Patent ID: 6722332
Filing Date: 2004-04-20
Classification: B60K,B60L,B60W,F02N,Y02T,Y10S

Abstract:
A vehicular engine start control apparatus comprising:an internal combustion engine that propels a vehicle by turning a wheel via a power connection/disconnection mechanism; a starter electric motor that turns the internal combustion engine when the internal combustion engine is to be started; and a control unit that, when a request for starting the internal combustion engine occurs during a run of the vehicle in an engine stopped state where the power connection/disconnection mechanism is disconnected and the internal combustion engine is stopped, turns the internal combustion engine by using the starter electric motor without causing explosion in the internal combustion engine, and controls the starter electric motor so that an input rotation speed of the power connection/disconnection mechanism and an output rotation speed of the power connection/disconnection mechanism become substantially synchronous, and that performs a control of causing the internal combustion engine to have a self-driven revolution based on explosion by supplying a fuel to the internal combustion engine after the input rotation speed and the output rotation speed of the power connection/disconnection mechanism become substantially synchronous and the power connection/disconnection mechanism is connected, wherein the control unit increases an engine revolution speed of the internal combustion engine by causing the internal combustion engine to have a self-driven revolution based on explosion by immediately supplying fuel to the internal combustion engine without the control by the starter electric motor, in a case where the synchronous revolution speed of the internal combustion engine at which the input rotation speed of the power connection/disconnection mechanism and the output rotation speed of the power connection/disconnection mechanism become substantially synchronous is greater than a predetermined value &agr; up to which the starter electric motor is able to increase the revolution speed of the internal combustion engine.