Control method for the solenoid valve of a motor vehicle automatic gearbox, whereby the solenoid coil is controlled using a pulse width modulated signal applied by a control unit, the frequency of which is dependent on operating conditions

摘要

Method for controlling a solenoid valve (17), especially for a motor vehicle automatic gearbox, whereby a solenoid coil (28) is controlled using a pulse width modulated signal applied by a control unit (25). The clocking frequency of the control signal is controlled by the control unit dependent on operating values of the solenoid.