Invention Grant
- Patent Title: Method and device for the control of the operating state of the catalytic converter of the exhaust line of an internal combustion engine
- Patent Title (中): 用于控制内燃机排气管线的催化转化器的运行状态的方法和装置
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Application No.: US12595271Application Date: 2008-03-28
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Publication No.: US08387365B2Publication Date: 2013-03-05
- Inventor: Nicolas Thouvenel , Nicolas Fabre , Baptiste Edeline
- Applicant: Nicolas Thouvenel , Nicolas Fabre , Baptiste Edeline
- Applicant Address: FR Boulogne Billancourt
- Assignee: Renault S.A.S.
- Current Assignee: Renault S.A.S.
- Current Assignee Address: FR Boulogne Billancourt
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: FR0754456 20070413
- International Application: PCT/FR2008/050551 WO 20080328
- International Announcement: WO2008/129224 WO 20081030
- Main IPC: F01N3/00
- IPC: F01N3/00 ; F01N3/10
Abstract:
A device for controlling the operating state of a catalytic converter in the exhaust line of an internal combustion engine, including a mechanism for determining the temperature upstream and downstream of the converter, a mechanism for injecting fuel in the exhaust line of the engine, a mechanism for calibrating a temperature model on a measured operating temperature of the catalytic converter, and a mechanism for calculating the integral of the difference between the measured temperature and the modeled temperature downstream of the converter.
Public/Granted literature
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