Patents by Inventor Tobias Axelsson

Tobias Axelsson 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).

  • Patent number: 9205839
    Abstract: An energy management system is provided for a hybrid electric vehicle including an electrical machine for vehicle traction drive and recuperative braking, an electrical storage system ESS for storing recuperated energy, and at least one additional vehicle electrical auxiliary device different from the electrical machine. An energy management controller is arranged to, upon establishing a potential for increased amount of recuperated energy during a predicted future downhill descent, direct electrical power from the ESS to the at least one additional electrical auxiliary device for the purpose of reducing the electrical charge level of the ESS, such that an increased amount of energy may be recuperated and stored in the ESS during the predicted future downhill descent.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: December 8, 2015
    Assignee: Volvo Lastvagnar AB
    Inventors: Jerker Lennevi, Tobias Axelsson
  • Publication number: 20150073637
    Abstract: An energy management system is provided for a hybrid electric vehicle including an electrical machine for vehicle traction drive and recuperative braking, an electrical storage system ESS for storing recuperated energy, and at least one additional vehicle electrical auxiliary device different from the electrical machine. An energy management controller is arranged to, upon establishing a potential for increased amount of recuperated energy during a predicted future downhill descent, direct electrical power from the ESS to the at least one additional electrical auxiliary device for the purpose of reducing the electrical charge level of the ESS, such that an increased amount of energy may be recuperated and stored in the ESS during the predicted future downhill descent.
    Type: Application
    Filed: May 8, 2012
    Publication date: March 12, 2015
    Applicant: VOLVO LASTVAGNAR AB
    Inventors: Jerker Lennevi, Tobias Axelsson
  • Patent number: 8895172
    Abstract: A method is provided for controlling the temperature of a traction battery in a hybrid vehicle, where the hybrid vehicle includes an internal combustion engine and an electric motor for traction power. The method includes providing a first temperature regulating circuit for the internal combustion engine, providing a second temperature regulating circuit for the traction battery, heating the traction battery by an electrical heater provided in the second temperature regulating circuit in series with a pump, a radiator and the traction battery, transferring power to the electrical heater via a DC/DC converter from the electrical motor, which electrical motor is driven by the internal combustion engine, while the battery is below a predetermined temperature interval.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: November 25, 2014
    Assignee: Volvo Lastvagnar AB
    Inventors: Tobias Axelsson, Guy Mouden, Johan Larsson, Jerker Lennevi
  • Publication number: 20120301755
    Abstract: A method is provided for controlling the temperature of a traction battery in a hybrid vehicle, where the hybrid vehicle includes an internal combustion engine and an electric motor for traction power. The method includes providing a first temperature regulating circuit for the internal combustion engine, providing a second temperature regulating circuit for the traction battery, heating the traction battery by an electrical heater provided in the second temperature regulating circuit in series with a pump, a radiator and the traction battery, transferring power to the heater via a DC/DC converter in the second temperature regulating circuit from the electrical motor, which electrical motor is driven by the internal combustion engine, while the battery is below a predetermined temperature interval.
    Type: Application
    Filed: October 9, 2009
    Publication date: November 29, 2012
    Applicant: VOLVO LASTVAGNAR AB
    Inventors: Tobias Axelsson, Guy Mouden, Johan Larsson, Jerker Lennevi