Patents by Inventor Henrik Engdahl
Henrik Engdahl 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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Patent number: 11872904Abstract: The invention relates to a method performed by a control unit (115) for handling charging in an at least partly electric vehicle (100). The control unit (115) transmits, to a charger (103), a request to provide power to at least one auxiliary load (108) and to charge a battery (101) with an amount of voltage. The amount of voltage corresponds to a desired SOC level. The charging of the battery (101) automatically stops when the desired SOC level is reached. The charger (103) continues to provide power to the at least one auxiliary load (108) when the desired SOC level is reached.Type: GrantFiled: September 16, 2021Date of Patent: January 16, 2024Assignee: VOLVO TRUCK CORPORATIONInventors: Reza Atefi, Henrik Engdahl, Vahid Pektash, Andreas Melin
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Publication number: 20220379739Abstract: A high voltage traction system for a vehicle includes two independently controllable power sub-systems being a powertrain power sub-system, PPS, and a vehicle power sub-system, VPS. The PPS comprising a plurality of PPS secondary power consumers and a PPS master controller being configured to arbitrate power limits among the PPS secondary power consumers by a first arbitration logic, and the VPS comprising a plurality of VPS secondary power consumers and a VPS master controller being configured to arbitrate power limits among the VPS secondary power consumers by a second arbitration logic, different to the first arbitration logic. A master interface is between the PPS master controller and the VPS master controller enabling communication exchange between the PPS and VPS including system-shared instructions of prioritization of the PPS and VPS secondary power consumers limiting the first arbitration logic and/or the second arbitration logic in a limited state.Type: ApplicationFiled: May 24, 2022Publication date: December 1, 2022Applicant: Volvo Truck CorporationInventors: Devraj Dutt, Henrik Engdahl
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Publication number: 20220274489Abstract: A vehicle has a current collector for feeding traction energy from a two-pole overhead contact line system, an electric or hybrid electric traction drive, and an electric energy storage device for temporarily storing fed traction energy. A first line branch can connect the traction drive to the current collector. A second line branch, which can connect the traction drive and the energy storage device to the current collector, includes a switched-in, galvanically isolating DC-to-DC converter. Due to a third line branch which can connect the traction drive and the energy storage device to the current collector, and which includes a switched-in, non-galvanically isolating DC-to-DC converter, enables higher charging rates for charging the energy storage device to be transmitted while maintaining the protection system.Type: ApplicationFiled: July 7, 2020Publication date: September 1, 2022Inventors: Helge Molthan, Holger Sommer, Henrik Engdahl, Christer Thoren
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Publication number: 20220089057Abstract: The invention relates to a method performed by a control unit (115) for handling charging in an at least partly electric vehicle (100). The control unit (115) transmits, to a charger (103), a request to provide power to at least one auxiliary load (108) and to charge a battery (101) with an amount of voltage. The amount of voltage corresponds to a desired SOC level. The charging of the battery (101) automatically stops when the desired SOC level is reached. The charger (103) continues to provide power to the at least one auxiliary load (108) when the desired SOC level is reached.Type: ApplicationFiled: September 16, 2021Publication date: March 24, 2022Applicant: VOLVO TRUCK CORPORATIONInventors: Reza ATEFI, Henrik ENGDAHL, Vahid PEKTASH, Andreas MELIN
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Publication number: 20200062143Abstract: An electrified road transport system includes a contact line system having a plurality of masts with support cables and contact wires suspended thereon. The contact line system has structural modifications for reducing the horizontal and/or vertical positional tolerances of the contact wires. In the context of the structural modifications, section separators are fastened directly to masts or to cantilevers of the masts, skewed overhead lines are disposed in straight section segments and/or in curves, and the support cables and/or contact wires have smaller cross-sections and/or higher longitudinal tensile forces. A method for stabilizing a contact line system of an electrified road transport system is also provided.Type: ApplicationFiled: February 2, 2018Publication date: February 27, 2020Inventors: FLORIAN BUEHS, HENRIK ENGDAHL, OLIVER GRAEBNER, GOERAN SAENGER, MICHAEL LEHMANN
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Patent number: 10108201Abstract: A vehicle control facility for the automated control of an electrical road vehicle for a route system with an energy-supply system that includes a lane-bound energy supply line, in particular an overhead line system. A position-determining unit determines a geographical position of the electrical road vehicle. A specific-lane-determining unit determines position data for a specific lane assigned to the lane-bound energy supply line. A communication interface transmits current relative positions of infrastructure features with respect to the electrical road vehicle to an external central specific-lane-determining facility and receives position data. A vehicle-control unit controls the electrical road vehicle with respect to the determined specific lane in dependence on the determined relative position of the specific lane.Type: GrantFiled: June 27, 2017Date of Patent: October 23, 2018Assignee: Siemens AktiengesellschaftInventors: Henrik Engdahl, Juergen Francke, Frank Gerstenberg, Oliver Graebner, Michael Lehmann, Goeran Saenger, Florian Buehs
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Publication number: 20170371350Abstract: A vehicle control facility for the automated control of an electrical road vehicle for a route system with an energy-supply system that includes a lane-bound energy supply line, in particular an overhead line system. A position-determining unit determines a geographical position of the electrical road vehicle. A specific-lane-determining unit determines position data for a specific lane assigned to the lane-bound energy supply line. A communication interface transmits current relative positions of infrastructure features with respect to the electrical road vehicle to an external central specific-lane-determining facility and receives position data. A vehicle-control unit controls the electrical road vehicle with respect to the determined specific lane in dependence on the determined relative position of the specific lane.Type: ApplicationFiled: June 27, 2017Publication date: December 28, 2017Inventors: HENRIK ENGDAHL, JUERGEN FRANCKE, FRANK GERSTENBERG, OLIVER GRAEBNER, MICHAEL LEHMANN, GOERAN SAENGER, FLORIAN BUEHS
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Patent number: 9428060Abstract: A method for controlling a hybrid vehicle electrical system includes driving the vehicle in a first driving mode where the battery pack is connected to the traction voltage DC-link and the battery pack is supplying the electrical auxiliary units with power, shutting down the power electronics unit in order to cease power delivery from the electric machine to the traction voltage DC-link or to the electric machine from the traction voltage DC-link, disconnecting the battery pack from the traction voltage DC-link by opening the relay, and activating the power electronics unit and controlling output voltage of the power electronics unit to a predetermined level.Type: GrantFiled: July 3, 2013Date of Patent: August 30, 2016Assignee: Volvo Lastvagnar ABInventors: Anders Lasson, Jerker Lennevi, Henrik Engdahl
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Patent number: 9365210Abstract: In a method and an arrangement for powering up a DC distribution system in a hybrid vehicle power train, the power train includes an electric storage system, an internal combustion engine, an electric motor/generator, a clutch device to connect the electric motor/generator to the internal combustion engine, a power electronics unit with a voltage regulator connected to the electric motor/generator, and an electronic control unit for controlling the power train. The electric storage system and the electric motor/generator are connectable to one or more electrical loads for driving the vehicle.Type: GrantFiled: November 8, 2011Date of Patent: June 14, 2016Assignee: Volvo Lastvagnar ABInventor: Henrik Engdahl
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Publication number: 20150321657Abstract: A method for controlling a hybrid vehicle electrical system includes driving the vehicle in a first driving mode where the battery pack is connected to the traction voltage DC-link and the battery pack is supplying the electrical auxiliary units with power, shutting down the power electronics unit in order to cease power delivery from the electric machine to the traction voltage DC-link or to the electric machine from the traction voltage DC-link, disconnecting the battery pack from the traction voltage DC-link by opening the relay, and activating the power electronics unit and controlling output voltage of the power electronics unit to a predetermined level.Type: ApplicationFiled: July 3, 2013Publication date: November 12, 2015Applicant: VOLVO TRUCK CORPORATIONInventors: Anders LASSON, Jerker LENNEVI, Henrik ENGDAHL
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Publication number: 20140288753Abstract: In a method and an arrangement for powering up a DC distribution system in a hybrid vehicle power train, the power train includes an electric storage system, an internal combustion engine, an electric motor/generator, a clutch device to connect the electric motor/generator to the internal combustion engine, a power electronics unit with a voltage regulator connected to the electric motor/generator, and an electronic control unit for controlling the power train. The electric storage system and the electric motor/generator are connectable to one or more electrical loads for driving the vehicle.Type: ApplicationFiled: November 8, 2011Publication date: September 25, 2014Applicant: VOLVO LASTVAGNAR ABInventor: Henrik Engdahl