公开(公告)号：US20230398974A1

公开(公告)日：2023-12-14

申请号：US18239610

申请日：2023-08-29

Applicant: Cummins Inc.

Inventor： David B. Snyder ,  Ming-Feng Hsieh

IPC: B60W10/06 ,  B60W10/08 ,  B60W10/02 ,  B60K6/48

CPC classification number: B60W10/06 ,  B60W10/08 ,  B60W10/026 ,  B60K6/48 ,  B60W2710/024 ,  B60W2510/0657

Abstract: The present disclosure provides a hybrid powertrain system, comprising: an engine; a motor/generator (“MG”); a clutch coupled to the engine and the MG; a transmission coupled to the MG; an energy storage system connected to the MG; and a controller coupled to the engine, the MG, the clutch, the transmission and the energy storage system. The controller is configured to initiate an engine stop, allow engine torque and MG torque to reduce to zero or near zero, shift the transmission to a neutral gear, cause the MG to operate in a generator mode, thereby loading the engine to recover kinetic energy from the engine, disengage the clutch to decouple the MG from the engine, increase the speed of the MG to a target speed, and shift the transmission into gear in response to the MG reaching the target speed.

公开(公告)号：US11840971B2

公开(公告)日：2023-12-12

申请号：US17822885

申请日：2022-08-29

Applicant: Cummins Inc.

Inventor： C. Larry Bruner ,  Phanindra V. Garimella ,  Geomy George ,  Timothy P. Lutz ,  J. Steven Kolhouse ,  Edmund P. Hodzen ,  Robert Charles Borregard ,  Mark A. Rosswurm ,  Axel Otto zur Loye

IPC: F02D19/08 ,  F02D41/22 ,  F02D19/06 ,  F02D35/02 ,  F02D19/10 ,  F02D41/00 ,  F02D41/14

CPC classification number: F02D19/081 ,  F02D19/0628 ,  F02D19/0647 ,  F02D19/10 ,  F02D19/105 ,  F02D35/027 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/1498 ,  F02D41/221 ,  F02D41/005 ,  F02D2041/228 ,  F02D2200/0611 ,  Y02T10/30 ,  Y02T10/40

Abstract: Systems, methods and apparatus for controlling operation of dual fuel engines are disclosed that regulate the fuelling amounts provided by a first fuel and a second fuel during operation of the engine. The first fuel can be a liquid fuel and the second fuel can be a gaseous fuel. The fuelling amounts are controlled to improve operational outcomes of the duel fuel engine.

公开(公告)号：US20230392529A1

公开(公告)日：2023-12-07

申请号：US18235212

申请日：2023-08-17

Applicant: Cummins Inc.

Inventor： Jinyong Luo ,  Xiaobo Song ,  Colin L. Norris ,  Xing Jin ,  Matthew L. Anderson ,  Ying Yuan

IPC: F01N3/20

CPC classification number: F01N3/2013 ,  F01N3/2066 ,  F01N2900/1602 ,  F01N2900/1404 ,  F01N2900/1411 ,  F01N2900/104

Abstract: The enclosed disclosure relates to vehicle systems in which an engine, a particulate filter fluidly coupled with the engine, a selective catalytic reduction (SCR) system fluidly coupled with the engine downstream of the particulate filter, an electrical heating device implemented with the particulate filter, and a controller operatively coupled with the engine and the electrical heating device, are implemented. The controller can detect, when the engine is turned off, a condition for turning on the engine, detect a temperature of the particulate filter of the SCR system, activate the electrical heating device in response to the detected temperature being below a lower temperature threshold, and turn on the engine in response to the detected temperature being at or above the lower temperature threshold.

公开(公告)号：US11833902B2

公开(公告)日：2023-12-05

申请号：US16976213

申请日：2019-02-27

Applicant: CUMMINS INC.

Inventor： Manik Narula ,  Timothy C. Ernst ,  Michael J. Ruth ,  Jonathan A. Dickson ,  J. Steven Kolhouse ,  Nimish Bagayatkar

IPC: B60K6/32 ,  B60K6/46 ,  F02G5/00

CPC classification number: B60K6/32 ,  B60K6/46 ,  F02G5/00

Abstract: A vehicle system includes an engine, a transmission, a differential, and a waste heat recovery (WHR) drive that converts thermal energy into mechanical and electrical energy. The WHR drive can include a WHR power unit structured to convert thermal energy into rotation of a WHR drive shaft. A motor/generator having a motor/generator shaft can selectively operate as a motor or a generator. A mechanical linkage is structured to selectively link an output shaft to one of the WHR drive shaft and the motor/generator drive shaft independently of the other of the WHR drive shaft and the motor/generator drive shaft. The output shaft is selectively coupled to one of the engine, the transmission, or the differential. The vehicle system may also include a traction motor to provide drive to the vehicle. The output shaft can be selectively coupled to the traction motor or the engine.

公开(公告)号：US11820359B2

公开(公告)日：2023-11-21

申请号：US17229438

申请日：2021-04-13

Applicant: CUMMINS INC.

Inventor： Manik Narula ,  Timothy C. Ernst ,  Michael J. Ruth ,  Jonathan A. Dickson ,  J. Steven Kolhouse ,  Nimish Bagayatkar

IPC: B60K1/00 ,  B60W20/14 ,  B60W30/18 ,  B60K6/44 ,  B60K6/26 ,  F01N5/04

CPC classification number: B60W20/14 ,  B60K6/26 ,  B60K6/44 ,  B60W30/18127 ,  F01N5/04

Abstract: A waste heat recovery (WHR) hybrid power system can be utilized in vehicles to convert heat energy into mechanical energy. The WHR system can include a WHR power unit structured to convert thermal energy into rotation of a WHR drive shaft. A motor/generator having a motor/generator shaft can selectively operate as a motor or a generator. A mechanical linkage can be structured to selectively link a output shaft to one of the WHR drive shaft and the motor/generator drive shaft independently of the other of the WHR drive shaft and the motor/generator drive shaft.

公开(公告)号：US11815044B1

公开(公告)日：2023-11-14

申请号：US17836715

申请日：2022-06-09

Applicant: Cummins Inc.

Inventor： Rutika Kaustubh Gokhale ,  Adrian Adolfo Jarrin ,  Arun Shori Sundaravel Damotharan

IPC: F02D41/22 ,  F02D41/14 ,  F01N11/00

CPC classification number: F02D41/222 ,  F01N11/00 ,  F02D41/1463 ,  F01N2550/05 ,  F01N2560/026 ,  F01N2900/1821 ,  F02D2200/08

Abstract: Systems and methods for diagnosing an exhaust aftertreatment system are provided. A controller determines, for each sensor of a plurality of sensors, one or more performance parameters based on measurement data obtained from the sensor that is indicative of a performance of the sensor or a component of the exhaust aftertreatment system. The controller determines, for each performance parameter, a corresponding degradation level indicator indicative of a performance degradation of the corresponding sensor or the corresponding component of the exhaust aftertreatment system. The controller can determine, for each degradation level indicator, a corresponding diagnosis threshold value for detecting an operational state of the corresponding sensor or the corresponding component of the exhaust aftertreatment system. The controller can determine a multipoint diagnosis threshold value based on the diagnosis threshold values, and determine an operational state of the aftertreatment system using the multipoint diagnosis threshold value.

公开(公告)号：US20230358299A1

公开(公告)日：2023-11-09

申请号：US18224435

申请日：2023-07-20

Applicant: Cummins Inc.

Inventor： James A. Dods ,  Michael J. Cooper ,  Paul A. Leggott ,  Graham Dowson

IPC: F16H7/06 ,  F16H55/30

CPC classification number: F16H7/06 ,  F16H55/30 ,  F01L1/022

Abstract: The present disclosure provides a captive sprocket system for an engine, comprising: a sprocket including a first sprocket gear, a second sprocket gear and a retaining disc having a diameter and a thickness; a cylinder block having a bore with a central opening and a plurality of threaded bosses, the plurality of threaded bosses together forming an axial support surface and a radial location surface, the axial support surface and the radial location surface being sized to receive the retaining disc of the sprocket to support and locate the sprocket; and a plurality of captivation screws configured to be received by the plurality of threaded bosses, each captivation screw having a head with a lower surface which, when the captivation screw is received by a threaded boss, overlies the retaining disc and retains the sprocket in the bore.

公开(公告)号：US11808181B2

公开(公告)日：2023-11-07

申请号：US17655209

申请日：2022-03-17

Applicant: Cummins Inc.

Inventor： Dixon Malcolm Correa

IPC: F01L13/06 ,  F01L1/18 ,  F01L1/24 ,  F01L1/26

CPC classification number: F01L13/065 ,  F01L1/181 ,  F01L1/2416 ,  F01L1/26 ,  F01L2001/2444 ,  F01L2760/004

Abstract: An exhaust valve opening apparatus such as for an engine compression braking system includes a rocker shaft for supplying control fluid to an controllable valve and for distributing the control fluid to a primary and second piston arrangement that selectively opens an exhaust valve in response to the control fluid being pressurized.

公开(公告)号：US11799271B2

公开(公告)日：2023-10-24

申请号：US17175813

申请日：2021-02-15

Applicant: Cummins Inc.

Inventor： David Guillermo Gonzalez Medina ,  William Marshall Cover ,  Xu Han ,  Andrew Guy Kitchen ,  Daniel J. O'Connor ,  Alan C. Anderson ,  Nicholas James Welch ,  Jisang Sun

IPC: H01T13/46 ,  H01T13/32

CPC classification number: H01T13/467 ,  H01T13/32

Abstract: Spark plugs are disclosed that include electrode arrangements to improve the charge flow into and out of the annular volume around the insulator nose and a pre-chamber volume of a pre-chamber device, thus directing a purge of exhaust gases trapped in the annular volume to a space formed by the exterior of the spark plug body and the interior of the pre-chamber device.

公开(公告)号：US11798325B2

公开(公告)日：2023-10-24

申请号：US17247383

申请日：2020-12-09

Applicant: Cummins Inc.

Inventor： Jeffrey Diwakar Abraham ,  Marcela Schmalz de Bernardi ,  Avra Brahma ,  Timothy J. Greis ,  Michael Haas ,  Gregory H. Henderson ,  Adam W. Kidd ,  Lyle E. Kocher ,  Krithika Mohan ,  Daniel J. Smith ,  Christophe Tricaud ,  Ananth Vemuri ,  Easwar Yarrabikki

IPC: G07C5/08 ,  F02M35/10 ,  F02M26/02 ,  F02B37/24 ,  B60R16/023 ,  G07C5/00

CPC classification number: G07C5/0808 ,  B60R16/0234 ,  F02B37/24 ,  F02M26/02 ,  F02M35/10222 ,  G07C5/008 ,  G07C5/085 ,  G07C5/0816

Abstract: A system includes a controller configured to store a relationship matrix of a plurality of diagnostic estimators and a plurality of failure modes, each failure mode represents a type of failure that can occur with (i) a sensor or (ii) a vehicle component of a vehicle system, each diagnostic estimator is associated with a respective subset of the failure modes, each respective subset defines a control volume within the vehicle system that contains at least one of (i) one or more sensors or (ii) one or more vehicle components; store a healthy diagnostic vector regarding nominal operational parameters of the vehicle system; acquire diagnostic information regarding current operational parameters of the vehicle system to generate an error diagnostic vector; divide the error diagnostic vector by the healthy diagnostic vector to generate a ratio diagnostic vector; multiply the ratio diagnostic vector with the relationship matrix to generate a value for each failure mode.