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公开(公告)号：US20240286491A1
公开(公告)日：2024-08-29
申请号：US18692652
申请日：2021-10-14
Applicant: Cummins Inc.
Inventor： Marco Gatti , Rohit Saha
CPC classification number: B60L15/20 , B60L1/003 , B60L58/12 , B60L58/30 , B60L2200/40 , B60L2240/421 , B60L2240/423 , B60L2250/16
Abstract: A control system for off-highway battery application powertrain systems that allows the operator to select one or more performance/operating modes. The one or more performance modes may be based on the work that needs to be accomplished using the machine vs. the hours needed before the next charge opportunity. Modes will take typically into consideration battery management system performance maps, Electric motor/inverter performance maps, pump performance maps and other systems communicating with the powertrain system. The operator is in control to optimize refill and/or next battery charge. The operator may have the option to select performance modes based on excavator performance vs. battery life. Remaining time and warning messages may be periodically sent to the operator based on the performance mode selected and current state of charge.
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公开(公告)号：US20210388777A1
公开(公告)日：2021-12-16
申请号：US17461188
申请日：2021-08-30
Applicant: Cummins Inc.
Inventor： Jennifer Kay Light-Holets , Rohit Saha , Timothy Shipp , Daniel J. Mohr
Abstract: Systems, apparatus, and methods are disclosed that include an internal combustion engine having a plurality of cylinders operable by a valve actuation mechanism. A cylinder deactivation operation is modified in response to determining a cyclical operation mode of the engine.
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公开(公告)号：US12280679B2
公开(公告)日：2025-04-22
申请号：US17549490
申请日：2021-12-13
Applicant: Cummins Inc. , Hydrogenics Corporation
Inventor： Archit N. Koti , Patrick Kaufman , Elizabeth Weitzel , Vivek Anand Sujan , Martin T. Books , Chinmay Rao , Yongfei Yu , Sharon Liu , Sumit Tripathi , David P. Genter , Agneya Turlapati , Rohit Saha , Jifei Yan
Abstract: The present disclosure generally relates to systems and methods for implementing power a power split between a first and a second power source in a fuel cell powertrain system. The method includes receiving an input into a processor of the fuel cell powertrain system, determining an output by the processor, communicating the output by the processor to a system controller and determining a power split by the system controller. The first power source includes a fuel cell system and the second power source is selected from a battery system or an engine, and the input includes a life or health of at least one of the first power source or the second power source.
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公开(公告)号：US20240093652A1
公开(公告)日：2024-03-21
申请号：US18510956
申请日：2023-11-16
Applicant: Cummins Inc.
Inventor： Rohit Saha , David A. Vittorio
CPC classification number: F02D29/04 , F02B63/06 , F02D41/0002 , F02D2200/101 , F02D2200/50 , F02D2200/60
Abstract: A vehicle system and method of controlling a vehicle engine are provided. The method includes determining a speed of an engine in the vehicle system including a hydraulic system and a vehicle propulsion system operatively coupled to the engine. The method includes determining that the engine speed is decreasing and an actual engine speed is less than a target engine speed, and determining a current gear setting and one or more operating parameters of the hydraulic system in response to determining that the engine speed is decreasing and the actual engine speed is less than the target engine speed. The method, in response to the current gear setting being engaged and the one or more operating parameters being greater than a predetermined threshold value, includes controlling the engine speed to be higher than the target engine speed.
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公开(公告)号：US20230175234A1
公开(公告)日：2023-06-08
申请号：US17922293
申请日：2021-04-29
Applicant: Cummins Inc.
Inventor： Rohit Saha
CPC classification number: E02F9/2203 , F15B11/17 , E02F9/2292 , E02F9/123 , E02F9/2296 , E02F9/2217 , F15B2211/426
Abstract: At least some embodiments of the present disclosure are directed to distributed pump architectures used in control systems for multifunctional machines. In some cases, a control system for a multifunctional machine includes three or more control circuits. At least two of the control circuits each has a hydraulic fluid pump and each of the pumps is controlled by a different control circuit. At least two of the hydraulic fluid pump have different flow rates.
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Patent Agency Ranking
公开(公告)号：US10344695B1
公开(公告)日：2019-07-09
申请号：US15918145
申请日：2018-03-12
Applicant: Cummins Inc.
Inventor： Randal L. Bergstedt , Rohit Saha , Martin T. Books , Richard G. Varo , Jagdeep I. Singh , Bibhu Batchal Mahanta
Abstract: An internal combustion engine operatively coupled with a variable load and an electronic control system operatively coupled with the internal combustion engine. The electronic control system is structured to receive an engine speed target value, a first engine speed feedback value, and a second engine speed feedback value. The electronic control system processes the first engine speed feedback value and the second engine speed feedback value to determine a feedforward correction value. The feedforward correction value is determined to correct for first variation between the second engine speed feedback value and the first engine speed feedback value due to variation in the variable load and to distinguish between the first variation and a second variation due to operation of the internal combustion engine. The control system processes the first engine speed feedback value target, the second engine speed feedback value and the feedforward correction value to determine an engine fueling command, and controls fueling of the internal combustion engine using the fueling command.
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公开(公告)号：US12292010B2
公开(公告)日：2025-05-06
申请号：US18510956
申请日：2023-11-16
Applicant: Cummins Inc.
Inventor： Rohit Saha , David A. Vittorio
Abstract: A vehicle system and method of controlling a vehicle engine are provided. The method includes determining a speed of an engine in the vehicle system including a hydraulic system and a vehicle propulsion system operatively coupled to the engine. The method includes determining that the engine speed is decreasing and an actual engine speed is less than a target engine speed, and determining a current gear setting and one or more operating parameters of the hydraulic system in response to determining that the engine speed is decreasing and the actual engine speed is less than the target engine speed. The method, in response to the current gear setting being engaged and the one or more operating parameters being greater than a predetermined threshold value, includes controlling the engine speed to be higher than the target engine speed.
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公开(公告)号：US20240107654A1
公开(公告)日：2024-03-28
申请号：US18265049
申请日：2021-12-03
Applicant: Cummins Inc.
Inventor： Vineet K. Pandey , William B. Fields , Isreal I. Llaguno , Bharadwaj Ramakrishnan , Bradford K.O. Palmer , Jaydeep V. Patel , Michael Hays , Dakshina S. Murthy-Bellur , Amir Tajuddin Tamboli , Rohit Saha
CPC classification number: H05K1/0201 , H05K1/0277 , H05K1/144 , H05K1/181
Abstract: A cooling plate assembly for dual-sided cooling, the cooling plate assembly can include a first cooling plate and a second cooling plate. The first cooling plate that has a first cooling plate connector side and a first cooling plate cooling side that is opposite the first cooling plate connector side. The second cooling plate that has a second cooling plate connector side and a second cooling plate cooling side that is opposite the second cooling plate connector side. The second cooling plate is configured to attach to the first cooling plate such that formed between the first cooling plate connector side and the second cooling plate connector side is at least one cooling passage through which a cooling fluid is flowed to transfer heat from both the first cooling plate cooling side and the second cooling plate cooling side to the cooling fluid.
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公开(公告)号：US11909078B2
公开(公告)日：2024-02-20
申请号：US17591532
申请日：2022-02-02
Applicant: CUMMINS INC.
Inventor： Archit Koti , Rohit Saha , Sumit Tripathi , Christopher Nelson , Agneya Turlapati , Jairo A. Martinez Garcia , Sachin Vinayak Damle , Suhas Deutkar , Pradheepram Ottikkutti , Sunil Suryakant Bahulikar , Sandesh Sadawarte
IPC: H01M8/04 , H01M8/04029 , H01M8/04007
CPC classification number: H01M8/04029 , H01M8/04059 , H01M8/04067 , H01M2250/20
Abstract: The present disclosure generally relates to systems and methods of using water output from a fuel cell system to aid in heat dissipation and evaporative cooling of radiators.
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公开(公告)号：US11230161B2
公开(公告)日：2022-01-25
申请号：US16824183
申请日：2020-03-19
Applicant: Cummins Inc.
Inventor： Rohit Saha , Long K. Hwang
Abstract: A method, system, and apparatus are provided for optimizing control of the rotational speed of a fan in a vehicle so as to reduce the aerodynamic drag of a vehicle in a given operating parameter, and accordingly, to improve fuel efficiency of operation of the vehicle. Certain exemplary embodiments include determining an optimized speed of rotation of a cooling fan of the vehicle for reducing overall fuel demand in given operating conditions, and controlling rotation speed of the fan at the optimized speed in order to minimize fueling demand of a prime mover of the vehicle.
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