Patents by Inventor Pascal David

Pascal David 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: 12615001
    Abstract: A system including: first switches to receive positive DC power to generate the AC power, a positive DC power rail to provide the positive DC power to the first switches, positive DC power tabs connected to the positive DC power rail, second switches to receive negative DC power to generate the AC power, a negative DC power rail to provide the negative DC power to the second switches, negative DC power tabs connected to the negative DC power rail; and AC power tabs to receive the AC power from the first switches and the second switches, wherein the positive DC power rail is provided in a first plane on a first side of the first switches and the second switches, and the negative DC power rail is provided in a second plane on a second side of the first switches and the second switches and opposite to the first side.
    Type: Grant
    Filed: March 28, 2024
    Date of Patent: April 28, 2026
    Assignee: BorgWarner Luxembourg Automotive Systems SA
    Inventors: Eric Bourniche, Arnaud Leblay, Pascal David
  • Patent number: 12592598
    Abstract: A system includes a motor including: a stator; and a rotor including: a rotor shaft; a lamination stack including: a lamination yoke including a recess in an outermost surface of the lamination yoke and a first groove in the outermost surface of the lamination yoke; a lamination shoe in the recess of the lamination yoke, the lamination shoe including a second groove in an outermost surface of the lamination shoe; and one or more first magnets in the recess of the lamination yoke, each first magnet of the one or more first magnets including a first magnet groove, wherein the first groove of the lamination yoke, the second groove of the lamination shoe, and the first magnet groove are aligned along a first circumference of the lamination stack as a first lamination stack groove; and one or more carbon rings in the first lamination stack groove.
    Type: Grant
    Filed: March 22, 2024
    Date of Patent: March 31, 2026
    Assignee: BorgWarner Luxembourg Automotive Systems SA
    Inventors: Pascal David, Eric Bourniche
  • Publication number: 20250309810
    Abstract: A system including: first switches to receive positive DC power to generate the AC power, a positive DC power rail to provide the positive DC power to the first switches, positive DC power tabs connected to the positive DC power rail, second switches to receive negative DC power to generate the AC power, a negative DC power rail to provide the negative DC power to the second switches, negative DC power tabs connected to the negative DC power rail; and AC power tabs to receive the AC power from the first switches and the second switches, wherein the positive DC power rail is provided in a first plane on a first side of the first switches and the second switches, and the negative DC power rail is provided in a second plane on a second side of the first switches and the second switches and opposite to the first side.
    Type: Application
    Filed: March 28, 2024
    Publication date: October 2, 2025
    Applicant: BorgWarner Luxembourg Automotive Systems SA
    Inventors: Eric BOURNICHE, Arnaud LEBLAY, Pascal DAVID
  • Publication number: 20250300508
    Abstract: A system includes a motor including: a stator; and a rotor including: a rotor shaft; a lamination stack including: a lamination yoke including a recess in an outermost surface of the lamination yoke and a first groove in the outermost surface of the lamination yoke; a lamination shoe in the recess of the lamination yoke, the lamination shoe including a second groove in an outermost surface of the lamination shoe; and one or more first magnets in the recess of the lamination yoke, each first magnet of the one or more first magnets including a first magnet groove, wherein the first groove of the lamination yoke, the second groove of the lamination shoe, and the first magnet groove are aligned along a first circumference of the lamination stack as a first lamination stack groove; and one or more carbon rings in the first lamination stack groove.
    Type: Application
    Filed: March 22, 2024
    Publication date: September 25, 2025
    Applicant: BorgWarner Luxembourg Automotive Systems SA
    Inventors: Pascal DAVID, Eric BOURNICHE
  • Publication number: 20250253729
    Abstract: A system includes a rotor core; a rotor stack extending circumferentially from the rotor core, the rotor stack including: a first end; a second end opposite to the first end; and a first slot in the rotor stack, the first slot extending from the first end to the second end; and a hairpin cooling pipe in the first slot of the rotor stack.
    Type: Application
    Filed: February 6, 2024
    Publication date: August 7, 2025
    Applicant: BorgWarner US Technologies LLC
    Inventors: Eric BOURNICHE, Pascal DAVID
  • Publication number: 20250107050
    Abstract: A system for an electric vehicle includes a power switch configured to convert DC power from a battery to AC power to drive a motor, and a three-dimensionally printed heat sink (3D heat sink) coupled to the power switch.
    Type: Application
    Filed: September 25, 2023
    Publication date: March 27, 2025
    Applicant: Delphi Technologies IP Limited
    Inventors: Eric Bourniche, Pascal David, Arnaud Leblay
  • Patent number: 12101047
    Abstract: A system for a power switch module for an inverter includes a Silicon (Si) power switch configured to pass current in an on state based on an Si gate driving signal, a Silicon Carbide (SiC) power switch configured to pass current in an on state based on an SiC gate driving signal, an Si gate driver configured to provide the Si gate driving signal to operate the Si power switch when a current requirement of the inverter is at or above a threshold, and an SiC gate driver configured to provide the SiC gate driving signal to operate the SiC power switch when the current requirement of the inverter is below the threshold.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: September 24, 2024
    Assignee: Borg Warner Luxembourg Automotive Systems SA
    Inventors: Eric Bourniche, Pascal David
  • Patent number: 11950398
    Abstract: A cooling system for a capacitor may include a housing for the capacitor, the housing comprising of a bottom surface, a top surface, and at least one side surface connecting the bottom surface and the top surface, the housing further including: a bottom inlet manifold and a bottom outlet manifold extending along the bottom surface; an inlet side channel extending along the side surface, the inlet side channel being in fluid communication with the bottom inlet manifold; an outlet side channel extending along the side surface, the outlet side channel being in fluid communication with the bottom outlet manifold; a top inlet manifold extending along the top surface, the top inlet manifold being in fluid communication with the inlet side channel; and a top outlet manifold extending along the top surface, the top outlet manifold being in fluid communication with the outlet side channel.
    Type: Grant
    Filed: January 20, 2022
    Date of Patent: April 2, 2024
    Assignee: BorgWarner Luxembourg Automotive Systems SA
    Inventors: Pascal David, Mark Alan Ebenhart, Marc Cipriano
  • Patent number: 11943903
    Abstract: A cooling system for a capacitor may include a housing for the capacitor, the housing comprising of a bottom surface, a top surface, and at least one side surface connecting the bottom surface and the top surface, the housing further including: a bottom inlet manifold and a bottom outlet manifold extending along the bottom surface; an inlet side channel extending along the side surface, the inlet side channel being in fluid communication with the bottom inlet manifold; an outlet side channel extending along the side surface, the outlet side channel being in fluid communication with the bottom outlet manifold; a top inlet manifold extending along the top surface, the top inlet manifold being in fluid communication with the inlet side channel; and a top outlet manifold extending along the top surface, the top outlet manifold being in fluid communication with the outlet side channel.
    Type: Grant
    Filed: January 20, 2022
    Date of Patent: March 26, 2024
    Assignee: BorgWarner Luxembourg Automotive Systems SA
    Inventors: Pascal David, Mark Alan Ebenhart, Marc Cipriano
  • Publication number: 20230327597
    Abstract: A system for a power switch module for an inverter includes a Silicon (Si) power switch configured to pass current in an on state based on an Si gate driving signal, a Silicon Carbide (SiC) power switch configured to pass current in an on state based on an SiC gate driving signal, an Si gate driver configured to provide the Si gate driving signal to operate the Si power switch when a current requirement of the inverter is at or above a threshold, and an SiC gate driver configured to provide the SiC gate driving signal to operate the SiC power switch when the current requirement of the inverter is below the threshold.
    Type: Application
    Filed: April 11, 2022
    Publication date: October 12, 2023
    Applicant: BorgWarner Luxembourg Automotive Systems SA
    Inventors: Eric BOURNICHE, Pascal DAVID
  • Patent number: 11785737
    Abstract: A cooling system for a capacitor may include a housing for the capacitor, the housing comprising of a bottom surface, a top surface, and at least one side surface connecting the bottom surface and the top surface, the housing further including: a bottom inlet manifold and a bottom outlet manifold extending along the bottom surface; an inlet side channel extending along the side surface, the inlet side channel being in fluid communication with the bottom inlet manifold; an outlet side channel extending along the side surface, the outlet side channel being in fluid communication with the bottom outlet manifold; a top inlet manifold extending along the top surface, the top inlet manifold being in fluid communication with the inlet side channel; and a top outlet manifold extending along the top surface, the top outlet manifold being in fluid communication with the outlet side channel.
    Type: Grant
    Filed: January 20, 2022
    Date of Patent: October 10, 2023
    Assignee: Borg Warner Luxembourg Automotive Systems SA
    Inventors: Pascal David, Mark Alan Ebenhart, Marc Cipriano
  • Publication number: 20230240056
    Abstract: A cooling system for a capacitor may include a housing for the capacitor, the housing comprising of a bottom surface, a top surface, and at least one side surface connecting the bottom surface and the top surface, the housing further including: a bottom inlet manifold and a bottom outlet manifold extending along the bottom surface; an inlet side channel extending along the side surface, the inlet side channel being in fluid communication with the bottom inlet manifold; an outlet side channel extending along the side surface, the outlet side channel being in fluid communication with the bottom outlet manifold; a top inlet manifold extending along the top surface, the top inlet manifold being in fluid communication with the inlet side channel; and a top outlet manifold extending along the top surface, the top outlet manifold being in fluid communication with the outlet side channel.
    Type: Application
    Filed: January 20, 2022
    Publication date: July 27, 2023
    Applicant: BorgWarner Luxembourg Automotive Systems SA
    Inventors: Pascal David, Mark Alan Ebenhart, Marc Cipriano
  • Publication number: 20230232597
    Abstract: A cooling system for a capacitor may include a housing for the capacitor, the housing comprising of a bottom surface, a top surface, and at least one side surface connecting the bottom surface and the top surface, the housing further including: a bottom inlet manifold and a bottom outlet manifold extending along the bottom surface; an inlet side channel extending along the side surface, the inlet side channel being in fluid communication with the bottom inlet manifold; an outlet side channel extending along the side surface, the outlet side channel being in fluid communication with the bottom outlet manifold; a top inlet manifold extending along the top surface, the top inlet manifold being in fluid communication with the inlet side channel; and a top outlet manifold extending along the top surface, the top outlet manifold being in fluid communication with the outlet side channel.
    Type: Application
    Filed: January 20, 2022
    Publication date: July 20, 2023
    Applicant: BorgWarner Luxembourg Automotive Systems SA
    Inventors: Pascal DAVID, Mark Alan EBENHART, Marc CIPRIANO
  • Publication number: 20230232568
    Abstract: A cooling system for a capacitor may include a housing for the capacitor, the housing comprising of a bottom surface, a top surface, and at least one side surface connecting the bottom surface and the top surface, the housing further including: a bottom inlet manifold and a bottom outlet manifold extending along the bottom surface; an inlet side channel extending along the side surface, the inlet side channel being in fluid communication with the bottom inlet manifold; an outlet side channel extending along the side surface, the outlet side channel being in fluid communication with the bottom outlet manifold; a top inlet manifold extending along the top surface, the top inlet manifold being in fluid communication with the inlet side channel; and a top outlet manifold extending along the top surface, the top outlet manifold being in fluid communication with the outlet side channel.
    Type: Application
    Filed: January 20, 2022
    Publication date: July 20, 2023
    Applicant: BorgWarner Luxembourg Automotive Systems SA
    Inventors: Pascal DAVID, Mark Alan EBENHART, Marc CIPRIANO
  • Patent number: 10746210
    Abstract: An assembly of a first element with a second element includes an elongate thin lip belonging to the second element being inserted in an elongate narrow slot formed by three sides of an elongate flat plate fixed in parallel to a flat wall of the first element. At least one element forming a guide is secured to a long side of the elongate flat plate forming an edge of the slot. The element forming a guide includes a sliding surface extending in the continuation of the elongate flat plate and diverging from the flat wall away from the first element. The at least one element forming a guide cooperates with the lip so that the insertion of the lip into the slot begins with the sliding of the lip on the sliding surface and then continues as the lip advances, with progressive insertion of the lip into the slot.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: August 18, 2020
    Assignee: RENAULT s.a.s.
    Inventors: Pascal David, Joseph Bui
  • Patent number: 10259286
    Abstract: A device that controls a temperature of a battery onboard a motor vehicle includes an air-conditioning circuit of the motor vehicle in which circulates, as a first heat-transfer fluid, an air-conditioning fluid. The air-conditioning circuit includes at least one evaporator for direct transfer of heat emitted by the battery to the air-conditioning fluid and a compressor to increase a pressure and a temperature of the air-conditioning fluid. The device also includes a cooling circuit in which circulates, as a second heat-transfer fluid, a cooling fluid. The cooling circuit includes at least one first heat source to heat the cooling fluid and at least one main radiator to cool the cooling fluid that can be short-circuited. The cooling circuit also includes a battery radiator to directly transfer heat conveyed by the hot cooling fluid to the battery when the main radiator of the cooling circuit is short-circuited.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: April 16, 2019
    Assignee: RENAULT s.a.s.
    Inventors: Benoit Janier, Pascal David
  • Patent number: 9982573
    Abstract: A camshaft phaser includes a stator having an inner wall with lobes extending radially inward and a stator flange extending radially outward, the stator flange having a plurality of apertures; a rotor coaxially disposed within the stator, the rotor having vanes interspersed with the lobes defining alternating advance chambers and retard chambers; a plurality of compression limiters extending through the apertures; a front cover which closes one end of the advance and retard chambers; a back cover which closes the other end of the advance and retard chambers; and a plurality of fasteners which extend through the apertures such that the fasteners apply a clamping load which clamps the stator between the front cover and the back cover such that the clamping load is transmitted through the compression limiters.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: May 29, 2018
    Assignee: DELPHI TECHNOLOGIES IP LIMITED
    Inventors: Pascal David, Pierre Kimus, Sebastien Mafrica
  • Publication number: 20170350283
    Abstract: A camshaft phaser includes a stator having an inner wall with lobes extending radially inward and a stator flange extending radially outward, the stator flange having a plurality of apertures; a rotor coaxially disposed within the stator, the rotor having vanes interspersed with the lobes defining alternating advance chambers and retard chambers; a plurality of compression limiters extending through the apertures; a front cover which closes one end of the advance and retard chambers; a back cover which closes the other end of the advance and retard chambers; and a plurality of fasteners which extend through the apertures such that the fasteners apply a clamping load which clamps the stator between the front cover and the back cover such that the clamping load is transmitted through the compression limiters.
    Type: Application
    Filed: June 3, 2016
    Publication date: December 7, 2017
    Inventors: PASCAL DAVID, PIERRE KIMUS, SEBASTIEN MAFRICA
  • Publication number: 20170282676
    Abstract: A device that controls a temperature of a battery onboard a motor vehicle includes an air-conditioning circuit of the motor vehicle in which circulates, as a first heat-transfer fluid, an air-conditioning fluid. The air-conditioning circuit includes at least one evaporator for direct transfer of heat emitted by the battery to the air-conditioning fluid and a compressor to increase a pressure and a temperature of the air-conditioning fluid. The device also includes a cooling circuit in which circulates, as a second heat-transfer fluid, a cooling fluid. The cooling circuit includes at least one first heat source to heat the cooling fluid and at least one main radiator to cool the cooling fluid that can be short-circuited. The cooling circuit also includes a battery radiator to directly transfer heat conveyed by the hot cooling fluid to the battery when the main radiator of the cooling circuit is short-circuited.
    Type: Application
    Filed: July 16, 2015
    Publication date: October 5, 2017
    Applicant: RENAULT s.a.s.
    Inventors: Benoit JANIER, Pascal DAVID
  • Publication number: 20170268387
    Abstract: An internal combustion engine includes a crankshaft rotatable about a crankshaft axis; a camshaft rotatable by the crankshaft about a camshaft axis; an engine cover defining an engine cover volume within the internal combustion engine; a drive member disposed within the engine cover volume which transfers rotational motion from the crankshaft to the camshaft; a camshaft phaser disposed within the engine cover volume which controllably varies the phase relationship between the crankshaft and the camshaft; an actuator which operates the camshaft phaser; and an actuator mount within the engine cover volume which mounts the actuator structurally independent of the engine cover, thereby allowing removal of the engine cover independently of the actuator.
    Type: Application
    Filed: June 1, 2017
    Publication date: September 21, 2017
    Inventors: Pascal David, Pierre Kimus, Sebastien Mafrica