公开(公告)号：US20090077955A1

公开(公告)日：2009-03-26

申请号：US12212438

申请日：2008-09-17

申请人： JENS REINHOLD ,  MARC CHAINEUX

发明人： JENS REINHOLD ,  MARC CHAINEUX

IPC分类号： F01N3/20 ,  F01N9/00

CPC分类号： F01N9/00 ,  F01N3/18 ,  F01N2550/02 ,  F01N2610/02 ,  Y02T10/47

摘要： A method for operating an electromagnetically actuated metering valve, which is loaded with a pulse-width modulated metering signal, which stipulates the dosage of a reagent or a precursor of the reagent introduced into the exhaust gas region of an internal combustion engine and an apparatus for implementing the method are proposed. A clock signal is provided, whose cycle duration is smaller than the cycle duration of the pulse-width modulated metering signal. The cycle duration of the pulse-width modulated metering signal is set as a function of a metering request signal to multiples of the cycle durations of the clock signal. The procedural approach according to the invention allows for a rapid adaptation of the dosage to the metering demands.

摘要翻译： 一种用于操作电磁致动计量阀的方法，其装载有脉宽调制计量信号，其规定了引入内燃机的排气区域的试剂或前体的剂量，以及用于 提出了实现方法。 提供了一个时钟信号，其周期持续时间小于脉冲宽度调制计量信号的周期持续时间。 脉冲宽度调制计量信号的周期持续时间被设置为计时请求信号的函数与时钟信号的周期持续时间的倍数。 根据本发明的程序方法允许将剂量快速适应计量需求。