CONTROL DEVICE OF IDLING STOP VEHICLE

PROBLEM TO BE SOLVED: To provide a control device for an idling stop vehicle having a selector valve to change over the supply oil pressure to a starting clutch to prevent a belt slip by putting the selector valve to a transient pressure side certainly even if a battery voltage drops temporarily at recovery from the idling stop.SOLUTION: The constitution of this control device includes the selector valve 74 to change over the supply oil pressure to the starting clutch from a holding pressure to a transient pressure lower than the holding pressure, and vice versa, and solenoid valves DS1 and DS2 to generate a signal pressure for switching the selector valve 74 to the transient pressure side by means of power feeding, wherein the solenoid valves DS1 and DS2 are fed with a duty ratio near the maximum in the range of duty ratio for control during the idling stop period. Accordingly the selector valve can be put into the transient pressure side without being influenced by an eventual temporary drop of the battery voltage caused by a starter drive at recovery from the idling stop, and it is possible to prevent a belt slip and to determine an electric failure with the solenoid valves.