CN111890910A - Hybrid module and hybrid vehicle - Google Patents

Hybrid module and hybrid vehicle Download PDF

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Publication number
CN111890910A
CN111890910A CN202010794490.2A CN202010794490A CN111890910A CN 111890910 A CN111890910 A CN 111890910A CN 202010794490 A CN202010794490 A CN 202010794490A CN 111890910 A CN111890910 A CN 111890910A
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China
Prior art keywords
gear
shaft
hybrid module
hybrid
torque
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CN202010794490.2A
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Chinese (zh)
Inventor
李至浩
陈振辉
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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 CN202010794490.2A priority Critical patent/CN111890910A/en
Publication of CN111890910A publication Critical patent/CN111890910A/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
    • B60K6/24—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
    • B60K6/26—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
    • B60K6/36—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
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • 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 connected to the 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 first gear pair and a second gear pair; and first and second torque transmitting devices. The first gear pair comprises a toothed ring and a first gear arranged in a rotationally fixed manner on the first rotational axis, the second gear pair comprises a second gear arranged on the first rotational axis and a third gear arranged in a rotationally fixed manner on the output shaft, and the first torque transmission device can selectively connect the toothed ring in a rotationally fixed manner to the input shaft; a second torque transfer device may selectively anti-rotatably connect the second gear with the first rotatable shaft; the second rotary shaft is connected to the output shaft directly or by means of a further gear pair. 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 first gear wheel set comprises a toothed ring and a first gear wheel which mesh with one another, and the second gear wheel set comprises a second gear wheel and a third gear wheel which mesh with one another, wherein the first gear wheel is arranged in a rotationally fixed manner on the first rotational shaft, the second gear wheel is arranged on the first rotational shaft in a rotationally fixed manner, and the third gear wheel is arranged in a rotationally fixed manner on the output shaft, wherein the first torque transmission device can selectively connect the toothed ring in a rotationally fixed manner with the input shaft; a second torque transfer device may selectively non-rotatably connect the second gear with the first rotational shaft; the second rotary shaft is connected to the output shaft directly or by means of a further gear pair.
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.
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 axis of rotation and the second axis of rotation are arranged in parallel. In this case, the first electric machine and the second electric machine are arranged parallel or offset in the radial direction. The axial dimension of the hybrid module can thereby be reduced.
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 synchronizer. Alternatively, the second torque transmitting device is configured as a dog clutch. 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.
In particular in the embodiment in which the second torque transmission device is designed as a synchronizer, it is also possible to provide a third gear pair in the hybrid module, which third gear pair comprises a fourth gear and a fifth gear which mesh with one another, wherein the fourth gear is arranged on the first rotational axis and the fifth gear is arranged in a rotationally fixed manner on the output shaft, wherein the synchronizer can selectively connect the second gear or the fourth gear in a rotationally fixed manner to the first rotational axis. It is thereby possible to transmit the output torque of the first motor and/or the torque transmitted from the internal combustion engine to the first rotating shaft via the first gear pair to the output shaft via the second gear pair or the third gear pair, or to disconnect the torque transmission between the first rotating shaft and the output shaft, depending on the position state of the synchronizer.
Here, the first gear pair, the second gear pair, and the third gear pair are arranged in this order in the axial direction of the first rotating shaft in a direction toward the first motor. So that the axial dimension of the hybrid module can be reduced as much as possible.
According to an advantageous embodiment, the second rotational shaft is provided with a sixth gearwheel in a rotationally fixed manner, which meshes with the third gearwheel. In other words, a further gear set is provided in the hybrid module, via which the second rotational shaft is connected to the output shaft. In this way, the output torque of the second electric machine, in particular the traction motor, can be transmitted to the output shaft by means of a one-step transmission.
According to an advantageous embodiment, the output shaft is provided with an output gear in a rotationally fixed manner. The output gear preferably meshes with a driven gear of a differential of the hybrid vehicle, thereby constituting a final drive in a vehicle drive train.
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. In this case, the first electric machine and the second electric machine are preferably arranged on the same axial side relative to the gear mechanism of the hybrid module.
The above technical problem is also solved by a hybrid vehicle comprising the above hybrid module.
The hybrid module according to the above aspect is particularly useful for a plug-in hybrid vehicle. With this hybrid module, the following functions can be implemented depending on the operating conditions 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 can be adapted to the respective driving requirements 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 parallel arrangement of the two electric machines also makes it possible to reduce the axial dimensions of the hybrid module. The hybrid module can thus be realized in a smaller overall size, facilitating its arrangement in a 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;
FIG. 2 is a schematic diagram of a hybrid module according to another preferred embodiment.
In the figures, identical or functionally identical components are provided with the same reference symbols.
Detailed Description
FIG. 1 is a schematic illustration of a hybrid module according to a preferred embodiment. The hybrid module is used in a hybrid drive system of a 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 arranged in parallel. Here, the first rotation shaft 7 and the second rotation shaft 8 are arranged in parallel.
As shown in fig. 1, in the present embodiment, the hybrid module includes three pairs of gear pairs. The first gear wheel set comprises a ring gear 16 and a first gear wheel 17 which mesh with one another, wherein the ring gear 16 is integrated in the countershaft and the first gear wheel 17 is arranged in a rotationally fixed manner on the first rotational shaft 7. The second gear set comprises a second gear 20 and a third gear 19 which mesh with one another, wherein the second gear 20 is arranged on the first rotational axis 7 and the third gear 19 is arranged on the output shaft 11 in a rotationally fixed manner. The further pair of gear pairs comprises a third gear wheel 19 and a sixth gear wheel 18 which mesh with one another, wherein the sixth gear wheel 18 is arranged in a rotationally fixed manner on the second rotational shaft 8.
The hybrid module comprises a first torque transmission device 9, which is designed as a friction clutch and which can selectively connect the 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 first torque transmission device 9 facing the internal combustion engine, 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 10 configured as a synchronizer, which can selectively connect the second gear 20 in a rotationally fixed manner with the first rotary 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.
An output gear 12 is arranged on the output shaft 11 in a rotationally fixed manner. The output gear 12 meshes with a driven gear 13 of the 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 operating modes can be achieved depending on the operating conditions of the internal combustion engine 1, the first electric machine 2, the second electric machine 3, and the connected 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, the internal combustion engine 1 and the first electric machine 2 are not operated, the clutch 9 is disengaged and the synchronizer 10 is in the neutral position. 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 rotation shaft 8 to the output shaft 11 via the sixth gear 18 and the third gear 19, and is thus transmitted to the transaxle.
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 and the clutch 9 is disengaged. Both the first electrical machine 2 and the second electrical machine 3 operate in a motor mode. In this case, the synchronizer 10 is engaged in the left position, i.e., the first rotational shaft 6 and the second gear 20 are connected in a rotationally fixed manner. In this case, the output torque of the first motor 2 is transmitted from the first rotation shaft 7 to the output shaft 11 via the second gear 20 and the third gear 19, and the output torque of the second motor 3 is transmitted from the second rotation shaft 8 to the output shaft 11 via the sixth gear 18 and the third gear 19, whereby the torque transmitted to the output shaft 11 can be further transmitted to the transaxle.
3) Engine start mode in a vehicle stop state. In this case, the second electric machine 3 is not operated, the synchronizer 10 is in the neutral position and the clutch 9 is engaged. The first electrical machine 2 operates in motor mode, with its output torque being transmitted from the first rotational shaft 7 via the first gear 17, the ring gear 16, the engaged clutch 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.
4) Engine start mode during vehicle travel. In this case, the synchronizer 10 is in the neutral position and the clutch 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 sixth 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 run. At the same time, the first electric machine 2 operates in a motor mode, and its output torque is transmitted from the first rotary shaft 7 to the internal combustion engine 1 via the first gear 17, the ring gear 16, the engaged clutch 9, the torsional damper 15 and the input shaft 6, thereby starting the internal combustion engine 1 during running 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. In this case, the clutch 9 is engaged and the synchronizer 10 is engaged in the left position, i.e., the first rotational shaft 6 and the second gear 20 are connected in a rotationally fixed manner. 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 clutch 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 through the second gear 20 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 further transmitted to the first electric machine 2, whereby the surplus kinetic energy generated by the internal combustion engine is converted into electric energy, stored in the battery, and thereby charged.
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. In this case, the clutch 9 is engaged and the synchronizer 10 is engaged in the left position, i.e., the first rotational shaft 6 and the second gear 20 are connected in a rotationally fixed manner. 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 engaged clutch 9, the ring gear 16, and the first gear 17, the first rotary shaft 7, the second gear 20, and the third gear 19. The second electric machine 3 operates in a motor mode, and its output torque is transmitted from the second rotary shaft 8 to the output shaft 11 via the sixth 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. In this case, the clutch 9 is engaged and the synchronizer 10 is engaged in the left position, i.e., the first rotational shaft 6 and the second gear 20 are connected in a rotationally fixed manner. 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 engaged clutch 9, the ring gear 16, and the first gear 17, the first rotary shaft 7, the second gear 20, and the third gear 19. The output torque of the first motor 2 is transmitted from the first rotation shaft 7 to the output shaft 11 via the second gear 20 and the third gear 19, and the output torque of the second motor 3 is transmitted from the second rotation shaft 8 to the output shaft 11 via the sixth gear 18 and the third gear 19. The output torque of the second motor 3 is transmitted from the second rotation shaft 8 to the output shaft 11 through the sixth 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. In this case, neither the internal combustion engine 1 nor the first electric machine 4 is active, the clutch 9 is disengaged and the synchronizer 10 is in the neutral position. 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 sixth gear 18 into electric energy, and is thereby stored in the battery.
9) A standard charging mode. In this case, 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 synchronizer 10 is in the neutral position and the clutch 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 clutch 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, whereby a standard charging takes place.
10) Pure engine drive mode. In this case, the first electric machine 2 and the second electric machine 3 are not operated, the clutch 9 is engaged, and the synchronizer 10 is engaged in the left position, i.e., the first rotary shaft 6 and the second gear 20 are connected in a rotationally fixed manner. 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 engaged clutch 9, the ring gear 16 and the first gear 17, the first rotary shaft 7, the second gear 20 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 is operated, the first electrical machine 2 is operated in generator mode, the second electrical machine 3 is operated in motor mode, the clutch 9 is engaged and the synchronizer 10 is in neutral position. 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 engaged clutch 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 sixth gear 18 and the third gear 19, and is thus transmitted to the transaxle, thereby implementing the extended range drive mode.
FIG. 2 is a schematic diagram of a hybrid module according to another preferred embodiment. This embodiment is designed similarly to the embodiment shown in fig. 1, with the main difference that the hybrid module in this embodiment comprises four pairs of gear pairs, whereas the hybrid module in fig. 1 comprises three pairs of gear pairs. Here, three of the gear pairs are arranged as in the embodiment of fig. 1, wherein the additional gear pair comprises a fourth gear wheel 21 and a fifth gear wheel 22 which mesh with one another. In this case, the fourth gear wheel 21 is mounted on the first rotational axis 7, and the fifth gear wheel 22 is arranged in a rotationally fixed manner on the output shaft 11. In this case, the additional gear wheel set is arranged axially next to the second gear wheel set formed by the second gear wheel 20 and the third gear wheel 19. The second torque transmission device 10 according to the present embodiment is configured as a synchronizer which can selectively connect the second gear 20 or the fourth gear 21 in a rotationally fixed manner with the first rotary shaft 7. Thereby, the output torque of the first electric machine 2 and/or the torque transmitted from the internal combustion engine 1 via the first gear pair to the first rotary shaft 7 can be transmitted via the second gear pair or the additional gear pair to the output shaft 11, so that a torque transmission of two gears can be achieved. Here, the first gear pair, the second gear pair and the additional gear pair are arranged in this order in the axial direction of the first rotation shaft 7 in the direction toward the first electric machine 2.
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 driving 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; sixth gear
19 a gear wheel; third gear
20 gears; second gear
21 a gear; fourth gear
22 gears; fifth gear

Claims (10)

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 rotation shaft (8) connected thereto;
-a first gear pair comprising 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 wheel set comprising a second gear wheel (20) and a third gear wheel (19) in mesh with each other; wherein the second gear (20) is arranged on the first rotation shaft (7) in a sleeved manner, and the third gear (19) is arranged on the output shaft (11) in a rotationally fixed 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 gear (20) in anti-rotation with the first rotation shaft (7);
-wherein the second rotation shaft (8) is connected with the output shaft (11) directly or by means of a further gear pair.
2. Hybrid module according to claim 1, characterized in that the first (7) and second (8) rotation shafts are arranged in parallel.
3. Hybrid module according to claim 1, characterised in that the first torque transmission means is configured as a clutch (9).
4. The hybrid module according to claim 1, wherein the second torque transmitting device is configured as a synchronizer (10).
5. Hybrid module according to claim 4, characterized in that it is further equipped with a third gear pair comprising a fourth gear (21) and a fifth gear (22) meshing with each other, wherein the fourth gear (21) is fitted on the first rotation shaft (7) and the fifth gear (22) is arranged in a rotationally fixed manner on the output shaft (11), wherein the synchronizer (10) is able to selectively connect the second gear (20) or the fourth gear (21) in a rotationally fixed manner with the first rotation shaft (7).
6. The hybrid module according to claim 5, characterized in that the first gear pair, the second gear pair, and the third gear pair are arranged in this order in a direction toward the first electric machine (2) in an axial direction of the first rotation shaft (7).
7. Hybrid module according to claim 1, characterised in that the second rotation shaft (8) is provided with a sixth gear wheel (18) in a rotationally fixed manner, the sixth gear wheel (18) meshing with the third gear wheel (19).
8. 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.
9. Hybrid module according to claim 8, characterized in that the output gear (12) is arranged axially on the side remote from the first electric machine (2) with respect to the third gear (19).
10. Hybrid vehicle comprising a hybrid module according to any one of claims 1-9.
CN202010794490.2A 2020-08-10 2020-08-10 Hybrid module and hybrid vehicle Pending CN111890910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010794490.2A CN111890910A (en) 2020-08-10 2020-08-10 Hybrid module and hybrid vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010794490.2A CN111890910A (en) 2020-08-10 2020-08-10 Hybrid module and hybrid vehicle

Publications (1)

Publication Number Publication Date
CN111890910A true CN111890910A (en) 2020-11-06

Family

ID=73246831

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010794490.2A Pending CN111890910A (en) 2020-08-10 2020-08-10 Hybrid module and hybrid vehicle

Country Status (1)

Country Link
CN (1) CN111890910A (en)

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Application publication date: 20201106