Malfunction detector for acceleration sensor

Details Malfunction detector for acceleration sensor Malfunction detector for acceleration sensor

1991-12-23

1993-04-20

Raevis, Robert

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

G01M 1500

Patent

active

052038211

ABSTRACT:
An apparatus detects a malfunction of a plurality of acceleration sensors used in an antilock control system. The device has a plurality of state changeover devices corresponding to the respective acceleration sensors for changing their outputs from 0 to 1 if the outputs of the respective acceleration sensors change from low deceleration states to high deceleration states, and from 1 to 0 if their outputs change from high to low deceleration states. The apparatus also includes a reset signal output device for producing a reset signal if the outputs of all the state changeover devices are 1 and if the outputs of all of the state changeover devices change from 1 to 0 thereafter. A lamp actuating device is provided for turning a warning lamp on if the output of at least one of the state changeover devices is 1 and for turning the lamp off if there is a reset signal from the reset signal output device.

REFERENCES:
patent: 3015946 (1962-01-01), Moore
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patent: 3953080 (1976-04-01), Bremer
patent: 3964796 (1976-06-01), Bremer
patent: 4841446 (1989-06-01), Lieber et al.
patent: 4895021 (1990-01-01), Ishizeki
patent: 4943922 (1990-07-01), Tanaka

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