Patents by Inventor Bernd Spatz

Bernd Spatz 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).

  • Method and device for controlling a torque of an electric motor of an electro-hydraulic system
    Patent number: 9976549
    Abstract: A method is used to control a torque of an electric motor of an electro-hydraulic system. The method includes selecting a value of a set point torque depending on a current pressure in a hydraulic circuit of the electro-hydraulic system. The method also includes determining a control signal for controlling the torque of the electric motor using a target torque and the set point torque.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: May 22, 2018
    Assignee: Robert Bosch GmbH
    Inventors: Karsten Mueller, Volker Schueren, Dieter Holl, Bernd Spatz, Dirk-Walter Herold, Wolfgang Haug, Eberhard Schemm
  • Emergency adjustment device for blade pitch adjustment systems for wind energy installations
    Patent number: 8941351
    Abstract: An adjusting device for rotor blades of a wind power plant is disclosed. An AC motor is provided for adjusting the angle setting of the rotor blades. An input serves for receiving an input alternating current. A frequency converter is provided for generating a second alternating current having a second frequency, wherein the second alternating current drives the AC motor. Additionally, a DC voltage source and an inverter are provided for converting the voltage provided by the DC voltage source into an alternating current for the AC motor. The inverter is thereby separated from the frequency inverter.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: January 27, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Stephan Becker, Bernd Spatz
  • METHOD AND DEVICE FOR CONTROLLING A TORQUE OF AN ELECTRIC MOTOR OF AN ELECTRO-HYDRAULIC SYSTEM
    Publication number: 20140219822
    Abstract: A method is used to control a torque of an electric motor of an electro-hydraulic system. The method includes selecting a value of a set point torque depending on a current pressure in a hydraulic circuit of the electro-hydraulic system. The method also includes determining a control signal for controlling the torque of the electric motor using a target torque and the set point torque.
    Type: Application
    Filed: May 11, 2012
    Publication date: August 7, 2014
    Applicant: Robert Bosch GmbH
    Inventors: Karsten Mueller, Volker Schueren, Dieter Holl, Bernd Spatz, Dirk-Walter Herold, Wolfgang Haug, Eberhard Schemm
  • Emergency Adjustment Device for Blade Pitch Adjustment Systems for Wind Energy Installations
    Publication number: 20120169051
    Abstract: An adjusting device for rotor blades of a wind power plant is disclosed. An AC motor is provided for adjusting the angle setting of the rotor blades. An input serves for receiving an input alternating current. A frequency converter is provided for generating a second alternating current having a second frequency, wherein the second alternating current drives the AC motor. Additionally, a DC voltage source and an inverter are provided for converting the voltage provided by the DC voltage source into an alternating current for the AC motor. The inverter is thereby separated from the frequency inverter.
    Type: Application
    Filed: May 6, 2010
    Publication date: July 5, 2012
    Inventors: Stephan Becker, Bernd Spatz
  • DRIVE DEVICE FOR DRIVING SEVERAL AXLES
    Publication number: 20110286843
    Abstract: A drive device for driving at least one first axle and one second axle (axle 1, axle 2, axle 3), comprising a first control device (1, 2, 3) which subjects the at least one first axle (axle 1, axle 2, axle 3) to drive control, and comprising a second control device (1, 2, 3) which subjects the at least one second axle (axle 1, axle 2, axle 3) to drive control. A position sensor (10, 15, 20) which detects a position of the second axle (axle 1, axle 2, axle 3) is provided, and a detection signal of the position sensor (10, 15, 20) is supplied to the first control device (1, 2, 3).
    Type: Application
    Filed: February 6, 2008
    Publication date: November 24, 2011
    Inventors: Karl Lengl, Stephan Becker, Bernd Spatz