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. 29, 2009
Filed:
Jan. 26, 2007
Eiji Yanagida, Okazaki, JP;
Eiji Sato, Nishikamo-gun, JP;
Ryoji Oki, Toyota, JP;
Hidenori Takahashi, Okazaki, JP;
Eiji Yanagida, Okazaki, JP;
Eiji Sato, Nishikamo-gun, JP;
Ryoji Oki, Toyota, JP;
Hidenori Takahashi, Okazaki, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-Ken, JP;
Abstract
An internal combustion engine start controller in a vehicle that includes: a power source; an internal combustion engine that is started by using electric power supplied from the power source; a first motor; and a first electric power converter that is constructed so as to be able to perform electric power conversion between the power source and the first motor through switching control of power semiconductor elements is provided. The start controller includes: a start detecting device for detecting whether the engine is in a starting operation; and a first frequency setting device that, when the engine is in a starting operation, sets a switching frequency of the first electric power converter to a frequency lower than that used when the engine is not in a starting operation.