Calibrating a balance position where a compensation spring is used to balance a resilient load operated by an actuator

摘要

A method for calibrating the force balance position at which a compensating spring 60 of an electric motor driven actuator 30 balances the resilient load of the diaphragm spring 90 of a clutch (16, Fig 1). An alternating positional signal is applied to the electric motor 40 which corresponds to the positions of a push rod 48 of the actuator 30 which span the balance position, whilst the actual position of the push rod 48 of the actuator 30 is measured via a positional sensor 68.