Method for monitoring lambda sensors

Details Method for monitoring lambda sensors Method for monitoring lambda sensors

1994-03-15

1996-02-06

Wieder, Kenneth A.

Measuring and testing

Simulating operating condition

Marine

73 1G, 73116, G01M 1900

Patent

active

054888581

ABSTRACT:
A method for monitoring lambda sensors includes ascertaining a reference value from a magnitude of switching times under operating conditions of a lambda regulation cycle, in which a sensor signal changes from a rich value to a lean value or from a lean value to a rich value. A sensor is classified as functioning correctly if the reference value is less than an associated limit value.

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