Patent US 6,397,140

To provide an engine power-train control apparatus and method for securing both operability and safety by controlling an actual acceleration/deceleration to a target acceleration/deceleration requested by a driver under an undangerous traveling condition and changing the target acceleration/deceleration so as to take precedence of safety traveling if the driver encounters a dangerous traveling condition.To achieve the above mentioned:the control is performed in which acceleration/deceleration and speed of a motor vehicle are detected;a target acceleration/deceleration is operated; a road condition such as a road gradient or presence or absence of a forward motor vehicle is detected to decide whether the road condition is dangerous; andthe target acceleration is changed if the condition is decided to be dangerous.