Method for recognizing leakage in adjusting device of fluid-actuated clutch of motor vehicle, involves adjusting clutch of adjusting cylinder controlled through control unit by switching valves against force of restoring spring

摘要

#CMT# #/CMT# The method involves adjusting the clutch of an adjusting cylinder (20) controlled through a control unit (30) by switching valves against the force of a restoring spring (23) into an opening position. The displacement of the piston (25) of the adjusting cylinder is determined corresponding to the opened clutch and closed venting and exhaust valves (22,24) over the time and the degree of leakage is considered during further operation of the adjusting cylinder. The leakage rate is determined cyclically and is stored over the continuous operating time of the clutch in the control unit. #CMT#USE : #/CMT# Method for recognizing a leakage in an adjusting device of a fluid-actuated clutch of a motor vehicle. #CMT#ADVANTAGE : #/CMT# The displacement of the piston of the adjusting cylinder is determined corresponding to the opened clutch and closed venting and exhaust valves over the time and the degree of leakage is considered during further operation of the adjusting cylinder, where the leakage rate is determined cyclically and is stored over the continuous operating time of the clutch in the control unit, and thus prevents unwanted closing of the clutch and enables accurate measurement of the regulating distance of the moving part of the clutch, and also avoids leakage of the fluid-actuated clutch in an efficient manner. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic representation of a leakage recognizing method. 20 : Adjusting cylinder 22,24 : Venting and exhaust valves 23 : Restoring spring 25 : Piston 30 : Control unit.