Invention Grant
- Patent Title: Intake air volume controller of internal combustion engine
- Patent Title (中): 内燃机进气量控制器
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Application No.: US10561047Application Date: 2004-05-28
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Publication No.: US07295912B2Publication Date: 2007-11-13
- Inventor: Yuji Yasui , Akiyuki Yonekawa
- Applicant: Yuji Yasui , Akiyuki Yonekawa
- Applicant Address: JP Tokyo
- Assignee: Honda Motor Co., Ltd.
- Current Assignee: Honda Motor Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Arent Fox LLP
- Priority: JP2003-191443 20030703
- International Application: PCT/JP2004/007353 WO 20040528
- International Announcement: WO2005/003534 WO 20050113
- Main IPC: F02D41/26
- IPC: F02D41/26 ; F01L1/34

Abstract:
An intake air amount control system for an internal combustion engine, which controls respective amounts of intake air drawn into four cylinders #1 to #4, independently of each other, by variable inter-intake cam phase mechanisms 80, identifies intake air amount variation coefficients Φ#i, based on a model [equation (43)] defining a relationship between an estimated value Gth_est of a TH passing intake air amount and a plurality of simulation values Gcyl_OS#i, such that the estimated value Gth_est becomes equal to the TH passing intake air amount, calculates a target inter-intake cam phase θssi#i_cmd, on a cylinder-by-cylinder basis, according to the identified intake air amount variation coefficients Φ#i (step 81), and calculates control input DUTY_ssi#2 to #4 to the variable inter-intake cam phase mechanisms 80 according to the target inter-intake cam phases θssi#i_cmd (step 75).
Public/Granted literature
- US20070006830A1 Intake airvolume controller of internal combustion engine Public/Granted day:2007-01-11
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