Patent ID: 6910453

Claim:
An automotive internal combustion engine control system that transmits an output of a starting motor through an endless transmission belt to an input/output pulley mounted on an output shaft of an internal combustion engine in starting the internal combustion engine, transmits an output of the internal combustion engine through the endless transmission belt to auxiliary machinery while the internal combustion engine is in operation, and transmits an output of the starting motor through the endless transmission belt to the auxiliary machinery while the internal combustion engine is at an intentional standstill; wherein said starting motor has a power generating function; and said automotive internal combustion engine control system includes a speed-change mechanism which transmits rotation of the starting motor to the internal combustion engine at a high first gear ratio in starting the internal combustion engine and which transmits rotation of the internal combustion engine to the starting motor at a low second gear ratio to operate the starting motor as a power generator while the internal combustion engine is in operation, said speed-change mechanism being built within the input/output pulley of the internal combustion engine.