Patent ID: 6482127
Filing Date: 2002-11-19
Classification: B60K,B60W,F02D,F02N,F16H,Y02T,Y10T

Abstract:
A control system of an automatic transmission which comprises: a starter motor for starting an engine; a hydraulic pressure source having a main pump driven by the engine and an assist pump driven by an electric motor; idling stop control unit for outputting engine idling start and stop signals to an engine control unit under predetermined idling stop conditions according to a vehicle speed signal detected by a vehicle speed sensor, a steering angle detected by a steering angle sensor, and a signal from a brake switch detecting whether a brake is operated or not; said control system comprising:an idling stop switch for switching an operation of said idling stop control unit between an idling operation and an idling stop operation; wherein if said idling stop control unit outputs an idling stop signal to the engine control unit, said assist pump as well as the engine are stopped; if said idling stop control unit receives an OFF signal from the brake switch or receives an idling stop control termination signal from said idling stop switch, said idling stop control unit outputs a cancellation command for canceling the idling stop operation to the engine control unit to drive said starter motor and drive said assist pump.