Friction coefficient measurement from a moving vehicle

Details Friction coefficient measurement from a moving vehicle Friction coefficient measurement from a moving vehicle

1980-01-10

1982-02-16

Ruehl, Charles A.

Measuring and testing

Frictional resistance, coefficient or characteristics

73146, 7386204, G01N 1902

Patent

active

043154263

ABSTRACT:
Apparatus and methods are disclosed for detecting slippery road conditions directly from a moving vehicle. A special probe is momentarily lowered to the road surface from the moving vehicle. A coefficient of friction is determined by ratio of the verticle and friction forces. A display provides the operator with a proper indication of roadway conditions.

REFERENCES:
patent: 4098111 (1978-07-01), Hardmark et al.
patent: 4212063 (1980-07-01), Hardmark

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