WO2022116787A2 - 一种双电机混合动力驱动装置及具有其的车辆 - Google Patents
一种双电机混合动力驱动装置及具有其的车辆 Download PDFInfo
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- WO2022116787A2 WO2022116787A2 PCT/CN2021/129837 CN2021129837W WO2022116787A2 WO 2022116787 A2 WO2022116787 A2 WO 2022116787A2 CN 2021129837 W CN2021129837 W CN 2021129837W WO 2022116787 A2 WO2022116787 A2 WO 2022116787A2
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- gear
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- driving gear
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- 238000011084 recovery Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 241000156302 Porcine hemagglutinating encephalomyelitis virus Species 0.000 description 6
- 239000000446 fuel Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010248 power generation Methods 0.000 description 5
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- 230000007935 neutral effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
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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 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
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/54—Transmission for changing ratio
- B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
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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 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
- B60K6/26—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 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 motors or the generators
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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 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
- B60K6/40—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 assembly or relative disposition of components
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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 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
- B60K6/44—Series-parallel type
- B60K6/442—Series-parallel switching type
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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 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
- B60K6/44—Series-parallel type
- B60K6/445—Differential gearing distribution type
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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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- 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
Definitions
- the invention relates to the field of hybrid vehicles, in particular to a dual-motor hybrid drive device and a vehicle having the same.
- a hybrid electric vehicle is a vehicle that uses a variety of energy sources, usually a conventional engine (ICE) using liquid fuel and an electric motor using electrical energy to drive the vehicle, allowing the hybrid vehicle to operate in a variety of drive modes, however, because the battery With limited capacity, the driving vehicle mainly relies on engine combustion to provide power.
- ICE conventional engine
- the hybrid transmission system is mainly based on the current mature dual-clutch transmission technology and motor control technology, the hybrid system exists.
- the R&D and manufacturing cost is high, the technology is difficult, the many parts, the complex structure, the large mass and the large volume cause inconvenience to carry, and the motor cannot charge the battery when the engine is driven.
- the purpose of the present invention is to provide a transmission scheme applied to a special hybrid transmission in view of the technical problems existing in the above-mentioned prior art, and specifically design a dual-motor hybrid drive device, which adopts a P2/P3 dual-motor hybrid special transmission.
- the dynamic performance is equivalent to that of the traditional hybrid 7-speed dual clutch, and the structure is more compact, light in weight and small in size, which is conducive to the vehicle installation, and has high transmission efficiency.
- the engine can be more accurate within the power range. It can realize ultra-low energy consumption, and the cost advantage is obvious, effectively solving the problems existing in traditional hybrid technology.
- the technical solution adopted in the present invention is to provide a dual-motor hybrid drive device, which includes a transmission, a first motor, a second motor and an engine,
- the transmission includes a transmission input shaft and a transmission device, the transmission input shaft includes an input end and an output end, and the transmission device is connected with the output end,
- the output shaft of the first motor is connected with the input end of the transmission input shaft through the first transmission assembly, and can transmit power to the vehicle wheels through the transmission device;
- the output shaft of the second motor is connected with the output end of the transmission input shaft through the second transmission assembly, and can transmit power to the vehicle wheels through the transmission device;
- the output shaft of the engine is connected to the transmission input shaft through a clutch located between the first electric machine and the engine.
- the above-mentioned dual-motor hybrid drive device adopts the engine, the first motor and the second motor as the power source of the transmission system, and is connected in parallel with the input end (P2 position) of the transmission through the first motor.
- the second motor is arranged in parallel with the motor position of the output end (P3 position) of the transmission, and the first motor and the second motor are used to adjust the torque and rotation speed, so that the engine can be more accurate in the power range It can run in a relatively high-efficiency range for a long time, thereby improving work efficiency, increasing vehicle power and reducing vehicle fuel consumption, and a switching clutch is added between the engine and the first motor, using more
- a variety of functions such as hybrid idling power generation, driving charging, series mode, parallel mode, engine direct drive mode, and energy recovery can be realized with few structural components.
- the hybrid function is complete, the structure is simple, and the manufacturing cost is low.
- the input shaft of the transmission, the output shaft of the first motor and the output shaft of the second motor are parallel, and the above three shafts are arranged in parallel, which can effectively reduce the axial size of the vehicle and make the structure more compact. , light weight and small size, which is conducive to vehicle loading, and can cover the loading layout requirements of A/B platform vehicles.
- first motor and the second motor are high-voltage motors.
- the transmission is a hybrid dedicated transmission (DHT).
- DHT hybrid dedicated transmission
- the first transmission assembly includes a first driving gear and a first driven gear
- the first driven gear is fixedly arranged on the output shaft of the first motor
- the first driving gear is fixedly arranged on the On the transmission input shaft
- the first driven gear meshes with the first driving gear.
- the transmission includes a shift assembly and an intermediate shaft
- the shift assembly includes a shift gear and a synchronizer
- the shift gear includes a shift drive gear provided on the transmission input shaft in an idling support manner , and a gear driven gear fixedly arranged on the intermediate shaft, the gear driven gear meshes with the gear driving gear
- the synchronizer is arranged on the transmission input shaft and is used for The range pinion is selectively engageable
- the intermediate shaft is connected to the transmission.
- the number of the gears is a group, including an engine gear drive gear and an engine gear driven gear, the engine gear drive gear is provided on the transmission input shaft in an idling support manner, and the engine gear driven gear is provided.
- the gear is fixedly arranged on the intermediate shaft, the engine gear driving gear is meshed with the engine gear driven gear, and the synchronizer is arranged on the transmission input shaft and is used for selectively with the engine gear driving gear engage.
- the number of the gears is two groups, including a first-speed driving gear, a first-speed driven gear, a second-speed driving gear and a second-speed driven gear, the first-speed driving gear and the second-speed driving gear are
- the idling support is arranged on the transmission input shaft, the first-speed driven gear and the second-speed driven gear are fixedly arranged on the intermediate shaft, the first-speed driven gear and the first-speed driving gear
- the second-speed driven gear meshes with the second-speed driving gear
- the synchronizer is arranged between the first-speed driving gear and the second-speed driving gear for selectively engaging with the second-speed driving gear.
- the first gear or the second gear is engaged.
- the second transmission assembly includes a second driving gear, the second driving gear is arranged on the output shaft of the second motor, and the second driving gear meshes with the gear driven gear.
- the second driving gear is fixedly arranged on the output shaft of the second motor.
- a disconnection device is provided between the second motor and the output end, and the second motor can be selectively disconnected when the high-speed engine is directly driven, so as to reduce the drag loss of the motor.
- the disengagement device is a synchronizer
- the second driving gear is arranged on the output shaft of the second motor in an idling support manner
- the disengagement device is arranged on the output shaft of the second motor and is used for Selectively engaged with the second pinion gear.
- the transmission device includes a differential final reduction gear and a differential, the differential final reduction gear is fixedly arranged on the intermediate shaft, and the differential final reduction gear passes through the differential Send power to the wheels of the car.
- the present invention also provides a vehicle comprising the above-mentioned dual-motor hybrid drive device.
- the dual-motor hybrid drive device of the present invention has the following beneficial effects:
- the two high-voltage motors are located at the positions P2 and P3 of the transmission system, respectively, and the P2 and P3 motors are used to adjust the torque and rotation speed, so that the engine can run in the high-efficiency range for a long time, thereby reducing the fuel consumption of the whole vehicle, and the structure is simple , the technology can achieve strong ability.
- a switching clutch is added between the engine and the P2 motor, the engine and the P2 motor are connected or interrupted through the clutch, and the synchronizer in the shift assembly can realize the second or first gear of the engine.
- the engine and the P2 motor pass through the clutch
- the synchronizer is disengaged and the synchronizer is in neutral, idle charging can be achieved, the battery can be charged by using the best working efficiency stage of the engine, and the P3 motor can drive the vehicle alone.
- the invention can realize various functions such as hybrid idling charging, driving charging, series mode, parallel mode, engine direct drive mode, energy recovery, etc. by using fewer structural elements, and has complete hybrid functions and obvious cost advantages.
- the present invention can adopt a one-speed or two-speed special hybrid transmission according to different vehicle platforms, and the three axes of the engine input shaft, the P2 motor shaft, and the P3 motor shaft are arranged in parallel, so that the structure is more compact, and the entire vehicle can be effectively reduced.
- Axial size so that it can cover the mounting arrangement requirements of various platform vehicles, which is conducive to the loading of the whole vehicle, and is light in weight, small in volume and low in manufacturing cost.
- the present invention can flexibly adapt to vehicle batteries of different capacities by adjusting the motor powers of the two motors, and is compatible with both PHEV and HEV.
- the power and the current of the motor controller are optimized for the system cost, and the compatibility and flexibility are better.
- FIG. 1 is a first structural schematic diagram of a dual-motor hybrid drive device in an embodiment of the present invention
- FIG. 2 is a schematic diagram of a second structure of a dual-motor hybrid drive device in an embodiment of the present invention
- FIG. 3 is a third structural schematic diagram of a dual-motor hybrid drive device in an embodiment of the present invention.
- FIG. 4 is a schematic diagram of a fourth structure of a dual-motor hybrid drive device in an embodiment of the present invention.
- the reference numerals in the figure correspond to: 100-engine, 101-engine output shaft, 102-clutch, 103-first driving gear, 104-first driven gear, 105-first motor output shaft, 106-a Gear driving gear, 1061-Engine gear driving gear, 107- Synchronizer, 108-Second gear driving gear, 109-First motor, 200-Second gear driven gear, 201-Second motor, 202-Disengagement device, 203 -2nd driving gear, 204-2nd motor output shaft, 205-1st gear driven gear, 2051-engine gear driven gear, 206-differential, 207-differential final reduction gear, 208-intermediate shaft, 209 - Transmission input shaft.
- the dual-motor hybrid drive device includes a transmission, a first motor 109, a second motor 201 and an engine 100, the transmission includes a transmission input shaft 209 and a transmission device, the transmission input shaft 209 includes an input end and an output end, the The transmission device is connected with the output end; the output shaft of the first motor 109 is connected with the input end of the transmission input shaft 209 through the first transmission assembly, and can transmit power to the vehicle wheels through the transmission device, so
- the output shaft of the second motor 201 is connected to the output end of the transmission input shaft 209 through the second transmission assembly, and can transmit power to the vehicle wheels through the transmission device; the engine output shaft 101 of the engine 100 is connected through the clutch 102 is connected to the transmission input shaft 209 , and the clutch 102 is located between the first electric machine 109 and the engine
- the two high-voltage motors are connected in parallel to each other.
- the input end (P2 position) and the output end (P3 position) of the transmission are used to adjust the torque and rotational speed to compensate and assist the engine 100, so that the engine 100 can run more accurately within the power range,
- the utility model can operate in a relatively high-efficiency range for a long time, thereby improving the work efficiency, increasing the vehicle dynamic performance and reducing the fuel consumption of the whole vehicle.
- the dynamic performance of the P2/P3 dual-motor hybrid special transmission (DHT) is equivalent to or even better than the traditional hybrid 7-speed dual-clutch 102, and the structure is more compact and simple, light in weight and small in size, which is conducive to The whole vehicle is equipped, and the manufacturing cost is low.
- the transmission input shaft 209 , the first motor output shaft 105 and the second motor output shaft 204 are parallel to each other, and the above-mentioned three-axis parallel arrangement can effectively reduce the entire vehicle axle. It has the advantages of small size, compact structure, light weight and small volume, which is conducive to the loading of the whole vehicle and can cover the loading and layout requirements of A/B platform vehicles.
- the transmission includes a shift assembly and an intermediate shaft 208, the shift assembly includes a range gear and a synchronizer 107, the range gear includes a range drive gear provided on the transmission input shaft 209 in an idling support manner , and a gear driven gear fixed on the intermediate shaft 208, the gear driven gear meshes with the gear driving gear, the synchronizer 107 is arranged on the transmission input shaft 209 and used in selective engagement with the range pinion.
- the intermediate shaft 208 is connected to the transmission device, and the transmission device includes a differential final reduction gear 207 and a differential gear 206, and the differential final reduction gear 207 is fixedly arranged on the intermediate shaft 208, so The differential final reduction gear 207 transmits power to the vehicle wheels through the differential 206 .
- two gears are set for the engine 100, that is, the number of the gears is two groups, including a first-speed driving gear 106 and a first-speed driven gear 205.
- a second-speed driving gear 108 and a second-speed driven gear 200 the first-speed driving gear 106 and the second-speed driving gear 108 are provided on the transmission input shaft 209 in an idling support manner, and the first-speed driven gear 205 and the second-speed driven gear 200 are fixedly arranged on the intermediate shaft 208, the first-speed driven gear 205 meshes with the first-speed driving gear 106, and the second-speed driven gear 200 is connected to the
- the second-speed driving gear 108 is meshed, and the synchronizer 107 is provided between the first-speed driving gear 106 and the second-speed driving gear 108 for selectively engaging with the first-speed driving gear 106 or the second-speed driving gear 106 .
- the gear pinion 108 is engaged.
- the first transmission assembly includes a first driving gear 103 and a first driven gear 104, the first driven gear 104 is fixedly arranged on the first motor output shaft 105, and the first driving gear 103 is fixedly arranged On the transmission input shaft 209 , the first driven gear 104 meshes with the first driving gear 103 .
- the power of the first motor 109 passes through the first motor output shaft 105, the first driven gear 104, the first driving gear 103, the transmission input shaft 209, the gear driving gear, the gear driven gear, the intermediate shaft 208, the differential
- the transmission final reduction gear 207 and the differential 206 transmit power to the wheels of the vehicle.
- the transmission assembly including a pair of transmission gears between the engine 100 and the first motor 109, that is, setting a speed ratio between the engine 100 and the first motor 109, the The high-efficiency intervals of the first motor 109 and the engine 100 are unified, so that the high-efficiency intervals of the first motor 109 are fully utilized, and the system work efficiency is effectively improved.
- the second transmission assembly includes a second driving gear 203 , the second driving gear 203 is arranged on the second motor output shaft 204 , and the second driving gear 203 is engaged with the second-speed driven gear 200 .
- the power of the second motor 201 is transmitted through the second motor output shaft 204, the second driving gear 203, the second-speed driven gear 200, the intermediate shaft 208, the differential final reduction gear 207 and the differential 206 to the car wheel.
- a disconnect device 202 is provided between the second motor 201 and the output end, and the second motor 201 can be selectively disconnected when the high-speed engine 100 is in direct drive, so as to reduce motor drag loss.
- the disengaging device 202 is a synchronizer
- the second driving gear 203 is provided on the second motor output shaft 204 in an idling support manner
- the disengaging device 202 is disposed on the The second motor output shaft 204 is used to selectively engage with the second driving gear 203 .
- Table 1 The control relationship between each working mode of the drive device and the control components
- the above-mentioned dual-motor hybrid drive device as shown in Figure 1 has 6 working modes, namely pure electric drive, series drive, parallel drive, engine direct drive first gear, engine direct drive second gear and braking energy recovery.
- the driving principle of the mode that is, the control relationship between the working mode and the control components, is shown in Table 1 above, where ⁇ represents the disconnected state, ⁇ represents the connected state, the P2 motor represents the first motor 109, the P3 motor represents the second motor 201, and S1 Representing the synchronizer 107 in the transmission, S2 represents the decoupling device 202 of the second electric machine 201 .
- the clutch 102 When the pure electric drive working mode is adopted, the clutch 102 is in a disconnected state, the engine 100 is not in operation, the disconnecting device 202 is in a connected state, and the P3 motor works and outputs power.
- Demand and battery discharge capacity select to work or not to work, when the P2 motor works, the synchronizer 107 is engaged with the gear drive gear, and the power of the P2 motor is driven by the transmission input shaft 209, the gear drive gear and the gear driven gear
- the power of the gear and the P3 motor are superimposed, and are transmitted to the wheels by the transmission device to jointly drive the vehicle forward.
- the P2 motor may also not work.
- the synchronizer 107 When the P2 motor is not working, the synchronizer 107 is in a disconnected state, and only the P3 motor works and outputs power to drive the vehicle alone. And since there are two motors as power sources in the pure electric drive mode, a motor with a smaller power can be selected to reduce the manufacturing cost.
- the engine 100, the P2 motor and the P3 motor all work, the clutch 102 and the synchronizer 107 are in a disconnected state, and the disconnect device 202 is in a connected state.
- the vehicle is in an idle state, the engine 100 drives the P1 motor to generate electricity, and the energy storage device is charged in the best working efficiency stage of the engine 100 to realize the idle charging of the vehicle, or the engine 100 drives the P1 motor to generate electricity And directly supply it to the P3 motor through the electrical connection, the energy storage device outputs electric energy to the P3 motor according to the control requirements, and the P3 motor provides the power required for the vehicle to move forward.
- the clutch 102, the synchronizer 107 and the disengaging device 202 are all connected, the engine 100 and the P3 motor work, and the P2 motor can operate according to the whole vehicle It needs to be in different working states. If the power of the energy storage device is sufficient and the whole vehicle has a large power output demand, the P2 motor works, and the engine 100, the P2 motor and the P3 motor jointly drive the vehicle.
- the power of the P2 motor The power of the engine 100 is superimposed by the transmission input shaft 209 , and the power of the engine 100 passes through the transmission input shaft 209 , the gear driving gear, the gear driven gear, the intermediate shaft 208 , and the differential final reduction gear 207 And the differential 206 is transmitted to the vehicle wheels, the power of the P3 motor is transmitted through the second motor output shaft 204, the second driving gear 203, the second-speed driven gear 200, the intermediate shaft 208, the differential final reduction gear 207 and the differential 206, the power is transmitted to the vehicle wheels. If the power of the energy storage device is low and the power of the engine is surplus, the P2 motor can be in a power generation state to charge the energy storage device, or directly provide the P3 motor through an electrical connection. Of course, the P2 motor can also be in a non-working state.
- the clutch 102 When the engine direct drive first gear working mode is adopted, the clutch 102 is connected, the engine 100 is working, the disengaging device 202 is disconnected, the P3 motor is not working, the synchronizer 107 is connected to the right
- the first speed driving gear 106 on the side is engaged, and the power of the engine 100 is transmitted through the transmission input shaft 209 , the first speed driving gear 106 , the first speed driven gear 205 , the intermediate shaft 208 , the differential final reduction gear 207 and the differential 206 to the wheels of the car.
- the P2 motor can be selected to work or not work according to the requirements of the operating conditions.
- the P2 motor can be in a power generation state to charge the energy storage device.
- the clutch 102 When the engine direct drive second gear working mode is adopted, the clutch 102 is connected, the engine 100 is working, the disengaging device 202 is disconnected, the P3 motor is not working, the synchronizer 107 is connected to the left
- the second-speed driving gear 108 on the side is engaged, and the power of the engine 100 passes through the transmission input shaft 209 , the second-speed driving gear 108 , the second-speed driven gear 200 , the intermediate shaft 208 , the differential final reduction gear 207 and the differential 206 to the wheels of the car.
- the P2 motor can also choose to work or not work according to the requirements of the operating conditions.
- the P2 motor can be in a power generation state to charge the energy storage device.
- the clutch 102 and the synchronizer 107 are in a disconnected state, the engine 100 and the P2 motor do not work, the disengagement device 202 is in a connected state, and only the P3 The motor works to recover the power of the wheels, and the P3 motor is in a state of generating electricity to charge the energy storage device. By recovering braking energy, the energy consumption of the whole vehicle is saved.
- the first motor 109 is connected in parallel with the input end of the transmission (P2 position, so the first motor is simply referred to as the P2 motor), and the second motor 201 is connected in parallel with the transmission The output end (P3 position. Therefore, the second motor is referred to as the P3 motor for short), and a switching clutch 102 is added between the engine 100 and the P2 motor.
- the engine 100 and the P2 motor are connected or interrupted through the clutch 102.
- the synchronizer in the shift assembly 107 can realize the second or first gear of the engine 100.
- the idle charging can be realized, and the battery can be charged by using the best working efficiency stage of the engine 100, and the P3 The motor alone can drive the vehicle.
- the engine 100 , the P2 motor, the P3 motor and the gear can be regulated through the clutch 102 , the synchronizer 107 , and the disengagement device 202 according to the requirements of the working conditions, and the hybrid idle speed can be realized by using fewer structural elements Charging, driving charging, series mode, parallel mode, engine direct drive mode, energy recovery and other functions, hybrid functions are complete, and the cost advantage is obvious.
- the drive device can also flexibly adapt to the battery of the vehicle with different capacities by adjusting the motor power of the two motors, and is compatible with both PHEV and HEV, and for models that are sensitive to the cost of the vehicle, it can be reduced by reducing the battery capacity and the motor.
- the power and the current of the motor controller are optimized for the system cost, and the compatibility and flexibility are better.
- This embodiment also provides a dual-motor hybrid drive device as shown in FIG. 2 , the structure of which is basically the same as that of the dual-motor hybrid drive device shown in FIG. 1 , except that the second motor 201 is less.
- the disengaging device 202 and the second driving gear 203 of the second transmission assembly are directly fixed on the second motor output shaft 204 .
- the above-mentioned dual-motor hybrid drive device as shown in Figure 2 has 6 working modes, namely pure electric drive, series drive, parallel drive, engine direct drive first gear, engine direct drive second gear and braking energy recovery.
- the driving principle of the mode that is, the control relationship between the working mode and the control components, is shown in Table 2 below, where ⁇ represents the disconnected state, and ⁇ represents the connected state.
- Table 2 The control relationship between each working mode of the driving device and the control components
- the disconnecting device 202 is not provided between the second motor 201 and the output terminal, that is, the second motor 201 and the output terminal are always in a connected state and will not change according to the working mode of the driving device. Besides, the relationship between each working mode and the control components in Table 2 is the same as that in Table 1, that is, the same driving mode is adopted, which will not be repeated here.
- a one-speed or two-speed dedicated hybrid transmission may be used according to different vehicle platforms.
- this embodiment also provides a dual-motor hybrid drive device as shown in FIG. 3 , the structure of which is basically the same as that of the dual-motor hybrid drive device shown in FIG. 1 , the difference is that only the engine 100 is used.
- One gear is set, that is, the number of gears is a group, including an engine gear driving gear 1061 and an engine gear driven gear 2051, and the engine gear driving gear 1061 is provided on the transmission input shaft 209 in an idling support manner On the upper side, the engine gear driven gear 2051 is fixedly arranged on the intermediate shaft 208, the engine gear driving gear 1061 meshes with the engine gear driven gear 2051, and the synchronizer 107 is arranged on the transmission input On shaft 209 and for selective engagement with the engine gear pinion 1061 .
- the above-mentioned dual-motor hybrid drive device has five working modes, namely pure electric drive, series drive, parallel drive, engine 100 direct drive gear and braking energy recovery.
- the drive principle of each working mode is to work
- the control relationship between the mode and the control component is shown in Table 3 below, where ⁇ represents the disconnected state, and ⁇ represents the connected state.
- Table 3 The control relationship between each working mode of the driving device and the control components
- the engine 100 is only set with one gear.
- the clutch 102 is in a connected state
- the engine 100 is in operation
- the disengagement device 202 is in a disconnected state
- the P3 motor is in a disconnected state.
- the synchronizer 107 is engaged with the engine gear driving gear 1061 on the right side, and the power of the engine 100 passes through the transmission input shaft 209, the engine gear driving gear 1061, the engine gear driven gear 2051, the intermediate shaft 208, the differential
- the final reduction gear 207 and the differential 206 are transmitted to the vehicle wheels.
- the P2 motor can choose to work or not work according to the requirements of the operating conditions.
- the P2 motor can be in a power generation state to charge the energy storage device.
- the gears include the engine gear driving gear 1061 and the engine gear driven gear 2051, then the second driving gear 203 of the second transmission assembly meshes with the engine gear driven gear 2051, when the P3 motor works When outputting power, the power is transmitted to the car through the second motor output shaft 204, the second driving gear 203, the engine gear driven gear 2051, the intermediate shaft 208, the differential final reduction gear 207 and the differential 206. wheel.
- This embodiment also provides a dual-motor hybrid drive device as shown in FIG. 4 , the structure of which is basically the same as that of the dual-motor hybrid drive device shown in FIG. 3 , except that the second motor 201 is missing.
- the second driving gear 203 of the second transmission assembly is directly fixed on the second motor output shaft 204, and the second driving gear 203 is in phase with the engine gear driven gear 2051. mesh.
- the above-mentioned dual-motor hybrid drive device shown in Figure 4 has 5 working modes, namely pure electric drive, series drive, parallel drive, engine direct drive and braking energy recovery.
- the driving principle of each working mode is the working mode
- the control relationship with the control components is shown in Table 4 below, where ⁇ represents the disconnected state, and ⁇ represents the connected state.
- the disconnecting device 202 is not provided between the second motor 201 and the output terminal, that is, the second motor 201 and the output terminal are always in a connected state and will not change according to the working mode of the driving device. Besides, the relationship between each working mode and the control components in Table 4 is the same as that in Table 3, that is, the same driving mode is adopted, which will not be repeated here.
- This embodiment also provides a vehicle, which includes the above-mentioned dual-motor hybrid drive device.
- the vehicle can choose to use the above-mentioned one-gear or two-gear dual-motor hybrid drive device according to its vehicle platform, and can also be flexibly adapted by adjusting the motor powers of the two motors in the dual-motor hybrid drive device.
- Vehicle batteries of different capacities are compatible with PHEVs and HEVs.
- the system cost can be optimized by reducing battery capacity, motor power, and motor controller current, effectively reducing vehicle costs. manufacturing cost.
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Abstract
本发明提供了一种双电机混合动力驱动装置,包括变速器、第一电机、第二电机和发动机,所述变速器包括输入轴和传动装置,所述输入轴包括输入端和输出端,所述传动装置与输入轴的输出端连接;所述第一电机的输出轴通过第一传动组件与输入轴的输入端连接,所述第二电机的输出轴通过第二传动组件与输入轴的输出端连接,并能够通过所述传动装置将动力传递至汽车车轮;所述发动机的输出端通过离合器与所述输入轴连接,所述离合器位于所述第一电机和所述发动机之间。本发明的混合动力驱动装置采用P2、P3双电机,使其发动机能够在功率范围内更加精确的运行并长时间运行在高效区,传递效率高,能耗低,结构紧凑,有利于整车搭载,成本优势明显。
Description
本发明涉及混合动力汽车领域,具体涉及一种双电机混合动力驱动装置及具有其的车辆。
混合动力电动汽车是一种使用多种能量来源的车辆,通常是使用液体燃料的常规发动机(ICE)和使用电能的电机驱动车辆,使得混合动力汽车可在多种驱动模式下运行,然而因为电池容量有限,驱动车辆主要依靠发动机燃烧提供动力。
现阶段的混合动力结构大都采取P2混动模式即电机安放在变速器的输入轴上,该混合动力系统可以执行发动机单独驱动、电机单独驱动2/4/6/R档、发动机和电机同时驱动2/4/6/R档、电机制动充电等操作模式,虽保持有传统车辆的驾驶乐趣,但由于该混动变速器系统主要基于目前成熟的双离合变速器技术和电机控制技术,混动系统存在研发制造成本高、技术难度大,零部件繁多、结构复杂、质量大、体积大造成搭载不便,以及发动机驱动时电机不能给电池充电等缺点。
综上所述,有必要设计一种双电机混合动力驱动装置及具有其的车辆,以解决以上传统混动技术存在的问题。
发明内容
本发明的目的是针对上述现有技术存在的技术问题,提供一种应用于混合动力专用变速器的传动方案,具体设计了一种双电机混合动力驱动装置,采用P2/P3双电机混动专用变速器的动力性能做到与传统混动7速双离合器等效,且结构相比更紧凑,重量轻、体积小,有利于整车搭载,传递效率较高,其发动机能够在功率范围内更加精确的运行,实现超低能耗,成本优势明显,有效解 决传统混动技术存在的问题。
为了解决背景技术中的技术问题,本发明采用的技术方案是:提供一种双电机混合动力驱动装置,包括变速器、第一电机、第二电机和发动机,
所述变速器包括变速器输入轴和传动装置,所述变速器输入轴包括输入端和输出端,所述传动装置与所述输出端连接,
所述第一电机的输出轴通过第一传动组件与所述变速器输入轴的输入端连接,并能够通过所述传动装置将动力传递至汽车车轮;
所述第二电机的输出轴通过第二传动组件与所述变速器输入轴的输出端连接,并能够通过所述传动装置将动力传递至汽车车轮;
所述发动机的输出轴通过离合器与所述变速器输入轴连接,所述离合器位于所述第一电机和所述发动机之间。
上述双电机混合动力驱动装置,采用所述发动机、所述第一电机和所述第二电机作为传动系统动力源,且通过所述第一电机并联于所述变速器的输入端(P2位置)、所述第二电机并联于所述变速器的输出端(P3位置)的电机位置布置,使用所述第一电机和所述第二电机调节扭矩、转速,使得所述发动机能够在功率范围内更加精确的运行,并能够长时间运行在效率比较高的区间内,从而提高了工作效率、增加了车辆动力性并降低了整车油耗,且发动机和第一电机之间加入了一个切换离合器,使用较少的结构元件即可实现混合动力怠速发电、行车充电、串联模式、并联模式、发动机直驱模式、能量回收等多种功能,混动功能全,结构简单,制造成本低。
进一步地,所述变速器输入轴、所述第一电机的输出轴和所述第二电机的输出轴相平行,采用上述三轴平行布置,能够有效减小整车轴向尺寸,构相更紧凑,重量轻、体积小,有利于整车搭载,可以覆盖A/B平台车辆的搭载布置要求。
进一步地,所述第一电机和所述第二电机为高电压电机。
进一步地,所述变速器为混合动力专用变速器(DHT)。
进一步地,所述第一传动组件包括第一主动齿轮和第一从动齿轮,所述第一从动齿轮固定设置在所述第一电机输出轴上,所述第一主动齿轮固定设置在所述变速器输入轴上,所述第一从动齿轮与所述第一主动齿轮相啮合。通过在 所述发动机和所述第一电机之间设置上述包括一对传动齿轮的传动组件,即在所述发动机和所述第一电机之间设置了速比,能够对所述第一电机和所述发动机的高效区间进行统一,从而充分利用所述第一电机的高效区间,有效提高系统工作效率。
进一步地,所述变速器包括换档组件和中间轴,所述换档组件包括档位齿轮和同步器,所述档位齿轮包括以空转支撑方式设于所述变速器输入轴上的档位主动齿轮、及固定设置在所述中间轴上的档位从动齿轮,所述档位从动齿轮与所述档位主动齿轮相啮合,所述同步器设置在所述变速器输入轴上并用于与所述档位主动齿轮选择性接合,所述中间轴与所述传动装置连接。
进一步地,所述档位齿轮数量为一组,包括发动机档主动齿轮和发动机档从动齿轮,所述发动机档主动齿轮以空转支撑方式设于所述变速器输入轴上,所述发动机档从动齿轮固定设置在所述中间轴上,所述发动机档主动齿轮与所述发动机档从动齿轮相啮合,所述同步器设置于所述变速器输入轴上并用于与所述发动机档主动齿轮选择性接合。
进一步地,所述档位齿轮数量为两组,包括一档主动齿轮、一档从动齿轮、二档主动齿轮和二档从动齿轮,所述一档主动齿轮和所述二档主动齿轮以空转支撑方式设于所述变速器输入轴上,所述一档从动齿轮和所述二档从动齿轮固定设置在所述中间轴上,所述一档从动齿轮与所述一档主动齿轮相啮合,所述二档从动齿轮与所述二档主动齿轮相啮合,所述同步器设置在所述一档主动齿轮和所述二档主动齿轮之间,用于选择性地与所述一档主动齿轮或所述二档主动齿轮接合。通过设置两个档位,优化车辆的油耗及动力性能。
进一步地,所述第二传动组件包括第二主动齿轮,所述第二主动齿轮设置在所述第二电机输出轴上,所述第二主动齿轮与所述档位从动齿轮相啮合。
进一步地,所述第二主动齿轮固定设置在所述第二电机输出轴上。
进一步地,所述第二电机和所述输出端之间设置有脱开装置,可在高速发动机直驱时选择脱开所述第二电机,以减小电机拖曳损耗。
进一步地,所述脱开装置为同步器,所述第二主动齿轮以空转支撑方式设于所述第二电机输出轴上,所述脱开装置设置在所述第二电机输出轴上并用于与所述第二主动齿轮选择性接合。
进一步地,所述传动装置包括差速器主减速齿轮和差速器,所述差速器主减速齿轮固定设置在所述中间轴上,所述差速器主减速齿轮通过所述差速器将动力传递至汽车车轮。
本发明还提供了一种车辆,所述车辆包括上述的双电机混合动力驱动装置。
采用上述技术方案,本发明所述的双电机混合动力驱动装置具有如下有益效果:
(1)本发明通过将两个高电压电机分别位于传动系统的P2和P3位置,使用P2和P3电机调节扭矩、转速,使得发动机可常时间运行在高效区间,从而降低整车油耗,结构简单,工艺可实现能力强。
(2)本发明在发动机和P2电机之间加入了切换离合器,发动机和P2电机通过离合器连接或中断,换挡组件中的同步器可实现发动机两档或者一档,当发动机和P2电机通过离合器脱开、所述同步器空挡时,可以实现怠速充电,利用发动机最佳工作效率阶段对蓄电池充电,且P3电机可以单独驱动车辆。本发明使用较少的结构元件即可实现混合动力怠速充电、行车充电、串联模式、并联模式、发动机直驱模式、能量回收等多种功能,混动功能全,成本优势明显。
(3)本发明可根据不同整车平台采用一速或两速的混动专用变速器,且发动机输入轴、P2电机轴、P3电机轴三轴平行布置,结构更紧凑,能够有效减小整车轴向尺寸,从而可以覆盖多种平台车辆搭载布置要求,有利于整车搭载,且重量轻,体积小,制造成本低。
(4)本发明可以通过调整两个电机的电机功率灵活适配不同容量的整车电池,对于PHEV、HEV都可有兼容,而对于整车成本敏感的车型,可以通过减小电池容量、电机功率、电机控制器电流对系统成本做到最优,兼容性、灵活性较好。
为了更清楚地说明本发明的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其它附图。
图1是本发明实施例中双电机混合动力驱动装置的第一种结构示意图;
图2是本发明实施例中双电机混合动力驱动装置的第二种结构示意图;
图3是本发明实施例中双电机混合动力驱动装置的第三种结构示意图;
图4是本发明实施例中双电机混合动力驱动装置的第四种结构示意图;
其中,图中附图标记对应为:100-发动机,101-发动机输出轴,102-离合器,103-第一主动齿轮,104-第一从动齿轮,105-第一电机输出轴,106-一档主动齿轮,1061-发动机档主动齿轮,107-同步器,108-二档主动齿轮,109-第一电机,200-二档从动齿轮,201-第二电机,202-脱开装置,203-第二主动齿轮,204-第二电机输出轴,205-一档从动齿轮,2051-发动机档从动齿轮,206-差速器,207-差速器主减速齿轮,208-中间轴,209-变速器输入轴。
下面将结合附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动的前提下所获得的所有其他实施例,都属于本发明保护的范围。
实施例:
本实施例提供了一种应用于混合动力专用变速器的传动方案,具体设计了一种双电机混合动力驱动装置,采用发动机和两个高电压电机作为传动系统动力源,如图1所示,所述双电机混合动力驱动装置包括变速器、第一电机109、第二电机201和发动机100,所述变速器包括变速器输入轴209和传动装置,所述变速器输入轴209包括输入端和输出端,所述传动装置与所述输出端连接;所述第一电机109的输出轴通过第一传动组件与所述变速器输入轴209的输入端连接,并能够通过所述传动装置将动力传递至汽车车轮,所述第二电机201的输出轴通过第二传动组件与所述变速器输入轴209的输出端连接,并能够通过所述传动装置将动力传递至汽车车轮;所述发动机100的发动机输出轴101通过离合器102与所述变速器输入轴209连接,所述离合器102位于所述第一电机109和所述发动机100之间。
本实施例的所述双电机混合动力驱动装置,针对目前P2.5双离合混动变速 器的电机不能驱动所有档位从而不满足动力性和经济性要求,通过将两个高压电机分别并联于所述变速器的输入端(P2位置)和输出端(P3位置),使用上述两个电机调节扭矩、转速,对发动机100进行补偿、助力,使得所述发动机100能够在功率范围内更加精确的运行,并能够长时间运行在效率比较高的区间内,从而提高了工作效率、增加了车辆动力性能并降低了整车油耗,结构简单,工艺可实现能力强。采用P2/P3双电机混动专用变速器(DHT)的动力性能做到与传统混动7速双离合器102等效甚至更优,且结构相比更紧凑、简单,重量轻、体积小,有利于整车搭载,制造成本低。
较佳地,本实施例中,所述变速器输入轴209、所述第一电机输出轴105和所述第二电机输出轴204相平行,采用上述三轴平行布置,能够有效减小整车轴向尺寸,结构更紧凑,重量轻、体积小,有利于整车搭载,可以覆盖A/B平台车辆的搭载布置要求。
所述变速器包括换档组件和中间轴208,所述换档组件包括档位齿轮和同步器107,所述档位齿轮包括以空转支撑方式设于所述变速器输入轴209上的档位主动齿轮、及固定设置在所述中间轴208上的档位从动齿轮,所述档位从动齿轮与所述档位主动齿轮相啮合,所述同步器107设置在所述变速器输入轴209上并用于与所述档位主动齿轮选择性接合。所述中间轴208与所述传动装置连接,所述传动装置包括差速器主减速齿轮207和差速器206,所述差速器主减速齿轮207固定设置在所述中间轴208上,所述差速器主减速齿轮207通过所述差速器206将动力传递至汽车车轮。
较佳地,本实施例为了优化车辆的油耗及动力性能,为发动机100设置了两个档位,即所述档位齿轮数量为两组,包括一档主动齿轮106、一档从动齿轮205、二档主动齿轮108和二档从动齿轮200,所述一档主动齿轮106和所述二档主动齿轮108以空转支撑方式设于所述变速器输入轴209上,所述一档从动齿轮205和所述二档从动齿轮200固定设置在所述中间轴208上,所述一档从动齿轮205与所述一档主动齿轮106相啮合,所述二档从动齿轮200与所述二档主动齿轮108相啮合,所述同步器107设置在所述一档主动齿轮106和所述二档主动齿轮108之间,用于选择性地与所述一档主动齿轮106或所述二档主动齿轮108接合。
所述第一传动组件包括第一主动齿轮103和第一从动齿轮104,所述第一从动齿轮104固定设置在所述第一电机输出轴105上,所述第一主动齿轮103固定设置在所述变速器输入轴209上,所述第一从动齿轮104与所述第一主动齿轮103相啮合。所述第一电机109的动力经第一电机输出轴105、第一从动齿轮104、第一主动齿轮103、变速器输入轴209、档位主动齿轮、档位从动齿轮、中间轴208、差速器主减速齿轮207及差速器206,将动力传递至汽车车轮。通过在所述发动机100和所述第一电机109之间设置上述包括一对传动齿轮的传动组件,即在所述发动机100和所述第一电机109之间设置了速比,能够对所述第一电机109和所述发动机100的高效区间进行统一,从而充分利用所述第一电机109的高效区间,有效提高系统工作效率。
所述第二传动组件包括第二主动齿轮203,所述第二主动齿轮203设置在所述第二电机输出轴204上,所述第二主动齿轮203与所述二档从动齿轮200相啮合。所述第二电机201的动力经第二电机输出轴204、第二主动齿轮203、二档从动齿轮200、中间轴208、差速器主减速齿轮207及差速器206,将动力传递至汽车车轮。
较佳地,所述第二电机201和所述输出端之间设置有脱开装置202,可在高速发动机100直驱时选择脱开所述第二电机201,以减小电机拖曳损耗。本实施例中,所述所述脱开装置202为同步器,所述第二主动齿轮203以空转支撑方式设于所述第二电机输出轴204上,所述脱开装置202设置在所述第二电机输出轴204上并用于与所述第二主动齿轮203选择性接合。
表1驱动装置各工作模式与控制部件之间的控制关系
如图1所示的上述双电机混合动力驱动装置具有6种工作模式,分别为纯 电驱动、串联驱动、并联驱动、发动机直驱一档、发动机直驱二档和制动能量回收,各工作模式的驱动原理即工作模式与控制部件之间的控制关系如上表1所示,其中×表示断开状态,√表示连接状态,P2电机代表第一电机109,P3电机代表第二电机201,S1代表变速器中的所述同步器107,S2代表第二电机201的所述脱开装置202。
当采用纯电驱动工作模式时,所述离合器102处于断开状态,所述发动机100不工作,脱开装置202处于连接状态,P3电机工作并输出动力,此时,P2电机可根据整车功率需求和电池放电能力选择工作或不工作,当P2电机工作时,所述同步器107与档位主动齿轮接合,所述P2电机的动力通过变速器输入轴209、档位主动齿轮及档位从动齿轮与P3电机的动力叠加,由传动装置传递至车轮,共同驱动车辆前进。较佳地,该工作模式下,所述P2电机也可以不工作,当P2电机不工作时,所述同步器107处于断开状态,仅由P3电机工作并输出动力,单独驱动车辆。且由于在纯电驱动模式下有两个电机作为动力源,因而可选择功率较小的电机,降低制造成本。
当采用串联驱动工作模式时,所述发动机100、所述P2电机和所述P3电机均工作,所述离合器102和所述同步器107处于断开状态,脱开装置202处于连接状态,此时车辆处于怠速状态,所述发动机100驱动所述P1电机发电,利用所述发动机100的最佳工作效率阶段为储能装置充电,实现车辆的怠速充电,或所述发动机100驱动所述P1电机发电并直接通过电气连线提供给所述P3电机,所述储能装置根据控制需求输出电能给所述P3电机,所述P3电机为车辆提供前进所需动力。
当采用并联驱动工作模式时,所述离合器102、所述同步器107和所述脱开装置202均处于连接状态,所述发动机100和所述P3电机工作,所述P2电机可根据整车运行需要处于不同的工作状态,如果储能装置电量充足,且整车有较大动力输出需求,所述P2电机工作,则由发动机100、P2电机和P3电机共同驱动车辆,所述P2电机的动力通过所述变速器输入轴209与所述发动机100的动力叠加,所述发动机100的动力经变速器输入轴209、档位主动齿轮、档位从动齿轮、中间轴208、差速器主减速齿轮207及差速器206传递至汽车车轮,P3电机的动力经第二电机输出轴204、第二主动齿轮203、二档从动齿轮200、 中间轴208、差速器主减速齿轮207及差速器206,将动力传递至汽车车轮。如果储能装置电量较低,发动机的动力有富余,此时所述P2电机可处于发电状态为储能装置充电,或直接通过电气连线提供给所述P3电机。当然,所述P2电机也可以处于非工作状态。
当采用发动机直驱一档工作模式时,所述离合器102处于连接状态,所述发动机100工作,所述脱开装置202处于断开状态,所述P3电机不工作,所述同步器107与右侧的一档主动齿轮106接合,所述发动机100的动力经变速器输入轴209、一档主动齿轮106、一档从动齿轮205、中间轴208、差速器主减速齿轮207及差速器206传递至汽车车轮。此时,所述P2电机可根据运行工况需求选择工作或不工作,当所述发动机100的动力有富余,所述P2电机可处于发电状态,给储能装置充电。
当采用发动机直驱二档工作模式时,所述离合器102处于连接状态,所述发动机100工作,所述脱开装置202处于断开状态,所述P3电机不工作,所述同步器107与左侧的二档主动齿轮108接合,所述发动机100的动力经变速器输入轴209、二档主动齿轮108、二档从动齿轮200、中间轴208、差速器主减速齿轮207及差速器206传递至汽车车轮。此时,所述P2电机也可根据运行工况需求选择工作或不工作,当所述发动机100的动力有富余,所述P2电机可处于发电状态,给储能装置充电。
当采用制动能量工作模式时,所述离合器102、所述同步器107处于断开状态,所述发动机100和所述P2电机不工作,所述脱开装置202处于连接状态,仅所述P3电机工作,回收车轮的动力,所述P3电机处于发电状态,给储能装置充电。通过回收制动能量,以节省整车能耗。
本实施例的所述双电机混合动力驱动装置,将第一电机109并联于所述变速器的输入端(P2位置,故第一电机简称为P2电机),第二电机201并联于所述变速器的输出端(P3位置.故第二电机简称为P3电机),并在发动机100和P2电机之间加入了切换离合器102,发动机100和P2电机通过离合器102连接或中断,换挡组件中的同步器107可实现发动机100两档或者一档,当发动机100和P2电机通过离合器102脱开、所述同步器107空挡时,可以实现怠速充电,利用发动机100最佳工作效率阶段对蓄电池充电,且P3电机可以单独驱动 车辆。采用上述结构布置,可根据工况需求,通过离合器102、同步器107、脱开装置202对发动机100、P2电机、P3电机和档位进行调控,使用较少的结构元件即可实现混合动力怠速充电、行车充电、串联模式、并联模式、发动机直驱模式、能量回收等多种功能,混动功能全,成本优势明显。所述驱动装置还可以通过调整两个电机的电机功率灵活适配不同容量的整车电池,对于PHEV、HEV都可有兼容,而对于整车成本敏感的车型,可以通过减小电池容量、电机功率、电机控制器电流对系统成本做到最优,兼容性、灵活性较好。
本实施例还提供了如图2所示的一种双电机混合动力驱动装置,其结构与图1所示的上述双电机混合动力驱动装置基本相同,区别在于,所述第二电机201少了所述脱开装置202,所述第二传动组件的第二主动齿轮203直接固定设置在所述第二电机输出轴204上。
如图2所示的上述双电机混合动力驱动装置具有6种工作模式,分别为纯电驱动、串联驱动、并联驱动、发动机直驱一档、发动机直驱二档和制动能量回收,各工作模式的驱动原理即工作模式与控制部件之间的控制关系如下表2所示,其中,×表示断开状态,√表示连接状态。
表2驱动装置各工作模式与控制部件之间的控制关系
所述第二电机201与所述输出端之间未设置脱开装置202,即所述第二电机201与所述输出端一直保持连接状态,不会根据驱动装置的工作模式而进行改变。除此之外,表2中各工作模式与控制部件之间的关系与表1中的一致,即采用相同的驱动方式,在此不再赘述。
在可能的实施方式中,可以根据不同整车平台采用一速或两速的混动专用变速器。较佳地,本实施例还提供了如图3所示的一种双电机混合动力驱动装置,其结构与图1所示的上述双电机混合动力驱动装置基本相同,区别在于, 仅为发动机100设置了一个档位,即所述档位齿轮数量为一组,包括发动机档主动齿轮1061和发动机档从动齿轮2051,所述发动机档主动齿轮1061以空转支撑方式设于所述变速器输入轴209上,所述发动机档从动齿轮2051固定设置在所述中间轴208上,所述发动机档主动齿轮1061与所述发动机档从动齿轮2051相啮合,所述同步器107设置于所述变速器输入轴209上并用于与所述发动机档主动齿轮1061选择性接合。
如图3所示的上述双电机混合动力驱动装置具有5种工作模式,分别为纯电驱动、串联驱动、并联驱动、发动机100直驱档和制动能量回收,各工作模式的驱动原理即工作模式与控制部件之间的控制关系如下表3所示,其中,×表示断开状态,√表示连接状态。
表3驱动装置各工作模式与控制部件之间的控制关系
所述发动机100只设置了一个档位,当采用发动机直驱档工作模式时,所述离合器102处于连接状态,所述发动机100工作,所述脱开装置202处于断开状态,所述P3电机不工作,所述同步器107与右侧的发动机档主动齿轮1061接合,所述发动机100的动力经变速器输入轴209、发动机档主动齿轮1061、发动机档从动齿轮2051、中间轴208、差速器主减速齿轮207及差速器206传递至汽车车轮。此时,所述P2电机可根据运行工况需求选择工作或不工作,当所述发动机100的动力有富余,所述P2电机可处于发电状态给储能装置充电。
所述档位齿轮包括发动机档主动齿轮1061和发动机档从动齿轮2051,则所述第二传动组件的第二主动齿轮203与所述发动机档从动齿轮2051相啮合,当所述P3电机工作并输出动力时,其动力经第二电机输出轴204、第二主动齿轮203、发动机档从动齿轮2051、中间轴208、差速器主减速齿轮207及差速器206, 将动力传递至汽车车轮。
除此之外,表3中的纯电驱动、串联驱动、并联驱动和制动能量回收工作模式与控制部件之间的关系均与表1中的一致,即采用相同的驱动方式,在此不再赘述。
本实施例还提供了如图4所示的一种双电机混合动力驱动装置,其结构与图3所示的上述双电机混合动力驱动装置基本相同,区别在于,所述第二电机201少了所述脱开装置202,所述第二传动组件的第二主动齿轮203直接固定设置在所述第二电机输出轴204上,所述第二主动齿轮203与所述发动机档从动齿轮2051相啮合。
如图4所示的上述双电机混合动力驱动装置具有5种工作模式,分别为纯电驱动、串联驱动、并联驱动、发动机直驱档和制动能量回收,各工作模式的驱动原理即工作模式与控制部件之间的控制关系如下表4所示,其中,×表示断开状态,√表示连接状态。
表4驱动装置各工作模式与控制部件之间的控制关系
所述第二电机201与所述输出端之间未设置脱开装置202,即所述第二电机201与所述输出端一直保持连接状态,不会根据驱动装置的工作模式而进行改变。除此之外,表4中各工作模式与控制部件之间的关系与表3中的一致,即采用相同的驱动方式,在此不再赘述。
本实施例还提供了一种车辆,所述车辆包括上述的双电机混合动力驱动装置。所述车辆可以根据其整车平台选择采用上述一个档位或两个档位的双电机混合动力驱动装置,还可以通过调整所述双电机混合动力驱动装置中两个电机的电机功率灵活适配不同容量的整车电池,对于PHEV、HEV都可以兼容,而对于整车成本敏感的车型,可以通过减小电池容量、电机功率、电机控制器电 流对系统成本做到最优,有效降低整车制造成本。
以上所揭露的仅为本发明的几种较佳实施例而已,当然不能以此来限定本发明之权利范围,因此依本发明权利要求所作的等同变化,仍属本发明所涵盖的范围。
Claims (10)
- 一种双电机混合动力驱动装置,其特征在于:包括变速器、第一电机(109)、第二电机(201)和发动机(100),所述变速器包括变速器输入轴(209)和传动装置,所述变速器输入轴(209)包括输入端和输出端,所述传动装置与所述输出端连接;所述第一电机(109)的输出轴通过第一传动组件与所述变速器输入轴(209)的输入端连接,并能够通过所述传动装置将动力传递至汽车车轮;所述第二电机(201)的输出轴通过第二传动组件与所述变速器输入轴(209)的输出端连接,并能够通过所述传动装置将动力传递至汽车车轮;所述发动机(100)的输出轴通过离合器(102)与所述变速器输入轴(209)连接,所述离合器(102)位于所述第一电机(109)和所述发动机(100)之间。
- 根据权利要求1所述的双电机混合动力驱动装置,其特征在于:所述变速器输入轴(209)、所述第一电机(109)的输出轴和所述第二电机(201)的输出轴相平行。
- 根据权利要求1所述的双电机混合动力驱动装置,其特征在于:所述第一传动组件包括第一主动齿轮(103)和第一从动齿轮(104),所述第一从动齿轮(104)固定设置在所述第一电机(109)的输出轴上,所述第一主动齿轮(103)固定设置在所述变速器输入轴(209)上,所述第一从动齿轮(104)与所述第一主动齿轮(103)相啮合。
- 根据权利要求1所述的双电机混合动力驱动装置,其特征在于:所述第二电机(201)和所述输出端之间设置有脱开装置(202)。
- 根据权利要求1所述的双电机混合动力驱动装置,其特征在于:所述变速器包括换档组件和中间轴(208),所述换档组件包括档位齿轮和同步器(107),所述档位齿轮包括以空转支撑方式设于所述变速器输入轴(209)上的档位主动齿轮、及固定设置在所述中间轴(208)上的档位从动齿轮,所述档位从动齿轮 与所述档位主动齿轮相啮合,所述同步器(107)设置在所述变速器输入轴(209)上并用于与所述档位主动齿轮选择性接合,所述中间轴(208)与所述传动装置连接以通过所述传动装置将动力传递至汽车车轮。
- 根据权利要求5所述的双电机混合动力驱动装置,其特征在于:所述档位齿轮数量为一组,包括发动机档主动齿轮(1061)和发动机档从动齿轮(2051),所述发动机档主动齿轮(1061)以空转支撑方式设于所述变速器输入轴(209)上,所述发动机档从动齿轮(2051)固定设置在所述中间轴(208)上,所述发动机档主动齿轮(1061)与所述发动机档从动齿轮(2051)相啮合,所述同步器(107)设置于所述变速器输入轴(209)上并用于与所述发动机档主动齿轮(1061)选择性接合。
- 根据权利要求5所述的双电机混合动力驱动装置,其特征在于:所述档位齿轮数量为两组,包括一档主动齿轮(106)、一档从动齿轮(205)、二档主动齿轮(108)和二档从动齿轮(200),所述一档主动齿轮(106)和所述二档主动齿轮(108)以空转支撑方式设于所述变速器输入轴(209)上,所述一档从动齿轮(205)和所述二档从动齿轮(200)固定设置在所述中间轴(208)上,所述一档从动齿轮(205)与所述一档主动齿轮(106)相啮合,所述二档从动齿轮(200)与所述二档主动齿轮(108)相啮合,所述同步器(107)设置在所述一档主动齿轮(106)和所述二档主动齿轮(108)之间,用于选择性地与所述一档主动齿轮(106)或所述二档主动齿轮(108)接合。
- 根据权利要求5所述的双电机混合动力驱动装置,其特征在于:所述第二传动组件包括第二主动齿轮(203),所述第二主动齿轮(203)设置在所述第二电机(201)的输出轴上,所述第二主动齿轮(203)与所述档位从动齿轮相啮合。
- 根据权利要求5所述的双电机混合动力驱动装置,其特征在于:所述传动装置包括差速器主减速齿轮(207)和差速器(206),所述差速器主减速齿轮 (207)固定设置在所述中间轴(208)上,所述差速器主减速齿轮(207)通过所述差速器(206)将动力传递至汽车车轮。
- 一种车辆,其特征在于:所述车辆包括上述权利要求1-9中任意一项所述的双电机混合动力驱动装置。
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