CIRCUITRY CONFIGURATION FOR A REGENERATION VALVE FOR FUEL TANK VENTILATION IN A MOTOR VEHICLE

摘要

Disclosed is a circuit configuration for an electromagnetic regeneration val ve actuatable by pulse width modulation, for the venting of the tank of a motor vehicle, which includes a power source for supplying the solenoid of the regeneration valve with electricity, a control unit for generating pulse with modulated signals and a switching device through which the solenoid can receive the pulse with modulated signa ls of the control unit. According to the invention, means are provided for suppressing high induced voltages at the solenoid. With this measure, the noise generation during operation of the regeneration valve can be significantly reduced both in the clocked as well as in the proportional operation.