318 A CN 201410131318A CN 104977535 A CN104977535 A CN 104977535A
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Abstract
The invention discloses a method for determining a battery state. The method for determining the battery state comprises the steps of respectively determining corresponding voltages of a battery at a first time and a second time, determining corresponding currents of each battery pack in the battery at the first time and the second time; when the first time satisfies two random kinds of conditions selected from three kinds of conditions, determining the first time as the starting point of a battery discharging event; when the second time satisfies two random kinds of conditions selected from the three kinds of conditions, determining the second time as the final point of the battery discharging event; utilizing the final point of the battery discharging event as the starting point of a battery charging event; determining the floating charge value of the battery, and determining the final point of the battery charging event according to the floating charge value. The invention further discloses a device for determining the battery state.
Description
Technical field
The present invention relates to base station power technology, particularly relate to a kind of defining method and device of battery condition.
Background technology
Current mobile communication base station is widely distributed, and the accumulator in base station is the pith of emergency service; Accumulator is that described base station powers when power is off, and accumulator charges while power is being supplied, is convenient to emergency service, and therefore, the accumulator in described base station is often in charge and discharge cycles process.
In the use procedure of accumulator, if the electricity that can not effectively fill accumulator and discharge process control, accumulator can be made to occur the phenomenons such as irreversible sulfuration, withered and bulging, make the decline of described accumulator capacity, the lost of life, finally scrap, so, can operating cost be increased, cause the wasting of resources and environmental pollution.Therefore, there is the phenomenons such as irreversible sulfuration, withered and bulging to prevent accumulator, must the ratio of charge and discharge of calculating accumulator, ensure charge in batteries electricity and to release electricity in the same size, make described accumulator be in charging foot, not over-discharge state.
The detection method of existing conventional accumulator property mostly is physical method or chemical method, maintainer is all needed to detect, therefore, there is the inaccurate problem of testing result caused due to manual operation difference in existing detection method, and cannot accomplish real time implementation, normalization to the detection of accumulator property.At extraction charge in batteries, the data of electric discharge event are to determine charging starting point and the terminal of described accumulator, when electric discharge starting point and terminal, do not drawn by strict theory calculate, but use survey instrument by maintainer or gather battery tension, the methods such as electric current, draw according to data in the past and the experience of self, therefore, cause the charging starting point determined and terminal, electric discharge starting point and terminal inaccurate, make the described charging starting point according to determining and terminal, there is error in the electricity of the electricity that the accumulator that described electric discharge starting point and endpoint calculation go out is filled with and releasing, and then cause the judgement of maintainer to described accumulator property inaccurate, the accumulator finally making it possible to use safely is replaced.
At present, be in low level management state to the management of charge in batteries and electric discharge, do not carry out monitoring management to the situation of charge in batteries and electric discharge, electric discharge is many, charging is few to cause accumulator often to occur, or the situation of electric discharge less, more than charging, makes the frequent overdischarge of accumulator, overcharge.
And for the larger manufacturer of company of accumulator number, managerial demand is carried out to the performance of accumulator and expends larger manpower financial capacity, and maintenance cost is high, management is puzzled large, in addition, lack backstage technical support means in prior art, make the Performance Detection that realizes becoming more meticulous and maintenance management are difficult to for a large amount of accumulators.
Summary of the invention
For solving the technical matters of existing existence, embodiments provide a kind of defining method and device of battery condition, accurately determining the starting point of charge in batteries event and the starting point of terminal and battery discharging event and terminal, laying a good foundation for improving the judgement of maintainer to accumulator property.
Technical scheme of the present invention is achieved in that the defining method embodiments providing a kind of battery condition, and described accumulator comprises: at least two electric battery; Described method comprises:
Determine that described accumulator is at the first moment and voltage corresponding to the second moment respectively, determine that each electric battery in described accumulator is at described first moment and electric current corresponding to the second moment, and determined that described accumulator was at voltage corresponding to a upper moment in described first moment, at voltage corresponding to the subsequent time in described first moment, at voltage corresponding to the subsequent time of the subsequent time in described first moment and at voltage corresponding to the subsequent time in described second moment;
Described first moment is when meeting any two kinds in following three kinds of conditions, determines that described first moment is the starting point of described battery discharging event; Wherein, described three kinds of conditions are respectively: described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1, at voltage V corresponding to described first moment
t, at voltage V corresponding to the subsequent time in described first moment
t+1and at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2the voltage that difference between middle voltage meets electric discharge event corresponding is pre-conditioned; At least one electric battery in described accumulator is less than the first electric current predetermined threshold value corresponding to electric discharge event at the electric current that described first moment is corresponding; Determine that described first moment is the starting point of described battery discharging event by switching value;
Described second moment is when meeting any two kinds in following three kinds of conditions, determines that described second moment is the terminal of described battery discharging event; Wherein, described three kinds of conditions are respectively: described accumulator is at voltage V corresponding to the subsequent time in described second moment
p+1, with at voltage V corresponding to described second moment
pdifference meet voltage predetermined threshold value corresponding to electric discharge event; All electric battery in described accumulator are all greater than the second electric current predetermined threshold value corresponding to electric discharge event at the electric current that described second moment is corresponding; Determine that described second moment is the terminal of described battery discharging event by switching value;
Using the starting point of the terminal of described battery discharging event as described charge in batteries event;
Determine the floating charge value of described accumulator, determine the terminal of described charge in batteries event according to described floating charge value.
Further, described method also comprises:
The charge value that described accumulator is released is determined according to the starting point of described battery discharging event and the terminal of electric discharge event;
The charge value that described accumulator is filled with is determined according to the described starting point of charge in batteries event and the terminal of charge event;
The ratio of the charge value that the charge value be filled with according to described accumulator and described accumulator are released determines the state of described accumulator.
Further, described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1, at voltage V corresponding to described first moment
t, at voltage V corresponding to the subsequent time in described first moment
t+1and at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2the voltage that difference between middle voltage meets electric discharge event corresponding is pre-conditioned, comprising:
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the first predetermined threshold value; Or,
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to the subsequent time in described first moment
t+1difference be more than or equal to the first predetermined threshold value; Or,
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to the subsequent time in described first moment
t+1difference be greater than the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t+1with described accumulator at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2difference be more than or equal to the first predetermined threshold value, and described accumulator is at voltage V corresponding to the subsequent time in described first moment
t+1with described accumulator at voltage V corresponding to described first moment
tdifference be less than the second predetermined threshold value.
Further, the described floating charge value determining described accumulator, determine the terminal of described charge in batteries event according to described floating charge value, comprising:
When carrying out charged state, current value when all electric battery of described accumulator being in same current value is as the floating charge value of described accumulator;
According to described floating charge value determination floating charge threshold value;
Moment corresponding when the electric current of all electric battery in described accumulator being all less than floating charge threshold value is as the terminal of described charge in batteries event.
The embodiment of the present invention additionally provides a kind of determining device of battery condition, and described accumulator comprises: at least two electric battery; Described device comprises:
Collecting unit, for determining that described accumulator is at the first moment and voltage corresponding to the second moment respectively, determine that each electric battery in described accumulator is at described first moment and electric current corresponding to the second moment, and determined that described accumulator was at voltage corresponding to a upper moment in described first moment, at voltage corresponding to the subsequent time in described first moment, at voltage corresponding to the subsequent time of the subsequent time in described first moment and at voltage corresponding to the subsequent time in described second moment;
First determining unit, during for meeting any two kinds in following three kinds of conditions in described first moment, determines that described first moment is the starting point of described battery discharging event; Wherein, described three kinds of conditions are respectively:
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1, at voltage V corresponding to described first moment
t, at voltage V corresponding to the subsequent time in described first moment
t+1and at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2the voltage that difference between middle voltage meets electric discharge event corresponding is pre-conditioned; At least one electric battery in described accumulator is less than the first electric current predetermined threshold value corresponding to electric discharge event at the electric current that described first moment is corresponding; Determine that described first moment is the starting point of described battery discharging event by switching value;
Second determining unit, during for meeting any two kinds in following three kinds of conditions in described second moment, determines that described second moment is the terminal of described battery discharging event; Wherein, described three kinds of conditions are respectively:
Described accumulator is at voltage V corresponding to the subsequent time in described second moment
p+1, with at voltage V corresponding to described second moment
pdifference meet voltage predetermined threshold value corresponding to electric discharge event; All electric battery in described accumulator are all greater than the second electric current predetermined threshold value corresponding to electric discharge event at the electric current that described second moment is corresponding; Determine that described second moment is the terminal of described battery discharging event by switching value;
3rd determining unit, for using the starting point of the terminal of described battery discharging event as described charge in batteries event;
4th determining unit, for determining the floating charge value of described accumulator, determines the terminal of described charge in batteries event according to described floating charge value.
Further, described device also comprises:
First electricity computing unit, for determining according to the starting point of described battery discharging event and the terminal of electric discharge event the charge value that described accumulator is released;
Second electricity computing unit, for determining according to the described starting point of charge in batteries event and the terminal of charge event the charge value that described accumulator is filled with;
Status determining unit, the ratio of the charge value of releasing for the charge value that is filled with according to described accumulator and described accumulator determines the state of described accumulator.
Further, described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1, at voltage V corresponding to described first moment
t, at voltage V corresponding to the subsequent time in described first moment
t+1and at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2the voltage that difference between middle voltage meets electric discharge event corresponding is pre-conditioned, comprising:
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the first predetermined threshold value; Or,
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to the subsequent time in described first moment
t+1difference be more than or equal to the first predetermined threshold value; Or,
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to the subsequent time in described first moment
t+1difference be greater than the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t+1with described accumulator at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2difference be more than or equal to the first predetermined threshold value, and described accumulator is at voltage V corresponding to the subsequent time in described first moment
t+1with described accumulator at voltage V corresponding to described first moment
tdifference be less than the second predetermined threshold value.
Further, described 4th determining unit also comprises:
Floating charge value determination subelement, for when carrying out charged state, current value when all electric battery of described accumulator being in same current value is as the floating charge value of described accumulator;
Floating charge threshold value determination subelement, for according to described floating charge value determination floating charge threshold value;
Terminal determination subelement, the moment corresponding during for the electric current of all electric battery in described accumulator being all less than floating charge threshold value is as the terminal of described charge in batteries event.
The defining method of battery condition provided by the present invention and device, process battery condition can determined is grasped to do by existing artificial physics and is changed information-based automatic analysis into, by the data collection and analysis process implementation robotization of accumulator, therefore, can carry out in real time accumulator, Performance Detection accurately and efficiently, effectively extend the life-span of accumulator, reduce accumulator failure rate;
Because the embodiment of the present invention adopts information-based automatic analysis process, therefore, shorten accumulator technically, the Performance Detection flow process of especially extensive battery pack.Again because the embodiment of the present invention is by strict calculating process, accurately determine the starting point of charge in batteries event and the starting point of terminal and battery discharging event and terminal, and then the accurate charge value that is filled with of calculating accumulator and the accumulator ratio of charge value of releasing, therefore, lay a good foundation for improving the judgement of maintainer to accumulator property, farthest extend the serviceable life of accumulator, saved resource, reduced cost.
In addition, use defining method and the device of the informationalized battery condition of the embodiment of the present invention, real-time, the reliable technology platform of enterprise can be made, optimize battery management maintenance process, realize electronic O&M, make the performance of accumulator measurable, mensurable, can assess, can verify, the management of accumulator is made to have conformability, extensibility, effectively reduce handling cost and the failure risk of the especially extensive battery pack of accumulator, thus for improving the performance of enterprises, raising brand value and lay a good foundation.
Accompanying drawing explanation
Fig. 1 is the realization flow schematic diagram of the defining method of embodiment of the present invention battery condition;
Fig. 2 is the structural representation of the determining device of embodiment of the present invention battery condition;
Fig. 3 is the structural representation of the embodiment of the present invention the 4th determining unit.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing, embodiments of the present invention are described in detail.
Embodiment 1
Fig. 1 is the schematic flow sheet of the defining method of embodiment of the present invention battery condition; Described accumulator comprises: at least two electric battery; Described method comprises:
Step 101: determine that described accumulator is at the first moment and voltage corresponding to the second moment respectively, determine that each electric battery in described accumulator is at described first moment and electric current corresponding to the second moment, and determined that described accumulator was at voltage corresponding to a upper moment in described first moment, at voltage corresponding to the subsequent time in described first moment, at voltage corresponding to the subsequent time of the subsequent time in described first moment and at voltage corresponding to the subsequent time in described second moment;
Step 102: when described first moment meets any two kinds in following three kinds of conditions, determines that described first moment is the starting point of described battery discharging event; Wherein, described three kinds of conditions are respectively:
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1, at voltage V corresponding to described first moment
t, at voltage V corresponding to the subsequent time in described first moment
t+1and at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2the voltage that difference between middle voltage meets electric discharge event corresponding is pre-conditioned; At least one electric battery in described accumulator is less than the first electric current predetermined threshold value corresponding to electric discharge event at the electric current that described first moment is corresponding; Determine that described first moment is the starting point of described battery discharging event by switching value;
Here, when accumulator carries out electric discharge event, the voltage of accumulator can reduce instantaneously, and the amplitude of reduction is relevant with the performance of accumulator; Usually, when accumulator carries out electric discharge event, voltage instantaneous reduces 3-4 volt left and right, and the difference of the voltage before voltage when namely described battery discharging event starts and electric discharge event start is about 3-4 lies prostrate; After reducing, the voltage of accumulator has rise by a small margin, slowly declines subsequently; And accumulator is when carrying out electric discharge event, the electric current of accumulator can from the occasion of reducing to negative value instantaneously, and in the whole discharge process of accumulator, the electric current of accumulator is negative value.Therefore, step 102 has used the feature of battery discharging event, determines the starting point of battery discharging event.
Further, described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1, at voltage V corresponding to described first moment
t, at voltage V corresponding to the subsequent time in described first moment
t+1and at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2the voltage that difference between middle voltage meets electric discharge event corresponding is pre-conditioned, comprising:
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the first predetermined threshold value; Or,
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to the subsequent time in described first moment
t+1difference be more than or equal to the first predetermined threshold value; Or,
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to the subsequent time in described first moment
t+1difference be greater than the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t+1with described accumulator at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2difference be more than or equal to the first predetermined threshold value, and described accumulator is at voltage V corresponding to the subsequent time in described first moment
t+1with described accumulator at voltage V corresponding to described first moment
tdifference be less than the second predetermined threshold value.
Here, pre-conditioned and the first electric current predetermined threshold value of described voltage specifically can be arranged according to factors such as the working environments of the performance of accumulator own and accumulator.
Such as, described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1, at voltage V corresponding to described first moment
t, at voltage V corresponding to the subsequent time in described first moment
t+1and at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2the voltage that difference between middle voltage meets electric discharge event corresponding is pre-conditioned, and the difference wherein between voltage meets one in following three conditions, and three conditions specifically comprise: V
t-1-V
t>=1.8; 0.5≤V
t-1-V
t<1.8 and V
t-1-V
t+1>=1.8; 0.5≤V
t-1-V
t<1.8 and 0.5<V
t-1-V
t+1<1.8 and V
t-1-V
t+2>=1.8 and V
t+1-V
t<0.5;
Here, V
t-1corresponding moment and V
tthe time interval in corresponding described first moment, V
t+1corresponding moment and V
tthe time interval in corresponding described first moment and V
t+1corresponding moment and V
t+2the corresponding moment all can be arranged according to factors such as the working environments of the performance of accumulator and accumulator.
At least one electric battery in described accumulator is less than the first electric current predetermined threshold value corresponding to electric discharge event at the electric current that described first moment is corresponding, can be specially:
At least one electric battery in described accumulator, in the electric current I that described first moment is corresponding
tmeet: I
t<-1.
Step 103: when described second moment meets any two kinds in following three kinds of conditions, determines that described second moment is the terminal of described battery discharging event; Wherein, described three kinds of conditions are respectively:
Described accumulator is at voltage V corresponding to the subsequent time in described second moment
p+1, with at voltage V corresponding to described second moment
pdifference meet voltage predetermined threshold value corresponding to electric discharge event; All electric battery in described accumulator are all greater than the second electric current predetermined threshold value corresponding to electric discharge event at the electric current that described second moment is corresponding; Determine that described second moment is the terminal of described battery discharging event by switching value;
Here, described voltage predetermined threshold value and the second electric current predetermined threshold value specifically can be arranged according to factors such as the working environments of the performance of accumulator own and accumulator.
Such as, described accumulator is at voltage V corresponding to the subsequent time in described second moment
p+1, with at voltage V corresponding to described second moment
pdifference meet voltage predetermined threshold value corresponding to electric discharge event, can be specially: V
p+1-V
p>=0.5;
Wherein, described V
p+1represent that described accumulator is at voltage corresponding to the subsequent time in described second moment; Described V
p+1corresponding moment and V
ptime interval in corresponding described second moment can be arranged according to factors such as the working environments of the performance of accumulator and accumulator.
Particularly, all electric battery in described accumulator are all greater than the second electric current predetermined threshold value corresponding to electric discharge event at the electric current that described second moment is corresponding, can be specially:
Any one electric battery in described accumulator, in the electric current I that described second moment is corresponding
pall satisfied: I
p>1.
Here, the positive and negative values of electric current represents sense of current, such as, when electric current be on the occasion of time, represent accumulator be in charged state; When electric current is negative value, represent that accumulator is in discharge condition.
Step 104: using the starting point of the terminal of described battery discharging event as described charge in batteries event;
Step 105: the floating charge value determining described accumulator, determines the terminal of described charge in batteries event according to described floating charge value.
Further, the described floating charge value determining described accumulator, determine the terminal of described charge in batteries event according to described floating charge value, comprising:
When carrying out charged state, current value when all electric battery of described accumulator being in same current value is as the floating charge value of described accumulator;
According to described floating charge value determination floating charge threshold value;
Moment corresponding when the electric current of all electric battery in described accumulator being all less than floating charge threshold value is as the terminal of described charge in batteries event.
Particularly, when carrying out charge event, using all electric battery in accumulator at the electric current homogeneous phase current value simultaneously in n moment as the floating charge value of described accumulator; And the floating charge threshold value of described accumulator is determined according to described floating charge value, such as floating charge threshold value is the current value obtained after described floating charge value adds 2A,
Moment corresponding when the electric current of all electric battery in described accumulator being all less than first described floating charge threshold value is as the terminal of described charge in batteries event.
Further, described method also comprises:
The charge value that described accumulator is released is determined according to the starting point of described battery discharging event and the terminal of electric discharge event;
The charge value that described accumulator is filled with is determined according to the described starting point of charge in batteries event and the terminal of charge event;
The ratio of the charge value that the charge value be filled with according to described accumulator and described accumulator are released determines the state of described accumulator.
Particularly, according to the starting point of described battery discharging event and the terminal of electric discharge event, in time period between the starting point of described battery discharging event and the terminal of electric discharge event, gather the electric current that battery discharging event is corresponding, the time interval that front and back gather electric current for twice can be arranged arbitrarily, such as, set interval as any time period in 1-5 minute, then the charge value C of described accumulator releasing
outfor:
Wherein, described I
ifor the current value that the i-th moment in the time period between the starting point of described battery discharging event and the terminal of electric discharge event collects; Described T
iit is the time interval in the i-th moment and the i-th-1 moment; N acquires n primary current in the time period between the starting point of described battery discharging event and the terminal of electric discharge event altogether; Because when accumulator carries out electric discharge event, electric current is negative value, therefore, the charge value C that the described accumulator calculated is released
outfor negative value.
In like manner, according to the described starting point of charge in batteries event and the terminal of charge event, in time period between the starting point of described charge in batteries event and the terminal of charge event, gather the electric current that charge in batteries event is corresponding, the time interval that front and back gather electric current for twice can be arranged arbitrarily, such as, set interval as any time period in 1-5 minute, then the charge value C that is filled with of described accumulator
infor:
Wherein, described I
lfor the current value that the l moment in the time period between the starting point of described charge in batteries event and the terminal of charge event collects; Described T
lit is the time interval in l moment and l-1 moment; N acquires n primary current in the time period between the starting point of described charge in batteries event and the terminal of charge event altogether; Due to when accumulator carries out charge event electric current on the occasion of, therefore, the charge value C that the described accumulator calculated is filled with
infor on the occasion of.
Here, described C
outfor negative value, and described C
infor on the occasion of, during owing to determining the state of accumulator, that only need determine accumulator is filled with electric current and the ratio of releasing electricity, has nothing to do, therefore, determine C with direction of current
outwith C
inratio be and determine C
outwith C
inthe absolute value of ratio.
Accordingly, the ratio of the charge value that the described charge value that is filled with according to described accumulator and described accumulator are released is determined specifically to comprise the state of described accumulator:
Determine that the absolute value Q of the ratio of the charge value that described accumulator is filled with and the charge value that described accumulator is released is:
Further, first threshold a and Second Threshold b is set, wherein said a<b; If described Q<a, then determine that described accumulator is in charging unsaturation state; If a≤Q≤b, then determine that described accumulator is in charging state of saturation; If Q>b, then described accumulator is in overshoot state.
Therefore, according to the state of described accumulator, adjust the starting point of the described starting point of charge in batteries event and the terminal of charge event and described battery discharging event and the terminal of electric discharge event, until, till the described Q value determined according to the starting point of the described starting point of charge in batteries event and the terminal of charge event and described battery discharging event and the terminal of electric discharge event meets a≤Q≤b;
Actual should in process, according to determine, the starting point of the described starting point of charge in batteries event and the terminal of charge event and described battery discharging event and the state of terminal determination accumulator of electric discharge event accurately, therefore, can lay the foundation for improving the judgement of maintainer to accumulator property, farthest can extend the serviceable life of accumulator, economize on resources, reduce costs.
The embodiment of the present invention additionally provides a kind of determining device corresponding to the battery condition of said method, and as shown in Figure 2, described device comprises:
Collecting unit 21, for determining that described accumulator is at the first moment and voltage corresponding to the second moment respectively, determine that each electric battery in described accumulator is at described first moment and electric current corresponding to the second moment, and determined that described accumulator was at voltage corresponding to a upper moment in described first moment, at voltage corresponding to the subsequent time in described first moment, at voltage corresponding to the subsequent time of the subsequent time in described first moment and at voltage corresponding to the subsequent time in described second moment;
First determining unit 22, during for meeting any two kinds in following three kinds of conditions in described first moment, determines that described first moment is the starting point of described battery discharging event; Wherein, described three kinds of conditions are respectively:
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1, at voltage V corresponding to described first moment
t, at voltage V corresponding to the subsequent time in described first moment
t+1and at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2the voltage that difference between middle voltage meets electric discharge event corresponding is pre-conditioned; At least one electric battery in described accumulator is less than the first electric current predetermined threshold value corresponding to electric discharge event at the electric current that described first moment is corresponding; Determine that described first moment is the starting point of described battery discharging event by switching value;
Second determining unit 23, during for meeting any two kinds in following three kinds of conditions in described second moment, determines that described second moment is the terminal of described battery discharging event; Wherein, described three kinds of conditions are respectively:
Described accumulator is at voltage V corresponding to the subsequent time in described second moment
p+1, with at voltage V corresponding to described second moment
pdifference meet voltage predetermined threshold value corresponding to electric discharge event; All electric battery in described accumulator are all greater than the second electric current predetermined threshold value corresponding to electric discharge event at the electric current that described second moment is corresponding; Determine that described second moment is the terminal of described battery discharging event by switching value;
3rd determining unit 24, for using the starting point of the terminal of described battery discharging event as described charge in batteries event;
4th determining unit 25, for determining the floating charge value of described accumulator, determines the terminal of described charge in batteries event according to described floating charge value.
Further, described device also comprises:
First electricity computing unit 26, for determining according to the starting point of described battery discharging event and the terminal of electric discharge event the charge value that described accumulator is released;
Second electricity computing unit 27, for determining according to the described starting point of charge in batteries event and the terminal of charge event the charge value that described accumulator is filled with;
Status determining unit 28, the ratio of the charge value of releasing for the charge value that is filled with according to described accumulator and described accumulator determines the state of described accumulator.
Further, described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1, at voltage V corresponding to described first moment
t, at voltage V corresponding to the subsequent time in described first moment
t+1and at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2the voltage that difference between middle voltage meets electric discharge event corresponding is pre-conditioned, comprising:
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the first predetermined threshold value; Or,
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to the subsequent time in described first moment
t+1difference be more than or equal to the first predetermined threshold value; Or,
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to the subsequent time in described first moment
t+1difference be greater than the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t+1with described accumulator at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2difference be more than or equal to the first predetermined threshold value, and described accumulator is at voltage V corresponding to the subsequent time in described first moment
t+1with described accumulator at voltage V corresponding to described first moment
tdifference be less than the second predetermined threshold value.
Further, as shown in Figure 3, described 4th determining unit 25 also comprises:
Floating charge value determination subelement 251, for when carrying out charged state, current value when all electric battery of described accumulator being in same current value is as the floating charge value of described accumulator;
Floating charge threshold value determination subelement 252, for according to described floating charge value determination floating charge threshold value;
Terminal determination subelement 253, the moment corresponding during for the electric current of all electric battery in described accumulator being all less than floating charge threshold value is as the terminal of described charge in batteries event.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (8)
1. a defining method for battery condition, is characterized in that, described accumulator comprises: at least two electric battery; Described method comprises:
Determine that described accumulator is at the first moment and voltage corresponding to the second moment respectively, determine that each electric battery in described accumulator is at described first moment and electric current corresponding to the second moment, and determined that described accumulator was at voltage corresponding to a upper moment in described first moment, at voltage corresponding to the subsequent time in described first moment, at voltage corresponding to the subsequent time of the subsequent time in described first moment and at voltage corresponding to the subsequent time in described second moment;
Described first moment is when meeting any two kinds in following three kinds of conditions, determines that described first moment is the starting point of described battery discharging event; Wherein, described three kinds of conditions are respectively: described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1, at voltage V corresponding to described first moment
t, at voltage V corresponding to the subsequent time in described first moment
t+1and at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2the voltage that difference between middle voltage meets electric discharge event corresponding is pre-conditioned; At least one electric battery in described accumulator is less than the first electric current predetermined threshold value corresponding to electric discharge event at the electric current that described first moment is corresponding; Determine that described first moment is the starting point of described battery discharging event by switching value;
Described second moment is when meeting any two kinds in following three kinds of conditions, determines that described second moment is the terminal of described battery discharging event; Wherein, described three kinds of conditions are respectively: described accumulator is at voltage V corresponding to the subsequent time in described second moment
p+1, with at voltage V corresponding to described second moment
pdifference meet voltage predetermined threshold value corresponding to electric discharge event; All electric battery in described accumulator are all greater than the second electric current predetermined threshold value corresponding to electric discharge event at the electric current that described second moment is corresponding; Determine that described second moment is the terminal of described battery discharging event by switching value;
Using the starting point of the terminal of described battery discharging event as described charge in batteries event;
Determine the floating charge value of described accumulator, determine the terminal of described charge in batteries event according to described floating charge value.
2. method according to claim 1, is characterized in that, described method also comprises:
The charge value that described accumulator is released is determined according to the starting point of described battery discharging event and the terminal of electric discharge event;
The charge value that described accumulator is filled with is determined according to the described starting point of charge in batteries event and the terminal of charge event;
The ratio of the charge value that the charge value be filled with according to described accumulator and described accumulator are released determines the state of described accumulator.
3. method according to claim 1 and 2, is characterized in that, described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1, at voltage V corresponding to described first moment
t, at voltage V corresponding to the subsequent time in described first moment
t+1and at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2the voltage that difference between middle voltage meets electric discharge event corresponding is pre-conditioned, comprising:
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the first predetermined threshold value; Or,
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to the subsequent time in described first moment
t+1difference be more than or equal to the first predetermined threshold value; Or,
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to the subsequent time in described first moment
t+1difference be greater than the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t+1with described accumulator at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2difference be more than or equal to the first predetermined threshold value, and described accumulator is at voltage V corresponding to the subsequent time in described first moment
t+1with described accumulator at voltage V corresponding to described first moment
tdifference be less than the second predetermined threshold value.
4. method according to claim 1 and 2, is characterized in that, the described floating charge value determining described accumulator, determines the terminal of described charge in batteries event, comprising according to described floating charge value:
When carrying out charged state, current value when all electric battery of described accumulator being in same current value is as the floating charge value of described accumulator;
According to described floating charge value determination floating charge threshold value;
Moment corresponding when the electric current of all electric battery in described accumulator being all less than floating charge threshold value is as the terminal of described charge in batteries event.
5. a determining device for battery condition, is characterized in that, described accumulator comprises: at least two electric battery; Described device comprises:
Collecting unit, for determining that described accumulator is at the first moment and voltage corresponding to the second moment respectively, determine that each electric battery in described accumulator is at described first moment and electric current corresponding to the second moment, and determined that described accumulator was at voltage corresponding to a upper moment in described first moment, at voltage corresponding to the subsequent time in described first moment, at voltage corresponding to the subsequent time of the subsequent time in described first moment and at voltage corresponding to the subsequent time in described second moment;
First determining unit, during for meeting any two kinds in following three kinds of conditions in described first moment, determines that described first moment is the starting point of described battery discharging event; Wherein, described three kinds of conditions are respectively:
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1, at voltage V corresponding to described first moment
t, at voltage V corresponding to the subsequent time in described first moment
t+1and at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2the voltage that difference between middle voltage meets electric discharge event corresponding is pre-conditioned; At least one electric battery in described accumulator is less than the first electric current predetermined threshold value corresponding to electric discharge event at the electric current that described first moment is corresponding; Determine that described first moment is the starting point of described battery discharging event by switching value;
Second determining unit, during for meeting any two kinds in following three kinds of conditions in described second moment, determines that described second moment is the terminal of described battery discharging event; Wherein, described three kinds of conditions are respectively:
Described accumulator is at voltage V corresponding to the subsequent time in described second moment
p+1, with at voltage V corresponding to described second moment
pdifference meet voltage predetermined threshold value corresponding to electric discharge event; All electric battery in described accumulator are all greater than the second electric current predetermined threshold value corresponding to electric discharge event at the electric current that described second moment is corresponding; Determine that described second moment is the terminal of described battery discharging event by switching value;
3rd determining unit, for using the starting point of the terminal of described battery discharging event as described charge in batteries event;
4th determining unit, for determining the floating charge value of described accumulator, determines the terminal of described charge in batteries event according to described floating charge value.
6. device according to claim 5, is characterized in that, described device also comprises:
First electricity computing unit, for determining according to the starting point of described battery discharging event and the terminal of electric discharge event the charge value that described accumulator is released;
Second electricity computing unit, for determining according to the described starting point of charge in batteries event and the terminal of charge event the charge value that described accumulator is filled with;
Status determining unit, the ratio of the charge value of releasing for the charge value that is filled with according to described accumulator and described accumulator determines the state of described accumulator.
7. the device according to claim 5 or 6, is characterized in that, described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1, at voltage V corresponding to described first moment
t, at voltage V corresponding to the subsequent time in described first moment
t+1and at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2the voltage that difference between middle voltage meets electric discharge event corresponding is pre-conditioned, comprising:
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the first predetermined threshold value; Or,
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to the subsequent time in described first moment
t+1difference be more than or equal to the first predetermined threshold value; Or,
Described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to described first moment
tdifference be more than or equal to the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t-1with described accumulator at voltage V corresponding to the subsequent time in described first moment
t+1difference be greater than the second predetermined threshold value, be less than the first predetermined threshold value, and described accumulator is at voltage V corresponding to a upper moment in described first moment
t+1with described accumulator at voltage V corresponding to the subsequent time of the subsequent time in described first moment
t+2difference be more than or equal to the first predetermined threshold value, and described accumulator is at voltage V corresponding to the subsequent time in described first moment
t+1with described accumulator at voltage V corresponding to described first moment
tdifference be less than the second predetermined threshold value.
8. the device according to claim 5 or 6, is characterized in that, described 4th determining unit also comprises:
Floating charge value determination subelement, for when carrying out charged state, current value when all electric battery of described accumulator being in same current value is as the floating charge value of described accumulator;
Floating charge threshold value determination subelement, for according to described floating charge value determination floating charge threshold value;
Terminal determination subelement, the moment corresponding during for the electric current of all electric battery in described accumulator being all less than floating charge threshold value is as the terminal of described charge in batteries event.
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