SAFETY CONTROL DEVICE FOR AN ACTUATOR OF THE SOLENOID SWING SOLENOID TYPE

摘要

P Safety control device of an actuator of the solenoid valve type 5 with solenode, in particular for automatic gearbox, comprising a current control device 10 characterized in that it comprises a shunt resistor 20 for measuring current of said current control device 10 and a control unit 9 which measures the time between the instant 0 of the start of supply of the solenoid valve 5 and the moment when the current reaches a threshold intensity IS which compares said duration with a time TS + - DELTAT which characterizes the correct operation of the solenoid valve 5 so that, when this time is not respected, the control unit 9 acts on the current control device 10 via the conductor 17 to cut off the power to said solenoid valve 5. /P