发明申请
- 专利标题: CONTROL APPARATUS FOR A CYLINDER DIRECT-INJECTION INTERNAL COMBUSTION ENGINE
- 专利标题(中): 一种缸直接喷射内燃机的控制装置
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申请号: US12866906申请日: 2009-02-19
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公开(公告)号: US20110005496A1公开(公告)日: 2011-01-13
- 发明人: Koji Hiraya , Daisuke Tanaka , Shunsuke Shigemoto , Hirofumi Tsuchida
- 申请人: Koji Hiraya , Daisuke Tanaka , Shunsuke Shigemoto , Hirofumi Tsuchida
- 申请人地址: JP Kanagawa
- 专利权人: NISSAN MOTOR CO., LTD.
- 当前专利权人: NISSAN MOTOR CO., LTD.
- 当前专利权人地址: JP Kanagawa
- 优先权: JP2008-052342 20080303; JP2009-012699 20090123
- 国际申请: PCT/IB09/00299 WO 20090219
- 主分类号: F02B75/04
- IPC分类号: F02B75/04 ; F02M51/00
摘要:
A control apparatus is provided for a four stroke cylinder direct-injection internal combustion engine having a cylinder and a piston disposed within the cylinder. The control apparatus includes a variable compression ratio mechanism for variably controlling the engine compression ratio by changing the top dead center position of the piston and a fuel injection device for injecting fuel directly into the cylinder. When the actual compression ratio of the engine is higher than a target compression ratio, the variable compression ratio mechanism reduces the compression ratio, and in accordance with the reduction in the compression ratio, the fuel injecting device injects an intake fuel injection amount in the intake stroke and a compression fuel injection amount in the compression stroke, and the timing for starting the fuel injection in the compression stroke is retarded.