Patent ID: 6634450
Filing Date: 2003-10-21
Classification: B60K,B60W,F02D

Abstract:
An automotive vehicle having an accelerator, comprising:an engine operable by manipulating the accelerator to output varying engine torque, drive wheels drivingly connected to the engine so that drive torque derived from the engine torque is imparted to the drive wheels, an engine torque modifier operable in response to an engine torque modifier signal to change an instantaneous value of the engine torque to a desired value, and a traction controller that determines the desired value of the engine torque to adjust an instantaneous slip amount of the drive wheels to a desired slip amount and to develop the engine torque modifier signal when the vehicle is in a drive torque control mode, wherein the traction controller determines: a value of running resistance torque that has taken place immediately before initiation of the drive torque control mode, and during the drive torque control mode, the desired value of the engine torque as a function of the determined value of running resistance and a current value of accelerating resistance torque.