CN108556839A - A kind of energy management method and system of hybrid vehicle - Google Patents
A kind of energy management method and system of hybrid vehicle Download PDFInfo
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- CN108556839A CN108556839A CN201810297945.2A CN201810297945A CN108556839A CN 108556839 A CN108556839 A CN 108556839A CN 201810297945 A CN201810297945 A CN 201810297945A CN 108556839 A CN108556839 A CN 108556839A
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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
- 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
- B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
- B60W20/14—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion in conjunction with braking regeneration
-
- 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
- B60W10/08—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
- B60W10/11—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
- B60W10/24—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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge 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
- B60W2710/02—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
- B60W2710/08—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
- B60W2710/1005—Transmission ratio engaged
-
- 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
- B60W2710/24—Energy storage means
- B60W2710/242—Energy storage means for electrical energy
- B60W2710/248—Current for loading or unloading
Abstract
The present invention provides the energy management method of hybrid vehicle and systems.The energy management method includes：The hybrid vehicle residual electric quantity of power battery, energy regenerating power and high pressure accessory power under downhill running operating mode are obtained, wherein energy regenerating power is obtained according to the torque and torque calculation of motor when energy regenerating；Residual electric quantity be less than the first default charge value, and energy regenerating power be more than high pressure accessory power when, according to proper energy amount regenerative power carry out energy regenerating, wherein the first default charge value be driving mode under force driving power generation when the corresponding charge value of power battery；Residual electric quantity be less than the first default charge value, and energy regenerating power be less than or equal to high pressure accessory power when, carry out driving power generation while carrying out energy regenerating so that the power generation torque of motor for engine power generation torque and energy regenerating the sum of torque.The present invention program can prevent power battery from crossing the case where putting.
Description
Technical field
The present invention relates to the energy management technical fields of hybrid vehicle, more particularly, to a kind of hybrid vehicle
Energy management method and system.
Background technology
Automatic transmission may be used in the transmission system of hybrid vehicle.Automatic transmission refers to according to engine operating condition
And the speed changer of vehicle gait of march automatic gear selecting and shift.When vehicle sliding, hybrid vehicle can engine not
Continue to travel only by the inertia of vehicle in the case that power is provided.The power provided at this time due to not needing engine, because
And engine can save fuel by oil-break.
However, in the case where hybrid vehicle is in and slides or gently step on the operating mode of braking, when the electricity of power battery is relatively low, and
When the power of high pressure attachment, that is, high voltage electric part is higher, since speed change box clutch is in discrete state, mixing
Power car can not carry out driving power generation, if at this point, when energy regenerating motor power (hereinafter referred energy regenerating power) nothing
Method meets high pressure accessory power, then can there is technical issues that power battery is crossed.Mode commonly used in the prior art is upper
In the case of stating, the power supply of high pressure attachment is directly disconnected, it is clear that this mode can bring bad experience to user.
Invention content
It is an object of the present invention to solve in the prior art be in hybrid vehicle to slide or gently step on braking
Operating mode under, the electricity of power battery is relatively low and the power of high pressure attachment, that is, high voltage electric part it is higher in the case of, energy returns
It receives power battery caused by power cannot be satisfied high pressure accessory power and crosses the technical issues of putting.
Particularly, the present invention provides a kind of energy management method of hybrid vehicle, the hybrid vehicle packets
Engine, double clutch gearboxes, motor and power battery are included, double clutch gearboxes include first clutch, the second clutch
Device, odd number axis and even number axis, the first clutch are arranged on the odd number axis, and positioned at the engine and are arranged in institute
Between stating the odd number gear on odd number axis, the second clutch is arranged on the even number axis, and positioned at the engine and is set
Between setting the even number gear on the even number axis, the motor suspension passes through the second clutch on the even number axis
It is connected with the engine, the energy management method includes the following steps：
Obtain the hybrid vehicle residual electric quantity of the power battery, energy regenerating under downhill running operating mode
Power and high pressure accessory power, wherein the energy regenerating power torque of the motor and torque when being according to energy regenerating
It calculates and obtains；
It is less than the first default charge value in the residual electric quantity, and the energy regenerating power is more than the high pressure attachment
When power, energy regenerating is carried out according to proper energy amount regenerative power, wherein the first default charge value is to be forced under driving mode
The power battery corresponding charge value when driving power generation；
It is less than the described first default charge value in the residual electric quantity, and the energy regenerating power is less than or equal to institute
When stating high pressure accessory power, driving power generation is carried out while carrying out energy regenerating, so that the power generation torque of the motor is institute
State the sum of the power generation torque of engine and the torque of energy regenerating.
Optionally, it is less than the described first default charge value in the residual electric quantity, and the energy regenerating power is less than
Or when equal to the high pressure accessory power, the odd number shelves is linked into, the first clutch is engaged, and detach second clutch
Device so that the engine drives the hybrid car travel by odd number gear, then is driven by the even number axis
The electric power generation is carried out at the same time energy regenerating to carry out driving power generation.
Optionally, it is less than the described first default charge value in the residual electric quantity, and the energy regenerating power is less than
Or when equal to the high pressure accessory power, it is linked into the even gear, detaches the first clutch, and in conjunction with second clutch
Device, so that motor described in the driven by engine is rotated to carry out driving power generation, and meanwhile it is described mixed by even number gear driving
Power car traveling is closed, and carries out energy regenerating.
Optionally, it is less than the first default charge value in the residual electric quantity, and the energy regenerating power is more than described
When high pressure accessory power, energy regenerating is carried out according to target energy recycling torque, with to the power battery charging；
Wherein, the target energy recycling torque is to be opened according to master cylinder pressure, the brake switch of the hybrid vehicle
Degree and speed, which calculate, to be obtained.
Optionally, the power generation torque of the engine is obtained according to the power calculation of the high pressure attachment.
Particularly, the present invention also provides a kind of Energy Management System of hybrid vehicle, the hybrid vehicles
Including engine, double clutch gearboxes, motor and power battery, double clutch gearboxes include first clutch, second from
Clutch, odd number axis and even number axis, the first clutch are arranged on the odd number axis, and are existed positioned at the engine and setting
Between odd number gear on the odd number axis, the second clutch is arranged on the even number axis, and positioned at the engine and
Between the even number gear being arranged on the even number axis, the motor suspension passes through second clutch on the even number axis
Device is connected with the engine, and the Energy Management System includes：
First acquisition unit, for obtain the hybrid vehicle under downhill running operating mode the power battery it is surplus
Remaining charge value；
Second acquisition unit, for obtaining hybrid vehicle high pressure accessory power under downhill running operating mode；
Computing unit, the torque of the motor and torque calculation obtain energy regenerating power when for according to energy regenerating；
Processing unit, for being less than the first default charge value in the residual electric quantity, and the energy regenerating power is big
When the high pressure accessory power, energy regenerating is carried out according to proper energy amount regenerative power, wherein the first default charge value is
The power battery corresponding charge value when forcing driving power generation under driving mode；And
It is less than the described first default charge value in the residual electric quantity, and the energy regenerating power is less than or equal to institute
When stating high pressure accessory power, the motor is made to carry out driving power generation while carrying out energy regenerating, so that the hair of the motor
Electric torque is the sum of the torque of the power generation torque and energy regenerating of the engine.
Optionally, the processing unit is configured to be less than the described first default charge value in the residual electric quantity, and
When the energy regenerating power is less than or equal to the high pressure accessory power, the odd number shelves are linked into, engage first clutch
Device, and the second clutch is detached, so that the engine drives the hybrid car travel by odd number gear,
The electric power generation is driven to be carried out at the same time energy regenerating to carry out driving power generation by the even number axis again.
Optionally, the processing unit is configured to be less than the described first default charge value in the residual electric quantity, and
When the energy regenerating power is less than or equal to the high pressure accessory power, it is linked into the even gear, detaches first clutch
Device, and in conjunction with the second clutch, so that motor rotation described in the driven by engine is passed through simultaneously with carrying out driving power generation
The even number gear drives the hybrid car travel, and carries out energy regenerating.
Optionally, the processing unit is configured to be less than the first default charge value in the residual electric quantity, and described
When energy regenerating power is more than the high pressure accessory power, energy regenerating is carried out according to target energy recycling torque, with to described
Power battery charging；
Wherein, the target energy recycling torque is to be opened according to master cylinder pressure, the brake switch of the hybrid vehicle
Degree and speed, which calculate, to be obtained.
Scheme according to the present invention can be less than the first default charge value in residual electric quantity, and energy regenerating power is small
When high pressure accessory power, it may be implemented to carry out driving power generation while energy regenerating.Thus, it is possible to anti-stopping power
It's the case where putting pasts battery.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Description of the drawings
Some specific embodiments that the invention will be described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical reference numeral denotes same or similar component or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing：
Fig. 1 is the fundamental diagram of the engine mission of hybrid vehicle according to an embodiment of the invention,
In show torque transmission paths in step S200 shown in Fig. 2；
Fig. 2 is the schematic flow chart of the energy management method of hybrid vehicle according to an embodiment of the invention；
Fig. 3 is the fundamental diagram of the engine mission of hybrid vehicle according to an embodiment of the invention,
In show engine in step S300 shown in Fig. 3 torque transmission paths when odd number is kept off；
Fig. 4 is the fundamental diagram of the engine mission of hybrid vehicle according to an embodiment of the invention,
In show engine in step S300 shown in Fig. 3 torque transmission paths when even number is kept off；
Fig. 5 is the schematic diagram of the Energy Management System of hybrid vehicle according to an embodiment of the invention；
Drawing reference numeral：
1- engines；2- first clutches；3- second clutches；4- odd number axis；5- even number axis；6- odd numbers are kept off；7- even numbers
Gear；8- wheels；9- first acquisition units；10- second acquisition units；11- computing units；12- processing units.
Specific implementation mode
Fig. 1 is the fundamental diagram of the engine mission of hybrid vehicle according to an embodiment of the invention.Such as
Shown in Fig. 1, which includes engine 1, double clutch gearboxes, motor and power battery, double clutch speed-changing luggages
First clutch 2, second clutch 3, odd number axis 4 and even number axis 5 are included, first clutch 2 is arranged on odd number axis 4, and is located at
Between engine 1 and the odd number gear 6 being arranged on odd number axis 4, second clutch 3 is arranged on even number axis 5, and is located at engine
1 and be arranged on even number axis 5 even number gear 7 between, motor suspension passes through second clutch 3 and engine on even number axis 5
1 is connected.Wherein, which for example can be 7DCTH gearboxes.Wherein, odd number gear 6 may include 1 gear, 3 gears, 5
Gear and 7 gears.Even number gear 7 may include 2 gears, 4 gears and 6 gears.Wherein, C1 represents first clutch 2 in Fig. 1, C2 represent second from
Clutch 3.
Fig. 2 shows the schematic flows of the energy management method of hybrid vehicle according to an embodiment of the invention
Figure.As shown in Fig. 2, the energy management method includes：
Step S100 obtains the hybrid vehicle residual electric quantity of power battery, energy under downhill running operating mode and returns
Power and high pressure accessory power are received, wherein energy regenerating power is obtained according to the torque and torque calculation of motor when energy regenerating
；
Step S200 is less than the first default charge value in residual electric quantity, and energy regenerating power is more than high pressure attachment work(
When rate, energy regenerating is carried out according to proper energy amount regenerative power, wherein the first default charge value is to force driving hair under driving mode
Power battery corresponding charge value when electric；
Step S300 is less than the first default charge value in residual electric quantity, and energy regenerating power is less than or equal to high pressure
When accessory power, driving power generation is carried out while carrying out energy regenerating, so that the power generation torque of motor is the power generation of engine 1
The sum of the torque of torque and energy regenerating.
According to the solutions of the embodiments of the present invention, the first default charge value, and energy regenerating can be less than in residual electric quantity
When power is less than or equal to high pressure accessory power, it may be implemented to carry out driving power generation while energy regenerating.Thus, it is possible to anti-
Stopping power battery crosses the case where putting.
In step s 200, it is less than the first default charge value in residual electric quantity, and energy regenerating power is attached more than high pressure
When part power, energy regenerating is carried out according to target energy recycling torque, with to power battery charging；Wherein, target energy recycles
Torque is to be calculated to obtain according to the master cylinder pressure of hybrid vehicle, brake switch aperture and speed.At this point, carrying out energy
When recycling, engine 1 is in idling or the state of shutdown, and first clutch 2 and second clutch 3 detach, and motor passes through even number
Gear 7 is connected with the wheel 8 of hybrid vehicle.Wherein, shown in Fig. 1 at this time energy regenerating when torque transmission paths.It can by Fig. 1
Know, torque is transferred to motor from wheel 8 by even number axis 5, to carry out energy regenerating.
In step S300, it is less than the first default charge value in residual electric quantity, and energy regenerating power is less than or equal to
When high pressure accessory power, energy regenerating is carried out at the same time into driving power generation.Entire car controller VCU first is according to the work(of high pressure attachment
Rate calculates system requirements power generation torque, i.e. power generation torque needed for motor, power generation torque and energy regenerating in conjunction with needed for the motor
Torque (i.e. energy regenerating when motor torque) 1 power generation torque of engine is calculated.Secondly, according to system requirements power generation torque
Virtual throttle aperture is calculated, and virtual throttle opening value is sent to automatic gear-box control unit TCU, it is big in accelerator open degree value
When zero, TCU controls the engagement of first clutch 2 and second clutch 3 according to actual conditions and detaches, to realize energy time
Power generation torque is not unloaded during receiving, i.e., increases the driving power generation torque of engine 1 on the basis of energy regenerating torque, realizes row
Vehicle generating function.
In one embodiment, in the gear of engine 1 when on odd number gear 6, transmission path is as shown in figure 3, at this point, the
One clutch 2 engages, and second clutch 3 detaches, and makes engine 1 by 6 driving hybrid car travel of odd number gear, then pass through
Even number axis 5 drives electric power generation to be carried out at the same time energy regenerating to carry out driving power generation.
In another embodiment, in the gear of engine 1 when on even gear, transmission path as shown in figure 4, first from
Clutch 2 detaches, and second clutch 3 combines, and makes engine 1 drive motor rotation to carry out driving power generation, while keeping off 7 by even number
Hybrid car travel is driven, and carries out energy regenerating.
Correspondingly, the embodiment of the present invention additionally provides a kind of Energy Management System of hybrid vehicle.As shown in figure 5,
The Energy Management System includes first acquisition unit 9, second acquisition unit 10, computing unit 11 and processing unit 12.This first
Acquiring unit 9 is used to obtain the residual electric quantity of hybrid vehicle power battery under downhill running operating mode.Second acquisition
Unit 10 is for obtaining hybrid vehicle high pressure accessory power under downhill running operating mode.The computing unit 11 is used for according to energy
The torque of motor and torque calculation obtain energy regenerating power when amount recycling.The processing unit 12 in residual electric quantity for being less than
First default charge value, and energy regenerating power be more than high pressure accessory power when, make motor receive power generation command to carry out energy
Recycling, wherein the first default charge value is power battery corresponding charge value when forcing driving power generation under driving mode；And surplus
Remaining charge value be less than the first default charge value, and energy regenerating power be less than or equal to high pressure accessory power when, make motor into
Driving power generation is carried out while row energy regenerating, so that the power generation torque of motor is the power generation torque and energy regenerating of engine 1
The sum of torque.
In one embodiment, processing unit 12 is configured to be less than the first default charge value, and energy in residual electric quantity
When measuring regenerative power less than or equal to high pressure accessory power, odd number shelves are linked into, engage first clutch 2, and detach the second clutch
Device 3 so that engine 1 by odd number gear 6 driving hybrid car travels, then by even number axis 5 drive electric power generation, with into
Every trade vehicle generates electricity, and is carried out at the same time energy regenerating.
In another embodiment, processing unit 12 is configured to be less than the first default charge value in residual electric quantity, and
When energy regenerating power is less than or equal to high pressure accessory power, be linked into even gear, detach first clutch 2, and combine second from
Clutch 3 so that engine 1 drives motor rotation to carry out driving power generation, while passing through 7 driving hybrid vehicle row of even number gear
It sails, and carries out energy regenerating.
Processing unit 12 is configured to be less than the first default charge value, and energy in residual electric quantity in one embodiment
When regenerative power is more than high pressure accessory power, energy regenerating is carried out according to target energy recycling torque, with to power battery charging.
Wherein, target energy recycling torque is to be obtained according to the calculating of the master cylinder pressure of hybrid vehicle, brake switch aperture and speed
.The other feature of the embodiment of the present invention is corresponding with the feature of the energy management method of above-mentioned hybrid vehicle, herein not
It repeats one by one again.
According to the solutions of the embodiments of the present invention, the first default charge value, and energy regenerating can be less than in residual electric quantity
When power is less than or equal to high pressure accessory power, it may be implemented to carry out driving power generation while energy regenerating.Thus, it is possible to anti-
Stopping power battery crosses the case where putting.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or derive many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers other all these variations or modifications.
Claims (9)
1. a kind of energy management method of hybrid vehicle, for being carried out in downhill running operating mode to the hybrid vehicle
Energy management, which is characterized in that the hybrid vehicle includes engine, double clutch gearboxes, motor and power battery, institute
It includes first clutch, second clutch, odd number axis and even number axis to state double clutch gearboxes, and the first clutch is arranged in institute
It states on odd number axis, and between the engine and the odd number being arranged on odd number axis gear, the second clutch cloth
It sets on the even number axis, and between the engine and the even number being arranged on even number axis gear, the motor is outstanding
It hangs on the even number axis, and is connected with the engine by the second clutch, the energy management method includes such as
Lower step：
Obtain the hybrid vehicle residual electric quantity of the power battery, energy regenerating power under downhill running operating mode
And high pressure accessory power, wherein the torque and torque calculation of energy regenerating power motor when being according to energy regenerating
It obtains；
It is less than the first default charge value in the residual electric quantity, and the energy regenerating power is more than the high pressure accessory power
When, energy regenerating is carried out according to proper energy amount regenerative power, wherein the first default charge value is to force driving under driving mode
The power battery corresponding charge value when power generation；
It is less than the described first default charge value in the residual electric quantity, and the energy regenerating power is less than or equal to the height
When pressing accessory power, driving power generation is carried out while carrying out energy regenerating, so that the power generation torque of the motor is the hair
The sum of the power generation torque of motivation and the torque of energy regenerating.
2. energy management method according to claim 1, which is characterized in that be less than described first in the residual electric quantity
Default charge value, and when the energy regenerating power is less than or equal to the high pressure accessory power, is linked into the odd number shelves, engages
The first clutch, and the second clutch is detached, so that the engine drives the mixing by odd number gear
Power car travels, then drives the electric power generation by the even number axis, to carry out driving power generation, is carried out at the same time energy and returns
It receives.
3. energy management method according to claim 1, which is characterized in that be less than described first in the residual electric quantity
Default charge value, and when the energy regenerating power is less than or equal to the high pressure accessory power, is linked into the even gear, detaches
The first clutch, and in conjunction with the second clutch, so that motor rotation is to drive a vehicle described in the driven by engine
Power generation, while the hybrid car travel is driven by even number gear, and carry out energy regenerating.
4. energy management method according to claim 1, which is characterized in that it is default to be less than first in the residual electric quantity
Charge value, and the energy regenerating power be more than the high pressure accessory power when, according to target energy recycling torque carry out energy
Recycling, with to the power battery charging；
Wherein, target energy recycling torque be according to the master cylinder pressure of the hybrid vehicle, brake switch aperture with
And speed is calculated and is obtained.
5. energy management method according to claim 2 or 3, which is characterized in that the power generation torque of the engine is root
It is obtained according to the power calculation of the high pressure attachment.
6. a kind of Energy Management System of hybrid vehicle, for being carried out in downhill running operating mode to the hybrid vehicle
Energy management, which is characterized in that the hybrid vehicle includes engine, double clutch gearboxes, motor and power battery, institute
It includes first clutch, second clutch, odd number axis and even number axis to state double clutch gearboxes, and the first clutch is arranged in institute
It states on odd number axis, and between the engine and the odd number being arranged on odd number axis gear, the second clutch cloth
It sets on the even number axis, and between the engine and the even number being arranged on even number axis gear, the motor is outstanding
It hangs on the even number axis, and is connected with the engine by the second clutch, the Energy Management System includes：
First acquisition unit, the residue electricity for obtaining hybrid vehicle power battery under downhill running operating mode
Magnitude；
Second acquisition unit, for obtaining hybrid vehicle high pressure accessory power under downhill running operating mode；
Computing unit, the torque of the motor and torque calculation obtain energy regenerating power when for according to energy regenerating；
Processing unit, for being less than the first default charge value in the residual electric quantity, and the energy regenerating power is more than institute
When stating high pressure accessory power, energy regenerating is carried out according to proper energy amount regenerative power, wherein the first default charge value is to drive
The power battery corresponding charge value when forcing driving power generation under pattern；And
It is less than the described first default charge value in the residual electric quantity, and the energy regenerating power is less than or equal to the height
When pressing accessory power, the motor is made to carry out driving power generation while carrying out energy regenerating, so that the power generation of the motor is turned round
Square is the sum of the torque of the power generation torque and energy regenerating of the engine.
7. Energy Management System according to claim 6, which is characterized in that the processing unit is configured to described surplus
Remaining charge value is less than the described first default charge value, and the energy regenerating power is less than or equal to the high pressure accessory power
When, the odd number shelves are linked into, the first clutch is engaged, and detach the second clutch, so that the engine passes through
Odd number gear drives the hybrid car travel, then drives the electric power generation by the even number axis, with into every trade
Vehicle generates electricity, and is carried out at the same time energy regenerating.
8. Energy Management System according to claim 6, which is characterized in that the processing unit is configured to described surplus
Remaining charge value is less than the described first default charge value, and the energy regenerating power is less than or equal to the high pressure accessory power
When, it is linked into the even gear, the first clutch is detached, and in conjunction with the second clutch, so that the driven by engine
The motor rotation drives the hybrid car travel to carry out driving power generation by even number gear, and carries out
Energy regenerating.
9. Energy Management System according to claim 6, which is characterized in that the processing unit is configured to described surplus
Remaining charge value be less than the first default charge value, and the energy regenerating power be more than the high pressure accessory power when, according to target
Energy regenerating torque carries out energy regenerating, with to the power battery charging；
Wherein, target energy recycling torque be according to the master cylinder pressure of the hybrid vehicle, brake switch aperture with
And speed is calculated and is obtained.
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| WO2022037632A1 (en) * | 2020-08-19 | 2022-02-24 | 长城汽车股份有限公司 | Battery energy management method and device for hybrid vehicle, and machine-readable storage medium |
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