Invention Grant
- Patent Title: Method and apparatus to control an exhaust gas sensor to a predetermined termperature
- Patent Title (中): 将废气传感器控制到预定温度的方法和装置
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Application No.: US10286201Application Date: 2002-10-31
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Publication No.: US07036982B2Publication Date: 2006-05-02
- Inventor: James Craig Smith , Wayne Richard Moore , Matthew G. Foster
- Applicant: James Craig Smith , Wayne Richard Moore , Matthew G. Foster
- Applicant Address: US MI Troy
- Assignee: Delphi Technologies, Inc.
- Current Assignee: Delphi Technologies, Inc.
- Current Assignee Address: US MI Troy
- Agent Jimmy L. Funke
- Main IPC: G01K13/00
- IPC: G01K13/00 ; F02D41/00 ; F01N3/00
Abstract:
The invention provides a control strategy and a control system to control a gas sensor to a target operating temperature. It relies upon both feedback and model-based feedforward control systems to achieve and then maintain the sensor at the target operating temperature. The mechanization includes a gas sensor with a heating element in a feedstream. The control strategy employs a control system for the heating element that is based upon the target operating temperature, the temperature of the heating element, and an effect of the feedstream and mounting structure on the temperature of the sensor. The control strategy enables the control system to optimize the heating of a sensor during warm-up and steady state operations.
Public/Granted literature
- US20040086023A1 Method and apparatus to control an exhaust gas sensor to a predetermined temperature Public/Granted day:2004-05-06
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