Patent ID: 8448621

Claim:
An engine start control system, comprising: a controller configured to perform an idle stop control to stop an engine based on an establishment of a condition; and a motor configured to reverse-rotationally drive a crankshaft to a predetermined position for normal-rotational or reverse-rotational driving, after the engine is stopped, wherein the controller comprises a reverse-rotational drive controller configured to reverse-rotationally drive the motor at a rewinding control duty ratio immediately after the engine is stopped, a reverse-rotation stop condition processor configured to detect whether the crankshaft is rewound to the predetermined position by the reverse-rotational drive controller, and a motor brake controller configured to apply a brake to the crankshaft by reverse-rotationally driving the motor when it is detected that the crankshaft is rewound to the predetermined position, wherein the motor brake controller is configured to apply the brake stepwise.