Measuring and testing – Simulating operating condition – Marine
Patent
1978-04-06
1979-04-17
Myracle, Jerry W.
Measuring and testing
Simulating operating condition
Marine
G01M 1500
Patent
active
041494083
ABSTRACT:
At least one engine parameter is used to estimate the state of the gas sensor while the frequency of the feedback control signal produced in the closed loop control system is measured to see if it is normal or not. A logic circuit produces a pair of signals respectively indicative of normal or abnormal functioning of the closed loop control system in response to the estimated state of the gas sensor and the frequency of the feedback control signal, to illuminate visual indicators. An additional gas sensor tester is additionally provided for detecting the internal resistance of the sensor.
REFERENCES:
patent: 4004452 (1977-01-01), Logothetis et al.
patent: 4031747 (1977-06-01), Blanke
patent: 4088100 (1978-05-01), Tokura et al.
Ezoe Mitsuhiko
Tachibana Setsuzo
Adams Bruce L.
Burns Robert E.
Lobato Emmanuel J.
Myracle Jerry W.
Nissan Motor Company Limited
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