发明名称 |
Engine deficiency indicator |
摘要 |
An engine deficiency indicator includes a detector for detecting a pre-determined amount of angular rotation of an engine. The detector generates a first signal upon the start of one period of rotation of the engine which enables a counter for counting clock pulses. A second signal from the sensor, indicative of the completion of the pre-determined amount of angular rotation of the engine, disables the counter. A processing unit reads and stores the counter data in a memory. The counter data corresponds to the time required for the engine to rotate through a pre-determined amount of angular rotation. At the completion of a pre-determined number of engine rotational cycles, the processing unit analyzes the stored time sequence signals using a discrete Fourier transform analysis and/or an autocorrelation analysis to generate a manifestation of deficient engine operation. A display connected to the processing unit provides a visual or audible indication of efficient or deficient engine operation.
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申请公布号 |
US4627275(A) |
申请公布日期 |
1986.12.09 |
申请号 |
US19840607570 |
申请日期 |
1984.05.07 |
申请人 |
WAYNE STATE UNIVERSITY |
发明人 |
HENEIN, NAEIM A.;SOOD, ARUN K. |
分类号 |
F02D41/34;G01P3/489;(IPC1-7):G01M15/00 |
主分类号 |
F02D41/34 |
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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