Evaluation device for measuring signals of a lambda probe

Details Evaluation device for measuring signals of a lambda probe Evaluation device for measuring signals of a lambda probe

1988-11-23

1989-11-07

Myracle, Jerry W.

Measuring and testing

Simulating operating condition

Marine

123489, G01M 1500

Patent

active

048783811

ABSTRACT:
An evaluation device for producing an interference free output signal from a measuring signal of a lambda probe arranged in an exhaust gas outlet of an internal combustion engine includes the following function units: an integrator for integrating the measuring signal from the probe for an adjustable time interval; a computer for computing from predetermined operational variables of the engine periods of pressure pulsations of the exhaust gas; and a computerized timer cooperating with the computer to define a time interval for the integrating operation corresponding to an integer multiple of a period of special pulsations computed by the computer.

REFERENCES:
patent: 4601273 (1986-07-01), Kitahara et al.
patent: 4601276 (1986-07-01), Damson et al.

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