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Method for protecting a clutch actuator, preferably for a clutch actuating system of a motor vehicle

A clutch control and clutch technology, applied in non-mechanical drive clutches, fluid drive clutches, clutches, etc., can solve problems such as damaging the system

Active Publication Date: 2019-02-01
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the maximum permissible stroke of the slave cylinder is exceeded, the hydraulic fluid can escape and destroy the system, whereby the clutch can no longer be actuated

Method used

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  • Method for protecting a clutch actuator, preferably for a clutch actuating system of a motor vehicle
  • Method for protecting a clutch actuator, preferably for a clutch actuating system of a motor vehicle
  • Method for protecting a clutch actuator, preferably for a clutch actuating system of a motor vehicle

Examples

Experimental program
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Embodiment Construction

[0020] exist figure 1 A schematic diagram of a drive train 1 of a hybrid vehicle is shown in . The drive train 1 includes an internal combustion engine 2 and an electric motor 3 . Between the internal combustion engine 2 and the electric motor 3 , a disconnect clutch 4 is arranged directly downstream of the internal combustion engine 2 . The internal combustion engine 2 and the disconnect clutch 4 are connected to each other via a crankshaft 5 . The electric motor 3 has a rotatable rotor 6 and a fixed stator 7 . The output shaft 8 of the disconnect clutch 4 is connected to a transmission 9 which contains a coupling element not further shown, such as a second clutch or a torque converter, which is arranged between the electric motor 3 and the transmission 9 . The transmission 9 transmits the torque generated by the internal combustion engine 2 and / or the electric motor 3 to drive wheels 10 of the hybrid vehicle. The disconnect clutch 4 and the transmission 9 form a transm...

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PUM

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Abstract

The invention relates to a method for protecting a clutch actuator for a clutch actuation system, preferably for a motor vehicle, which actuates a self-closing clutch (4), which By electrically adjusting the first piston (18) of the master cylinder (13) of the clutch actuator, thereby moving the second piston (16) of the slave cylinder (15) via a hydrostatic line (14) to manipulate clutch (4), and limit the maximum movement stroke of the second piston (16) by the stopper. In a way to ensure that the clutch actuator is not destroyed by an incorrect actuation, a non-permanent stop is used, wherein the stop is considered to have been actuated when the second piston (16) passes the stop travel, The stop travel is reduced by a predetermined distance value relative to the mechanical stop, wherein a maximum position of the hydrostatic clutch actuator ( 12 ) is defined as a function of the stop travel traversed.

Description

technical field [0001] The invention relates to a method for protecting a clutch actuator of a clutch actuating system, preferably for a motor vehicle, which actuates a self-closing clutch by electrically actuating the clutch actuator The first piston of the master cylinder moves the second piston of the slave cylinder via the hydrostatic line to operate the clutch, and the maximum movement stroke of the second piston is limited by the stopper. Background technique [0002] From DE 10 2012 218 255 A1 a method is known for controlling a clutch by means of a hydrostatic actuator comprising a lead screw which rotates in order to cause the piston of the master cylinder to move in the axial direction Movement in which the distance traveled by the piston is determined directly or indirectly by means of a sensor device. [0003] If a self-closing clutch is used in conjunction with a hydrostatic clutch actuator, the clutch is actuated via a hydrostatic line, wherein the self-closin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D48/06
CPCF16D48/06F16D2500/5012F16D2500/50251F16D2500/7041F16D2500/3026F16D2500/1024F16D2500/10412F16D2500/1045F16D2500/1066F16D2500/70689F16D25/082
Inventor 斯特芬·科勒
Owner SCHAEFFLER TECH AG & CO KG