Patents by Inventor Fredrik SUNDEN

Fredrik SUNDEN 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: 20220388495
    Abstract: The invention relates to a method, performed by a control device, for driving at least one power consumer connected to a powertrain of a vehicle. The at least one propulsion unit comprises a first electrical machine and a second electrical machine, wherein the first electrical machine is connected to a first main shaft and the second electrical machine is connected to a second main shaft. A connection shaft is connected to the first electrical machine; and the at least one power consumer comprises a first power consumer connected to the first main shaft and/or a second power consumer connected to the connection shaft.
    Type: Application
    Filed: October 27, 2020
    Publication date: December 8, 2022
    Inventors: Mathias Björkman, Niklas Pettersson, Fredrik Sundén, Mikael Bergquist, Johan Lindström
  • Patent number: 11498558
    Abstract: The present invention relates to a method to control a hybrid powertrain, comprising a combustion engine, an electric machine, a gearbox with input shaft and output shaft, wherein the combustion engine and the electric machine are connected to the input shaft. The method comprises the following steps: a) disconnecting the combustion engine from the input shaft with a coupling device, b) engaging a starting gear in the gearbox, which starting gear is higher than the gear at which the combustion engine's torque at idling speed is able to operate the input shaft, c) generating a torque in the input shaft with the electric machine, d) accelerating the electric machine, and e) connecting the combustion engine to the input shaft with the coupling device when the electric machine has reached substantially the same rotational speed as the combustion engine. The invention also relates to a hybrid powertrain and a vehicle.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: November 15, 2022
    Assignee: Scania CV AB
    Inventors: Mats Liwell, Mattias Nilsson, Fredrik Sunden, Afram Kourie
  • Patent number: 11007994
    Abstract: The present invention relates to a method for decelerating a vehicle comprising an electrical machine being arranged to provide a controllable torque to at least one drive wheel, said vehicle including driver controllable means for actively requesting a torque for propelling the vehicle. The method includes, when a driver request for a propelling torque is reduced at least to a first extent: applying a first brake torque by means of said electrical machine, by means of said first brake torque, decelerate said vehicle to a stationary state, and by means of said electrical machine, when said vehicle has been decelerated to said stationary state, continue applying a torque by means of said electrical machine to keep said vehicle in said stationary state.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: May 18, 2021
    Assignee: Scania CV AB
    Inventors: Kourie Afram, Mats Liwell, Mattias Nilsson, Fredrik Sunden
  • Publication number: 20190100206
    Abstract: The present invention relates to a method to control a hybrid powertrain, comprising a combustion engine, an electric machine, a gearbox with input shaft and output shaft, wherein the combustion engine and the electric machine are connected to the input shaft. The method comprises the following steps: a) disconnecting the combustion engine from the input shaft with a coupling device, b) engaging a starting gear in the gearbox, which starting gear is higher than the gear at which the combustion engine's torque at idling speed is able to operate the input shaft, c) generating a torque in the input shaft with the electric machine, d) accelerating the electric machine, and e) connecting the combustion engine to the input shaft with the coupling device when the electric machine has reached substantially the same rotational speed as the combustion engine. The invention also relates to a hybrid powertrain and a vehicle.
    Type: Application
    Filed: March 22, 2017
    Publication date: April 4, 2019
    Applicant: Scania CV AB
    Inventors: Mats LIWELL, Mattias NILSSON, Fredrik SUNDÉN, Afram KOURIE
  • Patent number: 10189478
    Abstract: A method for shifting in a vehicle (1) with a hybrid powertrain (2), the powertrain includes: a combustion engine (3), an electric machine (4), a gearbox (6) with an input shaft (10) and a main shaft (14), wherein the combustion engine (3) and the electric machine (4) are connected to the input shaft (10); and a lay shaft (16), via gear sets (50, 52 and 58, 60, 62) is connected to the input shaft (10) and the main shaft (14), so that they form a split gear unit (13) and a main gear unit (15).
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: January 29, 2019
    Assignee: SCANIA CV AB
    Inventors: Mattias Nilsson, Fredrik Sundén, Mats Liwell, Afram Kourie
  • Patent number: 9963151
    Abstract: A method to control a hybrid powertrain (2) in a vehicle, the powertrain including a combustion engine (3), an electric machine (4) and a gearbox (6) with an input shaft (10) and output shaft (18), wherein the combustion engine (3) and the electric machine (4) are connected to the input shaft (10). The method includes the steps of controlling the gearbox (6) to a neutral position; controlling the speed of the electric machine (4) to a predetermined speed, corresponding to a target speed for the input shaft (10) according to the next selected gear; engaging a gear in the gearbox (6); controlling the electric machine (4), so that the electric machine (4) accelerates or decelerates depending on a requested driving torque for the vehicle (1); detecting when a control signal for the electric machine (4) corresponds to a predetermined signal value; and controlling the electric machine (4) to the requested driving torque.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: May 8, 2018
    Assignee: SCANIA CV AB
    Inventors: Mattias Nilsson, Fredrik Sundén, Mats Liwell, Afram Kourie
  • Publication number: 20170297558
    Abstract: The present invention relates to a method for decelerating a vehicle comprising an electrical machine being arranged to provide a controllable torque to at least one drive wheel, said vehicle including driver controllable means for actively requesting a torque for propelling the vehicle. The method includes, when a driver request for a propelling torque is reduced at least to a first extent: applying a first brake torque by means of said electrical machine, by means of said first brake torque, decelerate said vehicle to a stationary state, and by means of said electrical machine, when said vehicle has been decelerated to said stationary state, continue applying a torque by means of said electrical machine to keep said vehicle in said stationary state.
    Type: Application
    Filed: October 15, 2015
    Publication date: October 19, 2017
    Applicant: Scania CV AB
    Inventors: Kourie AFRAM, Mats LIWELL, Mattias NILSSON, Fredrik SUNDEN
  • Publication number: 20160264127
    Abstract: A method to control a hybrid powertrain (2) in a vehicle, the powertrain including a combustion engine (3), an electric machine (4) and a gearbox (6) with an input shaft (10) and output shaft (18), wherein the combustion engine (3) and the electric machine (4) are connected to the input shaft (10). The method includes the steps of controlling the gearbox (6) to a neutral position; controlling the speed of the electric machine (4) to a predetermined speed, corresponding to a target speed for the input shaft (10) according to the next selected gear; engaging a gear in the gearbox (6); controlling the electric machine (4), so that the electric machine (4) accelerates or decelerates depending on a requested driving torque for the vehicle (1); detecting when a control signal for the electric machine (4) corresponds to a predetermined signal value; and controlling the electric machine (4) to the requested driving torque.
    Type: Application
    Filed: November 13, 2014
    Publication date: September 15, 2016
    Inventors: Mattias NILSSON, Fredrik SUNDÉN, Mats LIWELL, Afram KOURIE
  • Publication number: 20160264145
    Abstract: A method for shifting in a vehicle (1) with a hybrid powertrain (2), the powertrain includes: a combustion engine (3), an electric machine (4), a gearbox (6) with an input shaft (10) and a main shaft (14), wherein the combustion engine (3) and the electric machine (4) are connected to the input shaft (10); and a lay shaft (16), via gear sets (50, 52 and 58, 60, 62) is connected to the input shaft (10) and the main shaft (14), so that they form a split gear unit (13) and a main gear unit (15).
    Type: Application
    Filed: November 13, 2014
    Publication date: September 15, 2016
    Inventors: Mattias NILSSON, Fredrik SUNDÉN, Mats LIWELL, Afram KOURIE
  • Publication number: 20150166067
    Abstract: A method for regulating the speed of an engine of a vehicle, the vehicle being provided with a clutch which is operated by a vehicle control system for selectively connecting the engine to a gearbox for transmission of torque. When the speed of the engine is to be guided towards a set-point value, the speed of the engine is regulated by using the control system to regulate the torque transmitted by the clutch. Also a system performing the method and a vehicle comprising the system.
    Type: Application
    Filed: February 26, 2013
    Publication date: June 18, 2015
    Inventors: Karl Rredbrandt, Andreas Laghamn, Fredrik Sundén, Mikael Wågberg