Instantaneous wire interruption detection system for vehicle...

Details Instantaneous wire interruption detection system for vehicle... Instantaneous wire interruption detection system for vehicle...

2006-08-15

2006-08-15

Hoff, Marc S. (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Electrical signal parameter measurement system

C702S185000, C324S503000, C701S029000, C340S652000

Reexamination Certificate

active

07092829

ABSTRACT:
In an instantaneous wire interruption detection system for a vehicle electrical system, a VSC-ECU includes an input processing circuit that processes electric signals transmitted from various sensors and an EFI-ECU by a signal wire (wire harness); a signal state determination circuit that determines whether the electric signals processed by the input processing circuit are normal or abnormal; a latch circuit that latches the determination result as a latch signal; and an output circuit that can output the latch signal. When a signal abnormality is detected by the signal state determination circuit, the latch circuit is able to generate the latch signal in synchronization therewith, and latch the latch signal for a predetermined time. Accordingly, for example, by connecting a tester device to the output circuit, and monitoring the latch signal, it is possible to detect instantaneous wire interruption of the electrical system.

REFERENCES:
patent: 3601655 (1971-08-01), Andersen
patent: 5568529 (1996-10-01), Masuda
patent: 5629606 (1997-05-01), Asada
patent: 5848365 (1998-12-01), Coverdill
patent: 6745153 (2004-06-01), White et al.
patent: 10225658 (2003-12-01), None
patent: 0 506 832 (1994-04-01), None
patent: 2001033356 (2001-02-01), None
patent: A-2001-065403 (2001-03-01), None

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