Patents by Inventor Silva Hiti

Silva Hiti 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).

  • Publication number: 20240083276
    Abstract: Advance temperature control of charging station components is provided. A system can identify a first time at which an electric vehicle arrives at a charging station to charge the electric vehicle. The system can determine, based at least in part on the first time and a temperature of a component of the charging station, a second time prior to arrival of the electric vehicle at the charging station at which to activate a cooling system of the charging station. The system can provide an instruction to activate the cooling system at the second time to lower the temperature of the component of the charging station by the first time at which the electric vehicle arrives at the charging station to charge the electric vehicle.
    Type: Application
    Filed: September 8, 2022
    Publication date: March 14, 2024
    Inventors: Michael Rosenblatt, Silva Hiti
  • Patent number: 11923713
    Abstract: Various disclosed embodiments include illustrative apparatuses and methods for performing vehicle-to-vehicle and/or vehicle-to-load charging. In an illustrative embodiment, an apparatus includes a multi-function DC power unit and an interface unit configured to perform battery recharging between a donor battery-powered device and a receiver battery-powered device. The interface unit is configured to removably receive the multi-function DC power unit.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: March 5, 2024
    Assignee: Rivian IP Holdings, LLC
    Inventors: Tyler Erikson, Steven Schulz, Kyle Underhill, Silva Hiti
  • Publication number: 20240042881
    Abstract: Various disclosed embodiments include illustrative DC bus charge modules, V2X charging devices, and methods for pre-charging a V2X charging device. An illustrative direct current (DC) bus charge module includes a DC boost converter configured to: apply an output DC voltage from the DC boost converter and having a first voltage level to a DC bus cable with the DC bus cable disconnected from a first DC voltage source; and charge an electrical charge storage device that is electrically connectable to the DC bus cable with an output DC voltage from the DC boost converter and having a second voltage level that is different from the first voltage level with the DC bus cable disconnected from the first DC voltage source.
    Type: Application
    Filed: September 20, 2021
    Publication date: February 8, 2024
    Inventors: Steven E. Schulz, Silva Hiti, Tyler J. Erikson, Kyle R. Underhill
  • Patent number: 11890951
    Abstract: Various disclosed embodiments include illustrative charging systems, electrical dispensers, dispenser chains, methods of charging a vehicle, and methods of providing charging power to a vehicle. A charging system includes a power cabinet having at least one direct current (DC) power module. The charging system also includes at least one dispenser chain, each dispenser chain being electrically couplable to a respective DC power module. Each dispenser chain includes dispensers that are electrically couplable with each other in series and that are configured to dispense electrical power, each of the dispensers being controllable such that electrical power is dispensable by only one dispenser in its dispenser chain at a time.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: February 6, 2024
    Assignee: Rivian IP Holdings, LLC
    Inventors: Tyler Erikson, Silva Hiti, Kyle Underhill
  • Patent number: 11868927
    Abstract: A system includes a computer processor configured to receive a vehicle identifier and a charging power dispenser identifier from a vehicle coupled to a specific charging power dispenser of a charging power dispenser chain. The system also includes a control program being configured to run on the computer processor, the control program being configured to determine a time to deliver power to the vehicle and an amount of power to deliver to the vehicle, the control program being further configured to send to a communication hub of a power cabinet electrically coupled to the charging power dispenser chain the time to deliver power to the vehicle, the amount of power to deliver to the vehicle, the vehicle identifier, and the charging power dispenser identifier.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: January 9, 2024
    Assignee: Rivian IP Holdings, LLC
    Inventors: Tyler Erikson, Silva Hiti, Kyle Underhill
  • Publication number: 20230387812
    Abstract: Systems and methods for controlling a dual active bridge converter are disclosed herein. An environmental condition associated with an electric charger for an electric vehicle may be determined, where the electric charger comprises a dual active bridge converter. Based on the environmental condition associated with the electric charger, the dual active bridge converter may be caused to enter a heat generation mode that causes the dual active bridge converter to generate heat to ameliorate the environmental condition associated with the electric charger.
    Type: Application
    Filed: May 26, 2022
    Publication date: November 30, 2023
    Inventors: Steven Schulz, Zahra Mohajerani, Tyler Erikson, Silva Hiti
  • Patent number: 11827113
    Abstract: A charge coupler adapted to be coupled to a charging inlet of an electric vehicle, the charge coupler including: a housing including a first portion adapted to be disposed around a first plurality of contacts and a second portion adapted to be disposed around a second plurality of contacts; a conductive member disposed between the first portion of the housing and the second portion of the housing; and a control system coupled to the conductive member and operable for sensing a break in the conductive member indicating damage to one or more of the first portion of the housing and the second portion of the housing or that the second portion of the housing is detached from the first portion of the housing. Optionally, the conductive member includes a conductive loop disposed around an inner periphery of the housing, the first plurality of contacts, and the second plurality of contacts.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: November 28, 2023
    Assignee: Rivian IP Holdings, LLC
    Inventors: Kyle Robert Underhill, Steven Schulz, Silva Hiti, Tyler Erikson
  • Patent number: 11802919
    Abstract: Various disclosed embodiments include illustrative systems for remotely testing continuity of electrical wiring, electrical vehicle charging systems, and charge couplers for electrical vehicle charging systems. In an illustrative embodiment, a system for remotely testing continuity of electrical wiring includes a signal generator configured to generate a signal having a predetermined frequency. A controlled impedance network is configured to attenuate the signal. The controlled impedance network is electrically connectable toward a first end of electrical wiring that terminates at a termination at the first end and that is electrically connectable at a second end to the signal generator to carry the signal. A signal detector is configured to detect the signal.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: October 31, 2023
    Assignee: Rivian IP Holdings, LLC
    Inventors: Kyle R. Underhill, Steven E. Schulz, Silva Hiti, Tyler J. Erikson
  • Publication number: 20230322085
    Abstract: Various disclosed embodiments include illustrative controllers, dual power inverter modules, and electric vehicles. In an illustrative embodiment, a controller includes one or more processors associated with a first and second power inverter for the drive unit. Computer-readable media for the one or more processors are each configured to store computer-executable instructions configured to cause the one or more processors to apply a same fault action to the first power inverter and the second power inverter responsive to a fault associated with an inverter chosen from the first power inverter and the second power inverter, wherein the same fault action includes applying equalized torque to each axle operatively coupled to the drive unit.
    Type: Application
    Filed: June 13, 2023
    Publication date: October 12, 2023
    Inventors: Richard M. Breese, Brian N. Harries, Silva Hiti, Daniel L. Kowalewski, Steven E. Schulz, David Tang
  • Patent number: 11745604
    Abstract: A charging dispenser includes a direct current (DC) electrical power input, a DC electrical power pass through output, and a DC electrical power charging output. The charging dispenser also includes a switching unit coupled to the DC electrical power input, the DC electrical power pass through output, and the DC electrical power charging output. Further, the charging dispenser includes a controller configured to provide control signals to the switching unit, the switching unit being configured, responsive to the control signals, to selectively electrically disconnect the DC electrical power input from the DC electrical power pass through output and electrically connect the DC electrical power input to the DC electrical power charging output of the charging dispenser and to selectively electrically connect the DC electrical power input to the DC electrical power pass through output and electrically disconnect the DC electrical power input from the DC electrical power charging output of the charging dispenser.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: September 5, 2023
    Assignee: Rivian IP Holdings, LLC
    Inventors: Tyler Erikson, Silva Hiti, Kyle Underhill
  • Publication number: 20230271503
    Abstract: An illustrative dual power inverter module includes a detection circuit configured to detect loss of low voltage DC electrical power supplied to a controller for a first power inverter and a second power inverter of a drive unit for an electric vehicle. A first backup power circuit is associated with the first power inverter and a second backup power circuit is associated with the second power inverter. Each backup power circuit is configured to convert high voltage DC electrical power to low voltage DC electrical power responsive to detection of loss of low voltage DC electrical power supplied to the controller. Three-phase short circuitry is configured to apply a same fault action to the first power inverter and the second power inverter responsive to detection of loss of low voltage DC electrical power supplied to the controller, wherein the same fault action includes applying equalized torque to each axle operatively coupled to the drive unit.
    Type: Application
    Filed: May 10, 2023
    Publication date: August 31, 2023
    Inventors: Steven E. Schulz, David Tang, Silva Hiti, Richard M. Breese
  • Patent number: 11722089
    Abstract: A controller includes a first processor for a first power inverter. Computer-readable media is configured to store computer-executable instructions configured to cause the first processor to: generate a first clock signal and a second clock signal; identify a pulse width modulation method of the first power inverter and a pulse width modulation method of a second power inverter; identify and compare a switching frequency of the first power inverter and a switching frequency of the second power inverter; determine an optimized phase shift between the first power inverter and the second power inverter responsive to the pulse width modulation method of the first power inverter and the pulse width modulation method of the second power inverter and the switching frequency of the first power inverter and the switching frequency of the second power inverter; and synchronize the optimized phase shift between the first power inverter and the second power inverter.
    Type: Grant
    Filed: November 16, 2022
    Date of Patent: August 8, 2023
    Assignee: Rivian IP Holdings, LLC
    Inventors: Steven E. Schulz, David Tang, Daniel L. Kowalewski, Silva Hiti
  • Patent number: 11712967
    Abstract: Various disclosed embodiments include illustrative controllers, dual power inverter modules, and electric vehicles. In an illustrative embodiment, a controller includes one or more processors associated with a first and second power inverter for the drive unit. Computer-readable media for the one or more processors are each configured to store computer-executable instructions configured to cause the one or more processors to apply a same fault action to the first power inverter and the second power inverter responsive to a fault associated with an inverter chosen from the first power inverter and the second power inverter, wherein the same fault action includes applying equalized torque to each axle operatively coupled to the drive unit.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: August 1, 2023
    Assignee: Rivian IP Holdings, LLC
    Inventors: Richard M. Breese, Brian N. Harries, Silva Hiti, Daniel L. Kowalewski, Steven E. Schulz, David Tang
  • Patent number: 11673478
    Abstract: An illustrative drive unit for an electric vehicle includes a first electrical motor, a first axle mechanically couplable to the first electrical motor, a second electrical motor, a second axle mechanically couplable to the second electrical motor, and a dual power inverter module electrically couplable to a source of high voltage DC electrical power. The dual power inverter module includes: a first inverter configured to convert the high voltage DC electrical power to three phase, high voltage AC electrical power and electrically couplable to provide the three phase, high voltage AC electrical power to the first electrical motor; a second inverter configured to convert the high voltage DC electrical power to three phase, high voltage AC electrical power and electrically couplable to provide the three phase, high voltage AC electrical power to the second electrical motor; and a common controller configured to control the first inverter and the second inverter.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: June 13, 2023
    Assignee: Rivian IP Holdings, LLC
    Inventors: Young Doo, Steven E. Schulz, Silva Hiti, Henry Huang
  • Patent number: 11673473
    Abstract: An illustrative dual power inverter module includes a detection circuit configured to detect loss of low voltage DC electrical power supplied to a controller for a first power inverter and a second power inverter of a drive unit for an electric vehicle. A first backup power circuit is associated with the first power inverter and a second backup power circuit is associated with the second power inverter. Each backup power circuit is configured to convert high voltage DC electrical power to low voltage DC electrical power responsive to detection of loss of low voltage DC electrical power supplied to the controller. Three-phase short circuitry is configured to apply a same fault action to the first power inverter and the second power inverter responsive to detection of loss of low voltage DC electrical power supplied to the controller, wherein the same fault action includes applying equalized torque to each axle operatively coupled to the drive unit.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: June 13, 2023
    Assignee: Rivian IP Holdings, LLC
    Inventors: Steven E. Schulz, David Tang, Silva Hiti, Richard M. Breese
  • Publication number: 20230135040
    Abstract: In an illustrative embodiment, a direct current (DC) fast charger (DCFC) controller unit includes a controller. The controller includes a processor and computer-readable media. The computer-readable media is configured to store computer-executable instructions configured to cause the processor to: receive a maximum charge time duration to charge at least one battery to a desired state of charge responsive to an increased efficiency charge mode being enabled; determine an amount of energy used in a plurality of charge cycles for charging the at least one battery to the desired state of charge with charge time durations no longer than the maximum charge time duration; select a charge cycle for charging the at least one battery to the desired state of charge with a lowest amount of energy used; and cause the at least one battery to be charged with the selected charge cycle.
    Type: Application
    Filed: November 1, 2021
    Publication date: May 4, 2023
    Inventors: Steven E. Schulz, Silva Hiti
  • Patent number: 11628739
    Abstract: A charging system includes a plurality of power charging cabinets, each power charging cabinet being configured with a plurality of electrical power outputs. The charging system also includes at least one power dispenser chain coupled to at least one of the plurality of electrical power outputs, each of the power dispenser chains having more than one addressable power dispenser electrically coupled thereto and each of the power dispensers being configured to be addressed based on a vehicle identifier of a vehicle coupled to an addressed power dispenser, each of the power dispensers also having a controller configured to control electrical power delivery to a destination chosen from a charging power output of the power dispenser and to another power dispenser in the power dispenser chain. The charging system further includes a central control system configured to communicate with controllers of the power dispensers of the at least one power dispenser chain.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: April 18, 2023
    Assignee: Rivian IP Holdings, LLC
    Inventors: Tyler Erikson, Silva Hiti, Kyle Underhill
  • Publication number: 20230070157
    Abstract: A controller includes a first processor for a first power inverter. Computer-readable media is configured to store computer-executable instructions configured to cause the first processor to: generate a first clock signal and a second clock signal; identify a pulse width modulation method of the first power inverter and a pulse width modulation method of a second power inverter; identify and compare a switching frequency of the first power inverter and a switching frequency of the second power inverter; determine an optimized phase shift between the first power inverter and the second power inverter responsive to the pulse width modulation method of the first power inverter and the pulse width modulation method of the second power inverter and the switching frequency of the first power inverter and the switching frequency of the second power inverter; and synchronize the optimized phase shift between the first power inverter and the second power inverter.
    Type: Application
    Filed: November 16, 2022
    Publication date: March 9, 2023
    Inventors: Steven E. Schulz, David Tang, Daniel L. Kowalewski, Silva Hiti
  • Patent number: 11575330
    Abstract: An illustrative dual power inverter module includes a DC link capacitor electrically connectable to a source of high voltage direct current (DC) electrical power. A first power inverter is electrically connectable to the DC link capacitor and configured to convert high voltage DC electrical power to three phase high voltage alternating current (AC) electrical power and is configured to supply the three phase high voltage AC electrical power to a first electric motor. A second power inverter is electrically connectable to the DC link capacitor and configured to convert high voltage DC electrical power to three phase high voltage AC electrical power and is configured to supply the three phase high voltage AC electrical power to a second electric motor. A common controller is electrically connectable to the first power inverter and the second power inverter. The common controller is configured to control the first power inverter and the second power inverter.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: February 7, 2023
    Assignee: Rivian IP Holdings, LLC
    Inventors: Steven E. Schulz, Daniel L. Kowalewski, Silva Hiti, David Tang, Young Doo
  • Publication number: 20230034739
    Abstract: An illustrative drive unit for an electric vehicle includes a first electrical motor, a first axle mechanically couplable to the first electrical motor, a second electrical motor, a second axle mechanically couplable to the second electrical motor, and a dual power inverter module electrically couplable to a source of high voltage DC electrical power. The dual power inverter module includes: a first inverter configured to convert the high voltage DC electrical power to three phase, high voltage AC electrical power and electrically couplable to provide the three phase, high voltage AC electrical power to the first electrical motor; a second inverter configured to convert the high voltage DC electrical power to three phase, high voltage AC electrical power and electrically couplable to provide the three phase, high voltage AC electrical power to the second electrical motor; and a common controller configured to control the first inverter and the second inverter.
    Type: Application
    Filed: July 29, 2021
    Publication date: February 2, 2023
    Inventors: Young Doo, Steven E. Schulz, Silva Hiti, Henry Huang