公开(公告)号：US20240052796A1

公开(公告)日：2024-02-15

申请号：US18232038

申请日：2023-08-09

Applicant: Cummins Inc.

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

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

CPC classification number: F02D41/0235 ,  F01N3/106 ,  F01N3/2066 ,  F01N11/005 ,  F02D2200/702 ,  F02D2200/0802

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 engine operational data, the engine operational data indicative of at least one engine operational condition; determine, based on the engine operational data, an estimated exhaust temperature; generate, based on the estimated exhaust temperature and a finite time horizon, a forecasted exhaust temperature; correct the forecasted exhaust temperature based on a downpipe model to generate a first inlet temperature profile corresponding to a first component of the exhaust aftertreatment system; and generate, based on the first inlet temperature profile, a second inlet temperature profile corresponding to a second component of the exhaust aftertreatment system.

公开(公告)号：US11894709B2

公开(公告)日：2024-02-06

申请号：US17591031

申请日：2022-02-02

Applicant: CUMMINS INC.

Inventor： Archit Koti

IPC: B60L50/72 ,  B60L58/33 ,  H01M8/0432 ,  H01M8/04858 ,  H01M8/04992 ,  H02J7/00 ,  H01M8/12

CPC classification number: H02J7/005 ,  H01M8/04932 ,  H02J7/007 ,  H02J7/0013 ,  H02J7/00032 ,  H01M2008/1293 ,  H01M2250/20 ,  H02J2300/30

Abstract: The present disclosure relates to a method and system for determining, applying, and/or managing the state-of-health of fuel cell to control the lifespan of the fuel cell in a vehicle and/or powertrain.

公开(公告)号：US11892482B2

公开(公告)日：2024-02-06

申请号：US17951720

申请日：2022-09-23

Applicant: Cummins Inc.

Inventor： Martin T. Books ,  Craig M. Calmer ,  Robert Dziuba ,  Mahesh Madurai-Kumar ,  Praveen Chitradurga Muralidhar ,  John P. O'Brien ,  Joseph E. Paquette ,  Gary L. Parker ,  Anthony K. Perfetto ,  Jeffrey S. Rauch ,  Zachary Schwab ,  Jon S. Wardlow

IPC: G01R19/00 ,  B60R16/03

CPC classification number: G01R19/0092 ,  B60R16/03

Abstract: A method includes determining, by a controller, a presence of an available electrical energy quantity generated from an energy generation event; comparing, by the controller, the available electrical energy quantity to an available energy capacity of a battery storage system; and responsive to determining the available electrical energy quantity exceeds the available energy capacity of the battery storage system, causing, by the controller, a transmission of at least a portion of the available energy quantity to a heat management system.

公开(公告)号：US20240026808A1

公开(公告)日：2024-01-25

申请号：US18266192

申请日：2021-12-08

Applicant: Cummins Inc.

Inventor： Kristopher R. Bare ,  Michael J. Cunningham ,  Jennifer Kay Light-Holets ,  Xiaobo Song ,  Agneya Turlapati

IPC: F01N3/20 ,  F01N9/00 ,  F01N11/00

CPC classification number: F01N3/208 ,  F01N9/007 ,  F01N11/00 ,  F01N2250/02 ,  F01N2560/026 ,  F01N2900/08 ,  F01N2900/1411 ,  F01N2610/02 ,  F01N2900/0412

Abstract: A system includes an exhaust aftertreatment system coupled to an engine, and a controller including at least one processor coupled to at least one memory device storing instructions that, when executed by the at least one processor, cause the controller to perform certain operations. The operations include estimating an aging of the exhaust aftertreatment system, and adjusting at least one of an entry temperature threshold or an exit temperature threshold for a thermal management mode for the exhaust aftertreatment system based on the aging of the exhaust aftertreatment system.

公开(公告)号：US11878692B2

公开(公告)日：2024-01-23

申请号：US18105009

申请日：2023-02-02

Applicant: Cummins Inc.

Inventor： Martin T. Books ,  Joseph E. Paquette

IPC: B60W30/18 ,  B60L7/18 ,  B60T1/06 ,  B60W10/08 ,  B60W10/196 ,  B60L50/60 ,  B60L50/40 ,  B60K6/20 ,  B60L7/26

CPC classification number: B60W30/18127 ,  B60L7/18 ,  B60T1/062 ,  B60W10/08 ,  B60W10/196 ,  B60K6/20 ,  B60L7/26 ,  B60L50/40 ,  B60L50/60 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2250/28 ,  B60T2270/604 ,  B60W2510/081 ,  B60W2540/10 ,  B60W2710/08 ,  B60W2710/083 ,  B60Y2200/92

Abstract: A method is provided for scheduling regenerative braking torque, comprising: sensing a position of an accelerator pedal; generating a torque request value in response to the sensed accelerator pedal position; determining a speed of operation of a motor/generator; determining a torque limit in response to the torque request value and the determined speed of the motor/generator; generating a regenerative braking command in response to the torque limit; and outputting the regenerative braking command to the motor/generator.

公开(公告)号：US20240011481A1

公开(公告)日：2024-01-11

申请号：US17785865

申请日：2020-12-14

Applicant: Cummins Inc.

Inventor： Amol Yashwant Alsundkar ,  Senthil Kumar Selvaraj ,  Nitin Khojare ,  Rashmi Prakash Keskar ,  Jayesh Mahadev Gudekar

IPC: F04C2/10 ,  F04C15/06 ,  F04C18/10

CPC classification number: F04C2/101 ,  F04C2/10 ,  F04C15/06 ,  F04C18/103

Abstract: A crescent member is disclosed which is configured to be in constant contact with outer and inner gear teeth to prevent unwanted fluid backflow between the gears. The crescent member may be part of a low-pressure fuel pump system for a diesel engine. In order to reduce heat buildup in the crescent member and gear teeth, the crescent member comprises a gap to allow fluid to flow within the crescent member to absorb and dissipate the heat generated by friction. The crescent member is resilient to maintain constant contact, but flexible enough to reduce wear from friction over time.

公开(公告)号：US20240011451A1

公开(公告)日：2024-01-11

申请号：US18265154

申请日：2021-12-03

Applicant: Cummins Inc.

Inventor： Robert G. Sperry

IPC: F02F3/22 ,  F02F3/28

CPC classification number: F02F3/22 ,  F02F3/28

Abstract: A piston can include a skirt, a crown, and a cooling gallery. The skirt can have an upper body portion. The crown can be formed at the upper body portion. A wall can be formed underneath the crown so as to define a cooling gallery within the piston. The cooling gallery includes cooling gallery peripheral portion and a cooling gallery central portion. The cooling gallery can be configured to receive and to retain an amount of cooling fluid and to cause movement thereof within the cooling gallery between a cooling gallery peripheral portion and a cooling gallery central portion as the piston travels between top dead center and bottom dead center so as to cool both the piston outer region and the piston center region.

公开(公告)号：US11862779B2

公开(公告)日：2024-01-02

申请号：US17224523

申请日：2021-04-07

Applicant: Cummins Inc.

Inventor： Timothy C. Ernst ,  Jonathan A. Dickson ,  Manik Narula

IPC: H01M10/66 ,  H01M10/613 ,  H01M10/625 ,  H01M10/635 ,  H01M10/6568 ,  B60L58/26 ,  B60H1/00 ,  H05K7/20

CPC classification number: H01M10/66 ,  B60H1/00278 ,  B60H1/00392 ,  B60L58/26 ,  H01M10/613 ,  H01M10/625 ,  H01M10/635 ,  H01M10/6568 ,  H05K7/20263 ,  H05K7/20272 ,  H05K7/20927 ,  H01M2220/20

Abstract: A cooling system for an electrified vehicle includes a first cooling loop for circulating coolant for cooling at least one of power electronics and a motor/generator of the vehicle. The first coolant loop includes a heat exchanger for exchanging heat with the coolant in the first cooling loop. A second cooling loop is provided for circulating coolant for cooling a battery of the vehicle. The second cooling loop includes a coolant chiller connected to a refrigeration system of the vehicle for exchanging heat in the coolant received from the battery with the refrigeration system of the vehicle.

公开(公告)号：US20230420780A1

公开(公告)日：2023-12-28

申请号：US18210361

申请日：2023-06-15

Applicant: Cummins Inc.

Inventor： Jacob Ensign

IPC: H01M50/242 ,  H01M10/04 ,  H01M10/6556 ,  H01M10/658

CPC classification number: H01M50/242 ,  H01M10/0481 ,  H01M10/6556 ,  H01M10/658

Abstract: An expansion panel for installation against a battery cell in a battery assembly is disclosed. The expansion panel comprises two plates, wherein at least one plate is arranged to face the battery cell, and a spring layer between the two plates. The expansion panel may be able to provide pressure to the battery cell, while at the same time helping with cell cooling. The expansion panel may also provide a flame barrier, which may offer thermal runaway protection.

公开(公告)号：US20230412102A1

公开(公告)日：2023-12-21

申请号：US18239915

申请日：2023-08-30

Applicant: Cummins Inc.

Inventor： Akm Arafat ,  Bradford K. Palmer ,  Dakshina S. Murthy-Bellur

IPC: H02P21/00 ,  H02P25/22 ,  H02P29/028

CPC classification number: H02P21/50 ,  H02P29/028 ,  H02P25/22

Abstract: A method of controlling a multi-phase electric machine includes implementing a first control method to control the operation of a six-phase machine that is configured as a combination of two three-phase machines. The method also includes determining whether a fault exists in the six-phase machine. In response to determining that the fault exists in the six-phase machine, the method includes implementing a second and different control method to control the operation of the six-phase machine.