The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 16, 2002

Filed:

Oct. 15, 1999
Applicant:
Inventors:

Mitsuhiko Watanabe, Odawara, JP;

Katsuya Oyama, Hitachinaka, JP;

Shoji Sasaki, Hitachinaka, JP;

Toshio Hayashibara, Hitachinaka, JP;

Kaneyuki Okamoto, Hitachinaka, JP;

Ichiro Ohsaka, Kawasaki, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/00 ;
U.S. Cl.
CPC ...
H02H 3/00 ;
Abstract

A control apparatus for controlling multiple power loads in a vehicle includes a circuit for detecting a current abnormality of a power element and a circuit for monitoring a temperature abnormality in a locality of the power element. Circuits are also provided continuing or shutting down the power element based on information concerning the above stated current and/or temperature abnormalities, with a timing which is established according to a substantially constant period or a time interval which is stored in advance in a memory element.


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