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:
Dec. 15, 2009
Filed:
Nov. 21, 2006
Akihiro Yamanaka, Okazaki, JP;
Yukio Onishi, Nagoya, JP;
Takeshi Yasuda, Kuwana, JP;
Hideo Itano, Toyota, JP;
Akihiro Yamanaka, Okazaki, JP;
Yukio Onishi, Nagoya, JP;
Takeshi Yasuda, Kuwana, JP;
Hideo Itano, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
In the case of the on setting of an eco switch signal ESW, when a torque demand Tr* is less than a good fuel consumption-assuring minimum torque Temin, the hybrid vehicle of the invention stops the operation of an engine and controls a motor MGto output a required torque for constant speed drive. When the torque demand Tr* is not less than the good fuel consumption-assuring minimum torque Temin, on the other hand, the engine is driven at a drive point in a good fuel consumption range among drive points on an optimum fuel consumption operation curve to ensure output of the required torque for the constant speed drive. Such control enhances the fuel efficiency for the constant speed drive.