Fault diagnosis system for automotive electronic devices

Details Fault diagnosis system for automotive electronic devices Fault diagnosis system for automotive electronic devices

1987-09-21

1990-05-08

LaRoche, Eugene R.

Boots, shoes, and leggings

731172, G06F 1574

Patent

active

049243985

ABSTRACT:
A fault diagnosis system for automotive electronic devices, suitable for use in an automobile having at least one electronic device which is provided with a sensor for sensing the state of operation of at least one automotive part and an actuator for controlling the operation of the automotive part in accordance with the state sensed by the sensor, the electronic device having a self-diagnosis function for detecting any fault in said sensor or said actuator and for storing data concerning the detected fault. The fault diagnosis system has a diagnosis tester which includes an input circuit for receiving a fault detection signal which is produced as a result of self-diagnosis performed by the self-diagnosis function of said electronic device, a display control circuit for converting the fault detection signal received by the input circuit into a display control signal, a display for displaying, in accordance with said display control signal, data representing the sensor or said actuator having the fault, and a sound generating device receiving the display control signal for generating an aural alarm in response to a fault.

REFERENCES:
patent: 4325251 (1982-04-01), Kanegae
patent: 4402217 (1983-09-01), Higashiyama
patent: 4437342 (1984-03-01), Hosaka et al.
patent: 4442424 (1984-04-01), Shirasaki et al.
patent: 4612615 (1986-09-01), Murakami
patent: 4627275 (1986-12-01), Henein et al.
patent: 4764884 (1988-08-01), Noyori

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