Control device for heater for oxygen sensor operative to correct

Internal-combustion engines – Charge forming device – Fuel injection system

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204425, F02D 4114

Patent

active

049381962

ABSTRACT:
For controlling supply of electric power to a heater for an oxygen sensor for detecting oxygen in an exhaust system of an internal combustion engine so as to maintain the electric resistance of the heater to a target value therefor, the target value is corrected based upon detection of the amount of electric power supplied to the heater so that difference between the detected amount of electric power supplied to the heater and a standard value therefor is cancelled.

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