CN106335500B - A kind of control method of Vehicle Accelerating Period, device and hybrid vehicle - Google Patents
A kind of control method of Vehicle Accelerating Period, device and hybrid vehicle Download PDFInfo
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- CN106335500B CN106335500B CN201610877652.2A CN201610877652A CN106335500B CN 106335500 B CN106335500 B CN 106335500B CN 201610877652 A CN201610877652 A CN 201610877652A CN 106335500 B CN106335500 B CN 106335500B
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- 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
- B60W10/11—Stepped gearings
-
- 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
- B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
-
- 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
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- 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
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/30—Control strategies involving selection of transmission gear ratio
-
- 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
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
-
- 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
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
-
- 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
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0638—Engine speed
-
- 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
- B60W2710/02—Clutches
- B60W2710/021—Clutch engagement state
-
- 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
- B60W2710/06—Combustion engines, Gas turbines
-
- 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
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention provides a kind of control method of Vehicle Accelerating Period, device and hybrid vehicle, which includes：Obtain the acceleration demand torque when automobile is in pure motor driving state；If described accelerate max. output torque of the demand torque more than driving motor, engine start is controlled；When reaching the demand rotating speed of the default gear of gearbox in the rotating speed of the engine, control clutch is closed, wherein the default gear is provided the highest gear in gear by the gearbox；Target gear is obtained according to the current vehicle speed of automobile, and when the rotating speed of the engine rises to the demand rotating speed of the target gear, the gear for controlling the gearbox switches to the target gear.The program can maximumlly shorten the response time of engine torque, improve response speed, improve power performance.
Description
Technical field
The present invention relates to a kind of automobile technical field more particularly to control method of Vehicle Accelerating Period, device and mixing
Power vehicle.
Background technology
With the development of society, automobile becomes more and more indispensable trip tool in popular life, wherein with ring
The raising of border protective awareness, fuel-saving environmental protection become the factor that automobile industry must take into consideration, and the development of hybrid vehicle is increasingly
Soon, in the current 4 wheel driven compared with mainstream of hybrid vehicle mixes moving frame structure, engine intelligent start and stop are one of key technologies.
Using above-mentioned framework automobile electric-only mode when driving, when driver's depth stepping on accelerator pedal, then due to motor
The limited torque demand for being insufficient for driver of driving torque needs startup engine to provide the torque of operator demand,
I.e. usually said engine intelligent start and stop.
Since the torque that driving motor provides is limited, when operator demand's torque is larger, rear axle cannot be satisfied driver and need
When seeking torque, vehicle will start engine, usually have torque to export needs from engine from starting to start to gear box output end
Long period, torque responsive speed is slow, reduces automotive quality and cornering ability, driver will obviously feel power in this time
Deficiency, user experience is bad, influences user and purchases vehicle selection, is unfavorable for the popularization and application of energy saving and environment friendly hybrid vehicle.
Invention content
A kind of control method of Vehicle Accelerating Period, device and hybrid vehicle are provided in the embodiment of the present invention, with solution
Certainly torque responsive speed is slow in hybrid vehicle accelerator in the prior art, reduces automotive quality and cornering ability, user
It experiences bad, influences user and purchase vehicle selection, the problem of being unfavorable for the popularization and application of energy saving and environment friendly hybrid vehicle.
In order to solve the above-mentioned technical problem, the embodiment of the present invention adopts the following technical scheme that：
On the one hand, the embodiment of the present invention provides a kind of control method of Vehicle Accelerating Period, is applied to hybrid vehicle,
The hybrid vehicle includes：Preceding axial brake device and back shaft driving device, the preceding axial brake device include engine, become
Fast case and the clutch being set between the engine and the gearbox, the back shaft driving device include driving motor；
The control method includes：
Obtain the acceleration demand torque when automobile is in pure motor driving state；
If described accelerate max. output torque of the demand torque more than driving motor, engine start is controlled；
When reaching the demand rotating speed of the default gear of gearbox in the rotating speed of the engine, control clutch is closed,
In, the default gear is provided the highest gear in gear by the gearbox；
Target gear is obtained according to the current vehicle speed of automobile, and the target gear is risen in the rotating speed of the engine
Demand rotating speed when, the gear for controlling the gearbox switches to the target gear.
Optionally, the step of acceleration demand torque obtained when automobile is in pure motor driving state, including：
Acquire the accelerator pedal aperture when automobile is in pure motor driving state；
According to the accelerator pedal aperture, the acceleration demand torque is obtained.
Optionally, when the rotating speed in the engine rises to the demand rotating speed of the target gear, described in control
The step of gear of gearbox switches to the target gear, including：
When the default gear is identical as the odd even attribute of the target gear, judge the engine rotating speed whether
Rise to the demand rotating speed of the first gear, wherein first gear be between the default gear and the target gear it
Between the different gear of odd even attribute with the default gear；
If so, the gear for controlling the gearbox switches to first gear；
Judge whether the rotating speed of the engine rises to the demand rotating speed of the target gear；
If so, the gear for controlling the gearbox switches to the target gear by first gear.
Optionally, when the rotating speed in the engine rises to the demand rotating speed of the target gear, described in control
The step of gear of gearbox switches to the target gear, including：
When the odd even attribute of the default gear and the target gear differs, judge that the rotating speed of the engine is
The no demand rotating speed for rising to the target gear；
If so, the gear for controlling the gearbox switches to the target gear by the default gear.
On the other hand, the embodiment of the present invention also provides a kind of control device of Vehicle Accelerating Period, is applied to hybrid power
Automobile, the hybrid vehicle include：Preceding axial brake device and back shaft driving device, the preceding axial brake device include starting
Machine, gearbox and the clutch being set between the engine and the gearbox, the back shaft driving device include driving
Motor；The control device includes：
Acquisition module, for obtaining the acceleration demand torque when automobile is in pure motor driving state；
First control module controls if being more than the max. output torque of driving motor for the acceleration demand torque
Engine start；
Second control module, when the demand rotating speed of the default gear for reaching gearbox in the rotating speed of the engine,
It controls clutch to be closed, wherein the default gear is provided the highest gear in gear by the gearbox；
Third control module, for obtaining target gear according to the current vehicle speed of automobile, and in the rotating speed of the engine
When rising to the demand rotating speed of the target gear, the gear for controlling the gearbox switches to the target gear.
Optionally, the acquisition module includes：
Submodule is acquired, for acquiring the accelerator pedal aperture when automobile is in pure motor driving state；
Acquisition submodule, for according to the accelerator pedal aperture, obtaining the acceleration demand torque.
Optionally, the third control module includes：
First judging submodule, for when the default gear is identical as the odd even attribute of the target gear, judging
Whether the rotating speed of the engine rises to the demand rotating speed of the first gear, wherein first gear is between described default
The different gear of odd even attribute with the default gear between gear and the target gear；
First control submodule, for if so, the gear for controlling the gearbox switches to first gear；
Second judgment submodule, for judging whether the rotating speed of the engine rises to the demand turn of the target gear
Speed；
Second control submodule, for if so, the gear for controlling the gearbox switches to institute by first gear
State target gear.
Optionally, the third control module includes：
Third judging submodule, for when the odd even attribute of the default gear and the target gear differs, sentencing
Whether the rotating speed of the disconnected engine rises to the demand rotating speed of the target gear；
Third control submodule, for if so, the gear for controlling the gearbox switches to institute by the default gear
State target gear.
On the other hand, the embodiment of the present invention also provides a kind of hybrid vehicle, including：Preceding axial brake device and rear axle drive
Dynamic device, the preceding axial brake device include engine, gearbox and are set between the engine and the gearbox
Clutch, the back shaft driving device include driving motor；Further include：The control device of Vehicle Accelerating Period as described above.
One or more embodiments of the invention has the advantages that：
Scheme in the embodiment of the present invention is in pure motor driving state in automobile, and rear axle driving motor, which cannot supply, to be added
When fast demand torque, engine start is controlled, when reaching the demand rotating speed of the default gear of gearbox in the rotating speed of engine, control
Clutch processed is closed, in advance output torque, and the benefit during realizing rapidly is turned round, and targeted gear is obtained according to the current vehicle speed of automobile
Position, and when the rotating speed of engine rises to the demand rotating speed of target gear, the gear for controlling gearbox switches to target gear,
The response time of engine torque can maximumlly be shortened, improve response speed, improve power performance.
Description of the drawings
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
Fig. 1 shows the dynamical system configuration diagrams in the hybrid vehicle in first embodiment of the invention；
Fig. 2 indicates the flow chart of the control method of the Vehicle Accelerating Period in first embodiment of the invention；
Fig. 3 indicates the phase transition schematic diagram in Vehicle Accelerating Period in the embodiment of the present invention；
Fig. 4 indicates the structure diagram of the control device of Vehicle Accelerating Period in second embodiment of the invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
First embodiment
A kind of control method of Vehicle Accelerating Period is disclosed in the embodiment of the present invention, is applied to hybrid vehicle, this kind
Dynamical system framework in hybrid vehicle is that rear axle is driven using motor, front axle using conventional engines and gearbox and from
Clutch cooperation is driven.
In conjunction with shown in Fig. 1, which includes：Preceding axial brake device and back shaft driving device, front axle driving
Device includes engine, gearbox and the clutch being set between the engine and the gearbox, rear axle driving dress
It sets including driving motor.
Specifically, in this kind of dynamical system framework, gearbox is DCT (double-clutch speed changer).
The preceding axial brake device is used to that vehicle front to be driven to rotate, including (present invention is with 6DCT by traditional engine and DCT
For) structure, in addition match unification motor and an electronic oil pump is operated.
The engine can arrange in pairs or groups BSG (light hybrid motor) uses, and BSG may act as starter and generator, use
It to start engine, or charges to HV Battery (power battery), BSG is mounted on motor head, forms P0 structures.
Alternatively, engine collocation ISG (automobile start power generation all-in-one machine) is used, it is mounted on after engine, clutch front end, forms P1
Structure.
For driving automobile back wheel to rotate, which is individually driven the back shaft driving device by a driving motor
Dynamic rear axle, becomes P4 structures.
This kind of P0/P1+P4 framework, and moving frame structure currently is mixed compared with the 4 wheel driven of mainstream, pure electric vehicle row may be implemented in this framework
It sails, i.e., rear axle is operated alone, and during pure motor driving, power battery not enough power supply or rear axle driving motor torque are unsatisfactory for
Operator demand or power battery break down, and engine intelligent starts, and to drive vehicle to travel, can also pass through BSG motors
It charges to electrical equipment on power battery and vehicle, can also realize antero posterior axis while drive, realize 4 wheel driven function.
Specifically, wherein be suitable for the control method of the Vehicle Accelerating Period of this kind of hybrid vehicle, in conjunction with Fig. 2 institutes
Show, specifically includes：
Step 101：Obtain the acceleration demand torque when automobile is in pure motor driving state.
When automobile is in pure motor driving state, it is understood that there may be accelerate demand, after driver does acceleration operation at this time, can produce
It is raw to accelerate demand torque, to complete accelerator.The acquisition of the acceleration demand torque can be operated according to the acceleration of driver
To obtain.
As a specific implementation mode, the step of acceleration demand torque of the acquisition when automobile is in pure motor driving state
Suddenly, may include：Acquire the accelerator pedal aperture when automobile is in pure motor driving state；It is opened according to the accelerator pedal
Degree, obtains the acceleration demand torque.When driver needs to accelerate, the operation of step on the accelerator can be generally taken, to export
Acceleration signals, at this time automobile will obtain acceleration signals, according to pedal aperture determine accelerate demand torque.Also either pass through acquisition
Other in addition to accelerator pedal can realize the control signal of acceleration controller part, to obtain accelerating demand torque.
Step 102：If the acceleration demand torque is more than the max. output torque of driving motor, engine start is controlled.
When automobile is in pure motor driving state, to realize that automobile accelerates demand, need to adjust gear to target gear,
And automobile needs a larger acceleration torque at this time, when the max. output torque of driving motor in back shaft driving device is not enough to
When acceleration demand torque is provided, shows that rear axle occurs driving hypodynamic situation, the acceleration demand that driver is provided cannot be met
Torque needs to start the engine in front axle at this time, engine is made to reach a higher rotating speed, and the acceleration to meet driver is turned round
Square demand.The realization of the control engine start can send startup engine to instruct to engine starting control, with reality
Now dragging engine starts running.
Step 103：When reaching the demand rotating speed of the default gear of gearbox in the rotating speed of the engine, clutch is controlled
It is closed, wherein the default gear is provided the highest gear in gear by the gearbox.
In the step, in vehicle pure motor driving, there are one preset gears for gearbox tool, but clutch remains open
State makes gearbox not combined with engine, prevent it is counter drag engine consume energy.Controlling the realization that clutch is closed can be
The instruction for being closed clutch is sent to clutch controller, clutch controller control clutch is made to execute corresponding actions.This is obtained
Know that the rotating speed of engine reaches the process of the demand rotating speed of the default gear of gearbox, can be from that acquisition of engine controller
Corresponding rotary speed information makes rotating speed judgement on this basis.
The gear is the highest gear in gearbox, since high gear corresponds to a smaller engine speed, is being controlled
After engine start processed, the rotating speed of engine is gradually increased since 0, when the demand that engine speed reaches the default gear turns
When fast, the clutch controlled between engine and gearbox is closed, and makes to reach rotating speed of target not yet in engine speed
When, it can in advance export there are one torque value, be turned round with before finally realizing target gear and the object vehicle speed of service, realizing to mend,
By way of putting into gear in advance, accelerates the engine torque response time in Vehicle Accelerating Period, improve vehicles dynamic performance.This is default
Gear provides the highest gear in gear by the gearbox, can make in accelerator, no matter target gear is how many,
Before reaching target gear, there can be torque output, ensure to accelerate power performance.
Preferably, according to the highest gear facilities of universal gearbox, which is preferably 6 grades.
Step 104：Target gear is obtained according to the current vehicle speed of automobile, and target gear is risen in the rotating speed of engine
Demand rotating speed when, the gear for controlling gearbox switches to target gear.
After the default gear of engine combination gearbox has torque output, accelerator is obtained in conjunction with current vehicle speed
In target gear control the gear of gearbox when the rotating speed of engine constantly rises, and reaches the demand rotating speed of target gear
Target gear is switched to, the gear of the gearbox, it may be possible to gear identical with default gear, it is also possible in default gear base
Shifting state after changing on plinth.The realization that the gear of control gearbox switches to target gear can send gear to cut
Instruction is changed to gearbox control, gearbox control control gearbox is made to execute corresponding actions.Preferably, above steps can
To be to be performed operation by the entire car controller in automobile.
As a specific implementation mode, on the one hand, wherein, the demand that target gear should be risen in the rotating speed of engine turns
When fast, the step of gear of gearbox switches to target gear is controlled, including：
When default gear is identical as the odd even attribute of target gear, judge whether the rotating speed of the engine rises to
The demand rotating speed of one gear, wherein first gear between the default gear and the target gear with institute
State the different gear of odd even attribute of default gear；
If so, the gear for controlling the gearbox switches to first gear；
Judge whether the rotating speed of the engine rises to the demand rotating speed of the target gear；
If so, the gear for controlling the gearbox switches to the target gear by first gear.
As a specific implementation mode, on the other hand, wherein the demand that target gear is risen in the rotating speed of engine turns
When fast, the step of gear of the gearbox switches to the target gear is controlled, including：
When the odd even attribute of the default gear and the target gear differs, judge that the rotating speed of the engine is
The no demand rotating speed for rising to the target gear；
If so, the gear for controlling the gearbox switches to the target gear by the default gear.
The above-mentioned two process, gearbox is DCT (double-clutch speed changer), since its characteristic is：When gear from a high position to
When low level switches, directly low gear can be tuned to from the different high gear of odd even attribute, and it is strange when high gear and low gear
Even attribute is identical, such as when being all even number gear, then needs first to be tuned to intermediate odd number gear and be used as transition gear, realize finally
Gear conversion.
Specifically, it is that 6 gears say the above process for target gear is 3 gear with default gear in conjunction with shown in Fig. 3
It is bright.
When automobile is in pure motor driving state, which is the first stage, and in the 1. stage in corresponding diagram, this stage is
Pure motor driving stage, vehicle are driven using rear axle, and the driving demand torque of vehicle is equal to driving motor torque, at this time speed changer
Gear is 6 gears, but clutch does not combine, and front axle does not have torque output；When driver's depth stepping on accelerator pedal, demand one compared with
Big driving torque, in the 2. stage in corresponding diagram, rear axle driving force is insufficient, and rear axle driving motor can not meet the torsion of acceleration demand
Square needs to control front axle engine start, when engine speed reaches the demand rotating speed of 6 gears, the 3. stage in corresponding diagram, and control
Clutch processed is closed, this stage is to mend the torsion stage in advance, and front axle can have torque output as early as possible；Front axle output torque is according to current
Speed obtains target gear, when it is 3 gear to determine target gear, when engine speed is improved to 3 gear shifting points, in corresponding diagram
The 4. stage directly exit 6 gears since the time is shorter, be switched into 3 gears, clutch slipping, front axle output torque persistently increases
Add, the acceleration demand torque until reaching driver, completes accelerator；During being somebody's turn to do, increases one and mends the torsion stage in advance,
That is, engine flywheel and 6 is made to keep off the stage combined, when default gear is even number, and target gear is odd number, can in engine and
After 6 grades of combinations, when engine speed reaches the demand rotating speed of 3 gear gears, 3 gears directly is switched to from 6 gears, change accelerator
Middle power output is insufficient, and torque responsive time slow problem improves vehicles dynamic performance.
And when target gear is equally (such as 4 gears) when even number is kept off with default gear, shift transformation sequence is at this time：6 gears
→ 4 gear of → 5 gear combines, first output torque that is, first when engine speed reaches 6 gear demand rotating speed with preset 6 gear, then
When engine speed reaches 5 gear demand rotating speed, 5 gears are switched to from 6 gears, finally when engine speed reaches 4 gear demand rotating speed,
4 gears are switched to from 5 gears, for other gears, as hereinbefore, details are not described herein for switching principle.
The pre- mode of putting into gear is especially suitable for engine shutdown process, maximumlly shortens the response time of engine torque,
Response speed is improved, power performance is improved.
The control method in the embodiment of the present invention is in pure motor driving state in automobile, and rear axle driving motor cannot
When supply accelerates demand torque, engine start is controlled, the demand that the default gear of gearbox is reached in the rotating speed of engine turns
When fast, control clutch is closed, in advance output torque, is realized that the benefit in accelerator is turned round, is obtained according to the current vehicle speed of automobile
Target gear, and when the rotating speed of engine rises to the demand rotating speed of target gear, the gear for controlling gearbox switches to mesh
Gear is marked, the response time of engine torque can be maximumlly shortened, improves response speed, improves power performance.
Second embodiment
Also a kind of control device of Vehicle Accelerating Period of the embodiment of the present invention is applied to hybrid vehicle, the mixing
Power vehicle includes：Preceding axial brake device and back shaft driving device, the preceding axial brake device include engine, gearbox and set
The clutch being placed between the engine and the gearbox, the back shaft driving device include driving motor；In conjunction with Fig. 4 institutes
Show, which includes：Acquisition module 201, the first control module 202, the second control module 203 and third control module
204。
Acquisition module 201, for obtaining the acceleration demand torque when automobile is in pure motor driving state.
First control module 202 is controlled if being more than the max. output torque of driving motor for the acceleration demand torque
Engine start processed.
Second control module 203, the demand rotating speed of the default gear for reaching gearbox in the rotating speed of the engine
When, control clutch is closed, wherein the default gear is provided the highest gear in gear by the gearbox.
Third control module 204 for obtaining target gear according to the current vehicle speed of automobile, and turns in the engine
When speed rises to the demand rotating speed of the target gear, the gear for controlling the gearbox switches to the target gear.
Preferably, according to the highest gear facilities of universal gearbox, which is preferably 6 grades.
Wherein, the acquisition module 201 includes：
Submodule is acquired, for acquiring the accelerator pedal aperture when automobile is in pure motor driving state.
Acquisition submodule, for according to the accelerator pedal aperture, obtaining the acceleration demand torque.
Wherein, the third control module 204 includes：
First judging submodule, for when the default gear is identical as the odd even attribute of the target gear, judging
Whether the rotating speed of the engine rises to the demand rotating speed of the first gear, wherein first gear is between described default
The different gear of odd even attribute with the default gear between gear and the target gear.
First control submodule, for if so, the gear for controlling the gearbox switches to first gear.
Second judgment submodule, for judging whether the rotating speed of the engine rises to the demand turn of the target gear
Speed.
Second control submodule, for if so, the gear for controlling the gearbox switches to institute by first gear
State target gear.
Wherein, the third control module 204 includes：
Third judging submodule, for when the odd even attribute of the default gear and the target gear differs, sentencing
Whether the rotating speed of the disconnected engine rises to the demand rotating speed of the target gear.
Third control submodule, for if so, the gear for controlling the gearbox switches to institute by the default gear
State target gear.
A kind of hybrid vehicle of the disclosure of the embodiment of the present invention, including：Preceding axial brake device and back shaft driving device, institute
Axial brake device includes engine, gearbox and the clutch being set between the engine and the gearbox, institute before stating
It includes driving motor to state back shaft driving device；Further include：The control device of foregoing Vehicle Accelerating Period.
The control device in the embodiment of the present invention and automobile are in pure motor driving state, rear axle driving electricity in automobile
When machine cannot supply acceleration demand torque, engine start is controlled, the default gear of gearbox is reached in the rotating speed of engine
When demand rotating speed, control clutch is closed, in advance output torque, and the benefit during realizing rapidly is turned round, according to the current vehicle of automobile
Speed obtains target gear, and when the rotating speed of engine rises to the demand rotating speed of target gear, the gear for controlling gearbox is cut
Target gear is shifted to, the response time of engine torque can be maximumlly shortened, improves response speed, improves vehicle power
Property.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiment, the same or similar parts between the embodiments can be referred to each other.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, in embodiments of the present invention, relational terms such as first and second and the like are only
Only it is used for distinguishing one entity or operation from another entity or operation, without necessarily requiring or implying these realities
There are any actual relationship or orders between body or operation.Moreover, the terms "include", "comprise" or its it is any its
He is intended to non-exclusive inclusion by variant, so that process, method, article or terminal including a series of elements are set
Standby includes not only those elements, but also includes other elements that are not explicitly listed, or further includes for this process, side
Method, article or the intrinsic element of terminal device.In the absence of more restrictions, being limited by sentence "including a ..."
Fixed element, it is not excluded that there is also other identical in process, method, article or the terminal device including the element
Element.
Above-described is the preferred embodiment of the present invention, it should be pointed out that the ordinary person of the art is come
It says, can also make several improvements and retouch under the premise of not departing from principle of the present invention, these improvements and modifications also exist
In protection scope of the present invention.
Claims (7)
1. a kind of control method of Vehicle Accelerating Period is applied to hybrid vehicle, which is characterized in that the hybrid power vapour
Vehicle includes：Preceding axial brake device and back shaft driving device, the preceding axial brake device include engine, gearbox and are set to institute
The clutch between engine and the gearbox is stated, the back shaft driving device includes driving motor；The control method packet
It includes：
Obtain the acceleration demand torque when automobile is in pure motor driving state；
If described accelerate max. output torque of the demand torque more than driving motor, engine start is controlled；
When reaching the demand rotating speed of the default gear of gearbox in the rotating speed of the engine, control clutch is closed, wherein institute
It states default gear and highest gear in gear is provided by the gearbox；
Target gear is obtained according to the current vehicle speed of automobile, and the need of the target gear are risen in the rotating speed of the engine
When seeking rotating speed, the gear for controlling the gearbox switches to the target gear；
When the rotating speed in the engine rises to the demand rotating speed of the target gear, the gear of the gearbox is controlled
The step of switching to the target gear, including：
When the odd even attribute of the default gear and the target gear differs, judge the engine rotating speed whether on
Rise to the demand rotating speed of the target gear；
If so, the gear for controlling the gearbox switches to the target gear by the default gear.
2. control method according to claim 1, which is characterized in that the acquisition is in pure motor driving state in automobile
When acceleration demand torque the step of, including：
Acquire the accelerator pedal aperture when automobile is in pure motor driving state；
According to the accelerator pedal aperture, the acceleration demand torque is obtained.
3. control method according to claim 1, which is characterized in that the rotating speed in the engine rises to described
When the demand rotating speed of target gear, the step of gear of the gearbox switches to the target gear is controlled, including：
When the default gear is identical as the odd even attribute of the target gear, judge whether the rotating speed of the engine rises
To the demand rotating speed of the first gear, wherein first gear is between the default gear and the target gear
With the different gear of odd even attribute of the default gear；
If so, the gear for controlling the gearbox switches to first gear；
Judge whether the rotating speed of the engine rises to the demand rotating speed of the target gear；
If so, the gear for controlling the gearbox switches to the target gear by first gear.
4. a kind of control device of Vehicle Accelerating Period is applied to hybrid vehicle, which is characterized in that the hybrid power vapour
Vehicle includes：Preceding axial brake device and back shaft driving device, the preceding axial brake device include engine, gearbox and are set to institute
The clutch between engine and the gearbox is stated, the back shaft driving device includes driving motor；The control device packet
It includes：
Acquisition module, for obtaining the acceleration demand torque when automobile is in pure motor driving state；
First control module, if being more than the max. output torque of driving motor for the acceleration demand torque, control is started
Machine starts；
Second control module, when the demand rotating speed of the default gear for reaching gearbox in the rotating speed of the engine, control
Clutch is closed, wherein the default gear is provided the highest gear in gear by the gearbox；
Third control module for obtaining target gear according to the current vehicle speed of automobile, and rises in the rotating speed of the engine
To the target gear demand rotating speed when, the gear for controlling the gearbox switches to the target gear；
The third control module includes：
Third judging submodule, for when the odd even attribute of the default gear and the target gear differs, judging institute
Whether the rotating speed for stating engine rises to the demand rotating speed of the target gear；
Third control submodule, for if so, the gear for controlling the gearbox switches to the mesh by the default gear
Mark gear.
5. control device according to claim 4, which is characterized in that the acquisition module includes：
Submodule is acquired, for acquiring the accelerator pedal aperture when automobile is in pure motor driving state；
Acquisition submodule, for according to the accelerator pedal aperture, obtaining the acceleration demand torque.
6. control device according to claim 4, which is characterized in that the third control module includes：
First judging submodule is used for when the default gear is identical as the odd even attribute of the target gear, described in judgement
Whether the rotating speed of engine rises to the demand rotating speed of the first gear, wherein first gear is between the default gear
The different gear of odd even attribute with the default gear between the target gear；
First control submodule, for if so, the gear for controlling the gearbox switches to first gear；
Second judgment submodule, for judging whether the rotating speed of the engine rises to the demand rotating speed of the target gear；
Second control submodule, for if so, the gear for controlling the gearbox switches to the mesh by first gear
Mark gear.
7. a kind of hybrid vehicle, which is characterized in that including：Such as claim 4-6 any one of them Vehicle Accelerating Periods
Control device.
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| CN201610877652.2A CN106335500B (en) | 2016-10-08 | 2016-10-08 | A kind of control method of Vehicle Accelerating Period, device and hybrid vehicle |
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| CN201610877652.2A CN106335500B (en) | 2016-10-08 | 2016-10-08 | A kind of control method of Vehicle Accelerating Period, device and hybrid vehicle |
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Cited By (1)
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| EP4155147A4 (en) * | 2020-07-06 | 2023-11-22 | Great Wall Motor Company Limited | Mode switch control method and apparatus for hybrid vehicle, and vehicle |
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| CN107738649B (en) * | 2017-10-31 | 2020-04-24 | 潍柴动力股份有限公司 | Method and device for determining driving demand torque |
| CN109606350B (en) * | 2018-12-24 | 2020-07-07 | 浙江吉利汽车研究院有限公司 | Engine starting control method, device and system |
| CN111434549B (en) * | 2018-12-25 | 2021-08-20 | 长城汽车股份有限公司 | Vehicle control method and system and vehicle |
| CN112406850B (en) * | 2019-08-22 | 2024-03-19 | 比亚迪股份有限公司 | Hybrid vehicle, control method and control system thereof, and storage medium |
| CN112208514A (en) * | 2019-12-24 | 2021-01-12 | 长城汽车股份有限公司 | Vehicle and control method and device thereof |
| CN114838121B (en) * | 2022-05-31 | 2024-06-04 | 重庆长安汽车股份有限公司 | Control method and system for auxiliary gear engagement of wet double clutch synchronizer and automobile |
| CN116494946A (en) * | 2023-05-18 | 2023-07-28 | 广州汽车集团股份有限公司 | Hybrid power drive control method and device, electronic equipment and storage medium |
| CN117508145B (en) * | 2024-01-04 | 2024-05-14 | 中国第一汽车股份有限公司 | Power control method and power control system for hybrid vehicle |
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