CN112074428A - Hybrid module with a torque-transmitting gear - Google Patents

Hybrid module with a torque-transmitting gear Download PDF

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Publication number
CN112074428A
CN112074428A CN201980028026.8A CN201980028026A CN112074428A CN 112074428 A CN112074428 A CN 112074428A CN 201980028026 A CN201980028026 A CN 201980028026A CN 112074428 A CN112074428 A CN 112074428A
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CN
China
Prior art keywords
gear
torque
input shaft
hybrid module
output shaft
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Pending
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CN201980028026.8A
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Chinese (zh)
Inventor
本杰明·斯托伯
史蒂芬·莱曼
莱昂内尔·胡贝尔
马克·赫尔弗
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Publication of CN112074428A publication Critical patent/CN112074428A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
    • 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
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K6/485—Motor-assist type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4833—Step up or reduction gearing driving generator, e.g. to operate generator in most efficient speed range
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/06—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The invention relates to a hybrid module (1) for a motor vehicle having a drive machine (2) which is connected to a torque input shaft (3) in a torque-transmitting manner, wherein an output shaft (4) of the drive machine (2) is arranged axially parallel to the torque input shaft (3), wherein at least two meshing/intermeshing gears (5, 6) are connected to the output shaft (4) and the torque input shaft (3) for transmitting torque between the output shaft (4) and the torque input shaft (3).

Description

Hybrid module with a torque-transmitting gear
Technical Field
The invention relates to a hybrid module for a (hybrid) motor vehicle having a drive machine, for example an electric motor or an internal combustion engine, which is connected in a torque-transmitting manner to a torque input shaft or a torque output shaft, for example a transmission input shaft or a crankshaft, for example, which is driven by the internal combustion engine or the electric motor (in the following simply referred to as torque input shaft), wherein the output shaft or the drive shaft of the drive machine (in the following simply referred to as output shaft) is arranged axially parallel to the torque input shaft.
Background
Background of the inventionhybrid modules with drive machines arranged in an axially parallel manner are known from the background. For example, DE 102016212846 a1 discloses a clutch device for a motor vehicle drive-train having an electric motor or an internal combustion engine, the torque of which can be transmitted to a transmission via a clutch unit, wherein a separating clutch is arranged between a coupling means, which is intended to transmit the motor torque in the direction of the clutch unit, and a transmission means which can be driven on the internal combustion engine side, wherein the electric motor is arranged in such a way that: the rotational axis of which is not aligned with the rotational axis about which the clutch unit member rotates during operation, wherein an endless traction mechanism designed as a chain is used to transmit torque from the electric motor to the coupling mechanism.
Hybrid modules are generally designed in such a way that: it is screwed together with the internal combustion engine and the transmission bell. The other interfaces are used for connecting a crankshaft of the internal combustion engine, the motor and the air-conditioning compressor. A damper, clutch and actuator system is integrated in the hybrid module. In addition, the hybrid module is filled with oil in order to be able to cool the clutch and lubricate components arranged inside the hybrid module. The clutch, which is also referred to as disconnect clutch K0, is used to couple the internal combustion engine to the transmission and to the electric machine. The electric machine is arranged axially parallel to the crankshaft or transmission input shaft. The electric machine and the clutch or transmission input shaft form a main drive train, which is usually connected via a main chain drive designed as a toothed chain. In addition, the air-conditioning compressor can also be connected to the electric motor via a secondary chain drive designed as a toothed chain. As an alternative to connecting axially parallel hybrid modules, toothed belts, multi-V belts or V-belts may also be used.
The background art, however, always has the following disadvantages, namely: in the systems described above in which the main drive train is connected via a chain drive, high chain speeds can occur depending on the transmission ratio between the electric machine and the transmission input shaft, which can disadvantageously lead to high loads on the chain, for example due to friction or centrifugal forces. Therefore, the chain is an important member. In addition, the use of a chain results in additional expense because a chain tensioning mechanism must be present in the chain system to enable tensioning or re-tensioning of the chain.
Disclosure of Invention
It is therefore an object of the present invention to avoid or at least mitigate the disadvantages described in the background. In particular, a hybrid module should be provided which does not have to be connected, in particular via a toothed chain, to the main drive train in order to avoid the disadvantages of using toothed chains. An alternative to the main chain drive is to provide a satisfactory torque transmission in terms of crankshaft position relative to the electric machine, transmission ratio, etc., under defined frame conditions.
According to the invention, the object of the invention is achieved in such a device by the following means: at least two intermeshing gears are connected to the output shaft and the torque input shaft for transferring torque between the output shaft and the torque input shaft. Thus, at least one first gear is used for torque transmission, which meshes with a second gear. That is to say, the main transmission is no longer realized by a toothed chain, but by a gear. Thus, torque transmission is achieved through the gear stages.
The advantage of this is, on the one hand, that no mechanical devices for tensioning the toothed chain have to be provided, which is also advantageous with regard to the required installation space. On the other hand, the advantage is that the torque transmission through the gear is subjected to relatively small frictional and centrifugal loads or is more robust under a given load.
Advantageous embodiments are claimed in the dependent claims, which will be explained in detail below.
It is also advantageous if at least three gears are present for transmitting torque, wherein a first gear is connected in a rotationally fixed manner to the output shaft, a second gear is connected in a rotationally fixed manner to the torque input shaft, and a third gear meshes with the first and second gears. This advantageously saves installation space, in particular radial installation space, since gears of relatively small diameter can be used.
It is also advantageous if the gears are arranged axially parallel to one another. Torque transmission between two axially parallel shafts, for example a motor output shaft and a torque input shaft, can thus be realized in a simple manner at relatively low design costs.
It is also advantageous if the gear wheel is designed as a spur gear with external toothing. Torque transmission can thus be ensured by a single-stage or multistage spur gear arrangement, wherein the required transmission ratio can also be variably adjusted. This makes it possible to provide the required transmission simply for the specified frame conditions.
It is particularly advantageous if a helical toothing is provided between the first and third toothed wheels and/or between the second and third toothed wheels. That is, a spur gear drive would work with a gear with helical teeth. This has the advantage that fewer hard impacts are formed when the gear teeth mesh, and thus vibrations are reduced, so that the transmission can run relatively quietly. The durability of the gear teeth can thereby also be increased. Alternatively, a gear with spur teeth may also be used.
An advantageous embodiment is further characterized in that a high toothing is provided between the first and third toothed wheels and/or between the second and third toothed wheels. That is, gears with a high mesh length, i.e. a tooth height factor of more than 1/preferably more than 2, will be used in spur gear transmissions. The formation of noise during engagement can thereby be greatly reduced.
It is particularly advantageous to use a helical transmission with high teeth, since this is particularly inconspicuous in terms of acoustic properties.
It is also advantageous if the transmission ratio between the output shaft and the torque input shaft can be adjusted by the ratio between the number of first gear teeth and the number of second gear teeth. The number of teeth of the gear wheels arranged between the first and second gear wheels is irrelevant for the transmission ratio. The size of the gear wheel or gears arranged in between is therefore selected without taking into account the required transmission ratio. Whereby the one or more gears can be optimally designed.
It is also advantageous if the outer diameter of the third gear wheel is larger than the outer diameter of the first gear wheel and/or the second gear wheel. Therefore, a third gear designed to be as large as possible should be used as the intermediate gear, whereby the rotational speed of the intermediate gear can be kept at a low level. In addition, the intermediate gear is also subjected to relatively high loads, since both the first and the second gear engage in the intermediate gear and introduce or draw forces, it is advantageous if the intermediate gear is designed with an (outer) diameter which is preferably between 0.8 and 1.5 times the size of the (outer) diameter of the first gear.
It is also advantageous if the first, second and/or third gear wheel is/are supported by axial bearings. The axial forces generated can thus be advantageously controlled by the helical toothing.
It is also advantageous if an odd number of gears is provided for transmitting torque between the output shaft and the torque input shaft. The number of gears is understood here to be the number of gears, including the first and second gears, which are arranged between the first gear, to which the output shaft is fixed, and the second gear, to which the torque input shaft is fixed. Thereby eliminating the need to reverse the direction of rotation of the drive.
In other words, the invention relates to an axially parallel hybrid module with a gear stage. Here, the hybrid module has an electric machine which is connected to a separating clutch, to the crankshaft of the internal combustion engine or to the output shaft by means of gears instead of chains or belts.
Thus, force is transferred from the crankshaft to the motor through three gears or from the motor to the transmission input shaft or crankshaft (through (disconnect) clutches and dampers). It is also possible to use two or more than three gears, depending on the available installation space. The installation space therefore limits the size of the gear. The transmission ratio is adjusted by the gear ratio between the input and output shafts.
The tolerance is controlled by the geometry of the gears or, when installed, is finally matched by the mating of the gear pairs. Significant noise levels should be avoided here by means of fluctuations in the tolerances of the components which are determined by the manufacturing process. The teeth of the gear can be selected in a variety of ways. Straight teeth are available, helical teeth are advantageous, and helical teeth with high teeth are particularly advantageous. The axial forces occurring can be controlled by means of the corresponding bearing arrangement of the gear.
Drawings
The invention will be explained below with the aid of the figures. Brief description of the drawings:
fig. 1 is a partial longitudinal section through a hybrid module according to the invention, comprising a gear stage for transmitting torque between an axially parallel drive machine and a torque input shaft.
The drawings are merely schematic in nature and are provided to aid in understanding the present invention. Like elements carry like reference numerals.
Detailed Description
Fig. 1 shows a hybrid module 1 according to the invention, in which a drive machine 2 is connected to a torque input shaft 3 in a torque-transmitting manner. The output shaft 4 of the drive machine 2 is arranged axially parallel to the torque input shaft 3. In order to transmit torque between the output shaft 4 and the torque input shaft 3, a first gear wheel 5 is connected in a torsionally fixed manner to the output shaft 4, a second gear wheel 6 is connected in a torsionally fixed manner to the torque input shaft 3, and a third gear wheel 7 is present, which is used as an intermediate gear wheel and which meshes with the first gear wheel 5 and the second gear wheel 6. That is, torque is transmitted from the output shaft 4 to the torque input shaft 3 through one gear stage.
The drive machine 2 is designed as an electric motor 8. The output shaft 4 of the motor 8 and the first gear 5 are arranged axially parallel to the second gear 6 and the third gear 7. The second gear 6 is arranged axially parallel to the third gear 7.
The torque input shaft 3 may be a transmission input shaft, a crankshaft or a disconnect clutch. The first gear 5, the second gear 6 and the third gear 7 each have one external tooth. Here, the external teeth of the third gear 7 mesh with the external teeth of both the first gear 5 and the second gear 6. The outer diameter of the first gear 5 is approximately equal to the outer diameter of the third gear 7. The outer diameter of the second gear 6 is about three times the outer diameter of the third gear 7.
The teeth of the gears 5, 6, 7 can be designed as straight, helical, tall or obliquely tall teeth.
The electric motor 8 is connected to the air-conditioning compressor 10 in a torque-transmitting manner via a secondary chain drive 9.
Description of the reference numerals
1 hybrid power module
2 driving machine
3 Torque input shaft
4 output shaft
5 first gear
6 second gear
7 third gear
8 electric machine
9 secondary chain transmission
10 air conditioning compressor.

Claims (10)

1. Hybrid module (1) for a motor vehicle having a drive machine (2) which is connected to a torque input shaft (3) in a torque-transmitting manner, wherein an output shaft (4) of the drive machine (2) is arranged axially parallel to the torque input shaft (3), characterized in that at least two intermeshing gears (5, 6) are connected to the output shaft (4) and the torque input shaft (3) for transmitting torque between the output shaft (4) and the torque input shaft (3).
2. Hybrid module (1) according to claim 1, characterised in that there are at least three gears (5, 6, 7) for transmitting torque, wherein a first gear (5) is connected in a torsionally fixed manner with the output shaft (4), a second gear (6) is connected in a torsionally fixed manner with the torque input shaft (3), and a third gear (7) meshes with the first gear (5) and the second gear (6).
3. Hybrid module (1) according to claim 1 or 2, characterized in that the gears (5, 6, 7) are arranged in a mutually axially parallel manner.
4. Hybrid module (1) according to one of claims 1 to 3, characterized in that the gears (5, 6, 7) are designed as spur gears with external toothing.
5. Hybrid module (1) according to one of claims 2 to 4, characterized in that a helical toothing is designed between the first gearwheel (5) and the third gearwheel (7) and/or between the second gearwheel (6) and the third gearwheel (7).
6. Hybrid module (1) according to one of claims 2 to 5, characterized in that a high toothing is designed between the first gearwheel (5) and the third gearwheel (7) and/or between the second gearwheel (6) and the third gearwheel (7).
7. Hybrid module (1) according to any one of claims 2 to 6, characterised in that the transmission ratio between the output shaft (4) and the torque input shaft (3) is adjustable by the ratio between the number of teeth of the first gear wheel (5) and the number of teeth of the second gear wheel (6).
8. Hybrid module (1) according to any one of claims 2 to 7, characterized in that the outer diameter of the third gear wheel (7) is greater than the outer diameter of the first gear wheel (5) and/or of the second gear wheel (6).
9. Hybrid module (1) according to one of claims 2 to 8, characterized in that the first gear wheel (5), the second gear wheel (6) and/or the third gear wheel (7) are supported by axial bearings.
10. Hybrid module (1) according to one of claims 1 to 9, characterized in that an odd number of gears (5, 6, 7) is arranged for transmitting torque between the output shaft (4) and the torque input shaft (3).
CN201980028026.8A 2018-05-14 2019-02-12 Hybrid module with a torque-transmitting gear Pending CN112074428A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102018111410.9A DE102018111410A1 (en) 2018-05-14 2018-05-14 Hybrid module with torque transmitting gears
DE102018111410.9 2018-05-14
PCT/DE2019/100138 WO2019219110A1 (en) 2018-05-14 2019-02-12 Hybrid module having torque-transmitting gears

Publications (1)

Publication Number Publication Date
CN112074428A true CN112074428A (en) 2020-12-11

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Application Number Title Priority Date Filing Date
CN201980028026.8A Pending CN112074428A (en) 2018-05-14 2019-02-12 Hybrid module with a torque-transmitting gear

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Country Link
EP (1) EP3793851A1 (en)
CN (1) CN112074428A (en)
DE (2) DE102018111410A1 (en)
WO (1) WO2019219110A1 (en)

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WO2004053350A1 (en) * 2002-12-10 2004-06-24 Singapore Technologies Kinetics Ltd A hybrid driving device and clutch/damper mechanism therefor and methods relating thereto
US20130296099A1 (en) * 2010-12-15 2013-11-07 Bayerische Motoren Werke Aktiengesellschaft Hybrid Drive
CN104723862A (en) * 2013-12-19 2015-06-24 格特拉格传动机构和齿轮工厂赫尔曼·哈根迈尔有限公司&两合公司 Hybrid power train for a motor vehicle
DE102015121157A1 (en) * 2015-12-04 2017-06-08 Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg Hybrid powertrain
WO2018046058A1 (en) * 2016-09-07 2018-03-15 Schaeffler Technologies AG & Co. KG Hybrid drive train having intermediate gear
WO2018073378A1 (en) * 2016-10-20 2018-04-26 Getrag Ford Transmissions Gmbh Drive assembly comprising an electrical machine for a motor vehicle

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EP3793851A1 (en) 2021-03-24
DE112019002453A5 (en) 2021-02-04
DE102018111410A1 (en) 2019-11-14
WO2019219110A1 (en) 2019-11-21

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Application publication date: 20201211