基本信息:
- 专利标题： VERFAHREN UND VORRICHTUNG ZUM KALIBRIEREN EINES DRUCKSENSORS
- 专利标题（英）：Method and device for calibrating a pressure sensor
- 专利标题（中）：方法和设备的校准压力传感器
- 申请号：EP01911382.8 申请日：2001-01-24
- 公开(公告)号：EP1255926B1 公开(公告)日：2009-07-29
- 发明人： JOOS, Klaus , WOLBER, Jens , FRENZ, Thomas , BOCHUM, Hansjoerg , KUESELL, Matthias , AMLER, Markus
- 申请人： ROBERT BOSCH GMBH
- 申请人地址： Postfach 30 02 20 70442 Stuttgart DE
- 专利权人： ROBERT BOSCH GMBH
- 当前专利权人： ROBERT BOSCH GMBH
- 当前专利权人地址： Postfach 30 02 20 70442 Stuttgart DE
- 优先权： DE10003906 20000129
- 国际公布： WO2001055573 20010802
- 主分类号： F02D41/38
- IPC分类号： F02D41/38 ; F02M65/00
摘要：
The invention relates to a method and a device for calibrating a pressure sensor (7) of a fuel dosing system of an internal combustion engine. Said fuel dosing system comprises a high-pressure pump (2) that delivers fuel from a low-pressure zone (ND) to a high-pressure zone (HD). The injectors (5) that dose the fuel from the high-pressure zone (HD) into the combustion chambers (6) of the internal combustion engine are controlled according to working characteristics. The dosing system further comprises the pressure sensor (7) that measures the pressure in the high-pressure zone (HD). The aim of the invention is to calibrate the pressure sensor (7) in such a manner that the offset-error can be reduced to a minimum. To this end, the pressure in the high-pressure zone (HD) is used as a reference pressure, the pressure in the high-pressure zone (HD) is measured by the pressure sensor (7) as the sensor pressure and the characteristic line of the pressure sensor (7) is corrected in such a manner that the difference from reference pressure and sensor pressure is reduced to a minimum.
公开/授权文献:
- EP1255926A2 VERFAHREN UND VORRICHTUNG ZUM KALIBRIEREN EINES DRUCKSENSORS 公开/授权日：2002-11-13