发明授权
US07877186B2 Method and system for identifying a malfunctioning compressed air consumer circuit in a vehicle electronic compressed air system
有权
用于识别车辆电子压缩空气系统中的故障压缩空气消耗电路的方法和系统
- 专利标题： Method and system for identifying a malfunctioning compressed air consumer circuit in a vehicle electronic compressed air system
- 专利标题（中）： 用于识别车辆电子压缩空气系统中的故障压缩空气消耗电路的方法和系统
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申请号： US10566055申请日： 2004-07-12
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公开(公告)号： US07877186B2公开(公告)日： 2011-01-25
- 发明人: Carsten Detlefs , Heinrich Diekmeyer , Frank-Dietmar Lippelt , Joachim Reinhardt , Bernd Strilka
- 申请人： Carsten Detlefs , Heinrich Diekmeyer , Frank-Dietmar Lippelt , Joachim Reinhardt , Bernd Strilka
- 申请人地址： DE Hannover
- 专利权人： WABCO GmbH
- 当前专利权人： WABCO GmbH
- 当前专利权人地址： DE Hannover
- 代理机构： Kramer Levin Naftalis & Frankel LLP
- 优先权： DE10334316 20030728; DE10357766 20031210
- 国际申请： PCT/EP2004/007652 WO 20040712
- 国际公布： WO2005/014360 WO 20050217
- 主分类号： G06F7/00
- IPC分类号： G06F7/00 ; F04B49/00 ; F02B23/00
摘要：
To detect a failure of a compressed air consumer circuit in a compressed air system for vehicles, pressure is continuously measured in compressed air consumer circuits and evaluated in an electronic control unit which compares the pressure values and/or determined negative pressure gradients of the compressed air consumer circuits with a respective threshold value and shuts off an air-consumer circuit if the pressure values and/or negative pressure gradients thereof satisfy a circuit-failure criterion. The circuit-failure criterion is satisfied when the pressure values and/or pressure gradients are below the respective threshold value for a time equal to or longer than the time of a dynamic pressure change or of a dynamic pressure collapse.