Friction detecting device for vehicles

Details Friction detecting device for vehicles Friction detecting device for vehicles

1988-10-14

1990-08-21

Black, Thomas G.

Boots, shoes, and leggings

180140, 180141, B62D 604

Patent

active

049511980

ABSTRACT:
A friction detecting device comprising running condition detector for detecting a running condition of a vehicle including a lateral acceleration acting on a gravity center of the vehicle, steering angle detector for detecting steering angle of front and rear wheels of the vehicle, vehicle speed sensor, memory for storing stability factors of the vehicle including a vehicle weight, respective distances between the gravity center and front and rear axles, cornering powers acting on the front and rear wheels at a standard condition and a yawing moment of inertia, control unit for obtaining a frictional coefficient .mu. of a road surface on which the vehicle is running by employing a following formula;

REFERENCES:
patent: 3866706 (1975-02-01), Linke et al.
patent: 4706771 (1987-11-01), Kawabe et al.
patent: 4733878 (1988-03-01), Kanazawa et al.
patent: 4773012 (1988-09-01), Ito et al.
patent: 4806627 (1989-02-01), Yasuike et al.
patent: 4807128 (1989-02-01), Ikemoto et al.

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