Patents by Inventor Stefan BERGQUIST
Stefan BERGQUIST 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).
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Publication number: 20260147353Abstract: A computer system controls a vehicle relative to at least one adjacent vehicle operating within a confined geographical area. The computer system has processing circuitry to: determine a position, speed and trajectory of the at least one adjacent vehicle relative to a position, speed and trajectory of the vehicle; determine that a first collision between the vehicle and the at least one adjacent vehicle is imminent based on the determined position, speed and trajectory of the at least one adjacent vehicle relative to the position, speed and trajectory of the vehicle; predict an impact level of the first collision on the vehicle, the impact level being indicative of a predicted effect of the first collision on the vehicle; determine at least one alternative trajectory for the vehicle based on the predicted impact level and any predicted potential secondary collision between the vehicle and at least one object; and control the vehicle based on the determined at least one alternative trajectory.Type: ApplicationFiled: November 14, 2025Publication date: May 28, 2026Applicant: Volvo Autonomous Solutions ABInventors: Wilhelm WIBERG, Stefan BERGQUIST
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Patent number: 12637044Abstract: A minimum risk maneuver brake system for a heavy-duty vehicle is described. The brake system comprising a first axle comprising a left wheel braking device and a right wheel braking device, where the braking devices are configured to apply a pre-determined difference in brake torque over the axle in response to a brake signal.Type: GrantFiled: May 10, 2021Date of Patent: May 26, 2026Assignee: VOLVO TRUCK CORPORATIONInventors: Linus Hagvall, Stefan Bergquist
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Patent number: 12630154Abstract: A method for handling operational for an autonomous vehicle driving from a first work area to a second work area via a predefined path is provided. The operations of the autonomous vehicle are constrained by the operational requirements. The method comprises detecting that the autonomous vehicle is initiating driving in the predefined path. The method further comprises when detected that the autonomous vehicle is initiating driving in the predefined path, triggering a relaxation of the operational requirements. The method further comprises, when the autonomous vehicle is driving in the predefined path, detecting whether the autonomous vehicle turns towards the first work area. When detecting that the autonomous vehicle turns towards the first work area, the method further comprises triggering a preventive action for preventing the autonomous vehicle from driving towards the first work area using the relaxed operational requirements.Type: GrantFiled: April 4, 2023Date of Patent: May 19, 2026Assignee: Volvo Autonomous Solutions ABInventors: Linus Hagvall, Stefan Bergquist, Petter Wirfält, Fredrik Sandblom, Ian Macisaac, Robert Hult, Marcus Kreku
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Patent number: 12541001Abstract: A method for determining an error with anchor point detection for an at least partly autonomous vehicle is provided. The method comprises detecting a first anchor point. The method comprises obtaining a distance between the first anchor point and a second anchor point. The method comprises, based on the distance and a of the vehicle, estimating an expected time for the vehicle to detect the second anchor point. The method comprises establishing a time difference by comparing the expected time with a second time after the expected time or by detecting the second anchor point at a third time, and establishing the time difference by comparing the expected time with the third time. The method comprises, based on the established time difference, determining whether there is an error in detecting the first anchor point and/or the second anchor point.Type: GrantFiled: May 31, 2023Date of Patent: February 3, 2026Assignee: Volvo Autonomous Solutions ABInventors: Linus Hagvall, Stefan Bergquist
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Patent number: 12528503Abstract: A computer system comprising a processor device configured to select a candidate path for a first vehicle to travel is provided. The processor device is further configured to obtain, from at least one temperature sensor, heat sensor data indicative of heat distributed on a road surface of a road located ahead of the first vehicle in a driving direction of the first vehicle. The processor device is further configured to, based on the heat distributed on the road surface, identify at least one first path travelled by at least one second vehicle. The processor device is further configured to select a candidate path for the first vehicle to travel. The candidate path is selected out of the at least one first path.Type: GrantFiled: November 15, 2023Date of Patent: January 20, 2026Assignee: Volvo Autonomous Solutions ABInventors: Fredrik Sandblom, Linus Hagvall, Stefan Bergquist
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Publication number: 20260015829Abstract: A computer system including processing circuitry being configured to be in a site operating mode for controlling the operation on a site including at least one automated vehicle and a site operator is provided. The processing circuitry is configured, in a site operating mode, to receive, from a requester, a restriction request, set the at least one automated vehicle in the restricted mode based on said restriction request, receive, from the requester, a resume request, in response to the resume request receive, from the site operator, a resume instruction, and set the at least one automated vehicle in a non-restricted mode at least based on the resume instruction.Type: ApplicationFiled: June 9, 2025Publication date: January 15, 2026Inventors: Oskar LJUNGKRANTZ, Stefan BERGQUIST
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Patent number: 12487609Abstract: A method performed by a control unit for operating an autonomous vehicle is provided. The control unit is arranged to communicate via at least one antenna. The control unit obtains, based on a signal from the at least one antenna, information relating to at least one geographical zone associated with a transponder as the autonomous vehicle moves in proximity of the transponder. Also, the control unit determines an autonomous operating mode of the autonomous vehicle based on the obtained information relating to the at least one geographical zone associated with the transponder. The control unit further operates the autonomous vehicle in accordance with the determined autonomous operating mode.Type: GrantFiled: October 15, 2021Date of Patent: December 2, 2025Assignee: VOLVO TRUCK CORPORATIONInventors: Stefan Bergquist, Linus Hagvall, Christian Grante
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Patent number: 12472958Abstract: A method of verifying a position of a vehicle using a vehicle-mounted device, the method including generating first position data for the vehicle-mounted device responsive to receiving data from a transponder-based localization system, generating second position data for the vehicle-mounted device responsive to receiving data from another localization system; and reporting verified vehicle position data for the vehicle, based on a comparison of the data from the other localization system with the data from the transponder-based localization system for the vehicle-mounted device.Type: GrantFiled: November 28, 2022Date of Patent: November 18, 2025Assignee: VOLVO AUTONOMOUS SOLUTIONS ABInventors: Stefan Bergquist, Linus Hagvall, Christian Grante
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Patent number: 12434710Abstract: The present disclosure relates to a computer implemented method for operating an autonomous vehicle based on sensor data representative of an area in a driving direction of and in the vicinity of the vehicle. The vehicle is equipped with a control unit adapted to determine if a plurality of detailed actions to be performed by the vehicle successfully may be used for fulfilling a desired general action plan for the vehicle. The present disclosure also relates to a corresponding control system and to a computer program product.Type: GrantFiled: May 17, 2019Date of Patent: October 7, 2025Assignee: Volvo Truck CorporationInventors: Peter Nilsson, Oliver Sundell, Patrik Nilsson, Wilhelm Wiberg, Stefan Bergquist, Oskar Wigström
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Patent number: 12415496Abstract: A method for assessing reliability of a brake assembly of a vehicle. The brake assembly comprises brake system, nominal automation system and safety system. The brake system is adapted to receive a brake request individually from each one of the nominal automation system and the safety system and in response, initiate a braking operation. The method comprises determining an actual braking operation density, the actual braking operation density determined on the basis of at least a subset of occurrences per unit time when a braking operation is initiated by the brake system; in response to detecting that the actual braking operation density is lower than a braking operation reference density, issuing a brake request from the safety system; detecting a response of the brake system to the signal issued from the safety system, and on the basis of at least the detected response, assessing the reliability of the brake assembly.Type: GrantFiled: June 18, 2021Date of Patent: September 16, 2025Assignee: Volvo Truck CorporationInventors: Stefan Bergquist, Linus Hagvall, Christian Grante
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Patent number: 12386034Abstract: A method performed by a central unit for evaluating a performance of an obstacle detection system comprised in a first object within a set of two or more objects at a confined area. The first object is a vehicle. The central unit obtains pose data from each object in the set and obstacle detection data from at least the first object. The central unit determines a relative pose of the objects using the pose data from each object. The central unit the obstacle detection data from each object in the set to the determined relative pose of the objects. Based on the comparison, the central unit evaluates the performance of the obstacle detection system of the first object.Type: GrantFiled: December 9, 2022Date of Patent: August 12, 2025Assignee: Volvo Autonomous Solutions ABInventors: Linus Hagvall, Stefan Bergquist, Christian Grante
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Publication number: 20250249894Abstract: A method for handling operational for an autonomous vehicle driving from a first work area to a second work area via a predefined path is provided. The operations of the autonomous vehicle are constrained by the operational requirements. The method comprises detecting that the autonomous vehicle is initiating driving in the predefined path. The method further comprises when detected that the autonomous vehicle is initiating driving in the predefined path, triggering a relaxation of the operational requirements. The method further comprises, when the autonomous vehicle is driving in the predefined path, detecting whether the autonomous vehicle turns towards the first work area. When detecting that the autonomous vehicle turns towards the first work area, the method further comprises triggering a preventive action for preventing the autonomous vehicle from driving towards the first work area using the relaxed operational requirements.Type: ApplicationFiled: April 4, 2023Publication date: August 7, 2025Applicant: Volvo Autonomous Solutions ABInventors: Linus HAGVALL, Stefan BERGQUIST, Petter WIRFÄLT, Fredrik SANDBLOM, lan MACISAAC, Robert HULT, Marcus KREKU
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Publication number: 20250187616Abstract: A method for assisting in the operation of a malfunctioning autonomous vehicle in a work environment is provided. The method comprising obtaining diagnostics data indicative of a malfunction in the autonomous vehicle. The method further comprises determining a fault associated with the autonomous vehicle based on the diagnostics data. The method further comprises deciding a preventive action between a set of preventive actions for securing the at least one area based on the determined fault. The set of preventive actions comprising any one or a combination of: triggering the autonomous vehicle to refrain from traversing and/or operating in the at least one area, or to increase safety requirements for traversing and/or operating in the at least one area, and triggering an adaption of road infrastructure in the at least one area, which adaption prompts a restriction of movement of the at least one manual actor in the at least one area.Type: ApplicationFiled: March 16, 2022Publication date: June 12, 2025Applicant: Volvo Autonomous Solutions ABInventors: Linus HAGVALL, Stefan BERGQUIST
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Publication number: 20250148910Abstract: A computer implemented method for monitoring an autonomous operating zone, AOZ, including a number of one or more autonomous vehicles, is provided. Each vehicle has sensors arranged to detect an ego-position of the vehicle and relative positions of surrounding objects.Type: ApplicationFiled: February 10, 2022Publication date: May 8, 2025Applicant: Volvo Autonomous Solutions ABInventors: Linus HAGVALL, Stefan BERGQUIST
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Patent number: 12252151Abstract: The present disclosure relates to a computer implemented method for determining a reliability level of data received by an ego vehicle from a target vehicle being different from the ego vehicle. The present disclosure also relates to a corresponding control system and to a computer program product.Type: GrantFiled: October 21, 2019Date of Patent: March 18, 2025Assignee: Volvo Truck CorporationInventors: Stefan Bergquist, Wilhelm Wiberg, António Amaral Craveiro
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Publication number: 20240427345Abstract: A method performed by a control unit for operating an autonomous vehicle is provided. The control unit is arranged to communicate via at least one antenna. The control unit obtains, based on a signal from the at least one antenna, information relating to at least one geographical zone associated with a transponder as the autonomous vehicle moves in proximity of the transponder. Also, the control unit determines an autonomous operating mode of the autonomous vehicle based on the obtained information relating to the at least one geographical zone associated with the transponder. The control unit further operates the autonomous vehicle in accordance with the determined autonomous operating mode.Type: ApplicationFiled: October 15, 2021Publication date: December 26, 2024Applicant: VOLVO TRUCK CORPORATIONInventors: Stefan BERGQUIST, Linus HAGVALL, Christian GRANTE
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Patent number: 12140966Abstract: The invention relates to a method for a string comprising a plurality of vehicles, including a lead vehicle and at least one follower vehicle, comprising the follower vehicle following, by means of vehicle-to-vehicle communication, the lead vehicle in a follower trajectory. The method comprises generating surroundings data, regarding the surroundings of at least a part of the string, generating, using the surroundings data, a backup trajectory, which is different from the follower trajectory, wherein the generated backup trajectory, or the surroundings data, is received by at least one of the at least one follower vehicle, wherein the receiving follower vehicle follows the generated backup trajectory, upon a determination of a predetermined condition for following the generated backup trajectory.Type: GrantFiled: April 12, 2019Date of Patent: November 12, 2024Assignee: Volvo Truck CorporationInventors: Wilhelm Wiberg, Stefan Bergquist, Antonio Amaral Craveiro, Edvin Valtersson
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Publication number: 20240317267Abstract: A method for controlling a maximum allowed speed of an autonomous vehicle includes utilizing a first sensor performance level during driving where the vehicle is allowed to drive with a first maximum allowed speed, while utilizing the first sensor performance level, simultaneously monitoring a rate of false positive object detections for the second sensor performance level which is associated with a second maximum allowed speed which is higher than the first maximum allowed speed and which is a less restrictive sensor performance level, wherein a less restrictive sensor performance level is a sensor performance level with a higher probability of false positive object detections, when the rate of false positive object detections for the second sensor performance level is below a first false positive error threshold, utilizing a less restrictive sensor performance level which is associated with a higher maximum allowed speed, thereby increasing the maximum allowed speed from the first maximum allowed speed to aType: ApplicationFiled: July 16, 2021Publication date: September 26, 2024Applicant: Volvo Autonomous Solutions ABInventors: Stefan BERGQUIST, Linus HAGVALL
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Publication number: 20240278806Abstract: A method of controlling a backup motion control system for an autonomous vehicle is provided. The autonomous vehicle includes a primary steering system for controlling steering operations of a pair of steerable wheels. Each of the steerable wheels comprises a wheel brake, the wheel brakes being connected to an anti-lock braking system for preventing the wheel brakes from being locked when the anti-lock braking system is arranged in an enabled state.Type: ApplicationFiled: July 7, 2021Publication date: August 22, 2024Applicant: Volvo Autonomous Solutions ABInventors: Linus HAGVALL, Stefan BERGQUIST, Peter NILSSON
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Publication number: 20240270226Abstract: A method for assessing reliability of a brake assembly of a vehicle. The brake assembly comprises brake system, nominal automation system and safety system. The brake system is adapted to receive a brake request individually from each one of the nominal automation system and the safety system and in response, initiate a braking operation. The method comprises determining an actual braking operation density, the actual braking operation density determined on the basis of at least a subset of occurrences per unit time when a braking operation is initiated by the brake system; in response to detecting that the actual braking operation density is lower than a braking operation reference density, issuing a brake request from the safety system; detecting a response of the brake system to the signal issued from the safety system, and on the basis of at least the detected response, assessing the reliability of the brake assembly.Type: ApplicationFiled: June 18, 2021Publication date: August 15, 2024Inventors: Stefan BERGQUIST, Linus HAGVALL, Christian GRANTE