发明授权
- 专利标题: Method and device for calibrating a pressure sensor
- 专利标题(中): 用于校准压力传感器的方法和装置
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申请号: US10182464申请日: 2002-09-05
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公开(公告)号: US06802209B2公开(公告)日: 2004-10-12
- 发明人: Klaus Joos , Jens Wolber , Thomas Frenz , Hansjoerg Bochum , Matthias Kuesell , Markus Amler
- 申请人: Klaus Joos , Jens Wolber , Thomas Frenz , Hansjoerg Bochum , Matthias Kuesell , Markus Amler
- 优先权: DE10003906 20000129
- 主分类号: G01M1500
- IPC分类号: G01M1500
摘要:
The invention relates to a method and an arrangement for calibrating a pressure sensor (7) of a fuel-metering system of an internal combustion engine wherein the fuel-metering system includes: a high-pressure pump (2) for pumping fuel from a low-pressure region (ND) into a high-pressure region (HD) injectors (5) for metering the fuel from the high-pressure region (HD) into combustion chambers (6) of the internal combustion engine with the injectors (5) being drivable in dependence upon operating characteristic variables, and the pressure sensor (7) for measuring the pressure in the high-pressure region (HD). To calibrate the pressure sensor (7) so that the offset error is minimized, it is suggested that a pressure, which is present in the high-pressure region (HD), is applied as a reference pressure; that the pressure, which is present in the high-pressure region (HD), is measured as the sensor pressure by the pressure sensor (7); and, that the characteristic line of the pressure sensor (7) is so corrected that the difference of reference pressure and sensor pressure is minimized.
公开/授权文献
- US20030046990A1 Method and device for calibrating a pressure sensor 公开/授权日:2003-03-13