Internal-combustion engines – Charge forming device – Including exhaust gas condition responsive means
Patent
1995-07-03
1996-08-13
Dolinar, Andrew M.
Internal-combustion engines
Charge forming device
Including exhaust gas condition responsive means
123697, 73 2332, F02D 4114, G01N 27416
Patent
active
055446400
ABSTRACT:
A circuit and method are provided for heating a dual heater oxygen sensor. One resistance element is of relatively low resistance such that the oxygen sensor is heated quickly and the other element is of relatively high resistance such that the oxygen sensor is heated and maintained at an optimal operating temperature. The circuit and associated method turn on a low resistance start heater that is in communication with the oxygen sensor given start-up conditions. Once the oxygen sensor has reached an operating temperature range a high resistance operating temperature heater is turned on and the start heater is turned off.
REFERENCES:
patent: 3938479 (1976-02-01), Oberstadt
patent: 4291572 (1981-02-01), Maufer et al.
patent: 4464244 (1984-08-01), Uchida et al.
patent: 4471648 (1984-09-01), Uchida et al.
patent: 4510036 (1985-04-01), Takeuchi et al.
patent: 4548179 (1985-10-01), Ninomiya et al.
patent: 4655182 (1987-04-01), Nakano et al.
patent: 4753204 (1988-01-01), Kojima et al.
patent: 4808009 (1989-02-01), Sittler et al.
patent: 4889098 (1989-12-01), Suzuki et al.
patent: 4963246 (1990-10-01), Nakajima et al.
patent: 4993392 (1991-02-01), Tanaka et al.
patent: 5245979 (1993-09-01), Pursifull et al.
patent: 5353775 (1994-10-01), Yamashita et al.
Coatesworth Timothy A.
DeGroot Kenneth P.
Ehlers Jeffery C.
McMackin Mark E.
Thomas Christopher P.
Barger G. Andrew
Chrysler Corporation
Dolinar Andrew M.
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