Oxygen sensor monitor apparatus

Details Oxygen sensor monitor apparatus Oxygen sensor monitor apparatus

1978-01-04

1979-10-30

Cox, Ronald B.

Internal-combustion engines

Noncompression

123119EC, 60276, 60285, F02M 700, F02B 300

Patent

active

041724321

ABSTRACT:
For use in association with a fuel mixture preparation system of an internal combustion engine which uses closed-loop control based on exhaust chemistry as determined by an oxygen sensor, there is described a circuit which monitors the operational readiness of the oxygen sensor on the basis of its internal resistance. The measurement takes place in a bridge circuit which is supplied with current whenever the sensor is non-operative but which becomes inactive when the sensor is at normal temperatures. The bridge voltages are fed to a comparator which generates an average output value when the oxygen sensor is not yet ready for operation and this average signal is processed in an integrator for final control of the fuel-air mixture.

REFERENCES:
patent: 2355090 (1944-08-01), Love
patent: 3841283 (1974-10-01), Wood
patent: 4030462 (1977-06-01), Sasayama
patent: 4040408 (1977-08-01), Kraus
patent: 4120269 (1978-10-01), Fujishiro

Affiliated with

Also associated with

Rating

Oxygen sensor monitor apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oxygen sensor monitor apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxygen sensor monitor apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-15493