Device for detecting an abnormality of a rotation sensor

Details Device for detecting an abnormality of a rotation sensor Device for detecting an abnormality of a rotation sensor

1988-05-31

1989-02-21

Myracle, Jerry W.

Measuring and testing

Brake testing

303 92, G01L 528

Patent

active

048054470

ABSTRACT:
An abnormality detecting device for detecting a breakage in wiring of a rotation sensor. When the rotating acceleration calculated based on signals from the rotation sensor is greater than a predetermined acceleration value and the rotating speed calculated based on signals from the rotation sensor is zero, a detection signal is put on a wire connected to the rotation sensor. A change in the level of the detection signal is checked for determining whether the rotation sensor is abnormal, i.e., whether there is a breakage in the rotation sensor.

REFERENCES:
patent: 4092853 (1978-06-01), Schneider et al.
patent: 4106820 (1978-08-01), Ruhnau et al.
patent: 4361871 (1982-11-01), Miller et al.
patent: 4722576 (1988-02-01), Matsuda
English Abstract of Japanese Patent No. 58-61052(A).
New Model Technical Manual of Toyota Supra, pp. 4-92 thru 4-97, Feb. 1986.

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