Vehicle speed sensor abnormality detection device

Details Vehicle speed sensor abnormality detection device Vehicle speed sensor abnormality detection device

1988-05-26

1990-05-22

Chin, Gary

Boots, shoes, and leggings

3644241, 123479, 731181, G01M 1900

Patent

active

049282425

ABSTRACT:
In order to detect a sensor malfunction, the outputs of two sensors which sense the same operational parameter are both compared with a predetermined value. When the outputs of the sensors fall on either side of the predetermined value the one having the lower value is assumed to be inoperative. The comparison is continually repeated and the operative/inoperative status of the sensors continually updated.

REFERENCES:
patent: 4541386 (1985-09-01), Kishi et al.
patent: 4615321 (1986-10-01), Haefner
patent: 4700563 (1987-10-01), Iwata et al.
patent: 4759212 (1988-07-01), Sawada et al.
patent: 4780826 (1988-10-01), Nakano et al.

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