公开(公告)号：EP2839124A4

公开(公告)日：2016-03-16

申请号：EP13777728

申请日：2013-04-22

申请人： EATON CORP

发明人： SCHULTHEIS OTTO JEROME ,  GORDON TONY ERIC ,  BIRLER MARK JOSEPH ,  KLINE PHILIP MICHAEL

IPC分类号： F01L1/18 ,  F01L1/08 ,  F01L13/00 ,  F02D13/00 ,  F02D17/00

CPC分类号： F01L13/0036 ,  F01L1/08 ,  F01L1/16 ,  F01L1/18 ,  F01L1/185 ,  F01L1/2405 ,  F01L1/245 ,  F01L1/46 ,  F01L3/08 ,  F01L3/24 ,  F01L2001/186 ,  F01L2101/00 ,  F01L2103/00 ,  F01L2105/00 ,  F01L2105/02 ,  F01L2820/04 ,  F01L2820/045 ,  F02D13/0211 ,  F02D13/023 ,  Y02T10/18

摘要： A system for controlling variable valve actuation in an automobile engine is disclosed. A first cam has a first lift profile and a second cam has a second lift profile, both profiles having a base circle portion and a lift portion. A rocker arm assembly engages the cams having a first arm for riding on the first cam, and a second arm for riding on the second cam. The second arm has an activatable latch capable of securing the second arm to the first arm when latched. The latch may only be latched while the arms are riding on the base circle portion of the cams. When the first arm is secured to the second arm, the rocker arm assembly achieves a first lift profile and when the first arm is not secured to the second arm, the rocker arm assembly achieves a second lift profile. A non-contact sensor mounted adjacent the rocker arm assembly is adapted to monitor and create data indicative of whether the first arm is secured to the second arm. An engine control unit (ECU) for controlling functioning of at least one aspect of said engine operation receives the signal from the non- contact sensor and control functioning of the at least one aspect of said engine operation based upon the received signal from the non-contact sensor. The rocker assembly can be designed to attain constant lash. Methods of precision manufacturing are also disclosed.

摘要翻译： 公开了一种用于控制汽车发动机中可变气门致动的系统。 第一凸轮具有第一提升轮廓，并且第二凸轮具有第二提升轮廓，两个轮廓具有基圆部分和提升部分。 摇臂组件接合具有用于骑在第一凸轮上的第一臂的凸轮和用于骑在第二凸轮上的第二臂。 第二臂具有可锁定的闩锁，当闩锁时可将第二臂固定到第一臂。 只有当手臂骑在凸轮的基圆部分上时，闩锁才可以被闩锁。 当第一臂被固定到第二臂时，摇臂组件实现第一升力曲线，并且当第一臂未固定到第二臂时，摇臂组件实现第二升力曲线。 安装在摇臂组件附近的非接触式传感器适用于监视和产生指示第一臂是否固定到第二臂的数据。 用于控制所述发动机操作的至少一个方面的功能的发动机控制单元（ECU）接收来自非接触式传感器的信号，并且基于来自非接触传感器的接收信号控制所述发动机操作的至少一个方面的功能， 接触传感器 摇臂组件可以设计成可以实现持续的间隙。 还公开了精密制造方法。