发明名称 |
Capacitive sensing apparatus for sensing a plurality of operating parameters associated with an engine |
摘要 |
In one aspect of the invention, an apparatus for sensing a plurality of operating parameters of an internal combustion engine is disclosed. An energy source supplies electrical energy to the pistons, whereby each piston forms a variable capacitor with the engine housing. The capacitance value of each variable capacitor changes as a function of the relative position of the piston to the housing. An oscillator circuit produces a capacitive signal that is indicative of the capacitance value of each variable capacitor. A microprocessor receives the capacitive signal and responsively determines one of a plurality of operating parameters of the engine.
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申请公布号 |
US5528928(A) |
申请公布日期 |
1996.06.25 |
申请号 |
US19950380894 |
申请日期 |
1995.01.30 |
申请人 |
CATERPILLAR INC. |
发明人 |
BAKER, THOMAS M.;CODINA, GEORGE;CRAYTON, JOHN W. |
分类号 |
G01M15/04;G01M15/06;(IPC1-7):G01M15/00 |
主分类号 |
G01M15/04 |
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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