Oxygen sensor heater control methods and systems

Details Oxygen sensor heater control methods and systems Oxygen sensor heater control methods and systems

2007-01-31

2008-12-23

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

Reexamination Certificate

active

07467628

ABSTRACT:
A control system for an oxygen sensor heater is provided. The control system includes a passive heater control module that generates a heater control signal at a first duty cycle and measures a resistance of the oxygen sensor heater. An exhaust gas temperature mapping module maps the resistance to an exhaust gas temperature. An active heater control module generates a heater control signal at a second duty cycle based on the exhaust gas temperature.

REFERENCES:
patent: 4655182 (1987-04-01), Nakano et al.
patent: 4708777 (1987-11-01), Kuraoka
patent: 5353774 (1994-10-01), Furuya
patent: 5596975 (1997-01-01), Thomas et al.
patent: 5676811 (1997-10-01), Makino et al.
patent: 5701877 (1997-12-01), Aoki
patent: 5836292 (1998-11-01), Aoki
patent: 5901553 (1999-05-01), Cullen
patent: 6314790 (2001-11-01), Sagisaka et al.
patent: 6651639 (2003-11-01), Hada et al.
patent: 6781098 (2004-08-01), Toyoda
patent: 2002/0078938 (2002-06-01), Hada et al.
patent: 2003/0019486 (2003-01-01), Hada et al.

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