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).

  • Patent number: 9169763
    Abstract: 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: Grant
    Filed: April 11, 2011
    Date of Patent: October 27, 2015
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Venkata Prasad Atluri, Kushal Narayanaswamy, Paul M. Najt, Yongsheng He, Madhusudan Raghavan
  • Patent number: 9156359
    Abstract: 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: Grant
    Filed: September 28, 2012
    Date of Patent: October 13, 2015
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Venkata Prasad Atluri, Michael Gerard Rubbo, Larry D. Laws
  • Publication number: 20150258883
    Abstract: 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: Application
    Filed: March 13, 2014
    Publication date: September 17, 2015
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Alan G. Holmes, Alexandru Rajala, Chandra S. Namuduri, Venkata Prasad Atluri
  • Publication number: 20150258881
    Abstract: 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: Application
    Filed: March 13, 2014
    Publication date: September 17, 2015
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Alan G. Holmes, Venkata Prasad Atluri, Chandra S. Namuduri, Robert S. Conell, Michael G. Reynolds, Thomas Wolfgang Nehl, Bob R. Powell, Madhusudan Raghavan
  • Publication number: 20150260145
    Abstract: 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: Application
    Filed: March 13, 2014
    Publication date: September 17, 2015
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Alan G. Holmes, Michael G. Reynolds, Alexandru Rajala, Chandra S. Namuduri, Venkata Prasad Atluri
  • Publication number: 20150258984
    Abstract: 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: Application
    Filed: March 13, 2014
    Publication date: September 17, 2015
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Venkata Prasad Atluri, Matias Garibaldi, Chandra S. Namuduri
  • Patent number: 9108633
    Abstract: 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: Grant
    Filed: March 13, 2014
    Date of Patent: August 18, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Venkata Prasad Atluri, Chandra S. Namuduri, Suresh Gopalakrishnan, Alan G. Holmes, William R. Cawthorne
  • Publication number: 20150134202
    Abstract: 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: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Applicants: The U.S.A. As Represented by the Administrator of the National Aeronautics and Space Adminstration, GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Andrew D. Dawson, William J. Bluethmann, Chunhao J. Lee, Robert L. Vitale, Raymond Guo, Venkata Prasad Atluri
  • Publication number: 20140095018
    Abstract: 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: Application
    Filed: September 28, 2012
    Publication date: April 3, 2014
    Applicant: GM Global Technology Operations LLC
    Inventors: Venkata Prasad Atluri, Michael Gerard Rubbo, Larry D. Laws
  • Patent number: 8612075
    Abstract: 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: Grant
    Filed: June 4, 2010
    Date of Patent: December 17, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Venkata Prasad Atluri, Thomas L. Gibson, Nelson A. Kelly
  • Patent number: 8538617
    Abstract: 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: Grant
    Filed: June 15, 2011
    Date of Patent: September 17, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Venkata Prasad Atluri, Madhusudan Raghavan
  • Patent number: 8527129
    Abstract: 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: Grant
    Filed: October 27, 2011
    Date of Patent: September 3, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Venkata Prasad Atluri, Subhash B. Gullapalli
  • Publication number: 20130110330
    Abstract: 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: Application
    Filed: October 27, 2011
    Publication date: May 2, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Venkata Prasad Atluri, Subhash B. Gullapalli
  • Patent number: 8424287
    Abstract: 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: Grant
    Filed: March 30, 2011
    Date of Patent: April 23, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Venkata Prasad Atluri, Yongsheng He, Madhusudan Raghavan
  • Publication number: 20120323415
    Abstract: 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: Application
    Filed: June 15, 2011
    Publication date: December 20, 2012
    Applicant: GM GLOBAL TECHNOLOG OPERATIONS LLC
    Inventors: Venkata Prasad Atluri, Madhusudan Raghavan
  • Publication number: 20120286052
    Abstract: 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: Application
    Filed: May 11, 2011
    Publication date: November 15, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Venkata Prasad ATLURI, Kushal Narayanaswamy, Gerald A. Szekely, JR., Joel G. Toner, Paul M. Najt
  • Publication number: 20120255279
    Abstract: 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: Application
    Filed: April 11, 2011
    Publication date: October 11, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Venkata Prasad ATLURI, Kushal NARAYANASWAMY, Paul M. NAJT, Yongsheng HE, Madhusudan RAGHAVAN
  • Publication number: 20120247084
    Abstract: 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: Application
    Filed: March 30, 2011
    Publication date: October 4, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Venkata Prasad ATLURI, Yongsheng HE, Madhusudan RAGHAVAN
  • Publication number: 20110301790
    Abstract: 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: Application
    Filed: June 4, 2010
    Publication date: December 8, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Venkata Prasad Atluri, Thomas L. Gibson, Nelson A. Kelly