Patents by Inventor Anders Hedman

Anders Hedman 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: 20240133448
    Abstract: A transmission for a vehicle includes a first input shaft, a second input shaft, an output shaft, a planetary gear set arranged on the output shaft, including a sun gear, planet carrier and ring gear, an output shaft first gearwheel, an output shaft second gearwheel, wherein the first input shaft gearwheel is drivingly connected with the output shaft first gearwheel and the second input shaft gearwheel is drivingly connected with the output shaft second gearwheel, wherein the output shaft second gearwheel is permanently connected to the sun gear and rotatable with respect to the output shaft, the output shaft first gearwheel is rotatable with respect to the output shaft, and the output shaft first gearwheel is further engageable with the output shaft in a first gear mode and engageable with the output shaft second gearwheel in a second gear mode.
    Type: Application
    Filed: June 7, 2021
    Publication date: April 25, 2024
    Inventors: Johan FOLKESSON, Richard TORSEIN, Anders HEDMAN
  • Patent number: 11953086
    Abstract: The invention relates to a lubricating device for controlling lubrication in a stepped transmission comprising a splitter section (10, 20) with an input shaft (I) and a main gear section (30, 40, 50, 60) with an output shaft (O) and a countershaft (C); where the splitter section (10, 20) comprises a first splitter gear set (10) connectable to the input shaft (I) by a first gear shift mechanism (23); and a second splitter gear set (20) connectable to the input shaft (I) by the first gear shift mechanism (23); and connectable to the output shaft (O) by a second gear shift mechanism (33). A lubrication arrangement for the second splitter gear set (20) is arranged to be controlled by the current positions of the first and the second gear shift mechanisms (23, 33); wherein the lubrication arrangement is controlled to at least reduce lubrication when the first and the second gear shift mechanisms (23, 33) are simultaneously connected to or disconnected from the second splitter gear set (20).
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: April 9, 2024
    Assignee: Volvo Truck Corporation
    Inventor: Anders Hedman
  • Publication number: 20240060548
    Abstract: A transmission for a vehicle includes: an input shaft, a main shaft, and a countershaft, the main shaft being coaxial with the input shaft and the countershaft being parallel therewith, first and second primary gear planes arranged for torque transfer between the input shaft and the countershaft, and at least one secondary gear plane arranged for torque transfer between the countershaft and the main shaft. The transmission further includes a crawler shaft arranged in parallel with the main shaft, wherein the first primary gear plane comprises a first crawler shaft gearwheel arranged on the crawler shaft, and wherein the second primary gear plane comprises a second crawler shaft gearwheel arranged on the crawler shaft, the second crawler shaft gearwheel being selectively rotationally connectable to the first crawler shaft gearwheel so as to engage a crawler gear of the transmission.
    Type: Application
    Filed: June 21, 2023
    Publication date: February 22, 2024
    Inventor: Anders HEDMAN
  • Publication number: 20240060549
    Abstract: A transmission for a vehicle, including an input shaft, a main shaft, and a countershaft, the main shaft being coaxial with the input shaft and the countershaft being parallel therewith, first and second primary gear planes arranged for torque transfer between the input shaft and the countershaft, at least one secondary gear plane arranged for torque transfer between the countershaft and the main shaft. The transmission further includes a reverse shaft arranged in parallel with the main shaft, wherein the first primary gear plane comprises a first reverse shaft gearwheel arranged on the reverse shaft, and wherein the second primary gear plane comprises a second reverse shaft gearwheel arranged on the reverse shaft, the second reverse shaft gearwheel being selectively rotationally connectable to the first reverse shaft gearwheel so as to engage a reverse gear of the transmission.
    Type: Application
    Filed: August 17, 2023
    Publication date: February 22, 2024
    Inventor: Anders Hedman
  • Patent number: 11852222
    Abstract: A transmission assembly for a vehicle, includes a first input shaft gear wheel arranged on a first input shaft, a second input shaft first gear wheel and a second input shaft second gear wheel arranged axially offset with respect to each other on a second input shaft, an output shaft first gear wheel and an output shaft second gear wheel arranged axially offset with respect to each other on a common output shaft. The second input shaft first gear wheel meshes with the output shaft first gear wheel, and the first input shaft gear wheel and the second input shaft second gear wheel mesh with the output shaft second gear wheel. A first torque path is provided from the first input shaft to the output shaft.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: December 26, 2023
    Assignee: VOLVO TRUCK CORPORATION
    Inventor: Anders Hedman
  • Patent number: 11794574
    Abstract: A transmission comprises a first input shaft, a second input shaft, an output shaft, and an intermediate shaft. A first input shaft gearwheel, a second input shaft gearwheel, a first intermediate shaft gearwheel, a second intermediate shaft gearwheel, a first output shaft gearwheel drivingly connected to the first input shaft gearwheel, a second output shaft gearwheel in meshing engagement with the first intermediate shaft gearwheel, and a third output shaft gearwheel in meshing engagement with the second intermediate shaft gearwheel, are provided.
    Type: Grant
    Filed: June 8, 2022
    Date of Patent: October 24, 2023
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Anders Hedman, Johan Folkesson
  • Publication number: 20230313865
    Abstract: A transmission for a vehicle includes a first input shaft, a second input shaft, a countershaft, a main shaft, and an output shaft, a first gear plane including a first input shaft gearwheel, a first main gearwheel, and a first countershaft gearwheel, and a second gear plane including a second input shaft gearwheel, a second main gearwheel, a second countershaft gearwheel, a first gear engaging device, a second gear engaging device, wherein the output shaft is drivingly connectable to the main shaft, and wherein the transmission is configured to only enable transfer of torque between the first input shaft and the output shaft via the main shaft, and to only enable transfer of torque between the second input shaft and the output shaft via the main shaft.
    Type: Application
    Filed: February 9, 2023
    Publication date: October 5, 2023
    Inventors: Anders Hedman, Johan Folkesson, Sven Norberg
  • Publication number: 20230220908
    Abstract: A transmission assembly for a vehicle, includes a first input shaft gear wheel arranged on a first input shaft, a second input shaft first gear wheel and a second input shaft second gear wheel arranged axially offset with respect to each other on a second input shaft, an output shaft first gear wheel and an output shaft second gear wheel arranged axially offset with respect to each other on a common output shaft. The second input shaft first gear wheel meshes with the output shaft first gear wheel, and the first input shaft gear wheel and the second input shaft second gear wheel mesh with the output shaft second gear wheel. A first torque path is provided from the first input shaft to the output shaft.
    Type: Application
    Filed: November 5, 2019
    Publication date: July 13, 2023
    Inventor: Anders Hedman
  • Publication number: 20230175578
    Abstract: A vehicle transmission includes: a first and second input shaft (IS), a countershaft, a main shaft, and an output shaft, a first gear plane (GP) comprising a first IS gearwheel (ISG), a first main gearwheel (MG), and a first countershaft gearwheel (CG), a second GP comprising a second ISG, a second MG, and a second CG, the first CG connectable to the second CG, a range gear comprising at least a first, second, and third range gear component (RGC), the first RGC connected to the output shaft, a first gear engaging device (GED) settable to: a state connecting the first MG to the first RGC, a neutral state, and a state connecting the first MG to the second RGC, a second GED settable to at least: a state connecting the second MG to the second RGC, a neutral state.
    Type: Application
    Filed: November 8, 2022
    Publication date: June 8, 2023
    Inventors: Johan Folkesson, Anders Hedman, Sven Norberg
  • Patent number: 11662015
    Abstract: An arrangement for lubricating a gear in a toothed gearing comprising a shaft on which the gear is arranged is provided. An engaging ring with a central portion is arranged around said shaft and comprises a surface facing and spaced from an end surface of the gear creating a gap for guiding lubricant to the gear, and at least one first duct for lubricant, whereby said duct has at least one opening into the gap. The component comprises an annular portion with an inner peripheral surface mounted onto an outer peripheral surface of a shoulder on the gear; where axial discontinuities are provided between the shoulder and the annular portion of the component for guiding and distributing lubricant to the roots of the gear.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: May 30, 2023
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Henrik Hagerman, Anders Hedman, Anna Wikström
  • Publication number: 20230132022
    Abstract: The invention relates to a vehicle powertrain, comprising: first and second power units (PUs), a propeller shaft, (PS) a power take-off, (PTO), a transmission comprising: first and second input shafts connected to the PUs, an output shaft connected to the PS, and a countershaft connected to the PTO, first and second input shaft gearwheels (ISGs) on the input shafts, first and second countershaft gearwheels (CSGs), the first CSG being in driving connection with the second ISG, first, second and third output shaft gearwheels (OSGs) in driving connection with the first ISG and the first and second CSGs, first and second gear engaging devices (GEDs), wherein, in a mode of operation, the first GED rotationally connects the first OS G to the output shaft, and the second GED rotationally disconnects the output shaft from the second and third OSGs, no parts of the powertrain being drivingly connected to both of the PUs.
    Type: Application
    Filed: October 5, 2022
    Publication date: April 27, 2023
    Inventors: Johan Folkesson, Anders Hedman
  • Publication number: 20230023243
    Abstract: An arrangement for lubricating a gear in a toothed gearing comprising a shaft on which the gear is arranged is provided. An engaging ring with a central portion is arranged around said shaft and comprises a surface facing and spaced from an end surface of the gear creating a gap for guiding lubricant to the gear, and at least one first duct for lubricant, whereby said duct has at least one opening into the gap. The component comprises an annular portion with an inner peripheral surface mounted onto an outer peripheral surface of a shoulder on the gear; where axial discontinuities are provided between the shoulder and the annular portion of the component for guiding and distributing lubricant to the roots of the gear.
    Type: Application
    Filed: July 7, 2022
    Publication date: January 26, 2023
    Inventors: Henrik Hagerman, Anders Hedman, Anna Wikström
  • Publication number: 20220396144
    Abstract: A transmission comprises a first input shaft, a second input shaft, an output shaft, and an intermediate shaft. A first input shaft gearwheel, a second input shaft gearwheel, a first intermediate shaft gearwheel, a second intermediate shaft gearwheel, a first output shaft gearwheel drivingly connected to the first input shaft gearwheel, a second output shaft gearwheel in meshing engagement with the first intermediate shaft gearwheel, and a third output shaft gearwheel in meshing engagement with the second intermediate shaft gearwheel, are provided.
    Type: Application
    Filed: June 8, 2022
    Publication date: December 15, 2022
    Inventors: Anders HEDMAN, Johan Folkesson
  • Publication number: 20220381323
    Abstract: A transmission assembly for a vehicle includes a first input shaft, a second input shaft and a common output shaft, a first input shaft first gear wheel and a first input shaft second gear wheel arranged axially offset with respect to each other on the first input shaft, a second input shaft first gear wheel and a second input shaft second gear wheel arranged axially offset with respect to each other on the second input shaft, an output shaft first gear wheel and an output shaft second gear wheel arranged axially offset with respect to each other on the common output shaft, wherein each one of the first input shaft first gear wheel and the second input shaft first gear wheel is meshing with the output shaft first gear wheel.
    Type: Application
    Filed: November 5, 2019
    Publication date: December 1, 2022
    Inventor: Anders HEDMAN
  • Patent number: 11421776
    Abstract: The present invention relates to an auxiliary transmission brake arrangement (100) for a transmission (10) of a vehicle. In particular, the invention relates to an auxiliary transmission brake arrangement comprising a lubrication arrangement for improved lubrication of gear wheels connecting the auxiliary transmission brake arrangement to an output shaft.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: August 23, 2022
    Assignee: VOLVO TRUCK CORPORATION
    Inventor: Anders Hedman
  • Patent number: 11137039
    Abstract: The present invention relates to a method for controlling a clutch arrangement (102) of a vehicle transmission (100) arranged within a gearbox housing (104) of a vehicle, the clutch arrangement being connected to a pneumatically controlled actuator arrangement (106) for controllably arrange the clutch arrangement between a closed position and an open position, wherein the vehicle transmission further comprises at least one rotatable transmission component (108, 108?, 108?) configured to assume an engaged state, a disengaged state and an at least partially engaged state. By means of the method, the rotatable transmission component is arranged to be positioned in the at least partially engaged state for increasing the heat within the gearbox housing.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: October 5, 2021
    Assignee: VOLVO TRUCK CORPORATION
    Inventors: Fredrik Karpenman, Anders Hedman
  • Patent number: 11035457
    Abstract: The present invention relates to a bearing arrangement (104) connectable to a shaft (102), the bearing arrangement comprising a bearing (105, 105?) comprising a plurality of rolling elements (110) arranged to rotate relative to an inner raceway (302) for said bearing arrangement; and a ring shaped contact element (114, 114?) having an extension in an axial direction thereof, the ring shaped contact element further comprising a first contact surface (402) adapted to face the plurality of rolling elements, wherein an inner diameter of the ring shaped contact element at the axial position of the first contact surface has a larger diameter in comparison to a diameter (412) of the inner raceway, such that a continuous radial gap (414) is provided in the circumferential direction between the ring shaped contact element and the inner raceway when the bearing arrangement is connected to the shaft, wherein the radial gap (414) is arranged to be provided in fluid communication with a lubricating flow channel (306) of t
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: June 15, 2021
    Assignee: VOLVO TRUCK CORPORATION
    Inventor: Anders Hedman
  • Publication number: 20210172510
    Abstract: The present invention relates to an auxiliary transmission brake arrangement (100) for a transmission (10) of a vehicle. In particular, the invention relates to an auxiliary transmission brake arrangement comprising a lubrication arrangement for improved lubrication of gear wheels connecting the auxiliary transmission brake arrangement to an output shaft.
    Type: Application
    Filed: December 21, 2017
    Publication date: June 10, 2021
    Applicant: VOLVO TRUCK CORPORATION
    Inventor: Anders HEDMAN
  • Publication number: 20210054921
    Abstract: The invention relates to a lubricating device for controlling lubrication in a stepped transmission comprising a splitter section (10, 20) with an input shaft (I) and a main gear section (30, 40, 50, 60) with an output shaft (O) and a countershaft (C); where the splitter section (10, 20) comprises a first splitter gear set (10) connectable to the input shaft (I) by a first gear shift mechanism (23); and a second splitter gear set (20) connectable to the input shaft (I) by the first gear shift mechanism (23); and connectable to the output shaft (O) by a second gear shift mechanism (33). A lubrication arrangement for the second splitter gear set (20) is arranged to be controlled by the current positions of the first and the second gear shift mechanisms (23, 33); wherein the lubrication arrangement is controlled to at least reduce lubrication when the first and the second gear shift mechanisms (23, 33) are simultaneously connected to or disconnected from the second splitter gear set (20).
    Type: Application
    Filed: January 22, 2018
    Publication date: February 25, 2021
    Inventor: Anders Hedman
  • Patent number: 10859129
    Abstract: The present invention relates to a method for disconnecting a valve unit (302) from a pneumatically controlled actuator arrangement (208, 210) of a vehicle transmission (100), said transmission comprising at least one clutch arrangement (202, 204), a pneumatically controlled actuator arrangement (208, 210) arranged to controllably position the at least one clutch arrangement between a closed position and an opened position, and a valve unit (302) mechanically connected to the pneumatically controlled actuator arrangement (208, 210), the method comprising the steps of positioning (S1) the valve unit (302) in an opened state for providing compressed air to the pneumatically controlled actuator arrangement (208, 210); and subsequently disconnecting (S4) the valve unit (304) from the pneumatically controlled actuator arrangement (208, 210).
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: December 8, 2020
    Assignee: VOLVO TRUCK CORPORATION
    Inventor: Anders Hedman