发明名称 |
Knock sensing apparatus with fail indicator for use in an internal combustion engine |
摘要 |
The knock sensing equipment has a control circuit which generates gating signals for dividing the operation into a measuring phase and a test phase. In the latter, the possible malfunction of the sensor is determined. During the test phase, the sensor responds either to background noise or to a test voltage and the sensing output signals are compared to a predetermined minimum and/or maximum level. Malfunction is indicated if the signals furnished by the sensor are outside of the indicated range.
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申请公布号 |
US4418567(A) |
申请公布日期 |
1983.12.06 |
申请号 |
US19800195385 |
申请日期 |
1980.10.09 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
BOENING, BERNWARD;NAGEL, RUDOLF;HOENIG, GUENTER;KIENCKE, UWE;THEUERKAUF, HEINZ |
分类号 |
F02D45/00;F02P5/152;F02P5/153;G01H17/00;G01L23/22;G01M15/00;(IPC1-7):G01L23/22 |
主分类号 |
F02D45/00 |
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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