Patents by Inventor Bahram Khalighi
Bahram Khalighi 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: 20140293538Abstract: A thermal conditioning system for an inductive charging system. An open enclosure charging unit includes at least one surface generating an electromagnetic field for inductively charging a portable device. A primary conduit coupled to the open enclosure charging unit. The primary conduit outputs conditioned air to the open enclosure charging unit. The conditioned air output by the primary conduit maintains a temperature of the portable device at a predetermined temperature range within the open enclosure charging unit.Type: ApplicationFiled: March 27, 2014Publication date: October 2, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Taeyoung Han, Chih-Hung Yen, Shailendra Kaushik, Bahram Khalighi, Dan Lascu, Kenneth L. Porrett
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Publication number: 20140272496Abstract: A micro-channel cooling fin for a battery module and battery is provided. The cooling fin includes a metal plate assembly that defines a plurality of cooling channels therein. The metal plate assembly includes an inlet section for introducing a coolant into the plurality of cooling channels and an outlet section from which the coolant exits the plurality of cooling channels. Each channel has an output temperature and an input temperature such that the output temperature minus the input temperature for each cooling channel is within a predetermined amount.Type: ApplicationFiled: March 12, 2013Publication date: September 18, 2014Inventors: TAEYOUNG HAN, KUO-HUEY CHEN, BAHRAM KHALIGHI, RACHIT GARG, PHILIP KLAUS
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Publication number: 20140217194Abstract: A system, for inhibiting ice formation on a vehicle surface, and de-icing if determined needed to remove any frozen matter formed on the surface, including an anti-icing reservoir, a fluid-selecting control valve, and code that causes a processor to perform operations including determining whether the vehicle is parked, initiating, if parked, activation of, or obtaining of readouts from, any local sensors or routines to be used to determine whether a condition triggering initiation of an anti-freezing cycle is present. The operations include commencing, if triggered, an anti-icing cycle, including initiating changing of the fluid-selection valve to select the anti-freezing reservoir, and initiating pumping of the anti-icing fluid from the anti-icing reservoir to and through a fluid-dispensing nozzle, and onto the surface for inhibiting bonding of frozen material on the surface and/or remove any already formed frozen material on the surface.Type: ApplicationFiled: February 3, 2014Publication date: August 7, 2014Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Taeyoung Han, Shailendra Kaushik, Bahram Khalighi, Jeffrey A. Bozeman
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Patent number: 8785024Abstract: A heat pipe is described. The heat pipe includes a heat pipe body containing a working fluid; and a louvered cooling fin adjacent to one end of the heat pipe body, the louvered cooling fin extending outward from a surface of the heat pipe body. Air-cooled battery packs containing the heat pipe are also described.Type: GrantFiled: October 28, 2010Date of Patent: July 22, 2014Assignee: GM Global Technology Operations LLCInventors: Taeyoung Han, Kuo-Huey Chen, Bahram Khalighi
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Publication number: 20140077758Abstract: A portable device recharging system includes a base unit generating an electromagnetic field. A portable device includes a rechargeable battery inductively charged by the electromagnetic field. Spacers are disposed between the portable device and the base unit. The spacers support the portable device and maintain an air gap between the base unit and the portable device.Type: ApplicationFiled: August 13, 2013Publication date: March 20, 2014Applicant: GM Global Technology Operations LLCInventors: Shailendra Kaushik, Taeyoung Han, Dan Lascu, Jerome M. Stolicki, Xianxi Jin, Bahram Khalighi
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Publication number: 20130054096Abstract: A system and method for reducing a buffeting condition in a passenger compartment of a vehicle is disclosed herein. The system includes, but is not limited to, a blocking member disposed between the passenger compartment and an adjacent space that is configured to move between an open position and a closed position to respectively open and close an opening between the passenger compartment and the adjacent space. The system further includes a motor operatively coupled with the blocking member and configured to move the blocking member between the open position and the closed position. The system still further includes a controller operatively coupled to the motor and configured to control the motor to move the blocking member to alternate between the open position and the closed position at a predetermined rate in response to a triggering event, whereby a buffeting condition experienced in the passenger compartment is diminished.Type: ApplicationFiled: August 29, 2011Publication date: February 28, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: TAEYOUNG HAN, BAHRAM KHALIGHI, KUO-HUEY CHEN
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Publication number: 20130037252Abstract: A smart HVAC system adapted for selectively regulating fluid flow into a space generally includes an HVAC system including at least one active vent, a preferably variable blower fluidly coupled thereto, and at least one sensor associated with each vent, wherein the sensor is operable to cause the associated vent to shift between opened and closed conditions, and/or preferably the blower output to change, when an occupant is autonomously detected within at least a portion of the space.Type: ApplicationFiled: August 12, 2011Publication date: February 14, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Gregory A. Major, Thomas A. Jones, Therese A. Tant, Bahram Khalighi, Taeyoung Han, Alan L. Browne, Nancy L. Johnson, Nilesh D. Mankame
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Patent number: 8372532Abstract: A composite article for dissipating thermal energy from a secondary battery cell includes a first graphite layer, a second graphite layer spaced away from and arranged parallel to the first graphite layer, and a metal layer sandwiched between and disposed in contact with each of the first graphite layer and the second graphite layer. The composite article has a thermal conductivity of greater than or equal to about 1,200 W/mK and an electrical conductivity of greater than or equal to about 10,000 S/cm. A secondary battery module includes the composite article and a secondary battery cell having a length and an average measurable temperature along the length during operation of the secondary battery module. The composite article is disposed adjacent and in contact with the secondary battery cell to thereby dissipate thermal energy from the secondary battery cell during operation of the secondary battery module.Type: GrantFiled: May 4, 2010Date of Patent: February 12, 2013Assignee: GM Global Technology Operations LLCInventors: Kuo-Huey Chen, Taeyoung Han, Bahram Khalighi, Chih-Cheng Hsu, Herman K. Phlegm, Robert D. Drexler
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Publication number: 20110293984Abstract: A battery cell pack having improved heat transfer is described. In one embodiment, the battery cell pack includes a plurality of battery cells, each battery cell having an anode foil and a cathode foil; a pair of taps, the first tap attached to the anode foil and the second tap attached to the cathode foil; wherein at least one battery cell has a high thermal conductivity coating on at least one side of the anode foil, or the cathode foil, or both; or at least one of the taps has a high thermal conductivity coating on at least one side; or both. Methods of improving the heat transfer of battery cell packs are also described.Type: ApplicationFiled: May 28, 2010Publication date: December 1, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Taeyoung Han, Kuo-Huey Chen, Bahram Khalighi, Jan H. Aase
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Publication number: 20110274957Abstract: A composite article for dissipating thermal energy from a secondary battery cell includes a first graphite layer, a second graphite layer spaced away from and arranged parallel to the first graphite layer, and a metal layer sandwiched between and disposed in contact with each of the first graphite layer and the second graphite layer. The composite article has a thermal conductivity of greater than or equal to about 1,200 W/mK and an electrical conductivity of greater than or equal to about 10,000 S/cm. A secondary battery module includes the composite article and a secondary battery cell having a length and an average measurable temperature along the length during operation of the secondary battery module. The composite article is disposed adjacent and in contact with the secondary battery cell to thereby dissipate thermal energy from the secondary battery cell during operation of the secondary battery module.Type: ApplicationFiled: May 4, 2010Publication date: November 10, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INCInventors: Kuo-Huey Chen, Taeyoung Han, Bahram Khalighi, Chih-Cheng Hsu, Herman K. Phlegm, Robert D. Drexler
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Publication number: 20110244294Abstract: A thermal management device for dissipating thermal energy from a secondary battery cell includes a first plate defining a first channel and a second channel spaced apart from the first channel, wherein the first plate further defines an inlet port in communication with the first channel and an outlet port in communication with the second channel and spaced opposite the inlet port. The device includes a second plate configured for thermal energy exchange with the cell and disposed in contact with the first plate to define a cross-flow channel, wherein the cross-flow channel interconnects the first and second channels. A thermal management system includes a cell having a first temperature, a fluid having a second temperature that is less than the first temperature, and the device. The fluid is conveyable from the inlet port to the outlet port via the cross-flow channel to thereby dissipate thermal energy from the cell.Type: ApplicationFiled: April 5, 2010Publication date: October 6, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Taeyoung Han, Kuo-Huey Chen, Bahram Khalighi, Steven G. Goebel
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Publication number: 20110244295Abstract: A secondary battery module includes a plurality of secondary battery cells each having a measureable temperature and each spaced apart from an adjacent one of the cells to define a cooling channel therebetween. The plurality of cells includes a first one of the cells having a measureable first temperature, and a terminal one of the cells having a measureable terminal temperature and separated from the first one of the cells by at least one other of the cells. The module includes a fluid flowable within each of the cooling channels and in thermal energy exchange relationship with each of the cells. The module includes a housing having a surface defining an inlet channel disposed in fluid flow communication with each of the cooling channels and configured for directing the fluid flow to each of the cooling channels. The surface has a shape defined by a spline.Type: ApplicationFiled: April 5, 2010Publication date: October 6, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Taeyoung Han, Kuo-Huey Chen, Bahram Khalighi
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Publication number: 20110244293Abstract: A secondary battery module includes a plurality of secondary battery cells each having a measureable temperature and each spaced apart from an adjacent one of the secondary battery cells to define a cooling channel therebetween. The plurality of cells includes a first one of the cells having a measureable first temperature and a terminal one of the cells having a measureable terminal temperature and separated from the first one of the cells by at least one other of the cells. The module includes a fluid flowable within each of the cooling channels and in thermal energy exchange relationship with each of the cells, and a housing defining an inlet channel disposed in fluid flow communication with each of the cooling channels and configured for directing fluid flow uniformly to each of the cooling channels, and further defining a plurality of inlet ports in fluid flow communication with the inlet channel.Type: ApplicationFiled: April 5, 2010Publication date: October 6, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Bahram Khalighi, Kuo-Huey Chen, Taeyoung Han
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Publication number: 20110206965Abstract: A heat pipe is described. The heat pipe includes a heat pipe body containing a working fluid; and a louvered cooling fin adjacent to one end of the heat pipe body, the louvered cooling fin extending outward from a surface of the heat pipe body. Air-cooled battery packs containing the heat pipe are also described.Type: ApplicationFiled: October 28, 2010Publication date: August 25, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Taeyoung Han, Kuo-Huey Chen, Bahram Khalighi
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Patent number: 7874610Abstract: A drag reduction device for a motor vehicle is provided that includes a substantially flat plate member preferably rotatably connected to a tailgate assembly. The tailgate assembly has at least one, but preferably two panels defining a cavity. The plate member can be selectively positioned at a first position and a second, third, or fourth position. When in the first position, the plate member is inside the cavity. In the second position, the plate member is substantially vertical, and partially extending outside the cavity. In the third position, the plate member is extending forward, preferably in a horizontal orientation outside the cavity. When in the fourth position, the plate member is extending rearward, preferably in a horizontal orientation outside the cavity. The plate member is of sufficient length when in the second, third, and fourth positions to thereby reduce the coefficient of drag and lift on the vehicle.Type: GrantFiled: June 22, 2007Date of Patent: January 25, 2011Assignee: GM Global Technology Operations LLCInventor: Bahram Khalighi
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Patent number: 7845709Abstract: A vehicle flow trip, includes a moveable body portion in physical communication with a vehicle body, and an actuator comprising an active material in operative communication with the vehicle body and the moveable body portion; wherein the active material undergoes a change in a property upon receipt of an activation signal, wherein the change in a property is effective to displace the moveable body portion from either an original position or a deployed position in an airflow stream to the other of the original or the deployed position through motion of the actuator.Type: GrantFiled: May 7, 2007Date of Patent: December 7, 2010Assignee: GM Global Technology Operations, Inc.Inventors: Alan L. Browne, Nancy L. Johnson, Guillermo A. Herrera, Geoffrey P. Mc Knight, Christopher P. Henry, Andrew C. Keefe, Bahram Khalighi, Douglas M. Smick
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Publication number: 20080315623Abstract: A drag reduction device for a motor vehicle is provided that includes a substantially flat plate member preferably rotatably connected to a tailgate assembly. The tailgate assembly has at least one, but preferably two panels defining a cavity. The plate member can be selectively positioned at a first position and a second, third, or forth position. When in the first position, the plate member is inside the cavity. In the second position, the plate member is substantially vertical, and partially extending outside the cavity. In the third position, the plate member is extending forward, preferably in a horizontal orientation outside the cavity. When in the fourth position, the plate member is extending rearward, preferably in a horizontal orientation outside the cavity. The plate member is of sufficient length when in the second, third, and fourth positions to thereby reduce the coefficient of drag and lift on the vehicle.Type: ApplicationFiled: June 22, 2007Publication date: December 25, 2008Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventor: Bahram Khalighi
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Publication number: 20080100071Abstract: A vehicle flow trip, includes a moveable body portion in physical communication with a vehicle body, and an actuator comprising an active material in operative communication with the vehicle body and the moveable body portion; wherein the active material undergoes a change in a property upon receipt of an activation signal, wherein the change in a property is effective to displace the moveable body portion from either an original position or a deployed position in an airflow stream to the other of the original or the deployed position through motion of the actuator.Type: ApplicationFiled: May 7, 2007Publication date: May 1, 2008Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Alan L. Browne, Nancy L. Johnson, Guillermo A. Herrera, Geoffrey P. McKnight, Christopher P. Henry, Andrew C. Keefe, Bahram Khalighi, Douglas M. Smick
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Patent number: 7178395Abstract: A system for controlling fluid flow about a vehicle. The system comprises a fluid flow control device, an obstacle sensor for detecting obstacles, and a controller. The fluid flow control device has a body with at least one surface and an actuation means in operative communication with the surface. The actuation means is operative to alter at least one attribute of the fluid flow control device in response to a control signal. The controller has control logic for generating the control signal in response to the obstacle sensor.Type: GrantFiled: November 5, 2004Date of Patent: February 20, 2007Assignee: General Motors CorporationInventors: Alan L. Browne, Nancy L. Johnson, Tadge J. Juechter, Edward D. Moss, Jan H. Aase, Thomas H. Froling, Gary L. Jones, Bahram Khalighi, Constantinos A. Koromilas, Harlan W. Charles, Geoffrey P. McKnight, William Barvosa-Carter, Leslie A. Momoda, Franz K. Schenkel, Lawrence E. Peruski, Jeffrey M. Pleune
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Patent number: 7055638Abstract: An air curtain (jet flow) replaces the conventional air-diverting baffle on the underside of a vehicle's front engine compartment to reduce drag and increase volumetric air flow for cooling.Type: GrantFiled: January 23, 2004Date of Patent: June 6, 2006Assignee: General Motors CorporationInventors: Bahram Khalighi, Sanjay Kumarasamy