公开(公告)号：US06631699B2

公开(公告)日：2003-10-14

申请号：US10028749

申请日：2001-12-20

申请人： Michael Lutz ,  Manzurul Haque ,  Piero Caporuscio ,  Phillip G. Iott ,  Larry Hiltunen ,  Herbert Lacher ,  Nikolaus Kerner

发明人： Michael Lutz ,  Manzurul Haque ,  Piero Caporuscio ,  Phillip G. Iott ,  Larry Hiltunen ,  Herbert Lacher ,  Nikolaus Kerner

IPC分类号： F01L134

CPC分类号： F02D41/20 ,  F01L9/02 ,  F01L9/04 ,  F01L2800/00 ,  F02D13/0207 ,  F02D13/0253 ,  F02D2041/001 ,  F02D2041/2013 ,  F02D2041/2017 ,  F02D2041/2055 ,  F02D2041/2079 ,  F02M57/025 ,  Y02T10/18

摘要： A method for controlling valve actuation comprises the steps of communicating at least one dithering signal to preload the valve. An event signal is then communicated. The dithering signal is altered based on the cycle time for the valve. The preferred application is for camless engine valve control.

摘要翻译： 一种用于控制阀门致动的方法包括以下步骤：传送至少一个抖动信号以预加载阀。 然后传送事件信号。 抖动信号根据阀门的循环时间改变。 优选的应用是无凸轮发动机气门控制。

公开(公告)号：US06523523B2

公开(公告)日：2003-02-25

申请号：US09838791

申请日：2001-04-20

申请人： John C. McCoy ,  Larry Hiltunen ,  Piero Caporuscio ,  Herbert Lacher

发明人： John C. McCoy ,  Larry Hiltunen ,  Piero Caporuscio ,  Herbert Lacher

IPC分类号： F02M5100

CPC分类号： F02D41/009 ,  F01L1/46 ,  F01L9/04

摘要： A control for a camless engine is provided with a plurality of modules each associated with an individual cylinder. The modules are programmed to operate their respective cylinders once on each of two revolutions of a crankshaft. Thus, the control modules must have an indication of the point in the rotational cycle of the crankcase, but also a signal of which of the two revolutions in the two-revolution cycle is ongoing for the crankshaft. The crankshaft preferably provides a uniform signal for each of the two revolutions. The uniform signal is modified by a signal modification method such that the signal sent to the modules is distinct for each of the two revolutions. In a preferred embodiment the signal is provided with a space which is indicative of a particular point in each revolution. A modifier is controlled by a switch which alternates between one of two positions, and which modifies the space in one of the two positions. In another embodiment at least a portion of the signal is inverted between the two revolutions. In yet another embodiment, the pulse width of at least a portion of the signal is changed between the two revolutions.