Patents by Inventor Roland Kvist

Roland Kvist 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: 20240132338
    Abstract: The disclosure relates to a computer-implemented method for managing a mobile hydrogen refuelling system, the mobile hydrogen refuelling system comprising a hydrogen refuelling vehicle, a hydrogen supply vehicle, and a management system, wherein the method comprises obtaining from the hydrogen refuelling vehicle a first set of data relating to the hydrogen refuelling vehicle, obtaining from the hydrogen supply vehicle a second set of data relating to the hydrogen supply vehicle, in the management system, and obtaining map data relating to an area of operation of said hydrogen refuelling vehicle and said hydrogen supply vehicle. Further, the method comprises determining a resupply location based on said first set of data, said second set of data and said map data, and providing the hydrogen refuelling vehicle and/or the hydrogen supply vehicle with navigation instructions to the resupply location for resupplying the hydrogen refuelling vehicle with hydrogen from the hydrogen supply vehicle.
    Type: Application
    Filed: September 26, 2023
    Publication date: April 25, 2024
    Inventors: Johanna Bergström, Roland Kvist
  • Publication number: 20230396075
    Abstract: The present disclosure relates to a method of controlling electric charging of at least two electrically powered machines. The method is performed by a charging station comprising a plurality of electric energy sources, a charging interface for electrically connecting with an electrically powered machine, and a control unit. The method comprises collecting data about each one of the at least two electrically powered machines and obtaining a status of each one of the plurality of electric energy sources. The method further comprises determining a charging strategy based on the collected data, the obtained status and on a pre-determined charging focus of the charging strategy, and subsequently charging the at least two electrically powered machines according to the determined charging strategy. The present disclosure further relates to a control unit, a charging station and a vehicle or vessel comprising the charging station.
    Type: Application
    Filed: June 1, 2023
    Publication date: December 7, 2023
    Inventors: Roland Kvist, Johanna Bergström, Bo Larsson
  • Publication number: 20230391185
    Abstract: The present disclosure relates to a gas consumer system for a vehicle, the gas consumer system being configured to generate power by consuming gas, the gas consumer system comprising a gas consumer comprising an inlet configured to receive a flow of gas, at least one gas tank, the gas tank comprising a gas tank outlet, a conduit connecting the gas tank outlet of the tank to the inlet of the gas consumer, and an elongated sleeve attached to the inlet of the gas consumer and to the gas tank outlet of the gas tank, wherein the conduit is housed within the elongated sleeve, the elongated sleeve comprising a sleeve outlet configured to convey leakage of gas between the gas consumer and the gas tank away from the gas consumer system.
    Type: Application
    Filed: May 23, 2023
    Publication date: December 7, 2023
    Inventors: Roland Kvist, Gordon Ekman, Kim Örkenrud
  • Publication number: 20230286417
    Abstract: A heat management system for a fuel cell vehicle propelled by an electric traction motor includes a fuel cell system comprising a fuel cell configured to generate electric power when receiving hydrogen through a hydrogen inlet and oxygen through an oxygen inlet, wherein the fuel cell includes an outlet configured to expel exhaust water formed in the fuel cell, and a compressor including an inlet configured to receive ambient air, and an outlet, wherein the inlet of the compressor is arranged in downstream fluid communication with the outlet of the fuel cell and configured to pressurize a mixture of exhaust water expelled from the fuel cell and ambient air.
    Type: Application
    Filed: March 7, 2023
    Publication date: September 14, 2023
    Inventors: Gordon Ekman, Roland Kvist
  • Publication number: 20230194052
    Abstract: The disclosure relates to an electrically powered mobile fluid supply system (MFSS) for supplying fluid to a host unit. The MFSS comprises at least one pressurized fluid volume, a fluid dispenser fluidly connectable to the host unit and configured to supply fluid from the at least one pressurized fluid volume to the host unit in a fluid supply operation, and at least one compressor configured to build sufficient pressure for the fluid supply operation in the MFSS. The MFSS is configured to be electrically connected to the host unit and the at least one compressor is configured to be electrically connected to the MFSS and electrically powered by the host unit during the fluid supply operation. The disclosure further relates to a method for supplying fluid to a host unit, to a control unit configured to control the fluid supply operation, and to the MFSS.
    Type: Application
    Filed: November 21, 2022
    Publication date: June 22, 2023
    Inventors: Johanna Bergström, Roland Kvist
  • Publication number: 20230197987
    Abstract: A hydrogen gas supply system for a hydrogen consuming energy converter arranged onto a vehicle comprising a plurality of tanks for storage of pressurized hydrogen gas, wherein each tank is provided with a valve configured to control the flow of hydrogen from the corresponding tank into a flow line connected to the hydrogen consuming energy converter, wherein the plurality of tanks comprises one or more primary tanks, each of which being provided with a corresponding primary hydrogen flow control valve, the plurality of tanks further comprising a secondary tank provided with a corresponding secondary hydrogen flow control valve, wherein the hydrogen gas supply system is arranged so that the secondary tank contains a smaller maximum working amount of pressurized hydrogen, and/or so that the flow of hydrogen from the secondary tank is restricted.
    Type: Application
    Filed: December 20, 2022
    Publication date: June 22, 2023
    Inventors: Roland KVIST, Gordon EKMAN
  • Publication number: 20230182573
    Abstract: A braking system for a vehicle at least partially propelled by an electric traction motor electrically connected to an electric power system. The braking system comprises an electric machine configured to be electrically connected to the electric power system, the electric machine comprising a first output shaft and a second output shaft, an air blower controllably connected to the first output shaft by a clutch, the clutch being controllable between an open position in which no power is transmitted from the electric machine to the air blower, and a closed position in which power is transmitted from the electric machine to the air blower, and a fluid pump operatively connected to the electric machine via the second output shaft, wherein the fluid pump is arranged in upstream fluid communication with a fluidly operated member and in downstream fluid communication with a fluid tank.
    Type: Application
    Filed: December 6, 2022
    Publication date: June 15, 2023
    Inventors: Roland Kvist, Tove Audhav, Gordon Ekman, Joakim Haegerstam
  • Publication number: 20230144575
    Abstract: A working machine is provided, comprising a working machine frame structure, at least one electric machine configured to propel the working machine, a re-chargeable energy storage system electrically connected to the at least one electric machine, the at least one electric machine being operable by electric power received from the re-chargeable energy storage system, a load implement body configured to receive a load and being pivotably connected to the working machine frame structure at a pivot joint, and an electrical charge element electrically connected to the re-chargeable energy storage system, the electrical charge element being arranged on a surface portion of the load implement body and configured to, in a charging state, receive electric power from a vertically elevated power source, wherein the working machine is configured to bring the electrical charge element into the charging state by rotation of the load implement body around the pivot joint.
    Type: Application
    Filed: October 18, 2022
    Publication date: May 11, 2023
    Inventor: Roland Kvist
  • Publication number: 20230114716
    Abstract: A material transportation system for a working machine is provided. The material transportation system comprises a load implement body with a plurality of air flow channels. The air flow channels comprise a set of heat insulated air flow channels, and a set of heat transfer channels, wherein each air flow channel of the set of heat insulated air flow channels comprises a heat insulating structure. When the temperature level of the load implement body is below a predetermined threshold limit, pressurized air is directed to the set of heat transfer channels.
    Type: Application
    Filed: October 4, 2022
    Publication date: April 13, 2023
    Inventors: Roland Kvist, Tove Audhav, Gordon Ekman, Joakim Haegerstam
  • Patent number: 11008054
    Abstract: A method of preventing a rollover situation for an articulated vehicle, specifically in relation to the forward vehicle section of the articulated vehicle, is disclosed. A corresponding control unit and a computer program for such an articulated vehicle is also disclosed.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: May 18, 2021
    Assignee: Volvo Construction Equipment AB
    Inventor: Roland Kvist
  • Publication number: 20200216120
    Abstract: A method of preventing a rollover situation for an articulated vehicle, specifically in relation to the forward vehicle section of the articulated vehicle, is disclosed. A corresponding control unit and a computer program for such an articulated vehicle is also disclosed.
    Type: Application
    Filed: May 15, 2017
    Publication date: July 9, 2020
    Inventor: Roland Kvist
  • Patent number: 9802610
    Abstract: A method is provided for controlling the speed of a vehicle that includes a drive train for driving the vehicle and a predetermined preferred speed set. The method includes determining whether or not a substantially constant speed of the vehicle is requested, if it is determined that a substantially constant speed is requested, determining whether the requested speed lies within or outside of the predetermined preferred speed set, and if it is determined that the requested speed lies outside of the predetermined speed set, automatically adjusting the speed of the vehicle to a vehicle speed that is within the predetermined speed set.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: October 31, 2017
    Assignee: Volvo Construction Equipment AB
    Inventor: Roland Kvist
  • Publication number: 20170191865
    Abstract: A control unit is provided for controlling a vehicle including a platform for carrying a load and an engine system for controlling an engine of the vehicle, wherein the control unit is configured to receive a signal, from at least one weight indication means of the vehicle, the signal being indicative of a weight of a load on the platform; compare the received indicated weight of the load on the platform with a predetermined threshold value. The control unit is further configured to provide an engine start-up signal to the engine system of the vehicle if the received indicated weight of the load on the platform is above the predetermined threshold value.
    Type: Application
    Filed: June 17, 2014
    Publication date: July 6, 2017
    Applicant: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventor: Roland KVIST
  • Publication number: 20150367849
    Abstract: A method is provided for controlling the speed of a vehicle that includes a drive train for driving the vehicle and a predetermined preferred speed set. The method includes determining whether or not a substantially constant speed of the vehicle is requested, if it is determined that a substantially constant speed is requested, determining whether the requested speed lies within or outside of the predetermined preferred speed set, and if it is determined that the requested speed lies outside of the predetermined speed set, automatically adjusting the speed of the vehicle to a vehicle speed that is within the predetermined speed set.
    Type: Application
    Filed: October 27, 2011
    Publication date: December 24, 2015
    Applicant: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventor: Roland Kvist
  • Patent number: 8899362
    Abstract: A work machine includes a front section with a front frame, a first set of ground engaging members and a power source for propelling the work machine, a rear section with a rear frame, a second set of ground engaging members and a load-carrying container. The rear section includes an electric drive system adapted for driving at least one ground engaging member of the second set. The rear section is detachably connected to the front section. The power source of the front section is adapted to power the electric drive system in the rear section in an attached state of the front and rear sections. The electric drive system is adapted for driving the at least one ground engaging member of the second set for self-propelling of the rear section in a detached state.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: December 2, 2014
    Assignee: Volvo-Construction Equipment AB
    Inventors: Roland Kvist, Marcus Miller, Kajsa Dymling, Jonas Thoursie, Per-Olof Bergqvist
  • Patent number: 8490728
    Abstract: A work machine includes a front section with a front frame and a first set of ground engaging members, a rear section with a rear frame and a second set of ground engaging members, and at least one pivot joint between the front section and the rear section allowing the front section to pivot with regard to the rear section. One of the front section and the rear section includes a power source, and the other of the front section and the rear section includes at least one electric motor adapted for driving at least one of the ground engaging members.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: July 23, 2013
    Assignee: Volvo Construction Equipment AB
    Inventor: Roland Kvist
  • Patent number: 8267480
    Abstract: A method for controlling a vehicle including a dump body includes automatically monitoring the contents of the dump body during an elevating motion, determining when the dump body has reached a predefined condition during the elevating motion, and controlling the vehicle when it is determined that the dump body has reached the predefined condition.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: September 18, 2012
    Assignee: Volvo Construction Equipment AB
    Inventors: Roland Kvist, Marcus Miller
  • Publication number: 20110005848
    Abstract: A work machine includes a front section with a front frame, a first set of ground engaging members and a power source for propelling the work machine, a rear section with a rear frame, a second set of ground engaging members and a load-carrying container. The rear section includes an electric drive system adapted for driving at least one ground engaging member of the second set. The rear section is detachably connected to the front section. The power source of the front section is adapted to power the electric drive system in the rear section in an attached state of the front and rear sections. The electric drive system is adapted for driving the at least one ground engaging member of the second set for self-propelling of the rear section in a detached state.
    Type: Application
    Filed: February 26, 2009
    Publication date: January 13, 2011
    Applicant: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventors: Roland Kvist, Marcus Miller, Kajsa Dymling, Jonas Thoursie, Per-Olof Bergqvist
  • Publication number: 20100327649
    Abstract: A method for controlling a vehicle including a dump body includes automatically monitoring the contents of the dump body during an elevating motion, determining when the dump body has reached a predefined condition during the elevating motion, and controlling the vehicle when it is determined that the dump body has reached the predefined condition.
    Type: Application
    Filed: July 11, 2007
    Publication date: December 30, 2010
    Applicant: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventors: Roland Kvist, Marcus Miller
  • Publication number: 20100307846
    Abstract: A work machine includes a front section with a front frame and a first set of ground engaging members, a rear section with a rear frame and a second set of ground engaging members, and at least one pivot joint between the front section and the rear section allowing the front section to pivot with regard to the rear section. One of the front section and the rear section includes a power source, and the other of the front section and the rear section includes at least one electric motor adapted for driving at least one of the ground engaging members.
    Type: Application
    Filed: February 29, 2008
    Publication date: December 9, 2010
    Applicant: Volvo Construction Equipment AB
    Inventor: Roland Kvist