Patents by Inventor Guglielmo Navarra

Guglielmo Navarra 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).

  • Optimized control of the operation of one or more traction systems of a train for entering and exiting from a coasting condition
    Patent number: 9789881
    Abstract: A railway vehicle comprises a traction system including an asynchronous electric motor or a synchronous electric DC motor operable by an inverter electronic drive system. The vehicle further comprises an electronic control unit coupled to the traction system and configured to receive signals/data/commands indicative of operating conditions of the vehicle and of the traction system and to determine, based on the received signals/data/commands, the occurrence of a coasting condition of the vehicle and the occurrence of an exit condition from the coasting condition of the vehicle. If a coasting condition of the vehicle occurs, the electronic drive system is controlled to cause the electric motor to undergo magnetic flux changes. If an exit condition from the coasting condition occurs, and depending whether the electronic drive system is on or off, the electronic drive system is controlled to increase torque of the electric motor or to reduce magnetic flux reduction.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: October 17, 2017
    Assignee: Ansaldobreda S.P.A.
    Inventors: Ciro Nappo, Luigi Accardo, Vincenzo Mungiguerra, Fabio Voccia, Guglielmo Navarra
  • OPTIMIZED CONTROL OF THE OPERATION OF ONE OR MORE TRACTION SYSTEMS OF A TRAIN FOR ENTERING AND EXITING FROM A COASTING CONDITION
    Publication number: 20150158502
    Abstract: A railway vehicle comprises a traction system including an asynchronous electric motor or a synchronous electric DC motor operable by an inverter electronic drive system. The vehicle further comprises an electronic control unit coupled to the traction system and configured to receive signals/data/commands indicative of operating conditions of the vehicle and of the traction system and to determine, based on the received signals/data/commands, the occurrence of a coasting condition of the vehicle and the occurrence of an exit condition from the coasting condition of the vehicle. If a coasting condition of the vehicle occurs, the electronic drive system is controlled to cause the electric motor to undergo magnetic flux changes. If an exit condition from the coasting condition occurs, and depending whether the electronic drive system is on or off, the electronic drive system is controlled to increase torque of the electric motor or to reduce magnetic flux reduction.
    Type: Application
    Filed: July 30, 2013
    Publication date: June 11, 2015
    Inventors: Ciro Nappo, Luigi Accardo, Vincenzo Mungiguerra, Fabio Voccia, Guglielmo Navarra