Patent ID: 6141615
Filing Date: 2000-10-31
Classification: B60W,F16H,Y10T

Abstract:
A down-shift control system comprising:target driving force calculating means for calculating target driving force of a vehicle according to a degree of opening of an accelerator pedal and a speed of the vehicle;shift position detecting means for detecting the present shift position of the vehicle;target engine torque calculating means for calculating target engine torque based on the target driving force and the present shift position;comparison means for comparing the target engine torque with a set value determined according to torque characteristics of the engine of the vehicle;accumulation means for performing an accumulating operation relating to the degree of opening of the accelerator pedal if it is judged by the comparison means that the target engine torque equals or exceeds the set value; anddown-shift control means for outputting a command for executing a down-shift operation if an accumulated value obtained by the accumulation means exceeds a threshold relating to the degree of opening of the accelerator pedal.