CN103978973B - A kind of double-motor hybrid power system full working scope control method - Google Patents

A kind of double-motor hybrid power system full working scope control method Download PDF

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Publication number
CN103978973B
CN103978973B CN201410250105.2A CN201410250105A CN103978973B CN 103978973 B CN103978973 B CN 103978973B CN 201410250105 A CN201410250105 A CN 201410250105A CN 103978973 B CN103978973 B CN 103978973B
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motor
double
combustion engine
internal combustion
vehicle
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CN103978973A (en
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刘永刚
解庆波
闫忠良
秦大同
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Dongfeng Huashen Motor Co Ltd
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Chongqing University
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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
    • B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B60K6/36—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 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 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 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 transmission gearings with the gears having orbital motion
    • 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
    • B60K6/42—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 the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/24—Energy storage means
    • B60W2510/242—Energy storage means for electrical energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/06—Combustion engines, Gas turbines
    • B60W2710/0666—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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/08—Electric propulsion units
    • B60W2710/083—Torque
    • 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)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The invention provides a kind of full working scope control method of double-motor hybrid power system, the controllable parallel drive for realizing two motors, so as to reduce the operating frequency of engine, engine can be adjusted by the motion of regulation planet row and be operated in the optimum interval of efficiency, simultaneously, two motors can be controlled simultaneously and reclaims braking energy, improve recovery Brake Energy dose rate.

Description

A kind of double-motor hybrid power system full working scope control method
Technical field
The present invention relates to belong to electric automobile field.
Background technology
At present, the pay attention to day by day for utilizing as people are effective and reasonable to environmental protection and the energy, with efficient, energy-conservation, The oily electric mixed double-motor hybrid vehicle of environmentally friendly vehicle has the low emission of electric motor car and internal-combustion engines vehicle because of which High-energy-density advantage, it has also become the development trend of automobile industry.
In existing control strategy, great majority are exported using internal combustion engine as subject impetus, it is impossible to ensure internal combustion engine work always Make in the optimum interval of efficiency, car load fuel consumption can not still reach Best Point.And when regenerative power is braked, in particular by list Motor braking control strategy, must allow mechanical braking to participate in when braking power is more than motor, waste energy, brake recovery Capacity usage ratio degradation.
The content of the invention
Present invention aim to address when existing motor vehicle driven by mixed power is in negative load condition, it is impossible to ensure internal combustion engine In the optimum interval of efficiency；And when regenerative power is braked, it is impossible to reclaim whole energy and energy dissipation problem occurs.
The technical scheme adopted to realize the object of the invention is a kind of such, double-motor hybrid power system full working scope Control method, it is characterised in that：Including a double-motor hybrid power system being arranged on vehicle；The bi-motor mixing is dynamic Force system includes internal combustion engine, the first motor and the second motor；The electricity that first motor and the second motor send is stored in storage In battery, the electric energy of the battery is again for using when the first motor and the second motor-driven vehicle；The internal combustion engine can drive Motor-car, it is also possible to drive first motor and the second electric power generation；
The vehicle is also equipped with for detecting the sensor of driving power, braking power size, and detects the storage The device of battery dump energy；
When vehicle is driven, double-motor hybrid system is determined according to the driving power and battery dump energy that detect System is in one of following five kinds of operating modes：Single Motor drive operating mode, bi-motor parallel drive operating mode, driving charging operating mode, internal combustion engine Operating mode, internal combustion engine and motor parallel is operated alone and drives operating mode；
When vehicle is braked, double-motor hybrid power system is determined according to the braking power and battery dump energy that detect In one of two kinds of operating modes once：Single motor reclaims braking energy, bi-motor combined recovery braking energy.
The solution have the advantages that mathematical.The method is a kind of full working scope control strategy, is capable of achieving internal combustion The cooperation of machine and two motors, so as to reduce the operating frequency of internal combustion engine.Meanwhile, two motors can be controlled simultaneously reclaims braking Energy, improves recovery Brake Energy dose rate.
Description of the drawings
The structure chart of the double-motor hybrid power system that Fig. 1 is provided for the present invention；
The flow chart of the power-control method that Fig. 2 is provided for the present invention；
During Fig. 3 is one embodiment of the present of invention, the structure chart of double-motor hybrid power system.
In figure：Internal combustion engine 1, planet carrier 2, gear ring 3,4, two grades of driving gears 5 of the first rotor, the first power transmission shaft 6, Shelves driving gear 7, double clutch 8, first clutch 9, second clutch 10, the second rotor 11, the second motor stator 12, Power output gear 13, output gear 14,15, two grades of driven gears 16 of first speed driven gear, the first motor stator 17, sun gear 18th, second driving shaft 19.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples, but should not be construed above-mentioned theme of the invention Scope is only limitted to following embodiments.Without departing from the idea case in the present invention described above, known according to ordinary skill Know and customary means, make various replacements and change, all should include within the scope of the present invention.
Embodiment 1：
The present embodiment discloses a kind of double-motor hybrid power system full working scope control method
Referring to Fig. 1, including a double-motor hybrid power system being arranged on vehicle.The double-motor hybrid system System includes internal combustion engine, the first motor and the second motor.The electricity that first motor and the second motor send is stored in battery In, the electric energy of the battery is again for using when the first motor and the second motor-driven vehicle.The internal combustion engine can drive car , it is also possible to drive first motor and the second electric power generation.
The vehicle is also equipped with for detecting the sensor of driving power, braking power size, and detects the storage The device of battery dump energy.
When vehicle is driven, double-motor hybrid system is determined according to the driving power and battery dump energy that detect System is in one of following five kinds of operating modes：Single Motor drive operating mode, bi-motor parallel drive operating mode, driving charging operating mode, internal combustion engine Operating mode, internal combustion engine and motor parallel is operated alone and drives operating mode.
When vehicle is braked, double-motor hybrid power system is determined according to the braking power and battery dump energy that detect In one of two kinds of operating modes once：Single motor reclaims braking energy, bi-motor combined recovery braking energy.
More specifically：Referring to Fig. 2, the figure is the flow chart of double-motor hybrid control strategy.
1) judge vehicle state in which；If vehicle is in negative load condition, by step 2～4) control；If car Be in on-position, then by step 5) control.
2) driving power needed for vehicle is less than the second power of motor, then be divided into two kinds of situations of 2-1 and 2-2：
If 2-1) battery SOC ＞ 30%, are operated alone vehicle by the second motor.
If 2-2) battery SOC ＜ 30%, internal-combustion engine ignition starts to drive vehicle；Now：If internal combustion engine is in most Good efficiency band, then internal combustion engine also drive the first motor or the second electric power generation；If internal combustion engine is not at optimum efficiency region, Then do not generate electricity.
3) driving power needed for vehicle is more than the second power of motor, but is less than the first motor and the second power of motor sum, Then it is divided into two kinds of situations of 3-1 and 3-2：
If 3-1) battery SOC ＞ 30%, vehicle is driven by the first motor and the second motor joint.
If 3-2) battery SOC ＜ 30%, internal-combustion engine ignition starts to drive vehicle；Now：If internal combustion engine is in most Good efficiency band, then internal combustion engine also drive the first motor or the second electric power generation；If internal combustion engine is not at optimum efficiency region, Then do not generate electricity.
4) driving power needed for vehicle is more than the first motor and the second power of motor sum, then be divided into two kinds of feelings of 4-1 and 4-2 Condition：
If 4-1) driving power needed for vehicle is subdivided into 4-1-1 less than the peak power in internal combustion engine optimum efficiency region With two kinds of situations of 4-1-2：
If 4-1-1) battery SOC=100%, started by internal-combustion engine ignition to drive vehicle, do not generated electricity；
If 4-1-2) battery SOC ＜ 100%, internal-combustion engine ignition starts to drive vehicle；Now：If at internal combustion engine In optimum efficiency region, then internal combustion engine also drives the first motor or the second electric power generation；If internal combustion engine is not at optimum efficiency Region, then do not generate electricity.
If 4-2) driving power needed for vehicle is subdivided into 4-2-1 more than the peak power in internal combustion engine optimum efficiency region With two kinds of situations of 4-2-2：
If 4-2-1) battery SOC ＞ 30%, are started to drive vehicle by internal-combustion engine ignition；Preferably, now：If interior Combustion engine is in optimum efficiency region, then internal combustion engine combines driving vehicle with the second motor；If internal combustion engine is not at optimum efficiency Region, by feedback regulation engine and the power distribution of the second motor, so which is operated in the optimum interval of efficiency.
If 4-2-2) battery SOC ＜ 30%, internal combustion engine combines driving vehicle with the second motor, and internal combustion engine also drives first Electric power generation.
If 5) peak power of the required brake force more than the second motor, the first motor and the second motor combined recovery Braking energy,
If required brake force individually reclaims braking energy less than the peak power of the second motor, the second motor.
Embodiment 2：
Referring to Fig. 3, the present embodiment discloses a kind of specific double-motor hybrid power system.
The system includes internal combustion engine 1, planetary gear system, the first motor, the second motor and double clutch 8.
The planetary gear system includes planet carrier 2, several planetary gears, gear ring 3 and sun gear 18.The internal combustion engine 1 output shaft connection planet carrier 2, the internal combustion engine 1 can drive planet carrier 2 to rotate when working, and then drive vehicle movement, The first motor and/or the second motor rotary electrification, the electricity that first motor and the second motor send can be driven to be stored in storage In battery, the electric energy of the battery is again for using during the rotor rotation acting of the first motor and the second motor.Described first is electric The rotor (i.e. the first rotor 4) of machine connects the gear ring 3.In the present embodiment, the gear ring 3 has internal tooth and external tooth.Institute The internal tooth for stating gear ring 3 is engaged with planetary gear.The external tooth of the gear ring 3 and the gear being arranged on first rotor 4 Engagement.Due to the gear ring 3 have external tooth, gear ring 3 equivalent to be also a gear.Therefore, first rotor 4 and tooth It is to rely on gear drive between circle 3.
The sun gear 18 connects one end of the power transmission shaft 6, and the other end of the power transmission shaft 6 connects the double clutch 8 input disc.I.e. described sun gear 18 is driven by power transmission shaft 6 with the input disc of double clutch 8.Second motor Rotor (i.e. the second rotor 11) connect the input disc of the double clutch 8, i.e. when the second motor works, the second motor turns Son 11 can drive the input disc spins of double clutch 8, and the input disc of double clutch 8 can also drive the second rotor 11 Rotation so that the second electric power generation.
The output end (on the input shaft being connected with first clutch 9) of the first clutch 9 of the double clutch 8 installs one Shelves driving gear 7, the output end (on the input shaft being connected with second clutch 10) of the second clutch 10 of the double clutch 8 Two grades of driving gears 5 are installed.
One grade of driving gear 7 is engaged with first speed driven gear 15.Two grades of driving gears 5 and two grades of driven gears 16 engagements.The first speed driven gear 15 and two grades of driven gears 16 are arranged on same power output shaft.The power is defeated Power output gear 13 is also equipped with shaft.
1) judge vehicle state in which；If vehicle is in negative load condition, by step 2～4) control；If car Be in on-position, then by step 5) control.
2) driving power needed for vehicle is less than the second power of motor, then be divided into two kinds of situations of 2-1 and 2-2：
If 2-1) battery SOC ＞ 30%, are operated alone vehicle by the second motor.Internal combustion engine 1 does not work, double clutch transmissions Device first clutch 9 and a combination in second clutch 10, another separates.Double clutch is driven by the second motor Input disc spins, drive vehicle.First motor is in rotating without moment of torsion.
If 2-2) battery SOC ＜ 30%, internal-combustion engine ignition starts to drive vehicle；Now：If internal combustion engine is in most A combination in good efficiency band, first clutch 9 and second clutch 10, another separate, drive first by internal combustion engine 1 Electric power generation, internal combustion engine 1 drive vehicle traveling.If internal combustion engine is not at optimum efficiency region, internal combustion engine 1 drives vehicle row Sail, do not generate electricity.
3) driving power needed for vehicle is more than the second power of motor, but is less than the first motor and the second power of motor sum, Then it is divided into two kinds of situations of 3-1 and 3-2：
If 3-1) battery SOC ＞ 30%, vehicle is driven by the first motor and the second motor joint.That is the not work of internal combustion engine 1 Make, dual clutch transmission first clutch 9 and a combination in second clutch 10, another separates.By the first motor Work with the second motor, drive the input disc spins of double clutch, drive vehicle.
If 3-2) battery SOC ＜ 30%, internal-combustion engine ignition starts to drive vehicle, first clutch 9 and the second clutch A combination, another separation in device 10.Now：If internal combustion engine is in optimum efficiency region, internal combustion engine also drives the One electric power generation；If internal combustion engine is not at optimum efficiency region, do not generate electricity.
4) driving power needed for vehicle is more than the first motor and the second power of motor sum, then be divided into two kinds of feelings of 4-1 and 4-2 Condition：
If 4-1) driving power needed for vehicle is subdivided into 4-1-1 less than the peak power in internal combustion engine optimum efficiency region With two kinds of situations of 4-1-2：
If 4-1-1) battery SOC=100%, started by internal-combustion engine ignition to drive vehicle, do not generated electricity；, first from Clutch 9 and a combination in second clutch 10, another separates (generally, now hang one to keep off).
If 4-1-2) battery SOC ＜ 100%, internal-combustion engine ignition starts to drive vehicle；Now：If at internal combustion engine In optimum efficiency region, then internal combustion engine also drives the first motor or the second electric power generation；If internal combustion engine is not at optimum efficiency Region, then do not generate electricity.
If 4-2) driving power needed for vehicle is subdivided into 4-2-1 more than the peak power in internal combustion engine optimum efficiency region With two kinds of situations of 4-2-2：
If 4-2-1) battery SOC ＞ 30%, are started to drive vehicle by internal-combustion engine ignition；Preferably, now：If interior Combustion engine is in optimum efficiency region, then internal combustion engine combines driving vehicle with the second motor；If internal combustion engine is not at optimum efficiency Region, by feedback regulation engine and the power distribution of the second motor, so which is operated in the optimum interval of efficiency.
If 4-2-2) battery SOC ＜ 30%, internal combustion engine combines driving vehicle with the second motor, and internal combustion engine also drives first Electric power generation.
If 5) peak power of the required brake force more than the second motor, the first motor and the second motor combined recovery Braking energy, i.e. double arrangement of clutch second clutches 10 are combined, and first clutch 9 is separated, and internal combustion engine 1 is motionless, the second motor and First electric power generation, reclaims braking energy；
If required brake force individually reclaims braking energy less than the peak power of the second motor, the second motor, i.e., Double arrangement of clutch second clutches 10 are combined, and first clutch 9 is separated, and, in the rotation without moment of torsion, internal combustion engine 1 is or not the first motor Dynamic, the second electric power generation reclaims braking energy.

Claims (1)

1. a kind of double-motor hybrid power system full working scope control method, it is characterised in that：It is arranged on vehicle including one Double-motor hybrid power system；The double-motor hybrid power system includes internal combustion engine, the first motor and the second motor；It is described The electricity that first motor and the second motor send is stored in battery, and the electric energy of the battery is again electric for the first motor and second Machine is used when driving vehicle；The internal combustion engine can drive vehicle, it is also possible to drive first motor and the second electric power generation；
The vehicle is also equipped with for detecting the sensor of driving power, braking power size, and detects the battery The device of dump energy；
When vehicle is driven, determined at double-motor hybrid power system according to the driving power and battery dump energy that detect In one of following five kinds of operating modes：Single Motor drive operating mode, bi-motor parallel drive operating mode, driving charging operating mode, internal combustion engine are independent Operating mode, internal combustion engine and motor parallel is driven to drive operating mode；
When vehicle is braked, determine that double-motor hybrid power system is according to the braking power and battery dump energy that detect Once one of two kinds of operating modes：Single motor reclaims braking energy, bi-motor combined recovery braking energy；
The double-motor hybrid power system include internal combustion engine (1), planetary gear system, the first motor, the second motor and it is double from Clutch (8)；The planetary gear system includes planet carrier (2), planetary gear, gear ring (3) and sun gear (18)；The internal combustion engine (1) output shaft connection planet carrier (2)；The rotor of first motor connects the gear ring (3)；Sun gear (18) connection One end of power transmission shaft (6), the other end of the power transmission shaft (6) connect the input disc of the double clutch (8)；Second motor Rotor connect the input disc of the double clutch (8)；The output end of the first clutch (9) of the double clutch (8) is installed One grade of driving gear (7), the output end of the second clutch (10) of the double clutch (8) install two grades of driving gears (5)；Institute State one grade of driving gear (7) to engage with first speed driven gear (15)；Two grades of driving gears (5) and two grades of driven gears (16) Engagement；The first speed driven gear (15) and two grades of driven gears (16) are on power output shaft.
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CN107264517B (en) * 2017-06-08 2018-11-20 深圳市海梁科技有限公司 Hybrid vehicle and its drive control method
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CN108382187B (en) * 2018-03-27 2024-03-19 中国第一汽车股份有限公司 Dual-motor hybrid power system and control method thereof
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