发明名称 |
METHOD FOR DIAGNOSIS IN A FUEL INJECTION DEVICE COMPRISING A PIEZOACTUATOR |
摘要 |
<p>A method for diagnosing a fuel injection device which includes a piezoelectric actuator, with which a valve element is actuated. The fuel injection device is connected to a diagnostic device which applies a defined voltage to the piezoelectric actuator. The charge introduced into the piezoelectric actuator, and from that a capacitance of the piezoelectric actuator, are ascertained by means of the diagnostic device.</p> |
申请公布号 |
EP1697633(A1) |
申请公布日期 |
2006.09.06 |
申请号 |
EP20040762625 |
申请日期 |
2004.08.07 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
SCHOOR, ULRICH;SUTTER, KAI |
分类号 |
F02M65/00;F02D41/20;F02D41/22;F02M63/00;F02M63/02;G01R31/28 |
主分类号 |
F02M65/00 |
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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