Patents by Inventor Aravind Ramesh Chandran

Aravind Ramesh Chandran 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).

  • Protective device for an electric drive system, electric drive system, and method for operating an electric drive system
    Patent number: 11005408
    Abstract: The invention relates to the protection of an electric drive system. If a voltage spike occurs on the input of a current converter of the electric drive system via the intermediate circuit, then in order to dissipate said voltage spike in the electric drive system, a change is made to and fro between a motor operating mode and a generator operating mode in order to dissipate the electrical energy from the intermediate circuit capacitor. For the motor operating mode and the generator operating mode, in each case suitable space phasor vectors can be predefined. This permits particularly simple and rapid activation in order to dissipate the electrical energy in the electric drive system.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: May 11, 2021
    Assignee: Robert Bosch GmbH
    Inventors: Aravind Ramesh Chandran, Martin Hennen
  • PROTECTIVE DEVICE FOR AN ELECTRIC DRIVE SYSTEM, ELECTRIC DRIVE SYSTEM, AND METHOD FOR OPERATING AN ELECTRIC DRIVE SYSTEM
    Publication number: 20200373870
    Abstract: The invention relates to the protection of an electric drive system. If a voltage spike occurs on the input of a current converter of the electric drive system via the intermediate circuit, then in order to dissipate said voltage spike in the electric drive system, a change is made to and fro between a motor operating mode and a generator operating mode in order to dissipate the electrical energy from the intermediate circuit capacitor. For the motor operating mode and the generator operating mode, in each case suitable space phasor vectors can be predefined. This permits particularly simple and rapid activation in order to dissipate the electrical energy in the electric drive system.
    Type: Application
    Filed: October 4, 2017
    Publication date: November 26, 2020
    Inventors: Aravind Ramesh Chandran, Martin Hennen