Abstract: A safety control system for use in mobile vehicles driven by a throttle controlled engine. The safety control system, upon actuation of the vehicle brakes, automatically brings the engine throttle into its idling position, irrespective of the setting of the engine throttle control and maintains it in this position as long as the vehicle brakes are being applied. The safety control system also brings the engine throttle into its idling position upon return of the throttle control lever to its idling position, irrespective of the position of the throttle control cable connecting engine throttle and throttle control lever.