Method of controlling the temperature of an exhaust gas probe

Details Method of controlling the temperature of an exhaust gas probe Method of controlling the temperature of an exhaust gas probe

1992-02-25

1992-12-01

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

60276, 123688, 123697, F01N 320

Patent

active

051671204

ABSTRACT:
The invention is directed to a method for the temperature open-loop control and closed-loop control of exhaust gas probes for mixture control systems having several heatable exhaust gas probes. For this purpose, the temperature of one exhaust gas probe is closed-loop controlled in a control loop and the heaters of other exhaust gas probes are open-loop controlled. The closed-loop controlled exhaust gas probe controls the open-loop controlled exhaust gas probes insofar as the actuating variable of the temperature control loop is used as the output value for the temperature open-loop control of the other exhaust gas probes.

REFERENCES:
patent: 4007589 (1977-02-01), Neidhard et al.
patent: 4291572 (1981-09-01), Maurer et al.
patent: 4294679 (1981-10-01), Maurer et al.
patent: 4993392 (1991-02-01), Tanaka
patent: 5101625 (1992-04-01), Sugino

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