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: 20240166235Abstract: 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: ApplicationFiled: November 15, 2023Publication date: May 23, 2024Applicant: Volvo Autonomous Solutions ABInventors: Fredrik SANDBLOM, Linus HAGVALL, Stefan BERGQUIST
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Publication number: 20230393231Abstract: 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: ApplicationFiled: May 31, 2023Publication date: December 7, 2023Applicant: Volvo Autonomous Solutions ABInventors: Linus HAGVALL, Stefan BERGQUIST
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Publication number: 20230202491Abstract: 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: ApplicationFiled: November 28, 2022Publication date: June 29, 2023Inventors: Stefan Bergquist, Linus Hagvall, Christian Grante
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Publication number: 20230184887Abstract: 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: ApplicationFiled: December 9, 2022Publication date: June 15, 2023Applicant: Volvo Autonomous Solutions ABInventors: Linus HAGVALL, Stefan Bergquist, Christan Grante
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Publication number: 20230154331Abstract: A computer-implemented method for assisting one or more autonomous vehicles to drive in a road junction. The road junction comprises a plurality of traffic zones, including a central zone arranged for use by the one or more autonomous vehicles and one or more secondary vehicles and at least one edge zone for use by the one or more secondary vehicles for entering the central zone. The method comprises obtaining sensor data from a set of sensors arranged in the road junction for monitoring the plurality of traffic zones. The sensor data is indicative of objects present in the plurality of traffic zones. Based on the obtained sensor data, it is determined whether there are any objects present in the plurality of traffic zones. In response to determining that at least one object is present in the at least one edge zone indicating to the one or more autonomous vehicles that the road junction is occupied.Type: ApplicationFiled: November 4, 2022Publication date: May 18, 2023Applicant: Volvo Autonomous Solutions ABInventors: Linus HAGVALL, Stefan BERGQUIST, Christan GRANTE
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Publication number: 20230142252Abstract: 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: ApplicationFiled: October 21, 2019Publication date: May 11, 2023Inventors: Stefan BERGQUIST, Wilhelm WIBERG, António AMARAL CRAVEIRO
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Publication number: 20230035414Abstract: A method for providing a positive decision signal for a vehicle which is about to perform a traffic scenario action. The method includes receiving information about at least one surrounding road user, which information is indicative of distance to the surrounding road user with respect to the vehicle and at least one of speed and acceleration of the surrounding road user; calculating a value based on the received information; providing the positive decision signal to perform the traffic scenario action when the calculated value is fulfilling a predetermined condition. The value is calculated based on an assumption that the surrounding road user will react on the traffic scenario action by changing its acceleration.Type: ApplicationFiled: December 18, 2019Publication date: February 2, 2023Applicant: VOLVO TRUCK CORPORATIONInventors: Stefan BERGQUIST, Wilhelm WIBERG
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Patent number: 11511746Abstract: The invention relates to a method for a follower vehicle (2) following a lead vehicle, comprising—determining a position (PL) and a heading (HL) of the lead vehicle (1), —determining a position (PF) and a heading (HF) of the follower vehicle (2), —subsequently establishing a path for the follower vehicle (2) by fitting a curve (C1) to said positions (PL, PF) and said headings (HL, HF), —and controlling the follower vehicle (2) so as to move along the established path.Type: GrantFiled: May 11, 2018Date of Patent: November 29, 2022Assignee: Volvo Truck CorporationInventors: Wilhelm Wiberg, Stefan Bergquist, Edvin Valtersson, Mats Sköld
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Patent number: 11505190Abstract: A method for a follower vehicle following a lead vehicle, comprising establishing, in a first control mode of the follower vehicle, a path for the follower vehicle to follow the lead vehicle, characterized by generating environmental data which is related to the environment of the lead vehicle, determining, based on the generated environmental data, an expected behaviour of an operational parameter of the lead vehicle, determining an actual behaviour of the lead vehicle operational parameter, comparing the determined expected behaviour of the lead vehicle operational parameter and the determined actual behaviour of the lead vehicle operational parameter, determining based on said comparison whether to continue in first control mode of the follower vehicle, or in a second control mode of the follower vehicle, differing from the first control mode.Type: GrantFiled: November 1, 2018Date of Patent: November 22, 2022Assignee: Volvo Truck CorporationInventors: Wilhelm Wiberg, Stefan Bergquist, Edvin Valtersson, Mats Sköld
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Publication number: 20220227372Abstract: 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: ApplicationFiled: May 17, 2019Publication date: July 21, 2022Inventors: Peter NILSSON, Oliver SUNDELL, Patrik NILSSON, Wilhelm WIBERG, Stefan BERGQUIST, Oskar WIGSTRÖM
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Patent number: 11354951Abstract: The invention relates to a method for diagnosing error of at least one of an ego vehicle (10) and a surrounding vehicle (12), which method comprises the steps of: the ego vehicle (10) receiving (S1) sensor data about the surrounding vehicle (12) from an on-board sensor (14) of the ego vehicle (10) and vehicle to vehicle data from the surrounding vehicle (12); the ego vehicle (10) comparing (S2) the received sensor data and the received vehicle to vehicle data; and the ego vehicle (10) detecting (S3) a difference between the received sensor data and the received vehicle to vehicle data, whereby the ego vehicle (10): stops (S4) receiving vehicle to vehicle data from the surrounding vehicle (12); registers (S5) a potential error of the ego vehicle (10); and reports (S6) a potential error of the surrounding vehicle (12) to at least one of the surrounding vehicle (12) and a remote server (18). The invention also concerns a method for diagnosing error of a surrounding vehicle (12).Type: GrantFiled: October 20, 2017Date of Patent: June 7, 2022Assignee: Volvo Truck CorporationInventors: Stefan Bergquist, Wilhelm Wiberg
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Patent number: 11328608Abstract: The invention relates to a method for a string comprising a plurality of vehicles platooning by means of vehicle-to-vehicle (V2V) communication, comprising collecting (S1) from a plurality of sources (111, 1021, 1022, 1023) values (OP1-OP3) of operational parameters related to the operation of a first (1) of the vehicles, characterized by determining (S2) based on the operational parameter values (OP1-OP3) a plurality of values (AP1-AP3) of an acceleration parameter indicative of an acceleration of the first vehicle, and selecting (S3) from the acceleration parameter values (AP1-AP3) an extreme value (AP2) indicative of the lowest acceleration of the first vehicle (1).Type: GrantFiled: March 27, 2018Date of Patent: May 10, 2022Assignee: VOLVO TRUCK CORPORATIONInventors: Stefan Bergquist, Wilhelm Wiberg
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Patent number: 11136029Abstract: The invention relates to a method for controlling a subject vehicle (1) travelling along a road behind a vehicle transmitting wireless signals representative of at least one parameter affecting the velocity and/or acceleration of the transmitting vehicle (2), the method comprising—receiving said wireless signals from the transmitting vehicle (2), —controlling (S6) the velocity and/or acceleration of the subject vehicle (1) in dependence on the received signals, —during said control (S6) in dependence on the received signals, monitoring (S3) by means (111) other than means for wireless communication a distance (DSF) between the subject vehicle (1) and a further vehicle (3) travelling between the subject vehicle (1) and the transmitting vehicle (2), —and determining in dependence on the monitoring of the distance (DSF) between the subject vehicle (1) and the further vehicle (3) whether or not to control (S5) the velocity and/or acceleration of the subject vehicle (1) in dependence on the monitored distance (DSFType: GrantFiled: November 9, 2016Date of Patent: October 5, 2021Assignee: VOLVO TRUCK CORPORATIONInventors: Stefan Bergquist, Wilhelm Wiberg
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Publication number: 20210294351Abstract: The invention relates to a method for a string comprising a plurality of vehicles, including a lead vehicle (1) and at least one follower vehicle (2), comprising the follower vehicle (2) following, by means of vehicle-to-vehicle (V2V) communication, the lead vehicle (1) 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 (BT1), which is different from the follower trajectory, —wherein the generated backup trajectory (BT1), or the surroundings data, is received by at least one of the at least one follower vehicle, —wherein the receiving follower vehicle (2) follows the generated backup trajectory (BT1), upon a determination of a predetermined condition for following the generated backup trajectory (BT1).Type: ApplicationFiled: April 12, 2019Publication date: September 23, 2021Inventors: Wilhelm Wiberg, Stefan Bergquist, Antonio Amaral Craveiro, Edvin Valtersson
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Publication number: 20210213949Abstract: The invention relates to a method for a follower vehicle (2) following a lead vehicle, comprising—determining a position (PL) and a heading (HL) of the lead vehicle (1),—determining a position (PF) and a heading (HF) of the follower vehicle (2),—subsequently establishing a path for the follower vehicle (2) by fitting a curve (C1) to said positions (PL, PF) and said headings (HL, HF),—and controlling the follower vehicle (2) so as to move along the established path.Type: ApplicationFiled: May 11, 2018Publication date: July 15, 2021Inventors: Wilhelm Wiberg, Stefan Bergquist, Edvin Valtersson, Mats Sköld
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Publication number: 20210192870Abstract: The invention relates to a method for diagnosing error of at least one of an ego vehicle (10) and a surrounding vehicle (12), which method comprises the steps of: the ego vehicle (10) receiving (S1) sensor data about the surrounding vehicle (12) from an on-board sensor (14) of the ego vehicle (10) and vehicle to vehicle data from the surrounding vehicle (12); the ego vehicle (10) comparing (S2) the received sensor data and the received vehicle to vehicle data; and the ego vehicle (10) detecting (S3) a difference between the received sensor data and the received vehicle to vehicle data, whereby the ego vehicle (10): stops (S4) receiving vehicle to vehicle data from the surrounding vehicle (12); registers (S5) a potential error of the ego vehicle (10); and reports (S6) a potential error of the surrounding vehicle (12) to at least one of the surrounding vehicle (12) and a remote server (18). The invention also concerns a method for diagnosing error of a surrounding vehicle (12).Type: ApplicationFiled: October 20, 2017Publication date: June 24, 2021Inventors: Stefan Bergquist, Wilhelm Wiberg
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Publication number: 20210163004Abstract: The invention relates to a method for a follower vehicle following a lead vehicle (1), comprising establishing, in a first control mode of the follower vehicle (2), a path for the follower vehicle (2) to follow the lead vehicle (1), characterized by —generating environmental data (SL) which is related to the environment of the lead vehicle (1), —determining, based on the generated environmental data, an expected behaviour (NAP, NSP) of an operational parameter of the lead vehicle (1), —determining an actual behaviour (AA, AS) of the lead vehicle operational parameter, —comparing the determined expected behaviour (NAP, NSP) of the lead vehicle operational parameter and the determined actual behaviour of the lead vehicle operational parameter, —determining based on said comparison whether to continue in first control mode of the follower vehicle (2), or in a second control mode of the follower vehicle, differing from the first control mode.Type: ApplicationFiled: November 1, 2018Publication date: June 3, 2021Inventors: Wilhelm Wiberg, Stefan Bergquist, Edvin Valtersson, Mats Sköld
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Patent number: 11004344Abstract: A method is provided for vehicle identification, which method includes the steps of: an ego vehicle detecting a communicating vehicle by wireless vehicle to vehicle communication; the ego vehicle detecting a nearby vehicle by a sensor onboard the ego vehicle; the ego vehicle sending an identification request to the communicating vehicle by wireless vehicle to vehicle communication, wherein the identification request instructs the communicating vehicle to perform an action; the ego vehicle determining whether or not the nearby vehicle performed the action based at least on data from the sensor; and if the ego vehicle determines that the nearby vehicle performed the action, the ego vehicle determining that the communicating vehicle and the nearby vehicle are the same vehicle.Type: GrantFiled: April 4, 2016Date of Patent: May 11, 2021Assignee: VOLVO TRUCK CORPORATIONInventors: Stefan Bergquist, Wilhelm Wiberg, Petter Wirfält, Henrik Gullvén, Fredrik Sandblom
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Publication number: 20210132630Abstract: The invention relates to a method for at least one string, each string comprising a plurality of vehicles platooning by means of vehicle-to-vehicle communication, characterized by a vehicle (VIDY) in a string (SID1) repeatedly or continuously transmitting (S1) string and vehicle data including a roof value (MAXnX) representing a maximum number of vehicles allowed in the string, and a participation value (POSn) indicative of the current number of vehicles in the string (SID1).Type: ApplicationFiled: January 24, 2017Publication date: May 6, 2021Inventors: Stefan Bergquist, Wilhelm Wiberg
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Publication number: 20200035104Abstract: The invention relates to a method for a string comprising a plurality of vehicles platooning by means of vehicle-to-vehicle (V2V) communication, comprising collecting (S1) from a plurality of sources (111, 1021, 1022, 1023) values (OP1-OP3) of operational parameters related to the operation of a first (1) of the vehicles, characterized by determining (S2) based on the operational parameter values (OP1-OP3) a plurality of values (AP1-AP3) of an acceleration parameter indicative of an acceleration of the first vehicle, and selecting (S3) from the acceleration parameter values (AP1-AP3) an extreme value (AP2) indicative of the lowest acceleration of the first vehicle (1).Type: ApplicationFiled: March 27, 2018Publication date: January 30, 2020Inventors: Stefan Bergquist, Wilhelm Wiberg