公开(公告)号：US09010303B2

公开(公告)日：2015-04-21

申请号：US13361708

申请日：2012-01-30

申请人： Paul Moonjelly ,  Richard A. Booth ,  Lester L. Peters ,  Jeffrey C. Huang ,  Phanindra V. Garimella

发明人： Paul Moonjelly ,  Richard A. Booth ,  Lester L. Peters ,  Jeffrey C. Huang ,  Phanindra V. Garimella

IPC分类号： B60T7/12 ,  G05D1/00 ,  G06F7/00 ,  G06F17/00 ,  F02D35/02 ,  F02D41/00 ,  F02D41/22 ,  F02D41/40 ,  F02D41/14

CPC分类号： F02D41/401 ,  F02D35/023 ,  F02D35/028 ,  F02D41/0085 ,  F02D41/009 ,  F02D41/1439 ,  F02D41/22 ,  F02D41/221 ,  F02D41/3809 ,  F02D2041/1432 ,  F02D2041/224 ,  F02D2041/389 ,  F02D2200/0618 ,  Y02T10/44

摘要： This disclosure provides system and method that can determine hydraulic start of injection (SOI) in engines using an in-cylinder pressure sensor. The system and method determine apparent heat release rate (AHRR) curve data for the cylinder from the pressure information provided by the in-cylinder pressure sensors, and the hydraulic SOI from the derivative of the AHRR curve data. The system and method provide diagnostic, control and/or compensation opportunities for fuel injector operation in high pressure fuel rail engine systems without use of expensive or complex fuel injector components.

摘要翻译： 本公开提供了可以使用缸内压力传感器确定发动机中的液压启动（SOI）的系统和方法。 该系统和方法根据缸内压力传感器提供的压力信息和AHRR曲线数据导数的液压SOI确定气缸的表观放热率（AHRR）曲线数据。 该系统和方法为高压燃料轨道发动机系统中的燃料喷射器操作提供诊断，控制和/或补偿机会，而不使用昂贵或复杂的燃料喷射器部件。

公开(公告)号：US20190226420A1

公开(公告)日：2019-07-25

申请号：US15578924

申请日：2017-06-02

申请人： Phanindra V. GARIMELLA ,  John L. HOEHNE ,  Ian W. MCGIFFEN ,  Chandan MAHATO ,  Boopathi Singalandapuram MAHADEVAN ,  Pagalavan Mathari BAKTHAVATSALAM ,  Travis Alva ANDERSON ,  CUMMINS INC.

发明人： Phanindra V. Garimella ,  John L. Hoehne ,  Ian W. McGiffen ,  Chandan Mahato ,  Boopathi Singalandapuram Mahadevan ,  Pagalavan Mathari Bakthavatsalam ,  Travis Alva Anderson

IPC分类号： F02D41/40 ,  F02D41/14 ,  F02D41/02 ,  F02D41/04 ,  F02D41/00 ,  F02D41/38

摘要： A method of controlling a fuel injector comprises measuring a pressure in a cylinder of an engine with a pressure sensor and determining at least one of a crank angle and a crank speed with a crank sensor. The method also comprises calculating a net indicated mean effective pressure of the cylinder from the measured value of the pressure sensor and the determined value of the crank sensor. Also, the method comprises adjusting a fueling parameter of a fuel injector for the cylinder in response to the difference between the calculated net indicated mean effective pressure and a reference mean effective pressure indicates a change in power of the engine. Alternatively, the method may adjust the fueling parameter based on a power feedback signal for the engine.