WO2023005154A1 - 混合动力系统和控制方法、混合动力车 - Google Patents
混合动力系统和控制方法、混合动力车 Download PDFInfo
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- WO2023005154A1 WO2023005154A1 PCT/CN2022/070333 CN2022070333W WO2023005154A1 WO 2023005154 A1 WO2023005154 A1 WO 2023005154A1 CN 2022070333 W CN2022070333 W CN 2022070333W WO 2023005154 A1 WO2023005154 A1 WO 2023005154A1
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- Prior art keywords
- gear
- gear train
- synchronizer
- motor
- transmission section
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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
- 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 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 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
- 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/24—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
- 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 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 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 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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- 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 disclosure relates to the technical field of automobiles, in particular to a hybrid power system, a control method, and a hybrid power vehicle.
- Embodiments of the present disclosure provide a hybrid power system, a control method, and a hybrid power vehicle, which can avoid and improve power loss. Described technical scheme is as follows:
- an embodiment of the present disclosure provides a hybrid power system, including: a power source, a first main shaft, a second main shaft, a hollow shaft, a first gear train, a second gear train, a first synchronizer, and a second synchronizer and a third synchronizer;
- the first main shaft includes a first transmission section and a second transmission section coaxially arranged at intervals, the power source is in transmission connection with the first transmission section, and the hollow shaft is movably sleeved on the Outside the first transmission section, the first synchronizer is sleeved outside the first transmission section, and is used to connect with at least one of the hollow shaft and the second transmission section;
- the input gear of the first gear train is fixed It is fitted outside the hollow shaft, the output gear of the first gear train is movably fitted outside the second main shaft, and the second synchronizer is fitted outside the second main shaft, and is used to cooperate with the first gear
- the output gear of the second gear train is connected or disconnected;
- the first main shaft as the first transmission section and the second transmission section
- the first transmission section and the second transmission section are separated, and at the same time, the first transmission section is movable outside the hollow shaft, and the first synchronizer It is sleeved outside the first transmission section, so that the transmission connection between the first transmission section and the hollow shaft can be switched through the first synchronizer, or the transmission connection between the first transmission section and the second transmission section can be switched.
- the power source outputs power
- the power is transmitted to the first transmission section, and at this time, the power can be connected to the hollow shaft or the second transmission section through the first synchronizer.
- it also includes a third gear train, the input gear of the third gear train is fixedly sleeved outside the hollow shaft, the output gear of the third gear train is movably sleeved outside the second main shaft, and is located on The side of the second synchronizer away from the output gear of the first gear train, the second synchronizer is also used to connect or disconnect with the output gear of the third gear train, and the second synchronizer A synchronizer is connected with at most one of the output gear of the first gear train and the output gear of the third gear train.
- a fourth gear train is also included, the input gear of the fourth gear train is fixedly sleeved outside the second transmission section, and the output gear of the fourth gear train is movably sleeved outside the second main shaft, and located on the side of the third synchronizer away from the output gear of the second gear train, the third synchronizer is also used to connect or disconnect the output gear of the fourth gear train, and the The third synchronizer is connected with at most one of the output gear of the second gear train and the output gear of the fourth gear train.
- a second motor is also included, and the output shaft of the second motor is in transmission connection with the second transmission section.
- a transmission gear is also included, the transmission gear is coaxially sleeved on the outside of the second main shaft, and is located between the output gear of the first gear train and the output gear of the second gear train, the The transmission gear is in transmission connection with the wheels.
- a differential is also included, and the wheels are in transmission connection with the transmission gear through the differential.
- the output gear of the second gear train is connected.
- An embodiment of the present disclosure provides a hybrid power system, and the hybrid power system includes: an engine, a first motor, a first main shaft, a second main shaft, a hollow shaft, a first gear train, a third gear train, and a second gear train , the fourth gear train, the first synchronizer, the second synchronizer and the third synchronizer; the output shaft of the engine and the output shaft of the first electric motor are all connected to the first main shaft drive, and the first The main shaft includes a coaxial first transmission section and a second transmission section, the first transmission section and the second transmission section are distributed at intervals, the hollow shaft is movably sleeved outside the first transmission section, and the first The synchronizer is sleeved outside the first transmission section, and the first synchronizer is selectively connected with the hollow shaft or the second transmission section; the input gear of the first gear train and the third gear train The input gears of the first gear train and the output gears of the third gear train are both fixedly fitted outside the hollow shaft, and the output gear
- the power system further includes a power supply assembly
- the power supply assembly includes: a battery and two inverters, the two inverters are respectively connected to the battery, The first motor is connected to one of the two inverters, and the second motor is connected to the other of the two inverters.
- the hybrid power system further includes a transmission gear, the transmission gear is coaxially sleeved outside the second main shaft, and the wheels communicate with the transmission gear through a differential Drive connection.
- the control method when the power mode is a pure electric mode, includes: controlling the engine, the second motor does not work, and controlling the first synchronizer and The hollow shaft is connected to control the connection between the second synchronizer and the output gear of the first gear train or the output gear of the third gear train, and controls the connection between the third synchronizer and the second gear train
- the output gear is not connected to the output gear of the fourth gear train, and the first motor is controlled to work; or, the engine is controlled and the second motor is not operated, and the first synchronizer and the second motor are controlled to be inactive.
- the control method when the power mode is a pure engine mode, includes: controlling the first electric motor, the second electric motor does not work, and controlling the first synchronous
- the device is connected with the hollow shaft, the second synchronizer is controlled to be connected with the output gear of the first gear train or the output gear of the third gear train, and the third synchronizer is controlled to be connected with the second gear
- the output gear of the fourth gear train and the output gear of the fourth gear train are not connected, and the engine is controlled to work; or, the first motor and the second motor are controlled not to work, and the first synchronizer and the
- the second transmission section is connected, the second synchronizer is controlled not to be connected to the output gear of the first gear train and the output gear of the third gear train, and the third synchronizer is controlled to be connected to the second The output gear of the gear train or the output gear of the fourth gear train is connected to control the operation of the engine.
- the control method when the power mode is a hybrid driving mode, includes: controlling the engine to drive the first motor to generate electricity, controlling the first synchronizer and the The hollow shaft is not connected to the second transmission section, the second synchronizer is controlled to be disconnected from the output gear of the first gear train and the output gear of the third gear train, and the third gear train is controlled to be
- the synchronizer is connected to the output gear of the second gear train or the output gear of the fourth gear train to control the operation of the second motor; or to control the operation of the engine to control the first motor and the second motor At least one of them works, controls the first synchronizer to be connected to the second transmission section, and controls the second synchronizer to be connected to the output gear of the first gear train and the output gear of the third gear train.
- the control method when the power mode is the energy recovery mode, includes: controlling the engine and the first motor to not work, and controlling the first synchronizer It is not connected with the hollow shaft and the second transmission section, and the second synchronizer is controlled not to be connected with the output gear of the first gear train and the output gear of the third gear train, and the control of the The third synchronizer is connected with the output gear of the second gear train or the output gear of the fourth gear train to make the second motor generate electricity.
- the first main shaft is designed as a first transmission section and a second transmission section, the first transmission section and the second transmission section are separated, and the first transmission section is movable outside the hollow shaft.
- the first synchronizer is set outside the first transmission section, so that the switching of the transmission connection between the first transmission section and the hollow shaft, or the switching of the transmission connection between the first transmission section and the second transmission section can be realized through the first synchronizer.
- FIG. 1 is a schematic structural diagram of a hybrid power system provided by an embodiment of the present disclosure
- Fig. 2 is a schematic diagram of energy transfer of a hybrid system provided in an embodiment of the present disclosure in pure electric mode
- Fig. 3 is a schematic diagram of energy transfer of a hybrid power system in pure electric mode provided by an embodiment of the present disclosure
- Fig. 4 is a schematic diagram of energy transfer in a pure electric mode of a hybrid system provided by an embodiment of the present disclosure
- Fig. 5 is a schematic diagram of energy transfer in a pure electric mode of a hybrid system provided by an embodiment of the present disclosure
- Fig. 6 is a schematic diagram of energy transfer of a hybrid system in pure electric mode provided by an embodiment of the present disclosure
- Fig. 7 is a schematic diagram of energy transfer of a hybrid power system in pure engine mode provided by an embodiment of the present disclosure
- Fig. 8 is a schematic diagram of energy transfer of a hybrid power system provided in an embodiment of the present disclosure in pure engine mode
- Fig. 9 is a schematic diagram of energy transfer of a hybrid power system in a hybrid driving mode provided by an embodiment of the present disclosure.
- Fig. 10 is a schematic diagram of energy transfer of a hybrid power system in a hybrid driving mode provided by an embodiment of the present disclosure
- Fig. 12 is a schematic diagram of energy transfer of a hybrid power system in a hybrid driving mode provided by an embodiment of the present disclosure.
- the first gear train 31. The input gear of the first gear train; 32. The output gear of the first gear train;
- Fig. 1 is a schematic structural diagram of a hybrid power system provided by an embodiment of the present disclosure. As shown in Figure 1, the power source, the first main shaft 20, the second main shaft 21, the hollow shaft 22, the first gear train 3, the second gear train 5, the first synchronizer 71, the second synchronizer 72 and the third synchronizer device 73.
- the input gear of the first gear train 3 is fixedly sleeved outside the hollow shaft 22
- the output gear of the first gear train 3 is movably sleeved outside the second main shaft 21
- the second synchronizer 72 is sleeved outside the second main shaft 21 .
- the second synchronizer 72 is used to connect or disconnect the output gear of the first gear train 3 .
- the input gear of the second gear train 5 is fixedly set outside the second transmission section 202
- the output gear of the second gear train 5 is movably set outside the second main shaft 21
- the third synchronizer 73 is set outside the second main shaft 21 .
- the third synchronizer 73 is used for connecting or disconnecting the output gear of the second gear train 5
- the second main shaft 21 is drivingly connected with the wheels.
- the power When the power is transmitted to the hollow shaft, the power is transmitted to the second main shaft through the first gear train and the second synchronizer, and the third synchronizer is disconnected from the second gear train, so the power will not be transmitted to the second gear train and the second gear train.
- Second transmission section When the power is transmitted to the second transmission section, the power is transmitted to the second main shaft through the second gear train and the third synchronizer, the second synchronizer is disconnected from the first gear train, and the power will not be transmitted to the first gear train and hollow shaft. Thereby improving the problem of dragging energy consumption and reducing power loss.
- the gear ratio of the third gear train 4 is different from the gear ratio of the first gear train 3 .
- the transmission ratio between the hollow shaft 22 and the second main shaft 21 can be changed, so that the vehicle has more gears.
- the hybrid system also includes a fourth gear train 6, the input gear of the fourth gear train 6 is fixedly set outside the second transmission section 202, the output gear of the fourth gear train 6 is movably set outside the second main shaft 21, and the fourth The output gear of the gear train 6 is located on the side of the third synchronizer 73 away from the output gear of the second gear train 5 .
- the third synchronizer 73 is also used to connect or disconnect the output gear of the fourth gear train 6, and the third synchronizer 73 is at most connected to the output gear of the second gear train 5 and the output gear of the fourth gear train 6. a connection.
- the gear ratio of the fourth gear train 6 is different from the gear ratio of the second gear train 5 .
- the transmission ratio between the second transmission section 202 and the second main shaft 21 can be changed, so that the vehicle has more gears.
- the hybrid system includes: engine 11, first motor 12, first main shaft 20, second main shaft 21, hollow shaft 22, first gear train 3, third gear train 4, second gear train 5.
- the fourth gear train 6 the first synchronizer 71 , the second synchronizer 72 and the third synchronizer 73 .
- the output shaft of the engine 11 and the output shaft of the first motor 12 are all connected to the first main shaft 20 in transmission
- the first main shaft 20 includes a coaxial first transmission section 201 and a second transmission section 202
- the first The transmission section 201 and the second transmission section 202 are distributed at intervals
- the hollow shaft 22 is movably sleeved outside the first transmission section 201
- the first synchronizer 71 is sleeved outside the first transmission section 201
- the first synchronizer 71 can be optionally connected with the hollow shaft 22 or the second transmission section 202 transmission connection.
- the input gear 51 of the second gear train 5 and the input gear 61 of the fourth gear train 6 are all fixedly sleeved outside the second transmission section 202, and the output gear 52 of the second gear train 5 and the fourth gear train
- the output gears 62 of 6 are all movably fitted outside the second main shaft 21, and the third synchronizer 73 is fitted outside the second main shaft 21, and is located between the output gear 52 of the second gear train 5 and the output gear 62 of the fourth gear train 6.
- the second synchronizer 72 can be selectively connected in transmission with the output gear 52 of the second gear train 5 or the output gear 62 of the fourth gear train 6, and the second main shaft 21 is in transmission connection with the wheels.
- the hybrid power system provided by the embodiment of the present disclosure is designed by designing the first main shaft 20 into a first transmission section 201 and a second transmission section 202, the first transmission section 201 and the second transmission section 202 are separated, and at the same time, the first transmission section 201
- the outer movable sleeve is outside the hollow shaft 22, and the first synchronizer 71 is sleeved outside the first transmission section 201, so that the transmission connection between the first transmission section 201 and the hollow shaft 22 can be switched through the first synchronizer 71, or the first transmission section 201 can be switched.
- the transmission section 201 is in transmission connection with the second transmission section 202 .
- the input gear 31 of the first gear train 3 and the input gear 41 of the third gear train 4 are fixedly sleeved on the hollow shaft 22, the input gear 51 of the second gear train 5 and the input gear 61 of the fourth gear train 6 It is fixedly set outside the second transmission section 202. In this way, when the engine 11 and the first motor 12 output power, the power is transmitted to the first transmission section 201 , and the power can be selectively connected to the hollow shaft 22 or the second transmission section 202 through the first synchronizer 71 .
- the end of the second transmission section 202 opposite to the first transmission section 201 is provided with a connecting cylinder 203, the connecting cylinder 203 is coaxial with the second transmission section 202, and one end of the first transmission section 201
- the connecting cylinder 203 is movably inserted, and when the first synchronizer 71 is in transmission connection with the second transmission section 202 , the first synchronizer 71 connects the connection cylinder 203 and the first transmission section 201 .
- the connecting cylinder 203 at the end of the second transmission section 202, so that the end of the first transmission section 201 can be directly inserted into the inner hole of the connecting cylinder 203, it is convenient for the first transmission section 201 to It is coaxially connected with the second transmission section 202.
- the hybrid power system further includes a second electric motor 13 , the output shaft of the second electric motor 13 is in transmission connection with the second transmission section 202 . Setting the second motor 13 in the hybrid system can provide greater power for the hybrid system.
- the second motor 13 since the second motor 13 is connected to the second transmission section 202 by transmission, the second motor 13 can also transmit the power of the second motor 13 to the second gear under the switching of the third synchronizer 73 5 or the fourth gear train 6, so as to realize the two-speed driving mode of the second motor 13. In this way, by arranging the second motor 13 on the second transmission section 202, the second motor 13 can share part of the gear train with the engine 11, and there is no need for the gear train of the second motor 13, thereby saving costs.
- the hybrid system also includes a differential 92 .
- the wheels are in transmission connection with the transmission gear 91 through the differential 92 .
- the input gear of the differential 92 meshes with the transmission gear 91 installed on the second main shaft 21 so as to receive the power transmitted from the second main shaft to achieve the purpose of driving the wheels to rotate.
- the differential gear 92 can make the wheels connected with the output shaft of the differential gear 92 rotate at different rotational speeds.
- the turning radius of the inner wheel of the car and the outer wheel of the car are different, and the turning radius of the outer wheel is larger than that of the inner wheel, which requires that the speed of the outer wheel is higher than that of the inner wheel when turning , using the differential 92 can make the two wheels roll at different speeds, thereby realizing the difference in the speeds of the two wheels.
- the battery 81 is a rechargeable battery 81
- the inverter 82 is arranged on the output circuit of the battery 81 for converting the direct current output by the battery 81 into a three-phase alternating current to drive the first motor 12 or the second motor 13.
- An embodiment of the present disclosure also provides a hybrid vehicle, which includes a hybrid system as shown in FIG. 1 .
- An embodiment of the present disclosure provides a method for controlling a hybrid power system, which is applicable to the aforementioned hybrid power system.
- the first synchronizer 71 is controlled to be connected to the second transmission section 202
- the second synchronizer 72 is controlled to be disconnected from the output gear of the first gear train 3
- the third synchronizer 73 is connected to the output gear of the second gear train 5 .
- the power is transmitted to the second main shaft 21 through the second transmission section 202 via the second gear train 5 .
- control method includes: determining the power mode; controlling the working states of the engine 11, the first motor 12 and the second motor 13 according to the power mode, and the first synchronizer 71, the second synchronizer 72 and the third synchronizer 73 connection status.
- the power mode includes pure electric mode, pure engine mode, hybrid drive mode or energy recovery mode, and pure electric mode includes single motor mode and dual motor mode.
- the control method when the power mode of the hybrid system is switched to the single-motor mode of the pure electric mode, the control method includes:
- the first synchronizer 71 controls the connection between the hollow shaft 22 and the first transmission section 201, the first motor 12 alone drives the vehicle, and the power of the first motor 12 is transmitted to the first gear train 3 and the third gear train 3 through the hollow shaft 22.
- the gear train 4 is used to realize the two gear driving modes of the first motor 12 .
- FIG. 2 is a schematic diagram of energy transfer of a hybrid power system provided in an embodiment of the present disclosure in pure electric mode.
- the first motor 12 outputs power to the first transmission section 201, and then transmits the power to the hollow shaft 22 through the first synchronizer 71, and then transmits the power through the output gear 32 of the first gear train 3 and the second synchronizer 72 To the second main shaft 21, the final power is transmitted to the wheels through the transmission gear 91 and the differential 92 to drive the vehicle. Realize the first gear driving mode when the first motor 12 works.
- the control method when the power mode of the hybrid system is switched to the single-motor mode of the pure electric mode, the control method includes:
- the first synchronizer 71 controls the connection between the first transmission section 201 and the second transmission section 202, the first motor 12 alone drives the vehicle, and the power of the first motor 12 is transmitted to the second gear train through the second transmission section 202 5 and the fourth gear train 6 to realize the other two gear drive modes of the first motor 12.
- FIG. 3 is a schematic diagram of energy transfer of a hybrid power system provided in an embodiment of the present disclosure in pure electric mode.
- the first motor 12 outputs power to the first transmission section 201, and is transmitted to the second transmission section 202 through the first synchronizer 71, and then the power passes through the output gear 52 of the second gear train 5 and the third synchronizer 73 is transmitted to the second main shaft 21, and the final power is transmitted to the wheels through the transmission gear 91 and the differential 92 to drive the vehicle.
- the third gear driving mode when the first motor 12 works.
- the first synchronizer 71 controls the disconnection of the first transmission section 201 and the second transmission section 202, the second motor 13 alone drives the vehicle, and the power of the second motor 13 will be transmitted to the second transmission section 202 through the second transmission section 202.
- the gear train 5 and the fourth gear train 6 are used to realize two gear driving modes of the second motor 13 .
- FIG. 4 is a schematic diagram of energy transfer of a hybrid power system in pure electric mode provided by an embodiment of the present disclosure.
- the second motor 13 outputs power to the second transmission section 202, and the power is transmitted to the second main shaft 21 through the output gear 52 and the third synchronizer 73 of the second gear train 5, and finally the power is transmitted to the second main shaft 21 through the transmission gear 91 and The differential 92 transmits to the wheels to drive the vehicle. Realize the third gear driving mode when the second motor 13 works.
- control Methods when the power mode of the hybrid system is switched to the dual-motor mode of the pure electric mode, at this time, both the first motor 12 and the second motor 13 work, and the engine 11 does not work, and the control Methods include:
- the first synchronizer 71 controls the connection between the first transmission section 201 and the second transmission section 202, the first motor 12 and the second motor 13 drive the vehicle together, and the power of the first motor 12 and the second motor 13 will pass through the first
- the second transmission section 202 is transmitted to the second gear train 5 and the fourth gear train 6 to realize two gear driving modes of the first motor 12 and the second motor 13 .
- Fig. 5 is a schematic diagram of energy transfer of a hybrid power system provided in an embodiment of the present disclosure in pure electric mode.
- the first motor 12 outputs power to the first transmission section 201, and transmits it to the second transmission section 202 through the first synchronizer 71
- the second motor 13 outputs power to the second transmission section 202
- the power of the second motor 13 is transmitted to the second main shaft 21 through the output gear 52 of the second gear train 5 and the third synchronizer 73, and finally the power is transmitted to the wheels through the transmission gear 91 and the differential 92 to drive the vehicle.
- the third gear driving mode when the first motor 12 and the second motor 13 are working.
- control Methods when the power mode of the hybrid system is switched to the dual-motor mode of the pure electric mode, at this time, both the first motor 12 and the second motor 13 work, and the engine 11 does not work, and the control Methods include:
- the second synchronizer 72 when it is necessary to control the first motor 12 to realize the second gear driving mode, it is enough to control the second synchronizer 72 to connect the output gear 42 of the third gear train 4 to the second main shaft 21; In the fourth gear driving mode, the third synchronizer 73 is controlled to connect the output gear 62 of the fourth gear train 6 to the second main shaft 21 .
- the first synchronizer 71 controls the connection between the hollow shaft 22 and the first transmission section 201, the engine 11 alone drives the vehicle, and the power of the engine 11 is transmitted to the first gear train 3 and the third gear train 4 through the hollow shaft 22, In order to realize two gear driving modes of the engine 11.
- the control method when the power mode of the hybrid system is switched to the pure engine 11 mode, the control method includes:
- Control the first motor 12, the second motor 13 does not work, control the first synchronizer 71 to connect with the second transmission section 202, control the output gear 32 of the second synchronizer 72 and the first gear train 3 and the third gear train 4 None of the output gears 42 is connected, and the third synchronizer 73 is controlled to be connected to the output gear 52 of the second gear train 5 or the output gear 62 of the fourth gear train 6 to control the engine 11 to work.
- the first synchronizer 71 controls the connection between the first transmission section 201 and the second transmission section 202, the engine 11 alone drives the vehicle, and the power of the engine 11 will be transmitted to the second gear train 5 and the fourth gear train 5 through the second transmission section 202. gear train 6 to realize the other two gear driving modes of the engine 11.
- FIG. 8 is a schematic diagram of energy transfer of a hybrid power system in pure engine mode provided by an embodiment of the present disclosure.
- the engine 11 outputs power to the first transmission section 201, and is transmitted to the second transmission section 202 through the first synchronizer 71, and then the power is transmitted through the output gear 62 of the fourth gear train 6 and the third synchronizer 73.
- the final power is transmitted to the wheels through the transmission gear 91 and the differential 92 to drive the vehicle.
- the fourth gear driving mode when the engine 11 is working is realized.
- the control method when the power mode of the hybrid power system is switched to the hybrid drive mode, includes:
- the output gears 42 of the system 4 are not connected, the third synchronizer 73 is controlled to be connected with the output gear 52 of the second gear train 5 or the output gear 62 of the fourth gear train 6, and the second motor 13 is controlled to work.
- the first synchronizer 71 controls the hollow shaft 22 and the second transmission section 202 to be disconnected from the first transmission section 201, the engine 11 drives the first motor 12 to generate electricity, and the electric energy generated by the first motor 12 is stored in the power supply assembly 8 , the power supply assembly 8 supplies power to the second motor 13 at the same time, so that the second motor 13 alone drives the vehicle, and the power of the second motor 13 will be transmitted to the second gear train 5 and the fourth gear train 6 through the second transmission section 202, so as to Two gear driving modes of the second motor 13 are realized.
- FIG. 9 is a schematic diagram of energy transfer of a hybrid power system in a hybrid driving mode provided by an embodiment of the present disclosure.
- the second motor 13 outputs power to the second transmission section 202, which is transmitted to the second main shaft 21 through the output gear 52 and the third synchronizer 73 of the second gear train 5, and finally the power is transmitted to the second main shaft 21 through the transmission gear 91 and the differential Transmission 92 to the wheels to drive the vehicle.
- the third gear driving mode when the second motor 13 works.
- the control method when the power mode of the hybrid power system is switched to the hybrid driving mode, at this time, the engine 11, the first motor 12 and the second motor 13 are all working, and the control method includes:
- the first synchronizer 71 controls the connection between the first transmission section 201 and the second transmission section 202, the engine 11, the first motor 12 and the second motor 13 jointly drive the vehicle, and the engine 11, the first motor 12 and the second motor
- the power of 13 will be transmitted to the second gear train 5 and the fourth gear train 6 through the second transmission section 202 to realize two gear driving modes of the engine 11 , the first motor 12 and the second motor 13 .
- FIG. 10 is a schematic diagram of energy transfer of a hybrid power system in a hybrid driving mode provided by an embodiment of the present disclosure.
- the engine 11 the first motor 12 output power to the first transmission section 201
- the first synchronizer 71 transmits the power to the second transmission section 202
- the second motor 13 outputs power to the second transmission section 202, the engine 11.
- the output gear 52 of the fourth gear train 6 or the output gear 62 of the fourth gear train 6 is connected.
- the engine 11 and the first motor 12 output power to the first transmission section 201, and then transmit it to the hollow shaft 22 through the first synchronizer 71, and then the power passes through the output gear 32 of the first gear train 3 and the second synchronous 72 is transmitted to the second main shaft 21, the second motor 13 outputs power to the second transmission section 202, and the power of the second motor 13 is transmitted to the second main shaft 21 through the output gear 52 of the second gear train 5 and the third synchronizer 73 , the final power is transmitted to the wheels through the transmission gear 91 and the differential 92 to drive the vehicle. Realize the first gear driving mode when the engine 11 and the first motor 12 work, and the third gear driving mode when the second motor 13 works.
- the second synchronizer 72 when it is necessary to control the engine 11 and the first motor 12 to realize the second gear driving mode, the second synchronizer 72 is controlled to connect the output gear 42 of the third gear train 4 to the second main shaft 21;
- the motor 13 realizes the driving mode of the fourth gear, it only needs to control the third synchronizer 73 to connect the output gear 62 of the fourth gear train 6 to the second main shaft 21 .
- Both the engine 11 and the first motor 12 are controlled not to work, the first synchronizer 71 is controlled to be disconnected from the hollow shaft 22 and the second transmission section 202, and the second synchronizer 72 is controlled to be connected to the output gear 32 and the first gear train 3 of the first gear train 3.
- the output gears 42 of the three gear trains 4 are not connected, and the third synchronizer 73 is controlled to be connected to the output gear 52 of the second gear train 5 or the output gear 62 of the fourth gear train 6 to make the second motor 13 generate electricity.
- Fig. 12 is a schematic diagram of energy transfer of a hybrid power system in a hybrid driving mode provided by an embodiment of the present disclosure. As shown in Figure 12, the power of the wheels is transmitted to the second main shaft 21 through the differential 92 and the transmission gear 91, and is transmitted to the second motor 13 through the second gear train 5 to drive the second motor 13 in the third gear Generating electricity in drive mode.
- the power mode of the hybrid system may also include a reverse mode, and when the power mode is switched to the reverse mode, the control method includes:
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Abstract
Description
Claims (10)
- 一种混合动力系统,其特征在于,包括:动力源、第一主轴(20)、第二主轴(21)、空心轴(22)、第一齿轮系(3)、第二齿轮系(5)、第一同步器(71)、第二同步器(72)和第三同步器(73);所述第一主轴(20)包括同轴间隔布置的第一传动段(201)和第二传动段(202),所述动力源与所述第一传动段(201)传动连接,所述空心轴(22)活动套装在所述第一传动段(201)外,所述第一同步器(71)套装在第一传动段(201)外,用于与所述空心轴(22)和所述第二传动段(202)中的至多一个相连;所述第一齿轮系(3)的输入齿轮固定套装在所述空心轴(22)外,所述第一齿轮系(3)的输出齿轮活动套装在所述第二主轴(21)外,所述第二同步器(72)套装在所述第二主轴(21)外,用于与所述第一齿轮系(3)的输出齿轮连接或断开连接;所述第二齿轮系(5)的输入齿轮固定套装在所述第二传动段(202)外,所述第二齿轮系(5)的输出齿轮活动套装在所述第二主轴(21)外,所述第三同步器(73)套装在所述第二主轴(21)外,用于与所述第二齿轮系(5)的输出齿轮连接或断开连接,所述第二主轴(21)与车轮传动连接。
- 根据权利要求1所述的混合动力系统,其特征在于,还包括第三齿轮系(4),所述第三齿轮系(4)的输入齿轮固定套装在所述空心轴(22)外,所述第三齿轮系(4)的输出齿轮活动套装在所述第二主轴(21)外,且位于所述第二同步器(72)远离所述第一齿轮系(3)的输出齿轮的一侧,所述第二同步器(72)还用于与所述第三齿轮系(4)的输出齿轮连接或断开连接,且所述第二同步器(72)至多与所述第一齿轮系(3)的输出齿轮和所述第三齿轮系(4)的输出齿轮中的一个连接。
- 根据权利要求1所述的混合动力系统,其特征在于,还包括第四齿轮系(6),所述第四齿轮系(6)的输入齿轮固定套装在所述第二传动段(202)外,所述第四齿轮系(6)的输出齿轮活动套装在所述第二主轴(21)外,且位于所 述第三同步器(73)远离所述第二齿轮系(5)的输出齿轮的一侧,所述第三同步器(73)还用于与所述第四齿轮系(6)的输出齿轮连接或断开连接,且所述第三同步器(73)至多与所述第二齿轮系(5)的输出齿轮和所述第四齿轮系(6)的输出齿轮中的一个连接。
- 根据权利要求1~3任一项所述的混合动力系统,其特征在于,所述动力源包括发动机(11)和第一电机(12),所述发动机(11)的输出轴与所述第一电机(12)的输出轴的一端相连,所述第一电机(12)的输出轴的另一端与所述第一传动段(201)相连。
- 根据权利要求4所述的混合动力系统,其特征在于,还包括第二电机(13),所述第二电机(13)的输出轴与所述第二传动段(202)传动连接。
- 根据权利要求5所述的混合动力系统,其特征在于,还包括供电组件(8),所述供电组件(8)包括:电池(81)和两个逆变器(82),两个所述逆变器(82)分别与所述电池(81)连接,所述第一电机(12)与两个所述逆变器(82)中的一个连接,所述第二电机(13)与两个所述逆变器(82)中的另一个连接。
- 根据权利要求1或2所述的混合动力系统,其特征在于,还包括传动齿轮(91),所述传动齿轮(91)同轴套装在所述第二主轴(21)外,且位于所述第一齿轮系(3)的输出齿轮和所述第二齿轮系(5)的输出齿轮之间,所述传动齿轮(91)与所述车轮传动连接。
- 根据权利要求7所述的混合动力系统,其特征在于,还包括差速器(92),所述车轮通过所述差速器(92)与所述传动齿轮(91)传动连接。
- 一种混合动力车,其特征在于,包括如权利要求1~8任一项所述的混合动力系统。
- 一种混合动力系统的控制方法,其特征在于,用于控制如权利要求1~8 任一项所述的混合动力系统,所述方法包括:控制所述第一同步器(71)与所述空心轴(22)相连,控制所述第二同步器(72)与所述第一齿轮系(3)的输出齿轮连接,所述第三同步器(73)与所述第二齿轮系(5)的输出齿轮断开连接;或者,控制所述第一同步器(71)与所述第二传动段(202)相连,控制所述第二同步器(72)与所述第一齿轮系(3)的输出齿轮断开连接,所述第三同步器(73)与所述第二齿轮系(5)的输出齿轮连接。
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| CN202110859812.1A CN113400921A (zh) | 2021-07-28 | 2021-07-28 | 混合动力系统和控制方法 |
| CN202110859812.1 | 2021-07-28 |
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| CN118457204A (zh) * | 2024-05-16 | 2024-08-09 | 中国第一汽车股份有限公司 | 一种混合动力系统及车辆 |
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| CN113400921A (zh) * | 2021-07-28 | 2021-09-17 | 奇瑞汽车股份有限公司 | 混合动力系统和控制方法 |
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| CN211195835U (zh) * | 2019-10-30 | 2020-08-07 | 比亚迪股份有限公司 | 混合动力系统以及具有其的车辆 |
| CN113022295B (zh) * | 2021-03-30 | 2022-08-12 | 奇瑞汽车股份有限公司 | 混合动力系统和控制方法 |
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- 2021-07-28 CN CN202110859812.1A patent/CN113400921A/zh active Pending
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| DE102006036758A1 (de) * | 2006-08-05 | 2008-02-28 | Zf Friedrichshafen Ag | Automatisiertes Doppelkupplungsgetriebe eines Kraftfahrzeuges |
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