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  • FAULT-TOLERANT LOOP FOR A COMMUNICATION BUS
    Publication number: 20140281079
    Abstract: A communication bus system is provided. The communication bus system includes a communication bus having a plurality of isolatable segments and a bus master coupled to a first end of the communication bus. The bus master is configured to couple to a second end of the communication bus and to decouple from the second end of the communication bus based on a selection signal. A method for operating a communication bus is also disclosed.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: Atieva, Inc.
    Inventor: Atieva, Inc.
  • CONFIGURATION SWITCH FOR A BROADCAST BUS
    Publication number: 20140281078
    Abstract: A bidirectional bus system is provided. The bidirectional bus system includes a plurality of bus slaves configured to couple to a bidirectional bus. Each bus slave of the plurality of bus slaves has a switch operated by a switch control to selectably couple and decouple an upstream portion and a downstream portion of the bidirectional bus relative to the bus slave, with the switch control being powered by activity on the bidirectional bus.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: Atieva, Inc.
    Inventor: Atieva, Inc.
  • CELL BALANCING THROUGH A SWITCHED CAPACITOR LEVEL SHIFTER
    Publication number: 20140266003
    Abstract: A battery management apparatus is provided. The battery management apparatus includes a switched capacitor level shifter having a first port and a second port. The first port is configured to couple to a cell in a battery stack and the second port is configured to couple to a voltage measurement device. The apparatus includes a discharge device coupled to the second port, wherein the discharge device is configured to discharge the cell via the switched capacitor level shifter. A method of managing a battery stack is also included.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Atieva, Inc.
    Inventor: Atieva, Inc.
  • POWER DEVICE TEMPERATURE MONITOR
    Publication number: 20140269831
    Abstract: A power device temperature monitor is provided. The power device temperature monitor includes a power device having a control terminal and an output terminal, where the output terminal is configured to output a current as directed by a voltage of the control terminal. The power device temperature monitor includes an inductor coupled to the output terminal of the power device and an amplifier coupled to the inductor. The power device temperature monitor includes a computing device that receives an output of the amplifier, the computing device is configured to derive a temperature of the power device based upon the output of the amplifier.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Atieva, Inc.
    Inventor: Atieva, Inc.
  • METHOD OF CONNECTING CELL VOLTAGE SENSORS
    Publication number: 20140278174
    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: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Atieva, Inc.
    Inventor: Atieva, Inc.
  • INVERTER WITH PARALLEL POWER DEVICES
    Publication number: 20140266325
    Abstract: A power drive apparatus is provided. The apparatus includes a first switch having a first plurality of power devices arranged in a back to back configuration within adjacent stacked rows of the first switch. The apparatus includes a second switch having a second plurality of power devices arranged in a back to back configuration within adjacent stacked rows of the second switch. A bus is shared with the first switch and the second switch. The apparatus includes a control drive device coupled to a gate of each power device of the first plurality of power devices and each power device of the second plurality of power devices.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Atieva, Inc
    Inventor: Atieva, Inc.
  • BUS BAR FOR BATTERY PACKS
    Publication number: 20140255748
    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 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 one of a series connection, a parallel connection or a series and parallel connection.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 11, 2014
    Applicant: Atieva, Inc.
    Inventor: Atieva, Inc.
  • AUTOMATIC SWITCHOVER FROM CELL VOLTAGE TO INTERCONNECT VOLTAGE MONITORING
    Publication number: 20140272497
    Abstract: A battery assembly is provided. The battery assembly includes a first module having a first plurality of cells and a first voltage measurement device. The battery module includes a sense wire, coupled to a voltage measurement input of the first voltage measurement device and resistively coupled to a terminal of the first plurality of cells. The battery assembly includes a second module having a second plurality of cells and being configured to couple to the first module with the terminal of the first plurality of cells coupling to a terminal of the second plurality of cells via a connector and with the sense wire coupling to the terminal of the second plurality of cells via the connector.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Atieva, Inc.
    Inventor: Atieva, Inc.
  • BIAS CIRCUIT FOR A SWITCHED CAPACITOR LEVEL SHIFTER
    Publication number: 20140266381
    Abstract: A noise resistant switch control circuit is provided. The circuit includes a low pass filter configured to couple to a first terminal of a switch and a first voltage clamp coupled to the low pass filter. The first voltage clamp is configured to couple to a control terminal of the switch and limit a voltage of the control terminal relative to the first terminal to within a first clamping range. The circuit includes a second voltage clamp coupled to an input terminal of the switch control circuit. The second voltage clamp is configured to couple to the control terminal of the switch. The second voltage clamp is further configured to reduce a level of a control voltage coupled to the second voltage clamp. The circuit includes a bias device configured to couple to the control terminal of the switch and to impress a biasing voltage to the control terminal.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Atieva, Inc.
    Inventor: Atieva, Inc.
  • BALANCE RESISTOR AND LOW PASS FILTER
    Publication number: 20140266050
    Abstract: A battery cell balancing and measuring apparatus is provided. The apparatus includes a plurality of terminals having a portion of the terminals grouped as terminal pairs, each terminal of the plurality of terminals operable to couple to a node in a battery stack. Each terminal pair having a capacitor and a switch coupled in parallel with each other, the capacitor and the switch coupled across respective terminal pair. The apparatus includes a plurality of resistors, each resistor of the plurality of resistors coupled to a terminal of the plurality of terminals. Each resistor of the plurality of resistors provides a discharge path for a respective battery cell coupled to a terminal pair via the switch and wherein each resistor of the plurality of resistors provides a low pass filter path for the respective battery cell via the capacitor.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Atieva, Inc.
    Inventor: Atieva, Inc.
  • DUAL VOLTAGE COMMUNICATION BUS
    Publication number: 20140281077
    Abstract: A bidirectional bus system that includes a bus master having a first transmitter coupled to a bidirectional bus. The first transmitter transmits a signal in a first voltage range onto the bus. The bus master has a first receiver coupled to the bus. A bus slave having a second transmitter coupled to the bus is included. The second transmitter transmits a signal in a second voltage range onto the bus, where the bus slave having a second receiver is coupled to the bus. The first receiver is configured to interpret the signal in the first voltage range to indicate an idle state while the second receiver interprets the signal in the first voltage range as indicating data. The second receiver interprets the signal in the second voltage range as indicative of an idle state while the first receiver interprets the signal in the second voltage range as indicating data.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: Atieva, Inc.
    Inventor: Atieva, Inc.
  • Automotive vehicle wheel
    Patent number: D950455
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: May 3, 2022
    Assignee: Atieva, Inc.
    Inventors: Derek N. Jenkins, Alvin Po-Yu Tseng
  • Vehicular front seat
    Patent number: D959160
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: August 2, 2022
    Assignee: Atieva, Inc.
    Inventors: Joann Jung, Derek N. Jenkins, Yuichi Ogura
  • Vehicular key fob
    Patent number: D964298
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: September 20, 2022
    Assignee: Atieva, Inc.
    Inventor: Felix Louis Godard
  • Automotive vehicle body, toy vehicle body replica and/or other replica
    Patent number: D966937
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: October 18, 2022
    Assignee: Atieva Inc.
    Inventors: Derek N. Jenkins, Jiyeon Kim
  • Front portion of automotive vehicle, toy replica and/or other replica
    Patent number: D966959
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: October 18, 2022
    Assignee: Atieva Inc.
    Inventors: Jiyeon Kim, Derek N. Jenkins
  • Vehicular rear lamp assembly
    Patent number: D992158
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: July 11, 2023
    Assignee: Atieva Inc.
    Inventors: Jiyeon Kim, Derek N. Jenkins
  • Automotive wheel
    Patent number: D1005911
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: November 28, 2023
    Assignee: Atieva Inc.
    Inventor: Alvin Po-Yu Tseng
  • Multi-colored, automotive vehicle wheel
    Patent number: D1005914
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: November 28, 2023
    Assignee: Atieva Inc.
    Inventor: Grimaud Gervex
  • Portable charger for electric vehicle
    Patent number: D1022888
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: April 16, 2024
    Assignee: ATIEVA INC.
    Inventor: Alvin Po-Yu Tseng
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