Apparatus for controlling heater for oxygen sensor and fuel cont

Details Apparatus for controlling heater for oxygen sensor and fuel cont Apparatus for controlling heater for oxygen sensor and fuel cont

1991-06-07

1992-05-12

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Having fluidic logic control means

123489, F02M 700

Patent

active

051117924

ABSTRACT:
An apparatus for controlling a heater for an oxygen sensor which includes a heater resistance value detecting unit for detecting a heater resistance value of the heater, the power control unit for controlling a power supplied to the heater so that the heater resistance value is equal to a target resistance value, and a target resistance value setting unit for calculating a rate of change in the heater resistance value of the heater measured by the heater resistance value detecting unit, and for determining the target resistance value on the basis of the rate of change in the heater resistance value.

REFERENCES:
patent: 4655182 (1987-04-01), Nakano et al.
patent: 4694809 (1987-09-01), Nakano et al.
patent: 4708777 (1987-11-01), Kuraoka
patent: 4715343 (1987-12-01), Kinoshita
patent: 4721084 (1988-01-01), Kawarabe et al.
patent: 4721088 (1988-01-01), Miano et al.
patent: 4915082 (1990-04-01), Uchinami et al.
patent: 4938196 (1990-07-01), Hashi et al.

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