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.
Patent No.:
Date of Patent:
Sep. 05, 2006
Filed:
Sep. 23, 2002
Makoto Nakamura, Anjo, JP;
Eiji Sato, Toyoto, JP;
Ryoji Oki, Toyota, JP;
Masayuki Komatsu, Aichi-ken, JP;
Sumikazu Shamoto, Nagoya, JP;
Makoto Nakamura, Anjo, JP;
Eiji Sato, Toyoto, JP;
Ryoji Oki, Toyota, JP;
Masayuki Komatsu, Aichi-ken, JP;
Sumikazu Shamoto, Nagoya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
An electronic control unit () calculates the current flowing through a reactor (L) by dividing an output required BP* of a battery (), obtained from converting the power required by a motor (), by a terminal voltage Vb of the battery (). A carrier frequency (optimum carrier frequency) is set for transistors (T, T) where the loss of a DC/DC converter () is minimized from the calculated current, and the DC/DC converter () is controlled at the set switching frequency.