发明名称 |
Method and device for monitoring a heating device of a sensor mounted in the exhaust system of an internal combustion engine |
摘要 |
A method and device for monitoring a heating device of a sensor mounted in the exhaust system of an internal combustion engine. In assessing the working order of the heating device, use is made of the fact that a sensor heated by a heating element heats up more strongly than an unheated sensor, and that it is possible to establish, with the aid of the signals output by the sensor, whether the sensor has exceeded its minimum operating temperature. The temperature of the sensor is simulated as a function of internal combustion engine operating characteristics. The working order of the heating device can be assessed with the aid of the simulated temperature and the information as to whether the minimum operating temperature is exceeded.
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申请公布号 |
US5669219(A) |
申请公布日期 |
1997.09.23 |
申请号 |
US19950468862 |
申请日期 |
1995.06.06 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
SCHNAIBEL, EBERHARD;JUNGINGER, ERICH;SCHNEIDER, ERICH |
分类号 |
G01N27/409;F02D41/14;G01N27/406;(IPC1-7):F01N3/28 |
主分类号 |
G01N27/409 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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