CN103863312B - A kind of combination drive transmission control method based on oil pressure - Google Patents
A kind of combination drive transmission control method based on oil pressure Download PDFInfo
- Publication number
- CN103863312B CN103863312B CN201210547045.1A CN201210547045A CN103863312B CN 103863312 B CN103863312 B CN 103863312B CN 201210547045 A CN201210547045 A CN 201210547045A CN 103863312 B CN103863312 B CN 103863312B
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- Prior art keywords
- oil pressure
- gearshift
- pattern switching
- allow
- oil
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
- B60W10/101—Infinitely variable gearings
- B60W10/103—Infinitely variable gearings of fluid type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/10—Change speed gearings
- B60W2510/1075—Change speed gearings fluid pressure, e.g. oil pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/10—Change speed gearings
- B60W2710/1005—Transmission ratio engaged
Abstract
The present invention relates to a kind of combination drive transmission control method; the step of methods described includes changing the running status of combination drive gearbox; wherein; when the electric oil pump of the hydraulic control system of combination drive gearbox is in guard mode, first judge whether the oil pressure in the working connection of hydraulic control system possesses corresponding ability before the running status of combination drive gearbox is changed.It can ensure that the control when oil pump is protected to gearbox smoothly completes according to control method of the present invention, ensure the normally travel of vehicle.
Description
Technical field
The present invention relates to a kind of combination drive transmission control method；Specifically, the present invention relates to one kind to be based on oil pressure
Combination drive transmission control method.
Background technology
In the automobile of traditional power, auto-manual（AMT）The mechanical oil pump of formula mechanical gear box is typically by engine
Dragging.In normal driving process, engine rotates always so oil pump is also to work always, there is usually no oil pressure not
The state of foot.
However, not always using engine dragging gearbox, the engine in running car in hybrid vehicle
Also do not run often, so employing automatically controlled oil pump.Automatically controlled oil pump is not continued for constantly in hybrid vehicle
Work.In fact, the work of automatically controlled oil pump is by current oil pressure, operation of oil pump time, the load for driving Oil pump electrical machinery, temperature
Determined etc. factor, when automatically controlled operation of oil pump needs to be protected after for a period of time, automatically controlled oil pump is idle.Therefore
Automatically controlled oil pump is not always able to timely respond to shift gears or switch oil pressure required during drive pattern.
Gear shift or switching drive pattern are carried out when automatically controlled oil pump is protected, if oil pressure is insufficient, synchronizer can be caused to move
Time lengthening or clutch are opened slowly, moreover, clutch pressure deficiency can not also transmit enough power, this can cause to shift gears
The skidding of time lengthening or clutch, influence the normally travel of automobile.
The content of the invention
The technical problem to be solved in the present invention is to provide it is a kind of when oil pump is protected to the effective of combination drive gearbox
Control method.
In order to solve the above-mentioned technical problem, the invention provides a kind of combination drive transmission control method, methods described
Including change combination drive gearbox running status the step of, it is characterised in that when the hydraulic control of combination drive gearbox
When the electric oil pump of system is in guard mode, hydraulic control system is first judged before the running status of combination drive gearbox is changed
Whether the oil pressure in the working connection of system possesses corresponding ability.
Alternatively, in method as described before, when the electric oil pump of the hydraulic control system of combination drive gearbox is not located
When guard mode, in the working connection of hydraulic control system is also first judged before changing the running status of combination drive gearbox
Oil pressure whether possess corresponding ability.
Alternatively, in method as described before, whether the oil pressure in the working connection for judging hydraulic control system has
The step of standby corresponding ability, includes first determining whether that Full Vehicle System state whether during first powering on, if it is works as master
The oil pressure of oil circuit allows to allow to control the dynamic of synchronizer or clutch during the operating oil pressure of gearshift or pattern switching when being more than upper electric
Make.
Alternatively, in method as described before, it is logical that the operating oil pressure of gearshift or pattern switching is allowed when described electric
Cross what demarcation obtained.
Alternatively, in method as described before, it is described change combination drive gearbox running status the step of include
The step of gearshift, then：
Allow to be shifted gears when the hydraulic pressure in working connection is more than the oil pressure for allowing gearshift, if oil pressure in shift process
Decline but also greater than allow the oil pressure hysteresis value for continuing gearshift then to continue to allow to shift gears, allow to continue if oil pressure drops below
Gearshift has not been completed during the oil pressure hysteresis value of gearshift, then enters gearshift abnormality processing；
When the hydraulic pressure in working connection is less than electricity oil pump start-up operation, working connection when allowing pattern switching and gearshift safe oil pressure
In oil pressure still forbid shifting gears when rising above the oil pressure hysteresis value for allowing to continue gearshift, until oil pressure continuously rises to allow
Just allow to shift gears during the oil pressure of gearshift.
Alternatively, in method as described before, the gearshift abnormality processing includes the output torque of limitation power source.
Alternatively, in method as described before, the oil pressure for allowing gearshift and/or the oil for allowing to continue gearshift
Pressure hysteresis value is obtained by demarcating.
Alternatively, in method as described before, it is described change combination drive gearbox running status the step of include
The step of switching drive pattern, then：
Allow to carry out pattern switching when the oil pressure of working connection is more than the oil pressure for allowing pattern switching, in mode handover procedure
In if the oil pressure of working connection decline but also greater than allow pattern switching and the safe oil pressure of gearshift if continue to allow pattern switching, such as
Fruit oil pressure drops below pattern switching when allowing pattern switching and gearshift safe oil pressure and had not been completed, then Dietary behavior switches
Abnormality processing；
When the oil pressure of working connection is less than permission pattern switching and gearshift safe oil pressure, electricity oil pump is started working, in working connection
Oil pressure rise above allow pattern switching and shift gears safe oil pressure when still prohibited mode switch, until oil pressure continuously rises to
Allow just to allow pattern switching during the oil pressure of pattern switching.
Alternatively, in method as described before, the pattern switching abnormality processing includes the power output of limitation power source
Square.
Alternatively, in method as described before, the oil pressure for allowing pattern switching and the pattern switching and gearshift
Safe oil pressure is obtained by demarcating.
Alternatively, in method as described before, the demarcation refers to that test changes the mixing under every kind of oil temperature
The oil pressure needed for the corresponding running status of gearbox is driven, and adds certain surplus.
By explanation as above as can be seen that according to the combination drive transmission control method of the present invention being protected in oil pump
According to oil pressure current in oil circuit and control the demand of oil pressure is come before state change control is carried out to gearbox during shield true
Determine whether system performs the control, so as to ensure smoothly completing for various control process, and protect corresponding speed change case portion
Damage caused by part fails from control, ensure the normally travel of vehicle.
Brief description of the drawings
Referring to the drawings, the disclosure will be apparent.It is to be appreciated that the mesh that these accompanying drawings are merely illustrative
, and it is not intended to limit protection scope of the present invention.In figure：
Fig. 1 is a kind of combination drive gearbox and its schematic diagram of circumferential component.
Embodiment
The embodiment of the present invention is explained with reference to the accompanying drawings.
Fig. 1 is a kind of combination drive gearbox and its schematic diagram of circumferential component, below mainly in combination with this gearbox pair
It is described according to the control method of the present invention.In Fig. 1, reference 1 represents engine, and 2 represent TM motors, and 3 represent ISG electricity
Machine, 4 represent first clutch, and 5 represent second clutch, and 6 represent synchronizer, and 7 represent first gear group, and 8 represent second gear
Group, 9 represent output gear.
From figure 1 it appears that the gearbox of diagram can provide gear transmission, two gear transmissions and reverse gear.Specifically,
When first clutch 4 is closed, second clutch 5 is opened, automobile is driven by engine 1 or engine 1 and ISG motors 3 are common
Driving, realize that a gear is driven in 6 engaging first gear group 7 of synchronizer, two are realized when synchronizer 6 engages second gear group 8
Gear transmission；Open in first clutch 4, when second clutch 5 closes, automobile is driven by TM motors 2, in the engagement of synchronizer 6 the
Realize that a gear is driven during one gear train 7, realize that two gears are driven when synchronizer 6 engages second gear group 8, when TM motors 2 invert
Realization is reversed gear.The output of gearbox passes through differential mechanism by output gear 9（It is not shown）It is transferred to each wheel end.
Those skilled in the art will be seen that, be needed in time, promptly when carrying out gear shift or switching drive pattern
Synchronizer and/or clutch are controlled, very high is required to the oil pressure in oil hydraulic circuit, so, in the liquid of combination drive gearbox
When the electric oil pump of pressure control system is in guard mode, it is suitable for according to the demand of current oil pressure and oil pressure to determine whether to hold
Row gearshift or the request of pattern switching, so as to ensure that gearshift and pattern switching are smoothed out.In a more preferred case, when mixed
When the electric oil pump of the hydraulic control system of conjunction driving gearbox is not in guard mode, it is method of the invention can also be taken
The running status for changing gearbox provides safeguard.Herein it may also be noted that being related to other needs of electrically driven speed change case
The method according to the invention can also be used during the State Transferring of oil pressure, hydraulic control system is first judged before being actually controlled
Whether the oil pressure in system possesses corresponding ability.
Although it is further to note that retouched in this specification using the combination drive gearbox of diagram as example
State, but it will be appreciated that being applied to the control of all similar automobile gearbox systems according to the control method of the present invention, i.e.
Disclosure in these descriptions and accompanying drawing is exemplary, nonrestrictive, and those of skill in the art can pass through these contents
Understand the principle and some embodiments of the present invention.
Instruction request gearshift or pattern are sent according to the combination drive transmission control method of the present invention, such as in driver
During switching, control system can according to the current oil pressure of working connection and the demand of oil pressure come ruling whether perform above-mentioned request so as to
Guarantee gearshift is smoothed out with pattern switching.If current oil pressure situation be adapted to oil pressure demand, can start and after
The progress of continuous control；If the situation of current oil pressure changes and is no longer appropriate for the demand of oil pressure, do not start or do not continue to control
Progress, in order to avoid damaging gearbox due to control failure, or even accident occurs and influences the occupant in automobile.
The present invention combination drive transmission control method in introduce following concept, i.e. allow gearshift oil pressure,
Allow to continue the oil pressure hysteresis value of gear shift, allow the oil pressure of pattern switching, allow pattern switching and bias shift plunger oil pressure and upper electricity
When allow the operating oil pressure of gear shift or pattern switching.Different shift processes and clutch operating institute in combination drive gearbox
The oil pressure of consumption is different, be will be seen that by demarcation or repeatedly test, under identical oil temperature, foregoing each oil pressure
Value can be sequentially reduced.The specific threshold value of these oil pressure can confirm and verify by demarcating.
Below with the gearshift and pattern switching of combination drive gearbox come illustrate according to the present invention control method it is specific
Embodiment.
First, according to the present invention control method be controlled or change the running status of gearbox before, it is necessary to
Judge the system mode of vehicle whether among process is first powered on.If in the process that first powers on then when working connection pressure
When power is more than " operating oil pressure for allowing gearshift or pattern switching when upper electric ", it is allowed to control the action of synchronizer or clutch.On
Electric process is often referred to hybrid vehicle and plugs key to successful process is started, and has referred specifically to low-voltage electrical apparatus, low pressure controller
For upper low-tension supply, each controller is working properly, and high voltage connector smoothly closes, and high-tension electricity is started working." when upper electric
Allow the operating oil pressure of gear shift or pattern switching " refer to Oil pump electrical machinery and start working to the enough systems of oil pressure that accumulator stores from sky
Shelves are switched to the oil pressure of a gear, and after upper electricity, car is that in such a system, first clutch is normally opened from pure electronic starting
, second clutch is normally closed, without acting clutch, so oil pressure is minimum." allow gear shift or pattern switching when upper electric
The pressure for being identified through testing working connection under different oil temperatures of operating oil pressure " threshold value（Energy storage pressure）It can guarantee that synchronizer
One grade of minimum oil pressure can be moved to by the speed of setting from neutral gear by broadcasting fork, be then further added by certain safe clearance and obtained.
When Hydraulic Main oil circuit pressure is more than " oil pressure for allowing gearshift ", system allows to carry out gear shift, and system control is synchronous
Device（Or clutch and synchronizer）Work.In gearshift procedure if working connection pressure decline, but also greater than " allow after
During the oil pressure hysteresis value of continuous gear shift ", system may proceed to allow gear shift." allow the oil pressure hysteresis for continuing gear shift when oil pressure is less than
Value ", gear shift has not been completed, and system can enter gear shift abnormality processing, such as limits the output torque of power source." allow to shift gears
Oil pressure " the confirmation of demarcation be, for example, if system architecture needs to control clutch and synchronizer two in gearshift
Person, by the pressure that working connection is tested under different oil temperatures（Energy storage pressure）It can guarantee that clutch opening and closing and same
Device is walked by the minimum working connection pressure required for the speed movement of setting, then increases certain safe clearance.So obtain
Oil pressure value under each oil temperature is the oil pressure for being used as allowing gearshift.If the working connection pressure of system less than " allow pattern switching and
Bias shift plunger oil pressure ", then electric oil pump is set to start working, working connection oil pressure rises, but is more than in main oil pressure and " allows to continue gear shift
Forbid gear shift during oil pressure hysteresis value ", it is necessary to when allowing the working connection oil pressure to continuously rise to the oil pressure of gearshift " allow ", just permission
Gear shift.
When Hydraulic Main oil circuit pressure is more than " oil pressure for allowing pattern switching ", system allows to carry out pattern switching, in mould
If working connection pressure declines in formula handoff procedure, but also greater than " allow pattern switching and bias shift plunger oil pressure " when, system meeting
Continue to allow pattern switching.In pattern switching, the action of clutch is simply controlled.When oil pressure less than " allow pattern switching and
Bias shift plunger oil pressure ", pattern switching has not been completed, and system meeting Dietary behavior switching abnormality processing, such as limits the defeated of power source
Go out torque etc..The confirmation of the demarcation of the oil pressure of pattern switching " allow " is：Due to there was only the combination of clutch in pattern switching
Or open, by the pressure that working connection is tested under different oil temperatures（Energy storage pressure）The pressure that clutch is opened is can guarantee that,
Increase certain safe clearance.In this implementation, because the oil mass of pattern switching consumption is less than the oil consumed in shift mode
Amount.I.e. " the oil pressure threshold value for allowing pattern switching " is less than " the oil pressure threshold value for allowing shift mode ".If the working connection pressure of system
When power is less than " allowing pattern switching and bias shift plunger oil pressure ", then main oil pump is started working, and working connection oil pressure rises, and works as main oil pressure
It is that prohibited mode switches during more than " allowing pattern switching and bias shift plunger oil pressure ", it is necessary to allow working connection oil pressure to continuously rise to
When " oil pressure for allowing pattern switching ", just allow pattern switching.When system oil pressure is less than " permission pattern switching and the safety of gearshift
During oil pressure ", forbid being shifted gears and pattern switching." the safe oil pressure for allowing pattern switching and gearshift " is under different oil temperatures
Test the pressure of working connection（Energy storage pressure）It can guarantee that clutch operating and synchronizer are moved to the minimum pressure of neutral gear.
Those skilled in the art will be seen that, employs the method and can guarantee that in the limiting case, as oil pump is frequent
When work or system working connection oil pressure are relatively low, when the operating condition of system request control gearbox（Such as gearshift or pattern switching）
When, whether system can perform above-mentioned request according to oil pressure come ruling, and ensure that the operating condition control allowed after each ruling
It can be smoothed out.By method according to the invention it is possible to realize the conversion of each gear of gearbox, pure electricity can be realized
Driving, pure engine driving and the conversion of combination drive and other various state transformations for needing oil pressure cntrol etc..
As above the embodiment of the present invention is described in detail with reference to the accompanying drawings.Those skilled in the art
Equivalent remodeling or modification can be carried out to specific feature in embodiment according to the above description, certainly, these changes
Embodiment will also fall into the protection domain that claims are covered.
Claims (9)
1. a kind of combination drive transmission control method, methods described includes the step for changing the running status of combination drive gearbox
Suddenly, it is characterised in that when the electric oil pump of the hydraulic control system of combination drive gearbox is in guard mode, mixed changing
Drive whether the oil pressure in the working connection that hydraulic control system is first judged before the running status of gearbox possesses corresponding ability；
When the electric oil pump of the hydraulic control system of combination drive gearbox is not in guard mode, changing combination drive speed change
Also first judge whether the oil pressure in the working connection of hydraulic control system possesses corresponding ability before the running status of case；
Wherein, whether the oil pressure in the working connection for judging hydraulic control system possesses the step of corresponding ability including first
Full Vehicle System state is judged whether during first powering on, and if it is allows to change when the oil pressure of working connection is more than upper electric
Allow the action for controlling synchronizer or clutch when gear or the operating oil pressure of pattern switching.
2. the operating oil pressure for allowing gearshift or pattern switching when the method for claim 1, wherein described electric is to pass through
What demarcation obtained.
3. the method for claim 1, wherein the step of running status of the change combination drive gearbox includes changing
The step of gear, then：
Allow to be shifted gears when the hydraulic pressure in working connection is more than the oil pressure for allowing gearshift, if oil pressure declines in shift process
But the oil pressure hysteresis value for also greater than allowing to continue gearshift then continues to allow to shift gears, and allows to continue to shift gears if oil pressure drops below
Oil pressure hysteresis value when gearshift have not been completed, then enter gearshift abnormality processing；
When the hydraulic pressure in working connection is less than permission pattern switching and gearshift safe oil pressure, electricity oil pump is started working, in working connection
Oil pressure, which rises above, to be allowed to continue still to forbid shifting gears during the oil pressure hysteresis value of gearshift, until oil pressure continuously rises to allow to shift gears
Oil pressure when just allow to shift gears.
4. method as claimed in claim 3, wherein, the gearshift abnormality processing includes the output torque of limitation power source.
5. the method as described in claim 3 or 4, wherein, the oil pressure for allowing gearshift and/or described allow to continue gearshift
Oil pressure hysteresis value is obtained by demarcating.
6. the method for claim 1, wherein the step of running status of the change combination drive gearbox includes cutting
The step of changing drive pattern, then：
Allow to carry out pattern switching when the oil pressure of working connection is more than the oil pressure for allowing pattern switching, in mode handover procedure such as
The oil pressure of fruit working connection declines but also greater than permission pattern switching and the safe oil pressure of gearshift then continues to allow pattern switching, if oily
Pressure falls below pattern switching when allowing pattern switching and gearshift safe oil pressure and had not been completed, then Dietary behavior switching is abnormal
Processing；
When the oil pressure of working connection is less than permission pattern switching and gearshift safe oil pressure, electricity oil pump is started working, the oil in working connection
Pressure rises above still prohibited mode when allowing pattern switching and the safe oil pressure of gearshift and switched, until oil pressure continuously rises to allow
Just allow pattern switching during the oil pressure of pattern switching.
7. method as claimed in claim 6, wherein, the pattern switching abnormality processing includes the power output of limitation power source
Square.
8. method as claimed in claim 7, wherein, the oil pressure for allowing pattern switching and the pattern switching and gearshift peace
Full oil pressure is obtained by demarcating.
9. the method as described in claim 2 or 8, wherein, the demarcation refers to that test changes described mixed under every kind of oil temperature
The oil pressure needed for the corresponding running status of driving gearbox is closed, and adds certain surplus.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210547045.1A CN103863312B (en) | 2012-12-17 | 2012-12-17 | A kind of combination drive transmission control method based on oil pressure |
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|---|---|---|---|
| CN201210547045.1A CN103863312B (en) | 2012-12-17 | 2012-12-17 | A kind of combination drive transmission control method based on oil pressure |
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| Publication Number | Publication Date |
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| CN103863312A CN103863312A (en) | 2014-06-18 |
| CN103863312B true CN103863312B (en) | 2017-11-17 |
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| CN104477165B (en) * | 2014-11-25 | 2017-04-05 | 奇瑞控股有限公司 | A kind of motor vehicle driven by mixed power oil pump control method |
| CN112406516B (en) * | 2019-08-23 | 2021-11-09 | 上海汽车集团股份有限公司 | Hydraulic system control method and device |
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| JP3783716B2 (en) * | 2004-01-22 | 2006-06-07 | トヨタ自動車株式会社 | Control device for hybrid vehicle |
| JP3783714B2 (en) * | 2004-01-22 | 2006-06-07 | トヨタ自動車株式会社 | Control device for hybrid vehicle |
| JP4259491B2 (en) * | 2005-06-01 | 2009-04-30 | トヨタ自動車株式会社 | POWER OUTPUT DEVICE, VEHICLE MOUNTING THE SAME, AND METHOD FOR CONTROLLING POWER OUTPUT DEVICE |
| JP4341626B2 (en) * | 2006-01-24 | 2009-10-07 | トヨタ自動車株式会社 | Vehicle control apparatus and vehicle |
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