公开(公告)号：US20170058815A1

公开(公告)日：2017-03-02

申请号：US14997907

申请日：2016-01-18

Applicant: Infineon Technologies AG

Inventor： Seng Hung Tervin Tan ,  Jin Seo Park ,  Patrick Leteinturier

IPC: F02D41/30 ,  F02D41/20

CPC classification number: F02D41/20 ,  F02D41/34 ,  F02D41/345 ,  F02D2041/2055 ,  F02D2041/2058 ,  Y02T10/44

Abstract: A fuel injection system for an internal combustion engine includes a fuel injector and an engine control system. The engine control system is configured to send electrical fuel injection signals to the fuel injector to open the fuel injector, monitor a current amplitude of electrical fuel injection signals, detect the mechanical openings of the fuel injector based on the monitored current amplitudes of electrical fuel injection signals according to inflection points between a decreasing slope and an increasing slope in the monitored current amplitudes of electrical fuel injection signals, calculate time delays between the sent electrical fuel injection signals and the mechanical openings of the fuel injector, and set durations of electrical fuel injection signals based on the calculated time delays.

Abstract translation: 用于内燃机的燃料喷射系统包括燃料喷射器和发动机控制系统。 发动机控制系统被配置为向燃料喷射器发送电燃料喷射信号以打开燃料喷射器，监测电燃料喷射信号的当前幅度，基于监测到的电燃料喷射的电流幅度来检测燃料喷射器的机械开口 根据监测到的电燃料喷射信号的电流幅度在减小的斜率和增加的斜率之间的拐点处的信号，计算所发送的电燃料喷射信号和燃料喷射器的机械开口之间的时间延迟，以及设定燃料喷射持续时间 基于计算出的时间延迟的信号。

公开(公告)号：US10087866B2

公开(公告)日：2018-10-02

申请号：US14997907

申请日：2016-01-18

Applicant: Infineon Technologies AG

Inventor： Seng Hung Tervin Tan ,  Jin Seo Park ,  Patrick Leteinturier

IPC: F02D41/20 ,  F02D41/34

Abstract: A fuel injection system for an internal combustion engine includes a fuel injector and an engine control system. The engine control system is configured to send electrical fuel injection signals to the fuel injector to open the fuel injector, monitor a current amplitude of electrical fuel injection signals, detect the mechanical openings of the fuel injector based on the monitored current amplitudes of electrical fuel injection signals according to inflection points between a decreasing slope and an increasing slope in the monitored current amplitudes of electrical fuel injection signals, calculate time delays between the sent electrical fuel injection signals and the mechanical openings of the fuel injector, and set durations of electrical fuel injection signals based on the calculated time delays.