CN111993881A - Hybrid module and hybrid vehicle - Google Patents

Hybrid module and hybrid vehicle Download PDF

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Publication number
CN111993881A
CN111993881A CN202010787486.3A CN202010787486A CN111993881A CN 111993881 A CN111993881 A CN 111993881A CN 202010787486 A CN202010787486 A CN 202010787486A CN 111993881 A CN111993881 A CN 111993881A
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China
Prior art keywords
gear
shaft
torque
hybrid
hybrid module
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CN202010787486.3A
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Chinese (zh)
Inventor
李至浩
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Priority to CN202010787486.3A priority Critical patent/CN111993881A/en
Publication of CN111993881A publication Critical patent/CN111993881A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • 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
    • B60K6/24—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units 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 combustion engines
    • 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
    • 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
    • B60K6/38—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B60K2006/268—Electric drive motor starts the engine, i.e. used as starter motor
    • 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

Abstract

The invention relates to a hybrid module and a hybrid vehicle. The hybrid module includes: an input shaft for connection with an internal combustion engine; an output shaft for transmitting torque to the drive axle; a first motor and a first rotating shaft thereof; a second motor and a second rotating shaft thereof; a ring gear and a first gear that mesh with each other; a second gear and a third gear meshed with each other; and first and second torque transmitting devices. The second rotary shaft is designed as a hollow shaft, and the first rotary shaft is arranged inside the second rotary shaft. In this case, the first gear wheel is arranged in a rotationally fixed manner on the first rotational shaft, the second gear wheel is arranged on the second rotational shaft, the third gear wheel is arranged in a rotationally fixed manner on the output shaft, and the first torque transmission device can selectively connect the ring gear in a rotationally fixed manner with the input shaft; a second torque transfer device may selectively non-rotatably connect the second rotary shaft with the first rotary shaft. The hybrid vehicle comprises the hybrid module.

Description

Hybrid module and hybrid vehicle
Technical Field
The invention relates to the technical field of vehicles. The invention relates in particular to a hybrid module. The invention also relates to a hybrid vehicle comprising the hybrid module.
Background
In current hybrid vehicles, multiple operating modes of the hybrid vehicle can be achieved by a hybrid module provided with two electric machines, i.e. a traction motor and an integrated starter generator, in cooperation with the internal combustion engine. In this case, the internal combustion engine of the hybrid vehicle is connected to the hybrid module via a separating clutch. The separating clutch is engaged or disengaged depending on the condition of the internal combustion engine. For example, during road driving, the efficiency of the internal combustion engine is high due to high vehicle speed, the separation clutch is engaged, the vehicle is driven by the power of the internal combustion engine, and the traction motor only operates as a generator; in city running, the efficiency of the internal combustion engine is very low due to low speed, and the separation clutch is disconnected at the moment, and the torque is output only by the traction motor.
However, in some cases, the integrated starter generator is used as a motor only when starting the internal combustion engine, and is used only as a generator in other operation modes, and cannot output torque to support vehicle running. At the same time, both the traction motor and the internal combustion engine are equipped with only a single gear, which is not sufficient to optimize the operating point of the traction motor or the internal combustion engine. Such hybrid vehicles do not achieve the desired low speed performance, particularly hill climbing performance, and also require additional rear wheel drive because of the limited output torque of the traction motor, thus resulting in a high overall system cost.
In other cases, planetary gear mechanisms are often provided in hybrid transmissions. A hybrid transmission for a hybrid vehicle is disclosed, for example, in chinese patent application CN 1336879 a, in which a planetary gear mechanism is provided and an internal combustion engine and two electric machines drive the vehicle through the hybrid transmission. Such hybrid vehicles have good city driving economy but are not suitable for highway driving because the vehicles cannot be driven directly by the internal combustion engine, the electric machine is always operated in a power generation mode or a traction mode to adjust the operating point of the internal combustion engine, and the dynamic performance of such hybrid vehicles in the ECVT mode is not ideal.
Disclosure of Invention
The present invention is therefore based on the object of providing a hybrid module for a vehicle, in particular a hybrid vehicle, which enables a plurality of operating modes of the hybrid vehicle and enables an internal combustion engine and an electric machine to be operated in an efficient range, while overcoming the above-mentioned problems.
The technical problem is solved by a hybrid module for a hybrid vehicle, comprising: an input shaft for connection with an internal combustion engine of a hybrid vehicle; an output shaft for transmitting torque to a transaxle of the hybrid vehicle; the device comprises a first motor and a first rotating shaft connected with the first motor; a second motor and a second rotating shaft connected with the second motor; a first gear pair and a second gear pair; and first and second torque transmitting devices. The second rotary shaft is designed as a hollow shaft, and the first rotary shaft is arranged inside the second rotary shaft. The first gear pair comprises a gear ring and a first gear which are meshed with each other, the second gear pair comprises a second gear and a third gear which are meshed with each other, wherein the first gear is arranged on the first rotating shaft in a non-rotating mode, the second gear is sleeved on the second rotating shaft, the third gear is arranged on the output shaft in a non-rotating mode, and the first torque transmission device can selectively connect the gear ring with the input shaft in a non-rotating mode; a second torque transfer device may selectively non-rotatably connect the second rotary shaft with the first rotary shaft.
The terms "input" and "output" refer here to the torque transmission direction in the hybrid module in the case of an internal combustion engine and two electric machines in a direct drive vehicle. The designations of "input" and "output" are not limited within the scope of this description to the torque transmitting direction in the other operating modes of the hybrid module.
Here, the first motor and the second motor are each configured as an inner rotor type motor. The first electric machine may be designed as an integrated starter generator. The first rotating shaft may be an output shaft of the first motor, or may be a shaft member that is rotationally fixed to the output shaft of the first motor. The second electric machine may be designed in particular as a traction motor. The second rotating shaft may be an output shaft of the second motor, or may be a shaft member that is connected to the output shaft of the second motor in a mutually anti-rotation manner.
According to a preferred embodiment, the first motor and the second motor are arranged coaxially. In this case, the first rotation axis and the second rotation axis are coaxially arranged. The radial dimensions of the hybrid module can thereby be reduced.
The second torque transmission device is advantageously arranged axially between the first electric machine and the second electric machine. Alternatively, the second torque transmission device is arranged axially on the side of the second electric machine facing the internal combustion engine.
The second gear is advantageously arranged axially on the side of the second electric machine which is closer to the input shaft. This makes it possible to arrange the first and second gear wheel pairs compactly.
According to one advantageous embodiment, the first torque transmission device is designed as a clutch. The first torque transmission device is in particular designed as a friction clutch. The first torque transmission device can be used as a disconnect clutch, with the internal combustion engine of the hybrid vehicle being connected to the hybrid module when the first torque transmission device is engaged and disconnected from the hybrid module when the first torque transmission device is disengaged.
According to one advantageous embodiment, the second torque transmission device is designed as a clutch. Alternatively, the second torque transmitting device is configured as a dog clutch or synchronizer. When the second torque transmitting device is engaged, the output torque of the first motor and/or the torque transmitted from the internal combustion engine to the first rotary shaft via the first gear pair may be transmitted to the output shaft via the second gear pair.
According to an advantageous embodiment, the output shaft is provided with an output gear in a rotationally fixed manner. The output gear is preferably meshed with a driven gear of a differential of the hybrid vehicle, thereby configuring a final drive in a vehicle driveline.
In this case, the output gear is arranged on a side away from the first motor with respect to the third gear in the axial direction.
The above technical problem is also solved by a hybrid vehicle comprising the above hybrid module.
The hybrid module according to the above aspect may be used in particular for a plug-in hybrid vehicle. With such a hybrid module, the following functions can be implemented depending on the operating mode of the internal combustion engine, the first electric machine (integrated starter generator), the second electric machine (traction motor) and the connection state of the first torque transmission device and the second torque transmission device:
-purely electric drive by means of a traction motor;
-purely electric drive by means of a traction motor and an integrated starter generator;
-starting the internal combustion engine in a stopped state of the vehicle;
-starting of the combustion engine during driving of the vehicle;
-purely internal combustion engine driven;
-a hybrid drive;
-recovery charging;
-standard charging;
-a range-extending drive.
In the hybrid module described above, the electric machine and the internal combustion engine and the respective driving requirements can be adapted by adjusting the transmission ratio of the individual gear wheel pairs. Particularly, by providing the second torque transfer device, the traction motor can be assisted by the integrated starter generator to realize pure electric drive when the state of charge of the battery in the hybrid vehicle is at a high level, so that the torque output requirement of the traction motor is reduced, and the traction motor with a smaller size and a lower cost can be adopted. In addition, at the time of high-speed running, the mode of direct driving of the internal combustion engine can be adopted, so that the operating point of the internal combustion engine does not need to be adjusted by losing extra power, and therefore, the system efficiency and the fuel economy of the hybrid vehicle are optimized. In addition, in the case where the first gear pair is configured as a ring gear-gear pair, the first gear may be meshed on the radially inner side of the ring gear, whereby the size of the gear mechanism in the hybrid module can be reduced while securing a large gear ratio. At the same time, the coaxial arrangement of the two electric machines can also reduce the radial dimensions of the hybrid module. As a result, a smaller overall size of the hybrid module can be achieved, which facilitates its arrangement in the vehicle.
Drawings
Preferred embodiments of the present invention are schematically illustrated in the following with reference to the accompanying drawings. The attached drawings are as follows:
FIG. 1 is a schematic illustration of a hybrid module according to a preferred embodiment.
Detailed Description
FIG. 1 is a schematic illustration of a hybrid module according to a preferred embodiment. The hybrid module is used in a plug-in hybrid vehicle. The hybrid module comprises an input shaft 6 for connection with an internal combustion engine 1 of the hybrid vehicle and an output shaft 11 for transmitting torque to a drive axle of the hybrid vehicle.
The hybrid module also comprises two separate electric machines, a first electric machine 2 acting as an integrated starter generator and a second electric machine 3 acting as a traction motor. The first electric machine 2 is connected to the hybrid module via a first rotary shaft 7 connected thereto. The second electric machine 3 is connected to the hybrid module via a second rotary shaft 8 connected thereto. The first motor 2 and the second motor 3 are coaxially arranged. In this case, the second rotation shaft 8 is designed as a hollow shaft, and the first rotation shaft 7 is arranged inside the second rotation shaft 8, the first rotation shaft 7 and the second rotation shaft 8 being arranged coaxially in this case.
As shown in fig. 1, in the present embodiment, the hybrid module includes a first gear pair composed of a ring gear 16 and a first gear 17 that mesh with each other, and a second gear pair composed of a second gear 18 and a third gear 19 that mesh with each other. The ring gear 16 is integrated in the intermediate shaft, and the first gear 17 is arranged in a rotationally fixed manner at the end of the first rotational shaft 7. A second gear 18 is arranged on the second rotational axis 8, and a third gear 19 is arranged in a rotationally fixed manner on the output shaft 11.
The hybrid module comprises a first torque transmission device, which is designed as a friction clutch 9 and which can selectively connect an intermediate shaft, in particular a ring gear 16, in a rotationally fixed manner to the input shaft 6. A torsional vibration damper 15 is optionally also provided on the side of the friction clutch 9 facing the internal combustion engine 1, as a result of which an internal combustion engine output torque with reduced rotational irregularities can be introduced into the hybrid module.
The hybrid module further comprises a second torque transmission device, which is designed as a clutch 10 and which can selectively connect the second rotational shaft 8 in a rotationally fixed manner to the first rotational shaft 7. Thereby, the output torque of the first electric machine 2 and/or the torque transmitted from the internal combustion engine 1 to the first rotation shaft 7 via the first gear pair can be transmitted to the output shaft 11 via the second gear pair.
As shown in fig. 1, in the present embodiment, the input shaft 6, the torsional damper 15, the first torque transmission device 9, the first gear pair, the second electric machine 3, the second torque transmission device 10, and the first electric machine 2 are arranged in this order in the axial direction.
An output gear 12 is arranged on the output shaft 11 in a rotationally fixed manner. The output gear 12 meshes with a differential output gear 13 of a differential 4 of the hybrid vehicle, so that the torque in the hybrid module can be transmitted to the differential 4 and then to the drive wheels 5 of the hybrid vehicle via differential half shafts 14.
With the hybrid module as described above, the following operation modes can be realized depending on the operation conditions of the internal combustion engine 1, the first electric machine (integrated starter generator) 2, the second electric machine (traction motor) 3, and the connection states of the first torque transmitting device 9 and the second torque transmitting device 10:
1) a purely electric drive mode by means of the traction motor. In this case, neither the internal combustion engine 1 nor the first electric machine 2 is operated, the first torque transmission device 9 is switched off, and the second torque transmission device 10 is switched off. The second electric machine 3 alone provides power for driving the vehicle. In this case, the output torque of the second motor 3 is transmitted from the second rotary shaft 8 to the output shaft 11 via the second gear 18 and the third gear 19, and is thereby transmitted to the transaxle, thereby driving the vehicle to travel.
2) A purely electric drive mode with the aid of the traction motor and the integrated starter generator. Here, the internal combustion engine 1 is not operated, the first torque transmission device 9 is disengaged, and the second torque transmission device 10 is engaged. Both the first electrical machine 2 and the second electrical machine 3 operate in a motor mode. In this case, the output torque of the first motor 2 is transmitted from the first rotary shaft 7 to the second rotary shaft 8 via the second torque transmission device 10, and the output torque of the first motor 2 and the output torque of the second motor 3 are transmitted from the second rotary shaft 8 to the output shaft 11 through the second gear 18 and the third gear 19 in common, whereby the torque transmitted to the output shaft 11 can be further transmitted to the transaxle, thereby driving the vehicle to travel.
3) Engine start mode in a vehicle stop state. Here, the second electric machine 3 is not operated, the second torque transmission device 10 is disconnected, and the first torque transmission device 9 is engaged. The first electrical machine 2 operates in motor mode, with its output torque being transmitted from the first rotation shaft 7 via the first gear 17, the ring gear 16, the engaged first torque transmission means 9, the torsional vibration damper 15 and the input shaft 6 to the internal combustion engine 1, thereby starting the internal combustion engine 1.
4) Engine start mode during vehicle travel. Here, the second torque transmitting device 10 is disengaged and the first torque transmitting device 9 is engaged. The second electric machine 3 operates in a motor mode, and its output torque is transmitted from the second rotating shaft 8 to the output shaft 11 via the second gear 18 and the third gear 19, so that the torque transmitted to the output shaft 11 can be further transmitted to the transaxle to drive the vehicle to run. At the same time, the first electrical machine 2 is operated in motor mode, the output torque of which is transmitted from the first rotational shaft 7 via the first gear 17, the ring gear 16, the engaged first torque transmission device 9, the torsional vibration damper 15 and the input shaft 6 to the internal combustion engine 1, so that the internal combustion engine 1 is started during driving of the vehicle.
5) A first hybrid drive mode, in which the first electric machine 2 operates in generator mode and the second electric machine 3 is not operated. Here, the first torque transmission device 9 is engaged and the second torque transmission device 10 is engaged. The internal combustion engine 1 is operated, and its output torque is transmitted to the first rotary shaft 7 via the input shaft 6, the torsional damper 15, the engaged first torque transmission device 9, the ring gear 16, and the first gear 17. A part of the torque transmitted to the first rotating shaft 7 is transmitted to the output shaft 11 via the first torque transmitting device 9, the second rotating shaft 8, the second gear 18, and the third gear 19, and is further transmitted to the transaxle to drive the vehicle to travel. Another part of the torque transmitted to the first rotating shaft 7 is continuously transmitted to the first electric machine 2, whereby the first electric machine 2 converts the surplus kinetic energy generated by the internal combustion engine into electric energy to be stored in the battery, thereby performing charging.
6) A second hybrid drive mode, in which the first electric machine 2 is not operated and the second electric machine 3 is operated in the motor mode. Here, the first torque transmission device 9 is engaged and the second torque transmission device 10 is engaged. In this case, the internal combustion engine 1 is operated, and its output torque is transmitted to the second rotation shaft 8 via the input shaft 6, the torsional damper 15, the engaged first torque transmission device 9, the ring gear 16 and the first gear 17, the first rotation shaft 7 and the first torque transmission device 9 in this order. The output torque of the internal combustion engine 1 and the output torque of the second motor 3 are transmitted from the second rotation shaft 8 to the output shaft 11 via the second gear 18 and the third gear 19. The torque thus transmitted to the output shaft 11 can be further transmitted to a transaxle to drive the vehicle to travel.
7) A third hybrid drive mode, in which both the first electric machine 2 and the second electric machine 3 operate in the motor mode. Here, the first torque transmission device 9 is engaged and the second torque transmission device 10 is engaged. In this case, the internal combustion engine 1 is operated, and its output torque is transmitted to the second rotary shaft 8 via the input shaft 6, the torsional damper 15, the engaged first torque transmission device 9, the ring gear 16 and the first gear 17, the first rotary shaft 7 and the second torque transmission device 10. The output torque of the first motor 2 is transmitted from the first rotary shaft 7 to the second rotary shaft 8 via the second torque transmission device 10. The output torques of the internal combustion engine 1, the first motor 2, and the second motor 3 are transmitted from the second rotation shaft 8 to the output shaft 11 via the second gear 18 and the third gear 19. The torque thus transmitted to the output shaft 11 can be further transmitted to a transaxle to drive the vehicle to travel.
8) The charge mode is recovered. Here, neither the internal combustion engine 1 nor the first electric machine 4 is operated, the first torque transmission device 9 is switched off and the second torque transmission device 10 is switched off. The second electric machine 3 operates in a generator mode, which converts braking power transmitted from the drive wheels 5 to the second rotating shaft 8 via the differential 4, the output shaft 11, the third gear 19, the second gear 18 into electric energy, and is thereby stored in the battery, enabling regenerative charging.
9) A standard charging mode. Here, the internal combustion engine 1 is operated, the first electric machine 2 is operated in generator mode, the second electric machine 3 is not operated, the second torque transmission device 10 is disconnected and the first torque transmission device 9 is engaged. The first electric machine 2 converts the engine output torque, which is transmitted from the input shaft 6 via the torsional vibration damper 15, the engaged first torque transmission 9, the ring gear 16 and the first gear 17 to the first rotary shaft 7, into electrical energy, which can then be stored in a battery, as a result of which a standard charging is achieved.
10) Pure engine drive mode. Here, neither the first electric machine 2 nor the second electric machine 3 is active, the first torque transmission device 9 is engaged, and the second torque transmission device 10 is engaged. In this case, the internal combustion engine 1 is operated, and its output torque is transmitted to the output shaft 11 via the input shaft 6, the torsional damper 15, the first torque transmission device 9, the ring gear 16 and the first gear 17, the first rotating shaft 7, the second torque transmission device 10, the second rotating shaft 8, the second gear 18 and the third gear 19, whereby the torque transmitted to the output shaft 11 can be further transmitted to the transaxle to drive the vehicle to travel.
11) And a range-extended driving mode. Here, the internal combustion engine 1 is operated, the first electric machine 2 is operated in generator mode, the second electric machine 3 is operated in motor mode, the first torque transmission device 9 is engaged, and the second torque transmission device 10 is disengaged. The first electric machine 2 converts the engine output torque, which is transmitted from the input shaft 6 to the first rotary shaft 7 via the torsional vibration damper 15, the first torque transmission device 9, the ring gear 16 and the first gear 17, into electrical energy. The electric energy can drive the second motor 3 to output torque. In this case, the output torque of the second motor 3 is transmitted from the second rotary shaft 8 to the output shaft 11 via the second gear 18 and the third gear 19, and is thus transmitted to the transaxle, thereby implementing the extended range drive mode.
Although possible embodiments have been described by way of example in the above description, it should be understood that numerous embodiment variations exist, still by way of combination of all technical features and embodiments that are known and that are obvious to a person skilled in the art. It should also be appreciated that the exemplary embodiment or exemplary embodiments are only examples, and are not intended to limit the scope, applicability, or configuration of the invention in any way. From the foregoing description, one of ordinary skill in the art will more particularly provide a technical guide to convert at least one exemplary embodiment, wherein various changes may be made, particularly in matters of function and structure of the components described, without departing from the scope of the following claims.
List of reference numerals
1 internal combustion engine
2 a first motor; integrated starter generator
3 a second motor; traction motor
4 differential mechanism
5 wheel
6 input shaft
7 first rotation axis
8 second rotation axis
9 first torque transmission device
10 second torque transmitting device
11 output shaft
12 output gear
13 differential driven gear
14 differential half shaft
15 torsion damper
16 ring gear
17 gears; first gear
18 gears; second gear
19 a gear wheel; third gear

Claims (9)

1. A hybrid module for a hybrid vehicle, the hybrid module comprising:
-an input shaft (6) for connection with an internal combustion engine (1) of the hybrid vehicle;
-an output shaft (11) capable of transmitting torque to a drive axle of the hybrid vehicle;
-a first electric motor (2) and a first rotation shaft (7) connected thereto;
-a second electric machine (3) and a second rotational shaft (8) connected thereto, wherein the second rotational shaft (8) is configured as a hollow shaft, the first rotational shaft (7) being arranged inside the second rotational shaft (8);
-a mutually meshing ring gear (16) and a first gear wheel (17), wherein the first gear wheel (17) is arranged non-rotatably on the first rotational shaft (7);
-a second gear (18) and a third gear (19) meshing with each other; wherein the second gear (18) is arranged on the second rotation axis (8) in a sleeved manner, and the third gear (19) is arranged on the output shaft (11) in a non-rotating manner;
-a first torque transmission device (9) able to selectively connect the ring gear (16) in anti-rotation with the input shaft (6);
-a second torque transfer device (10) able to selectively connect the second rotation shaft (8) in anti-rotation with the first rotation shaft (7).
2. Hybrid module according to claim 1, characterized in that the first electric machine (2) and the second electric machine (3) are arranged coaxially.
3. Hybrid module according to claim 2, characterized in that the second torque transfer device (10) is arranged axially between the first electric machine (2) and the second electric machine (3).
4. Hybrid module according to claim 3, characterised in that said second gear (18) is arranged axially on the side close to said input shaft (6) with respect to said second electric machine (3).
5. Hybrid module according to claim 1, characterised in that the first torque transmission means is configured as a clutch (9).
6. Hybrid module according to claim 1, characterized in that the second torque transmission device is configured as a clutch (10).
7. Hybrid module according to claim 1, characterized in that the output shaft (11) is provided with an output gear (12) in a rotationally fixed manner.
8. Hybrid module according to claim 7, characterized in that said output gear (12) is arranged axially on the side remote from said first electric machine (2) with respect to said third gear (19).
9. Hybrid vehicle comprising a hybrid module according to any one of claims 1-8.
CN202010787486.3A 2020-08-07 2020-08-07 Hybrid module and hybrid vehicle Pending CN111993881A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010787486.3A CN111993881A (en) 2020-08-07 2020-08-07 Hybrid module and hybrid vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010787486.3A CN111993881A (en) 2020-08-07 2020-08-07 Hybrid module and hybrid vehicle

Publications (1)

Publication Number Publication Date
CN111993881A true CN111993881A (en) 2020-11-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010787486.3A Pending CN111993881A (en) 2020-08-07 2020-08-07 Hybrid module and hybrid vehicle

Country Status (1)

Country Link
CN (1) CN111993881A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112590526A (en) * 2020-12-04 2021-04-02 浙江吉利控股集团有限公司 Hybrid power driving device
US11850943B2 (en) * 2022-04-28 2023-12-26 Hyundai Motor Company Hybrid powertrain for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112590526A (en) * 2020-12-04 2021-04-02 浙江吉利控股集团有限公司 Hybrid power driving device
US11850943B2 (en) * 2022-04-28 2023-12-26 Hyundai Motor Company Hybrid powertrain for vehicle

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Application publication date: 20201127