公开(公告)号：US11725604B2

公开(公告)日：2023-08-15

申请号：US17630466

申请日：2019-08-02

Applicant: Cummins Inc.

Inventor： Paul Peavler ,  Donald J. Benson ,  David Michael Carey ,  Timothy J. Viola

IPC: F02D41/22 ,  F02D41/38

CPC classification number: F02D41/22 ,  F02D41/3836 ,  F02D41/3845 ,  F02D2041/225 ,  F02D2200/0602

Abstract: The present disclosure relates to a method for controlling pressure of an engine, including a controller structured to implement the method and an engine system including the controller. More specifically, the present disclosure relates to a method based on a mass balance analysis of a fuel system to determine how much mass needs to be pumped to maintain or achieve a certain pressure for the engine. In some embodiments, the method analyzes how much mass can be pumped by each pumping event based on current engine conditions. The analysis is performed over the smallest repeatable pump events and cylinder events cycle, or “subcycle,” based on the number of pump events and cylinder events for a given engine configuration.

公开(公告)号：US20250154922A1

公开(公告)日：2025-05-15

申请号：US18926652

申请日：2024-10-25

Applicant: Cummins Inc.

Inventor： Michael R. Tidwell ,  Nahom Abebe Wondimu ,  Karthik Sethuraman ,  Joao Paulo da Silva ,  Aditya Vidyadhar Bhagwat ,  Timothy J. Viola

IPC: F02M21/02 ,  F02M43/04

Abstract: An engine system includes a gaseous fuel injection system including a plurality of gaseous fuel injectors configured to inject gaseous fuel for combustion in a plurality of cylinders and an electronic control system operatively coupled with the gaseous fuel injection system. The electronic control system is configured to determine whether to perform a break loose operation of the plurality of injectors, energize each of the plurality of gaseous fuel injectors with multiple voltage pulses in response to a determination to perform the break loose operation, and after the energization commence ignition to rotate the engine.

公开(公告)号：US20220252018A1

公开(公告)日：2022-08-11

申请号：US17630466

申请日：2019-08-02

Applicant: Cummins Inc.

Inventor： Paul Peavler ,  Donald J. Benson ,  David Michael Carey ,  Timothy J. Viola

IPC: F02D41/22 ,  F02D41/38

Abstract: The present disclosure relates to a method for controlling pressure of an engine, including a controller structured to implement the method and an engine system including the controller. More specifically, the present disclosure relates to a method based on a mass balance analysis of a fuel system to determine how much mass needs to be pumped to maintain or achieve a certain pressure for the engine. In some embodiments, the method analyzes how much mass can be pumped by each pumping event based on current engine conditions. The analysis is performed over the smallest repeatable pump events and cylinder events cycle, or “subcycle,” based on the number of pump events and cylinder events for a given engine configuration.