Boots – shoes – and leggings
Patent
1995-07-10
1998-02-17
Gordon, Paul P.
Boots, shoes, and leggings
36443105, G06F 1400
Patent
active
057197784
ABSTRACT:
In a heater control of an oxygen sensor, a heater control circuit is rendered fully conductive at 100% duty initially to supply full power to a heater until the resistance value of the heater reaches a predetermined initial value corresponding to a predetermined temperature. Then, the duty of the heater control circuit is feedback controlled so that the heater temperature becomes a target value until the internal resistance of the oxygen sensor reaches a target temperature, and further, after the internal resistance of the oxygen sensor S reaches the target temperature, the duty of the heater control circuit is feedback controlled so that the element temperature of the sensor becomes a target value.
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Hasegawa Jun
Isomura Shigenori
Mizoguchi Tomomichi
Suzumura Toshihiro
Yamashita Yukihiro
Gordon Paul P.
Nippondenso Co. Ltd.
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