发明名称 |
METHOD AND DEVICE FOR MEASURING THE ROTATIONAL SPEED OF A TURBOCOMPRESSOR, AND MOTOR VEHICLE |
摘要 |
A method and a device for measuring the rotational speed of a turbocompressor, in particular a turbocharger of a motor vehicle. A frequency of pressure pulses generated in the medium the blades or by the shaft of the turbocompressor is measured using high-frequency signal portion of a pressure sensor, and the turbocompressor rotational speed is ascertained from the measured pressure pulse frequency. Furthermore, the charge pressure of the turbocompressor can be ascertained from the low-frequency signal of the pressure sensor so that a single sensor is sufficient for both measurements. The pressure sensor can be arranged in the intake system downstream of the compressor, upstream or downstream of an intercooler. |
申请公布号 |
EP2694984(A1) |
申请公布日期 |
2014.02.12 |
申请号 |
EP20120717631 |
申请日期 |
2012.04.05 |
申请人 |
CONTINENTAL AUTOMOTIVE GMBH |
发明人 |
REITMEIER, WILLIBALD;SIEWERT, BERND;WEIGL, MANFRED;WILDGEN, ANDREAS |
分类号 |
G01P3/48 |
主分类号 |
G01P3/48 |
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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