Patents by Inventor Bjorn Hellholm

Bjorn Hellholm 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).

  • Articulated tracked vehicle
    Patent number: 9409611
    Abstract: An articulated tracked vehicle comprising a first vehicle unit and a second vehicle unit controllably connected by means of a control member, wherein each vehicle unit comprises two tracks driven by drive wheels, wherein the first vehicle unit comprises a mechanical propulsion unit with a combustion engine for driving the drive wheels of the first vehicle unit and the second vehicle unit consists of one electric propulsion unit for driving the drive wheels of the second vehicle unit, wherein the combustion engine is arranged to drive a generator for electric power generation, wherein the generator is arranged to transfer electric power via power electronics to the electric propulsion unit of the second vehicle unit, wherein power transfer between said vehicle units is arranged to be effected only electrically.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: August 9, 2016
    Assignee: BAE Systems Hägglunds Aktiebolag
    Inventors: Bjorn Hellholm, Gustav Soderstrom
  • Articulated tracked vehicle
    Patent number: 9333997
    Abstract: An articulated tracked vehicle comprising a first vehicle unit and a second vehicle unit controllably connected by means of a control member, wherein each vehicle unit comprises two driven tracks driven by drive wheels and has one electric motor per track for driving respective drive wheel via drive shafts for propulsion of the vehicle, wherein the first vehicle unit comprises a combustion engine, wherein the combustion engine is arranged to drive a generator for electric power generation, wherein the generator is arranged to transfer electric power via power electronics to the electric motors of each vehicle unit, wherein propulsion of the vehicle is arranged to be effected only electrically, and wherein power transfer between said vehicle units is arranged to be effected only electrically.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: May 10, 2016
    Assignee: BAE Systems Hägglunds Aktiebolag
    Inventors: Bjorn Hellholm, Gustav Soderstrom
  • ARTICULATED TRACKED VEHICLE
    Publication number: 20150166131
    Abstract: An articulated tracked vehicle comprising a first vehicle unit and a second vehicle unit controllably connected by means of a control member, wherein each vehicle unit comprises two driven tracks driven by drive wheels and has one electric motor per track for driving respective drive wheel via drive shafts for propulsion of the vehicle, wherein the first vehicle unit comprises a combustion engine, wherein the combustion engine is arranged to drive a generator for electric power generation, wherein the generator is arranged to transfer electric power via power electronics to the electric motors of each vehicle unit, wherein propulsion of the vehicle is arranged to be effected only electrically, and wherein power transfer between said vehicle units is arranged to be effected only electrically.
    Type: Application
    Filed: February 26, 2015
    Publication date: June 18, 2015
    Inventors: Bjorn Hellholm, Gustav Soderstrom
  • ARTICULATED TRACKED VEHICLE
    Publication number: 20150166132
    Abstract: An articulated tracked vehicle comprising a first vehicle unit and a second vehicle unit controllably connected by means of a control member, wherein each vehicle unit comprises two tracks driven by drive wheels, wherein the first vehicle unit comprises a mechanical propulsion unit with a combustion engine for driving the drive wheels of the first vehicle unit and the second vehicle unit consists of one electric propulsion unit for driving the drive wheels of the second vehicle unit, wherein the combustion engine is arranged to drive a generator for electric power generation, wherein the generator is arranged to transfer electric power via power electronics to the electric propulsion unit of the second vehicle unit, wherein power transfer between said vehicle units is arranged to be effected only electrically.
    Type: Application
    Filed: February 26, 2015
    Publication date: June 18, 2015
    Inventors: Bjorn Hellholm, Gustav Soderstrom