公开(公告)号：US20160208724A1

公开(公告)日：2016-07-21

申请号：US14994535

申请日：2016-01-13

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Massimiliano MELIS ,  Francesco PESCE ,  Gennaro MERLINO ,  Lucio POSTRIOTI

IPC: F02D41/20

CPC classification number: F02D41/20 ,  F02D2041/2013

Abstract: A method and apparatus for energizing a solenoidal fuel injector for an internal combustion engine is disclosed. The fuel injector is electrically connected to a battery capable of providing a battery voltage and to a boost converter capable of providing a boost voltage that is higher than the battery voltage. The boost voltage is applied to a solenoid of the fuel injector to perform a first opening phase of the injector, the energy from the solenoid of the fuel injector is then discharged. A second opening phase of the fuel injector is performed, and followed by a hold phase using the battery voltage (Vbatt). Lastly, a closing phase of the fuel injector is performed.

Abstract translation: 公开了一种用于激励用于内燃机的螺线管燃料喷射器的方法和装置。 燃料喷射器电连接到能够提供电池电压的电池和能够提供高于电池电压的升压电压的升压转换器。 升压电压被施加到燃料喷射器的螺线管上，以执行喷射器的第一打开阶段，然后排出来自燃料喷射器的螺线管的能量。 执行燃料喷射器的第二打开阶段，然后使用电池电压（Vbatt）进行保持阶段。 最后，执行燃料喷射器的关闭阶段。

公开(公告)号：US20150260136A1

公开(公告)日：2015-09-17

申请号：US14658730

申请日：2015-03-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Massimiliano MELIS ,  Francesco PESCE ,  Lucio POSTRIOTI

IPC: F02M51/06 ,  F02D41/30

CPC classification number: F02D41/20 ,  F02D41/3011 ,  F02D41/402 ,  F02D2041/389 ,  F02D2200/0602 ,  F02D2200/0614

Abstract: A method and system for operating a fuel injector of an internal combustion engine is disclosed in which the fuel injector is driven by an energizing current profile for an energizing time interval. An energizing current profile is selected for each fuel injection in a fuel injection system from among a plurality of predetermined energizing current profiles based on a function of an engine combustion mode. For each selected energizing current profile, a corresponding energizing time is determined as a function of a common rail pressure value and a fuel quantity value.

Abstract translation: 公开了一种用于操作内燃机的燃料喷射器的方法和系统，其中燃料喷射器由激励电流分布驱动以产生激励时间间隔。 基于发动机燃烧模式的功能，从多个预定的通电轮廓中的燃料喷射系统中的每个燃料喷射选择激励电流分布。 对于每个选择的通电电流分布，根据共轨压力值和燃料量值确定相应的通电时间。