Patents by Inventor Per Mattsson

Per Mattsson 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: 20240117878
    Abstract: The present disclosure relates to a transmission arrangement. The transmission arrangement comprises at least a first and a second planetary gear set and a first and a second brake mechanism respectively configured to optionally apply a braking torque to a respective member of the respective planetary gear set. Each one of the first and second brake mechanisms comprises a respective brake disc, a normally disengaged brake for acting on the brake disc, and a normally engaged brake for acting on the brake disc.
    Type: Application
    Filed: September 28, 2023
    Publication date: April 11, 2024
    Inventor: Per Mattsson
  • Publication number: 20240100942
    Abstract: A transmission arrangement including a first planetary gear set comprising a first sun gear, a first ring gear and a first planet carrier; a second planetary gear set comprising a second sun gear, a second ring gear and a second planet carrier; a third planetary gear set comprising a third sun gear, a third ring gear and a third planet carrier; an input shaft being operatively connected to the second and third sun gears; a first intermediate shaft operatively connected to the first ring gear and to the second planet carrier; a gear selection arrangement; a first output shaft to be connected to a first driven axle, a second output shaft to be connected to a second driven axle, and a differential unit configured to distribute torque to the first and second output shafts.
    Type: Application
    Filed: September 15, 2023
    Publication date: March 28, 2024
    Inventors: Per Mattsson, Peter Johansson
  • Patent number: 11885103
    Abstract: A power system for a working machine, including a prime mover drivingly connectable to a main shaft; a planetary gear set including a rotatable first member drivingly connected to the main shaft, a rotatable second member and a rotatable third member for propulsion of the working machine; a hydraulic system including at least one hydraulic actuator for performing a working function of the working machine; an electric energy storage system; a first hydraulic machine mechanically coupled to the main shaft and hydraulically coupled to the hydraulic system; a first electric machine mechanically coupled to the main shaft; a second electric machine mechanically coupled to the rotatable second member, wherein the electric energy storage system is electrically connected to the first and second electric machines, and wherein the power system further includes a second hydraulic machine mechanically coupled to the rotatable second member and hydraulically coupled to the hydraulic system.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: January 30, 2024
    Assignee: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventors: Karl Uebel, Per Mattsson, Daniel Stålberg
  • Patent number: 11859368
    Abstract: An electric powertrain for a working machine, including: a first electric machine, a second electric machine, a propulsion axle for propulsion of the working machine, a transmission assembly comprising: a first input shaft drivingly connected to the first electric machine, a second input shaft drivingly connected to the second electric machine, a first output shaft drivingly connected to the propulsion axle, the first and the second input shafts being selectively drivingly connectable to the first output shaft, at least one second output shaft for power take-off, to which the second input shaft is drivingly connected, a set of gears including at least two selectable gear ratios for transfer of torque, wherein at least the first input shaft is drivingly connectable to the first output shaft via the set of gears.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: January 2, 2024
    Assignee: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventors: Daniel Stålberg, Per Mattsson
  • Publication number: 20230382221
    Abstract: The present invention relates to a driveline arrangement comprising a first driveline comprising a first electric machine and a first transmission arrangement, the first driveline being configured to propel a first pair of wheels at a speed range between zero speed and a maximum speed limit of the working machine, a second driveline comprising a second electric machine and a second transmission arrangement, the second driveline being configured to propel a second pair of wheels at a speed range between zero speed and a predetermined threshold speed limit of the working machine, wherein the predetermined threshold speed limit is lower than the maximum speed limit, and a control unit connected to the first and second drivelines, the control unit comprising control circuitry configured to control the second driveline to assume a disengaged state in which the second driveline is disconnected from propelling the second pair of wheels when a speed of the working machine exceeds the predetermined threshold speed lim
    Type: Application
    Filed: April 27, 2023
    Publication date: November 30, 2023
    Inventors: Per-Anders Sköldberg, Per Mattsson
  • Patent number: 11808331
    Abstract: A transmission assembly includes a common ring gear assembly, a first sun gear, a first planet carrier, a second sun gear and a second planet carrier. A set of planet gears of each one of the first and second planet carriers meshing with the common ring gear assembly. The set of planet gears of the first planet carrier meshing with the first sun gear and the set of planet gears of the second planet carrier meshing with the second sun gear. The transmission assembly further includes a transmission housing. The second sun gear is adapted to be connected to a transmission input shaft; the common ring gear assembly is adapted to be connected to a transmission output shaft, and the second planet carrier and the first sun gear are operatively connected to each other.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: November 7, 2023
    Assignee: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventors: Per Mattsson, Mathias Lehikoinen
  • Patent number: 11739816
    Abstract: A transmission arrangement includes a transmission housing including a transmission housing wall assembly defining a transmission housing cavity enclosing at least a first and a second planetary gear set, wherein at least an external portion of each one of a first and second locking mechanisms of the planetary gear sets is located on one side of the transmission housing wall assembly and the transmission housing cavity is located on an opposite side of the transmission housing wall assembly.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: August 29, 2023
    Assignee: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventors: Per Mattsson, Mathias Lehikoinen
  • Publication number: 20230135081
    Abstract: A power system for a working machine, including a prime mover drivingly connectable to a main shaft; a planetary gear set including a rotatable first member drivingly connected to the main shaft, a rotatable second member and a rotatable third member for propulsion of the working machine; a hydraulic system including at least one hydraulic actuator for performing a working function of the working machine; an electric energy storage system; a first hydraulic machine mechanically coupled to the main shaft and hydraulically coupled to the hydraulic system; a first electric machine mechanically coupled to the main shaft; a second electric machine mechanically coupled to the rotatable second member, wherein the electric energy storage system is electrically connected to the first and second electric machines, and wherein the power system further includes a second hydraulic machine mechanically coupled to the rotatable second member and hydraulically coupled to the hydraulic system.
    Type: Application
    Filed: May 4, 2020
    Publication date: May 4, 2023
    Inventors: Karl Uebel, Per Mattsson, Daniel Stålberg
  • Publication number: 20230029811
    Abstract: An electric powertrain for a working machine, including: a first electric machine, a second electric machine, a propulsion axle for propulsion of the working machine, a transmission assembly comprising: a first input shaft drivingly connected to the first electric machine, a second input shaft drivingly connected to the second electric machine, a first output shaft drivingly connected to the propulsion axle, the first and the second input shafts being selectively drivingly connectable to the first output shaft, at least one second output shaft for power take-off, to which the second input shaft is drivingly connected, a set of gears including at least two selectable gear ratios for transfer of torque, wherein at least the first input shaft is drivingly connectable to the first output shaft via the set of gears.
    Type: Application
    Filed: December 19, 2019
    Publication date: February 2, 2023
    Inventors: Daniel STÅLBERG, Per MATTSSON
  • Patent number: 11566398
    Abstract: A transmission arrangement comprises a first planetary gear set, a second planetary gear set, a third planetary gear set, an input shaft connectable to a prime mover, the input shaft being operatively connected to a sun gear of the second planetary gear set and to a sun gear of the third planetary gear set, an output shaft operatively connected to a ring gear of the first planetary gear set and to a planet carrier of the second planetary gear set. The transmission arrangement further includes a gear selection arrangement including a first locking mechanism connected to a planet carrier of the first planetary gear set, a second locking mechanism connected to a sun gear of the first planetary gear set, a ring gear of the second planetary gear set and to a planet carrier of the third planetary gear set, and a third locking mechanism.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: January 31, 2023
    Assignee: Volvo Construction Equipment AB
    Inventors: Per Mattsson, Mathias Lehikoinen
  • Publication number: 20220389989
    Abstract: A transmission assembly includes a common ring gear assembly, a first sun gear, a first planet carrier, a second sun gear and a second planet carrier. A set of planet gears of each one of the first and second planet carriers meshing with the common ring gear assembly. The set of planet gears of the first planet carrier meshing with the first sun gear and the set of planet gears of the second planet carrier meshing with the second sun gear. The transmission assembly further includes a transmission housing. The second sun gear is adapted to be connected to a transmission input shaft; the common ring gear assembly is adapted to be connected to a transmission output shaft, and the second planet carrier and the first sun gear are operatively connected to each other.
    Type: Application
    Filed: October 22, 2020
    Publication date: December 8, 2022
    Inventors: Per Mattsson, Mathias Lehikoinen
  • Publication number: 20220332186
    Abstract: A driveline arrangement, comprises a first electric machine, and a continuously variable torque distribution arrangement configured to controllably direct a torque from the first electric machine to a front wheel axle and at least one rear wheel axle, the continuously variable torque distribution arrangement including a main shaft connectable to the first electric machine and to the at least one rear wheel axle, a primary planetary gear set including a primary sun gear, a primary ring gear and a primary planet carrier carrying a set of planet gear units, wherein the planet gear units are in meshing engagement with the primary sun gear and the primary ring gear, a second electric machine connected to the primary sun gear, and a gear stage including a first gear wheel operatively connected to the primary ring gear, and a second gear wheel connectable to the front wheel axle.
    Type: Application
    Filed: April 13, 2022
    Publication date: October 20, 2022
    Inventor: Per MATTSSON
  • Publication number: 20220333341
    Abstract: A transmission arrangement, comprises a first planetary gear set, a second planetary gear set, a third planetary gear set, an input shaft connectable to a prime mover, the input shaft being operatively connected to a sun gear of the second planetary gear set and to a sun gear of the third planetary gear set, an output shaft operatively connected to a ring gear of the first planetary gear set and to a planet carrier of the second planetary gear set. The transmission arrangement further includes a gear selection arrangement including a first locking mechanism connected to a planet carrier of the first planetary gear set, a second locking mechanism connected to a sun gear of the first planetary gear set, a ring gear of the second planetary gear set and to a planet carrier of the third planetary gear set, and a third locking mechanism.
    Type: Application
    Filed: April 13, 2022
    Publication date: October 20, 2022
    Inventors: Per MATTSSON, Mathias LEHIKOINEN
  • Publication number: 20220333670
    Abstract: A transmission arrangement includes a transmission housing including a transmission housing wall assembly defining a transmission housing cavity enclosing at least a first and a second planetary gear set, wherein at least an external portion of each one of a first and second locking mechanisms of the planetary gear sets is located on one side of the transmission housing wall assembly and the transmission housing cavity is located on an opposite side of the transmission housing wall assembly.
    Type: Application
    Filed: April 13, 2022
    Publication date: October 20, 2022
    Inventors: Per MATTSSON, Mathias LEHIKOINEN
  • Patent number: 11267330
    Abstract: A hybrid system for a vehicle including a hybrid machine and a transmission arrangement that includes a first, a second and a third planetary gear set each including a sun gear, a planet carrier and a ring gear, the transmission arrangement further including five shift elements engageable in combinations of two to obtain six forward gear stages, wherein the ring gear of the first planetary gear set and the planet carrier of the second planetary gear set are operatively connected to each other, the ring gear of the second planetary gear set and the planet carrier of the third planetary gear set are operatively connected to each other, two planetary members of the third planetary gear set are selectively connectable to each other by a single one of the shift elements, wherein the hybrid machine and the ring gear of the first planetary gear set are connected to each other.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: March 8, 2022
    Assignee: Volvo Construction Equipment AB
    Inventors: Per Mattsson, Mathias Lehikoinen
  • Publication number: 20210252963
    Abstract: A hybrid system for a vehicle including a hybrid machine and a transmission arrangement that includes a first, a second and a third planetary gear set each including a sun gear, a planet carrier and a ring gear, the transmission arrangement further including five shift elements engageable in combinations of two to obtain six forward gear stages, wherein the ring gear of the first planetary gear set and the planet carrier of the second planetary gear set are operatively connected to each other, the ring gear of the second planetary gear set and the planet carrier of the third planetary gear set are operatively connected to each other, two planetary members of the third planetary gear set are selectively connectable to each other by a single one of the shift elements, wherein the hybrid machine and the ring gear of the first planetary gear set are connected to each other.
    Type: Application
    Filed: June 13, 2018
    Publication date: August 19, 2021
    Inventors: Per Mattsson, Mathias Lehikoinen
  • Patent number: 11041546
    Abstract: A transmission for a vehicle includes a primary transmission arrangement, a transmission housing, an input shaft, and an output shaft. The primary transmission arrangement includes a first, second and third planetary gear set each including a first, a second and a third planetary member, said planetary members being a sun gear, a planet carrier and a ring gear. The transmission arrangement further includes five shift elements engageable in combinations of two to obtain six forward gear stages, wherein the ring gear of the first planetary gear set and the planet carrier of the second planetary gear set are operatively connected to each other, the ring gear of the second planetary gear set and the planet carrier of the third planetary gear set are operatively connected to each other, and two planetary members of the third planetary gear set are selectively connectable to each other.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: June 22, 2021
    Assignee: Volvo Construction Equipment AB
    Inventors: Per Mattsson, Mathias Lehikoinen
  • Patent number: 10781915
    Abstract: A method is provided for controlling a gear shift from a forward gear to a reverse gear in a transmission arrangement, the method including the steps of: positioning a first locking mechanism and a first connecting mechanism at least in a partially engaged state for reducing a rotational speed of a planet carrier of a second planetary gear set; and positioning a second locking mechanism in an engaged state when a rotational speed of the planet carrier of the second planetary gear set is below a predetermined threshold limit.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: September 22, 2020
    Assignee: Volvo Construction Equipment AB
    Inventors: Jan Dersjö, Per Mattsson, Johnny Arne
  • Patent number: 10639982
    Abstract: A working machine includes a prime mover for supplying torque to the driving wheels of the working machine, and a transmission line arranged between the prime mover and the driving wheels for transmitting torque from the prime mover to the driving wheels. The transmission line includes a gearbox arranged between the prime mover and the wheels, and the working machine further includes at least one hydraulic machine in a hydraulic system for moving an implement arranged on the working machine and/or steering the working machine, and an electric machine for driving or braking the driving wheels and/or for driving or braking the at least one hydraulic machine. The electric machine is arranged in parallel with the prime mover with respect to the transmission line and is mechanically connected to the transmission line between the prime mover and the gearbox.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: May 5, 2020
    Assignee: Volvo Construction Equipment AB
    Inventors: Per Mattsson, Andreas Nordstrand, Rikard Mäki
  • Patent number: 10584771
    Abstract: A transmission arrangement for a vehicle includes a first, a second, a third, and a fourth planetary gear set including a sun gear, a planet carrier and a ring gear, respectively, wherein the transmission arrangement further includes a transmission housing, an input shaft and an output shaft, wherein the ring gear of the first planetary gear set and the input shaft are operatively connected to each other; the sun gear of the first planetary gear set, and the sun gear of the second planetary gear set are operatively connected to each other; the planet carrier of the second planetary gear set and the ring gear of the third planetary gear set are operatively connected to each other; the planet carrier of the third planetary gear set is operatively connected to the transmission housing; the sun gear of the third planetary gear set and the sun gear of the fourth planetary gear set are operatively connected to each other; and the planet carrier of the fourth planetary gear set and the output shaft are operatively c
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: March 10, 2020
    Assignee: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventors: Jan Dersjö, Per Mattsson, Mathias Lehikoinen, Mats Åkerblom, Jörg Müller, Mirko Leesch, Rico Resch