Patent ID: 6079511
Filing Date: 2000-06-27
Classification: B60K,F02D

Abstract:
A drive force control device of an engine of a vehicle, the engine driving a drive wheel of the vehicle, the control device comprising:a fuel injection valve for injecting fuel into the engine,a mechanism for varying the output of the engine,sensors for detecting a slip of the drive wheel, anda microprocessor programmed to:selectively control an air-fuel ratio of an air-fuel mixture supplied to the engine via said fuel injection valve so that the air-fuel ratio is equal to either of an ordinary air-fuel ratio which is approximately equal to a stoichiometric air-fuel and a lean air-fuel ratio which is leaner than the ordinary air-fuel ratio,control said output varying mechanism so as to reduce the output of said engine when the slip of the drive wheel is detected, andcontrol the air-fuel ratio of said air-fuel mixture to the ordinary air-fuel ratio as the output of said engine is reduced by said output varying mechanism.