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:
May. 24, 2011
Filed:
Feb. 19, 2008
Akihiro Kimura, Toyota, JP;
Toshiya Hashimoto, Toyota, JP;
Shunsuke Oyama, Aichi-ken, JP;
Masaya Yamamoto, Kasugai, JP;
Kiyoshiro Ueoka, Nisshin, JP;
Noriaki Ikemoto, Obu, JP;
Masaki Nomura, Anjo, JP;
Akihiro Kimura, Toyota, JP;
Toshiya Hashimoto, Toyota, JP;
Shunsuke Oyama, Aichi-ken, JP;
Masaya Yamamoto, Kasugai, JP;
Kiyoshiro Ueoka, Nisshin, JP;
Noriaki Ikemoto, Obu, JP;
Masaki Nomura, Anjo, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Denso Corporation, Kariya-shi, JP;
Aisin AW Co., Ltd., Anjo-shi, JP;
Abstract
During a standstill, a prescribed rotation speed N, which is lower than a prescribed rotation speed Nused during a travel at a low vehicle speed, is set as a minimum rotation speed Nemin (S), and when a demand for an idle operation has been made (S), the minimum rotation speed Nemin is set as a target rotation speed Ne* and the value 0 is set as a target torque Te* (S), whereby an engine is controlled. As a result of this, it is possible to improve the fuel consumption of a vehicle when the engine is operated at idle at standstill compared to a case where the engine is operated at idle at the minimum rotation speed Nemin for which the prescribed rotation speed Nis set regardless of whether or not the vehicle is at a standstill.