Patents by Inventor Rohit Saha
Rohit Saha has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240107654Abstract: 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.Type: ApplicationFiled: December 3, 2021Publication date: March 28, 2024Inventors: 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
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Publication number: 20240093652Abstract: 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.Type: ApplicationFiled: November 16, 2023Publication date: March 21, 2024Inventors: Rohit Saha, David A. Vittorio
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Patent number: 11909078Abstract: 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.Type: GrantFiled: February 2, 2022Date of Patent: February 20, 2024Assignee: CUMMINS INC.Inventors: 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
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Publication number: 20230369629Abstract: The present disclosure generally relates to modular fuel cell systems that provide power, air handling, and/or cooling systems to create a hybrid or electric vehicle.Type: ApplicationFiled: May 15, 2023Publication date: November 16, 2023Inventors: Sravan Kumar RAGI, Agneya TURLAPATI, David GENTER, Brian K. LANDES, Heonjoong LEE, Kieran J. RICHARDS, Rohit SAHA, Richard J. ANCIMER, Nathaniel Ian JOOS
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Patent number: 11680532Abstract: 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.Type: GrantFiled: August 30, 2021Date of Patent: June 20, 2023Assignee: Cummins Inc.Inventors: Jennifer Kay Light-Holets, Rohit Saha, Timothy Shipp, Daniel J. Mohr
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Publication number: 20230182585Abstract: 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.Type: ApplicationFiled: December 13, 2021Publication date: June 15, 2023Inventors: 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
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Publication number: 20230175234Abstract: 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.Type: ApplicationFiled: April 29, 2021Publication date: June 8, 2023Inventor: Rohit Saha
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Publication number: 20220293972Abstract: 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.Type: ApplicationFiled: February 2, 2022Publication date: September 15, 2022Inventors: 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
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Publication number: 20220284646Abstract: Hairstyle transfer is challenging due to hair structure differences in the source and target hair. Latent Optimization of Hairstyles via Orthogonalization (LOHO) is an optimization-based approach using GAN inversion to infill missing hair structure details in latent space during hairstyle transfer. Hair is decomposed into three attributes: perceptual structure, appearance, and finer style, and includes tailored losses to model each of these attributes independently. Two-stage optimization and gradient orthogonalization enable disentangled latent space optimization of the three hair attributes. Using LOHO for latent space manipulation, users can synthesize novel photorealistic images by manipulating hair attributes either individually or jointly, transferring the desired attributes from reference hairstyles.Type: ApplicationFiled: March 3, 2022Publication date: September 8, 2022Applicant: L'OREALInventors: Rohit SAHA, Brendan DUKE
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Publication number: 20220090544Abstract: 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.Type: ApplicationFiled: December 30, 2019Publication date: March 24, 2022Applicant: Cummins Inc.Inventors: Chirag Dhirajlal Ambaliya, Randal L. Bergstedt, Sunil Dhulipati, Hari Donepudi, Rohit Saha, Jagdeep I. Singh, Sumit Tripathi
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Patent number: 11230161Abstract: 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.Type: GrantFiled: March 19, 2020Date of Patent: January 25, 2022Assignee: Cummins Inc.Inventors: Rohit Saha, Long K. Hwang
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Publication number: 20210388777Abstract: 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.Type: ApplicationFiled: August 30, 2021Publication date: December 16, 2021Inventors: Jennifer Kay Light-Holets, Rohit Saha, Timothy Shipp, Daniel J. Mohr
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Publication number: 20210039019Abstract: 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.Type: ApplicationFiled: August 4, 2020Publication date: February 11, 2021Applicant: CUMMINS INC.Inventors: Randal L. Bergstedt, Rohit Saha, Eric P. Greene
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Patent number: 10913441Abstract: 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.Type: GrantFiled: December 17, 2018Date of Patent: February 9, 2021Assignee: Cummins, Inc.Inventor: Rohit Saha
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Publication number: 20200317182Abstract: 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.Type: ApplicationFiled: December 17, 2018Publication date: October 8, 2020Applicant: Cummins, Inc.Inventor: Rohit Saha
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Publication number: 20200215875Abstract: 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.Type: ApplicationFiled: March 19, 2020Publication date: July 9, 2020Inventors: Rohit Saha, Long K. Hwang
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Patent number: 10647175Abstract: 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.Type: GrantFiled: October 23, 2018Date of Patent: May 12, 2020Assignee: Cummins Inc.Inventors: Rohit Saha, Long K. Hwang
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Patent number: 10344695Abstract: 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.Type: GrantFiled: March 12, 2018Date of Patent: July 9, 2019Assignee: Cummins Inc.Inventors: Randal L. Bergstedt, Rohit Saha, Martin T. Books, Richard G. Varo, Jagdeep I. Singh, Bibhu Batchal Mahanta
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Publication number: 20190143786Abstract: 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.Type: ApplicationFiled: October 23, 2018Publication date: May 16, 2019Inventors: Rohit Saha, Long K. Hwang