公开(公告)号：US20220221523A1

公开(公告)日：2022-07-14

申请号：US17614130

申请日：2020-05-29

Applicant: Cummins Inc.

Inventor： Omkar A. Harshe ,  Kameshwaran Sasidharan ,  John P. O'Brien

IPC: G01R31/392 ,  G01R31/367 ,  B60L58/16

Abstract: Methods and systems of estimating an end of life of a rechargeable energy storage device in an energy storage system is disclosed. The system includes at least a motor, the energy storage device associated with the motor, a processing unit associated with the energy storage device, and at least one sensor operatively coupled with the processing unit and the energy storage device. The method includes measuring a most recent state of health (SOH) of the energy storage device after the system is started, storing the most recent SOH with at least one previously measured SOH, calculating a new replace-by date of the energy storage device based on the most recent SOH and the at least one previously measured SOH, and replacing a previously calculated old replace-by date with the new replace-by date, the new replace-by date being the same as or shorter than the old replace-by date.

公开(公告)号：US11247551B2

公开(公告)日：2022-02-15

申请号：US16641404

申请日：2017-09-08

Applicant: CUMMINS INC.

Inventor： John P. O'Brien

IPC: B60K6/12 ,  B60W10/08 ,  F16H61/4096

Abstract: A hydraulic engine system includes a first hydraulic pump-motor coupled to an engine and a second hydraulic pump-motor coupled to an electric machine. A hydraulic link fluidly connects the first and the second hydraulic pump-motors. During a cranking operation mode, the electric machine operates as a motor and transfers power via the second hydraulic pump-motor, the hydraulic link and the first hydraulic pump-motor to provide cranking torque to the engine. During a generator operation mode, the power generated by the engine is transferred via the first hydraulic pump-motor, the hydraulic link, and the second hydraulic pump-motor to the electric machine, operating as a generator, to generate electricity.

公开(公告)号：US10760650B2

公开(公告)日：2020-09-01

申请号：US15273111

申请日：2016-09-22

Applicant: Cummins Inc.

Inventor： John P. O'Brien

IPC: F16H3/00 ,  F02N11/08 ,  F02N15/02 ,  F02N11/04 ,  B60K6/383

Abstract: A gearbox includes a first shaft operatively coupled to an output of an engine, with the first shaft having a first longitudinal axis. A second shaft is operatively coupled to a driveshaft of an electric machine, the second shaft having a second longitudinal axis. The second longitudinal axis is non-coaxial with the first longitudinal axis. A geartrain operatively couples the first and second shafts. The geartrain is structured to passively switch between a first gear ratio and a different second gear ratio.

公开(公告)号：US10662847B2

公开(公告)日：2020-05-26

申请号：US15918424

申请日：2018-03-12

Applicant: Cummins Inc.

Inventor： Erik L. Piper ,  Robert Edward Cochran ,  John P. O'Brien

IPC: F01N3/20 ,  F02N11/08 ,  F02D41/02 ,  F02D41/14

Abstract: An apparatus and method for controlling engine start/stop operations based at least in part on considerations relating to the thermal management of an exhaust gas after-treatment system. A control system may monitor and/or predict conditions and/or properties of the after-treatment system, including conditions related to the thermal management of a selective catalytic reduction system and the properties of an exhaust gas stream that has been released from an internal combustion engine and into the after-treatment system. Such conditions may be evaluated in determining whether the thermal management of the after-treatment system is at, or will be in, a condition that may accommodate a start/stop operation of the internal combustion engine with minimal, if any, adverse impact on the thermal management of the after-treatment system. Such an evaluation may, in at least certain situations, provide at least a consideration as to whether to de-activate or activate start/stop operations.

公开(公告)号：US20190107098A1

公开(公告)日：2019-04-11

申请号：US16215088

申请日：2018-12-10

Applicant: Cummins, Inc.

Inventor： Martin T. Books ,  John P. O'Brien ,  Jaideep Prasad ,  Jeffrey S. Rauch

IPC: F02N11/08 ,  F02D41/06 ,  F02D41/08 ,  F02D41/04

CPC classification number: F02N11/0829 ,  F02D41/042 ,  F02D41/06 ,  F02D41/086 ,  F02D2200/022 ,  F02D2200/1006 ,  F02N2200/023 ,  Y02T10/48

Abstract: An apparatus includes an engine friction module in operative communication with an engine and structured to interpret engine operation data indicative of an engine friction amount, and a stop/start module structured to compare the engine operation data with predetermined protective criteria that includes an engine friction threshold and to turn off the engine for at least a portion of time based on the engine friction threshold exceeding the engine friction amount.

公开(公告)号：US20190001981A1

公开(公告)日：2019-01-03

申请号：US16123449

申请日：2018-09-06

Applicant: Cummins Inc.

Inventor： Arun Prakash Thunga Gopal ,  Martin T. Books ,  Jennifer Kay Light-Holets ,  Joseph E. Paquette ,  John P. O'Brien

IPC: B60W30/18 ,  B60W10/06 ,  B60W10/08 ,  B60W20/15

Abstract: Controls for improved performance of a vehicle equipped with start-stop control logic are disclosed. Deviation from nominal engine start-stop control logic for the internal combustion engine occurs when a predetermined mission related type of stop event will occur or is occurring that is different from other stop event types that are controlled by the nominal engine start-stop control logic. At least one of a location and a payload associated with the mission related stop event type is provided as an input to the controller before the vehicle arrives at the stop event so that operating parameters of the vehicle are controlled accordingly.

公开(公告)号：US10151290B2

公开(公告)日：2018-12-11

申请号：US15559249

申请日：2015-03-20

Applicant: Cummins, Inc.

Inventor： Martin T. Books ,  John P. O'Brien ,  Jaideep Prasad ,  Jeffrey S. Rauch

IPC: F02N11/08 ,  F02D41/08 ,  F02D41/04 ,  F02D41/06

Abstract: An apparatus includes an engine friction module in operative communication with an engine and structured to interpret engine operation data indicative of an engine friction amount, and a stop/start module structured to compare the engine operation data with predetermined protective criteria that includes an engine friction threshold and to turn off the engine for at least a portion of time based on the engine friction threshold exceeding the engine friction amount.

公开(公告)号：US20180202341A1

公开(公告)日：2018-07-19

申请号：US15918424

申请日：2018-03-12

Applicant: Cummins Inc.

Inventor： Erik L. Piper ,  Robert Edward Cochran ,  John P. O'Brien

IPC: F01N3/20 ,  F02D41/02 ,  F02D41/14 ,  F02N11/08

Abstract: An apparatus and method for controlling engine start/stop operations based at least in part on considerations relating to the thermal management of an exhaust gas after-treatment system. A control system may monitor and/or predict conditions and/or properties of the after-treatment system, including conditions related to the thermal management of a selective catalytic reduction system and the properties of an exhaust gas stream that has been released from an internal combustion engine and into the after-treatment system. Such conditions may be evaluated in determining whether the thermal management of the after-treatment system is at, or will be in, a condition that may accommodate a start/stop operation of the internal combustion engine with minimal, if any, adverse impact on the thermal management of the after-treatment system. Such an evaluation may, in at least certain situations, provide at least a consideration as to whether to de-activate or activate start/stop operations.

公开(公告)号：US20240271394A1

公开(公告)日：2024-08-15

申请号：US18439902

申请日：2024-02-13

Applicant: Cummins Inc.

Inventor： Rahul Janarthanan ,  Micah Uemura ,  John Ringstad ,  John P. O'Brien

IPC: E02F9/26 ,  E02F9/20 ,  E02F9/22

CPC classification number: E02F9/267 ,  E02F9/207 ,  E02F9/2278

Abstract: A diagnostic system for determining a performance status of a hydraulic system of an electric work machine, the hydraulic system having a first hydraulic pump driven by an electric motor for pumping hydraulic fluid within the hydraulic system, the system comprising: a hydraulic diagnostic module configured to receive a first operating variable of the electric motor, the hydraulic diagnostic module further being configured to compare the first operating variable of the electric motor with a predetermined operational behavior and to derive a performance status of the hydraulic system based on the comparison.

公开(公告)号：US20230241996A1

公开(公告)日：2023-08-03

申请号：US18104022

申请日：2023-01-31

Applicant: Cummins Inc.

Inventor： Mark N. Bays ,  Chetan Ponnathpur ,  Erik L. Piper ,  John P. O'Brien ,  Joseph E. Paquette ,  Dilip Ramachandran ,  Omkar A. Harshe ,  Ravikanth Pulipaka ,  John K. Heichelbech

IPC: B60L53/65 ,  B60L58/18 ,  B60L58/16 ,  B60L53/10

CPC classification number: B60L53/65 ,  B60L58/18 ,  B60L58/16 ,  B60L53/10

Abstract: The present disclosure provides systems and methods for charging multiple electric vehicles. In particular, the present disclosure provides a system having a single charger configured to connect with a plurality of electric vehicles and methods for charging one or more electric vehicles using said system. The present disclosure further provides a method for bidirectional current flow between the grid and the one or more electric vehicles.