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公开(公告)号：US10647175B2
公开(公告)日：2020-05-12
申请号：US16168340
申请日：2018-10-23
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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公开(公告)号：US12055107B2
公开(公告)日：2024-08-06
申请号：US17420186
申请日：2019-12-30
Applicant: Cummins Inc.
Inventor： Chirag Dhirajlal Ambaliya , Randal L. Bergstedt , Sunil Dhulipati , Hari Donepudi , Rohit Saha , Jagdeep I. Singh , Sumit Tripathi
CPC classification number: F02D29/04 , F02D1/02 , F02D29/02 , F02D31/002 , F02D31/007 , F02D33/02 , F04B17/05 , F04B49/08
Abstract: A method includes detecting a change in a loading condition on an engine based on use of an implement system including a pump driven by the engine, an actuator fluidly coupled to the pump, and an implement repositionable with the actuator. The change in the loading condition is detected based on a variation in a command signal from a joystick that controls movement of the implement, an outlet pressure of the pump, a displacement of the pump, and/or an engagement signal of a clutch positioned to selectively couple the pump to the engine. The method further includes commanding a fueling system to increase an amount of fuel provided to the engine and/or an air handling system of the machine to increase an amount of air and/or a boost pressure of the air provided to the engine in response to detection of an increasing loading condition based on the variation.
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公开(公告)号：US20210039019A1
公开(公告)日：2021-02-11
申请号：US16984561
申请日：2020-08-04
Applicant: CUMMINS INC.
Inventor： Randal L. Bergstedt , Rohit Saha , Eric P. Greene
IPC: B01D19/00
Abstract: A de-aeration tank comprises a housing defining an interior volume. A first baffle comprises a first baffle first portion coupled to a first baffle second portion. The first baffle first portion extends away from the first baffle second portion at a nonzero angle, and the first baffle second portion is positioned so as to come into contact with the fluid entering the housing through an inlet vent. A first air vent is defined by a first distance between the first portion and the housing. A second baffle comprises a second baffle first portion coupled to the second baffle second portion. The second baffle first portion extends away from the second baffle second portion at a nonzero angle, and the second baffle second portion is positioned so as to come into contact with the fluid directed by the second portion and direct the fluid toward the bottom of the interior volume.
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公开(公告)号：US10913441B2
公开(公告)日：2021-02-09
申请号：US16954636
申请日：2018-12-17
Applicant: Cummins, Inc.
Inventor： Rohit Saha
IPC: B60W10/06 , B60W10/101 , B60W10/04 , B60W30/188 , E02F9/20
Abstract: Systems and apparatuses of a vehicle include an engine control circuit structured to control an engine speed, a transmission control circuit structured to control a transmission, an implement control circuit structured to control an implement, and a processing circuit structured to receive a travel signal indicative of a travel mode for the vehicle, or an implement signal indicative of an implement mode for the vehicle. In response to operating in the travel mode, the transmission control circuit determines the engine speed and the implement control circuit limits an implement torque to maintain the engine speed. In response to operating in the implement mode, the engine control circuit determines the engine speed and the transmission control circuit limits a propulsion torque to maintain the engine speed.
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公开(公告)号：US20190143786A1
公开(公告)日：2019-05-16
申请号：US16168340
申请日：2018-10-23
Applicant: Cummins Inc.
Inventor： Rohit Saha , Long K. Hwang
IPC: B60H1/00
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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Patent Agency Ranking
公开(公告)号：US20240369025A1
公开(公告)日：2024-11-07
申请号：US18774879
申请日：2024-07-16
Applicant: Cummins Inc.
Inventor： Chirag Dhirajlal Ambaliya , Randal L. Bergstedt , Sunil Dhulipati , Hari Donepudi , Rohit Saha , Jagdeep I. Singh , Sumit Tripathi
Abstract: A method for controlling air and fuel supply to an engine of a machine includes: detecting, by a processing circuit, a change in a loading condition on the engine of the machine based on use of an implement system of the machine; and providing, by the processing circuit, a command to (i) a fueling system of the machine to increase an amount of fuel provided to the engine by the fueling system and (ii) an air handling system of the machine to increase at least one of (a) an amount of air or (b) a boost pressure of the air provided to the engine by the air handling system in response to an increase in the loading condition.
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17.发明授权公开(公告)号：US11680532B2
公开(公告)日：2023-06-20
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
CPC classification number: F02D13/06 , F02B37/24 , F02D41/008 , F02D41/2429 , F02D41/3064
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：US20220090544A1
公开(公告)日：2022-03-24
申请号：US17420186
申请日：2019-12-30
Applicant: Cummins Inc.
Inventor： Chirag Dhirajlal Ambaliya , Randal L. Bergstedt , Sunil Dhulipati , Hari Donepudi , Rohit Saha , Jagdeep I. Singh , Sumit Tripathi
Abstract: A method includes detecting a change in a loading condition on an engine based on use of an implement system including a pump driven by the engine, an actuator fluidly coupled to the pump, and an implement repositionable with the actuator. The change in the loading condition is detected based on a variation in a command signal from a joystick that controls movement of the implement, an outlet pressure of the pump, a displacement of the pump, and/or an engagement signal of a clutch positioned to selectively couple the pump to the engine. The method further includes commanding a fueling system to increase an amount of fuel provided to the engine and/or an air handling system of the machine to increase an amount of air and/or a boost pressure of the air provided to the engine in response to detection of an increasing loading condition based on the variation.
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公开(公告)号：US20200317182A1
公开(公告)日：2020-10-08
申请号：US16954636
申请日：2018-12-17
Applicant: Cummins, Inc.
Inventor： Rohit Saha
IPC: B60W10/04 , B60W30/188 , B60W10/101 , E02F9/20
Abstract: Systems and apparatuses of a vehicle include an engine control circuit structured to control an engine speed, a transmission control circuit structured to control a transmission, an implement control circuit structured to control an implement, and a processing circuit structured to receive a travel signal indicative of a travel mode for the vehicle, or an implement signal indicative of an implement mode for the vehicle. In response to operating in the travel mode, the transmission control circuit determines the engine speed and the implement control circuit limits an implement torque to maintain the engine speed. In response to operating in the implement mode, the engine control circuit determines the engine speed and the transmission control circuit limits a propulsion torque to maintain the engine speed.
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公开(公告)号：US20200215875A1
公开(公告)日：2020-07-09
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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