Patents by Inventor Venkata Prasad Atluri
Venkata Prasad Atluri 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: 9169763Abstract: A system and method for providing energy to auto systems such as systems after-treating exhaust. Energy may be received from a solar energy source electrically connected to an after-treatment system. At least some of the energy from the solar energy source may be provided to the after-treatment system to purify exhaust from an engine. A control module may provide at least some of the energy from the solar energy source to a heater, for example, to initiate heating the after-treatment system prior to starting the engine. The heater may heat the after-treatment to temperatures within a predetermined temperature range associated with optimal efficiency for the after-treatment system.Type: GrantFiled: April 11, 2011Date of Patent: October 27, 2015Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Venkata Prasad Atluri, Kushal Narayanaswamy, Paul M. Najt, Yongsheng He, Madhusudan Raghavan
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Patent number: 9156359Abstract: The present disclosure relates to an automobile electrical system including a solar subsystem. Components collect and store solar energy in an advanced energy storage subsystem including a base portion and, in some embodiments, a solar-energy buffer. The components use the solar energy selectively to meet vehicle loads, including selectively using one or more of: energy obtained directly from the solar subsystem; energy from the advanced energy storage system; and energy from a high-voltage energy converter such as an alternator or accessory power module.Type: GrantFiled: September 28, 2012Date of Patent: October 13, 2015Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Venkata Prasad Atluri, Michael Gerard Rubbo, Larry D. Laws
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Publication number: 20150258883Abstract: A powertrain for a vehicle and a method of assembling the powertrain are disclosed. An engine includes a crankshaft being rotatable about a longitudinal axis. A ring gear is attached to a first distal end of the crankshaft such that the ring gear and the crankshaft are rotatable in unison about the longitudinal axis. A starter mechanism is selectively operable to rotate the ring gear and the crankshaft to start the engine. A motor-generator includes an adapter selectively cooperating with the starter mechanism to dispose the motor-generator and the starter mechanism in alternative assembly configurations being a first assembly configuration and a second assembly configuration. The first assembly configuration is when the starter mechanism is coupleable to the adapter and the second assembly configuration is when the starter mechanism is spaced from the adapter to operate independently of the motor-generator.Type: ApplicationFiled: March 13, 2014Publication date: September 17, 2015Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Alan G. Holmes, Alexandru Rajala, Chandra S. Namuduri, Venkata Prasad Atluri
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Publication number: 20150258881Abstract: A powertrain for a vehicle is disclosed. The powertrain includes an engine, a motor-generator and a starter mechanism. The powertrain also includes a first energy storage device disposed in a parallel electrical relationship with a motor-generator and an auxiliary electric system. Additionally, the powertrain includes a first switching device selectively transitionable between a first open state to electrically disconnect the first energy storage device from at least one of the motor-generator and the auxiliary electric system, and a first closed state to electrically connect the first energy storage device to at least one of the motor-generator and the auxiliary electric system. Electrical communication between the motor-generator and the auxiliary electric system is independent of the first switching device being in the first open and closed states.Type: ApplicationFiled: March 13, 2014Publication date: September 17, 2015Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Alan G. Holmes, Venkata Prasad Atluri, Chandra S. Namuduri, Robert S. Conell, Michael G. Reynolds, Thomas Wolfgang Nehl, Bob R. Powell, Madhusudan Raghavan
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Publication number: 20150260145Abstract: A powertrain and an electromechanical apparatus are disclosed. A ring gear is attached to a first distal end of a crankshaft such that the ring gear and the crankshaft are rotatable in unison about a longitudinal axis. A motor-generator includes a motor/generator shaft being rotatable about a first axis spaced from the longitudinal axis. A starter mechanism includes a first starter gear coupleable to the motor/generator shaft and rotatable about a second axis spaced from the longitudinal axis. The first starter gear is movable along the second axis between a first position engaging the ring gear such that torque is transferred from the motor/generator shaft through the first starter gear and the ring gear to the crankshaft to start the engine, and a second position disengaged from the ring gear to rotatably disconnect the starter mechanism from the ring gear.Type: ApplicationFiled: March 13, 2014Publication date: September 17, 2015Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Alan G. Holmes, Michael G. Reynolds, Alexandru Rajala, Chandra S. Namuduri, Venkata Prasad Atluri
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Publication number: 20150258984Abstract: A method of controlling a hybrid vehicle having a hybrid powertrain with an engine and a motor/generator includes receiving data indicative of anticipated future vehicle operating conditions, and determining via a controller optimal operating parameters for the engine and for the motor/generator based at least partially on the data. A controller then commands a powertrain operating strategy for the engine and the motor/generator based on the determined optimal operating parameters. The data received can be from active onboard sensing systems and from vehicle telematics systems.Type: ApplicationFiled: March 13, 2014Publication date: September 17, 2015Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Venkata Prasad Atluri, Matias Garibaldi, Chandra S. Namuduri
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Patent number: 9108633Abstract: A hybrid powertrain with an engine, motor/generator, a belt drive train, a starting mechanism and one or more switching devices for one or more energy storage devices has at least one electronic controller that executes a stored algorithm and controls the hybrid powertrain in accordance with the stored algorithm to establish multiple operating modes including an operating mode in which a first switching device establishes an electrical connection between a first energy storage device and the motor/generator. The operating mode established can be dependent upon a parameter of the first energy storage device, a parameter of the control system, a parameter of the motor/generator, and/or a parameter of said at least one actuator. For example, the stored algorithm can control the hybrid powertrain based on a capacity to restart the engine.Type: GrantFiled: March 13, 2014Date of Patent: August 18, 2015Assignee: GM Global Technology Operations LLCInventors: Venkata Prasad Atluri, Chandra S. Namuduri, Suresh Gopalakrishnan, Alan G. Holmes, William R. Cawthorne
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Publication number: 20150134202Abstract: A method of controlling steering of a vehicle through setting wheel angles of a plurality of modular electronic corner assemblies (eModules) is provided. The method includes receiving a driving mode selected from a mode selection menu. A position of a steering input device is determined in a master controller. A velocity of the vehicle is determined, in the master controller, when the determined position of the steering input device is near center. A drive mode request corresponding to the selected driving mode to the plurality of steering controllers is transmitted to the master controller. A required steering angle of each of the plurality of eModules is determined, in the master controller, as a function of the determined position of the steering input device, the determined velocity of the vehicle, and the selected first driving mode. The eModules are set to the respective determined steering angles.Type: ApplicationFiled: November 8, 2013Publication date: May 14, 2015Applicants: The U.S.A. As Represented by the Administrator of the National Aeronautics and Space Adminstration, GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Andrew D. Dawson, William J. Bluethmann, Chunhao J. Lee, Robert L. Vitale, Raymond Guo, Venkata Prasad Atluri
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Publication number: 20140095018Abstract: The present disclosure relates to an automobile electrical system including a solar subsystem. Components collect and store solar energy in an advanced energy storage subsystem including a base portion and, in some embodiments, a solar-energy buffer. The components use the solar energy selectively to meet vehicle loads, including selectively using one or more of: energy obtained directly from the solar subsystem; energy from the advanced energy storage system; and energy from a high-voltage energy converter such as an alternator or accessory power module.Type: ApplicationFiled: September 28, 2012Publication date: April 3, 2014Applicant: GM Global Technology Operations LLCInventors: Venkata Prasad Atluri, Michael Gerard Rubbo, Larry D. Laws
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Patent number: 8612075Abstract: An electric or hybrid-electric vehicle is provided with vehicle-mounted solar cells capable of generating electrical power. The power from the array is directed to vehicle systems according to a pre-determined algorithm intended to most effectively extend the vehicle range when operated under electric power. Power from the solar cells is directed by a controller, and may be applied to directly charge the batteries or to power electric power receiving devices, for example, to control cabin temperatures, depending on factors including the state of charge of the batteries, whether or not, the vehicle is parked and the current cabin temperature. The controller is also capable of controlling and managing the operating voltage of the solar cells to ensure optimal power extraction from the cells.Type: GrantFiled: June 4, 2010Date of Patent: December 17, 2013Assignee: GM Global Technology Operations LLCInventors: Venkata Prasad Atluri, Thomas L. Gibson, Nelson A. Kelly
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Patent number: 8538617Abstract: An auxiliary energy management system for a vehicle includes an energy storage device, solar panel array, a preconditioning device, a communication module and a solar control module. The solar panel array generates electrical energy. The pre-conditioning device generates a temperature change to the vehicle. The solar control module includes a processor for selectively configuring a distribution of electrical energy captured by the solar energy panel to one of the energy storage device and the preconditioning device. The processor includes a mode selector logic module for indicating one of a passive enablement or active enablement of the distribution of electrical energy based on a vehicle driving status and the electrical energy availability from the solar panel array. At least one of a recharging function or a preconditioning function is enabled passively or actively based on a configuration in the mode selector logic module or a personalized configuration.Type: GrantFiled: June 15, 2011Date of Patent: September 17, 2013Assignee: GM Global Technology Operations LLCInventors: Venkata Prasad Atluri, Madhusudan Raghavan
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Patent number: 8527129Abstract: A configurable energy management system for recharging an electric vehicle. An in-vehicle renewable energy source generates electrical energy for recharging an in-vehicle energy storage device. The at least one off-vehicle renewable energy source provides electrical energy to the vehicle for recharging the in-vehicle energy storage device. A vehicle communication module transmits and receives data. An integration module integrates in-vehicle energy parameter data, in-vehicle renewable energy parameter data, off-vehicle renewable energy parameter data, user parameter data, and web-based data. A user interface device communicates user parameter data to the integration module. The user parameter data includes a prioritization of preferential parameters in re-charging the in-vehicle energy storage device.Type: GrantFiled: October 27, 2011Date of Patent: September 3, 2013Assignee: GM Global Technology Operations LLCInventors: Venkata Prasad Atluri, Subhash B. Gullapalli
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Publication number: 20130110330Abstract: A configurable energy management system for recharging an electric vehicle. An in-vehicle renewable energy source generates electrical energy for recharging an in-vehicle energy storage device. The at least one off-vehicle renewable energy source provides electrical energy to the vehicle for recharging the in-vehicle energy storage device. A vehicle communication module transmits and receives data. An integration module integrates in-vehicle energy parameter data, in-vehicle renewable energy parameter data, off-vehicle renewable energy parameter data, user parameter data, and web-based data. A user interface device communicates user parameter data to the integration module. The user parameter data includes a prioritization of preferential parameters in re-charging the in-vehicle energy storage device.Type: ApplicationFiled: October 27, 2011Publication date: May 2, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Venkata Prasad Atluri, Subhash B. Gullapalli
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Patent number: 8424287Abstract: An internal combustion engine vehicle or hybrid-electric vehicle is provided with a vehicle-mounted solar cell array capable of generating electrical power. The solar cell array and other elements, including a metal substrate catalytic convertor form a system for reducing exhaust gas emissions from the vehicle in which the power from the array is applied to minimize exhaust emissions. A primary application of the solar cell array-generated power is to preheat the catalytic convertor to a preferred operating temperature prior to engine start. But the power from the solar cells, directed by a controller, may also be applied to charge the battery or to power electric power receiving devices, for example, to control cabin temperatures. The preferred allocation of the solar power available depends on a number of factors including the state of charge of the batteries, and the time of anticipated next use of the vehicle.Type: GrantFiled: March 30, 2011Date of Patent: April 23, 2013Assignee: GM Global Technology Operations LLCInventors: Venkata Prasad Atluri, Yongsheng He, Madhusudan Raghavan
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Publication number: 20120323415Abstract: An auxiliary energy management system for a vehicle includes an energy storage device, solar panel array, a preconditioning device, a communication module and a solar control module. The solar panel array generates electrical energy. The pre-conditioning device generates a temperature change to the vehicle. The solar control module includes a processor for selectively configuring a distribution of electrical energy captured by the solar energy panel to one of the energy storage device and the preconditioning device. The processor includes a mode selector logic module for indicating one of a passive enablement or active enablement of the distribution of electrical energy based on a vehicle driving status and the electrical energy availability from the solar panel array. At least one of a recharging function or a preconditioning function is enabled passively or actively based on a configuration in the mode selector logic module or a personalized configuration.Type: ApplicationFiled: June 15, 2011Publication date: December 20, 2012Applicant: GM GLOBAL TECHNOLOG OPERATIONS LLCInventors: Venkata Prasad Atluri, Madhusudan Raghavan
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Publication number: 20120286052Abstract: A system and method of engine thermal management. Energy may be received from a solar energy source electrically connected to a vehicle propulsion system. At least some of the energy from the solar energy source may be used to heat a component of the vehicle propulsion system. A control module may provide at least some of the energy from the solar energy source to a heater, for example, to heat a component of the vehicle propulsion system prior to starting the vehicle propulsion system. The heater may heat the vehicle propulsion system to temperatures within a predetermined range associated with optimal efficiency of the vehicle propulsion system.Type: ApplicationFiled: May 11, 2011Publication date: November 15, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Venkata Prasad ATLURI, Kushal Narayanaswamy, Gerald A. Szekely, JR., Joel G. Toner, Paul M. Najt
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Publication number: 20120255279Abstract: A system and method for providing energy to auto systems such as systems after-treating exhaust. Energy may be received from a solar energy source electrically connected to an after-treatment system. At least some of the energy from the solar energy source may be provided to the after-treatment system to purify exhaust from an engine. A control module may provide at least some of the energy from the solar energy source to a heater, for example, to initiate heating the after-treatment system prior to starting the engine. The heater may heat the after-treatment to temperatures within a predetermined temperature range associated with optimal efficiency for the after-treatment system.Type: ApplicationFiled: April 11, 2011Publication date: October 11, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Venkata Prasad ATLURI, Kushal NARAYANASWAMY, Paul M. NAJT, Yongsheng HE, Madhusudan RAGHAVAN
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Publication number: 20120247084Abstract: An internal combustion engine vehicle or hybrid-electric vehicle is provided with a vehicle-mounted solar cell array capable of generating electrical power. The solar cell array and other elements, including a metal substrate catalytic convertor form a system for reducing exhaust gas emissions from the vehicle in which the power from the array is applied to minimize exhaust emissions. A primary application of the solar cell array-generated power is to preheat the catalytic convertor to a preferred operating temperature prior to engine start. But the power from the solar cells, directed by a controller, may also be applied to charge the battery or to power electric power receiving devices, for example, to control cabin temperatures. The preferred allocation of the solar power available depends on a number of factors including the state of charge of the batteries, and the time of anticipated next use of the vehicle.Type: ApplicationFiled: March 30, 2011Publication date: October 4, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Venkata Prasad ATLURI, Yongsheng HE, Madhusudan RAGHAVAN
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Publication number: 20110301790Abstract: An electric or hybrid-electric vehicle is provided with vehicle-mounted solar cells capable of generating electrical power. The power from the array is directed to vehicle systems according to a pre-determined algorithm intended to most effectively extend the vehicle range when operated under electric power. Power from the solar cells is directed by a controller, and may be applied to directly charge the batteries or to power electric power receiving devices, for example, to control cabin temperatures, depending on factors including the state of charge of the batteries, whether or not, the vehicle is parked and the current cabin temperature. The controller is also capable of controlling and managing the operating voltage of the solar cells to ensure optimal power extraction from the cells.Type: ApplicationFiled: June 4, 2010Publication date: December 8, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Venkata Prasad Atluri, Thomas L. Gibson, Nelson A. Kelly