Electric heating – Heating devices – With power supply and voltage or current regulation or...
Patent
1974-07-01
1976-03-23
Miller, J. D.
Electric heating
Heating devices
With power supply and voltage or current regulation or...
219499, 219501, H05B 102
Patent
active
039461980
ABSTRACT:
A system for controlling the application of heat energy to a ceramic exhaust gas sensor and for linearizing the output signal from the sensor is disclosed. The system compares, electrically, the resistance of a conductive heater winding against a fixed reference and permits a flow of electrical current through the heater whenever the comparison indicates that the temperature of the heater is below the desired level. By periodically establishing a flow of electrical energy through the heater and terminating that flow whenever the heater temperature reaches the desired level, the temperature of the heater may be held at the desired level with great accuracy. In order to periodically reestablish the flow of electrical energy through the heater, the system further provides an oscillator arranged to reestablish current flow through the heater a fixed time period following termination of current flow through the heater.
The system also provides a linearizing amplifier connected to the sensor to provide an output signal which is linear with respect to changes in the air/fuel ratio of the mixture being combusted.
REFERENCES:
patent: 3474258 (1969-10-01), Nagy
patent: 3548155 (1970-12-01), Rabindran
patent: 3564204 (1971-02-01), Mense
Bell Fred E.
Benziger Robert A.
Ford Motor Company
Miller J. D.
Zerschling Keith L.
LandOfFree
Electrical control system for an exhaust gas sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrical control system for an exhaust gas sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical control system for an exhaust gas sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1644729