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

A clutch actuator, clutch manipulation technology, applied in non-mechanical drive clutches, fluid drive clutches, clutches, etc., can solve problems such as damage to the system

Active Publication Date: 2017-04-19
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 the actuator technology of a clutch actuating system, preferably for a motor vehicle
  • Method for protecting the actuator technology of a clutch actuating system, preferably for a motor vehicle
  • Method for protecting the actuator technology of a clutch actuating system, preferably for a motor vehicle

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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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Abstract

The invention relates to a method for protecting the actuator technology for a clutch actuation system, preferably for a motor vehicle, said actuator technology activating a self-engaging clutch (4) by electromotively moving a first plunger (18) of a master cylinder (13) of said clutch actuator technology, whereby a second plunger (16) of a slave cylinder (15) is driven along a hydrostatic path (14) in order to actuate the clutch (4) and a maximum distance travelled by the second plunger (16) is limited by a stop. In a method which safeguards against the clutch actuator technology being damaged by faulty operation, a non-durable stop is used and said stop is considered to have been actuated when the second plunger (16) has travelled a distance to the stop which is reduced by a predetermined distance value in relation to said mechanical stop, a maximum position of a hydrostatic clutch actuator (12) being defined in accordance with the distance travelled up to the stop.

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 The first piston of the master cylinder of the actuator thereby moves the second piston of the slave cylinder via the hydrostatic line to actuate the clutch, and the maximum travel distance of the second piston is limited by the stop. 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...

Claims

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Application Information

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Patent Type & Authority Applications(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
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