Failure warning system of electric power unit in vehicle

Details Failure warning system of electric power unit in vehicle Failure warning system of electric power unit in vehicle

1995-08-03

1997-07-08

Hofsass, Jeffery

Communications: electrical

Condition responsive indicating system

Specific condition

340641, 340642, 340644, 322 28, 322 37, G08B 2100

Patent

active

056465998

ABSTRACT:
The duty ratio range of a duty signal DCN transmitted from a high-voltage load controller 12 to a field current controller 103 is divided into several subranges, which are assigned to zones, such as a normal voltage control zone, high-voltage control zone, and power generation stop and failure signal zone. The duty signal of a duty ratio in each zone is transmitted to the field current controller 103 for controlling the power generation mode of a generator 2. When a failure in a high-voltage circuit 16 is detected, the duty signal of a duty ratio in the power generation stop and failure signal zone causes power generation of the generator to stop and a pilot lamp 10 to go on for warning. The pilot lamp 10 is also used to warn the operator to a power generation error of the generator 2.

REFERENCES:
patent: 4084126 (1978-04-01), Clements
patent: 4306184 (1981-12-01), Iwaki et al.
patent: 4336487 (1982-06-01), Tanaka et al.
patent: 4362982 (1982-12-01), Akita et al.
patent: 4379990 (1983-04-01), Sievers et al.
patent: 4641079 (1987-02-01), Kato et al.
patent: 4670705 (1987-06-01), Sievers et al.
patent: 5521486 (1996-05-01), Takamoto et al.
The conventional (or prior art) made reference to in the application.

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