Patent ID: 6401022
Filing Date: 2002-06-04
Classification: B60W,F16H,Y02T,Y10T

Abstract:
A drive power control apparatus of a vehicle, comprising:an engine that generates a drive power of the vehicle; a transmission that is connected to an output shaft of the engine and that performs a speed shift of the vehicle; and a controller that: determines a target drive power based on a state of operation of the vehicle; controls a torque of the engine and a speed ratio of the transmission so as to achieve the target drive power, wherein the controller controls the speed ratio of the transmission based on a speed shift line that is plotted on a graph having a pair of axes defining a revolution speed of the engine and the torque of the engine so that, within a practical region in which the state of operation of the engine is practical, the speed shift line is at a low revolution speed side of an optimal fuel consumption line that is determined based on at least an efficiency of the engine and an efficiency of the transmission, of an efficiency of a drive system that includes the engine and the transmission.