Invention Grant
- Patent Title: Control apparatus and control method for internal combustion engine
- Patent Title (中): 内燃机控制装置及控制方法
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Application No.: US12519828Application Date: 2007-12-21
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Publication No.: US08408187B2Publication Date: 2013-04-02
- Inventor: Mamoru Yoshioka
- Applicant: Mamoru Yoshioka
- Applicant Address: JP Toyota-shi
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2006-344322 20061221
- International Application: PCT/IB2007/004046 WO 20071221
- International Announcement: WO2008/081283 WO 20080710
- Main IPC: F02B33/00
- IPC: F02B33/00

Abstract:
A control apparatus for an internal combustion engine including a supercharging device, which includes: a valve-drive mechanism that variably controls the valve timings for at least intake valves; a target valve timing setting mechanism setting a target valve timing for at least the intake valves in accordance with an operation condition of the engine in a low engine speed range; and a valve-drive mechanism controller controlling the valve-drive mechanism based on the target valve timing. Each of the target valve timings is differently set such that (a) a valve-overlap duration is provided in a negative pressure region; (b) the valve-overlap duration in the negative pressure region is made shorter in a first supercharging region; and (c) the valve-overlap duration in the first supercharging region is made longer in a second supercharging region where the higher load of the engine is required.
Public/Granted literature
- US20100024785A1 CONTROL APPARATUS AND CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE Public/Granted day:2010-02-04
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