Traction control system for vehicle

Details Traction control system for vehicle Traction control system for vehicle

1993-02-01

1996-07-23

Teska, Kevin J.

Boots, shoes, and leggings

36442601, 180197, B60T 832

Patent

active

055396437

ABSTRACT:
A traction control system for a vehicle includes a calculator for calculating a speed of a driven wheel of the vehicle, a calculator for calculating a vehicle speed and a calculator for calculating a slip rate of the driven wheel on the basis of the driven wheel speed and the vehicle speed, such that the feed-back control of a throttle valve is carried out to reduce the output torque from an engine to inhibit the excessive slipping of the driven wheel, when the slip rate exceeds a predetermined threshold value. The system further includes a calculator for calculating a total grip force of the vehicle, a calculator for calculating an initial engine required torque at the start of the feed-back control of the throttle valve on the basis of the total grip force, and a calculator for calculating an initial throttle opening degree of the throttle valve on the basis of the initial engine required torque. Thus, the excessive slipping of the driven wheels can be reduced without an abrupt change exerted to the behavior of the vehicle by setting an appropriate initial throttle opening degree.

REFERENCES:
patent: 4873638 (1989-10-01), Shiraishi et al.
patent: 4953093 (1990-08-01), Etoh
patent: 5019989 (1991-05-01), Ueda et al.
patent: 5137105 (1992-08-01), Suzuki et al.
patent: 5172319 (1992-12-01), Shiraishi et al.
patent: 5195037 (1993-05-01), Tezuka
patent: 5222570 (1993-06-01), Kawamura et al.
patent: 5243526 (1993-09-01), Ito et al.
patent: 5262950 (1993-11-01), Nakayama

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