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Method for operating a double clutch

A dual clutch, clutch technology, applied in the direction of clutches, mechanical equipment, etc., can solve problems such as component damage

Active Publication Date: 2012-12-12
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] From German laid-open document DE 102005057844A1 is known a method for limiting the pressure in a hydrostatic clutch release system with automatic clutch operation, in which a pressure sensor or an overpressure valve is intentionally dispensed with and instead, when the hydrostatic Clutch torque is sensed according to the characteristic parameters of the clutch disengagement system when the operating pressure in the disengagement system rises above a maximum pressure that can lead to component damage

Method used

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  • Method for operating a double clutch

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Embodiment Construction

[0016] figure 1 A dual clutch 4 comprising two single clutches 1 , 2 is shown in simplified form. The two single clutches 1 , 2 are operated by hydrostatic actuators 5 , 6 of the hydrostatic operating system 8 . Each of the actuators 5 , 6 of the single clutches 1 , 2 is assigned a pressure sensor 11 , 12 which senses the operating pressure of the associated clutch actuator during operation of the dual clutch 4 .

[0017] Actuators 5 , 6 each include an electronic control unit 15 , 16 in addition to pressure sensors 11 , 12 . Actuators 5 , 6 are controlled by a superordinate transmission controller 20 via electronic control units 15 , 16 . The transmission controller 20 includes a volatile memory 21 (such as RAM memory) and a nonvolatile memory 22 (such as EEPROM).

[0018] The transmission controller 20 is connected in terms of control functions to an engine controller 30 which controls an internal combustion engine 40 of the vehicle. If a fault occurs on one of the singl...

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Abstract

The invention relates to a method for operating a double clutch (4) which is activated by a hydrostatic activation system (8) which comprises two clutch actuators (5, 6) that are assigned to two individual clutches (1, 2) and comprise a pressure sensor (11, 12) each which senses the working pressure of the respective clutch actuator. The invention is distinguished in that when a fault occurs a total activation force of the double clutch is limited using the pressure values sensed by the pressure sensors.

Description

technical field [0001] The invention relates to a method for operating a dual clutch with a hydrostatic operating system comprising two clutch actuators assigned to two The single clutches each include a pressure sensor which detects the operating pressure of the respective clutch actuator. Background technique [0002] From German laid-open document DE 102005057844A1 is known a method for limiting the pressure in a hydrostatic clutch release system with automatic clutch operation, in which a pressure sensor or an overpressure valve is intentionally dispensed with and instead, when the hydrostatic The clutch torque is sensed according to the characteristic parameters of the clutch release system when the operating pressure in the release system rises above a maximum pressure which can lead to component damage. Contents of the invention [0003] The object of the present invention is to improve the operational safety of a double clutch operated with a hydrostatic operating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D48/06
CPCF16D48/066F16D2500/1026F16D2500/5114F16D2500/5104F16D2500/3024F16D2500/70404F16D2500/1086F16D2500/3023Y10T74/19251Y10T74/18576
Inventor J·格哈特
Owner SCHAEFFLER TECH AG & CO KG