发明名称 |
Method and apparatus for monitoring a piezoelectric actuator |
摘要 |
<p>The method involves determining (140) a characteristic of the actuator, comparing (150) the determined characteristic with an expected characteristic and identifying a fault in the injector if there is a deviation between the determined and anticipated characteristics. It involves detecting charging values and associated voltage values during a charging process and/or a discharging process. Independent claims are also included for the following: (a) an arrangement for implementing the inventive method (b) and a method monitoring a piezoelectric actuator (c) a computer program for implementing the inventive method (d) a computer program product for implementing the inventive method (e) and a digital storage medium for interaction with a programmable computer system.</p> |
申请公布号 |
EP1450028(A2) |
申请公布日期 |
2004.08.25 |
申请号 |
EP20030104714 |
申请日期 |
2003.12.16 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
RAPP, HOLGER;GANGI, MARCO;SCHULZ, UDO |
分类号 |
F02D41/20;F02D41/22;F02M47/02;F02M59/46;F02M63/00;(IPC1-7):F02D41/20 |
主分类号 |
F02D41/20 |
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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