CN113492666A - Hybrid drive train - Google Patents

Hybrid drive train Download PDF

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Publication number
CN113492666A
CN113492666A CN202110293912.2A CN202110293912A CN113492666A CN 113492666 A CN113492666 A CN 113492666A CN 202110293912 A CN202110293912 A CN 202110293912A CN 113492666 A CN113492666 A CN 113492666A
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CN
China
Prior art keywords
input shaft
rotor
drive train
hybrid drive
axially
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Pending
Application number
CN202110293912.2A
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Chinese (zh)
Inventor
斯蒂芬·梅恩沙因
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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 date
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Publication of CN113492666A publication Critical patent/CN113492666A/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
    • B60K6/42—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
    • B60K6/22—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
    • B60K6/40—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
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • F16D1/101—Quick-acting couplings in which the parts are connected by simply bringing them together axially without axial retaining means rotating with the coupling
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/60—Clutching elements
    • F16D13/64—Clutch-plates; Clutch-lamellae
    • F16D13/644—Hub construction
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
    • F16D3/06—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
    • 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
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/60—Clutching elements
    • F16D13/64—Clutch-plates; Clutch-lamellae
    • F16D13/648—Clutch-plates; Clutch-lamellae for clutches with multiple lamellae
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • F16D2001/103—Quick-acting couplings in which the parts are connected by simply bringing them together axially the torque is transmitted via splined connections
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
    • F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
    • F16D25/087—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation the clutch being actuated by the fluid-actuated member via a diaphragm spring or an equivalent array of levers
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The invention relates to a hybrid drive train (1) for a motor vehicle, comprising an electric machine (5) having a rotor (7) and an input shaft (4) of a downstream drive train device, which is operatively connected to the rotor (7), wherein a connecting device (9) connected to the rotor (7) is arranged on the input shaft (4, 4b) in a rotationally fixed and axially floating manner. In order to simplify the assembly of the hybrid drive train (1) and to compensate for axial deviations between the rotor (7) and the input shaft (4), the connecting device (9) is accommodated on the input shaft (4) by means of a spring element (30) which is arranged effectively between the connecting device (9) and the input shaft (4) in an axially prestressed manner relative to a stop (28) of the rotor (7).

Description

Hybrid drive train
Technical Field
The invention relates to a hybrid drive train for a motor vehicle, comprising an electric machine having a rotor and an input shaft, which is operatively connected to the rotor, of a downstream drive train device, wherein a connecting device connected to the rotor is connected to the input shaft in a rotationally fixed and axially floating manner.
Background
Hybrid drive trains of the same type have an internal combustion engine and an electric machine, which are connected to one another directly or via an intermediate separating clutch. Downstream of the rotor of the electric machine, a drive train device, for example a transmission with an input shaft, is provided. For connecting the rotor to the input shaft, a connecting device is provided, which is connected to the rotor and the input shaft in a rotationally fixed manner and is arranged axially floating on this input shaft, as is known, for example, from the publications DE 102014222644 a1 and DE 102016217220 a 1.
Disclosure of Invention
The object of the invention is therefore to improve a hybrid drive train of the same type. The object of the invention is in particular to provide a hybrid drive train which is easy to install and which allows axial tolerance compensation.
The solution of the invention to solve the above technical problem lies in the solution of claim 1. The dependent claims of claim 1 describe advantageous embodiments of the solution of claim 1.
The hybrid drive train proposed is used in particular for a motor vehicle and comprises an internal combustion engine and an electric machine which can be coupled to the internal combustion engine directly or by means of a separating clutch. Between the crankshaft of the internal combustion engine and the rotor of the electric machine, a separating clutch, which is optionally provided, can be arranged upstream or downstream of the torsional vibration damper (for example a dual-mass flywheel).
Downstream of the rotor, a drive train device is provided, for example an activatable or automatically switchable multi-stage transmission, such as a dual clutch transmission or a Continuously Variable Transmission (CVT), which is connected between the rotor and the drive wheels. The drive train arrangement may comprise a friction clutch, a double clutch, a hydrodynamic torque converter, etc. operatively connected to the rotor. In this case, this rotor is effectively connected to the input shaft of the drive train arrangement, for example, in a rigid torsional (torsion-resistant) or elastic torsional manner, in order to transmit the applied torque. For this purpose, a connecting device is used, which is connected to the input shaft in a rotationally fixed and axially floating manner.
In order to connect an electric motor or a hybrid head device consisting of an internal combustion engine and an electric motor to an input shaft in an improved manner in order to be able to compensate for a deviation between the rotational axis of the hybrid head device and the input shaft and to be able to be mounted between the hybrid head device and a downstream drive train device between a connecting device and the input shaft, the connecting device is accommodated on the input shaft by means of a spring element which is effectively arranged between the connecting device and the input shaft in an axially prestressed manner relative to a stop of the rotor. This means that the connecting device is received in a rotationally fixed manner, for example, on the internal toothing of the rotor and, after connecting the rotor or the mixing head arrangement to the input shaft, is axially preloaded against the rotor. This means that the connection device does not have to be or only has to be fixed axially on the rotor in advance to prevent detachment, so that axial installation space can optionally be saved by eliminating stops in both axial directions, in order to save both axial installation space and installation costs.
The axial pretensioning between the connecting device and the input shaft is achieved by means of spring elements (e.g. helical compression springs, disc springs, diaphragm springs, etc.), which are axially supported on the connecting device on the one hand and directly or indirectly on the input shaft on the other hand. A plurality of identical spring types or a combination of these spring types may form a spring element in series and/or in parallel. For example, a linear, decreasing or increasing characteristic curve can be formed by axial pretensioning of the spring element.
The spring element can be arranged, for example, directly between the input shaft and the connecting device with an axial pretension. For this purpose, for example, a circumferential axial stop, for example an annular edge, can be provided on the input shaft, on which circumferential axial stop the spring element bears. Alternatively, the spring element can be accommodated on a diameter which is reduced relative to the diameter of the input shaft, wherein the spring element is supported on a projection which is formed between the diameters. On the opposite side, the spring element is supported on the connecting device. The connecting device can axially overlap the spring element in the manner of a sleeve.
Alternatively, the pressure element acting on the connecting device can be accommodated on the input shaft in an axially displaceable and pretensioned manner. This pressure element can be accommodated, for example, on the input shaft in a manner such that it can be axially displaced in a limited manner by means of a stop, in a manner such that it is held in a manner such that it cannot be released before the connection between the input shaft and the connecting device is established. In this case, the spring element is arranged between the stop of the input shaft and the pressure element. In this case, this pressure element acts axially rigidly on the connecting device.
In an advantageous embodiment of the proposed hybrid drive train, the connecting device can be designed as a torsional vibration damper having an input part connected in a rotationally fixed manner to the rotor, an output part connected in a rotationally fixed manner to the input shaft, and a spring device acting axially between the input part and the output part. The spring device comprises, for example, a helical compression spring or a set of helical compression springs arranged in a circumferential manner on one or more diameters, respectively, to form a single-stage or multi-stage characteristic curve. The torsional vibration damper can be designed as a disc damper, wherein the input part and the output part each have at least one disc-shaped part which can be rotated in a limited manner about a rotational axis and has a spring window in which the helical compression spring is accommodated. For example, two disk elements connected to one another at a distance axially apart can be provided on the input side or on the output side, wherein at least one of the input-side disk elements or the design connected to the disk element can be connected in a rotationally fixed manner to the internal toothing of the rotor, and the other disk element can form an axial stop for the input element with the rotor (for example the end face of the rotor facing the transmission side). The output-side disk element may comprise, in one piece or separately, an output hub which is received by means of internal teeth on external teeth of the input shaft in a rotationally fixed and axially displaceable manner.
The pretensioning of the connecting device designed as a torsional vibration damper can be provided relative to the input part of the torsional vibration damper. This means that the spring element acts directly or, preferably, a pressure element prestressed by this spring element axially on the input part and axially pretensions this input part against the rotor. In the case of an input part consisting of two axially spaced disk-shaped parts, the disk-shaped part acted on axially by the spring element can, for example, be preloaded against the rotor, while the other disk-shaped part forms a rotationally fixed connection with this rotor. In an alternative embodiment of the hybrid drive train with a connecting device designed as a torsional vibration damper, the output part can be axially preloaded with respect to the input shaft.
The input part and the output part of the torsional vibration damper can be axially preloaded relative to one another, for example, in order to position two disk-shaped parts which are axially spaced apart and connected to one another and a disk-shaped part which is arranged between these two disk-shaped parts relative to one another.
In an alternative embodiment of the hybrid drive train with a connecting device designed as a torsional vibration damper, the connecting device is designed in a rotationally fixed manner (rigidly torsionally). In this case, the connecting element is designed, for example, as a disk element with an integrated or separate output hub, wherein the disk element is connected radially on the outside with a rotary fit to the rotor and is axially preloaded by the spring element against the rotor (for example against a retaining ring or the like).
However, in order to provide a rotationally fixed connection with means for torsional vibration isolation of the torsional vibrations remaining after the optionally upstream torsional vibration damper, the centrifugal pendulum can be integrated into the rotationally fixed connection. In this case, the connecting device serves as a pendulum mass carrier on which pendulum masses suspended in a pivotable manner are suspended in a distributed manner over the circumference in the centrifugal force field of the rotor rotating about the axis of rotation. The pendulum mass carrier can be designed as a pendulum flange with pendulum masses arranged on both sides, wherein axially opposite pendulum masses are connected to one another by means of connecting elements (e.g. distance bolts, intermediate pieces, etc.) which pass through recesses of the pendulum flange. The self-aligning bearing, which generates the wobble capacity, can be formed by raceways arranged on the pendulum masses and the recesses of the pendulum flange, on which raceways the pendulum rollers, which pass through the recesses, roll. Alternatively, the self-aligning bearing can be formed by a raceway which is radially superposed in one plane on the recess of the pendulum flange and the intermediate piece passing through the recess, and a pendulum roller which rolls on the raceway. For each pendulum mass unit composed of two axially opposite pendulum masses, two self-aligning bearings can be provided which are arranged at a distance from one another in the circumferential direction around the center of gravity of the pendulum mass units.
In an alternative embodiment of the connecting device with an integrated centrifugal pendulum, the connecting device can be formed by two axially spaced disk-shaped parts which are connected to one another and between which the pendulum masses arranged distributed over the circumference are accommodated as pendulum mass carriers. In this embodiment, the self-aligning bearings are formed between raceways machined on axially opposite recesses of the disc-shaped member and the oscillating mass, respectively, and oscillating rollers that pass through the recesses and roll on the raceways.
A friction device acting in the circumferential direction may be provided between the rotor and the input shaft, for example, in order to damp circumferential play in a rotationally engaged connection (for example, a mesh between the rotor and the connection device and/or between the input shaft and the connection device). For example, a frictional engagement can be provided at the frictional contact between the spring or pressure element and the connecting device (for example, an input or output part of a torsional vibration damper, a pendulum mass carrier of a centrifugal pendulum or a disk-shaped part designed in a rotationally fixed manner), which frictional engagement acts in the circumferential direction in the circumferential gap (for example, backlash, etc.) in the event of a relative rotation, in order to prevent or at least reduce hard metal impacts, such as rattling noises or load impacts, when changing the direction of the applied torque. The frictional engagement can be designed as a metallic friction pair/metal, preferably a friction ring can be inserted, for example, between the spring or pressure element and the connecting device to stabilize the frictional engagement, and the frictional engagement can be arranged in a rotationally fixed manner on one of the components that can be rotated to a limited extent relative to one another.
Drawings
The present invention will be described in detail with reference to the embodiments shown in fig. 1 to 8. Wherein:
figure 1 is a partial cross-sectional view of the upper portion of a hybrid drive train arranged about a rotational axis,
figure 2 is a cross-sectional detail of the varying pretension of the coupling device relative to the hybrid drive train of figure 1,
figure 3 is a cross-sectional detail of the pretensioning of the connecting device modified in relation to figures 1 and 2,
fig. 4 is a sectional detail of the pretensioning between the input part and the output part of the torsional vibration damper, which is changed in relation to fig. 1 to 3.
Figure 5 shows a friction device arranged between the input shaft and the coupling device,
figure 6 is a sectional detail of a modified embodiment of the axial stop with respect to the axial stop of the connection device on the rotor of figure 1,
FIG. 7 is a sectional view of the upper part of the connecting device with a centrifugal pendulum modified with respect to FIG. 1, an
Fig. 8 is an upper portion of a modified connection device relative to the connection device of fig. 7.
Detailed Description
Fig. 1 is a sectional view of an upper part of a hybrid drive train 1 arranged about a rotational axis d, which is only partially illustrated. The hybrid head apparatus 2 is arranged between an unillustrated internal combustion engine and an unillustrated transmission that extends downstream to a drive train of drive wheels. The shaft body 3 connects the hybrid head unit 2 to the internal combustion engine, and the input shaft 4 connects this hybrid head unit to the transmission.
The hybrid head apparatus 2 comprises a motor 5 having a stator 6 and a rotor 7. The separating clutch 8 and the connecting device 9, which is designed here as a torsional vibration damper 10, are arranged radially inside the rotor 7.
The housing 11 of the hybrid head unit 2 is firmly connected to the housing of the internal combustion engine and accommodates the stator 6. The rotor 7 is supported on the housing 11 in a rotatable and axially fixed manner by means of a bearing arrangement 12. The separating clutch 8 is arranged as a wet-operating and pressed-on multi-disk clutch between the shaft body 3 and the rotor and is hydraulically actuated by means of an actuating device 13.
The coupling device 9 forms a connection between the rotor 7 and the input shaft 4, and in the exemplary embodiment shown, the input shaft 4 is designed in a torsionally elastic manner by means of a torsional vibration damper 10 integrated into the coupling device 9.
The input member 14 is formed by two disc-shaped members 15, 16 axially spaced apart and connected to each other by means of distance bolts 17. The output part 18 is formed by a disk-shaped part 19 which is arranged axially between the two disk-shaped parts 15, 16 and which has, radially on the inside, an output hub 20 which is integrally formed in this case and which is connected to the input shaft 4 by means of internal teeth 21 in a rotationally fixed and axially displaceable manner. The disk elements 15, 16, 19 have spring windows 22 distributed over the circumference, in which the helical compression springs 24 of the spring device 23 acting in the circumferential direction between the input element 14 and the output element 18 are arranged distributed over the circumference and are stressed in the circumferential direction in the event of a relative rotation between the input element 14 and the output element 18.
The disk element 15 is connected, for example riveted, to a disk-shaped drive element 25, which is accommodated in an axially displaceable and rotationally fixed manner radially on the outside in an internal toothing 26 of the rotor 7.
In order to fix the torsional vibration damper 10 or the connecting device 9 axially relative to the rotor 7, the input part 14 is axially preloaded relative to the input shaft 4, so that the radially extending disk-shaped part 16 of the input part 14 forms an axially preloaded stop, for example an axial stop 28, on the end face 27 of the rotor. This pretension is formed by means of a pressure element 29 arranged around the input shaft 4. The pressure element 29 is in contact with the disk element 16 and is axially prestressed against the input shaft 4 by means of a spring element 30. For this purpose, the spring element 30 is axially preloaded between the pressure element 29 and a stop 31 of the input shaft 4.
For axial positioning of the output member 18 relative to the input member 14, the spring element 32 is axially preloaded between the disk members 15, 19 so that the disk member 19 abuts against the projection 33 of the disk member 16. In the unengaged state of the hybrid head device 2, the locking ring 34 arranged on the input shaft 4 forms a disengagement-prevention means for the pressure element 29 and the spring element 30.
In the event of relative rotation between the input member 14 and the output member 18, friction occurs between the pressure member 29 and the disc member 16 at the friction point 35. This friction can be provided as a friction hysteresis of the torsional vibration damper 10. Furthermore, backlash between the drive member 25 and the rotor 7, and optionally between the output hub 20 and the input shaft 4, can be superimposed with the friction torque, thereby eliminating or at least reducing any rattle and impact noise that may occur during torque reversals.
The hybrid drive train 1 is preferably mounted as follows: the hybrid head unit 2 is fixed to the housing of the internal combustion engine. In this case, the hybrid head apparatus 2 already comprises a connecting device 9 with a torsional vibration damper 10. This enables the transmission to be visibly engaged with the input shaft 4 and simplifies the mounting of the transmission by engaging an invisible connection between the rotor 7 and the connecting device. By means of this engagement process, the connecting device 9 is axially fixed by forming a stop between the rotor 7 and the disk element 16, in that the disk element 16 is axially loaded by means of a pressure element 29 prestressed by means of a spring element 32.
Referring to fig. 1, fig. 2 shows a pretensioned upper part of a connecting device 9a, which is modified from fig. 1, and which can be used in the hybrid drive train 1 instead of the connecting device 9 of fig. 1. In this case, the pressure element 29 acted on axially by the spring element 30 pretensions the output hub 20a by means of the disk element 19a of the output element 18a of the torsional vibration damper 10 a. The prestress is transmitted to the disk element 16a of the input element 14a of the torsional vibration damper 10a, which forms a stop for the rotor 7, by a spring element 32a, which transmits the displacement of the disk element 19a to the disk element 15a and from there to the disk element 16a, which is firmly connected to the disk element 15 a.
In contrast to the pretensioning of the connection devices 9, 9a from fig. 1 and 2, fig. 3 shows in sectional detail a modified direct pretensioning of the connection device 9b by means of a pressure element. For this purpose, a component 36b, for example a disk-shaped part of the output hub or of the input part of the torsional vibration damper of the connecting device 9b, is arranged on a shoulder 37b of the input shaft 4b, which is arranged around the rotational axis d, with a smaller diameter. The spring element 30b, for example a helical compression spring 38b, axially pretensions the component 36b and is supported on a stop 39b of the input shaft 4 b. The member 36b may overlap the spring member 30b in a sleeve manner.
Fig. 4 shows the upper part of a connecting device 9c modified with respect to the connecting device 9a of fig. 2. The output part 18c of the torsional vibration damper 10c of the connecting device 9c is axially acted upon by the pressure element 29 in a manner comparable to the connecting device 9 a. Unlike the connecting device 9a, the axial prestress is transmitted from the output hub 20c with the disk element 19c to the disk element 15c of the input element 14c by direct contact with the disk element 19 c. In this case, the disk element 16c, which is firmly connected to the disk element 15c, forms an axial stop by means of the rotor of the electric machine according to fig. 1. After the axial stop between the disk element 16c and the rotor has been formed, the disk elements 15c, 16c, 19c are axially positioned relative to one another by means of the spring elements 32c and 30 in force equilibrium.
Fig. 5 is a cross-sectional detail view of a modified connection means 9d with respect to the connection means 9a of fig. 2. In contrast to the connecting device 9a, a friction ring 40d is arranged centrally on the output hub 20d between the pressure piece 29 and the disk element 19 d. The friction ring 40d sets a predetermined friction torque for reducing tooth noise. Since there is no relative rotation between the input and output members of the torsional damper, there is no hysteresis covering this torsional damper.
With reference to fig. 1, fig. 6 shows in sectional detail an axial stop 28e of the connecting device 9e, which is designed instead of the axial stop 28 of fig. 1. For this purpose, the locking ring 41e is axially biased against the disk-shaped part 15e of the input part 14e of the torsional vibration damper 10e by a spring element 30 arranged radially inside on the input shaft 4 on the internal teeth 26e of the rotor 7.
Referring to fig. 1, fig. 7 and 8 show in cross-section the upper parts of coupling devices 9f, 9g, respectively, suitable for the hybrid drive train 1, instead of the coupling device 9. The connecting devices 9f, 9g are arranged in a rotationally fixed manner between the rotor 7 and the input shaft 4 and are axially prestressed against the rotor 7 by means of a pressure element 29 and a spring element 30 axially supported on the input shaft 4, forming axial stops 28, 28 e.
The coupling devices 9f, 9g have centrifugal weights 41f, 41g for torsional vibration isolation in accordance with the rotational speed.
The connecting device 9f in fig. 7 comprises two disk-shaped parts 15f, 16f which are fastened to the output hub 20f at an axial distance from one another and together form a pendulum mass carrier 42f of the centrifugal pendulum 41 f. For this purpose, the disk elements 15f, 16f receive pendulum masses 43f arranged distributed over the circumference between them and form two self-aligning bearings 44f spaced apart in the circumferential direction for each pendulum mass. The self-aligning bearing 44f is formed of recesses 45f, 46f having axially opposed raceways 47f, 48f on which the wobble roller 49f rolls.
The disk element 15f is connected in a rotationally fixed manner to the internal toothing 26 of the rotor 7, while the disk element 16f forms an axial stop 28 for the rotor 7.
The coupling device 9g of fig. 8 comprises an output hub 20g which engages with the input shaft 4 and has a disk-shaped part 15g which is designed as a pendulum-flange-like pendulum mass carrier 42g and has pendulum masses 43g arranged distributed over the circumference on both sides, wherein axially opposite pendulum masses 43g are connected together by means of a connecting element 50g which passes through the disk-shaped part 15g to form a pendulum mass unit. A self-aligning bearing is provided between the pendulum mass units and the pendulum mass support 42g in a manner not shown.
The disk element 15g is connected radially on the outside with the internal toothing 26 of the rotor in a rotationally fixed manner and is axially prestressed against the locking ring 41e by means of a pressure element 29, forming an axial stop 28 e.
List of reference numerals
1 hybrid drive train
2 mix-action head apparatus
3 axle body
4 input shaft
4b input shaft
5 electric machine
6 stator
7 rotor
8 separating clutch
9 connecting device
9a connecting device
9b connecting device
9c connecting device
9d connecting device
9e connecting device
9f connecting device
9g connecting device
10 torsional vibration damper
10a torsional vibration damper
10c torsional vibration damper
10e torsional vibration damper
11 casing
12 bearing structure
13 operating device
14 input unit
14a input member
14c input unit
14e input unit
15 disc-shaped component
15a disc shaped member
15c disc shaped component
15e disc-shaped component
15f disc-shaped part
15g disc-shaped component
16 disc-shaped component
16a disc shaped member
16c disc shaped member
16f disc-shaped part
17 distance bolt
18 output member
18a output member
18c output member
19 disc-shaped component
19a disc shaped member
19c disc shaped component
19d disc shaped component
20 output hub
20a output hub
20c output hub
20d output hub
20f output hub
20g output hub
21 internal tooth
22 spring window
23 spring device
24 helical compression spring
25 drive member
26 inner teeth
26e internal teeth
27 end face
28 axial stop
28e axial stop
29 pressure piece
30 spring element
30b spring element
31 stop
32 spring element
32a spring element
32c spring element
33 convex
34 locking ring
35 friction point
36b member
37b shoulder
38b helical compression spring
39b stop
40d friction ring
41e lock ring
41f centrifugal pendulum
41g centrifugal pendulum
42f pendulum mass support
42g pendulum mass support
43f pendulum mass
43g pendulum mass
44f self-aligning bearing
45f recess
46f concave part
47f raceway
48f raceway
49f swing roller
50g connecting piece
d axis of rotation

Claims (10)

1. Hybrid drive train (1) for a motor vehicle, comprising an electric machine (5) having a rotor (7) and an input shaft (4, 4b) of a downstream drive train device, which is operatively connected to the rotor (7), wherein a connecting device (9, 9a, 9b, 9c, 9d, 9e, 9f, 9g) connected to the rotor (7) is accommodated on the input shaft (4, 4b) in a rotationally fixed and axially floating manner, characterized in that the connecting device (9, 9a, 9b, 9c, 9d, 9e, 9f, 9g) is accommodated on the input shaft (4, 4b) in an axially preloaded manner relative to a stop (28, 28e) of the rotor (7) by means of a spring element (30, 30b) which is operatively arranged between the connecting device (9, 9a, 9b, 9c, 9d, 9e, 9f, 9g) and the input shaft (4, 4b), 4b) The above.
2. Hybrid drive train (1) according to claim 1, characterized in that a spring element (30b) is arranged directly between the input shaft (4b) and the connecting device (9b) with an axial pretension.
3. Hybrid drive train (1) according to claim 1, characterized in that a pressure element (29) acting on the connecting means (9, 9a, 9c, 9d, 9e, 9f, 9g) is received on the input shaft (4) in an axially movable and pretensioned manner.
4. Hybrid drive train (1) according to one of claims 1 to 3, characterized in that the connecting device (9, 9a, 9c, 9d, 9e) is designed as a torsional vibration damper (10, 10a, 10c, 10e) having an input part (14, 14a, 14c, 14e) connected in a rotationally fixed manner to the rotor (7), an output part (18, 18a, 18c) connected in a rotationally fixed manner to the input shaft (4) and a spring device (23) acting in the circumferential direction between the input part and the output part.
5. Hybrid drive train (1) according to claim 4, characterized in that the input part (14) is axially pre-tensioned against the input shaft (4).
6. Hybrid drive train (1) according to claim 4, characterized in that the output part (18a, 18c) is axially pre-tensioned against the input shaft (4).
7. Hybrid drive train (1) according to claim 5 or 6, characterized in that the input part (14, 14a, 14c, 14e) and the output part (18, 18a) are axially preloaded with respect to each other.
8. Hybrid drive train (1) according to one of the claims 1 to 3, characterized in that the connecting means (9f, 9g) are designed in a torsion-proof manner.
9. Hybrid drive train (1) according to one of the claims 1 to 8, characterized in that a centrifugal pendulum (41f, 41g) is integrated into the connecting means (9f, 9 g).
10. Hybrid drive train (1) according to one of the claims 1 to 9, characterized in that a circumferentially acting friction device is provided between the rotor (7) and the input shaft (4).
CN202110293912.2A 2020-03-20 2021-03-19 Hybrid drive train Pending CN113492666A (en)

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DE102020107702.5A DE102020107702B4 (en) 2020-03-20 2020-03-20 Hybrid powertrain

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DE102021117752A1 (en) 2021-07-09 2023-01-12 Schaeffler Technologies AG & Co. KG Clutch device for a hybrid drive train of a motor vehicle

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JP4427866B2 (en) 1999-12-17 2010-03-10 アイシン・エィ・ダブリュ株式会社 motor
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