Vehicle control system for determining verified wheel speed sign

Details Vehicle control system for determining verified wheel speed sign Vehicle control system for determining verified wheel speed sign

1993-11-19

1995-04-04

Teska, Kevin J.

Boots, shoes, and leggings

36455101, 364565, 303 93, G01P 1100, B60T 878

Patent

active

054043042

ABSTRACT:
A vehicle controller in which inputs from several wheel speed sensors are used to compute wheel speed. A redundant circuit in the controller receives the sensor input signals and computes wheel speed in a different, software intensive, way. The primary and redundantly computed wheel speeds are compared to validate the primary controller circuitry and the portion of the controller used to process compute the redundant speed signal. To additionally verify proper calculation of wheel speed, the system is tested when the vehicle is at rest by applying an artificial sensor signal to the control input and then checking to see whether the controller determined the correct wheel speed.

REFERENCES:
patent: 4777611 (1988-10-01), Tashiro et al.
patent: 4811232 (1989-03-01), Hoashi et al.
patent: 4884227 (1989-11-01), Watanabe
patent: 5001641 (1991-03-01), Makino
patent: 5253173 (1993-10-01), Drobny et al.
patent: 5265944 (1993-11-01), Gloceri

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