公开(公告)号：US11015548B2

公开(公告)日：2021-05-25

申请号：US16772096

申请日：2017-12-14

Applicant: Cummins Inc.

Inventor： David M. Carey ,  Syed Shah Jalal ,  Richard J. Dudek ,  Ulf Carlsson ,  Paul Peavler

IPC: F02D41/38 ,  F02D41/20 ,  F02D41/00

Abstract: Methods and systems, using a controller (20), for performing fuel pressure control operation of an engine (12) having at least one cylinder (16) is disclosed. The controller (20) includes a fuel system control unit (42) configured to control a fuel pressure applied to at least one injector (18) of the engine (12) during a motoring condition period (412) based on a commanded pulse train duration (410). During the motoring condition period (412), no combustion occurs in the at least one cylinder (16) of the engine (12). The commanded pulse train duration is a time period during which the at least one injector (18) of the engine (12) is activated for a drain operation. The fuel system control unit (42) is configured to command the at least one injector (18), for the commanded pulse train duration during the motoring condition period (412), to release fuel from the at least one injector (18) without injecting the fuel into the at least one cylinder (16) of the engine (12).

公开(公告)号：US10041430B2

公开(公告)日：2018-08-07

申请号：US15022086

申请日：2014-09-16

Applicant: CUMMINS INC.

Inventor： Jalal Syed ,  Ulf Carlsson ,  Rodney J. Hemmerlein ,  Douglas W. Memering

IPC: F02D41/26 ,  F02D41/20 ,  F02D41/38 ,  F02M63/02

Abstract: The present disclosure provides a system for adjusting a fuel injector drive signal during a fuel injection event wherein the system comprises an engine having a fuel injector, a fuel control module configured to generate control signals corresponding to a desired fueling profile of a fuel injection event, and a fueling profile interface module that outputs drive profile signals to the fuel injector in response to the control signals to cause the fuel injector to deliver an actual fueling profile, wherein the fueling profile interface module changes the drive profile signals during the fuel injection event in response to a parameter signal indicating a characteristic of the actual fueling profile.

公开(公告)号：US20210340931A1

公开(公告)日：2021-11-04

申请号：US17328790

申请日：2021-05-24

Applicant: Cummins Inc.

Inventor： David M. Carey ,  Syed Shah Jalal ,  Richard J. Dudek ,  Ulf Carlsson ,  Paul Peavler

IPC: F02D41/38 ,  F02D41/00 ,  F02D41/20

Abstract: Methods and systems, using a controller (20), for performing fuel pressure control operation of an engine (12) having at least one cylinder (16) is disclosed. The controller (20) includes a fuel system control unit (42) configured to control a fuel pressure applied to at least one injector (18) of the engine (12) during a motoring condition period (412) based on a commanded pulse train duration (410). During the motoring condition period (412), no combustion occurs in the at least one cylinder (16) of the engine (12). The commanded pulse train duration is a time period during which the at least one injector (18) of the engine (12) is activated for a drain operation. The fuel system control unit (42) is configured to command the at least one injector (18), for the commanded pulse train duration during the motoring condition period (412), to release fuel from the at least one injector (18) without injecting the fuel into the at least one cylinder (16) of the engine (12).

公开(公告)号：US20210071612A1

公开(公告)日：2021-03-11

申请号：US16772096

申请日：2017-12-14

Applicant: Cummins Inc.

Inventor： David Michael Carey ,  Jalal Syed ,  Richard J. Dudek ,  Ulf Carlsson

IPC: F02D41/38 ,  F02D41/00 ,  F02D41/20

Abstract: Methods and systems, using a controller (20), for performing fuel pressure control operation of an engine (12) having at least one cylinder (16) is disclosed. The controller (20) includes a fuel system control unit (42) configured to control a fuel pressure applied to at least one injector (18) of the engine (12) during a motoring condition period (412) based on a commanded pulse train duration (410). During the motoring condition period (412), no combustion occurs in the at least one cylinder (16) of the engine (12). The commanded pulse train duration is a time period during which the at least one injector (18) of the engine (12) is activated for a drain operation. The fuel system control unit (42) is configured to command the at least one injector (18), for the commanded pulse train duration during the motoring condition period (412), to release fuel from the at least one injector (18) without injecting the fuel into the at least one cylinder (16) of the engine (12).

公开(公告)号：US20160222905A1

公开(公告)日：2016-08-04

申请号：US15022086

申请日：2014-09-16

Applicant: CUMMINS INC.

Inventor： Jalal Syed ,  Ulf Carlsson ,  Rodney J. Hemmerlein ,  Douglas W. Memering

IPC: F02D41/26

CPC classification number: F02D41/263 ,  F02D41/20 ,  F02D41/3863 ,  F02D2041/2048 ,  F02D2041/2051 ,  F02D2041/2058 ,  F02D2200/0602 ,  F02D2200/063 ,  F02M63/0225

Abstract: The present disclosure provides a system for adjusting a fuel injector drive signal during a fuel injection event wherein the system comprises an engine having a fuel injector, a fuel control module configured to generate control signals corresponding to a desired fueling profile of a fuel injection event, and a fueling profile interface module that outputs drive profile signals to the fuel injector in response to the control signals to cause the fuel injector to deliver an actual fueling profile, wherein the fueling profile interface module changes the drive profile signals during the fuel injection event in response to a parameter signal indicating a characteristic of the actual fueling profile.

Abstract translation: 本公开提供了一种用于在燃料喷射事件期间调节燃料喷射器驱动信号的系统，其中系统包括具有燃料喷射器的发动机，燃料控制模块被配置为产生对应于燃料喷射事件的期望加燃料轮廓的控制信号， 以及燃料轮廓接口模块，其响应于所述控制信号将驱动轮廓信号输出到所述燃料喷射器，以使得所述燃料喷射器输送实际的燃料轮廓，其中所述燃料轮廓界面模块在所述燃料喷射事件期间改变所述驱动轮廓信号 响应于指示实际加油轮廓的特性的参数信号。