Patent ID: 6702718
Filing Date: 2004-03-09
Classification: B60W,F02D,F02N,F16H,Y02T,Y10T

Abstract:
An engine control apparatus comprising:brake depression degree detecting means for detecting a degree of depression of a brake pedal in a vehicle; brake depression degree judging means for judging whether or not the detected degree of depression of the brake pedal is smaller than a first prescribed value; deceleration detecting means for detecting a deceleration of the vehicle; automatic engine stop and restart controlling means for automatically stopping an engine powering the vehicle when the deceleration detecting means detects a deceleration of the vehicle and the brake depression degree judging means judges that the detected degree of depression of the brake pedal is not smaller than the first prescribed value; and engine speed detecting means for detecting a rotational speed of the engine, and wherein the brake depression degree judging means executes judging whether or not the detected degree of depression of the brake pedal is smaller than the first prescribed value when the rotational engine speed detected by the engine speed detecting means drops to a reference value set on the basis of a maximum speed in a range of resonance between the engine and a body of the vehicle.