Importance

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Abstract

Disclosed herein is a device for controlling a vehicle engine by controlling a throttle valve by the drive-by-wire method. Using the fact that an acceleration is proportional to an excess torque, a target torque is determined in accordance with a predetermined functional equation by using as input information a target acceleration determined based on the degree of operation of a man-controlled member, the current running acceleration and the current output torque. A target throttle opening rate is set further from the target torque. The throttle valve is then controlled to achieve the target throttle opening rate to predictably control the acceleration, whereby high-accuracy engine control is materialized and drivability is improved.

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First Claim