Invention Grant
- Patent Title: Method and system for controlling an internal combustion engine
- Patent Title (中): 用于控制内燃机的方法和系统
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Application No.: US12391974Application Date: 2009-02-24
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Publication No.: US08150597B2Publication Date: 2012-04-03
- Inventor: Masahisa Yamakawa , Toshiaki Nishimoto , Hirokazu Matsuura , Takashi Youso , Kouji Shishime , Mikinori Ohashi
- Applicant: Masahisa Yamakawa , Toshiaki Nishimoto , Hirokazu Matsuura , Takashi Youso , Kouji Shishime , Mikinori Ohashi
- Applicant Address: JP Hiroshima
- Assignee: Mazda Motor Corporation
- Current Assignee: Mazda Motor Corporation
- Current Assignee Address: JP Hiroshima
- Agency: Alleman Hall McCoy Russell & Tuttle LLP
- Priority: JP2008-044471 20080226; JP2008-044474 20080226
- Main IPC: G06F19/00
- IPC: G06F19/00 ; F02D13/02 ; F02D41/10 ; F02B75/12 ; F01L1/34

Abstract:
Methods and systems for controlling an internal combustion engine are provided. One example method may include closing an intake valve later during a cylinder cycle than a timing with which an amount of air inducted into a cylinder from an air intake passage would be maximized, and earlier during the cylinder cycle as a desired amount of air to be inducted into the cylinder increases, while an engine is operating at a given engine speed. The method may further include closing the intake valve earlier during a cylinder cycle as the engine speed increases when the desired amount of air to be inducted into the cylinder is at a maximum.
Public/Granted literature
- US20090216427A1 METHOD AND SYSTEM FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE Public/Granted day:2009-08-27
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