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:
Aug. 14, 2012
Filed:
May. 12, 2008
Takanori Aoki, Nissin, JP;
Koji Yamamoto, Okazaki, JP;
Takanori Aoki, Nissin, JP;
Koji Yamamoto, Okazaki, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
When the low SOC control request is output and the catalyst warming request is not output, the low SOC control mode is set as a control mode and the state of charge (SOC) of the battery is controlled according to the managing center SOC* set as the smaller value Sthan the value Sfor the normal time. When the catalyst warming request is output, the catalyst warming mode is set as a control mode regardless of the low SOC control request and the engine is controlled to perform the self sustained operation (no-load operation) at the idling rotation speed Nidl with the spark-retard state. Namely, when the battery temperature is low and the catalyst temperature is also low, the catalyst warm-up is given a higher priority than the low SOC control and prevents the exhaust emission from becoming worse.