Engine control system for hybrid vehicle

Abstract

The engine control system, according to the present invention, for a hybrid vehicle, which has an internal combustion engine and an electric motor as driving force sources, and permits stopping and starting of the engine in accordance with predetermined drive conditions, the engine control system comprises: power-consumption detector for detecting an amount of power consumption by predetermined device; first power storage unit for supplying electric energy to the motor and storing energy generated when the electric motor is operated as a generator by the internal combustion engine and energy regenerated by regeneration; second power storage unit for supplying electric energy to the predetermined device; remaining-amount detector for detecting a remaining charge of said first power storage unit; stop/start determination device for determining whether to permit stopping or starting of the engine in accordance with the amount of power consumption by the predetermined device and the remaining charge of the first power storage unit; engine stopper for stopping the engine based on a result of a decision by the stop/start determination device; and engine starter for starting the engine based on the result of the decision by the stop/start determination device.