Patents by Inventor JOHAN LINDSTROEM

JOHAN LINDSTROEM 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: 10046669
    Abstract: A vehicle has an electric or hybrid-electric traction drive supported by an ungrounded vehicle frame. The vehicle also has a current collector, which can be electrically connected to the traction drive and which can be brought in galvanic contact with a contact line of a grounded contact-line system to supply traction energy. The vehicle contains an electrical protection system for avoiding dangerous contact voltages on the vehicle frame or on a vehicle part connected to the vehicle frame in a conductive manner. The protection system has a first protection stage, a second protection stage, and a switching element, by which the protection system can be switched between the first and the second protection stages. The first protection stage provides greater safety from dangerous contact voltages than the second protection stage. Thus, a protection system can be provided which provides sufficient safety in all operating states of the vehicle.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: August 14, 2018
    Assignees: Siemens Aktiengesellschaft, Scania CV AB
    Inventors: Florian Buehs, Klaus Dietrich, Frank Gerstenberg, Hasso Georg Gruenjes, Hans-Peter Lang, Michael Lehmann, Johan Lindstroem, Thomas Stark, Goeran Saenger, Christer Thoren
  • Publication number: 20160236590
    Abstract: A vehicle has an electric or hybrid-electric traction drive supported by an ungrounded vehicle frame. The vehicle also has a current collector, which can be electrically connected to the traction drive and which can be brought in galvanic contact with a contact line of a grounded contact-line system to supply traction energy. The vehicle contains an electrical protection system for avoiding dangerous contact voltages on the vehicle frame or on a vehicle part connected to the vehicle frame in a conductive manner. The protection system has a first protection stage, a second protection stage, and a switching element, by which the protection system can be switched between the first and the second protection stages. The first protection stage provides greater safety from dangerous contact voltages than the second protection stage. Thus, a protection system can be provided which provides sufficient safety in all operating states of the vehicle.
    Type: Application
    Filed: September 25, 2014
    Publication date: August 18, 2016
    Applicants: Siemens Aktiengesellschaft, Scania CV AB
    Inventors: FLORIAN BUEHS, KLAUS DIETRICH, FRANK GERSTENBERG, HASSO GEORG GRUENJES, HANS-PETER LANG, MICHAEL LEHMANN, JOHAN LINDSTROEM, THOMAS STARK, GOERAN SAENGER, CHRISTER THOREN