Patent ID: 6023650
Filing Date: 2000-02-08
Classification: B60K,B60W,F16H

Abstract:
A driven wheel slip controlling system for a vehicle, comprising:driven wheel speed calculating means for calculating a driven wheel speed;vehicle speed calculating means for calculating a vehicle speed;reference value calculating means for calculating a reference value for determining a slip state of a driven wheel based on a vehicle speed;slip-state discerning means for discerning the slip state of the driven wheel based on the driven wheel speed and the reference value;driven wheel torque control means for controlling a driven wheel torque when said slip-state discerning means discerns that the driven wheel is in a predetermined slip state;gear position detecting means for detecting a gear position of a transmission;speed-shifting discerning means for discerning a speed-shifting of the transmission based on said gear position;engine revolutions number detecting means for detecting the number of revolutions of an engine; andpseudo driven wheel speed calculating means for calculating a pseudo driven wheel speed based on the gear position and the number of revolutions of the engine,wherein when said speed-shifting discerning means discerns a speed-shifting of the transmission, said slip-state discerning means discerns the slip state of the driven wheel based on said reference value and said pseudo driven wheel speed in place of said driven wheel speed to prevent an excessive slip-state from initially occurring.