Patents by Inventor Torbjorn Larsson

Torbjorn Larsson 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: 20250249792
    Abstract: Vehicle propulsion using a two-phase electric machine (e.g., using a computerized tool) is enabled. For example, a two-phase electric drivetrain can comprise a plurality of cell-level control units. Each cell-level control unit of the plurality of cell-level control units can respectively comprise one or more battery cells, an h-bridge operable as a cell-level inverter, and a DC/DC converter, in parallel with the h-bridge, that converts battery cell voltage to an output voltage. The plurality of cell-level control units can be arranged into a pair of control unit strings comprising a first control unit string and a second control unit string.
    Type: Application
    Filed: February 1, 2024
    Publication date: August 7, 2025
    Inventors: Torbjorn Larsson, Jonas Forssell, Joachim John David Härsjö
  • Publication number: 20250206230
    Abstract: A system for providing a transparent view of an external environment from inside a vehicle. The system includes at least one portion of the vehicle that is a visual obstruction of a portion of an external environment from a perspective of an interior position in the vehicle. The system further includes at least one perception sensor, wherein the at least one perception sensor captures images of the external environment. The system further includes at least one display positioned inside the vehicle, wherein the display presents a transparent view that represents the portion of the external environment that is obstructed from the perspective of the interior position in the vehicle.
    Type: Application
    Filed: December 21, 2023
    Publication date: June 26, 2025
    Inventors: Torbjorn Larsson, Jonas Forssell, Joachim Härsjö
  • Publication number: 20250209678
    Abstract: A method for providing awareness of objects located in a path of a vehicle. The method includes capturing data on an external environment using at least one perception sensor. The method further includes detecting one or more objects in the path of the vehicle based on the data that is captured. The method further includes estimating locations of the one or more objects in the path of the vehicle. The method further includes presenting one or more virtual objects using at least one display positioned inside the vehicle, where the one or more virtual objects represent the one or more objects that are detected.
    Type: Application
    Filed: December 21, 2023
    Publication date: June 26, 2025
    Inventors: Robert Eriksson, Jonas Forssell, Torbjorn Larsson, Joachim Härsjö
  • Publication number: 20250192876
    Abstract: A modem is configurable on a satellite, user terminal or gateway generates a radio frequency (RF) signal using an orthogonal frequency division multiplexing (OFDM) protocol including a radio frame including one or more bursts. A burst of the one or more bursts includes a first portion including burst detection data, a second portion including channel characteristic estimation data, a third portion including payload data, and fourth and fifth portions including pilot data. The first portion in a time domain is included in the burst prior to the second, third, fourth, and fifth portions. The first portion can include a pseudo-random noise sequence inserted in the time domain. The same physical modem can be configured to transmit signals on an uplink or downlink between a user terminal and a satellite or on the uplink or downlink between the satellite and the gateway.
    Type: Application
    Filed: February 18, 2025
    Publication date: June 12, 2025
    Inventors: Martin S. McCormick, Torbjorn Larsson, Alazar Tamrat, Jeffrey C. Strait, Chen Chen, Philip J. Treigherman, Stephan O. Roche, Ronald Gottula
  • Patent number: 12244396
    Abstract: A modem is configurable on a satellite, user terminal or gateway generates a radio frequency (RF) signal using an orthogonal frequency division multiplexing (OFDM) protocol including a radio frame including one or more bursts. A burst of the one or more bursts includes a first portion including burst detection data, a second portion including channel characteristic estimation data, a third portion including payload data, and fourth and fifth portions including pilot data. The first portion in a time domain is included in the burst prior to the second, third, fourth, and fifth portions. The first portion can include a pseudo-random noise sequence inserted in the time domain. The same physical modem can be configured to transmit signals on an uplink or downlink between a user terminal and a satellite or on the uplink or downlink between the satellite and the gateway.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: March 4, 2025
    Assignee: Space Exploration Technologies Corp.
    Inventors: Martin S. McCormick, Torbjorn Larsson, Alazar Tamrat, Jeffrey C. Strait, Chen Chen, Philip J. Treigherman, Stephan O. Roche, Ronald Gottula
  • Publication number: 20250065773
    Abstract: Techniques for optimized control of a distributed system of direct current to direct current (DCDC) converters are described. In an example, a method comprises employing, by a system operatively coupled to at least one processor, a smartcell battery system to supply power to an electrical system of an electric vehicle, the smartcell battery system comprising a plurality of battery cell clusters arranged in three strings, each battery cell cluster of the plurality comprising one or more battery cells, DCDC converters connected to respective ones of the battery cell clusters and the electrical system. The method further comprises controlling, by the system, when respective ones of the DCDC converters activate and deactivate generation and provision of respective output voltages to the electrical system using respective ones of the battery cell clusters to which they are connected based on monitored power demands of the electrical system.
    Type: Application
    Filed: August 25, 2023
    Publication date: February 27, 2025
    Inventors: Torbjorn Larsson, Narendar Rao Gannamaneni, Jonas Forssell, Markus Ekström
  • Publication number: 20250062935
    Abstract: A modem is configured to receive a transmitted waveform transmitted from a satellite (SAT) to a user terminal (UT). The modem includes: a receiver, on the UT, configured to receive the transmitted waveform from the SAT, the transmitted waveform comprising first resource blocks intended for the UT and second resource blocks intended for a second UT, a first set of components configured with the receiver on the UT to process the transmitted waveform with the first resource blocks and the second resource blocks, a multi-user demapper configured with the receiver to extract the first resource blocks from the transmitted waveform to yield a per-user signal, and a second set of components configured within the receiver to demodulate and decode the first resource blocks in the per-user signal.
    Type: Application
    Filed: August 26, 2024
    Publication date: February 20, 2025
    Inventors: Martin S. McCormick, Torbjorn Larsson, Alazar Tamrat, Jeffrey C. Strait, Chen Chen, Philip J. Treigherman, Stephan O. Roche, Ronald Gottula
  • Patent number: 12123904
    Abstract: Electrical circuits, systems, methods, and/or computer program products that can facilitate isolation resistance monitoring for high voltage buses are addressed. In one example, a system can comprise an electrical circuit further comprising one or more resistors and a voltage meter which measures voltage, such that the voltage measurement assists with monitoring isolation resistance, simultaneously, for a smartcell system of an electric vehicle, and for a direct current (DC) charging source external to the electric vehicle.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: October 22, 2024
    Assignee: Volvo Car Corporation
    Inventors: Fatih Al, Torbjörn Larsson
  • Patent number: 12088398
    Abstract: A modem is configurable on a satellite, user terminal or gateway generates a radio frequency (RF) signal using an orthogonal frequency division multiplexing (OFDM) protocol including a radio frame including one or more bursts. A burst of the one or more bursts includes a first portion including burst detection data, a second portion including channel characteristic estimation data, a third portion including payload data, and fourth and fifth portions including pilot data. The first portion in a time domain is included in the burst prior to the second, third, fourth, and fifth portions. The first portion can include a pseudo-random noise sequence inserted in the time domain. The same physical modem can be configured to transmit signals on an uplink or downlink between a user terminal and a satellite or on the uplink or downlink between the satellite and the gateway.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: September 10, 2024
    Assignee: Space Exploration Technologies Corp.
    Inventors: Martin S. McCormick, Torbjorn Larsson, Alazar Tamrat, Jeffrey C. Strait, Chen Chen, Philip J. Treigherman, Stephan O. Roche, Ronald Gottula
  • Patent number: 12074683
    Abstract: A modem is configurable on a satellite, user terminal or gateway generates a radio frequency (RF) signal using an orthogonal frequency division multiplexing (OFDM) protocol including a radio frame including one or more bursts. A burst of the one or more bursts includes a first portion including burst detection data, a second portion including channel characteristic estimation data, a third portion including payload data, and fourth and fifth portions including pilot data. The first portion in a time domain is included in the burst prior to the second, third, fourth, and fifth portions. The first portion can include a pseudo-random noise sequence inserted in the time domain. The same physical modem can be configured to transmit signals on an uplink or downlink between a user terminal and a satellite or on the uplink or downlink between the satellite and the gateway.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: August 27, 2024
    Assignee: Space Exploration Technologies Corp.
    Inventors: Martin S. McCormick, Torbjorn Larsson, Alazar Tamrat, Jeffrey C. Strait, Chen Chen, Philip J. Treigherman, Stephan O. Roche, Ronald Gottula
  • Patent number: 12051970
    Abstract: A device enabling dedicated DCDC conversion for key-off electrical loads is described. According to one or more embodiments, a device is provided comprising a battery, one or more main conversion units coupled to the battery, and one or more dedicated key-off conversion units coupled to the battery and to one or more key-off electrical modules.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: July 30, 2024
    Assignee: VOLVO CAR CORPORATION
    Inventors: Erik Örnberg, Sofia Lorensson, Stefan Sebastian Larqvist, Erik Jagre, Linas Brusokas, Torbjörn Larsson, Örjan Spjuth
  • Patent number: 12003350
    Abstract: A modem is configurable on a satellite, user terminal or gateway generates a radio frequency (RF) signal using an orthogonal frequency division multiplexing (OFDM) protocol including a radio frame including one or more bursts. A burst of the one or more bursts includes a first portion including burst detection data, a second portion including channel characteristic estimation data, a third portion including payload data, and fourth and fifth portions including pilot data. The first portion in a time domain is included in the burst prior to the second, third, fourth, and fifth portions. The first portion can include a pseudo-random noise sequence inserted in the time domain. The same physical modem can be configured to transmit signals on an uplink or downlink between a user terminal and a satellite or on the uplink or downlink between the satellite and the gateway.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: June 4, 2024
    Assignee: Space Exploration Technologies Corp.
    Inventors: Martin S. McCormick, Torbjorn Larsson, Alazar Tamrat, Jeffrey C. Strait, Chen Chen, Philip J. Treigherman, Stephan O. Roche, Ronald Gottula
  • Patent number: 11999262
    Abstract: A battery control assembly for a battery system. The battery control assembly includes a plurality of cell-level control units, each including a cell-level switching unit being operable as a cell-level inverter. The plurality of cell-level control units are arranged in three control unit strings and the cell-level control units of each control unit string are electrically connected in series. First ends of each control unit string are electrically connected to a corresponding AC charging terminal. Second ends of the control unit strings are electrically connected in series via a first end switch and a second end switch. Moreover, at least one of the control unit strings includes an inner connection terminal. Furthermore, an electric drivetrain for an electric vehicle having such a battery control assembly is presented.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: June 4, 2024
    Assignee: Volvo Car Corporation
    Inventors: Torbjorn Larsson, Jonas Forssell, Robert Eriksson, Nikitas Sidiropoulos, Markus Ekström, Narendar Rao Gannamaneni, Jonas Björkholtz, Yafan Zhang
  • Publication number: 20230387795
    Abstract: A device enabling dedicated DCDC conversion for key-off electrical loads is described. According to one or more embodiments, a device is provided comprising a battery, one or more main conversion units coupled to the battery, and one or more dedicated key-off conversion units coupled to the battery and to one or more key-off electrical modules.
    Type: Application
    Filed: May 31, 2022
    Publication date: November 30, 2023
    Inventors: Erik Örnberg, Sofia Lorensson, Stefan Sebastian Larqvist, Erik Jagre, Linas Brusokas, Torbjörn Larsson, Örjan Spjuth
  • Publication number: 20230280384
    Abstract: Electrical circuits, systems, methods, and/or computer program products that can facilitate isolation resistance monitoring for high voltage buses are addressed. In one example, a system can comprise an electrical circuit further comprising one or more resistors and a voltage meter which measures voltage, such that the voltage measurement assists with monitoring isolation resistance, simultaneously, for a smartcell system of an electric vehicle, and for a direct current (DC) charging source external to the electric vehicle.
    Type: Application
    Filed: March 7, 2022
    Publication date: September 7, 2023
    Inventors: Fatih Al, Torbjörn Larsson
  • Publication number: 20230173948
    Abstract: A battery control assembly for a battery system. The battery control assembly includes a plurality of cell-level control units, each including a cell-level switching unit being operable as a cell-level inverter. The plurality of cell-level control units are arranged in three control unit strings and the cell-level control units of each control unit string are electrically connected in series. First ends of each control unit string are electrically connected to a corresponding AC charging terminal. Second ends of the control unit strings are electrically connected in series via a first end switch and a second end switch. Moreover, at least one of the control unit strings includes an inner connection terminal. Furthermore, an electric drivetrain for an electric vehicle having such a battery control assembly is presented.
    Type: Application
    Filed: December 5, 2022
    Publication date: June 8, 2023
    Inventors: Torbjorn LARSSON, Jonas FORSSELL, Robert ERIKSSON, Nikitas SIDIROPOULOS, Markus EKSTRÖM, Narendar Rao Gannamaneni, Jonas BJÖRKHOLTZ, Yafan ZHANG
  • Patent number: 11368346
    Abstract: A constellation of many satellites and associated ground stations provide communication service to user terminals. These devices use modulation techniques such as orthogonal frequency division multiplexing (OFDM) to send large quantities of data. For transmission, a power amplifier increases the amplitude of a waveform modulated in this way. The power amplifier operates more efficiently closer to saturation. However, operation at saturation results in nonlinear distortion, producing unwanted signals and increasing bit error rate. A set of techniques are used to reduce the peak to average power ratio (PAPR) of the waveform provided to the power amplifier. A distortionless technique remaps blocks of bits to reduce the resulting PAPR of that block. Additional techniques may also be progressively applied to reduce PAPR while minimizing adverse consequences such as in-band distortion, out of band emissions, increased bit error rate, and so forth.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: June 21, 2022
    Assignee: AMAZON TECHNOLOGIE, INC.
    Inventors: Murali Krishnan, Timothy Leo Gallagher, Torbjorn Larsson
  • Patent number: 10023066
    Abstract: A method for determining a status of a vehicle battery includes determining an initial temperature and an initial state of charge of the battery, determining a current threshold value based on the initial temperature and the initial state of charge of the battery, starting the vehicle engine, charging the battery for a predetermined charging period t1, measuring two charging currents, I1 and I2, to the battery at two predetermined points in time during the charging period t1, determining an expected current value at a time t3=t1+t2 based on the measured charging currents, comparing the expected current value with the current threshold value, and determining the battery is faulty if the expected current value is lower than the current threshold value.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: July 17, 2018
    Assignee: Volvo Car Corporation
    Inventors: Torbjorn Larsson, Alexander Engstrom, Linus Franzen, Mats Thorngren, Fabian Fogelberg, Pelle Thorson, Petter Almhagen, Emil Wall, Daniel Midholm
  • Patent number: 9864011
    Abstract: A method for performing a diagnostic test of an alternator, a test arrangement and a vehicle are provided. The method may include running an engine, providing a signal representative of a pre-determined environmental condition to the alternator, providing an output voltage and output current to a battery based on the pre-determined environmental condition, and determining a battery voltage. The method may also include comparing the determined battery voltage with a pre-defined reference-voltage representative of the pre-determined environmental condition and outputting an approved test result if the difference between the determined battery voltage and the pre-defined reference voltage falls within a predetermined range.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: January 9, 2018
    Assignee: Volvo Car Corporation
    Inventors: Torbjorn Larsson, Emil Wall, Mats Thorngren, Pelle Thorson, Aryan Madadi
  • Publication number: 20170080819
    Abstract: A method for determining a status of a vehicle battery includes determining an initial temperature and an initial state of charge of the battery, determining a current threshold value based on the initial temperature and the initial state of charge of the battery, starting the vehicle engine, charging the battery for a predetermined charging period t1, measuring two charging currents, I1 and I2, to the battery at two predetermined points in time during the charging period t1, determining an expected current value at a time t3=t1+t2 based on the measured charging currents, comparing the expected current value with the current threshold value, and determining the battery is faulty if the expected current value is lower than the current threshold value.
    Type: Application
    Filed: September 12, 2016
    Publication date: March 23, 2017
    Applicant: VOLVO CAR CORPORATION
    Inventors: Torbjorn LARSSON, Alexander ENGSTROM, Linus FRANZEN, Mats THORNGREN, Fabian FOGELBERG, Pelle THORSON, Petter ALMHAGEN, Emil WALL, Daniel MIDHOLM