Invention Grant
- Patent Title: Control apparatus for internal combustion engine and method of controlling internal combustion engine
- Patent Title (中): 内燃机控制装置及内燃机控制方法
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Application No.: US12306559Application Date: 2007-06-27
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Publication No.: US07826961B2Publication Date: 2010-11-02
- Inventor: Kunihiko Jinno
- Applicant: Kunihiko Jinno
- Applicant Address: JP Toyota-shi, Aichi-ken
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota-shi, Aichi-ken
- Agency: Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- Priority: JP2006-180033 20060629
- International Application: PCT/IB2007/001749 WO 20070627
- International Announcement: WO2008/001198 WO 20080103
- Main IPC: F02N11/00
- IPC: F02N11/00
Abstract:
In an engine ECU (60), a threshold line LS1 and a threshold line LS2 are set as threshold lines used when stopping of an engine is prohibited based on a coolant temperature Tw. The threshold line LS1 is set to ensure a predetermined heating capacity. The threshold value on the threshold line LS2 is higher than the threshold value on the threshold line LS1. When the vehicle is moving, the threshold line LS2 is selected to prohibit/permit stopping of the engine. This increases the amount of heat stored in an engine coolant. When the vehicle is stopped, the threshold line LS1 is selected to prohibit/permit stopping of the engine. This decreases the frequency of starting the engine in the stopped vehicle, while maintaining the predetermined heating capacity.
Public/Granted literature
- US20090198438A1 CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE AND METHOD OF CONTROLLING INTERNAL COMBUSTION ENGINE Public/Granted day:2009-08-06
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