Power plants – Internal combustion engine with treatment or handling of... – Methods
Patent
1996-07-02
1998-06-02
Wolfe, Willis R.
Power plants
Internal combustion engine with treatment or handling of...
Methods
60277, 60300, 219497, F01N 328, F01N 320, F01N 900
Patent
active
057584923
ABSTRACT:
A system for detecting a failure of an electrically heated catalytic converter installed in an exhaust system of the engine for reducing pollutants from exhaust gases emitted from the engine, the catalytic converter having a heater which is connected with the power source to be supplied with current. A parameter such as electric power consumption indicative of an electric resistance of the heater of the catalytic converter. If the parameter is out of a range defined by reference values, it is determined hat a failure has occurred in the heater of the catalytic converter. In the system, reference values at a specific condition based on a correction coefficient obtained on the ratio between the parameter designed before manufacturing and that measured after manufacturing.
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Aoki Takuya
Furumoto Hideo
Kato Hiroaki
Komatsuda Takashi
Nakayama Takayoshi
Honda Giken Kogyo Kabushiki Kaisha
Wolfe Willis R.
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