Patents by Inventor Dirk Hirschmann

Dirk Hirschmann 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).

  • Anti-skid control device for a vehicle having an electromotive drive system
    Patent number: 9440556
    Abstract: An anti-slip control device for a vehicle having an electromotive drive system includes one or more electric driving motors. In order to limit wheel slip, the rotational speed of the driving wheels is regulated by controlling the rotational speed of the rotary field generated in at least one electric driving motor, each electric driving motor being fed by a controllable converter associated therewith. In order to control the rotational speed, the anti-slip control device constantly informs each converter about the maximum allowed rotational speed of the driving motor or driving wheel associated with the respective converter.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: September 13, 2016
    Assignee: AUDI AG
    Inventors: Sebastian Loos, Dirk Hirschmann, Bodo Kleickmann
  • Anti-blocking system for a vehicle with electromotive vehicle drive
    Patent number: 9352732
    Abstract: An anti-blocking system for a vehicle having an electromotive vehicle drive unit includes one or more driving motors. During a braking process, the braking effect of the driving motors operating as a generator is limited in such a way that brake slip on at least one driving wheel is limited to a predefined threshold value. The rotational speed of each driving motor is regulated by a controllable converter associated therewith, the ABS control device constantly transmitting, to each converter, a mandatory minimum braking rotational speed for the driving motor associated with the respective converter in order to limit brake slip.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: May 31, 2016
    Assignee: AUDI AG
    Inventors: Sebastian Loos, Dirk Hirschmann, Bodo Kleickmann
  • ANTI-BLOCKING SYSTEM FOR A VEHICLE WITH ELECTROMOTIVE VEHICLE DRIVE
    Publication number: 20140343772
    Abstract: An anti-blocking system for a vehicle having an electromotive vehicle drive unit includes one or more driving motors.
    Type: Application
    Filed: February 28, 2012
    Publication date: November 20, 2014
    Applicant: Audi AG
    Inventors: Sebastian Loos, Dirk Hirschmann, Bodo Kleickmann
  • ANTI-SKID CONTROL DEVICE FOR A VEHICLE HAVING AN ELECTROMOTIVE DRIVE SYSTEM
    Publication number: 20140336856
    Abstract: An anti-slip control device for a vehicle having an electromotive drive system includes one or more electric driving motors. In order to limit wheel slip, the rotational speed of the driving wheels is regulated by controlling the rotational speed of the rotary field generated in at least one electric driving motor, each electric driving motor being fed by a controllable converter associated therewith. In order to control the rotational speed, the anti-slip control device constantly informs each converter about the maximum allowed rotational speed of the driving motor or driving wheel associated with the respective converter.
    Type: Application
    Filed: February 28, 2012
    Publication date: November 13, 2014
    Inventors: Sebastian Loos, Dirk Hirschmann, Bodo Kleickmann