Equipment for the control of contact in a clutch mechanism, comprises transmitter and receiver hydraulic pistons under programmable electronic control which uses speed difference at clutch

摘要

Input and output shaft speed differences at the clutch (12) are measured (15,17) and supplied to an electronic control unit (21) which directs the operation of a motorized drive (18,19,20). The drive actuates a receiver/transmitter hydraulic piston system (2,3) which controls the clutch to avoid juddering. At a modulation limit (M) the transmitter piston crosses a top up tank entry (9) slowly to avoid undue piston seal wear. An Independent claim is also included for: The method of eliminating juddering and reducing transmitter piston seal wear.