Invention Grant
- Patent Title: Method and associated device for sensing the air/fuel ratio of an internal combustion engine
- Patent Title (中): 用于感测内燃机的空燃比的方法和相关装置
-
Application No.: US12202646Application Date: 2008-09-02
-
Publication No.: US07962272B2Publication Date: 2011-06-14
- Inventor: Nicola Cesario , Paolo Amato , Maurizio Di Meglio , Francesco Pirozzi , Giovanni Moselli , Ferdinando Taglialatela-Scafati , Francesco Carpentieri
- Applicant: Nicola Cesario , Paolo Amato , Maurizio Di Meglio , Francesco Pirozzi , Giovanni Moselli , Ferdinando Taglialatela-Scafati , Francesco Carpentieri
- Applicant Address: IT Agrate Brianza (MI)
- Assignee: STMicroelectronics S.R.L.
- Current Assignee: STMicroelectronics S.R.L.
- Current Assignee Address: IT Agrate Brianza (MI)
- Agency: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- Agent Lisa K. Jorgenson
- Priority: EP05425121 20050304
- Main IPC: F02D45/00
- IPC: F02D45/00
Abstract:
A method of sensing the air/fuel ratio in a combustion chamber of an internal combustion engine that may be easily implemented by a respective low-cost device includes a pressure sensor and a learning machine that generates a sensing signal representing the air/fuel ratio by processing the waveform of the pressure in at least one cylinder of the engine. In practice, the learning machine extracts characteristic parameters of the waveform of the pressure and as a function of a certain number of them generates the sensing signal.
Public/Granted literature
- US20090005953A1 METHOD AND ASSOCIATED DEVICE FOR SENSING THE AIR/FUEL RATIO OF AN INTERNAL COMBUSTION ENGINE Public/Granted day:2009-01-01
Information query
