发明名称 |
Method and device for monitoring a fuel pressure sensor |
摘要 |
The fuel pressure sensor (58) is located in a fuel accumulator (55) of an engine with fuel pumps (51,54) and injection valves (34). A temporary change in the fuel pressure determined by the sensor is compared to a temporary change in an estimated fuel pressure, and a sensor error is recognized dependent upon the comparison. The change in the estimated pressure is calculated dependent upon a fuel volume supplied by the injection valves, and a fuel volume supplied by the pump into the tank. The comparison is carried out only, when the change in actual fuel pressure exceeds a set value.
|
申请公布号 |
EP1526269(A2) |
申请公布日期 |
2005.04.27 |
申请号 |
EP20040104594 |
申请日期 |
2004.09.22 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
DELP, MATTHIAS;ESER, GERHARD |
分类号 |
F02D41/22;F02D41/38;(IPC1-7):F02D41/38 |
主分类号 |
F02D41/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|