CN106976456B - Hybrid-vehicle control method and device - Google Patents
Hybrid-vehicle control method and device Download PDFInfo
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- CN106976456B CN106976456B CN201610025519.4A CN201610025519A CN106976456B CN 106976456 B CN106976456 B CN 106976456B CN 201610025519 A CN201610025519 A CN 201610025519A CN 106976456 B CN106976456 B CN 106976456B
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- 238000000034 method Methods 0.000 title claims abstract description 78
- 230000008569 process Effects 0.000 claims abstract description 55
- 230000003247 decreasing effect Effects 0.000 claims abstract description 11
- 230000005611 electricity Effects 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 10
- 230000003993 interaction Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
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Classifications
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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
- B60W10/04—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
-
- 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
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
-
- 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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/19—Improvement of gear change, e.g. by synchronisation or smoothing gear shift
-
- 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
- B60W2710/08—Electric propulsion units
- B60W2710/083—Torque
-
- 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
- B60W2710/105—Output torque
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
A kind of hybrid-vehicle control method and device, which comprises obtain vehicle current working status；When the vehicle receives other operation requests of driver there is currently coaxial downshift request or in shift process, control driving motor offer is switched to the torque increased or decreased needed for target gear.Using the method and device, the shift time of DCT vehicle can be reduced, improves the ride comfort of vehicle in shift process.
Description
Technical field
The present invention relates to field of vehicle control more particularly to a kind of hybrid-vehicle control methods and device.
Background technique
Hybrid vehicle (Hybrid Vehicle) refers to vehicle drive system by multiple single drives that can be operated simultaneously
Move the vehicle of system combined composition, the road horsepower of vehicle according to actual vehicle running state by single drive system individually or
It is common to provide.Usually said hybrid vehicle generally refers to oil-electric vehicle (Hybrid Electric
Vehicle, HEV), i.e., using traditional internal combustion engine and motor as power source.
Double-clutch automatic transmission (Dual Clutch Transmission, DCT) is in shift process, and power is not
Interruption, and oil consumption is lower, has become the automatic transmission of current vehicle first choice.The vehicle of conventionally employed DCT is in shift process
In, can often occur that shift time is longer, the bad problem of ride comfort.
Summary of the invention
What the embodiment of the present invention solved is how to reduce the shift time of DCT vehicle, and vehicle is flat in improvement shift process
Pliable problem.
To solve the above problems, the embodiment of the present invention provides a kind of hybrid-vehicle control method, comprising: obtain vehicle
Current working status；When the vehicle receives other operations of driver there is currently coaxial downshift request or in shift process
When request, control driving motor offer is switched to the torque increased or decreased needed for target gear.
Optionally, when the vehicle is there is currently when coaxial downshift request, control driving motor offer is switched to target shift
Increased torque needed for position, comprising: torque needed for obtaining target gear；The hybrid vehicle gear is reduced into a shelves
Position；After the hybrid vehicle reduces a gear, the corresponding output torque of gear where calculating；It is defeated to control driving motor
The difference of the output torque corresponding with the place gear of torque needed for the target gear out.
Optionally, when the vehicle receives other operation requests of driver in shift process, the control driving
Motor offer is switched to the torque increased or decreased needed for target gear, comprising: when other operation requests of the driver received
In include gear shift operation request when, obtain target gear needed for torque；The torque needed for the target gear is greater than current gear
When corresponding output torque, torque output corresponding with the current gear needed for control driving motor exports the target gear
The difference of torque；When the torque needed for the target gear is less than current gear corresponding output torque, control driving motor output
Torque reduces, and the output torque that the driving motor reduces is equal to the corresponding output torque of the current gear and the target shift
The difference of torque needed for position.
Optionally, after receiving gear shift operation request, further includes: detect whether current gear shift operation has been completed；?
When current gear shift operation is completed, the gear shift operation request is executed；When current gear shift operation is carrying out, then according to current
Gear shift operation is carried out to received gear shift operation request after the completion of the gear shift operation of progress.
Optionally, the hybrid-vehicle control method further include: when the hybrid vehicle is in speed operation
When, obtain the hybrid vehicle accumulator electric-quantity；When the battery capacity is higher than default electricity, the driving electricity is controlled
Machine output torque drives the hybrid vehicle to be in 2 grades of travelings.
The embodiment of the invention also provides another hybrid-vehicle control methods, comprising: obtains vehicle work at present
State；When the hybrid vehicle is in speed operation, the hybrid vehicle accumulator electric-quantity is obtained；
When the battery capacity is higher than default electricity, driving motor output torque is controlled, the hybrid electric vehicle is driven
In 2 grades traveling.
The embodiment of the invention provides a kind of hybrid vehicle start stop control devices, comprising:
First acquisition unit, for obtaining vehicle current working status；First control unit, it is current for working as the vehicle
When receiving other operation requests of driver there are coaxial downshift request or in shift process, control driving motor provides switching
To the torque increased or decreased needed for target gear.
Optionally, the first control unit is used for: when the vehicle is there is currently when coaxial downshift request, obtaining target
Torque needed for gear；The hybrid vehicle gear is reduced into a gear；A shelves are reduced in the hybrid vehicle
Behind position, the corresponding output torque of gear where calculating；Control torque and the institute needed for driving motor exports the target gear
In the difference of the corresponding output torque of gear.
Optionally, the first control unit is used for: when the vehicle receives other behaviour of driver in shift process
When including gear shift operation request in other operation requests of the driver for requesting, and receiving, torque needed for obtaining target gear；
When the torque needed for the target gear is greater than current gear corresponding output torque, control driving motor exports the target shift
The difference of torque needed for position and the corresponding output torque of the current gear；The torque needed for the target gear is less than current gear
When corresponding output torque, control driving motor output torque reduces, and the output torque that the driving motor reduces is equal to described
The difference of torque needed for the corresponding output torque of current gear and the target gear.
Optionally, the hybrid vehicle start stop control device further include: shift control unit, for detecting current shift behaviour
Make whether to have completed；When current gear shift operation is completed, the gear shift operation request is executed；Current gear shift operation
When progress, then gear shift operation is carried out to received gear shift operation request according to after the completion of the gear shift operation currently carried out.
Optionally, the hybrid vehicle start stop control device further include: the second control unit, for working as the hybrid power
When vehicle is in speed operation, the hybrid vehicle accumulator electric-quantity is obtained；When the battery capacity is higher than default electricity
When, the driving motor output torque is controlled, the hybrid vehicle is driven to be in 2 grades of travelings.
The embodiment of the invention also provides another hybrid vehicle start stop control devices, comprising: second acquisition unit is used for
Obtain vehicle current working status；Third acquiring unit, for obtaining institute when the hybrid vehicle is in speed operation
State hybrid vehicle accumulator electric-quantity；Third control unit, for when the battery capacity is higher than default electricity, control to be driven
Dynamic motor output torque drives the hybrid vehicle to be in 2 grades of travelings.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantage that
When there are coaxial downshift requests for vehicle, or when receiving in shift process other operation requests of driver, pass through
Driving motor offer is switched to the torque increased or decreased needed for target gear and passes through when that is, torque needed for target gear is larger
It controls driving motor and increased torque is provided；When the torque needed for target gear is smaller, is reduced and provided by control driving motor
Torque, so as to reduce shift time, improve in shift process without exporting corresponding torque by gear switch
The ride comfort of vehicle.
When hybrid vehicle is in speed operation, and hybrid vehicle accumulator electric-quantity is higher than default electricity, control
Hybrid vehicle processed is in 2 grades of travelings, so as to save the time for switching to 2 grades from 1 grade, further improves and shifted gears
The ride comfort of vehicle in journey.
Detailed description of the invention
Fig. 1 is the flow chart of one of embodiment of the present invention hybrid-vehicle control method；
Fig. 2 is existing a kind of 6 grades and is down to 4 grades of coaxial downshift process schematic；
Fig. 3 is 6 grades of one of embodiment of the present invention coaxial downshift process schematics for being down to 4 grades；
Fig. 4 is shift process schematic diagram when receiving other operation requests in a kind of existing shift process；
Fig. 5 is shift process signal when receiving other operation requests in one of embodiment of the present invention shift process
Figure；
Fig. 6 is shift process schematic diagram when a kind of existing vehicle is in lower-speed state；
Fig. 7 is shift process schematic diagram when one of embodiment of the present invention vehicle is in lower-speed state；
Fig. 8 is the flow chart of another hybrid-vehicle control method in the embodiment of the present invention；
Fig. 9 is the structural schematic diagram of one of embodiment of the present invention hybrid vehicle start stop control device；
Figure 10 is the structural schematic diagram of another hybrid vehicle start stop control device in the embodiment of the present invention.
Specific embodiment
The existing vehicle using DCT can often occur that shift time is longer in shift process, and ride comfort is bad to ask
Topic.For example, when driver step on the throttle the aperture of pedal be greater than certain value when, schemed according to shift, calculate that there is currently coaxial
The demand of downshift.By from 6 grades be down to 4 grades for, gear is down to 5 grades first, gear is down to 4 grades again later, there is shift
Time longer problem.For another example, driver frequently steps on accelerator releasing, gear box control unit (TCU) in upshift of stepping on the gas, without throttle
It upshifts, downshift of stepping on the gas and without frequent switching between throttle downshift, there are shift shock in shift process, causes vehicle flat
It is pliable poor.
In embodiments of the present invention, when there are coaxial downshift requests for vehicle, or receive in shift process driver its
When his operation requests, the torque increased or decreased needed for target gear, i.e. target gear institute are switched to by driving motor offer
When needing torque larger, increased torque is provided by control driving motor；When the torque needed for target gear is smaller, pass through control
Driving motor reduces the torque provided, without exporting corresponding torque by gear switch, when so as to reduce shift
Between, improve the ride comfort of vehicle in shift process.
It is understandable to enable the above objects, features, and advantages of the embodiment of the present invention to become apparent, it is right with reference to the accompanying drawing
Specific embodiments of the present invention are described in detail.
The embodiment of the invention provides a kind of hybrid-vehicle control methods, referring to Fig.1, below by way of specific steps into
Row is described in detail.
Step S101 obtains vehicle current working status.
In specific implementation, vehicle current working status can be obtained by acquiring the signal of each sensor.At this
In inventive embodiments, when TCU detects that vehicle there are when coaxial downshift request, or detects and receives driving in shift process
When other operation requests of member, step S102 can be executed.
Step S102, when the vehicle received there is currently coaxial downshift request or in shift process driver other
When operation requests, control driving motor offer is switched to the torque increased or decreased needed for target gear.
In specific implementation, vehicle can be detected by TCU currently whether there is coaxial downshift request, and detection is being changed
Whether gear detects other operation requests of driver in the process.When TCU detect vehicle there is currently coaxial downshift request or
When receiving other operation requests of driver in shift process, driving motor offer is controlled by HCU and is switched to target gear
The torque of required increase or reduction.That is, detecting the currently performed movement of driver by TCU, responded by HCU
The currently performed movement of driver.
When the aperture for the gas pedal that driver steps on is greater than certain value, according to preset gearshift map, can calculate
There is currently the demands coaxially to downshift.For example, gas pedal aperture is greater than 80%, then it can be calculated and be learnt currently according to gearshift map
In the presence of the demand coaxially to downshift.In practical applications, coaxial downshift refers to: hybrid vehicle is continuously reduced from current gear A
Two gears are to target gear C.For example, current gear is 6 grades, then coaxial downshift, which refers to, is down to 4 grades from 6 grades for gear.
In embodiments of the present invention, detect hybrid vehicle there is currently when coaxial downshift request, can first by
The gear of hybrid vehicle reduces a gear from current gear A.After reducing a gear, hybrid vehicle is in shelves
Position B.At this point, and do not continue to gear being reduced to target gear C from gear B, but calculate hybrid vehicle and be in target
Required output torque N when gear CC, then calculate the corresponding output torque N of gear BB.Due to hybrid vehicle gear at this time
In gear B, NBLess than NC, can be at this time (N by driving motor offer value thereforeC-NB) output torque, that is, pass through driving
Motor provides output torque, so that the corresponding output torque of gear B is NB+(NC-NB)=NC.In other words, pass through driving motor
Output torque, so that hybrid vehicle is equal in the total torque output torque corresponding with gear C that gear B is exported.
In an embodiment of the present invention, by it is coaxial downshift for from 6 grades be down to 4 grades for, above-mentioned downshift process is said
It is bright.
When calculating present hybrid vehicle in the presence of the demand coaxially to downshift, HCU calculates hybrid vehicle and is in 4
Output torque N when shelves4And hybrid vehicle be in 5 grades when output torque N5.Gear is down to 5 grades from 6 grades, by driving
Dynamic motor output valve is (N4-N5) torque so that defeated when the total torque that exports at 5 grades of hybrid vehicle is with 4 grades
Moment of torsion etc. out.
In actual operation, using the downshift method in the embodiment of the present invention, entire coaxial downshift process can be described such as
Under: 1) 5 grade shift fork pre-engagement；2) clutch interaction；3) 6 grades of shift forks disengage.After 6 grades of shift forks disengage, vehicle is in 5 grades of stabilizations
Driving status, at this point, vehicle stablizes total torque and 4 grades when driving at 5 grades since driving motor exports corresponding torque
It is equal.
And in the prior art, by coaxial downshift for from 6 grades be down to 4 grades for, gear is first down to 5 grades from 6 grades, then from 5
Shelves are down to 4 grades, to realize downshift process.Entire coaxial downshift process can be described as follows: 1) 5 grades of shift fork pre-engagements；2) from
Clutch interaction；3) 6 grades of shift forks disengage；4) 4 grades of shift fork pre-engagements；5) clutch interaction；6) 5 grades of shift forks disengage.It is de- in 5 grades of shift forks
After opening, vehicle is in 4 grades of stable driving status.
Referring to Fig. 2, gives existing a kind of 6 grades and be down to 4 grades of coaxial downshift process schematic.
In t0Before moment, when the aperture of driver's bend the throttle is greater than certain value, i.e. accelerator open degree increases to one
When definite value, determining vehicle, there is currently coaxial shift demands.In t0Moment, engine response driver's acceleration request, engine
Revolving speed is gradually increasing.In t0~t1Moment, during 6 grades of shift fork positions are in place, 5 grades of shift fork position pre-engagements, 4 grades of shift fork positions are in
Position.In t1~t2Moment, clutch execute downshift interactive operation.In t2~t3At the moment, 6 grades of shift fork positions from being converted into place
Position, 5 grades of shift fork positions are in place, 4 grades of shift fork position pre-engagements.In t3~t4Moment, clutch execute downshift interactive operation.
In t4~t5Moment, 6 grades of shift fork positions, 5 grades of shift fork positions are in middle position, and 4 grades of shift fork positions are in place.At this point, completing same
6 grades of axis are down to 4 grades of operation.
Referring to Fig. 3, when giving using the coaxial downshift control method provided in the embodiment of the present invention, coaxially downshift process
Schematic diagram.
In t0~t3Moment, TCU complete to be down to 5 grades of operation from 6 grades.It is turned round since driving motor provides 4 grades of corresponding outputs
The difference of square and 5 grades of corresponding output torques, therefore 4 grades of total torque of output when hybrid vehicle is in 5 grades are equal,
Gear is down to 4 grades from 5 grades without being further continued for by the power demand that can satisfy driver.
Coaxial downshift process in the embodiment of the present invention is compared with coaxial downshift process in the prior art it is found that
It only needs that the corresponding torque of output target gear can be realized by 3 operations in the embodiment of the present invention, and in the prior art then
6 operations are needed just to be able to achieve the corresponding torque of output target gear.Therefore, compared with prior art, in the embodiment of the present invention
Coaxial downshift method downshift operation number can be effectively reduced, greatly reduce the time of downshift, drive ride comfort more preferably.
In practical applications, when receiving other operation requests of driver in shift process, for example, driver is frequent
Step on accelerator releasing, TCU downshifts under these four operating conditions frequently in upshift of stepping on the gas, without throttle upshift, downshift of stepping on the gas and without throttle
Switching.
In embodiments of the present invention, when detecting vehicle and receiving other operation requests of driver in shift process,
TCU does not continue the continually frequent switching under above-mentioned four kinds of operating conditions, but is switched to target gear institute by driving motor offer
The torque that need to be increased or decreased.When the corresponding output torque of target gear for needing to switch to is greater than the corresponding output of current gear
When torque, by the difference of the driving motor corresponding output torque of compensation target gear and the corresponding output torque of current gear；Work as mesh
When torque needed for marking gear is less than current gear corresponding output torque, control driving motor output torque reduces, in which: driving
The difference of torque needed for the output torque that motor reduces is equal to the corresponding output torque of current gear and target gear.
In embodiments of the present invention, other operation requests of driver are received in shift process detecting vehicle, and
It is not to be immediately performed the gear shift operation received when including gear shift operation request in other operation requests of the driver received
Request, but first judge whether current gear shift operation has been completed.If current gear shift operation is not carried out completion, and is not responding to connect
The gear shift operation request received after the completion of current gear shift operation executes, then goes to execute newest before gear shift operation completion
The gear shift operation request received.If current gear shift operation has executed completion, the shift behaviour received can be directly executed
It requests.In shift process, shift process can also be accelerated by control motor speed.
In the prior art, referring to Fig. 4, give it is existing when vehicle be in shift process receive driver other
Shift process schematic diagram when request.When vehicle receives other operation requests of driver, and other operations in shift process
When including gear shift operation request in request, TCU makes an immediate response gear shift operation request, without in view of current with the presence or absence of shift
Operation, such clutch can have impact in interactive process, cause vehicle ride comfort bad.
Referring to Fig. 5, give using the corresponding shift process schematic diagram of control method in the embodiment of the present invention.Work as vehicle
It is not to be immediately performed corresponding shift request operation, but current when receiving gear shift operation request in shift process
After the completion of gear shift operation, then go to execute recently received gear shift operation request.So as to avoid clutch from impacting, improve vehicle
Ride comfort.
Comparison diagram 4 and Fig. 5 improve vehicle it can be found that the method in the embodiment of the present invention can be avoided clutch impact
Ride comfort.
In practical applications inventors have found that when vehicle is in speed operation, for example, vehicle is in 1 grade of traveling or 2 grades
When driving, if clutch combines comparatively fast, engine speed is easy to cause to pull down；If clutch combination is slower, driving can be allowed
Member feels low speed response delay.
Below by taking driver travels to 1 grade again from 1 grade of starting to 2 grades of stable travelings as an example, to low speed work in the prior art
The gear switch process of vehicle is illustrated under condition.
Referring to Fig. 6, shift process schematic diagram when a kind of existing vehicle is in lower-speed state is given.Driver tramples
Throttle is controlled into starting.After the completion of starting, into 1 grade of stable driving cycle.After meeting shift-up point, into 1 → 2 upshift
Clutch control.After the completion of upshift, 1 grade of shift fork is disengaged, into 2 grades of stable driving cycles.Driver's accelerator releasing reaches 2 → 1 groups
After pitching pre-engagement point, 1 grade of shift fork pre-engagement.After reaching downshift point, into 2 → 1 downshift clutch controls.After the completion of downshift, take off
2 grades of shift forks are opened, into 1 grade of stable driving cycle.
It can be seen that in the prior art, when vehicle is in speed operation, it may appear that often the case where shift, and change
Gear process is complex, easily causes shift fork noise and clutch interaction impact, leads to the problem that vehicle ride comfort is poor.
To solve the above problems, in embodiments of the present invention, first obtaining hybrid electric vehicle in vehicle start referring to Fig. 7
The electricity of battery (high-tension battery) in.When the electricity of battery is greater than default charge value, is exported and turned round by driving motor
Square, driving hybrid vehicle are in 2 grades of travelings, i.e., are exported by driving motor so that hybrid vehicle is in 2 grades of travelings
Torque.
That is, engine is not involved in driving vehicle driving when vehicle is in speed operation, driving motor is only leaned on
Vehicle is driven to travel at 2 grades, so as to avoid clutch interaction impact, therefore vehicle can be improved without carrying out fork controls
Ride comfort.
The embodiment of the invention also provides another hybrid-vehicle control methods, referring to Fig. 8, below by way of specific step
Suddenly it is described in detail.
Step S801 obtains vehicle current working status.
Step S802 obtains the hybrid vehicle battery when the hybrid vehicle is in speed operation
Electricity.
Step S803 controls driving motor output torque when the battery capacity is higher than default electricity, drives described mixed
It closes power car and is in 2 grades of travelings.
Referring to Fig. 9, the embodiment of the invention provides a kind of hybrid vehicle start stop control devices 90, comprising: first obtains list
First 901, first control unit 902, in which:
First acquisition unit 901, for obtaining vehicle current working status；
First control unit 902, for being received there is currently coaxial downshift request or in shift process when the vehicle
When to other operation requests of driver, control driving motor offer is switched to increased torque needed for target gear.
In specific implementation, the first control unit 902 can be used for: when there is currently coaxial downshifts to ask for the vehicle
When asking, torque needed for obtaining target gear；The hybrid vehicle gear is reduced into a gear；In the hybrid electric vehicle
After reducing a gear, the corresponding output torque of gear where calculating；Driving motor is controlled to export needed for the target gear
The difference of torque output torque corresponding with the place gear.
In specific implementation, the first control unit 902 can be used for: when the vehicle receives in shift process
Other operation requests of driver, and when including gear shift operation request in the driver received other operation requests, obtain target
Torque needed for gear；When the torque needed for the target gear is greater than current gear corresponding output torque, driving motor is controlled
The difference of torque needed for exporting the target gear and the corresponding output torque of the current gear；It is turned round needed for the target gear
When square is less than current gear corresponding output torque, control driving motor output torque reduces, and the driving motor reduces defeated
The difference of torque needed for torque is equal to the corresponding output torque of the current gear and the target gear out.
In specific implementation, the hybrid vehicle start stop control device 90 can also include: shift control unit 903, use
Whether completed in the current gear shift operation of detection；When current gear shift operation is completed, the gear shift operation request is executed；?
When current gear shift operation is carrying out, then received gear shift operation is requested according to after the completion of the gear shift operation currently carried out
Carry out gear shift operation.
In specific implementation, the hybrid vehicle start stop control device 90 can also include: the second control unit 904, use
In when the hybrid vehicle is in speed operation, the hybrid vehicle accumulator electric-quantity is obtained；When the battery
When electricity is higher than default electricity, the driving motor output torque is controlled, the hybrid vehicle is driven to be in 2 grades of travelings.
Referring to Fig.1 0, the embodiment of the invention also provides another hybrid vehicle start stop control devices 100, comprising: second
Acquiring unit 1001, third acquiring unit 1002 and third control unit 1003, in which:
Second acquisition unit 1001, for obtaining vehicle current working status；
Third acquiring unit 1002, it is dynamic for when the hybrid vehicle is in speed operation, obtaining the mixing
Power vehicle battery electricity；
Third control unit 1003, for when the battery capacity is higher than default electricity, control driving motor output to be turned round
Square drives the hybrid vehicle to be in 2 grades of travelings.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (8)
1. a kind of hybrid-vehicle control method characterized by comprising
Obtain vehicle current working status；
When the vehicle receives other operation requests of driver there is currently coaxial downshift request or in shift process, control
Driving motor offer processed is switched to the torque increased or decreased needed for target gear；
When the vehicle is there is currently when coaxial downshift request, control driving motor offer is switched to increased needed for target gear
Torque, comprising:
Torque needed for obtaining target gear；
The hybrid vehicle gear is reduced into a gear；
After the hybrid vehicle reduces a gear, the corresponding output torque of gear where calculating；
The difference of torque output torque corresponding with the place gear needed for control driving motor exports the target gear.
2. hybrid-vehicle control method as described in claim 1, which is characterized in that when the vehicle is in shift process
When receiving other operation requests of driver, the control driving motor provides to be switched to be increased or decreased needed for target gear
Torque, comprising:
When in other operation requests of the driver received including gear shift operation request, torque needed for obtaining target gear；
When the torque needed for the target gear is greater than current gear corresponding output torque, control driving motor exports the mesh
The difference of torque needed for marking gear and the corresponding output torque of the current gear；
When the torque needed for the target gear is less than current gear corresponding output torque, control driving motor output torque subtracts
Small, the output torque that the driving motor reduces is equal to needed for the corresponding output torque of the current gear and the target gear
The difference of torque.
3. hybrid-vehicle control method as claimed in claim 2, which is characterized in that receiving gear shift operation request
Afterwards, further includes:
Detect whether current gear shift operation has been completed；
When current gear shift operation is completed, the gear shift operation request is executed；
When current gear shift operation is carrying out, then received shift is grasped according to after the completion of the gear shift operation currently carried out
Make request and carries out gear shift operation.
4. hybrid-vehicle control method as described in claim 1, which is characterized in that further include:
When the hybrid vehicle is in starting and speed operation, the hybrid vehicle accumulator electric-quantity is obtained；
When the battery capacity is higher than default electricity, the driving motor output torque is controlled, the hybrid electric vehicle is driven
2 grades start to walk and in 2 grades of travelings.
5. a kind of hybrid vehicle start stop control device characterized by comprising
First acquisition unit, for obtaining vehicle current working status；
First control unit, for receiving driver there is currently coaxial downshift request or in shift process when the vehicle
When other operation requests, control driving motor offer is switched to the torque increased or decreased needed for target gear；
The first control unit is used for when there is currently when coaxial downshift request, obtain to turn round needed for target gear for the vehicle
Square；The hybrid vehicle gear is reduced into a gear；After the hybrid vehicle reduces a gear, institute is calculated
In the corresponding output torque of gear；It is corresponding with the place gear to control torque needed for driving motor exports the target gear
The difference of output torque.
6. hybrid vehicle start stop control device as claimed in claim 5, which is characterized in that the first control unit is used for:
When the vehicle receives other operation requests of driver in shift process, and the driver received other operations are asked
When including gear shift operation request in asking, torque needed for obtaining target gear；
When the torque needed for the target gear is greater than current gear corresponding output torque, control driving motor exports the mesh
The difference of torque needed for marking gear and the corresponding output torque of the current gear；
When the torque needed for the target gear is less than current gear corresponding output torque, control driving motor output torque subtracts
Small, the output torque that the driving motor reduces is equal to needed for the corresponding output torque of the current gear and the target gear
The difference of torque.
7. hybrid vehicle start stop control device as claimed in claim 6, which is characterized in that further include: shift control unit is used
Whether completed in the current gear shift operation of detection；When current gear shift operation is completed, the gear shift operation request is executed；?
When current gear shift operation is carrying out, then received gear shift operation is requested according to after the completion of the gear shift operation currently carried out
Carry out gear shift operation.
8. hybrid vehicle start stop control device as claimed in claim 5, which is characterized in that further include: the second control unit is used
In when the hybrid vehicle is in starting and speed operation, the hybrid vehicle accumulator electric-quantity is obtained；Work as institute
When stating battery capacity higher than default electricity, the driving motor output torque is controlled, 2 grades of hybrid vehicle startings are driven
And in 2 grades of travelings.
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| CN112092814A (en) * | 2019-06-18 | 2020-12-18 | 比亚迪股份有限公司 | Vehicle downshift acceleration control method and device and vehicle |
| CN113606331B (en) * | 2021-07-29 | 2022-06-03 | 东风华神汽车有限公司 | Gear control method, gear control device, gear control equipment and readable storage medium |
| CN116255453A (en) * | 2021-12-10 | 2023-06-13 | 广州汽车集团股份有限公司 | Gear shifting control method for hybrid electric vehicle, vehicle-mounted controller, vehicle and medium |
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| US9174631B2 (en) * | 2013-06-24 | 2015-11-03 | GM Global Technology Operations LLC | Method and apparatus for controlling transmission shifting in a multi-mode powertrain system |
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