WO2018228273A1 - 一种混联式混合动力系统及包括该混合动力系统的车辆 - Google Patents

一种混联式混合动力系统及包括该混合动力系统的车辆 Download PDF

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Publication number
WO2018228273A1
WO2018228273A1 PCT/CN2018/090341 CN2018090341W WO2018228273A1 WO 2018228273 A1 WO2018228273 A1 WO 2018228273A1 CN 2018090341 W CN2018090341 W CN 2018090341W WO 2018228273 A1 WO2018228273 A1 WO 2018228273A1
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Prior art keywords
motor
engine
isg
output shaft
hybrid
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PCT/CN2018/090341
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English (en)
French (fr)
Inventor
王富生
陈慧勇
王印束
王兴
刘小伟
李建锋
吴胜涛
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郑州宇通客车股份有限公司
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Priority to EP18818405.5A priority Critical patent/EP3640068A4/en
Publication of WO2018228273A1 publication Critical patent/WO2018228273A1/zh

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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
    • B60K6/36—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
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    • 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
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    • 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
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    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
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    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K2006/381—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches characterized by driveline brakes
    • 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
    • B60K2006/4833—Step up or reduction gearing driving generator, e.g. to operate generator in most efficient speed range
    • B60K2006/4841—Step up or reduction gearing driving generator, e.g. to operate generator in most efficient speed range the gear provides shifting between multiple ratios
    • 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

Definitions

  • the present invention relates to a hybrid hybrid power system and a vehicle including the same.
  • Hybrid hybrid systems offer tremendous performance advantages over series hybrid systems and parallel hybrid systems.
  • the current hybrid power system mainly uses a planetary mechanism as a power split device.
  • An invention patent entitled Application Publication No. CN106114185A on November 16, 2016 discloses a hybrid coupling transmission device comprising a planetary row having three power inputs And a power output end, the three power input ends are a sun gear input end, a ring gear input end and a carrier input end, and a power output shaft is connected to the power output end.
  • the power system further includes an engine, a first motor and a second motor respectively connected to the three power input terminals, wherein one of the first motor and the second motor is a drive assist motor, and the other is a drive motor, the engine output shaft
  • the first motor output shaft and the second motor output shaft are arranged side by side, and a brake is arranged between the engine output shaft and the planetary row, and between the transmission auxiliary motor output shaft and the planetary row.
  • switching between different operating modes can be achieved by controlling the on and off of the first motor, the second motor, and the engine.
  • the power output of the power system is provided by the drive motor; for example, in the hybrid mode, the engine and the drive motor are both working, and the power output of the power system is The drive motor and the engine are provided together; as in the engine drive mode, the engine directly drives the vehicle in this mode.
  • the driving motor works to power the power system
  • the torque value of the driving motor input to the planetary row is a certain value, in order to improve the planetary output.
  • the torque at the end requires a drive motor with a large output torque, which increases the cost of the drive motor.
  • the ratio of the rotational speed between the drive motor and the planetary output shaft is constant, and the torque ratio is also constant, and the drive motor cannot be adapted.
  • the technical solution of the hybrid hybrid system of the present invention is: a hybrid hybrid system including a planetary row, the planetary row has three power input ends and one power output end, and the hybrid power system further includes The engine, the first motor and the second motor respectively connected to the three power input ends, the engine output shaft, the first motor output shaft and the second motor output shaft are arranged in different axes, and the hybrid system includes the engine The corresponding power input end performs a locked engine lock mechanism, and at least one of the first motor and the second motor is provided with a gearbox between the power input ends corresponding to the planetary row.
  • the first motor is an ISG motor
  • the second motor is a main drive motor
  • the gearbox is disposed between the main drive motor and a corresponding power input end.
  • the output shaft of the ISG motor is coupled to the corresponding power input through the ISG motor gear.
  • the hybrid system also includes an ISG motor lock mechanism that locks the ISG motor output shaft or the ISG motor gear or the corresponding power input.
  • the engine output shaft, the first motor output shaft and the second motor output shaft are arranged side by side, the first motor and the second motor are respectively disposed on two sides of the engine output shaft, and the engine, the first motor and the second motor are located in the planetary row The same side.
  • the hybrid system includes a mount on which the engine, the first motor, the second motor, the planetary row, and the gearbox are integrally mounted.
  • the hybrid system has the following working modes: 1. Pure electric drive mode 1: The engine does not start, the ISG motor does not work, the engine lock mechanism is locked, the ISG motor lock mechanism is released, the main drive motor works, and the power passes through the main drive motor. The output shaft is transmitted to the gearbox to reduce the torque and drive the vehicle. Second, the pure electric drive mode 2: the engine does not start, the transmission is in neutral, the main drive motor does not work, the engine lock mechanism is locked, and the ISG motor lock mechanism Release, ISG motor works, ISG motor drives the vehicle to drive; Third, the hybrid drive mode: the engine lock mechanism and the ISG motor lock mechanism are released, the engine works, the ISG motor adjusts the engine speed and torque, and the drive motor is based on the vehicle demand.
  • the engine direct drive mode the engine lock mechanism is released, the ISG motor lock mechanism is locked, the engine works, the ISG motor does not work, and the main drive motor determines whether the work is assisted according to the vehicle demand;
  • Dynamic energy recovery mode the engine does not work, the ISG motor does not work, the main drive motor provides braking force, root Different power requirements made, in different gear transmission, main drive motor becomes the power generation state, the planetary drive motor drives the main discharge power.
  • the technical solution of the vehicle of the invention is: a vehicle comprising a hybrid hybrid system, the hybrid system comprising a planetary row, the planetary row having three power inputs and a power output, the hybrid system further comprising three and three respectively
  • the power input end is corresponding to the engine connected to the transmission, the first motor and the second motor, and the engine output shaft, the first motor output shaft and the second motor output shaft are arranged in different axes, and the hybrid system includes power input corresponding to the engine.
  • the engine locking mechanism is configured to lock, and at least one of the first motor and the second motor is provided with a gearbox between the power input end corresponding to the planetary row.
  • the first motor is an ISG motor
  • the second motor is a main drive motor
  • the gearbox is disposed between the main drive motor and a corresponding power input end.
  • the output shaft of the ISG motor is coupled to the corresponding power input through the ISG motor gear.
  • the hybrid system also includes an ISG motor lock mechanism that locks the ISG motor output shaft or the ISG motor gear or the corresponding power input.
  • the engine output shaft, the first motor output shaft and the second motor output shaft are arranged side by side, the first motor and the second motor are respectively disposed on two sides of the engine output shaft, and the engine, the first motor and the second motor are located in the planetary row The same side.
  • the hybrid system includes a mount on which the engine, the first motor, the second motor, the planetary row, and the gearbox are integrally mounted.
  • the hybrid system has the following working modes: 1. Pure electric drive mode 1: The engine does not start, the ISG motor does not work, the engine lock mechanism is locked, the ISG motor lock mechanism is released, the main drive motor works, and the power passes through the main drive motor. The output shaft is transmitted to the gearbox to reduce the torque and drive the vehicle. Second, the pure electric drive mode 2: the engine does not start, the transmission is in neutral, the main drive motor does not work, the engine lock mechanism is locked, and the ISG motor lock mechanism Release, ISG motor works, ISG motor drives the vehicle to drive; Third, the hybrid drive mode: the engine lock mechanism and the ISG motor lock mechanism are released, the engine works, the ISG motor adjusts the engine speed and torque, and the drive motor is based on the vehicle demand.
  • the engine direct drive mode the engine lock mechanism is released, the ISG motor lock mechanism is locked, the engine works, the ISG motor does not work, and the main drive motor determines whether the work is assisted according to the vehicle requirements;
  • Dynamic energy recovery mode the engine does not work, the ISG motor does not work, the main drive motor provides braking force, root Different power requirements made, in different gear transmission, main drive motor becomes the power generation state, the planetary drive motor drives the main discharge power.
  • the utility model has the beneficial effects that the hybrid hybrid power system provided by the invention has a gearbox between the motor and the corresponding power input end of the planetary row, and the gearbox can change the high speed of the motor to a low speed, and the motor Low torque becomes high torque, increasing the torque input from the motor to the planetary platoon.
  • the gearbox can be placed in the neutral position, so that the corresponding motor does not increase the load of the power system.
  • the engine lock mechanism can control whether or not the planetary power input end of the engine rotates.
  • the engine lock mechanism When the hybrid system of the present invention is in the pure electric mode, when one of the motors is a drive motor, the engine lock mechanism is locked, the engine does not rotate, the energy loss is reduced, and the drive motor is slowed down by the gearbox. Drive the vehicle to drive. In the direct engine drive mode, the engine lock mechanism is opened. When the engine output torque is small, the motor drives the vehicle through the gearbox. The engine output torque is just enough for the vehicle to run, the motor does not work, and when the engine output torque is large, the motor become a generator and store energy in the power supply.
  • the gearbox not only functions to decelerate and increase the torque, but also can be changed according to the actual running condition of the vehicle to adapt to the running of the vehicle.
  • FIG. 1 is a schematic view of an embodiment of a vehicle of the present invention.
  • 1 is the engine
  • 2 is the torque damper
  • 3 is the first locking mechanism
  • 4 is the ISG motor
  • 5 is the second locking mechanism
  • 6 is the planet carrier
  • 7 is the ring gear
  • 8 is the sun gear.
  • 9 is the gearbox
  • 10 is the main drive motor
  • 11 is the integrated controller
  • 12 is the power supply
  • 13 is the rear axle.
  • the vehicle includes a hybrid hybrid system and a rear axle 13.
  • the hybrid hybrid system includes a planetary row including a sun gear 8, a planet carrier 6 and a ring gear 7, on which a planet gear 14 is mounted, the outer teeth of the planet gear 14 and the internal teeth of the ring gear 7 simultaneously Engages with the external teeth of the sun gear 8.
  • the ring gear 7 is connected to the power system output shaft 15, and the power system output shaft 15 is connected to the rear axle 13.
  • the planetary row includes three power input ends, namely the ring gear power input end, the sun gear power input end and the planet carrier power input end, and the planetary row also includes a power output end, which is connected with power.
  • the hybrid system also includes an engine 1, an ISG motor 4, and a main drive motor 10.
  • the output shaft of the engine 1, the output shaft of the ISG motor 4, and the output shaft of the main drive motor 10 are arranged side by side, which shortens the left and right of the hybrid system as shown in Fig. 1 as compared with the three coaxial arrangements.
  • the length of the direction eliminates the constraints of the size of the hybrid system and expands the range of application of the hybrid system.
  • both the ISG motor and the main drive motor can be used with a solid shaft motor, which reduces the processing difficulty and processing cost and reduces the planet compared with the coaxial arrangement in the prior art.
  • the ISG motor 4 and the main drive motor 10 are respectively disposed on both sides of the output shaft of the engine 1, and the ISG motor 4, the engine 1 and the main drive motor 10 are located on the same side of the planetary row, further shortening the left and right direction. length.
  • a carrier drive shaft 16 is coupled to the output shaft of the engine 1.
  • the carrier 6 is directly mounted on the carrier drive shaft 16.
  • the output shaft of the engine 1 is mounted with a torque damper 2 disposed on the carrier drive shaft 16
  • the ISG motor 4 not only functions to adjust the rotational speed of the engine output shaft, but can also be used as a separate drive motor.
  • An ISG motor drive gear 17 is coupled to the output shaft of the ISG motor 4, and the ISG motor drive gear 17 meshes with the external teeth of the sun gear 8, and the power system further includes a second lock for locking and opening the drive gear 17. Agency 5.
  • the second locking mechanism 5 When the second locking mechanism 5 is opened, the ISG motor 4 can drive the sun gear 8 to rotate, and the sun gear 8 can also reverse the driving of the ISG motor 4 to generate electricity.
  • the second lock mechanism 5 is locked, the ISG motor 4, the ISG motor drive gear 17 and the sun gear 8 are both locked and cannot rotate.
  • the second locking mechanism 5 controls the three by locking the ISG motor driving gear 17.
  • the second locking mechanism 5 can be disposed on the ISG motor output shaft or the sun. The outside of the wheel locks and releases the ISG motor or the sun gear.
  • the ISG motor 4 is locked by the second locking mechanism 5, so that when the engine 1 directly drives the vehicle to travel, when the engine 1 is prevented from rotating the planetary row, the planetary row reversely drives the ISG motor 4 to rotate, so that the system has electromechanical conversion. There is a loss of energy, which leads to an increase in the output power of the engine in order to drive the vehicle normally, and ultimately reduces the overall working efficiency of the system.
  • a transmission 9 is connected to the output shaft of the main drive motor 10.
  • the transmission 9 is a two-speed transmission including first gear, second gear and neutral.
  • a gearbox gear 18 is mounted on the output shaft of the gearbox 9, and the gearbox gear 18 meshes with the external teeth of the ring gear 7.
  • the engine 1 drives the planet carrier 6 to rotate, and drives the planet wheels to revolve.
  • the ISG motor is gear-driven with the sun gear 8 through the ISG motor drive gear 17, and the sun gear 8 rotates. Since the gearbox 9 has a neutral position, when the main drive motor 10 is in the inoperative state, the gearbox 9 is placed in the neutral position, and the planetary row does not reversely drive the main drive motor 10 to rotate, thereby avoiding the main
  • the zero-torque rotation of the drive motor 10 reduces the output load of the power system and improves the overall working efficiency of the power system.
  • the hybrid system of the present invention can realize a working mode of pure electric driving, hybrid driving, direct engine driving, braking energy recovery, etc., as follows:
  • the engine 1 does not start, the ISG motor 4 does not work, the first lock mechanism 3 is locked, the second lock mechanism 5 is opened, the main drive motor 10 is driven, and the power is decelerated and twisted and transmitted to the planet through the transmission 9 Row of ring gears 7.
  • the ring gear 7 drives the planetary gear 14 to rotate and drives the sun gear 8 to rotate, the second locking mechanism 5 is in the open position, and the sun gear 8 is reversed.
  • the ISG motor 4 is driven to generate electricity.
  • the power of the powertrain is transmitted through the ring gear 7 to the powertrain output shaft 15 to transfer power.
  • the gearbox selects different working gears, so that the main drive motor always works in a high efficiency area under the premise of meeting the driving conditions of the vehicle working conditions, thereby improving the system efficiency.
  • the ISG motor 4 generates follow-up power generation, and the mechanical energy is converted into electric energy, which will cause some energy loss.
  • the engine 1 is not activated, the transmission 9 is in neutral, the main drive motor 10 is not working, the first lock mechanism 3 is locked, the second lock mechanism 5 is opened, the ISG motor 4 is turned on, and the power is passed through the ISG output shaft. After the gear is transmitted to the sun gear 8, the ring gear 7 is rotated to drive the whole vehicle.
  • the first locking mechanism 3 and the second locking mechanism 5 are both released, the engine 1 is operated, and the ISG motor 4 is used as an adjusting motor, and the engine speed and torque are adjusted according to the entire vehicle demand so that the engine is always operated in a high efficiency region.
  • the fuel economy is improved, and the integrated controller 11 determines whether to turn on the main drive motor 10 for assisting according to the vehicle demand torque.
  • the main drive motor 10 When the vehicle demand torque is greater than the torque provided by the engine, the main drive motor 10 starts the output torque to drive the vehicle; when the torque provided by the engine can meet the vehicle demand torque, the main drive motor 10 does not work, and the gearbox 9 can be placed empty. The position of the gear; when the torque provided by the engine is greater than the torque required for the vehicle, the main drive motor 10 is in the power generation mode, and the excess mechanical energy is converted into electrical energy and stored in the power source 12.
  • the vehicle speed is higher, the engine 1 is in the high efficiency region, the first lock mechanism 3 is released, and the second lock mechanism 5 locks the ISG motor, so that the engine is in the direct drive mode.
  • the engine directly drives the vehicle.
  • the main drive motor determines whether to assist according to the torque demand of the whole vehicle. This mode cancels the power generation of the ISG motor relative to the hybrid mode, cancels the energy conversion, and improves the energy utilization rate.
  • the output shaft 15 of the power system is connected to the ring gear, and the ring gear is connected to the main drive motor.
  • the engine does not work
  • the ISG motor does not work
  • the main drive motor provides braking force.
  • the gearbox is in different gears according to different braking force requirements. The position is such that sufficient braking torque is ensured, and energy is recovered when the vehicle brakes.
  • the main drive motor is switched to the power generation state, and the electric energy is stored in the power source 12.
  • the gearbox and the transmission gear are respectively used for decelerating and twisting the main drive motor, which greatly improves the climbing performance of the main drive motor driven power system in the electric mode and the hybrid mode, and the system power is better.
  • the engine output shaft, the ISG motor output shaft and the main drive motor output shaft are arranged side by side, which shortens the axial dimension of the power system, eliminates the restriction of the size of the rear longitudinal power system, and expands the application range of the system.
  • the three output shafts are axially parallel, and in other embodiments, the three may be distributed at a certain angle.
  • the hybrid system of the present invention includes a mount in which the engine, the ISG motor, and the main drive motor are integrated into the mount, and the integrated mount facilitates assembly in combination with the rear axle.
  • the first motor is an ISG motor
  • the second motor is a main drive motor
  • the gearbox is disposed only between the main drive motor and the planetary row.
  • the ISG motor can be used with A gearbox is also provided between the planet rows.
  • the first locking mechanism is an engine locking mechanism
  • the second locking mechanism is an ISG motor locking mechanism.
  • hybrid hybrid power system of the present invention the structure of the hybrid hybrid power system is identical to the structure of the above embodiment, and the content thereof will not be described herein.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

本发明提供了一种混联式混合动力系统及包括该混合动力系统的车辆，以增加电机输出扭矩。混联式混合动力系统包括行星排，行星排具有三个动力输入端和一个动力输出端，混合动力系统还包括分别与三个动力输入端对应传动相连的发动机、第一电机和第二电机，发动机输出轴、第一电机输出轴和第二电机输出轴三者异轴布置，混合动力系统包括用于对发动机对应的动力输入端进行锁止的发动机锁止机构，第一电机和第二电机中的至少一个与行星排相应的动力输入端之间设有变速箱。变速箱能够将电机的高转速变为低速，将电机的低扭矩变为高扭矩，增加了电机输入至行星排的扭矩。

Description

一种混联式混合动力系统及包括该混合动力系统的车辆 技术领域
本发明涉及一种混联式混合动力系统及包括该混合动力系统的车辆。
背景技术
混联式混合动力系统相对于串联混合动力系统和并联混合动力系统具有巨大的性能优势。当前混联式动力系统主要采用行星机构作为功率分流装置。
申请公布日为2016年11月16日、申请公布号为CN106114185A的一篇发明专利公开了一种混合动力耦合传动装置，该传动装置(动力系统)包括行星排，行星排具有三个动力输入端和一个动力输出端，三个动力输入端分别为太阳轮输入端、齿圈输入端以及行星架输入端，动力输出端上连接有动力输出轴。动力系统还包括分别与三个动力输入端对应传动相连的发动机、第一电机和第二电机，其中第一电机和第二电机中的一个为传动辅助电机，另一个为驱动电机，发动机输出轴、第一电机输出输出轴和第二电机输出轴并排布置，在发动机输出轴与行星排之间、传动辅助电机输出轴与行星排之间设有制动器。该动力系统中，通过控制第一电机、第二电机和发动机的通断，能够实现不同工作模式的切换。如纯电动模式，处于该模式时，发动机停止工作，动力系统的动力输出是由驱动电机提供的；如混合动力模式，处于该模式时，发动机和驱动电机均工作，动力系统的动力输出是由驱动电机和发动机共同提供的；如发动机驱动模式，处于该模式时，发动机直接驱动车辆。
但是在上述的动力系统中，当驱动电机工作为动力系统提供动力时，由于驱动电机通过齿轮直接与行星排输出轴相连，驱动电机向行星排输入的扭矩值为一定值，为了提高行星排输出端的扭矩，需要配备较大输出扭矩的驱动电机，提高了驱动电机的成本。而且，驱动电机与行星排输出轴之间的转速之比为定值，扭矩之比也为定值，驱动电机无法适应。当动力系统处于发动机驱动模式时，发动机会带动行星排的其中一个动力输入端转动，由于驱动电机通过齿轮直接与行星 排输出轴相连，行星排输出轴会带动驱动电机发生随转，存在机电转换，降低了动力系统的能量利用率。
发明内容
本发明的目的在于提供一种能够增加电机输出扭矩的混联式混合动力系统，本发明还提供一种包括该混合动力系统的车辆。
为实现上述目的，本发明混联式混合动力系统的技术方案是：一种混联式混合动力系统，包括行星排，行星排具有三个动力输入端和一个动力输出端，混合动力系统还包括分别与三个动力输入端对应传动相连的发动机、第一电机和第二电机，发动机输出轴、第一电机输出轴和第二电机输出轴三者异轴布置，混合动力系统包括用于对发动机对应的动力输入端进行锁止的发动机锁止机构，第一电机和第二电机中的至少一个与行星排相应的动力输入端之间设有变速箱。
所述第一电机为ISG电机，第二电机为主驱动电机，所述变速箱设于主驱动电机与相应的动力输入端之间。
ISG电机的输出轴与相应的动力输入端之间通过ISG电机齿轮啮合传动，混合动力系统还包括对ISG电机输出轴或ISG电机齿轮或相应的动力输入端进行锁止的ISG电机锁止机构。
所述发动机输出轴、第一电机输出轴和第二电机输出轴并排布置，所述第一电机和第二电机分设于发动机输出轴的两侧，发动机、第一电机和第二电机位于行星排的同一侧。
混合动力系统包括安装座，所述安装座上集成安装有所述的发动机、第一电机、第二电机、行星排和变速箱。
混合动力系统具如下工作模式：一、纯电动驱动模式1：发动机不启动，ISG电机不工作，发动机锁止机构锁止，ISG电机锁止机构松开，主驱动电机工作，动力通过主驱动电机输出轴传递给变速箱减速增扭后驱动车辆行驶；二、纯电动驱动模式2：发动机不启动，变速箱为空档，主驱动电机不工作，发动机锁止机构锁止，ISG电机锁止机构松开，ISG电机工作，ISG电机驱动车辆行驶；三、混合驱动模式：发动机锁止机构和ISG电机锁止机构均松开，发动机工作，ISG电机调节发动机转速和扭矩，驱动电机根据整车需求确定是否工作助力；四、发动机直驱模式：发动机锁止机构松开，ISG电机锁止机构锁止，发动机工作，ISG 电机不工作，主驱动电机根据整车需求确定是否工作助力；五、制动能量回收模式：发动机不工作，ISG电机不工作，主驱动电机提供制动力，根据不同的制动力需求，变速箱处于不同的档位，主驱动电机变为发电状态，行星排带动主驱动电机进行发电。
本发明车辆的技术方案是：一种车辆，包括混联式混合动力系统，混合动力系统包括行星排，行星排具有三个动力输入端和一个动力输出端，混合动力系统还包括分别与三个动力输入端对应传动相连的发动机、第一电机和第二电机，发动机输出轴、第一电机输出轴和第二电机输出轴三者异轴布置，混合动力系统包括用于对发动机对应的动力输入端进行锁止的发动机锁止机构，第一电机和第二电机中的至少一个与行星排相应的动力输入端之间设有变速箱。
所述第一电机为ISG电机，第二电机为主驱动电机，所述变速箱设于主驱动电机与相应的动力输入端之间。
ISG电机的输出轴与相应的动力输入端之间通过ISG电机齿轮啮合传动，混合动力系统还包括对ISG电机输出轴或ISG电机齿轮或相应的动力输入端进行锁止的ISG电机锁止机构。
所述发动机输出轴、第一电机输出轴和第二电机输出轴并排布置，所述第一电机和第二电机分设于发动机输出轴的两侧，发动机、第一电机和第二电机位于行星排的同一侧。
混合动力系统包括安装座，所述安装座上集成安装有所述的发动机、第一电机、第二电机、行星排和变速箱。
混合动力系统具如下工作模式：一、纯电动驱动模式1：发动机不启动，ISG电机不工作，发动机锁止机构锁止，ISG电机锁止机构松开，主驱动电机工作，动力通过主驱动电机输出轴传递给变速箱减速增扭后驱动车辆行驶；二、纯电动驱动模式2：发动机不启动，变速箱为空档，主驱动电机不工作，发动机锁止机构锁止，ISG电机锁止机构松开，ISG电机工作，ISG电机驱动车辆行驶；三、混合驱动模式：发动机锁止机构和ISG电机锁止机构均松开，发动机工作，ISG电机调节发动机转速和扭矩，驱动电机根据整车需求确定是否工作助力；四、发动机直驱模式：发动机锁止机构松开，ISG电机锁止机构锁止，发动机工作，ISG电机不工作，主驱动电机根据整车需求确定是否工作助力；五、制动能量回收模 式：发动机不工作，ISG电机不工作，主驱动电机提供制动力，根据不同的制动力需求，变速箱处于不同的档位，主驱动电机变为发电状态，行星排带动主驱动电机进行发电。
本发明的有益效果是：本发明提供的混联式混合动力系统，在电机与行星排的相应动力输入端之间设有变速箱，变速箱能够将电机的高转速变为低速，将电机的低扭矩变为高扭矩，增加了电机输入至行星排的扭矩。同时，当设有变速箱的电机处于不工作状态时，可以将变速箱置于空档的位置，使对应的电机不会发生随转而增加动力系统的载荷。本发明中发动机锁止机构能够控制发动机对应的行星排动力输入端是否转动。当本发明的混合动力系统处于纯电动模式时，其中一个电机为驱动电机时，发动机锁止机构锁止，发动机不会随转，降低能量损失，使驱动电机通过变速箱的降速增扭作用驱动车辆行驶。发动机直驱模式下，发动机锁止机构打开，当发动机输出扭矩较小时，电机通过变速箱驱动助力车辆行驶，发动机输出扭矩正好满足车辆行驶时，电机不工作，当发动机输出扭矩较大时，电机变为发电机，将能量存储在电源中。本发明中，变速箱不仅起到减速增扭的作用，也能够根据车辆实际行驶状况发生改变，适应车辆行驶。
附图说明
图1为本发明车辆实施例中的示意图。
图中，1为发动机，2为扭矩减震器，3为第一锁止机构，4为ISG电机，5为第二锁止机构，6为行星架，7为齿圈，8为太阳轮，9为变速箱，10为主驱动电机，11为集成控制器，12为动力电源，13为后桥。
具体实施方式
下面结合附图对本发明的实施方式作进一步说明。
本发明的车辆的具体实施例，如图1所示，车辆包括混联式混合动力系统和后桥13。混联式混合动力系统包括行星排，行星排包括太阳轮8、行星架6和齿圈7，在行星架6上安装有行星轮14，行星轮14的外齿同时与齿圈7的内齿和太阳轮8的外齿相啮合。齿圈7连接动力系统输出轴15，动力系统输出轴15与后桥13相连。由图中可以看出，行星排包括了三个动力输入端，分别为齿圈动力输入端、太阳轮动力输入端和行星架动力输入端，行星排还包括了一个动力输出端，连有动力系统输出轴15。
混合动力系统还包括发动机1、ISG电机4和主驱动电机10。由图可以看出，发动机1的输出轴、ISG电机4的输出轴和主驱动电机10的输出轴并排布置，与三者同轴布置相比，缩短了混合动力系统的图1所示的左右方向的长度，消除了混合动力系统尺寸的制约，扩大了混合动力系统的适用范围。同时，由于采用了并排布置的方式，ISG电机和主驱动电机均可采用实心轴电机，与现有技术中存在的同轴设置的形式相比，降低了加工难度和加工成本，同时降低了行星排润滑油渗入电机的风险。由图中可以看出，ISG电机4和主驱动电机10分设于发动机1输出轴的两侧，且ISG电机4、发动机1和主驱动电机10均位于行星排的同一侧，进一步缩短了左右方向的长度。
在发动机1的输出轴上连接有行星架传动轴16，行星架6直接安装在行星架传动轴16上，发动机1的输出轴上安装有扭矩减震器2，在行星架传动轴16上设有第一锁止机构3，能够实现对行星架传动轴16的锁止和松开，锁止时，行星架6、行星架传动轴16以及发动机1不能发生转动，松开时，三者可以同时转动，带动行星轮14发生公转。
本实施例中，ISG电机4不仅起到调节发动机输出轴的转速的作用，也能够作为单独的驱动电机使用。ISG电机4的输出轴上连接有ISG电机主动齿轮17，ISG电机主动齿轮17与太阳轮8的外齿啮合传动，动力系统还包括用于对主动齿轮17进行锁止和打开的第二锁止机构5。当第二锁止机构5打开时，ISG电机4可以带动太阳轮8进行转动，太阳轮8也可以反向带动ISG电机4转动进行发电。第二锁止机构5锁止时，ISG电机4、ISG电机主动齿轮17和太阳轮8均处于锁止的状态不能发生转动。本实施例中，第二锁止机构5是通过对ISG电机主动齿轮17的锁止实现对三者的控制，在其他实施例中，第二锁止机构5可以设于ISG电机输出轴或太阳轮的外部以对ISG电机或太阳轮进行锁止和松开。通过第二锁止机构5对ISG电机4进行锁止，使得在发动机1直接驱动车辆行驶时，避免发动机1带动行星排转动时，行星排反向驱动ISG电机4进行转动，使系统存在机电转换，存在能量的损耗，导致为了正常驱动车辆行驶而需要提高发动机的输出功率，最终降低了系统的整体工作效率。
主驱动电机10的输出轴上连接有变速箱9，本实施例中，变速箱9为两档变速箱，包括了一档、二档和空档。在变速箱9的输出轴上安装有变速箱齿轮 18，变速箱齿轮18与齿圈7的外齿进行啮合传动。通过在主驱动电机10的后部设置变速箱9，可以使由主驱动电机10输入行星排的速度降低，扭矩增加，起到了减速增扭的作用。通过设置变速箱9，可以选择输出扭矩较小的主驱动电机10，降低电机成本。通过使变速箱9处于不同的档位使得主驱动电机10与车辆的行驶速度和行驶工况相适配，使主驱动电机10处于高效率区域工作。
工作时，发动机1驱动行星架6转动，带动行星轮进行公转。ISG电机通过ISG电机主动齿轮17与太阳轮8进行齿轮啮合传动，太阳轮8进行自转。由于变速箱9具有空档，工作时，当主驱动电机10处于不工作的状态时，将变速箱9置于空档的位置，行星排不会反向带动主驱动电机10进行转动，避免了主驱动电机10零扭矩转动，减小动力系统的输出载荷，提高了动力系统的整体工作效率。
本发明中的混合动力系统可以实现纯电驱动、混合驱动、发动机直驱、制动能量回收等工作模式，具体如下所述：
1、纯电动驱动模式1：
此模式下，发动机1不启动，ISG电机4不工作，第一锁止机构3锁止，第二锁止机构5打开，主驱动电机10驱动，动力经过变速箱9减速增扭后传动给行星排的齿圈7。
由于第一锁止机构3锁止，行星轮14不能发生公转，齿圈7带动行星轮14自转进而带动太阳轮8进行转动，第二锁止机构5处于打开的位置，太阳轮8会反向带动ISG电机4进行发电。动力系统的动力通过齿圈7传递至动力系统输出轴15，将动力传递出去。根据不同的车速和工况需求变速箱选择不同的工作档位，使得在满足车辆工况行驶需求的前提下，主驱动电机始终处于高效率区域工作，从而提升系统效率。此模式下，ISG电机4会发生随动发电，机械能转换为电能，会有部分的能量损失。
2、纯电动驱动模式2：
此模式下，发动机1不启动，变速箱9为空档，主驱动电机10不工作，第一锁止机构3锁止，第二锁止机构5打开，ISG电机4打开，动力经过ISG输出轴经过齿轮传递到太阳轮8上，带动齿圈7转动，驱动整车行驶。
此模式下由于变速箱9为空档，齿圈7的转动不会带动主驱动电机发生转动， 相对于纯电动驱动模式1没有能量的转换，能量损失较小。
3、混合驱动模式：
此模式下，第一锁止机构3和第二锁止机构5均松开，发动机1工作，ISG电机4作为调节电机，根据整车需求调节发动机转速和扭矩使得发动机始终处于高效率区域运行从而提升燃油经济性，同时集成控制器11根据整车需求扭矩确定是否开启主驱动电机10进行助力。
当整车需求扭矩大于发动机提供的扭矩时，主驱动电机10启动输出扭矩驱动车辆；当发动机提供的扭矩能够满足整车需求扭矩时，主驱动电机10不工作，可以将变速箱9置于空档的位置；当发动机提供的扭矩大于整车需求扭矩时，主驱动电机10处于发电模式，将多余的机械能转换为电能存储至动力电源12中。
4、发动机直驱模式：
此模式下，车速较高，发动机1处于高效率区域工作，第一锁止机构3松开，第二锁止机构5锁止ISG电机，使得发动机处于直驱模式，此模式下发动机直接驱动车辆行驶，主驱动电机根据整车需求扭矩情况确定是否助力，此模式相对于混合动力模式取消了ISG电机发电的情况，取消了能量的转换，提高了能量利用率。
5、制动能量回收模式
动力系统输出轴15与齿圈相连，齿圈与主驱动电机相连，此模式下，发动机不工作，ISG电机不工作，主驱动电机提供制动力，根据不同的制动力需求变速箱处于不同的档位，从而保证充足的制动扭矩，在车辆刹车制动时，回收能量，此时，主驱动电机转换为发电状态，将电能存储至动力电源12中。
本发明中，利用了变速箱和传动齿轮分别对主驱动电机进行减速增扭，大大提高了电动模式和混合动力模式下主驱动电机带动动力系统的爬坡性能，系统动力性比较好。
发动机输出轴、ISG电机输出轴和主驱动电机输出轴采用并排布置的方式，缩短了动力系统的轴向尺寸，消除了后纵置动力系统尺寸的制约，扩大了系统的适用范围。本实施例中，三个输出轴轴向平行，在其他实施例中，三者可以呈一定的角度分布。
本发明中的混合动力系统包括了一个安装座，其中发动机、ISG电机和主驱 动电机集成于安装座上，集成式的安装便于与后桥的组合安装。
本实施例中，第一电机为ISG电机，第二电机为主驱动电机，本实施例中，变速箱仅设置在主驱动电机与行星排之间，在其他实施例中，可以在ISG电机与行星排之间也设置变速箱。本实施例中，第一锁止机构即为发动机锁止机构，第二锁止机构即为ISG电机锁止机构。
本发明混联式混合动力系统的具体实施例，混联式混合动力系统的结构与上述实施例的结构一致，其内容在此不再赘述。

Claims (12)

  1. 一种混联式混合动力系统，包括行星排，行星排具有三个动力输入端和一个动力输出端，混合动力系统还包括分别与三个动力输入端对应传动相连的发动机、第一电机和第二电机，发动机输出轴、第一电机输出轴和第二电机输出轴三者异轴布置，混合动力系统包括用于对发动机对应的动力输入端进行锁止的发动机锁止机构，其特征在于：第一电机和第二电机中的至少一个与行星排相应的动力输入端之间设有变速箱。
  2. 根据权利要求1所述的混联式混合动力系统，其特征在于：所述第一电机为ISG电机，第二电机为主驱动电机，所述变速箱设于主驱动电机与相应的动力输入端之间。
  3. 根据权利要求2所述的混联式混合动力系统，其特征在于：ISG电机的输出轴与相应的动力输入端之间通过ISG电机齿轮啮合传动，混合动力系统还包括对ISG电机输出轴或ISG电机齿轮或相应的动力输入端进行锁止的ISG电机锁止机构。
  4. 根据权利要求1所述的混联式混合动力系统，其特征在于：所述发动机输出轴、第一电机输出轴和第二电机输出轴并排布置，所述第一电机和第二电机分设于发动机输出轴的两侧，发动机、第一电机和第二电机位于行星排的同一侧。
  5. 根据权利要求1～4任意一项所述的混联式混合动力系统，其特征在于：混合动力系统包括安装座，所述安装座上集成安装有所述的发动机、第一电机、第二电机、行星排和变速箱。
  6. 根据权利要求3所述的混联式混合动力系统，其特征在于：混合动力系统具有如下工作模式：一、纯电动驱动模式1：发动机不启动，ISG电机不工作，发动机锁止机构锁止，ISG电机锁止机构松开，主驱动电机工作，动力通过主驱动电机输出轴传递给变速箱减速增扭后驱动车辆行驶；二、纯电动驱动模式2：发动机不启动，变速箱为空档，主驱动电机不工作，发动机锁止机构锁止，ISG电机锁止机构松开，ISG电机工作，ISG电机驱动车辆行驶；三、混合驱动模式：发动机锁止机构和ISG电机锁止机构均松开，发动机工作，ISG电机调节发动机转速和扭矩，驱动电机根据整车需求确定是否工作 助力；四、发动机直驱模式：发动机锁止机构松开，ISG电机锁止机构锁止，发动机工作，ISG电机不工作，主驱动电机根据整车需求确定是否工作助力；五、制动能量回收模式：发动机不工作，ISG电机不工作，主驱动电机提供制动力，根据不同的制动力需求，变速箱处于不同的档位，车辆制动时带动主驱动电机转动进行发电。
  7. 一种车辆，包括混联式混合动力系统，混合动力系统包括行星排，行星排具有三个动力输入端和一个动力输出端，混合动力系统还包括分别与三个动力输入端对应传动相连的发动机、第一电机和第二电机，发动机输出轴、第一电机输出轴和第二电机输出轴三者异轴布置，混合动力系统包括用于对发动机对应的动力输入端进行锁止的发动机锁止机构，其特征在于：第一电机和第二电机中的至少一个与行星排相应的动力输入端之间设有变速箱。
  8. 根据权利要求7所述的车辆，其特征在于：所述第一电机为ISG电机，第二电机为主驱动电机，所述变速箱设于主驱动电机与相应的动力输入端之间。
  9. 根据权利要求8所述的车辆，其特征在于：ISG电机的输出轴与相应的动力输入端之间通过ISG电机齿轮啮合传动，混合动力系统还包括对ISG电机输出轴或ISG电机齿轮或相应的动力输入端进行锁止的ISG电机锁止机构。
  10. 根据权利要求7所述的车辆，其特征在于：所述发动机输出轴、第一电机输出轴和第二电机输出轴并排布置，所述第一电机和第二电机分设于发动机输出轴的两侧，发动机、第一电机和第二电机位于行星排的同一侧。
  11. 根据权利要求7～10任意一项所述的车辆，其特征在于：混合动力系统包括安装座，所述安装座上集成安装有所述的发动机、第一电机、第二电机、行星排和变速箱。
  12. 根据权利要求9所述的车辆，其特征在于：混合动力系统具有如下工作模式：一、纯电动驱动模式1：发动机不启动，ISG电机不工作，发动机锁止机构锁止，ISG电机锁止机构松开，主驱动电机工作，动力通过主驱动电机输出轴传递给变速箱减速增扭后驱动车辆行驶；二、纯电动驱动模式2：发动机不启动，变速箱为空档，主驱动电机不工作，发动机锁止机构锁止，ISG电机锁止机构松开，ISG电机工作，ISG电机驱动车辆行驶；三、混合驱动模式：发动机锁止机构和ISG电机锁止机构均松开，发动机工作，ISG电机调 节发动机转速和扭矩，驱动电机根据整车需求确定是否工作助力；四、发动机直驱模式：发动机锁止机构松开，ISG电机锁止机构锁止，发动机工作，ISG电机不工作，主驱动电机根据整车需求确定是否工作助力；发动机直驱模式：发动机锁止机构松开，ISG电机锁止机构锁止，发动机工作，ISG电机不工作，主驱动电机根据整车需求确定是否工作助力；五、制动能量回收模式：发动机不工作，ISG电机不工作，主驱动电机提供制动力，根据不同的制动力需求，变速箱处于不同的档位，车辆制动时带动主驱动电机转动进行发电。
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