EP1472454B1 VERFAHREN UND VORRICHTUNG ZUR DETEKTION VON BETRIEBSZUSTÄNDEN EINER PUMPE-DÜSE-EINHEIT
有权
基本信息:
- 专利标题： VERFAHREN UND VORRICHTUNG ZUR DETEKTION VON BETRIEBSZUSTÄNDEN EINER PUMPE-DÜSE-EINHEIT
- 专利标题（英）：Method and device for detecting operating states of a pump-nozzle unit
- 专利标题（中）：方法和设备检测泵喷嘴单元的操作条件
- 申请号：EP03708014.0 申请日：2003-02-03
- 公开(公告)号：EP1472454B1 公开(公告)日：2009-08-12
- 发明人： HIRN, Rainer , PIRKL, Richard , VOIGT, Peter
- 申请人： Continental Automotive GmbH
- 申请人地址： Vahrenwalder Strasse 9 30165 Hannover DE
- 专利权人： Continental Automotive GmbH
- 当前专利权人： Continental Automotive GmbH
- 当前专利权人地址： Vahrenwalder Strasse 9 30165 Hannover DE
- 优先权： DE10205113 20020207
- 国际公布： WO2003067073 20030814
- 主分类号： F02M57/02
- IPC分类号： F02M57/02 ; F02M59/46 ; F02M59/36 ; F02M45/02 ; F02D41/20 ; H01L41/04
摘要：
The invention relates to the detection of the hydraulic shut-off and/or mechanical coupling of a pump-nozzle unit provided with a piezo control valve (22), whereby either the piezo current (i(t)) alone or exclusively the piezo voltage (u(t)) is compared with a predefined threshold value. Either an essentially constant value, preferably zero volts, is forcibly obtained during the detection phase for the piezo voltage (u(t)) which is not taken into consideration for the purpose of said comparison, or an at least essentially constant value of preferably zero volts is forcibly obtained for the piezo current (i(t)) which is not taken into account for the purpose of said comparison.
公开/授权文献:
IPC结构图谱:
| F | 机械工程；照明；加热；武器；爆破 |
| --F02 | 燃烧发动机；热气或燃烧生成物的发动机装置 |
| ----F02M | 一般燃烧发动机可燃混合物的供给或其组成部分 |
| ------F02M57/00 | 与其他装置组合或结合一起的燃料喷射器 |
| --------F02M57/02 | .在结构上与燃料喷射泵在一起的喷射器 |