Patents by Inventor Praveen Chitradurga Muralidhar
Praveen Chitradurga Muralidhar 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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Patent number: 11892482Abstract: A method includes determining, by a controller, a presence of an available electrical energy quantity generated from an energy generation event; comparing, by the controller, the available electrical energy quantity to an available energy capacity of a battery storage system; and responsive to determining the available electrical energy quantity exceeds the available energy capacity of the battery storage system, causing, by the controller, a transmission of at least a portion of the available energy quantity to a heat management system.Type: GrantFiled: September 23, 2022Date of Patent: February 6, 2024Assignee: Cummins Inc.Inventors: Martin T. Books, Craig M. Calmer, Robert Dziuba, Mahesh Madurai-Kumar, Praveen Chitradurga Muralidhar, John P. O'Brien, Joseph E. Paquette, Gary L. Parker, Anthony K. Perfetto, Jeffrey S. Rauch, Zachary Schwab, Jon S. Wardlow
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Patent number: 11577581Abstract: A climate control system for vehicles includes an internal combustion engine that may be coupled to selectively power a first motor generator, and an air conditioning compressor that may be selectively powered by one or both of the first motor generator and a second motor generator, or by the internal combustion engine. The system may include a rechargeable battery, and a vehicle controller having a vehicle state circuit structured to determine a vehicle operating condition value and a state-of-charge value of the rechargeable battery, and a coupling determination circuit structured to provide an internal combustion engine-first motor generator coupling command in response to the vehicle operating condition value and the state-of-charge value. In response to the internal combustion engine-first motor generator coupling command being provided as coupled, the internal combustion engine may power the first motor generator.Type: GrantFiled: June 26, 2017Date of Patent: February 14, 2023Assignee: Cummins Inc.Inventors: Mahesh Madurai Kumar, Gary L. Parker, Subbarao Varigonda, Joseph E. Paquette, Benjamin David Padgett, William Brent Fields, Praveen Chitradurga Muralidhar, Vivek Anand Sujan, Dean Deter, David E. Smith
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Publication number: 20230018314Abstract: A method includes determining, by a controller, a presence of an available electrical energy quantity generated from an energy generation event; comparing, by the controller, the available electrical energy quantity to an available energy capacity of a battery storage system; and responsive to determining the available electrical energy quantity exceeds the available energy capacity of the battery storage system, causing, by the controller, a transmission of at least a portion of the available energy quantity to a heat management system.Type: ApplicationFiled: September 23, 2022Publication date: January 19, 2023Applicant: Cummins Inc.Inventors: Martin T. Books, Craig M. Calmer, Robert Dziuba, Mahesh Madurai-Kumar, Praveen Chitradurga Muralidhar, John P. O'Brien, Joseph E. Paquette, Gary L. Parker, Anthony K. Perfetto, Jeffrey S. Rauch, Zachary Schwab, Jon S. Wardlow
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Publication number: 20220402481Abstract: A method for controlling the distribution of power to a traction motor in a plug-in electric vehicle having a plurality of on-board sources of electric power. Power is distributed at a normal power control relationship in response to an operator control input during operation in a normal mode. Power is depleted at a first rate during operation of the vehicle in the normal mode. Power is distributed at a derate power control relationship in response to the operator control input during operation in a derate mode. Power is depleted at a second rate that is less than the first rate during operation in the derate mode to conserve the power of the one or more on-board sources. Operation in the derate mode can be initiated in response to information from sensors identifying a vehicle condition indicating a battery charge limitation.Type: ApplicationFiled: September 24, 2020Publication date: December 22, 2022Inventors: Martin T. Books, Jennifer Kay Light-Holets, Praveen Chitradurga Muralidhar, David E. Schister
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Patent number: 11529941Abstract: A method of controlling a vehicle accessory includes determining a transmission of a vehicle is in a non-park setting; in response to determining the transmission of the vehicle is in the non-park setting, receiving speed data indicative of a speed of the vehicle; determining a speed to operate the vehicle accessory based on the vehicle speed; comparing the determined speed to operate the vehicle accessory to a speed threshold; and in response to determining that the determined speed is below the speed threshold, providing a command to the vehicle accessory to one of deactivate the vehicle accessory or operate the vehicle accessory at a reduced operating state relative to a current operating state of the vehicle accessory.Type: GrantFiled: December 8, 2020Date of Patent: December 20, 2022Assignee: Cummins Inc.Inventors: Martin T. Books, Mahesh Madurai Kumar, Robert Dziuba, Praveen Chitradurga Muralidhar, Jeffrey S. Rauch, Joseph E. Paquette
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Patent number: 11493541Abstract: Various systems, methods, and apparatuses disclosed herein provide for receiving pressure data for an accumulator system, the pressure data providing an indication of a pressure in an accumulator tank of the accumulator system; receiving energy data, the energy data indicating an availability of free energy for use to charge the accumulator tank; and activating a charging source of the accumulator tank to charge the accumulator tank based on at least one of the pressure data and the energy data.Type: GrantFiled: August 1, 2019Date of Patent: November 8, 2022Assignee: Cummins, Inc.Inventors: Martin T. Books, Craig M. Calmer, Robert Dziuba, Mahesh Madurai-Kumar, Praveen Chitradurga Muralidhar, John P. O'Brien, Joseph E. Paquette, Gary L. Parker, Anthony K. Perfetto, Jeffrey S. Rauch, Zachary Schwab, Jon S. Wardlow
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Patent number: 11351980Abstract: An apparatus includes a route circuit and a stop-start circuit. The route circuit is structured to estimate a number of charging locations for an energy storage system of a vehicle for a planned route. The stop-start circuit is structured to determine a stop-start strategy for an engine of the vehicle based on the estimated number of charging locations and expected charges to be received by the energy storage system. The stop-start strategy defines a frequency and duration of using the engine in an on-mode during operation of the vehicle along the planned route. The stop-start circuit is further structured to determine that the energy storage system fails to receive an expected charge at one of the charging locations, and update the stop-start strategy to compensate for failing to receive the expected charge by increasing use of the engine in the on-mode during operation of the vehicle along the planned route.Type: GrantFiled: July 5, 2018Date of Patent: June 7, 2022Assignee: Cummins Inc.Inventors: Martin T. Books, Praveen Chitradurga Muralidhar
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Patent number: 11164405Abstract: The present disclosure provides a method in a vehicle, comprising detecting an engine stop opportunity and recording, in a memory, data corresponding to a first engine stop that occurred in response to detection of the engine stop opportunity. The method further includes detecting an engine stop inhibit, and recording, in a memory, data corresponding to a first missed engine stop wherein the first missed engine stop indicates detection of the engine stop opportunity without an engine stop in response to the detection of the engine stop opportunity.Type: GrantFiled: September 9, 2015Date of Patent: November 2, 2021Assignee: Cummins Inc.Inventors: Martin T. Books, Praveen Chitradurga Muralidhar, Jeffrey S. Rauch, Jon S. Wardlow
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Publication number: 20210086745Abstract: A method of controlling a vehicle accessory includes determining a transmission of a vehicle is in a non-park setting; in response to determining the transmission of the vehicle is in the non-park setting, receiving speed data indicative of a speed of the vehicle; determining a speed to operate the vehicle accessory based on the vehicle speed; comparing the determined speed to operate the vehicle accessory to a speed threshold; and in response to determining that the determined speed is below the speed threshold, providing a command to the vehicle accessory to one of deactivate the vehicle accessory or operate the vehicle accessory at a reduced operating state relative to a current operating state of the vehicle accessory.Type: ApplicationFiled: December 8, 2020Publication date: March 25, 2021Applicant: Cummins Inc.Inventors: Martin T. Books, Mahesh Madurai Kumar, Robert Dziuba, Praveen Chitradurga Muralidhar, Jeffrey S. Rauch, Joseph E. Paquette
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Patent number: 10882509Abstract: A method of controlling a vehicle accessory includes determining a transmission of a vehicle is in a non-park setting; in response to determining the transmission of the vehicle is in the non-park setting, receiving speed data indicative of a speed of the vehicle; determining a speed to operate the vehicle accessory based on the vehicle speed; comparing the determined speed to operate the vehicle accessory to a speed threshold; and in response to determining that the determined speed is below the speed threshold, providing a command to the vehicle accessory to one of deactivate the vehicle accessory or operate the vehicle accessory at a reduced operating state relative to a current operating state of the vehicle accessory.Type: GrantFiled: November 7, 2018Date of Patent: January 5, 2021Assignee: Cummins, Inc.Inventors: Martin T. Books, Mahesh Madurai Kumar, Robert Dziuba, Praveen Chitradurga Muralidhar, Jeffrey S. Rauch, Joseph E. Paquette
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Publication number: 20200164859Abstract: An apparatus includes a route circuit and a stop-start circuit. The route circuit is structured to estimate a number of charging locations for an energy storage system of a vehicle for a planned route. The stop-start circuit is structured to determine a stop-start strategy for an engine of the vehicle based on the estimated number of charging locations and expected charges to be received by the energy storage system. The stop-start strategy defines a frequency and duration of using the engine in an on-mode during operation of the vehicle along the planned route. The stop-start circuit is further structured to determine that the energy storage system fails to receive an expected charge at one of the charging locations, and update the stop-start strategy to compensate for failing to receive the expected charge by increasing use of the engine in the on-mode during operation of the vehicle along the planned route.Type: ApplicationFiled: July 5, 2018Publication date: May 28, 2020Applicant: Cummins Inc.Inventors: Martin T. Books, Praveen Chitradurga Muralidhar
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Publication number: 20190353688Abstract: Various systems, methods, and apparatuses disclosed herein provide for receiving pressure data for an accumulator system, the pressure data providing an indication of a pressure in an accumulator tank of the accumulator system; receiving energy data, the energy data indicating an availability of free energy for use to charge the accumulator tank; and activating a charging source of the accumulator tank to charge the accumulator tank based on at least one of the pressure data and the energy data.Type: ApplicationFiled: August 1, 2019Publication date: November 21, 2019Applicant: Cummins, Inc.Inventors: Martin T. Books, Craig M. Calmer, Robert Dziuba, Mahesh Madurai-Kumar, Praveen Chitradurga Muralidhar, John P. O'Brien, Joseph E. Paquette, Gary L. Parker, Anthony K. Perfetto, Jeffrey S. Rauch, Zachary Schwab, Jon S. Wardlow
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Patent number: 10379143Abstract: Various systems, methods, and apparatuses disclosed herein provide for receiving pressure data for an accumulator system, the pressure data providing an indication of a pressure in an accumulator tank of the accumulator system; receiving energy data, the energy data indicating an availability of free energy for use to charge the accumulator tank; and activating a charging source of the accumulator tank to charge the accumulator tank based on at least one of the pressure data and the energy data.Type: GrantFiled: July 22, 2015Date of Patent: August 13, 2019Assignee: Cummins, Inc.Inventors: Martin T. Books, Craig M. Calmer, Robert Dziuba, Mahesh Madurai-Kumar, Praveen Chitradurga Muralidhar, John P. O'Brien, Joseph E. Paquette, Gary L. Parker, Anthony K. Perfetto, Jeffrey S. Rauch, Zachary Schwab, Jon S. Wardlow
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Patent number: 10272896Abstract: A device includes at least one of a brake position sensor operationally coupled to a brake and providing a brake position signal, or a clutch position sensor operationally coupled to a clutch and providing a clutch position signal. The device further includes a controller having a communication module structured to interpret the at least one of the brake position signal or the clutch position signal, and a collection module structured to collect vehicle dynamics information. The controller further includes a vehicle dynamics module structured to interpret the vehicle dynamics information, and a sensor diagnostics module structured to determine a failure of at least one of the clutch position sensor or the brake position sensor in response to the vehicle dynamics information and at least one of the clutch signal or the brake signal.Type: GrantFiled: November 3, 2017Date of Patent: April 30, 2019Assignee: Cummins, Inc.Inventors: Martin T. Books, Praveen Chitradurga Muralidhar
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Patent number: 10239514Abstract: A hybrid controller unit includes a detection module, a gear-hold module, a gear-skip module, and an optimizing module. The detection module is structured to detect a deceleration event. The gear-hold module is structured to determine whether a certain gear of a transmission should be maintained for a certain period of time in order to optimize power regeneration during the deceleration event. The gear-hold module is also structured to generate a gear-hold request. The gear-skip module is structured to determine whether the transmission should skip a gear in order to optimize power regeneration during the deceleration event. The gear-skip module is also structured to generate a gear-skip request. The optimizing module is structured to receive the gear-hold request and the gear-skip request and generate a transmission command to be sent to a transmission control unit for actuation.Type: GrantFiled: February 23, 2015Date of Patent: March 26, 2019Assignee: Cummins Inc.Inventors: Mahesh Madurai-Kumar, Tung-Ming Hsieh, Pinak Tulpule, Praveen Chitradurga Muralidhar, Martin T. Books
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Publication number: 20190071065Abstract: A method of controlling a vehicle accessory includes determining a transmission of a vehicle is in a non-park setting; in response to determining the transmission of the vehicle is in the non-park setting, receiving speed data indicative of a speed of the vehicle; determining a speed to operate the vehicle accessory based on the vehicle speed; comparing the determined speed to operate the vehicle accessory to a speed threshold; and in response to determining that the determined speed is below the speed threshold, providing a command to the vehicle accessory to one of deactivate the vehicle accessory or operate the vehicle accessory at a reduced operating state relative to a current operating state of the vehicle accessory.Type: ApplicationFiled: November 7, 2018Publication date: March 7, 2019Applicant: Cummins, Inc.Inventors: Martin T. Books, Mahesh Madurai Kumar, Robert Dziuba, Praveen Chitradurga Muralidhar, Jeffrey S. Rauch, Joseph E. Paquette
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Patent number: 10124785Abstract: A method of controlling electrically-powered vehicle accessories includes receiving energy data, the energy data providing an indication of an availability of free energy; receiving an electrically-powered vehicle accessory classification for an electrically-powered vehicle accessory, the classification including one of a critical and a discretionary electrically-powered vehicle accessory; receiving a prioritization for the electrically-powered vehicle accessory based on the classification and whether the electrically-powered vehicle accessory has an energy storage component; and providing a command to control energy consumption by the electrically-powered vehicle accessory based on its prioritization and the availability of free energy.Type: GrantFiled: August 24, 2015Date of Patent: November 13, 2018Assignee: Cummins, Inc.Inventors: Martin T. Books, Mahesh Madurai Kumar, Robert Dziuba, Praveen Chitradurga Muralidhar, Jeffrey S. Rauch, Joseph E. Paquette
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Patent number: 10081355Abstract: A system includes a hybrid power train comprising an internal combustion engine and electrical system, which includes a first and second electrical torque provider, and an electrical energy storage device electrically coupled to first and second electrical torque provider. The system further includes a controller structured to perform operations including determining a power surplus value of the electrical system; determining a machine power demand change value; in response to the power surplus value of the electrical system being greater than or equal to the machine power demand change value, operating an optimum cost controller to determine a power division for the engine, first electrical torque provider, and second electrical torque provider; and in response to the power surplus value of the electrical system being less than the machine power demand change value, operating a rule-based controller to determine the power division for the engine, first, and second electrical torque provider.Type: GrantFiled: February 24, 2015Date of Patent: September 25, 2018Assignee: Cummins Inc.Inventors: Vivek Anand Sujan, Martin T. Books, Patrick O. Djan-Sampson, Praveen Chitradurga Muralidhar
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Publication number: 20180261024Abstract: The present disclosure provides a method in a vehicle, comprising detecting an engine stop opportunity and recording, in a memory, data corresponding to a first engine stop that occurred in response to detection of the engine stop opportunity. The method further includes detecting an engine stop inhibit, and recording, in a memory, data corresponding to a first missed engine stop wherein the first missed engine stop indicates detection of the engine stop opportunity without an engine stop in response to the detection of the engine stop opportunity.Type: ApplicationFiled: September 9, 2015Publication date: September 13, 2018Inventors: Martin T. BOOKS, Praveen Chitradurga MURALIDHAR, Jeffrey S. RAUCH, Jon S. WARDLOW
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Patent number: 10000197Abstract: Mild hybrid powertrain controls and apparatuses, methods and systems including the same are disclosed. One exemplary embodiment is a mild-hybrid system comprising an engine, an electrical machine, power electronics, an energy storage system, and an electrical load. The system includes a controller structured to receive an electrical machine power command based upon a power allocation to the electrical machine, process the electrical machine power command with feedforward controls structured to compensate for an inaccuracy associated with the power electronics, process the electrical machine power command with proportional integral (PI) controls structured to compensate for a power loss associated with one or more electrical loads, provide a compensated machine power command based upon the processing with the feedforward controls and the processing with the PI controls, and output the compensated machine power command to control the electrical machine.Type: GrantFiled: August 10, 2016Date of Patent: June 19, 2018Assignee: Cummins Inc.Inventors: Vivek A. Sujan, Arun Prakash Thunga Gopal, Subbarao Varigonda, Jaroslaw Leonarski, Praveen Chitradurga Muralidhar