公开(公告)号：US20120272646A1

公开(公告)日：2012-11-01

申请号：US13454176

申请日：2012-04-24

申请人： Yuichiro MORITANI ,  Shinsuke MIYAZAKI ,  Kazushi SASAKI ,  Koji HASHIMOTO

发明人： Yuichiro MORITANI ,  Shinsuke MIYAZAKI ,  Kazushi SASAKI ,  Koji HASHIMOTO

IPC分类号： F02M25/07 ,  F02B33/44

CPC分类号： F02D41/221 ,  F02B29/0406 ,  F02D41/0077 ,  F02D2041/0017 ,  F02D2200/0404 ,  F02M26/05 ,  F02M26/06 ,  F02M26/10 ,  F02M26/15 ,  F02M26/21 ,  F02M26/24 ,  F02M26/25 ,  F02M26/54 ,  F02M26/64 ,  F02M26/70 ,  Y02T10/47

摘要： When a failure occurs in synchronizing mechanism, an intake air throttle valve is rotated in a direction that is opposite from a normal operational time valve closing direction, so that an arm of a driven plate contacts a throttle valve side stopper to stop rotation of the intake air throttle valve. Thereafter, when a low pressure EGR valve is rotated from a full close position to a full open position, an EGR valve side stopper contacts the arm of the driven plate to stop the low pressure EGR valve. A rotational angle of the EGR valve is sensed with a sensor and is outputted to an ECU. The ECU determines that a failure mode is set when a valve angle sensed with the sensor coincides with a rotation stop position of the EGR valve.

摘要翻译： 当同步机构发生故障时，进气节气门在与正常操作时间阀关闭方向相反的方向上旋转，从而驱动板的臂接触节流阀侧挡块以停止进气口的旋转 空气节流阀。 此后，当低压EGR阀从完全关闭位置旋转到完全打开位置时，EGR阀侧止动器接触从动板的臂以停止低压EGR阀。 用传感器检测EGR阀的旋转角度，并将其输出到ECU。 当用传感器检测到的阀角与EGR阀的旋转停止位置一致时，ECU确定故障模式被设定。