发明名称 |
Apparatus and method for detecting a load decrease when driving piezoelectric elements |
摘要 |
The invention describes a method and an apparatus for detecting a load decrease when driving a piezoelectric element, for example, used as an actuator in a fuel injection system of an internal combustion engine. The method and apparatus are characterized in that an error signal is generated when the piezoelectric element reaches a target voltage more quickly than a predetermined minimum time interval during a charging or discharging operation. <IMAGE> |
申请公布号 |
EP1138905(A1) |
申请公布日期 |
2001.10.04 |
申请号 |
EP20000106964 |
申请日期 |
2000.04.01 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
RUEGER, JOHANNES-JOERG;SCHULZ, UDO |
分类号 |
F02M51/00;F02D41/20;F02M51/06;H01L41/04;H01L41/083;H01L41/09 |
主分类号 |
F02M51/00 |
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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