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:
Nov. 03, 2009
Filed:
Apr. 05, 2005
Ikuo Ando, Aichi-ken, JP;
Osamu Harada, Toyota, JP;
Yukio Kobayashi, Kasugai, JP;
Katsuhiko Yamaguchi, Nissin, JP;
Kazuhiro Ichimoto, Nissin, JP;
Takahiro Nishigaki, Nagoya, JP;
Daigo Ando, Nissin, JP;
Mamoru Tomatsuri, Toyota, JP;
Keiko Hasegawa, Toyota, JP;
Ikuo Ando, Aichi-ken, JP;
Osamu Harada, Toyota, JP;
Yukio Kobayashi, Kasugai, JP;
Katsuhiko Yamaguchi, Nissin, JP;
Kazuhiro Ichimoto, Nissin, JP;
Takahiro Nishigaki, Nagoya, JP;
Daigo Ando, Nissin, JP;
Mamoru Tomatsuri, Toyota, JP;
Keiko Hasegawa, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
The technique of the invention determines whether input data for driving and controlling a cooling fan have any abnormality (steps Sand S), sets an actual drive level F* of the cooling fan to a high level (Hi) in the event of detection of any abnormality (step S), and controls a fan motor to drive the cooling fan at the set drive level F* (step S). This arrangement effectively prevents a temperature rise to an abnormally high level in any of an engine and motors even in the event of any abnormality arising in the input data.