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Method for benchmarking the zero point of a self-closing clutch in a motor vehicle

An automatic closing and clutch technology, applied to clutches, mechanical equipment, etc., can solve the problems of affecting the acoustic effect and affecting the life of the clutch control system, etc.

Active Publication Date: 2018-08-21
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lifting and re-impacting the actuator on the release bearing or on the tongue of the disc spring of the clutch negatively affects the life of the clutch actuating system
At the same time, it also affects the acoustic effect

Method used

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  • Method for benchmarking the zero point of a self-closing clutch in a motor vehicle
  • Method for benchmarking the zero point of a self-closing clutch in a motor vehicle
  • Method for benchmarking the zero point of a self-closing clutch in a motor vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] figure 1 A part of a clutch actuation system 1 is shown, as it is used in a motor vehicle with an automatically engaging clutch. In this case, the clutch 2 is actuated by a disk spring which bears against it, the tongue 3 of which bears against the release bearing 4 . The release bearing 4 presses against the release lever 5 , which is operatively connected to the release lever 6 of the clutch actuator 7 . The compression spring 8 is positioned here between the clutch actuator 7 and the actuator rod 6 .

[0026] All of the following Figure 1 On the one hand, the clutch force is shown with respect to the clutch stroke and, on the other hand, the actuator force is shown with respect to the actuator stroke. In the figure, the new state of the clutch 2 is shown with a solid line, while the worn state of the clutch is indicated with a dashed line. In all illustrated exemplary embodiments, the zero point of the clutch actuator 7 is referenced when the clutch is disengag...

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PUM

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Abstract

The invention relates to a method for referencing a zero point of a self-closing clutch in a motor vehicle, wherein a clutch actuator is actuated, which is moved against a stop, wherein the clutch actuator has an actuator force characteristic curve. In a method in which it is avoided that the clutch actuator lifts off from and impacts again the throwout bearing of the clutch or the tongues of the diaphragm spring, the referencing occurs against the stop with the clutch open, wherein the stop has greater stiffness than the actuator force characteristic curve of the clutch actuator.

Description

technical field [0001] The invention relates to a method for referencing the zero point of a self-closing clutch in a motor vehicle, wherein a clutch actuator is actuated, said clutch actuator being moved towards a stop, wherein the clutch actuator has an actuator force characteristic curve . Background technique [0002] In motor vehicles clutches are used which are controlled by clutch actuators which have a mechanical or hydraulic transmission line for the clutch actuator with a “normally closed” clutch. A “normally closed” clutch is understood to be a clutch that closes automatically, which remains in the closed state without the action of force. [0003] A device and a method are known from DE 10 2013 205 142 A1 for the reference and plausibility testing of the reference position of an actuator, wherein the actuator displaces an actuating element along the actuating stroke and determines Reference position at the mechanical stop at the end of the actuation stroke. In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D48/06
CPCF16D48/06F16D2500/3026F16D2500/50245F16D2500/50275F16D2500/70211
Inventor 亚历山德·德雷埃尔
Owner SCHAEFFLER TECH AG & CO KG