Measuring and testing – Simulating operating condition – Marine
Patent
1998-04-07
2000-12-26
Dombroske, George
Measuring and testing
Simulating operating condition
Marine
73 2332, 60277, 701 34, 701109, G01M 1900
Patent
active
061641251
ABSTRACT:
A gas concentration sensor voltage and current (in both heater on and heater off states) are detected and compared with predetermined thresholds, respectively, by a microcomputer. Based on a combination of the comparison results, the presence or absence of trouble in the system is detected and trouble location in the system is specified. In addition or alternatively, the sensor voltage is compared with thresholds to determine whether it is outside of a normal zone. The voltage may be actually detected or calculated. If the voltage is outside the normal zone, sensor voltage is reduced to zero or restricted to a predetermined limit.
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Haseda Satoshi
Kawase Tomoo
Kurokawa Eiichi
Suzuki Toshiyuki
Yamashita Yukihiro
Denso Corporation
Dombroske George
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