CN107850140B

CN107850140B - Torque transmission device and method for operating a torque transmission device

Info

Publication number: CN107850140B
Application number: CN201680042167.1A
Authority: CN
Inventors: 哈特穆特·蒙德; 菲利普·施韦德勒
Original assignee: Schaeffler Technologies AG and Co KG
Current assignee: Schaeffler Technologies AG and Co KG
Priority date: 2015-07-30
Filing date: 2016-07-28
Publication date: 2020-06-30
Anticipated expiration: 2036-07-28
Also published as: DE102015214455A1; DE112016003452A5; WO2017016564A1; CN107850140A

Abstract

A torque transmission device, in particular for a drive train of a motor vehicle, having at least one input part and at least one output part, which have a common rotational axis, wherein the torque transmission device has an electromechanical control device (100) for controlling the torque transmission, and the electromechanical control device (100) has: at least one first control module (104) on the torque transmission device side; at least one second anti-rotation control module (106); and at least one wireless and at least optionally bidirectional interface, which is arranged between the at least one first control module (104) and the at least one second control module (106), and a method for operating such a torque transmission device, wherein signals and/or electrical energy are transmitted between the at least one first control module (104) and the at least one second control module (106) via the at least one interface in order to control the torque transmission between the at least one input component and the at least one output component.

Description

Torque transmission device and method for operating a torque transmission device

Technical Field

The invention relates to a torque transmission device, in particular for a drive train of a motor vehicle, having at least one input part and at least one output part, which have a common rotational axis. The invention also relates to a method for operating such a torque transmission device.

Background

DE 102009015151 a1 discloses a friction clutch having an axially fixed counter plate and a pressure plate arranged in a rotationally fixed and axially displaceable manner relative to the counter plate, as well as a driven plate which can be clamped axially between the counter plate and the pressure plate, wherein an actuating device adjusts the axial distance between the counter plate and the pressure plate in order to actuate the friction clutch, wherein the pressure plate is actuated by means of a relative rotation of a ramp device which acts between the pressure plate and a component fixed to the housing, said ramp device being acted upon by an electromagnetically driven actuator of the actuating device.

DE 102013215024 a1 discloses a friction clutch having an actuating device with a pressure plate, a counter-pressure plate and a clutch cover, wherein a driven plate can be accommodated between the pressure plate and the counter-pressure plate, wherein the pressure plate is designed in a ring shape, wherein the actuating device has a ramp device between the pressure plate and the clutch cover for axially displacing the pressure plate, and further has an actuator for rotating the pressure plate in the circumferential direction relative to the clutch cover, wherein the clutch cover has a carrier element, such that the actuator is supported radially on the carrier element, either radially on the inside or on the outside, and on the pressure plate, either radially on the outside or on the inside. The actuator has at least one longitudinal expansion element with at least one piezoelectric element or a stack of piezoelectric elements.

From german patent application No. 102015203282.5, a clutch having an electrically operated actuating device is known, wherein the actuating device has a first actuator and at least one further actuator, wherein the first and further actuators are arranged on a rotatable component of the clutch and can be actuated by means of a signal transmitter, which is arranged fixedly in relation to the rotatable component, and a transmission channel, wherein the clutch further has a first signal filter and at least one further signal filter, which are arranged in each case on the rotatable component of the clutch, wherein the first signal filter is designed to: a first signal component is extracted from the control signal output by the signal transmitter and forwarded to the first actuator, and the further signal filter is designed to: a further signal component is extracted from the actuating signal and forwarded to a further actuator.

Disclosure of Invention

The object on which the invention is based is: the torque transmission device initially proposed is structurally and/or functionally improved. The invention is also based on the following object: the method initially proposed is improved. In particular, increased demands on the torque transmission device should be met. In particular, the controllability of the torque transmission device should be improved. In particular, the external controllability of the torque transmission device should be improved.

The object is achieved by a torque transmission device, in particular for a drive train of a motor vehicle, having at least one input part and at least one output part, which have a common rotational axis, wherein the torque transmission device has an electromechanical control device for controlling the torque transmission, and the electromechanical control device has: a first control module on the at least one torque transmitting device side; at least one second anti-rotation control module; and at least one wireless and at least selectively bi-directional interface disposed between the at least one first control module and the at least one second control module.

The torque transmission device can be used in a drive train of a motor vehicle. The drive train can have an internal combustion engine. The powertrain can have a torque transmitting device. The drive train can have at least one drivable wheel. The terms "input member" and "output member" currently relate to the direction of power flow from the internal combustion engine.

The torque transmission device can be a torsional vibration damper. The torsional vibration damper can be a dual mass flywheel. The torsional vibration damper can be used for: reducing torsional oscillations excited by the periodic process. Torsional vibration dampers can be used to reduce torsional vibrations excited by internal combustion engines. The torsional vibration damper can have an input part and an output part which have a common axis of rotation and about which the input part and the output part can be jointly rotated and can be rotated in a limited manner relative to one another, and a spring damping device which acts between the input part and the output part.

The spring absorber device can have a spring device. The spring device can have at least one energy store. At least one energy store can be supported on the one hand on the input part and on the other hand on the output part. The at least one energy store can be a coil spring. The at least one energy store can be a pressure spring. The at least one energy reservoir can be an arcuate spring. The spring damping device can have a friction device. The input member is operable for driving connection with an internal combustion engine. The output part can be used for driving connection with the friction clutch device.

The input part can have a flange section. The input component can have a cover section. The flange section and the cover section can delimit a receiving space for the at least one energy store. The accommodating space can have an annular shape. The input part can have a support section for the at least one energy store, which extends into the receiving space. The output part can have a flange part. The flange part can be arranged axially between the flange section and the cover section. The flange member can have a radially outwardly projecting protrusion. The projection can protrude into the accommodation space. The projection can serve as a support section for the output part side of the at least one energy store. The output part can have a flywheel mass. The flange part and the flywheel mass part can be fixedly connected to one another, in particular riveted. The torsional vibration damper can have a bearing device for rotatably supporting the input mass and the output mass relative to each other. The bearing device can have a rolling bearing, in particular a ball bearing.

The torque transmitting device can be a friction clutch device. The friction clutch device can have an input part and at least one output part. The friction clutch device can have a single clutch. The friction clutch device can have a double clutch. The friction clutch device can have a one-piece clutch. The friction clutch device can have a multiplate clutch. The friction clutch device can have a normally open clutch. The friction clutch can have a normally closed clutch. The friction clutch device can have a pressure clutch. The friction clutch device can have a pull clutch. The friction clutch device can be automatically actuated.

The friction clutch can have a clutch rotational axis, at least one pressure plate, at least one counter plate and at least one driven disk, wherein the counter plate can be axially displaced in a limited manner relative to the at least one pressure plate for actuating the friction clutch, and wherein the driven disk can be clamped between the at least one pressure plate and the at least one counter plate for the friction-fit power transmission. The friction clutch device has a housing. The housing can also be referred to as a cover. The at least one pressure plate and the housing can be fixedly connected to each other. The at least one pressure plate and the housing can be connected to one another in a rotationally fixed and axially fixed manner. The at least one counter plate and the housing can be connected to one another in a rotationally fixed manner. At least one counter plate is axially limitedly displaceable relative to the housing. The input part of the friction clutch device can have a housing, at least one pressure plate and at least one counter pressure plate. The output part of the friction clutch can have at least one driven disk.

The friction clutch can be operated in a fully disengaged operating position, in which substantially no power transmission takes place between the input part and the at least one output part, until a fully engaged operating position, in which substantially full power transmission takes place between the input part and the at least one output part, in which the power transmission between the input part and the at least one output part takes place in a friction-fit manner, allows increased mechanical power transmission in dependence on the operation. In contrast, a reduced mechanical power transmission can be achieved as a function of the actuation starting from a fully engaged actuation position, in which substantially full power transmission takes place between the input element and the at least one output element, up to a fully disengaged actuation position, in which substantially no power transmission takes place between the input element and the at least one output element. The fully engaged operating position can be a closed operating position. The completely disengaged operating position can be a disengaged operating position.

The friction clutch device can be used for: effecting a change in transmission ratio and start-up. The input component and the at least one output component can be connected to each other or separated from each other. In the double clutch, the power flow of the input member can be transferred from the first output member to the second output member and vice versa in a transfer change.

The torque transmission device can have a centrifugal pendulum device. The centrifugal pendulum device can have a rotational axis, a pendulum mass carrier which can be rotated about the rotational axis, and at least one pendulum mass which is arranged on the pendulum mass carrier so as to be displaceable along the pendulum track. The centrifugal pendulum device can be used for: damping torsional vibrations.

At least one pendulum mass can be connected to the pendulum mass carrier in two lines. At least one pendulum mass can be displaced into an operating position by centrifugal force. In the operating position, the at least one pendulum mass can be displaced under the effect of torsional vibrations. In the operating position, at least one pendulum mass can be displaced in order to damp torsional oscillations. At least one pendulum mass can be displaced starting from an intermediate position between the two end positions.

The pendulum mass carrier can have a disk-like or ring-disk-like shape. The pendulum mass carrier can be formed in one piece. The pendulum mass carrier can have a flange-like shape. The pendulum mass carrier can have a single carrier flange. The single support flange can be used to set the pendulum masses bilaterally. The pendulum mass carrier can be formed in multiple parts. The pendulum mass carrier can have a double flange-like shape. The pendulum mass carrier can have a first pendulum mass carrier part and a second pendulum mass carrier part. The first pendulum mass carrier part and the second pendulum mass carrier part can each have an inner ring section and a carrier flange section. The first pendulum mass carrier part and the second pendulum mass carrier part can be arranged with their inner ring sections against one another. The bearing flange sections of the first pendulum mass carrier part and of the second pendulum mass carrier part can be arranged parallel to one another and axially spaced apart from one another. The first pendulum mass carrier part and the second pendulum mass carrier part can be fixedly connected to each other, in particular riveted. The bearing flange sections of the first pendulum mass carrier part and of the second pendulum mass carrier part can delimit a receiving space for the at least one pendulum mass. The pendulum mass carrier can have at least one recess for the rolling body. The at least one recess can be for: and determining the swing track. The at least one recess can have a kidney-like shape.

The at least one pendulum mass can be arranged eccentrically with respect to the axis of rotation. The at least one pendulum mass can have an arcuate shape. The at least one pendulum mass can have a first end and a second end in the circumferential direction of the centrifugal pendulum device. The at least one pendulum mass can have an inner edge in the radial direction of the centrifugal pendulum device. The at least one pendulum mass can have an outer edge in the radial direction of the centrifugal pendulum device. The at least one pendulum mass can have at least one recess for the rolling body. The at least one recess can be for: and determining the swing track. The at least one recess can have a kidney-like shape.

At least one pendulum mass can be formed in one piece. At least one pendulum mass can be arranged in the receiving space delimited by the carrier flange. The at least one pendulum mass can have a first pendulum mass part and a second pendulum mass part. The first pendulum mass part and the second pendulum mass part can be fixedly connected to each other, in particular riveted. The first pendulum mass part and the second pendulum mass part can be arranged parallel to each other and axially spaced apart from each other. The first pendulum mass part and the second pendulum mass part can be arranged on both sides of the pendulum mass carrier. The centrifugal pendulum device can have a plurality of pendulum masses, for example four pendulum masses.

The control device can have mechanical, electronic and information-technology components and/or modules. The components and/or modules of the control device can interact. "control" currently means: "closed loop control" and/or "open loop control".

The at least one first control module is capable of autonomous operation. The at least one first control module can be encapsulated. The at least one first control module can have a housing. The at least one first control module can be fixedly connected to the torque transmission device, so that the first control module and the torque transmission device can be rotated relative to each other about a rotational axis. The at least one first control module can have at least one sensor. The at least one sensor can be an acceleration sensor, a rotational speed sensor, a pressure sensor, a temperature sensor or a torque sensor. The at least one first control module can have at least one actuator. At least one actuator is operable to: affecting torque transmission by the torque transmitting device. The at least one actuator can have an electric, hydraulic and/or pneumatic drive. The at least one actuator can have a transmission. The at least one first control module can have at least one electrical energy store. The at least one electrical energy storage can be a battery. The battery can be a primary battery or a secondary battery. The at least one electrical energy storage can be a capacitor. The at least one first control module can have a transmitting device. The at least one first control module can have a receiving device. At least one first control module can have combined transmitting and receiving means. The at least one first control module can have an antenna. The at least one first control module can have a coupling coil.

The at least one second control module can have a housing. At least one second control module can be arranged in a rotationally fixed manner relative to the rotatable torque transmission device. The at least one second control module can have a transmitting device. The at least one second control module can have a receiving device. At least one second control module can have combined transmitting and receiving means. The at least one second control module can have an antenna. The at least one second control module can have a coupling coil. The at least one second control module can have at least one interface for connection to at least one electrical control device. The at least one interface for connection with the at least one electrical control device can be cable-connected. The at least one second control module can have at least one plug connector part. The at least one second control module can have electrical signal terminals and/or electrical power terminals.

"bidirectional" currently means: transmissions from the first control module to the second control module and from the second control module to the first control module can be made. "at least selectively" currently means: for at least one transport object, a bidirectional transport is possible. Bidirectional transmission does not necessarily have to be possible for all transmission objects. For example, the signal can be transmitted bi-directionally, while energy can only be transmitted uni-directionally from the second control module to the first control module.

The signal can be transmitted by means of at least one interface. By means of the at least one interface, signals can be transmitted from the first control module to the second control module. By means of the at least one interface, signals can be transmitted from the second control module to the first control module. The signal can be used to transmit information. The signal can be a radio signal. The radio signal can correspond to a transmission standard, such as Near Field Communication (NFC). The electrical energy can be transmitted by means of at least one interface. By means of the at least one interface, electrical energy can be transmitted contactlessly from the second control module to the first control module in order to drive or supply the first control module with electrical energy. Electrical energy can be transmitted by electric, magnetic and/or electromagnetic fields. The electrical energy can be transferred inductively.

The object on which the invention is based is also achieved by means of a method of this type for operating a torque transmission device, wherein signals and/or electrical energy are transmitted between at least one first control module and at least one second control module via at least one interface in order to control the transmission of torque between at least one input element and at least one output element.

The coupling between the at least one input part and the at least one output part can be controlled by means of an electromechanical control device, the damping and/or damping properties of the torque transmission device and/or the spring properties of the torque transmission device. The input part and the output part of the torsional vibration damper can be coupled to each other during start-stop by means of an electromechanical control device. The movement of the pendulum mass of the centrifugal pendulum device can be influenced in a rotational speed-dependent manner by means of an electromechanical control device. The impact behavior of the torsional vibration damper can be influenced by means of an electromechanical control device. An "impact" is a shock in this context, which can occur when the torsional vibration damper is overloaded, in particular when the spring is stopped.

Signals can be exchanged between the electromechanical control device and the electrical control device. The electric control device can be a control device of the vehicle, for example a motor control device. The electromechanical control device CAN be connected to a bus system, for example CAN, CAN FD or modified CAN.

In summary and in other words, the control of the damper and the clutch system is also achieved by the invention by means of an external source. The control signals required for the electromechanical damper or clutch system can be transmitted from the vehicle to the rotary system or received by the rotary system via a wireless circuit line. The transmission of information and control signals to the damper and clutch system can be done via wireless circuit lines. In addition to information/signals, energy can also be transmitted contactlessly to the rotating component via said route. The transmission of signals/information/energy can be transmitted from the vehicle to the damper or clutch system and conversely from the damper/clutch system to the vehicle. The electromechanical transmitter/receiver unit on the rotating system can operate autonomously and can also contain actuators for actuating processes in the rotating component in addition to sensors for various parameters, such as acceleration, rotational speed, pressure, temperature, torque. For this purpose, the electromechanical transmitter/receiver unit can be equipped with one or more energy stores, for example with batteries, capacitors. The transmitted signals can be used in damper/clutch systems for different functions. Examples of this are: the coupling of the primary and secondary masses during start/stop, the influence of the movement of the centrifugal pendulum mass in different rotational speed ranges, the influence of the shock behavior of the vibration damper, etc. The transmitted signals can be used in the motor control, i.e. for example for torque measurement, temperature measurement, acceleration measurement, pressure measurement and the like in the rotating component. The transmitted energy can be used, for example, to increase the power of a self-sufficient transmitter/receiver unit in a rotating system and to extend the service life.

By "capable" is meant, inter alia, optional features of the invention. There is thus one embodiment of the invention, each having one or more corresponding features.

The present invention satisfies the need for an improved torque transmission device. The controllability of the torque transmission device is improved. The external controllability of the torque transmission device is improved.

Drawings

Hereinafter, embodiments of the present invention are described in detail with reference to the accompanying drawings. Additional features and advantages are derived from the description. The specific features of this embodiment can be general features of the invention. Features of the described embodiments which are associated with other features can also be individual features of the invention.

Schematic and exemplary illustration:

figure 1 shows an electromechanical control device for controlling the torque transmission of a torsional vibration damper,

fig. 2 shows a control module of the electromechanical control device, which is arranged on the torsional vibration damper and can be rotated with the torsional vibration damper,

FIG. 3 shows an electromechanical control device for controlling the torque transmission of a friction clutch, an

Fig. 4 shows a control module of an electromechanical control device, which is arranged on the friction clutch and can rotate with the friction clutch.

Detailed Description

Fig. 1 shows an electromechanical control device 100 for controlling the torque transmission of a torsional vibration damper 102. The torsional vibration damper 102 is currently a dual mass flywheel. The torsional vibration damper 102 is used in a drive train of a motor vehicle driven by an internal combustion engine, between the internal combustion engine and a friction clutch, in order to reduce rotational irregularities.

The control device 100 has a first control module 104, which is arranged on the torsional vibration damper 102 and can be rotated together with the torsional vibration damper 102. The control device 100 has a second control module 106, which is arranged in a rotationally fixed manner relative to the first control module 104. The first control module 104 has a transceiver 108. The second control module 106 has a transceiver 110. The

transceivers

108, 110 are used to control the radio connections 112 of the

modules

104, 106. Furthermore, the

transceiver

108, 110 serves to inductively couple the

control modules

104, 106. Thereby forming a wireless interface between the

control modules

104, 106. Signals can be transmitted bi-directionally between the

control modules

104, 106 via a wireless interface. Power can be transmitted from the second control module 106 to the first control module 104 via a wireless interface.

Fig. 2 shows a first control module 104 of the electromechanical control device 100, which is arranged on the torsional vibration damper 102 and can rotate with the torsional vibration damper 102. The first control module 104 has sensors, such as 114, 116, 118, 120,

actuators

122, 124, a battery 126, and an antenna 128. The sensors currently include acceleration sensors, rotational speed sensors, pressure sensors, temperature sensors and/or torque sensors. The actuator 124 currently has an electric drive. The battery 126 is currently a secondary battery. The first control module 104 is capable of self-sufficient operation.

Fig. 3 shows an electromechanical control device 200 for controlling the torque transmission of a friction clutch 202. The friction clutch 202 is provided in a drive train of a motor vehicle driven by an internal combustion engine between the internal combustion engine and the transmission in order to shift and start a gear stage of the transmission. The control device 200 has a first control module 204, which is arranged on the friction clutch 202 and can rotate together with the friction clutch 202. The control device 200 has a second control module 206, which is arranged in a rotationally fixed manner relative to the first control module 204. Fig. 4 shows a first control module 204 of the electromechanical control device 200, which is arranged on the friction clutch 202 and can rotate with the friction clutch 202. In addition, reference is made, in particular, to fig. 1 and 2 and the associated description.

List of reference numerals

100 electromechanical control device

102 torsional vibration damper

104 first control module

106 second control Module

108 transmitting and receiving device

110 transmitting and receiving device

112 radio connection

114 sensor

116 sensor

118 sensor

120 sensor

122 actuator

124 actuator

126 electric energy storage, battery

128 antenna

200 electromechanical control device

202 friction clutch

204 first control module

206 second control Module

Claims

1. A torque transmission device having at least one input part and at least one output part, which have a common axis of rotation, characterized in that for controlling the torque transmission device has an electromechanical control device (100, 200), and the electromechanical control device (100, 200) has: at least one first torque transmission device-side control module (104, 204) that can be fixedly connected to the torque transmission device; at least one second anti-rotation control module (106, 206); and at least one wireless and at least optionally bidirectional interface, which is arranged between at least one of the first control modules (104, 204) and at least one of the second control modules (106, 206).

2. The torque transmission device according to claim 1, characterized in that signals can be transmitted by means of at least one of the interfaces.

3. Torque transmitting device according to claim 1 or 2, characterized in that electrical energy can be transmitted by means of at least one of said interfaces.

4. The torque transmission device of claim 1, wherein at least one of the first control modules (104, 204) has at least one sensor (114, 116, 118, 120).

5. The torque transmission device according to claim 1, wherein at least one of the first control modules (104, 204) has at least one actuator (122, 124).

6. The torque transmission device according to claim 1, 2, 4 or 5, characterized in that at least one of the first control modules (104, 204) has at least one electrical energy storage (126).

7. The torque transmission device according to claim 1, characterized in that at least one of the second control modules (106, 206) has at least one interface for connection with at least one electrical control device.

8. The torque transmission device according to claim 1, wherein the torque transmission device is for a powertrain of a motor vehicle.

9. A method for operating a torque transmission device according to one of the preceding claims, characterized in that signals and/or electrical energy are transmitted between at least one of the first control modules (104, 204) and at least one of the second control modules (106, 206) via at least one of the interfaces in order to control the torque transmission between at least one of the input components and at least one of the output components.

10. Method according to claim 9, characterized in that the coupling between at least one of the input components and at least one of the output components is controlled by means of the electromechanical control device (100, 200), the damping and/or dampening properties of the torque transmission device are controlled, and/or the spring properties of the torque transmission device are controlled.

11. Method according to claim 9 or 10, characterized in that signals are exchanged between the electromechanical control device (100, 200) and an electric control device.