Communications: electrical – Condition responsive indicating system – With particular system function
Patent
1996-04-05
1998-03-31
Hofsass, Jeffery
Communications: electrical
Condition responsive indicating system
With particular system function
364424034, 364424038, 73116, G08B 2900
Patent
active
057343225
ABSTRACT:
An apparatus for checking a trouble in a communication circuit connected between engine and transmission control units. A check signal is produced at uniform intervals of time. The check signal is converted into a predetermined code. The converted code is transmitted through the communication circuit from one of the engine and transmission control units to the other control unit. The code transmitted to the other control unit is monitored to produce a failure signal to indicate that a trouble occurs in the communication circuit when the monitored code is not identical with the predetermined code.
REFERENCES:
patent: 4864568 (1989-09-01), Sato et al.
Ishii Shigeru
Jozaki Tateki
Shinso Yoshihide
Hofsass Jeffery
Nissan Motor Co,. Ltd.
Pope Daryl L. C.
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