发明名称 |
METHOD FOR EVALUATING CHARACTERISTIC VALUES OF PIEZO-MECHANICAL SYSTEMS |
摘要 |
For diagnosing coupled piezo-mechanical systems, methods are used which utilize electrical characteristic curves of the piezo-element that is contained in the piezo-mechanical systems. These electrical characteristic curves contain information about the mechanical condition of the overall piezo-mechanical system, which can be interpreted by suitable evaluating methods. It is thus possible to perform a diagnosis in which malfunctions and failures of the piezo-mechanical system can be detected (e.g. wear or failure of particular components). An important field of application is the diagnosis of fuel injectors which are controlled via piezo-actuators. |
申请公布号 |
EP1055107(B1) |
申请公布日期 |
2002.05.29 |
申请号 |
EP19990908764 |
申请日期 |
1999.02.03 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
MOCK, RANDOLF;CHEMISKY, ERIC;KAPPEL, ANDREAS |
分类号 |
F02D41/20;F02D41/22;G01R29/22;H02N2/06 |
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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