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:
Oct. 21, 2003

Filed:

Mar. 28, 2002
Applicant:
Inventors:

Hiroyuki Yamada, Hitachinaka, JP;

Minoru Kaminaga, Hitachinaka, JP;

Takuma Nomura, Hitachinaka, JP;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 2/300 ;
U.S. Cl.
CPC ...
H02K 2/300 ;
Abstract

The electric car controller is characterized in that evaluation two-phase/three-phase converting means ( ) for calculating a three-phase evaluation current indication value is provided in control means, and current detected value from current detecting means ( ) and evaluation current indication value are compared with each other by a deviation computing means ( ). This result is evaluated by error evaluation means ( ), and is sent to target command computing means ( ), whereby the operation of a drive apparatus is stopped or continued.


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