CN107499110A - The dynamical system and control method of four-drive hybrid electric vehicle - Google Patents
The dynamical system and control method of four-drive hybrid electric vehicle Download PDFInfo
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- CN107499110A CN107499110A CN201710798864.6A CN201710798864A CN107499110A CN 107499110 A CN107499110 A CN 107499110A CN 201710798864 A CN201710798864 A CN 201710798864A CN 107499110 A CN107499110 A CN 107499110A
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- 238000005183 dynamical system Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 19
- 238000000926 separation method Methods 0.000 claims description 108
- 230000005611 electricity Effects 0.000 claims description 24
- 238000010248 power generation Methods 0.000 claims description 20
- 238000011084 recovery Methods 0.000 claims description 12
- 230000001052 transient effect Effects 0.000 claims description 7
- 230000008450 motivation Effects 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 12
- 230000006870 function Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- 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
- 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/24—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 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 combustion engines
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- 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
- 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/26—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 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 motors or the generators
-
- 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
- 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/28—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 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 electric energy storing means, e.g. batteries or capacitors
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- 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
- 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—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 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 transmission gearings
- B60K6/365—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 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 transmission gearings with the gears having orbital motion
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- 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
- 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 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 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 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
- 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
- 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/52—Driving a plurality of drive axles, e.g. four-wheel drive
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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
- B60W20/20—Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
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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
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The invention discloses a kind of dynamical system of four-drive hybrid electric vehicle and its control method, wherein, the dynamical system includes engine, the first motor, the first inverter, propons planetary reducer, the second motor, the second inverter, rear axle reductor and battery；The present invention only includes two motors and a set of simple planetary gears, and cost is relatively low, under electric-only mode, the present invention can realize the unrestricted choice of forerunner, rear-guard and 4 wheel driven, first motor also has two gears optional, adds the chance for being operated in optimum efficiency, improves pure electronic economy.Under engine mode, the starting of vehicle is realized by electronic infinite variable speed function and run at a low speed, improve vehicle in the economy run at a low speed.When high speed is cruised, engine has three fixed gears optional, for directly driving, using higher efficiency during high engine load, avoids electrical path caused by electronic infinite variable speed from losing, improves transmission efficiency.
Description
Technical field
The present invention relates to a kind of hybrid power automobile power system, is related specifically to a kind of the dynamic of four-drive hybrid electric vehicle
Force system and control method, belong to electric vehicle engineering field.
Background technology
Four-wheel drive cars are widely used because utilization rate is adhered on good road surface on offroad vehicle and performance car.Pass
System realizes the scheme of 4 wheel driven function because the added losses of transfer gear cause the economy of vehicle to be deteriorated with transfer gear.In order to carry
High economy, four-drive hybrid electric vehicle drive propons and back axle respectively with engine and motor.
Patent CN102381177B discloses a kind of hybrid power 4 wheel driven solution, must pass through in engine driving
Propons generator is generated electricity, and a part of engine power is used to charge or powered for rear-wheel motor, in middle and high speed cruise
When engine can not be directly driven, it is less economical, while after front-wheel skids, the driving force of trailing wheel is completely defeated by battery
Output capacity limits.
Patent CN101898557B discloses a kind of hybrid power 4 wheel driven solution, it is possible to achieve the 4 wheel driven of any operating mode
Function, while engine can be used to directly drive in middle and high speed cruise, engine is started under various operating modes and also compares appearance
Easily, function is more complete.But this scheme is in addition to needing two motors, it is also necessary to a complicated more shift automatic variable speeds
Device, cost are higher.
Patent CN105059103A discloses a kind of hybrid power 4 wheel driven solution, and four can be realized in various operating modes
Drive, while the control for starting engine is also fairly simple.The program uses a simple hybrid power dedicated transmission, speed change
Device cost is relatively low, but compared to the more motors of system described in patent CN102381177B, and due to low engine speed without
Method directly drive, need to export engine power by generator when carrying out high-power acceleration, thus generator power compared with
Greatly, while the total power requirements of propons motor and rear bridge driven motor are also larger, and number of motors is more and power requirement is big,
Therefore cost is also higher.
To sum up, subject matter existing for the separately-driven scheme of the forward and backward bridge of hybrid power is that cost is high at present, Part load
Transmission efficiency difference and Part load can not realize 4 wheel driven function.
The content of the invention
Present invention aims at provide a kind of dynamical system and control method of four-drive hybrid electric vehicle, this dynamical system
System possesses pure electric four-wheeled driving function, can also realize four-wheel drive function without the energy content of battery during engine driving.Sending out
Under motivation drive pattern, the system is also equipped with engine direct driving function during middle and high speed driving, improves running efficiency.It is whole
Individual hybrid power system system only includes two motors and simple hybrid power dedicated transmission in addition to engine, can drop
The cost of low four-wheel-drive hybrid power system.
The present invention solves technical problem and adopted the following technical scheme that：A kind of dynamical system of four-drive hybrid electric vehicle, its
Including engine, the first motor, the first inverter, propons planetary reducer, the second motor, the second inverter, rear axle reducing
Fast device and battery；
The battery is connected by the first inverter with first motor circuit, and by the second inverter with it is described
Second motor circuit connects；
Second motor is connected with the rear axle reductor, and the rear axle reductor is connected with rear wheel drive, institute
State engine and the first motor to be connected with the propons planetary reducer respectively, the propons planetary reducer
It is connected with front wheel drive；
Wherein, the propons planetary reducer has at least four rotate elements, when from four rotate elements
Alignment chart when looking, be located at the rotate element of the first motor connection and the rotate element being connected by output gear with front-wheel
By the both sides of the clutch CL1 rotate elements being connected with engine, the rotate element being connected by clutch CL1 with engine
The rotate element being connected with brake B is located at the both sides for the rotate element being connected by output gear with front-wheel；Pass through clutch
Pass through clutch between the rotate element of device CL1 and engine connection and the rotate element connected by output gear and front-wheel
CL2 connections；Engine and the first motor are connected by clutch CL3.
Optionally, the clutch CL3 is jaw clutch.
The present invention solves technical problem and also adopted the following technical scheme that：A kind of power of above-mentioned four-drive hybrid electric vehicle
The control method of system, the dynamical system of the four-drive hybrid electric vehicle are divided into steady state operating mode and transient working pattern；
Steady state operating mode includes parking power generating stage, pure motor driving stage, Motronic control maps variable speed driving stage, engine
Fixed gear direct drive stage, engine tandem drive stage and Brake energy recovery stage；Transient working pattern, which includes, stops
Car starts engine stage and pure electric activation engine stage；It is characterised in that it includes：
S1, parking generate electricity：The parking controls clutch CL3 to combine when generating electricity, clutch CL2 separation, CL1 points of clutch
From brake B separation, engine is directly connected with the first motor, and drives the first motor to rotate and generated electricity；
S2, pure motor driving：Clutch CL3 and clutch CL2 separation during the pure motor driving, engine, which is in, shuts down
State, and have two drives and 4 wheel driven both of which optional；Under two drive patterns, brake B separation, clutch CL1 separation, clutch
CL2 is separated, and clutch CL3 separation, the first motor remains static, the second motor driving trailing wheel；Under 4 wheel driven pattern, first
Motor has that two gears are optional, and described two gears are mono- grade of EV and bis- grades of EV：In mono- grade of EV, brake B is combined, clutch
CL1 is separated, clutch CL2 separation, clutch CL3 separation；In EV2 shelves, brake B separation, clutch CL1 separation, clutch
Device CL2 is combined, clutch CL3 separation；
S3, Motronic control maps variable speed driving：During the Motronic control maps variable speed driving, brake B separation, from
Clutch CL1 is combined, clutch CL2 separation, clutch CL3 separation, and an engine output part passes through propons planetary gear
Decelerator drives front-wheel, and a part changes into electric energy by the first electric power generation, and hybrid controller controls the first motor hair
The electric energy that electricity obtains is used to charge in battery or drives trailing wheel for the second motor, and vehicle is in four-wheel drive state；
S4, the direct drive of engine fixed gear：During the engine fixed gear driving, engine has two fixed gears can
With described two fixed gears are mono- grade of HEV and bis- grades of HEV：During with mono- grade of driving of HEV, brake B is combined, clutch CL1 knots
Close, clutch CL2 separation, clutch CL3 separation；During with bis- grades of drivings of HEV, brake B separation, clutch CL1 is combined, clutch
Device CL2 is combined, clutch CL3 separation；
S5, engine tandem drive：During the engine tandem drive, brake B separation, clutch CL1 separation, clutch
Device CL2 is separated, and clutch CL3 is combined, the first electric power generation, and generated output is used for the second motor driving trailing wheel；
S6, Brake energy recovery：During the Brake energy recovery, reclaimed by the first motor and/or the second motor；
First motor has two kinds of mode of operations：That is mono- grade of EV and bis- grades of EV；In mono- grade of EV, brake B is combined, clutch CL1 separation,
Clutch CL2 is separated, clutch CL3 separation；In bis- grades of EV, brake B separation, clutch CL1 separation, clutch CL2 knots
Close, clutch CL3 separation；First motor applies brake force to front-wheel by generating electricity, and the second motor is applied by generating electricity to trailing wheel
Electric energy obtained by brake force, the first motor and the second electric power generation is used to charge the battery；
S7, parking start engine：When the parking starts engine, brake B separation, clutch CL1 is combined, clutch
Device CL2 is separated, and clutch CL3 is combined, and the first motor drag engine starts；
S8, pure motor driving start engine：During pure electronic two drives traveling, brake B separation, clutch CL1 is combined, from
Clutch CL2 is separated, and clutch CL3 is combined, and the first motor drag engine starts；During pure electric four-wheel drive traveling, in pure electric walking
By way of making clutch CL1 sliding wears a part of moment of torsion of the first motor is used to drive front-wheel on the basis of sailing, a part is turned round
Square is used to start engine.
Optionally, in the engine driving, the second motor also utilizes a part of power of battery driving trailing wheel simultaneously.
Optionally, pure electronic two drive starting mode, pure electric four-wheel drive starting modes is included in the starting control stage and is started
Electromechanical sub- stepless shift mode starting mode；Wherein, when moment of torsion of starting to walk is less than or equal to T1, drive pattern using pure electronic two and rise
Step；When moment of torsion of starting to walk is more than T1 and is less than or equal to T2, started to walk using pure electric four-wheel drive pattern；Used when moment of torsion of starting to walk is more than T2
Motronic control maps stepless shift mode starts to walk；Wherein, T1<T2.
Optionally, under pure electric four-wheel drive pattern, the first motor and the second motor are according to by speed and wheel driving torque
The optimum efficiency combination Map set offline carries out moment of torsion distribution；When vehicle front-wheel or trailing wheel skid, slip wheel is reduced
Motor torque, increase do not skid the Motor torque of side.
Optionally, bis- grades of mono- grade of the EV and EV of the first motor pass through a pure electric vehicle speed door during pure electric four-wheel drive traveling
Limit value switches over, when speed is more than the pure electric vehicle speed threshold value with bis- grades of EV driving, otherwise with mono- grade of driving of EV.
Optionally, engine has three kinds of gears optional：Bis- grades of electronic infinite variable speed pattern, mono- grade of HEV and HEV；Work as speed
Travelled when less than V1 or speed is more than V2 with electronics stepless shift mode；Used when speed is more than or equal to V1 and is less than or equal to V2
Bis- grades of drivings of mono- grade of HEV or HEV；The accelerator pedal and speed two that switching between bis- grades of mono- grade of HEV and HEV passes through default settings
Parameter schedule is shifted gears.
The present invention has the advantages that：With respect to other forward and backward separately-driven 4 wheel driven schemes of bridge, the present invention only includes
Two motors and a set of simple planetary gears, cost is relatively low, under electric-only mode, the present invention can realize forerunner, after
Drive and the unrestricted choice of 4 wheel driven, the first motor also have two gears optional, add the chance for being operated in optimum efficiency, improve
Pure electronic economy.Under engine mode, the starting of vehicle is realized by electronic infinite variable speed function and run at a low speed, improved
Vehicle is in the economy run at a low speed.There are two fixed gears optional when high speed is cruised, for directly driving, utilize hair
Higher efficiency during motivation high load capacity, avoid electrical path caused by electronic infinite variable speed from losing, improve transmission efficiency.Entering
During the very fast traveling of row, because bis- grades of speed ratios of engine HEV are 1, the max. speed of support is relatively low, if to realize higher pole
Speed with electronics stepless shift function, it is necessary to be travelled.Either engine is driven with fixed gear direct drive or electronics electrodeless variable-speed
It is dynamic, can be by the first electric power generation the second motor provide drive needed for energy, realize 4 wheel driven function.Under braking mode,
First motor and the second motor can reclaim braking energy.
Brief description of the drawings
Fig. 1 is the structural representation of the dynamical system of the four-drive hybrid electric vehicle of the present invention；
Fig. 2 is the propons planetary gears lever diagram in Fig. 1；
Fig. 3 is clutch and brake control mode corresponding to the various mode of operations of the present invention, wherein ● represent to combine, have
Moment of torsion transmission；Zero represents separation, no moment of torsion transmission；
Fig. 4 is the structural representation of another embodiment of the dynamical system of the four-drive hybrid electric vehicle of the present invention；
Fig. 5 is the propons planetary gears lever diagram in Fig. 4；
Fig. 6 is the structural representation of another embodiment of the dynamical system of the four-drive hybrid electric vehicle of the present invention；
Fig. 7 is the propons planetary gears lever diagram in Fig. 6；
Embodiment
Technical scheme is further elaborated with reference to embodiment and accompanying drawing.
Embodiment 1
As shown in Fig. 1, Fig. 4 and Fig. 6, a kind of dynamical system of four-drive hybrid electric vehicle is present embodiments provided, it is wrapped
Include engine, the first motor, the first inverter, propons planetary reducer, the second motor, the second inverter, rear axle speed-reducing
Device and battery；
The battery is connected by the first inverter with first motor circuit, to cause the electricity of the battery offer
Can, after being converted by the first inverter, drive first motor to rotate；Meanwhile the battery also passes through the second inverter
It is connected with second motor circuit, to cause the electric energy of the battery offer, after being converted by the second inverter, drives institute
State the rotation of the second motor.
Second motor is connected with the rear axle reductor, to drive the rear axle reducing by second motor
Fast device, in the present embodiment, the output shaft of second motor and the input axis connection of the rear axle reductor；Also, after described
Bridge decelerator is connected with rear axle differential, and rear axle differential is connected with rear wheel drive.In the present embodiment, the rear axle speed-reducing
Device is gear reduction unit, and the rear axle differential can use rear axle differential of the prior art to realize, herein not one by one
Repeat.
The engine and the first motor are connected with the propons planetary reducer respectively, and the propons subtracts
Fast device is connected with front wheel drive again；Wherein, the propons planetary reducer has at least four rotate elements, when from described
When the alignment chart of four rotate elements is looked, the rotate element that is connected with the first motor and it is connected by output gear with front-wheel
Rotate element be located at the both sides of the rotate element being connected with engine by clutch CL1, pass through clutch CL1 and engine
The rotate element of connection and the rotate element being connected with brake B are located at the rotate element being connected by output gear with front-wheel
Both sides；The rotate element being connected by the clutch CL1 rotate elements being connected with engine and by output gear with front-wheel it
Between connected by clutch CL2；Engine and the first motor are connected by clutch CL3.
The engine and the propons planetary reducer are connected, with by before described in the engine driving
Bridge planetary reducer；Moreover, the engine is also connected by clutch CL3 and power transmission shaft with first motor transmission
Connect, in the present embodiment, the clutch CL3 is jaw clutch；It is and described to start when the clutch CL3 is combined
Machine drives first motor to rotate, so that first motor is at generating state, when the clutch CL3 points
From when, first motor can drive the propons planetary reducer.
The propons planetary reducer is connected with the front axle differential, and the front axle differential passes with front-wheel
Dynamic to connect, in the present embodiment, the front axle differential can use front axle differential of the prior art to realize, herein not one
One repeats.
Moreover, the component of above-mentioned driving front wheels and rear wheels can be exchanged, i.e., component (engine, first of former driving front-wheel
Motor, planetary gears, propons planetary reducer and the front axle differential with four rotate elements) be changed to driving after
Wheel, the component (the second motor, rear axle reductor and rear axle differential) of original driving trailing wheel are changed to drive front-wheel.
Moreover, the propons planetary reducer includes planetary gears, driving gear, driven gear, clutch
CL1, clutch CL2 and brake B, when the clutch CL1 is combined, engine and/or motor by clutch CL1 to
Planetary gears passing power；When clutch CL2 is combined, the planetary gears is to driving gear passing power；Institute
State brake B to be used for locked and open the second sun gear S2, so that when the brake B is locked, the second sun gear S2 is not
Rotate, and when brake B is opened, the second sun gear S2 is rotated；
The driving gear is connected with the driven gear, and the driven gear is connected with front axle differential.
Also, first inverter and the second inverter are charging inversion all-in-one, with first motor or
When second motor is in generating state, its caused electric energy can be charged in battery or provide energy to another motor.
Embodiment 2
A kind of control method of the dynamical system of four-drive hybrid electric vehicle is present embodiments provided, wherein, the 4 wheel driven
The dynamical system of hybrid vehicle can be as described in above-mentioned embodiment 1, in the control method, the four-drive hybrid electric
The dynamical system of automobile is divided into steady state operating mode and transient working pattern；Steady state operating mode includes parking power generating stage, pure
Electric running stage, Motronic control maps variable speed driving stage, engine fixed gear direct drive stage, engine series connection are driven
Dynamic stage, reversing stage and power generating stage and Brake energy recovery stage；That is, under steady state operating mode,
To realize 4 wheel driven function.Transient working pattern includes parking and starts engine stage and pure electric activation engine stage.
In the parking power generating stage, engine is directly connected by clutch CL3 with the first motor, and drives the first electricity
Machine rotates, so that the first electric power generation.Or the brake B separation of planetary gears, clutch CL1 are combined, clutch
Device CL2 is separated, and clutch CL3 separation, the planetary gear ring of first row (output rotate element) of planetary gears passes through
Halting mechanism mechanical locking, the electric power generation of engine driving first.In parking power generation mode, the second motor does not work.
That is, in parking power generating stage, first way：The brake B separation of planetary gears, clutch
CL1 is separated, and clutch CL2 separation, jaw clutch CL3 is combined, and the first motor is generated electricity, turn of engine and the first motor
Speed is equal with moment of torsion.
The brake B separation of second way planetary gears, clutch CL1 are combined, clutch CL2 separation, clutch
Device CL3 is separated, and output rotate element carries out locking, engine and the first electricity by the halting mechanism of hybrid power dedicated transmission
The rotating speed and torque relationship of machine be：
In formula, TEM1For the power generation torque absolute value of the first motor, TICEFor engine torque, NICEFor engine speed,
NEM1For the rotating speed of the first motor, ZS1For the planetary sun gear number of teeth of first row, ZR1For the planetary gear ring of first row
The number of teeth.
In the pure motor driving stage, engine is in stopped status；Under two drive patterns, the system of planetary gears
Dynamic device B separation, clutch CL1 separation, clutch CL2 separation, clutch CL3 separation, the first motor remain static, not disappeared
Consuming electric power, the second motor driving trailing wheel, so as to realize the advance of vehicle or retrogressing.Under 4 wheel driven pattern, the first motor has two
Gear is optional, is referred to as mono- grade of EV and bis- grades of EV：In mono- grade of EV, the brake B of planetary gears is combined, clutch
CL1 is separated, clutch CL2 separation, clutch CL3 separation；In EV2 shelves, the brake B separation of planetary gears, clutch
Device CL1 is separated, and clutch CL2 is combined, clutch CL3 separation.First motor is by propons planetary reducer with before
Bridge differential mechanism drives front-wheel；Second motor drives trailing wheel by rear axle reductor and rear axle differential；First motor
Battery is all from the electric energy of the second motor, and the power of the first motor and the second motor point is controlled by hybrid controller
Match somebody with somebody.
That is, at pure motor driving stage (under electric-only mode), vehicle acquiescence drives patterns traveling according to two, with the
Two motors drive trailing wheel, the brake B separation of preceding bridge portion, and clutch CL1 is separated, and clutch CL2 separation, the first motor is in
Free state.When entire car controller requires that vehicle enters pure electric four-wheel drive pattern, the first motor drives front-wheel, in mono- grade of EV
When, brake B is combined, and clutch CL1 separation, clutch CL2 separation, the first motor output torque is by planetary gears
Fast ratio is：
In formula, ZR1For the planetary gear ring number of teeth of first row, ZS1For the planetary sun gear number of teeth of first row, ZR2For
The gear ring number of teeth of two-row planetary gear, ZS2For the planetary sun gear number of teeth of second row.
Wherein, mono- grade of EV is mainly used in low speed pure motor driving.
In bis- grades of EV, brake B separation, clutch CL1 separation, clutch CL2 combines, the first motor output torque warp
The speed of planetary gears is crossed than being 1, is mainly used in high speed pure motor driving.
In the Motronic control maps variable speed driving stage, the brake B separation of planetary gears, clutch
CL1 is combined, clutch CL2 separation, clutch CL3 separation, and an engine output part passes through propons planetary gear speed-reduction
Device drives front-wheel, and a part changes into electric energy by the first electric power generation, and hybrid controller controls the first electric power generation to obtain
To electric energy be used to charge in battery or drive trailing wheel for the second motor, vehicle is in four-wheel drive state.
Wherein, when brake B is separated, clutch CL1 is combined, and clutch CL2 separation, the first motor is in generating state.
The rotation speed relation of engine, the first motor and output rotate element is as follows：
In formula, NOUTThe rotating speed of rotate element, N are exported for planetary gearsOUTThere is corresponding relation with speed, pass through adjustment
The rotating speed N of first motorEM1The rotating speed N of i.e. adjustable engineICE, so as to realize electronic infinite variable speed.
The torque relationship of electronic infinite variable speed is as follows：
Electric energy obtained by first electric power generation is used for the second motor driving trailing wheel, realizes the four-wheel drive without the energy content of battery,
And the electric energy can be used for charging the battery.
When being run at a low speed in engine driving, it is higher that electronic infinite variable speed pattern can ensure that engine is operated in efficiency
Near operating point, the efficiency of low vehicle speeds is improved.
Directly drive the stage in the engine fixed gear, engine has two fixed gears can use, i.e. mono- grade of HEV with
Bis- grades of HEV：During with mono- grade of driving of HEV, brake B is combined, and clutch CL1 is combined, clutch CL2 separation, CL3 points of clutch
From；During with bis- grades of drivings of HEV, brake B separation, clutch CL1 is combined, and clutch CL2 is combined, clutch CL3 separation.Each
Under individual fixed gear, the first motor can drive or generate electricity, and the second motor driving trailing wheel, electric energy needed for the second motor can
Can be from the generating of the first motor from battery.
That is, when high speed travels, engine has two fixed gears can use, and mono- grade of HEV brake B is combined,
Clutch CL1 is combined, clutch CL2 separation, clutch CL3 separation.The fast ratio of planetary gears during engine drivingMono- grade of first motor of HEV can drive or generate electricity.Electric energy obtained by first electric power generation can be used for the second motor
Trailing wheel is driven, the four-wheel drive without the energy content of battery is realized, can also charge the battery.
Bis- grades of HEV brake B separation, clutch CL1 are combined, and clutch CL2 is combined, clutch CL3 separation.Engine
The speed of planetary gears is than being 1 during driving.Bis- grade of first motor of HEV can drive or generate electricity.Electricity obtained by first electric power generation
The second motor driving trailing wheel can be can be used for, the four-wheel drive without the energy content of battery is realized, can also charge the battery.
In the engine tandem drive stage, brake B separation, clutch CL1 separation, clutch CL2 separation, clutch
CL3 is combined, and engine and the first motor are connected, the first electric power generation, and gained electric energy is used for the second motor driving trailing wheel.
In the Brake energy recovery stage, planetary gears has two kinds of mode of operations：That is mono- grade of EV and bis- grades of EV；
During mono- grade of EV, brake B is combined, clutch CL1 separation, clutch CL2 separation, clutch CL3 separation；In bis- grades of EV, system
Dynamic device B separation, clutch CL1 separation, clutch CL2 are combined, clutch CL3 separation.First motor is applied by generating electricity to front-wheel
Braking forces thereto, the second motor apply brake force to trailing wheel by generating electricity, and electric energy obtained by the first motor and the second electric power generation is used for
Charge the battery.
That is, Brake energy recovery is realized by way of the first motor and the second electric power generation.
First motor, which carries out Brake energy recovery, has two gears can use：It is referred to as mono- grade of EV and bis- grades of EV.Mono- grade of EV
Brake B combine, clutch CL1 separation, clutch CL2 separation, the first motor output torque is by planetary gears
Fast ratio isIt is mainly used in low speed Brake energy recovery.In formula, ZR1It is planetary for first row
The gear ring number of teeth, ZS1For the planetary sun gear number of teeth of first row, ZR2For the planetary gear ring number of teeth of second row, ZS2For
The sun gear number of teeth of two-row planetary gear.
Bis- grades of EV brake B separation, clutch CL1 separation, clutch CL2 are combined, and the first motor output torque passes through
The speed of planetary gears is mainly used in high speed Brake energy recovery than being 1.
The engine stage is started in parking, clutch CL3 is combined, and engine is connected by clutch CL3 with the first motor,
Brake B is separated, clutch CL2 separation, clutch CL1 separation, and directly dragging engine with the first motor starts.
In the pure electric activation engine stage, if two drive pattern, then clutch CL3 is controlled to combine, engine passes through
Clutch CL3 is connected with the first motor, brake B separation, clutch CL2 separation, and clutch CL1 separation is straight with the first motor
Dragging engine is connect to start.No matter the first motor is driven with bis- grades of mono- grade of driving of EV or EV under 4 wheel driven pattern, all by making
The mode of clutch CL1 sliding wears, a part of moment of torsion of the first motor are used to drive front-wheel, and a part of moment of torsion is made by clutch CL1
Used in engine crankshaft, dragging engine starts.
And above-mentioned steady state operating mode and transient working pattern are based on, the control method mainly includes：
S1, starting control：The starting control includes pure electronic two and drives starting mode, pure electric four-wheel drive starting mode and hair
Motivation electronic infinite variable speed pattern starting mode；Wherein, when moment of torsion of starting to walk is less than or equal to T1, starting mould is driven using pure electronic two
Formula, i.e., only realize vehicle start with the second motor driving trailing wheel.When moment of torsion of starting to walk is more than T1 and is less than or equal to T2 with pure electronic
4 wheel driven is started to walk, now in addition to the second motor drives trailing wheel, the first motor mono- grade of driving front-wheel of EV.When starting moment of torsion is more than T2
Started to walk with Motronic control maps stepless shift mode.Wherein, T1<T2.
S2, the distribution of pure electric torque：Pure motor driving state is defaulted as two drives traveling, and trailing wheel is driven with the second motor.When
When operator demand's moment of torsion is more than T1, speed is more than V1, trailing wheel occurs to skid or needs to start engine, the first motor EV
One grade (low speed with) or bis- grades of EV (using at a high speed) drive front-wheel, and vehicle travels according to pure electric four-wheel drive pattern.Pure electronic four
Under drive pattern, the first motor and the second motor combine Map according to the optimum efficiency set offline by speed and wheel driving torque
Carry out moment of torsion distribution.When vehicle front-wheel or trailing wheel skid, the Motor torque of slip wheel is reduced, increases side of not skidding
Motor torque, the peak torque until reaching motor.
S3, engine starting control：The engine that engine is started when being divided into parking starts and hair during pure motor driving
Engine start.During parking, brake B separation, clutch CL1 is combined, and clutch CL2 separation, clutch CL3 is combined, the first electricity
Machine directly drags engine starting.When pure electronic, no matter the first motor is driven with bis- grades of mono- grade of driving of EV or EV, is all passed through
Make the mode of clutch CL1 sliding wears, a part of moment of torsion of the first motor is used to drive front-wheel, and a part of moment of torsion starts for starting
Machine.
S4, the selection of the first motor gear：First motor driving front-wheel has that two gears are optional, mono- grade of EV brake B knots
Close, clutch CL1 separation, clutch CL2 separation.Bis- grades of EV brake B separation, clutch CL1 separation, clutch CL2 knots
Close；Bis- grades of mono- grade of EV and EV are switched over by a pure electric vehicle speed threshold value, when speed is more than the pure electric vehicle speed thresholding
With bis- grades of EV driving during value, otherwise with mono- grade of driving of EV.
S5, engine gears selection：Engine has three kinds of gears optional：Electronic infinite variable speed pattern, mono- grade of HEV and HEV
Two grades.Used when speed is less than the first engine driving vehicle speed threshold value V1 or speed is more than the second engine driving vehicle speed threshold value V2
Electronic infinite variable speed pattern travels.When speed is more than or equal to the first engine driving vehicle speed threshold value V1 and starts less than or equal to second
Machine drives and driven during vehicle speed threshold value V2 with bis- grades of mono- grade of HEV or HEV.Switching between bis- grades of mono- grade of HEV and HEV is by setting
Fixed accelerator pedal and speed two parameter schedule is shifted gears, wherein, the first engine driving vehicle speed threshold value>Second
Engine driving vehicle speed threshold value.
Embodiment 3
As shown in figure 1, a kind of dynamical system of four-drive hybrid electric vehicle is present embodiments provided, the mixing of described 4 wheel driven
The planetary gears of the dynamical system of power vehicle includes planetary gears input shaft, first row planetary gear and the
Two-row planetary gear；
The engine is connected with the planetary gears input shaft, meanwhile, the first row is planetary
Gear ring is connected with the planetary planet carrier of second row, and the planetary planet carrier of the first row and second row are planetary
Gear ring is connected.The planetary sun gear of the first row is coaxially fixedly installed on the power transmission shaft；First rows of planetary
The sun gear of gear is connected by the first planetary gear and the planetary gear ring of first row.
The planetary gear ring of first row and the driving gear are connected, the driving gear with it is described driven
Gear drive connects, moreover, the driven gear is connected with the front axle differential.
The planetary gears input shaft is connected by clutch CL1 and the planetary planet carrier of first row,
So as to which when the clutch CL1 is combined, the planetary gears input shaft drives the planetary planet of first row
Frame rotates.
Also rotatably arranged with having the second sun gear S2, the planetary sun gear of second row and braking on the power transmission shaft
Device B is connected, so as to realize locked by brake B and open；The second sun gear S2 passes through the second planetary gear and
The gear ring drive connection of two-row planetary gear.
It is driven between the planetary gear ring of the first row and the planetary planet carrier of first row by clutch CL2
Connection, when the clutch CL2 is engaged, to realize that the planetary planet carrier of the first row and first row are planetary
Synchronous axial system between gear ring, and when the clutch CL2 is separated so that the planetary planet carrier of first row and first
The gear ring of rows of planetary gear separately rotates.
Embodiment 4
Present embodiments provide a kind of dynamical system of four-drive hybrid electric vehicle, described hybrid power system such as Fig. 4
Shown, its difference from Example 3 is, the planetary planet carrier of first row and the planetary gear ring phase of second row
Even, first row planetary gear and second row planetary gear share sun gear.
Planetary lever diagram and each part connected mode in embodiment 4 are shown in Fig. 5.
Embodiment 5
Present embodiments provide a kind of dynamical system of four-drive hybrid electric vehicle, described hybrid power system such as Fig. 6
Shown, its difference from Example 3 is, first row planetary gear uses the dual planetary gear of dual planetary gear, second row
Planetary gear and first row planetary gear share gear ring and planet carrier, and the wherein planetary gear of second row planetary gears is first
The long planetary gear engaged in rows of planetary gear mechanism with gear ring.
Planetary lever diagram and each part connected mode in embodiment 5 are shown in Fig. 7.
The sequencing of above example only for ease of describing, does not represent the quality of embodiment.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (8)
1. a kind of dynamical system of four-drive hybrid electric vehicle, it is characterised in that including engine, the first motor, the first inversion
Device, propons planetary reducer, the second motor, the second inverter, rear axle reductor and battery；
The battery is connected by the first inverter with first motor circuit, and passes through the second inverter and described second
Motor circuit connects；
Second motor is connected with the rear axle reductor, and the rear axle reductor is connected with rear wheel drive, the hair
Motivation and the first motor are connected with the propons planetary reducer respectively, and the propons planetary reducer is with before
Wheel drive connection；
Wherein, the propons planetary reducer has at least four rotate elements, when being total to from four rotate elements
When line chart is looked, with the rotate element of the first motor connection and the rotate element being connected by output gear with front-wheel positioned at passing through
The both sides for the rotate element that clutch CL1 is connected with engine, by the clutch CL1 rotate elements being connected with engine and with
Rotate element connected brake B is located at the both sides for the rotate element being connected by output gear with front-wheel；Pass through clutch CL1
Connected between the rotate element being connected with engine and the rotate element connected by output gear and front-wheel by clutch CL2
Connect；Engine and the first motor are connected by clutch CL3.
2. the dynamical system of four-drive hybrid electric vehicle according to claim 1, it is characterised in that the clutch CL3
For jaw clutch.
3. a kind of control method of the dynamical system of four-drive hybrid electric vehicle as claimed in claim 1, the 4 wheel driven mixing
The dynamical system of power vehicle is divided into steady state operating mode and transient working pattern；Steady state operating mode includes parking generating rank
Section, pure motor driving stage, Motronic control maps variable speed driving stage, engine fixed gear direct drive stage, engine
Tandem drive stage and Brake energy recovery stage；Transient working pattern includes parking and starts engine stage and pure electronic
The dynamic engine stage；It is characterised in that it includes：
S1, parking generate electricity：The parking controls clutch CL3 to combine when generating electricity, clutch CL2 separation, clutch CL1 separation,
Brake B is separated, and engine is directly connected with the first motor, and is driven the first motor to rotate and generated electricity；
S2, pure motor driving：Clutch CL3 and clutch CL2 separation during the pure motor driving, engine, which is in, shuts down shape
State, and have two drives and 4 wheel driven both of which optional；Under two drive patterns, brake B separation, clutch CL1 separation, clutch
CL2 is separated, and clutch CL3 separation, the first motor remains static, the second motor driving trailing wheel；Under 4 wheel driven pattern, first
Motor has that two gears are optional, and described two gears are mono- grade of EV and bis- grades of EV：In mono- grade of EV, brake B is combined, clutch
CL1 is separated, clutch CL2 separation, clutch CL3 separation；In EV2 shelves, brake B separation, clutch CL1 separation, clutch
Device CL2 is combined, clutch CL3 separation；
S3, Motronic control maps variable speed driving：During the Motronic control maps variable speed driving, brake B separation, clutch
CL1 is combined, clutch CL2 separation, clutch CL3 separation, and an engine output part passes through propons planetary gear speed-reduction
Device drives front-wheel, and a part changes into electric energy by the first electric power generation, and hybrid controller controls the first electric power generation to obtain
To electric energy be used to charge in battery or drive trailing wheel for the second motor, vehicle is in four-wheel drive state；
S4, the direct drive of engine fixed gear：During the engine fixed gear driving, engine has two fixed gears can use,
Described two fixed gears are mono- grade of HEV and bis- grades of HEV：During with mono- grade of driving of HEV, brake B is combined, and clutch CL1 is combined,
Clutch CL2 is separated, clutch CL3 separation；During with bis- grades of drivings of HEV, brake B separation, clutch CL1 is combined, clutch
CL2 is combined, clutch CL3 separation；
S5, engine tandem drive：During the engine tandem drive, brake B separation, clutch CL1 separation, clutch
CL2 is separated, and clutch CL3 is combined, the first electric power generation, and generated output is used for the second motor driving trailing wheel；
S6, Brake energy recovery：During the Brake energy recovery, reclaimed by the first motor and/or the second motor；First
Motor has two kinds of mode of operations：That is mono- grade of EV and bis- grades of EV；In mono- grade of EV, brake B is combined, clutch CL1 separation, clutch
Device CL2 is separated, clutch CL3 separation；In bis- grades of EV, brake B separation, clutch CL1 separation, clutch CL2 combines, from
Clutch CL3 is separated；First motor applies brake force to front-wheel by generating electricity, and the second motor is braked by generating electricity to apply trailing wheel
Electric energy obtained by power, the first motor and the second electric power generation is used to charge the battery；
S7, parking start engine：When the parking starts engine, brake B separation, clutch CL1 is combined, clutch
CL2 is separated, and clutch CL3 is combined, and the first motor drag engine starts；
S8, pure motor driving start engine：During pure electronic two drives traveling, brake B separation, clutch CL1 is combined, clutch
CL2 is separated, and clutch CL3 is combined, and the first motor drag engine starts；During pure electric four-wheel drive traveling, in pure motor driving
On the basis of a part of moment of torsion of the first motor is used to by way of making clutch CL1 sliding wears to drive front-wheel, a part of moment of torsion is used
In starting engine.
4. according to the method for claim 3, it is characterised in that in the engine driving, the second motor is also simultaneously sharp
Trailing wheel is driven with a part of power of battery.
5. according to the method for claim 3, it is characterised in that include pure electronic two in the starting control stage and drive starting mould
Formula, pure electric four-wheel drive starting mode and Motronic control maps stepless shift mode starting mode；Wherein, when starting moment of torsion is less than or equal to
During T1, drive pattern using pure electronic two and start to walk；When moment of torsion of starting to walk is more than T1 and is less than or equal to T2, pure electric four-wheel drive pattern is used
Starting；Started to walk when moment of torsion of starting to walk is more than T2 with Motronic control maps stepless shift mode；Wherein, T1<T2.
6. according to the method for claim 3, it is characterised in that under pure electric four-wheel drive pattern, the first motor and the second electricity
Machine combines Map according to the optimum efficiency set offline by speed and wheel driving torque and carries out moment of torsion distribution；When vehicle front-wheel or
When trailing wheel skids, the Motor torque of slip wheel is reduced, increases the Motor torque for side of not skidding.
7. according to the method for claim 3, it is characterised in that during pure electric four-wheel drive traveling mono- grade of the EV of the first motor and
Bis- grades of EV is switched over by a pure electric vehicle speed threshold value, when speed is more than the pure electric vehicle speed threshold value with bis- grades of EV
Driving, otherwise with mono- grade of driving of EV.
8. according to the method for claim 3, it is characterised in that engine has three kinds of gears optional：Electronic infinite variable speed mould
Bis- grades of formula, mono- grade of HEV and HEV；Travelled when speed is less than V1 or speed is more than V2 with electronics stepless shift mode；When speed is big
In equal to V1 and when being less than or equal to V2 with bis- grades of drivings of mono- grade of HEV or HEV；Switching between bis- grades of mono- grade of HEV and HEV passes through pre-
If the accelerator pedal and speed two parameter schedule of setting are shifted gears.
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| CN114834265A (en) * | 2022-05-13 | 2022-08-02 | 中国第一汽车股份有限公司 | Vehicle driving control method and device, vehicle and storage medium |
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