Invention Grant
- Patent Title: Method of controlling air intake flow of an internal combustion engine, in particular for regenerating a nitric oxide adsorber
- Patent Title (中): 控制内燃机的进气流量的方法，特别是用于再生一氧化氮吸附器
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Application No.: US11355057Application Date: 2006-02-16
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Publication No.: US07918083B2Publication Date: 2011-04-05
- Inventor: Marco Tonetti , Alberto Gioannini , Francesco Bechis
- Applicant: Marco Tonetti , Alberto Gioannini , Francesco Bechis
- Applicant Address: IT Orbassano
- Assignee: C.F.R. Societa Consortile per Azioni
- Current Assignee: C.F.R. Societa Consortile per Azioni
- Current Assignee Address: IT Orbassano
- Agency: Davidson Berquist Jackson & Gowdey, LLP
- Priority: EP05425285 20050503
- Main IPC: F01N3/00
- IPC: F01N3/00
Abstract:
There is described a method of controlling air intake flow of an internal combustion engine (1), the method including the steps of calculating a reference airflow (AREF) as the sum of a feed-forward contribution (AFF), calculated as a function of the reference air/fuel ratio ((A/F)REF) to be obtained in the combustion chamber, and a feed-back contribution (AFB), calculated as a function of the oxygen concentration (% O2) of the exhaust gas; and closed-loop controlling the air intake flow of the engine so that it equals the reference airflow (AREF).
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