Invention Grant
- Patent Title: System and method for determining oxygen sensor heater resistance
- Patent Title (中): 确定氧传感器加热器电阻的系统和方法
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Application No.: US12391540Application Date: 2009-02-24
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Publication No.: US08014930B2Publication Date: 2011-09-06
- Inventor: Igor Anilovich , John W. Siekkinen , Michael John Dokter , Jens Vollstaedt , Michael Schellong , Per-Olof Blom
- Applicant: Igor Anilovich , John W. Siekkinen , Michael John Dokter , Jens Vollstaedt , Michael Schellong , Per-Olof Blom
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Main IPC: F02D45/00
- IPC: F02D45/00 ; F01N9/00 ; G06F19/00
Abstract:
An engine control module includes an exhaust heating module, a temperature determination module, and a resistance measuring module. The exhaust heating module operates an engine at a predetermined speed to generate an exhaust gas having a predetermined temperature. The exhaust gas heats a heating element of an oxygen sensor. The temperature determination module determines, based on the predetermined speed, when the heating element is heated to the predetermined temperature. The resistance measuring module determines a resistance of the heating element when the heating element is heated to the predetermined temperature.
Public/Granted literature
- US20100114453A1 SYSTEM AND METHOD FOR DETERMINING OXYGEN SENSOR HEATER RESISTANCE Public/Granted day:2010-05-06
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