CN101298235B - Mode change control system for hybrid vehicle - Google Patents
Mode change control system for hybrid vehicle Download PDFInfo
- Publication number
- CN101298235B CN101298235B CN2008100955591A CN200810095559A CN101298235B CN 101298235 B CN101298235 B CN 101298235B CN 2008100955591 A CN2008100955591 A CN 2008100955591A CN 200810095559 A CN200810095559 A CN 200810095559A CN 101298235 B CN101298235 B CN 101298235B
- Authority
- CN
- China
- Prior art keywords
- pattern
- backward going
- drive pattern
- motorized motions
- condition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Abstract
In a hybrid vehicle in which a mode change between an electric drive mode and a hybrid drive mode is carried out based on information concerning an operating condition and a driving status, an impairment of operability due to a change of the drive mode at a reverse travel of the vehicle is prevented. Upon a start of the reverse travel, the drive mode before the start of the reverse travel is continued at the start of the reverse travel.
Description
Technical field
The present invention relates to a kind of mode change control system that is used for motor vehicle driven by mixed power, this vehicle can change between motorized motions (EV) pattern and combination drive (HEV) pattern.
Background technology
In recent years, proposed and developed various hybrid drive apparatus and system is used for above-mentioned motor vehicle driven by mixed power.A kind of such hybrid drive apparatus or system have openly had in 11-082260 number (hereinafter referred to as JP11-082260) disclosed at Japanese Patent temporarily.In this hybrid drive system, engine rotation is connected to the axle that leads to change-speed box, and motor/generator is installed between driving engine and the change-speed box.In addition, between driving engine and motor/generator, provide the first clutch that can engage and disconnect driving engine and motor/generator.And, between motor/generator and change-speed box, adopted the second clutch that can engage and disconnect the output shaft of motor/generator and change-speed box, replace tor-con.
In having the motor vehicle driven by mixed power of above-mentioned hybrid drive system, discharge and under the situation that second clutch engages, pattern becomes motorized motions (EV) pattern at first clutch, vehicle is only travelled by the power of motor/generator under this pattern.On the other hand, under the situation that first and second power-transfer clutchs all engage, pattern becomes combination drive (HEV) pattern, and vehicle is travelled by the two power of driving engine and motor/generator under this pattern.
As mentioned above, in motor vehicle driven by mixed power, divided motorized motions (EV) mode region and combination drive (HEV) mode region by the combination of the car speed VSP of drafts of chaufeur (accelerator opening APO) and motor vehicle driven by mixed power according to accelerator pedal with motorized motions (EV) pattern and combination drive (HEV) pattern.More particularly, the drafts of accelerator pedal is motorized motions (EV) mode region less than the zone of predetermined value also less than predetermined value and car speed, and the zone outside this zone is combination drive (HEV) mode region.Based on corresponding to these regional control charts, change the common mode of control as pattern, coming the judgment task situation by accelerator opening APO and car speed ASP on this control chart is in motorized motions (EV) mode region or in combination drive (HEV) mode region, then, carrying out pattern between these two zones changes.
Summary of the invention
Instructed the embodiment of the mode change control system that is used for motor vehicle driven by mixed power at this.A kind of such device for example comprises driving engine and controller, this controller is configured to based on the working condition of relevant vehicle and the information of driving condition, between motorized motions pattern and combination drive pattern, select and change, under described motorized motions pattern, only driving engine stops vehicle by the power drive of motor/generator, and under the combination drive pattern, vehicle is at least by the power of driving engine or by the two power drive of driving engine and motor/generator.This controller also is configured to judge drive pattern, thereby continues the drive pattern before backward going begins, and regardless of the information of working condition when backward going begins.
Instructed the method that changes the drive pattern of motor vehicle driven by mixed power at this.A kind of method for example comprises based on the information of the working condition of vehicle and driving condition to be selected between motorized motions pattern and combination drive pattern and changes, wherein under described motorized motions pattern vehicle only driving engine stops by the power drive of motor/generator, and under described combination drive pattern, vehicle is at least by the power drive of driving engine, perhaps by the two power drive of driving engine and motor/generator.Thereby also comprising, this method judges that drive pattern continues the drive pattern of backward going before beginning, and regardless of the information of the working condition when backward going begins.
Description of drawings
Description at this is made with reference to accompanying drawing, identical in the accompanying drawings Reference numeral these a few width of cloth figure get the bid sensible with part, among the figure:
Fig. 1 is the scheme drawing that can use according to the dynamic assembly of the hybrid vehicle of the mode change control system of the embodiment of the invention;
Fig. 2 is the scheme drawing that can use according to the dynamic assembly of another hybrid vehicle of the mode change control system of the embodiment of the invention;
Fig. 3 is the scheme drawing that can use according to the dynamic assembly of the another hybrid vehicle of the mode change control system of the embodiment of the invention;
Fig. 4 is the diagram of block that the control system of the dynamic assembly shown in Fig. 1 to 3 is shown;
Fig. 5 illustrates to be used for selecting the EV drive area of drive pattern and the Zone control figure of HEV drive area to overtake the time;
Fig. 6 is used to judge that to overtake time battery charging state is whether at the Zone control figure of EV drive area;
Fig. 7 is the diagram of circuit that pattern changes control program when backward going begins;
Fig. 8 is the diagram of circuit that the subprogram of the drive pattern judgment part shown in the diagram of circuit of Fig. 7 is shown;
Fig. 9 illustrates the diagram of circuit in the subprogram of EV selection place engine starting judgment part shown in the diagram of circuit of Fig. 7;
Figure 10 illustrates to be used for selecting the EV drive area of drive pattern and the Zone control figure of HEV drive area when backward going; And
Figure 11 is used to judge that under backward going battery charging state is whether at the Zone control figure of EV drive area.
The specific embodiment
In JP11-082260, in the disclosed above-mentioned control system, judge based on the working condition information relevant pattern made from drive condition or state, generally speaking, based on the information relevant with car speed ASP with accelerator opening APO.The judgement of selecting for drive pattern is being based on that identical condition makes forward with in the backward going.
So, in the traditional control system of motor vehicle driven by mixed power, owing to all be based on about the identical condition selection drive pattern of the information cause of service conditions and driving condition forward with in the backward going, so driving engine may start when backward going.In this case, because the vibration of engine starting may be bigger, this might influence the operation of chaufeur in the backward going process, especially, when relate to relatively short apart from the time.In addition, such situation can occur, that is: live engine is flame-out when backward going.In this case, can cause the bad or offending sensation of chaufeur.
On the contrary, carry out the least possible engine starting and driving engine stops at the embodiment of this instruction and the control system that describes with reference to the accompanying drawings, and make the bad luck of chaufeur feel minimum, and do not influence driver's operation.
Fig. 1 illustrates the dynamic assembly that can use according to the motor vehicle driven by mixed power of the F/F 1 of the control system of the embodiment of the invention and back-wheel drive.Automatic transmission with hydraulic torque converter 3 serial on the fore-and-aft direction of vehicle is placed on the back of driving engine 1, and is identical with common rear wheel drive vehicle.Motor/generator 5 is connected with axle 4, and this axle 4 will be delivered to the input shaft 3a of automatic transmission with hydraulic torque converter 3 from the rotation of driving engine 1 (engine crankshaft 1a).
Motor/generator 5 is as motor or as electrical generator, and is placed between driving engine 1 and the automatic transmission with hydraulic torque converter 3.Between this motor/generator 5 and driving engine 1, and further between axle 4 and engine crankshaft 1a, insert or be provided with first clutch 6.This first clutch 6 connects driving engine 1 and motor/generator 5, makes driving engine 1 and motor/generator 5 to separate.At this, first clutch 6 is the power-transfer clutchs that can continuously change the transfer torque ability.For example, first clutch 5 is formed by friction element, and as multi-disc wet clutch, this power-transfer clutch can change the transfer torque ability by proportion of utilization magnet coil continuous control power-transfer clutch fluid flow and/or power-transfer clutch fluid pressure.
Between motor/generator 5 and automatic transmission with hydraulic torque converter 3, and further between axle 4 and input shaft 3a, insert or be provided with second clutch 7.This second clutch 7 connects motor/generator 5 and automatic transmission with hydraulic torque converter 3, so that motor/generator 5 and automatic transmission with hydraulic torque converter 3 can separate.
Automatic transmission with hydraulic torque converter 3 selectivity engage or discharge a plurality of friction elements (power-transfer clutch or drg etc.), and determine driver circuit (velocity stage (speedstage)) by these combinations that engage release movement.Thereby automatic transmission with hydraulic torque converter 3 recently changes rotation from input shaft 3a with the speed change based on selected velocity stage, and this rotation is outputed to output shaft 3b.The rotation of this output is delivered to a left side and off hind wheel 2 respectively by differential gear mechanism 8, is used for the driving of vehicle.But, needless to say be that automatic transmission with hydraulic torque converter 3 is not limited to multi-step transmissions; It also can be the toric transmission (continuously variable transmission) that continuously changes transmitting ratio from current converter speed ratio (velocity stage) to target change gear ratio (velocity stage).
In the dynamic assembly of motor vehicle driven by mixed power shown in Figure 1, under the situation of motorized motions (EV) pattern of using under low load of needs and the low car speed condition, comprise from the halted state to the vehicle launch that first clutch 6 discharges, and second clutch 7 engages.As a result, automatic transmission with hydraulic torque converter 3 is in power delivery status.
When CD-ROM drive motor under this condition/electrical generator 5, only rotate and be passed to input shaft 3a from the output of motor/generator 5.Automatic transmission with hydraulic torque converter 3 changes the rotation of input shaft 3a according to the velocity stage of selecting, and it is passed through transmission output shaft 3b export.After this, be delivered to a left side and off hind wheel 2 from the rotation of transmission output shaft 3b by differential gear mechanism 8, thereby only drive powered vehicle to become possibility by means of EV by motor/generator 5.
Under the situation of the HEV pattern that needs high-speed driving condition or heavy load drive condition to use, first clutch 6 and second clutch 7 all engage.Automatic transmission with hydraulic torque converter 3 is in power delivery status.Under this condition, rotate from the output of driving engine 1, or from driving engine 1 and from motor/generator 5 the two output rotate, be passed to input shaft 3a.Automatic transmission with hydraulic torque converter 3 changes the rotation of input shaft 3a according to the velocity stage of selecting, and by transmission output shaft 3b it is exported.After this, be delivered to a left side and off hind wheel 2 by differential gear mechanism 8, and drive powered vehicle to become possibility by means of HEV by the power that comes from driving engine 1 and motor/generator 5 from the rotation of transmission output shaft 3b.
At driving engine 1 under the situation of starting under the EV pattern, wherein driving engine 1 stops and first clutch 6 discharges and second clutch 7 engages under the EV pattern, and vehicle only travels by the power of motor/generator 5, first clutch 6 engages, and utilize motor/generator 5 as engine starter, carry out engine starting (cranking).After engine starting, pattern is from the change of EV pattern or switch to the HEV pattern, and under the HEV pattern, vehicle travels by the power from driving engine 1 and motor/generator 5.
In the HEV mode process, when being driven under the optimal fuel efficient condition, driving engine 1 exists under the situation of dump energy, and motor/generator 5 is as the electrical generator that utilizes this dump energy.This dump energy is transformed into electric power.Then,, be used for the motor driven of motor/generator 5, can improve the fuel efficiency of driving engine 1 by storing the electric power that this produces.
In Fig. 1, connect motor/generator 5 and drive wheel 2 so that the second clutch 7 that they can separate is inserted between motor/generator 5 and the automatic transmission with hydraulic torque converter 3.But as shown in Figure 2, second clutch 7 also can be inserted between automatic transmission with hydraulic torque converter 3 and the differential gear mechanism 8.In this case, can obtain identical functions and advantage.
In addition, in Fig. 1 and Fig. 2, power-transfer clutch is set especially as second clutch 7 at the input side or the outgoing side of automatic transmission with hydraulic torque converter 3.But as shown in Figure 3, being used to of using in automatic transmission with hydraulic torque converter 3 selected the friction element of gear to overtake or is used to select the friction element of backward going gear can be used as second clutch 7.In this case, second clutch 7 plays the function of model selection, and is identical with the situation of Fig. 1 and Fig. 2.In addition, owing to automatic transmission with hydraulic torque converter 3 is being used for being in the power transmit mode when model selection engages, not needing provides second clutch for power-transfer clutch uses.Owing to do not need special second clutch, this has advantage aspect cost.
The driving engine 1, motor/generator 5, first clutch 6 and the second clutch 7 that form the dynamic assembly of the motor vehicle driven by mixed power shown in Fig. 1 to 3 are controlled by system shown in Figure 4.
The control system of Fig. 4 has integrated manipulator 20, and this controller is controlled operation or operation point (moment of torsion and the speed of revolutions) of dynamic assembly comprehensively.The operating point of dynamic assembly is determined according to the target transfer torque ability tTc1 of target engine torque tTe, target motor/generator moment of torsion tTm, first clutch 6 and the target transfer torque ability tTc2 of second clutch 7.
In order to determine the operating point of dynamic assembly, integrated manipulator 20 inputs are from the signal of the engine speed sensor 11 of detecting engine speed of revolutions Ne, signal from the motor/generator tachogen 12 of surveying motor/generator speed of revolutions Nm, signal from the input speed sensor 13 of surveying gear box input speed of revolutions Ni, signal from the output speed sensor 14 of surveying gearbox output speed of revolutions No, signal from the accel sensor 15 of surveying accelerator pedal drafts (accelerator opening APO), and (promptly from the charge condition (SOC) of monitoring cell 9, available electrical power or charge rate or ratio) the signal of charge condition sensor 16, the required loading condition of wherein said accelerator pedal drafts indication driving engine 1, and 9 storages of described battery are used for the electric power of motor/generator 5.
Integrated manipulator 20 selects to realize the drive pattern (EV pattern or HEV pattern) of the vehicle drive force that chaufeur is required based on accelerator opening APO, battery charging state SOC and gearbox output speed of revolutions No (car speed VSP).In addition, integrated manipulator 20 calculates respectively or estimates target engine torque tTe, target motor/generator moment of torsion tTm, first clutch target transfer torque ability tTc1 and second clutch target transfer torque ability tTc2, and carries out propulsive effort control then.
The target engine torque tTe that is calculated by integrated manipulator 20 is provided or is sent to engine controller 21, and the target motor/generator moment of torsion tTm that is calculated by integrated manipulator 20 is sent to motor/generator controller 22.Engine controller 21 control driving engines 1 make engine torque Te become target engine torque tTe.Motor/generator controller 22 control motor/generators 5 make the torque T m (or motor/generator speed of revolutions Nm) of motor/generator 5 become target motor/generator moment of torsion tTm by battery 9 and inverter 10.
Each controller, as integrated manipulator 20 etc., for example realize that at this this microcomputer also comprises random-access memory (ram), read-only memory (ROM) (ROM) and central processing unit except various input and output connect by corresponding microcomputer.Usually, carrying out the one or more software programs that are stored among the ROM in this description and the controllable function that is associated with each controller by CPU finishes.Certainly, some or all of parts and their relevant functions can realize by nextport hardware component NextPort.Though described three controllers, also can have more or less controller.
At this, change control by integrated manipulator 20 performed EV pattern and the patterns between the HEV pattern with reference to the explanation of the control chart among Fig. 5.In Fig. 5, demonstrate HEV drive area more than or equal to predetermined value or car speed VSP more than or equal to the place of predetermined value at accelerator opening APO, and also demonstrate the EV drive area less than predetermined value and car speed VSP less than the place of predetermined value at accelerator opening APO.HEV drive area and EV drive area are separated by boundary or separation line.Integrated manipulator 20 is the Storage Mapping data in advance, represent as giving an example among Fig. 5, and judge with specific interval whether the accelerator opening APO of input information and gearbox output speed of revolutions No (car speed VSP) are in EV drive area or HEV drive area.When last one formerly judgement and current judgement not simultaneously, change the control of drive pattern.At this, in order to prevent swing (hunting), from the HEV pattern to the EV mode change used separation line with can be different from the EV pattern to the used separation line of HEV mode change.
In addition, integrated manipulator 20 is the Storage Mapping data in advance, as for example expression among Fig. 6, and judge that with specific interval the battery charging state SCO of input information and battery export whether in the EV drive area.When these values are in the EV drive area, select the EV pattern.When these values are not in the EV drive area, do not select the control of EV pattern.At this, battery output is the product of target motor/generator moment of torsion tTm and motor/generator speed of revolutions Nm.Battery output is calculated by integrated manipulator 20.
With respect to the control chart of Fig. 5 and 6, they are used for motor vehicle driven by mixed power to overtake.On the other hand, under the situation of motor vehicle driven by mixed power backward going, the control chart that use is different with the control chart of Fig. 5 and 6, and this control chart is incited somebody to action casehistory below.
When motor vehicle driven by mixed power begins backward going, the control program shown in the diagram of circuit in the execution graph 7, and select correct drive pattern.At first, at step S100, whether select EV pattern or HEV pattern to carry out temporarily (preliminary or interim) to motor vehicle driven by mixed power and judge.
And, when the temporary transient judgement of the EV pattern that makes one's options, the situation that driving engine must start may appear.Thereby at step S200, whether driving engine 1 starts and makes final judgement when selecting the EV pattern.Then, program stops.
Turn back to step S100, the control program of carrying out shown in the diagram of circuit of Fig. 8 is judged drive pattern.At first, at step S101, whether chaufeur shifted gears or change gear-shift lever judges to reverse scope.Do not move at gear-shift lever under the situation of reverse scope (being NO), owing to do not begin backward going, program proceeds to step S105.
At step S105,, be chosen as the drive pattern of selecting to overtake by general control based on the control chart shown in Fig. 5 and 6.Program stops then.
On the other hand, (that is, under situation YES), at step S101, because backward going begins, program proceeds to step S102 to move to reverse scope at gear-shift lever.
At step S102, whether be that the EV pattern judges to the drive pattern of selecting before the reverse scope of shifting gears.Drive pattern before the reverse scope of shifting gears is not that (that is, under situation NO), that is, be under the situation of HEV pattern in pattern, program proceeds to step S107 to the EV pattern.
At step S107, after the reverse scope of shifting gears, continue to select the HEV pattern.Program stops then.
On the other hand, at above-mentioned steps S102, the drive pattern before the reverse scope of shifting gears is that (that is, under situation YES), program proceeds to step S103 to the EV pattern.
At step S103, backward going amount Δ the SOC used or power of battery that consumes is estimated, and monitoring cell charge condition SOC.Integrated manipulator 20 is stored the default value of estimating in advance.Usually, this default value is determined as estimating consumed power amount Δ SOC.In step S104, but the lower limit that whether value that deducts this default value (Δ SOC) from the battery charging state SOC that detects obtained is satisfied allowed band judges then.Thus, can reduce the frequency of engine starting.
At this, replace above-mentioned steps S103, following mode of operation also is possible.The operation history of the accelerator opening (APO) that integrated manipulator 20 driving pupils are made, and be important or large driving force is important judge target drives characteristic or behavior at the improvement of fuel efficiency.Then, integrated manipulator 20 is carried out by the estimated power Δ SOC that calculates the satisfied target drives characteristic of judging and is determined operation.For example, under the improvement of fuel efficiency was important situation, estimated power Δ SOC was set to less than default value.On the contrary, under large driving force was important situation, estimated power Δ SOC was set to greater than default value.In addition, integrated manipulator 20 can be estimated described estimated power Δ SOC more accurately according to the known navigationsystem with geography information.By this way, can further reduce the frequency of engine starting.
In next procedure S104, deduct quantity of power Δ SOC by battery charging state SOC from the battery 9 that detected, calculate battery charging state SOC in the future, be SOC-Δ SOC.Then, but this lower limit that is whether estimating battery charge condition SOC-Δ SOC satisfies the allowed band of battery 9 is judged.But this lower limit of allowed band is the minimum value of battery charging state SOC in the EV drive area shown in Figure 6, and this EV drives the following of available output and is limited to zero.
(that is, under situation YES), program proceeds to step S108 to satisfy the lower limit of usable range at estimating battery charge condition SOC-Δ SOC.
At step S108, temporarily judge, make that motorized motions (EV) pattern continues selected after the reverse scope of shifting gears.This judgement is that the temporary transient reason of judging is that the step S200 that this temporary transient judgement will be discussed below may change.Then, program stops.
On the other hand, at step S104, (that is, under situation NO), program proceeds to step S106 to be lower than the lower limit of usable range at estimating battery charge condition SOC-Δ SOC.
At step S106,1 starting judges to driving engine.Car speed VSP be zero and chaufeur depress the engine starting of the step S205 that carries out this engine starting under the condition of brake pedal and describe below.At next procedure S107, select the HEV pattern.Then, program stops.
Select the EV pattern even temporary transient judgement is reached a conclusion at step S108, also such situation may take place, that is: according to demand and the vehicle-state of chaufeur, improve operability by engine starting to propulsive effort.Thereby, at next procedure S200, to whether selecting the EV pattern or select the HEV pattern to make final judgement.This of the drive pattern of step S200 final judge be to be undertaken by the control program shown in the diagram of circuit of Fig. 9.
At first, the step S201 in the diagram of circuit of Fig. 9 surveys accelerator opening APO, and with reference to all control charts as shown in figure 10, whether accelerator opening APO is judged at the EV drive pattern.This control chart of Figure 10 is the control chart that is used for backward going.In this control chart, it is that car speed VSP is less than or equal to reverse maximum speed and the accelerator opening APO zone less than predetermined accelerator opening APO that the separation line of separating EV drive pattern and HEV drive pattern is set the EV drive area for.Therefore, in Figure 10, accelerator opening APO than the little situation of the separation line shown in the solid line under, select the EV pattern.On the other hand, under the situation of accelerator opening APO, select the HEV pattern more than or equal to this separation line.This separation line is different with the separation line that is used for control chart (Fig. 5) to overtake.For the purpose of contrast, in Figure 10, the separation line that is used for to overtake is shown by dashed lines.As shown in figure 10, the accelerator opening APO of the separation line in backward going (for example 4/8) is greater than the accelerator opening APO of the separation line in to overtake (for example 1/8).
Next explain that the EV drive area can set so big as mentioned above reason for.Under the situation of backward going, to compare with situation to overtake, the continuous operating range and/or the frequency of backward going are less.Thus, less to the influence of fuel efficiency and/or energy management, therefore, the EV drive pattern can be set at bigger.So in backward going, the EV drive area is broadened, and the EV pattern of temporarily determining at step S100 can change as few as possible.As a result, with comparing of being taken place under the condition to overtake, can further reduce the frequency of engine starting.
At this,, be used for to be different from the separation line that changes to the HEV mode from the EV pattern from the separation line that the HEV pattern changes to the EV mode in order to prevent swing.
Preferably, by reading accelerator opening APO and accelerator opening change amount Δ APO, and then they are compared with the value of prejudging, whether chaufeur is expected that propulsive effort judges.
At step S201, judge accelerator opening APO (accelerator opening change amount Δ APO) not in the EV drive area and/or chaufeur need propulsive effort (that is, under situation NO), program proceed to step S206.At this, make final judgement, so that select combination drive (HEV) pattern, and program stops.The change of drive pattern should outmatch operability when the reason of making this judgement was backward going.
On the other hand, be in the EV drive area and chaufeur does not need propulsive effort (that is, under situation YES), program proceeds to step S202 judging accelerator opening APO (accelerator opening change amount Δ APO).
Be not limited in the judgement of step S201 and only read accelerator opening APO and accelerator opening change amount Δ APO.According to the downforce of chaufeur when pressing down brake pedal, geography information that navigationsystem provides or acceleration pick-up etc., can survey road grade or gradient.Then, if road grade more than or equal to predetermined value, will be judged as NO at step S201, and if road grade less than predetermined value, S201 is judged as YES in step.
At step S202, whether output is satisfied predetermined condition and is judged to battery charging state SOC and battery, and this predetermined condition is come casehistory by all control charts as shown in figure 11.The EV that Figure 11 illustrates the employed battery charging state SOC of backward going drives available output.When battery charging state SOC mediates the scope of degree between high level, drive available output according to predetermined EV, can realize backward going.In the scope of low battery charging state SOC, SOC reduces along with battery charging state, and EV drives available output and reduces gradually.In the scope under predetermined battery charge condition SOC, EV drives available output vanishing (forbidding that EV drives).This reason is to consider fuel efficiency/energy management, EV is driven available output limited or retrain.
When battery output drove available output less than the indicated EV of the solid line of Figure 11, vehicle was in the EV drive area of step S202, and satisfies condition (that is, YES).Program proceeds to step S207, in this step, makes final judgement, so that select the EV pattern.Then, the control of Fig. 9 stops.Because formerly step S201 is judged as YES, chaufeur does not need big propulsive effort.Therefore, though under the EV pattern in the backward going process chaufeur further depress accelerator pedal and accelerator opening APO and increase, do not carry out engine starting yet.In this way, the engine starting vibration in the backward going process can be prevented, and the operability of backward going can be improved.
On the other hand, the battery output that drives available output greater than EV do not satisfy step S202 condition (that is, NO).Owing to can not continue to select the EV pattern, so program proceeds to step S203.
At this, drive the EV that available output is different to overtake control chart (Fig. 6) with EV among Figure 11 that step S202 is associated and drive available output.For the purpose of contrast, shown by dashed lines in Figure 11 at EV driving available output to overtake.As shown in figure 11, the EV when backward going drives the EV that available output is set to greater than to overtake the time and drives available output.
The explained later reason that the EV drive area can be bigger as mentioned above.In this embodiment, as describing among step S204 and the S205, when car speed VSP is zero and produces brake operating, driving engine 1 starting.In other words, under the EV pattern during backward going, at motor/generator 5 when trailing wheel 2 provides propulsive effort, motor/5 inoperative driving engines 1.Therefore, motor torsional moment can be used as the propulsive effort of trailing wheel 2, this motor torsional moment should for the engine starting deposit as margin capacity or power.As a result, when backward going, the EV drive area is broadened, and the EV pattern of determining at step S100 can change as few as possible.Can further reduce the engine starting frequency.
At step S202, reducing of SOC for example is Rule of judgment.But except this SOC reduces, the overheated number of times of motor/generator 5 and/or battery 9 and/or inverter 10 can be used as Rule of judgment.When these parts 5,9 and 10 were overheated, program can proceed to step S203, explains as following.
Turn back to the explanation of Fig. 9, at step S203, propulsive effort reduces.This reason is to finish to overtake and realizes shifting gears reverse scope at step S101.In addition, this can be so that chaufeur be noticed reducing of propulsive effort.
Because chaufeur moves to reverse scope with gear-shift lever and will step on brake pedal, at next step S204, when brake pedal is depressed and car speed VSP is that zero (that is, in the time of YES), program proceeds to step S205, and driving engine 1 starting.In this way, can prevent in the process of moving the engine starting vibration, and the operability can improve backward going the time.On the other hand, at step S204, at car speed non-vanishing or brake pedal do not depress (that is, in the time of NO), program turns back to step S203, and propulsive effort continues to reduce, up to car speed VSP become zero and brake pedal be depressed.
When above-mentioned steps S205 carries out engine starting, select the HEV pattern at step S206, and stop the control of Fig. 9.
Summing up the control process of step S100 to S200, is under the situation of step S105 (general control) and step S107 (HEV pattern) in the judgement of step S100, selects drive pattern according to the judgement of step S105 and S107.Judgement at step S100 is under the situation of step S108 (EV pattern), and this judgement is temporary transient judgement, and program further proceeds to step S200.At this, make the final judgement that whether proceeds to step S206 (HEV pattern) or step S207 (EV pattern).
According to this embodiment, this system is configured to, the step S101 that makes at Fig. 8, when gear-shift lever is moved to reverse scope (, YES), program proceeds to step S107 or S108, and keep then or continue to carry out the drive pattern of backward going before beginning, and regardless of as shown in Figure 5 about the information of working condition and driving condition.Thus, be different from conventional situation, can prevent that drive pattern from changing in the backward going process.Therefore, do not need to follow engine starting to carry out control, and do not damage operability with stopping.
But, there is such situation, that is, engine starting outmatches on the operability and suits.According to this embodiment, at the step S103 of Fig. 8, estimate the amount of battery power Δ SOC when backward going, consumed under the EV pattern, and when backward going begins monitoring cell charge volume SOC.At next procedure S104, calculate by deducting the estimating battery charge condition SOC-Δ SOC that estimated amount of battery power Δ SOC obtains.But the following of allowed band that is lower than battery charging state SOC as estimating battery charge condition SOC-Δ SOC prescribed a time limit (promptly, NO), at next procedure S106, engine starting when backward going begins drives even the drive pattern before backward going begins is EV.Therefore can prevent that battery 9 is depleted.
In addition, should outmatch on the operability as engine starting is an example of this situation that suits, step S201 at Fig. 9, based on information, to whether selecting the EV pattern maybe should select the HEV pattern to judge such as accelerator opening when backward going begins and/or accelerator pedal operation amount.When judgement is that (that is, in the time of NO), at step S206, driving engine 1 starting when backward going begins is even be the EV pattern at the drive pattern of step S108 before backward going begins for the HEV pattern.Thereby, can satisfy the demand of chaufeur to propulsive effort.
At this, aspect accelerator opening APO, the EV drive area (Figure 10) of step S201 is configured to the EV drive area (Fig. 5) greater than to overtake.Thus, be different from conventional situation, can prevent that drive pattern changes in the backward going process.
In addition, should outmatch on the operability as engine starting is another example of this situation that suits, in the step S202 of Fig. 9, whether battery charging state SOC and battery output is judged in the EV zone.When judging them,, be reduced to zero gradually at the propulsive effort of step S203 trailing wheel even the drive pattern before backward going begins is the EV pattern not in the EV zone.Then, step S204 when car speed VSP be zero and brake service when being ON, driving engine 1 starting.So, can correctly consider fuel efficiency and energy management.
At this, the EV drive area (Figure 11) of step S202 is configured to the EV drive area (Fig. 6) greater than to overtake.As a result, be different from conventional situation, can prevent that pattern changes in the backward going process.
Describe the foregoing description so that the present invention is understood easily, but do not limited the present invention.On the contrary, the invention is intended to contain the various modifications and the equivalent structure that comprise in the appended claims scope, this scope should be consistent with the wideest explanation, so that contain all modifications and equivalent structure that law allows.
The application requires the preceence of the Japanese patent application submitted on May 2nd, 2007 2007-0121827 number, should first to file by reference integral body be herein incorporated.
Claims (13)
1. the mode change control system of a motor vehicle driven by mixed power, this motor vehicle driven by mixed power comprises driving engine and motor/generator, described control system comprises:
Integrated manipulator, this integrated manipulator is configured to based on about the working condition of described vehicle and the information of driving condition, between motorized motions pattern and combination drive pattern, make one's options and change, wherein, in described motorized motions pattern, described vehicle is only by the power drive of described motor/generator, and described driving engine stops; And in described combination drive pattern, described vehicle is by the power drive of described at least driving engine;
Described packets of information oil scraper door aperture about working condition and driving condition; And
Described vehicle also comprises battery, and this battery is configured to provide power from described motor/generator received power and to described motor/generator;
Described integrated manipulator also is configured to:
The estimation amount that the power of battery consumed under the motorized motions pattern in the backward going process; And
But be lower than at the estimating battery charge condition that the amount that deducts the estimated power of battery by the battery charging state when backward going begins obtains described battery charging state allowed band following in limited time, even the drive pattern before backward going begins is the motorized motions pattern, when beginning, also starts backward going described driving engine;
Wherein, but described integrated manipulator is formed at also that described estimating battery charge condition exceeds described allowed band the following drive pattern of backward going before beginning that continue in limited time.
2. mode change control system as claimed in claim 1, wherein, described integrated manipulator also is configured to:
Maybe should select the combination drive zone of combination drive pattern based on the motorized motions zone of whether pointing out to select the motorized motions pattern about the information of the working condition of described vehicle and driving condition, judge drive pattern to overtake;
Drive pattern based on to overtake the time is temporary transient to be judged and makes the drive pattern that is used for backward going to continue described drive pattern to overtake when backward going begins;
Whether judgement points out to select the motorized motions zone of motorized motions pattern about the information of the working condition of described vehicle and driving condition when backward going begins maybe should select the combination drive zone of combination drive pattern; And
Described information about working condition and driving condition is pointed out to select under the situation in combination drive zone of combination drive pattern when described backward going begins, carry out final judgement, to select the drive pattern of combination drive pattern, even the drive pattern of described temporary transient judgement is the motorized motions pattern as backward going; And
The described motorized motions zone that is used for backward going is greater than the described motorized motions zone that is used for to overtake.
3. mode change control system as claimed in claim 2, wherein:
Described motorized motions zone is described accelerator opening less than the predetermined value of accelerator opening and vehicle speed also less than the zone of the predetermined value of vehicle speed; And
Described combination drive zone is the zone of described accelerator opening more than or equal to the predetermined value of described accelerator opening.
4. mode change control system as claimed in claim 1, wherein, described integrated manipulator also is configured to obtain the battery charging state of described battery.
5. mode change control system as claimed in claim 1, wherein, described information comprises the running condition of the running condition of described battery, described motor/generator and the running condition that connects the circuit of described motor/generator and described battery, and wherein said integrated manipulator also is configured to:
But whether judgement at least one in the described running condition when backward going begins is selected in the allowed band of motorized motions pattern allowing;
Survey the operation of chaufeur to drg; And
But described at least one running condition is not under the situation within the described allowed band when backward going begins, propulsive effort with wheel is reduced to zero gradually, and car speed be zero and described brake service start described driving engine during for ON, even the drive pattern before backward going begins is the motorized motions pattern.
6. mode change control system as claimed in claim 5, wherein, described integrated manipulator also is configured to:
But whether the running condition of judgement to overtake the time is selected in the allowed band of motorized motions pattern allowing; And
Wherein, but but the described allowed band that is used for backward going greater than the described allowed band that is used for to overtake.
7. mode change control system as claimed in claim 1, wherein, described integrated manipulator also is configured to:
Drive pattern before backward going begins is under the situation of combination drive pattern, selects the drive pattern of combination drive pattern as backward going.
8. method that is used to change the drive pattern of motor vehicle driven by mixed power, this method comprises:
Based on the working condition of described vehicle and the information of driving condition, between motorized motions pattern and combination drive pattern, make one's options and change, wherein, in described motorized motions pattern, described vehicle is only by the power drive of described motor/generator, and described driving engine stops; And in described combination drive pattern, described vehicle is by the power drive of described at least driving engine;
Described packets of information oil scraper door aperture about working condition and driving condition; And
The battery of described vehicle is configured to provide power from described motor/generator received power and to described motor/generator;
The estimation amount that the power of battery consumed under the motorized motions pattern in the backward going process; And
But be lower than at the estimating battery charge condition that the amount that deducts the estimated power of battery by the battery charging state when backward going begins obtains described battery charging state allowed band following in limited time, even the drive pattern before backward going begins is the motorized motions pattern, when beginning, also starts backward going described driving engine;
But the following drive pattern of backward going before beginning that continue in limited time that exceeds described allowed band at described estimating battery charge condition.
9. method as claimed in claim 8 also comprises:
Maybe should select the combination drive zone of combination drive pattern based on the motorized motions zone of whether pointing out to select the motorized motions pattern about the information of the working condition of described vehicle and driving condition, judge drive pattern to overtake;
Drive pattern based on to overtake the time is temporary transient to be judged and makes the drive pattern that is used for backward going to continue described drive pattern to overtake when backward going begins;
Whether judgement points out to select the motorized motions zone of motorized motions pattern about the information of the working condition of described vehicle and driving condition when backward going begins maybe should select the combination drive zone of combination drive pattern; And
Described information about working condition and driving condition is pointed out to select under the situation in combination drive zone of combination drive pattern when described backward going begins, carry out final judgement, to select the drive pattern of combination drive pattern, even the drive pattern of described temporary transient judgement is the motorized motions pattern as backward going; And
The described motorized motions zone that is used for backward going is greater than the described motorized motions zone that is used for to overtake.
10. method as claimed in claim 8 also comprises:
Estimate the described battery charging state of described battery.
11. method as claimed in claim 8, wherein, described information comprises the running condition of the running condition of described battery, described motor/generator and the running condition that connects the circuit of described motor/generator and described battery, and described method also comprises:
But whether judgement at least one in the described running condition when backward going begins is selected in the allowed band of motorized motions pattern allowing;
Survey the operation of chaufeur to drg; And
But described at least one running condition is not under the situation within the described allowed band when backward going begins, propulsive effort with wheel is reduced to zero gradually, and car speed be zero and described brake service start described driving engine during for ON, even the drive pattern before backward going begins is the motorized motions pattern.
12. method as claimed in claim 11 also comprises:
But whether the running condition of judgement to overtake the time is selected in the allowed band of motorized motions pattern allowing; And
Wherein, but but the described allowed band that is used for backward going greater than the described allowed band that is used for to overtake.
13. method as claimed in claim 8 also comprises:
Drive pattern before backward going begins is under the situation of combination drive pattern, selects the drive pattern of combination drive pattern as backward going.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP121827/07 | 2007-05-02 | ||
| JP2007121827 | 2007-05-02 | ||
| JP2008054052A JP5181732B2 (en) | 2007-05-02 | 2008-03-04 | Hybrid vehicle mode switching control device |
| JP054052/08 | 2008-03-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101298235A CN101298235A (en) | 2008-11-05 |
| CN101298235B true CN101298235B (en) | 2011-11-09 |
Family
ID=40078242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100955591A Expired - Fee Related CN101298235B (en) | 2007-05-02 | 2008-04-29 | Mode change control system for hybrid vehicle |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5181732B2 (en) |
| CN (1) | CN101298235B (en) |
| DE (1) | DE602008002782D1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102803038B (en) * | 2010-03-31 | 2015-05-20 | 本田技研工业株式会社 | Hybrid vehicle |
| DE102010018753A1 (en) * | 2010-04-29 | 2011-11-03 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | motor vehicle |
| JP2013035441A (en) * | 2011-08-09 | 2013-02-21 | Nissan Motor Co Ltd | Hybrid vehicle control device |
| JP5609898B2 (en) * | 2012-01-26 | 2014-10-22 | トヨタ自動車株式会社 | Travel control device |
| JP2013220663A (en) * | 2012-04-12 | 2013-10-28 | Hino Motors Ltd | Control device of hybrid vehicle, hybrid vehicle, control method for hybrid vehicle, and program |
| CN105730433B (en) * | 2014-12-10 | 2018-08-03 | 北汽福田汽车股份有限公司 | A kind of hybrid electric vehicle mode switching method and system |
| JP6641213B2 (en) * | 2016-03-28 | 2020-02-05 | 株式会社Ｓｕｂａｒｕ | Vehicle control device |
| JP2017178083A (en) * | 2016-03-30 | 2017-10-05 | トヨタ自動車株式会社 | Hybrid motorcar |
| CN105761603A (en) * | 2016-03-30 | 2016-07-13 | 广州城建职业学院 | Teaching operation rack for tandem type hybrid power electric automobile |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19629235A1 (en) * | 1995-07-19 | 1997-01-23 | Aisin Aw Co | Motor vehicle drive unit, e.g. motor car, esp. with internal combustion engine |
| DE19838853A1 (en) * | 1997-08-29 | 1999-03-04 | Aisin Aw Co | Hybrid drive arrangement for vehicle |
| DE10002133A1 (en) * | 1999-01-29 | 2000-08-17 | Mitsubishi Motors Corp | Hybrid vehicle, has engine output shaft which is connected to carrier and transmission input shaft and electric motor output shaft which are connected to ring gear |
| EP1090794A2 (en) * | 1999-10-08 | 2001-04-11 | Toyota Jidosha Kabushiki Kaisha | Apparatus capable of driving hybrid vehicle in reverse direction |
| CN1360545A (en) * | 1999-06-08 | 2002-07-24 | 日产柴油机车工业株式会社 | Hybrid vehicle |
| CN1447757A (en) * | 2000-10-31 | 2003-10-08 | 日产柴油机车工业株式会社 | Hybrid vehicle system |
| DE10316422A1 (en) * | 2002-04-10 | 2003-12-11 | Luk Lamellen & Kupplungsbau | Method of operating a motor vehicle has starter generator between two clutches on the crankshaft and decouples transmission as the starter is activated |
| DE10311270A1 (en) * | 2003-03-14 | 2004-09-23 | Daimlerchrysler Ag | Hybrid drive system for automobile has IC engine disengaged during reversing with drive force provided by electric motor(s) |
| CN1819940A (en) * | 2003-08-12 | 2006-08-16 | 日产柴油机车工业株式会社 | Hybrid drive system of vehicle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3706733B2 (en) * | 1998-03-17 | 2005-10-19 | 本田技研工業株式会社 | Vehicle engine stop control device |
| JP3340672B2 (en) * | 1998-04-28 | 2002-11-05 | 株式会社日立製作所 | Hybrid car |
| JP3715158B2 (en) * | 1999-11-19 | 2005-11-09 | トヨタ自動車株式会社 | Engine stop / start control device |
| JP3585916B1 (en) * | 2003-06-12 | 2004-11-10 | 本田技研工業株式会社 | Power transmission device of hybrid vehicle |
| JP2007099141A (en) * | 2005-10-06 | 2007-04-19 | Nissan Motor Co Ltd | Engine start controller for hybrid vehicle |
-
2008
- 2008-03-04 JP JP2008054052A patent/JP5181732B2/en not_active Expired - Fee Related
- 2008-04-29 CN CN2008100955591A patent/CN101298235B/en not_active Expired - Fee Related
- 2008-05-01 DE DE602008002782T patent/DE602008002782D1/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19629235A1 (en) * | 1995-07-19 | 1997-01-23 | Aisin Aw Co | Motor vehicle drive unit, e.g. motor car, esp. with internal combustion engine |
| US5846155A (en) * | 1995-07-19 | 1998-12-08 | Aisin Aw Co., Ltd. | Vehicular drive unit |
| DE19838853A1 (en) * | 1997-08-29 | 1999-03-04 | Aisin Aw Co | Hybrid drive arrangement for vehicle |
| US6018198A (en) * | 1997-08-29 | 2000-01-25 | Aisin Aw Co., Ltd. | Hybrid drive apparatus for vehicle |
| DE10002133A1 (en) * | 1999-01-29 | 2000-08-17 | Mitsubishi Motors Corp | Hybrid vehicle, has engine output shaft which is connected to carrier and transmission input shaft and electric motor output shaft which are connected to ring gear |
| US6302227B1 (en) * | 1999-01-29 | 2001-10-16 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Hybrid powered vehicle |
| CN1360545A (en) * | 1999-06-08 | 2002-07-24 | 日产柴油机车工业株式会社 | Hybrid vehicle |
| EP1090794A2 (en) * | 1999-10-08 | 2001-04-11 | Toyota Jidosha Kabushiki Kaisha | Apparatus capable of driving hybrid vehicle in reverse direction |
| CN1447757A (en) * | 2000-10-31 | 2003-10-08 | 日产柴油机车工业株式会社 | Hybrid vehicle system |
| DE10316422A1 (en) * | 2002-04-10 | 2003-12-11 | Luk Lamellen & Kupplungsbau | Method of operating a motor vehicle has starter generator between two clutches on the crankshaft and decouples transmission as the starter is activated |
| DE10311270A1 (en) * | 2003-03-14 | 2004-09-23 | Daimlerchrysler Ag | Hybrid drive system for automobile has IC engine disengaged during reversing with drive force provided by electric motor(s) |
| CN1819940A (en) * | 2003-08-12 | 2006-08-16 | 日产柴油机车工业株式会社 | Hybrid drive system of vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008296897A (en) | 2008-12-11 |
| JP5181732B2 (en) | 2013-04-10 |
| CN101298235A (en) | 2008-11-05 |
| DE602008002782D1 (en) | 2010-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101298235B (en) | Mode change control system for hybrid vehicle | |
| US20200247384A1 (en) | System and method for controlling hybrid electric vehicle using driving tendency of driver | |
| EP1987996B1 (en) | Mode change control system for hybrid vehicle | |
| CN101028819B (en) | Engine control device and method for a hybrid electric vehicle | |
| EP1911650B1 (en) | Mode Change Control System for a Hybrid Vehicle | |
| JP5609898B2 (en) | Travel control device | |
| CN102032337B (en) | Oil pump control apparatus for vehicle | |
| EP3575130B1 (en) | Vehicle control system and method of controlling the same, and braking device | |
| CN103429474B (en) | The power transmission controller of vehicle | |
| CN102466035B (en) | Hydraulic control apparatus for vehicle | |
| CN102421652B (en) | Method and device for controlling an automatic freewheeling function in a vehicle | |
| EP1987995A2 (en) | Hybrid vehicle drive control apparatus and method | |
| CN111231688A (en) | Vehicle and method of controlling vehicle | |
| CN101959731A (en) | Control apparatus and method for controlling a hybrid vehicle | |
| CN102556039B (en) | Control of a hybrid vehicle with a manual transmission | |
| CN103237704A (en) | Hybrid vehicle rapid deceleration control device | |
| CN102725163A (en) | Control device | |
| JP5325303B2 (en) | Method and apparatus for selecting a starting gear for a hybrid electric vehicle | |
| JP6551021B2 (en) | Hybrid vehicle and control method thereof | |
| KR20180067838A (en) | Control method for hybrid electric vehicle | |
| US9709167B2 (en) | Shift control method and system for hybrid vehicle | |
| KR20180067837A (en) | Control method for hybrid electric vehicle | |
| JP2016175505A (en) | Hybrid vehicle and control method therefor | |
| CN110745131A (en) | Method for controlling the state of charge of an electric power storage device of a motor-driven vehicle without reverse gear | |
| JP2014097762A (en) | Travel control unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20180429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |