Patents Assigned to Atieva, Inc.
  • Publication number: 20210276425
    Abstract: A power distribution system is provided that ensures that a car is able to operate safely in an autonomous mode. The system includes multiple power rails, including a pair of safety critical power rails. Associated with each safety critical power rail is a safety switch, vehicle sensors (e.g., vehicle location and obstacle sensors), vehicle actuators (e.g., braking and steering actuators) and an autonomous control unit. If a fault is detected during vehicle initialization or general operation, the safety switch which detected the fault opens and that particular power rail is decoupled from the general purpose power rail as well as the remaining safety critical power rail. The remaining safety critical power rail is then able to provide power to a sufficient number of sensors, actuators and controllers to allow the car to safely and autonomously complete an emergency stop on the side of the road.
    Type: Application
    Filed: March 6, 2020
    Publication date: September 9, 2021
    Applicant: Atieva, Inc.
    Inventors: Jean-Philippe Gauthier, Richard Biskup, Thomas Joel Huber
  • Publication number: 20210277690
    Abstract: A car door handle that lies flush with the car door exterior surface prior to engagement is provided. Once engaged, the car door handle rotates out and away from the door. After the handle is fully deployed, a grip-through loop is presented to the user, thus simplifying door control.
    Type: Application
    Filed: March 6, 2020
    Publication date: September 9, 2021
    Applicant: Atieva, Inc.
    Inventor: Axel Boris Vollmer
  • Patent number: 11025113
    Abstract: A hybrid rotor assembly is provided. The assembly utilizes two different types of magnets within the lamination cavities of the lamination stack: sintered permanent magnets and bonded magnets.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: June 1, 2021
    Assignee: Atieva, Inc.
    Inventor: Emad Dlala
  • Patent number: 11021073
    Abstract: A power management system for an electric vehicle is provided which maintains power to the various vehicle ‘always-on’ components and subsystems during periods of vehicle non-use without requiring the low voltage battery to undergo frequent charge/discharge cycling. The system uses a secondary DC/DC converter that has a lower output voltage, and operates at a higher efficiency, then the primary DC/DC converter. As a result of this system, the life of the low voltage battery is prolonged and power consumption efficiency is improved, thereby minimizing range loss while the car is parked.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: June 1, 2021
    Assignee: Atieva, Inc.
    Inventors: Jean-Philippe Gauthier, Matthew Djock, Richard Biskup
  • Patent number: 11005337
    Abstract: A gear assembly is provided that simplifies the integration of a differential assembly into the hollow rotor of an electric motor. The gear assembly utilizes a hollow cross member that includes a central portion and a plurality of hollow extension members onto which the gears are mounted. Within each of the hollow extension members is a pin. When the pins are withdrawn, the assembly fits unimpeded within the hollow rotor. When the pins are partially extended out of the corresponding extension members, the ends of the pins fit within apertures in the rotor. A plug fits within a centrally located thru-hole in the central portion of the hollow cross member, thereby locking the pins in the extended position and locking the gear assembly in place.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: May 11, 2021
    Assignee: Atieva, Inc.
    Inventors: Shun-Cheng Hung, Jeremy Mayer, Balazs Palfai, Michael David Kennedy
  • Patent number: 10914531
    Abstract: The present invention relates to a heat-sink base provided with heat-sink fin portions, it manufacturing method and a motor provided with the heat-sink base. The base is produced by pouring cast metal into a mold cavity to replace a pattern having a predetermined sublimation temperature. The base includes a preformed heat-sink member comprising a plurality of heat-sink fin portions and at least one anchor portion embedded at least partially in the pattern, and a base body comprising an enclosed base portion and a holder portion for receiving and holding the at least one anchor portion. By virtue of the invented method, the heat-sink member having an extremely thin thickness can be mounted on the base body and the overall surface area of the heat-sink base is increased considerably.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: February 9, 2021
    Assignee: Atieva, Inc.
    Inventor: Chia-Ming Chuang
  • Patent number: 10901019
    Abstract: A battery pack monitoring apparatus is provided. The apparatus includes a voltage measurement system configured to couple to opposed ends of each of a plurality of blocks of a battery pack and to measure voltages thereof, the blocks being coupled in series by interconnects each having an interconnect resistance. The voltage measurement system is configured to derive an internal resistance of each of the plurality of blocks based upon the voltages of the opposed ends of each of the plurality of blocks and based upon a measurement of current of the battery pack and derive the interconnect resistance of each of the interconnects based upon the voltages of the opposed ends of each of the plurality of blocks and based upon the measurement of current.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 26, 2021
    Assignee: Atieva, Inc.
    Inventors: Richard J. Biskup, Sam Chang
  • Patent number: 10903701
    Abstract: A method of manufacturing an electric motor that includes a plurality of structural cooling features is provided, where the electric motor utilizes axial cooling channels integral to the stator teeth, thus allowing direct contact between the circulating coolant and the lamination stack. A coolant manifold assembly, incorporated into the stator between left and right stator portions, provides a means of distributing coolant to the axial cooling channels.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: January 26, 2021
    Assignee: Atieva, Inc.
    Inventors: Emad Dlala, Richard J. Biskup, David Moseley, Aberto Bassanese, Balaji Maniam, Jeremy Mayer
  • Publication number: 20210010766
    Abstract: A multi-mode vehicle thermal management system is provided that optimizes drive train operating efficiency by thermally de-coupling the drive train thermal control loop from other vehicle thermal control loops during initial vehicle start-up when drive train coolant/lubricant is cold, thus taking into account the temperature dependence of the coolant/lubricant characteristics (e.g., viscosity and density) and the effects of these characteristics on viscous drag and bearing/seal preload force.
    Type: Application
    Filed: July 8, 2019
    Publication date: January 14, 2021
    Applicant: Atieva, Inc.
    Inventor: Emad Dlala
  • Publication number: 20200412190
    Abstract: A hybrid rotor assembly is provided. The assembly utilizes two different types of magnets within the lamination cavities of the lamination stack: sintered permanent magnets and bonded magnets.
    Type: Application
    Filed: June 26, 2019
    Publication date: December 31, 2020
    Applicant: Atieva, Inc.
    Inventor: Emad Dlala
  • Publication number: 20200412195
    Abstract: A stator assembly is provided that simplifies the process of coupling the stator windings to the winding lugs. The stator assembly includes a pre-fabricated connector that is attached to the stator via a plurality of stator winding terminations. The pre-fabricated connector includes a plurality of electrically conductive termination coupling members that form conductive pathways between at least a portion of the stator winding terminations and a plurality of bus bars, where each of the bus bars includes a lug. The pre-fabricated connector may also include a second plurality of electrically conductive termination coupling members that form conductive pathways between at least a second portion of the stator winding terminations and a plurality of lugless bus bars. An electrically insulating material is overlaid over portions of the connector ring, thereby preventing contact or partial discharge between the various bus bars.
    Type: Application
    Filed: June 26, 2019
    Publication date: December 31, 2020
    Applicant: Atieva, Inc.
    Inventors: Jeremy Mayer, Emad Dlala
  • Patent number: 10797562
    Abstract: A powertrain utilizing an active core motor with coaxially aligned planetary-differential-planetary gear assemblies is provided.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: October 6, 2020
    Assignee: Atieva, Inc.
    Inventors: Emad Dlala, Shun-Cheng Hung, Jeremy Mayer, Balazs Palfai, Michael Tebbe
  • Patent number: 10778051
    Abstract: A rotor fabrication method is provided. The rotor uses pre-fabricated conductive rotor bars in which the ends have been shaped and sized to fit within corresponding end cap receptacles. After assembly, the structure is compressed, thereby achieving mechanical and electrical coupling between the conductive rotor bars and the end caps. Locking members disposed at either end of the assembly maintain the desired level of axial compressive force on the structure.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: September 15, 2020
    Assignee: ATIEVA, INC.
    Inventors: Stephen W. Simons, Jeremy Mayer
  • Publication number: 20200231048
    Abstract: A powertrain backlash control system is provided for use with an electric vehicle (EV), where the EV uses at least one powertrain to provide forward vehicle motion and at least one additional powertrain to provide rearward vehicle motion. The control system eliminates backlash by maintaining a positive motor torque within each powertrain when the vehicle is in-gear, thus applying a minimum forward torque demand to the powertrain dedicated to forward motion and applying a minimum reverse torque demand to the powertrain dedicated to rearward motion.
    Type: Application
    Filed: January 17, 2019
    Publication date: July 23, 2020
    Applicant: Atieva, Inc.
    Inventor: Jean-Philippe Gauthier
  • Patent number: 10690725
    Abstract: A battery pack management system adjusts the relative state-of-charge of respective battery blocks in a battery pack to equalize (i.e., align, balance or otherwise make similar) the peak battery block voltages (i.e., maximum or “upper peak” battery block voltages when the battery pack is being charged and/or minimum or “lower peak” battery block voltages when the battery is being discharged). Upon detecting an anomalous battery block that exhibits outlier upper and lower peak voltages, the battery pack management system adjusts the relative state of charge of respective battery blocks to center their respective upper and lower peak voltages between operating limits, thus maximizing the operating margin of the battery pack as a whole.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: June 23, 2020
    Assignee: ATIEVA, INC.
    Inventors: Steven Diamond, Gabriel Risk, Stanley Hu, Albert Shih-Young Liu, Martin Helliwell
  • Patent number: 10683920
    Abstract: A torque limiting clutch assembly is provided that is mounted between the motor housing and the ring gear of a planetary gear assembly. During normal operation, the clutch assembly prevents rotation of the ring gear relative to the motor housing. In the event of a severe loading condition, the clutch assembly slips, thereby preventing excessive torque from being applied to the drive train and potentially damaging one or more drive train components.
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: June 16, 2020
    Assignee: ATIEVA, INC.
    Inventors: Balazs Palfai, Pablo Ramaswamy, Michael Tebbe, Richard J. Biskup
  • Publication number: 20200180432
    Abstract: A feedback system is provided for use with an electric vehicle's accelerator pedal, where the pedal is adjustable between a fully depressed position and a fully released position, and where a neutral pedal position is located between the fully depressed and fully released positions. When the pedal is located at the neutral position, the vehicle power train does not apply any torque; when the pedal is located between the neutral position and the fully depressed position, the vehicle power train applies a driving torque; and when the pedal is located between the neutral position and the fully released position, the vehicle power train applies a braking torque. The feedback system automatically sets the fully released position for the accelerator pedal based on the available regenerative braking torque.
    Type: Application
    Filed: December 11, 2018
    Publication date: June 11, 2020
    Applicant: Atieva, Inc.
    Inventor: Jean-Philippe Gauthier
  • Patent number: 10637110
    Abstract: A battery pack has bus bars at one end, freeing the other end of the battery pack for cooling or other arrangements. A plurality of battery cells oriented in the same manner in the battery pack has first terminals of the battery cells at first ends of the battery cells. Portions of second terminals of the battery cells are at the first ends of the battery cells. The first ends of the battery cells are in a coplanar arrangement. A plurality of bus bars is assembled proximate to the first ends of the battery cells. The bus bars are coupled to the first terminals and the second terminals of the battery cells at the first ends of the battery cells to place the battery cells in a series connection and a parallel connection.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: April 28, 2020
    Assignee: ATIEVA, INC.
    Inventors: Benson Tsai, Richard J. Biskup, James Jan, Peter Rawlinson
  • Patent number: 10634772
    Abstract: A light detection and ranging (lidar) system is provided that is incorporated into a vehicle and which is configured to efficiently adapt to varying road conditions as well as potential obstacles that may lie in the vehicle's pathway. The system employs a spatial light modulator (SLM) to create a plurality of illumination zones within the system's field of view. The SLM allows the lidar system to alter the size of each illumination zone as well as the light intensity within each of the zones as required by road conditions and potential obstacles.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: April 28, 2020
    Assignee: ATIEVA, INC.
    Inventors: Wiebke Eckstein, Hans-Christoph Eckstein, Eric Magnus Bach
  • Publication number: 20200127533
    Abstract: A gear assembly is provided that simplifies the integration of a differential assembly into the hollow rotor of an electric motor. The gear assembly utilizes a hollow cross member that includes a central portion and a plurality of hollow extension members onto which the gears are mounted. Within each of the hollow extension members is a pin. When the pins are withdrawn, the assembly fits unimpeded within the hollow rotor. When the pins are partially extended out of the corresponding extension members, the ends of the pins fit within apertures in the rotor. A plug fits within a centrally located thru-hole in the central portion of the hollow cross member, thereby locking the pins in the extended position and locking the gear assembly in place.
    Type: Application
    Filed: November 7, 2018
    Publication date: April 23, 2020
    Applicant: Atieva, Inc.
    Inventors: Shun-Cheng Hung, Jeremy Mayer, Balazs Palfai, Michael David Kennedy