公开(公告)号：US12191758B2

公开(公告)日：2025-01-07

申请号：US18026427

申请日：2021-09-08

Applicant: Cummins Inc.

Inventor： Akm Arafat ,  Moinul S. Haque ,  Bradford K. Palmer ,  Patrick Kaufman

IPC: H02P21/22 ,  B60L50/60 ,  H02M1/32 ,  H02M7/5387 ,  B60K6/40

Abstract: An inverter system is provided such that the system includes a direct-current (DC) voltage supply, an inverter, an electric machine such as a motor, and a controller coupled with the inverter. The inverter has four or more legs, each with two switches operating complementary to each other. The controller can determine which three of the four or more legs are selected to operate the inverter and uses a remaining one of the four or more legs to operate the inverter by activating/deactivating certain switches during null vector state.

公开(公告)号：US20240425069A1

公开(公告)日：2024-12-26

申请号：US18707806

申请日：2022-10-19

Applicant: Cummins Inc.

Inventor： Abhishek Khunte ,  Sujay Sirur

IPC: B60W50/10 ,  B60K28/10

Abstract: A system and method for avoiding unintended acceleration is provided and includes a first integrated circuit-based electronic controller configured to receive acceleration and brake requests and provide a control output via a datalink dedicated to controlling a prime mover system of the vehicle, a three-axis accelerometer configured to provide acceleration outputs indicative of acceleration of the accelerometer relative to three dimensions, and a second integrated circuit-based electronic controller operative independently of the first integrated circuit-based controller configured to receive the acceleration and braking requests, receive the acceleration outputs of the three-axis accelerometer, and operatively coupled with the datalink. The second integrated circuit-based electronic controller is configured to determine an unintended acceleration event in response to the acceleration and braking requests, and the acceleration outputs of the three-axis accelerometer.

公开(公告)号：US12163449B2

公开(公告)日：2024-12-10

申请号：US18212657

申请日：2023-06-21

Applicant: Cummins Inc.

Inventor： Nathaniel P. Hassall ,  John Jerl Purcell, III ,  Stephen D. Cofer, Jr. ,  David M. Barnes ,  Aaron S. Quinton ,  Reid M. Irish

IPC: F01M1/02 ,  F01M1/00 ,  F01M1/08 ,  F01M1/10 ,  F01M5/00 ,  F01M11/00 ,  F01M11/02

Abstract: The present disclosure provides a lubrication system comprising: a pump having an inlet in fluid communication with a lubricant source and an outlet; a cooler having an inlet in fluid communication with the outlet of the pump and an outlet; a lubrication filter having an inlet in fluid communication with the outlet of the cooler and an outlet; a first delivery path in fluid communication with the outlet of the lubrication filter, the first delivery path being configured to deliver cooled, filtered lubricant to a bearing system of an engine; and a second delivery path in fluid communication with the outlet of the pump, the second delivery path being configured to deliver uncooled, unfiltered lubricant to piston cooling nozzles of the engine.

公开(公告)号：US12157369B2

公开(公告)日：2024-12-03

申请号：US17175104

申请日：2021-02-12

Applicant: CUMMINS INC.

Inventor： Dixon Malcolm Correa

IPC: B60K6/387 ,  B60K6/48 ,  B60K6/547 ,  B60K25/06 ,  B60L7/10 ,  B60L50/15 ,  B60W20/11

Abstract: An energy recovery drive system includes a motor-generator that is structured to selectively operate in a motor mode and a generator mode. A first shaft is operatively coupled to a transmission power take-off shaft. A second shaft is operatively coupled to the motor-generator and to an alternative power source. The energy recovery drive system is controllably operated in a plurality of operating modes. In a first operating mode, the motor-generator is in torque providing engagement with each of the first and second shafts. In a second operating mode, the motor-generator is in torque communicating engagement with each of the first and second shafts. In a third operating mode, which the motor-generator is in torque communicating engagement with the second shaft and is disengaged from transferring torque to the first shaft and from receiving torque from the first shaft.

公开(公告)号：US12152670B2

公开(公告)日：2024-11-26

申请号：US17661189

申请日：2022-04-28

Applicant: Cummins Inc.

Inventor： Steven M. Bellinger

IPC: F16H61/688 ,  F16H61/04

Abstract: A system, method and apparatus are disclosed for a clutch assembly for an automated manual transmission. The clutch assembly includes a dual power path. One power path connects a prime mover to the automated manual transmission via a wet clutch, and a second power path connects one of the prime mover and the automated manual transmission to a grounded connection for synchronizing the speed thereof for a gear change.

公开(公告)号：US12148508B2

公开(公告)日：2024-11-19

申请号：US17664700

申请日：2022-05-24

Applicant: Cummins Inc.

Inventor： Ryan E. Denton ,  Xinjian Xue ,  Corey W. Trobaugh ,  Anthony Joseph Huth

IPC: G16B40/20 ,  G06F18/214 ,  G06N5/01 ,  G06N5/04

Abstract: A method includes inputting used oil analysis data to a pre-trained predictive model, the used oil analysis data including values quantifying a plurality of chemical components measured in a sample of used oil taken from an engine under analysis, determining a probability of at least one fail code with the pre-trained predictive model in response to the used oil analysis data, the at least one fail code corresponding to one of a plurality of predetermined engine failure types, providing the at least one fail code and the probability of the at least one fail code to an expert system, performing with the expert system a root cause analysis of the at least one fail code determine a root cause indicating a preventative maintenance action, and performing the predictive maintenance action on the engine under analysis.

公开(公告)号：US12146451B2

公开(公告)日：2024-11-19

申请号：US18513778

申请日：2023-11-20

Applicant: Cummins Inc.

Inventor： David Michael Carey ,  Sanjay Manglam

IPC: F02D41/40 ,  F02D41/20 ,  F02D41/38 ,  F02M65/00 ,  F02D41/22

Abstract: Various embodiments of the present disclosure relate to methods and systems for measuring an injected fuel quantity during multipulse injection events in a common rail of a fuel system including a fuel pump to supply fuel to the common rail. The method, using a control unit, determines if each of the multipulse injection events in a normal operating condition includes a pilot pulse; in response to determining that the pilot pulse is included, obtaining an enforced separation value between the pilot pulse and the main pulse to emulate a single-pulse injection; while the fuel pump is temporarily shut off, performing a temporary enforced separation on a fraction of the multipulse injection events; measuring a pressure change in the common rail during the temporary enforced separation; and resuming the normal operating condition of the multipulse injection events after the pressure change is measured.

公开(公告)号：US20240367655A1

公开(公告)日：2024-11-07

申请号：US18642620

申请日：2024-04-22

Applicant: Transportation IP Holdings, LLC ,  Komatsu America Corp. ,  Cummins Inc.

Inventor： Henry Todd Young ,  Rekha Doddarangaiah Prasad ,  Timothy Brown ,  David John Scott ,  Timothy Robert Heller ,  Phanindra Garimella

IPC: B60W30/188 ,  B60W10/06

Abstract: A vehicle control system determines that a vehicle is not fully loaded with a payload, determines an upper limit on engine propulsion power for the vehicle that is not fully loaded with the payload, and reduces an engine speed of the vehicle to a determined speed at which a power capability of an engine of the vehicle matches the upper limit on the engine propulsion power of the vehicle.

公开(公告)号：US20240356319A1

公开(公告)日：2024-10-24

申请号：US18600154

申请日：2024-03-08

Applicant: Cummins Inc.

Inventor： William Brent Fields ,  Joshua D. Greeno ,  Ryan A. Green ,  James Anthony Stumpf ,  John P. O'Brien ,  Rishvanth Kora Venugopal

IPC: H02G3/08 ,  H02G3/14

CPC classification number: H02G3/086 ,  H02G3/083 ,  H02G3/14

Abstract: A high-voltage junction box module includes: a housing; a plurality of electrical ports disposed at the first side of the housing; a plurality of buses contained within the housing and operatively controlling electrical flow and electrical connection between auxiliary electronic devices that are electrically coupled with the junction box module via the electrical ports; and at least one interface having one or more coupling sections disposed at one or more of the second side, the third side, the fourth side, the first section, or the second section of the housing. The interface physically and electrically couples the junction box module directly with an additional junction box module.

公开(公告)号：US20240337225A1

公开(公告)日：2024-10-10

申请号：US18747323

申请日：2024-06-18

Applicant: Cummins Inc.

Inventor： Thomas R. Nelson ,  Jeffrey Diwakar Abraham ,  Siddharth Raj Gupta

IPC: F02D41/02 ,  F01N3/10 ,  F01N3/20 ,  F01N9/00 ,  F01N11/00 ,  F02D41/14

CPC classification number: F02D41/0235 ,  F01N3/106 ,  F01N3/2066 ,  F01N11/005 ,  F01N9/005 ,  F01N9/007 ,  F01N11/002 ,  F01N2900/04 ,  F01N2900/0406 ,  F01N2900/0412 ,  F01N2900/0421 ,  F01N2900/0422 ,  F01N2900/1404 ,  F01N2900/1626 ,  F02D2041/1411 ,  F02D2041/1412 ,  F02D41/1446 ,  F02D41/1447 ,  F02D2200/0802 ,  F02D2200/702

Abstract: A system includes a processing circuit having a memory coupled to one or more processors, the memory storing instructions therein that, when executed by the one or more processors, cause the one or more processors to: receive an estimated exhaust temperature; generate, based on the estimated exhaust temperature, a forecasted exhaust temperature; modify the forecasted exhaust temperature based on a downpipe model to generate a first temperature profile corresponding to a first component of an exhaust aftertreatment system; and generate, based on the first temperature profile, a second temperature profile corresponding to a second component of the exhaust aftertreatment system.