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:
Jan. 20, 2009
Filed:
Mar. 23, 2007
Katsuhiko Yamaguchi, Nissin, JP;
Osamu Harada, Toyota, JP;
Yukio Kobayashi, Kasugai, JP;
Kiyoshiro Ueoka, Nissin, JP;
Takahiro Nishigaki, Nissin, JP;
Mamoru Tomatsuri, Toyota, JP;
Koichiro Muta, Okazaki, JP;
Katsuhiko Yamaguchi, Nissin, JP;
Osamu Harada, Toyota, JP;
Yukio Kobayashi, Kasugai, JP;
Kiyoshiro Ueoka, Nissin, JP;
Takahiro Nishigaki, Nissin, JP;
Mamoru Tomatsuri, Toyota, JP;
Koichiro Muta, Okazaki, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A delay time for delaying starting of an internal combustion engine in a hybrid vehicle is set to a predetermined time based on an engine coolant temperature and a state of an air conditioner switch. Starting of the engine is delayed for the predetermined time if it is determined that a vehicle can run using only a motor based on a required torque, a required power and an SOC of the battery. The predetermined time is determined based on a time necessary for completing preheating of an engine by a preheating device, preparations of sensors such as an air-furl ratio sensor, and warming-up of an exhaust gas purifying device. As a result, it is possible to efficiently perform start of the engine and operation immediately after the engine start, and to make control at the engine start time simple.