CN108466613A - 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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- CN108466613A CN108466613A CN201810294737.7A CN201810294737A CN108466613A CN 108466613 A CN108466613 A CN 108466613A CN 201810294737 A CN201810294737 A CN 201810294737A CN 108466613 A CN108466613 A CN 108466613A
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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
- B60W10/06—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
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
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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
- 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
-
- 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
- B60W2510/0657—Engine 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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/08—Electric propulsion units
- B60W2510/083—Torque
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention provides a kind of energy management method of hybrid vehicle and systems.The energy management method includes：Obtain the hybrid vehicle residual electric quantity of power battery, energy regenerating power and high pressure accessory power under downhill running operating mode；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；It is less than the first default charge value in residual electric quantity, and energy regenerating power be less than or equal to high pressure accessory power when, motor unloads torque when energy regenerating, and loads the target torque that engine is sent out to carry out driving power generation, and the wherein power generation torque of motor is more than the torque of engine.The present invention program can carry out driving power generation, thus prevent power battery from crossing the case where putting when residual electric quantity is less than the first default charge value and energy regenerating power is less than or equal to high pressure accessory power.
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, the motor unloads torque when energy regenerating, and loads the target torque that the engine is sent out
To carry out driving power generation, wherein the power generation torque of the motor is more than the torque of the engine.
Optionally, torque when motor unloading energy regenerating, and load the target torque that the engine is sent out with
Driving power generation is carried out, including：
Torque when the motor unloading energy regenerating；
When torque value unloading is zero, the gear that the even number is kept off is retracted into neutral gear；
Second clutch is engaged, and the motor is made to load the target torque that the engine is sent out.
Optionally, the target torque of the engine is to be calculated to obtain according to the high pressure accessory power.
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, holding first clutch is engagement state, and so that vehicle is passed through the odd number gear and carry out
Shift.
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.
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, make to carry out energy regenerating according to proper energy amount regenerative power, wherein the first default charge value
For the power battery corresponding charge value when pressure driving generates electricity 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 unloads torque when energy regenerating, and loads the target torque that the engine is sent out
To carry out driving power generation, wherein the power generation torque of the motor is more than the torque 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 so that the torsion when motor unloading energy regenerating
The gear that the even number is kept off is retracted into neutral gear, and engage second clutch, makes institute by square when torque value unloading is zero
It states motor and loads the target torque that the engine is sent out.
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, holding first clutch is engagement state, and makes vehicle
By the odd number gear shift gears.
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.
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, driving power generation can be carried out, thus prevents power battery from crossing the case where putting.
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 energy management method under the downhill running operating mode of hybrid vehicle according to an embodiment of the invention
Schematic flow chart；
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. 2 torque transmission paths when even number is kept off；
Fig. 4 is the schematic flow chart of step S300 shown in Fig. 2；
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 energy managements under the downhill running operating mode of hybrid vehicle according to an embodiment of the invention
The schematic flow chart of method.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, motor unloads torque when energy regenerating, and loads the target torque that engine is sent out to carry out driving power generation,
Wherein the power generation torque of motor is more than the torque of engine.
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, driving power generation can be carried out, thus prevents power battery from crossing 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.
Fig. 3 shows the operation principle of the engine mission of hybrid vehicle according to an embodiment of the invention
Figure.As shown in figure 3, in step S300, be less than the first default charge value in residual electric quantity, and energy regenerating power be less than or
When equal to high pressure accessory power, generate electricity into driving.2 sliding wear of first clutch loads torque during being somebody's turn to do, and keeps vehicle deceleration
Degree.It is engagement state to keep first clutch 2, so that vehicle is passed through the odd number gear 6 and shifts gears.In vehicle deceleration process
In, odd number gear 6 carries out AMT shifts, to ensure the realization of the driving generating function when sliding.
Fig. 4 shows the schematic flow chart of step S300 shown in Fig. 2.As shown in figure 3, the motor unloads energy regenerating
When torque, and load the target torque that the engine 1 is sent out to carry out driving power generation, including：
Step S301, motor unload torque when energy regenerating；
The gear that even number is kept off is retracted into neutral gear by step S302 when torque value unloading is zero；
Step S303 engages second clutch, and the target torque for making motor load engine send out.
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 according to proper energy amount regenerative power 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, motor unload energy
Torque when amount recycling, and the target torque that engine 1 is sent out is loaded to carry out driving power generation, the power generation torque of wherein motor is big
In the torque of engine 1.
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 so that motor unloads torque when energy regenerating, is unloaded in torque value
When being zero, the gear of even number gear 7 is retracted into neutral gear, and engage second clutch 3, the mesh for making motor load engine 1 send out
Mark 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, holding first clutch 2 is engagement state, and vehicle is made to pass through odd number
Gear 6 is shifted gears.
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 spy of the other feature of the embodiment of the present invention and the energy management method under the downhill running operating mode of above-mentioned hybrid vehicle
It levies corresponding, no longer repeats one by one herein.
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, torque when motor unloading energy regenerating, and load the target torque that the engine is sent out with into
Every trade vehicle generates electricity, wherein the power generation torque of the motor is more than the torque of the engine.
2. energy management method according to claim 1, which is characterized in that the torsion when motor unloading energy regenerating
Square, and the target torque that the engine is sent out is loaded to carry out driving power generation, including：
Torque when the motor unloading energy regenerating；
When torque value unloading is zero, the gear that the even number is kept off is retracted into neutral gear；
Second clutch is engaged, and the motor is made to load the target torque that the engine is sent out.
3. energy management method according to claim 2, which is characterized in that the target torque of the engine is root
It calculates and obtains according to the high pressure accessory power.
4. energy management method according to any one of claim 1-3, which is characterized in that small in the residual electric quantity
In the described first default charge value, and when the energy regenerating power is less than or equal to the high pressure accessory power, first is kept
Clutch is engagement state, and so that vehicle is passed through the odd number gear and shift gears.
5. energy management method according to any one of claim 1-3, which is characterized in that small in the residual electric quantity
In the first default charge value, and when the energy regenerating power is more than the high pressure accessory power, recycles and turn round according to target energy
Square 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.
6. a kind of Energy Management System of hybrid vehicle, which is characterized in that the hybrid vehicle includes engine, double
Clutch gearbox, motor and power battery, double clutch gearboxes include first clutch, second clutch, 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 on the odd number axis
Odd number gear between, the second clutch is arranged on the even number axis, and positioned at the engine and be arranged in the idol
Between even number gear on number axis, the motor suspension starts on the even number axis, and by the second clutch with described
Machine is connected, and 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, make to carry out energy regenerating according to proper energy amount regenerative power, wherein the first default charge value is to drive
Sail 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, torque when motor unloading energy regenerating, and load the target torque that the engine is sent out with into
Every trade vehicle generates electricity, wherein the power generation torque of the motor is more than the torque of the engine.
7. the Energy Management System of hybrid vehicle according to claim 6, which is characterized in that the processing unit quilt
It is configured to be less than the described first default charge value in the residual electric quantity, and the energy regenerating power is less than or equal to described
When high pressure accessory power so that the torque when motor unloading energy regenerating will be described when torque value unloading is zero
The gear of even number gear is retracted into neutral gear, and engages second clutch, and the motor is made to load the mesh that the engine is sent out
Mark torque.
8. the Energy Management System of the hybrid vehicle described according to claim 6 or 7, which is characterized in that the processing is single
Member is configured to be less than the described first default charge value in the residual electric quantity, and the energy regenerating power is less than or equal to
When the high pressure accessory power, holding first clutch is engagement state, and so that vehicle is passed through the odd number gear and shift gears.
9. the Energy Management System of the hybrid vehicle described according to claim 6 or 7, which is characterized in that in the residue
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
Amount recycling 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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