Patents by Inventor Erich Karg

Erich Karg 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: 10122312
    Abstract: The current embodiments provide a method for controlling an induction machine with a plurality of phases. Each phase may include a plurality of parallel windings and each phase may be associated with a half-bridge. The method may include determining a current in a winding of a first phase. The method may further include determining a phase current on the basis of the current in the winding, and controlling the half-bridge associated with the first phase based on the determined phase current.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: November 6, 2018
    Assignee: ZF Friedrichshafen AG
    Inventors: Hans-Jürgen Hanft, Erich Karg, Alfred Tareilus
  • Publication number: 20160211789
    Abstract: The current embodiments provide a method for controlling an induction machine with a plurality of phases. Each phase may include a plurality of parallel windings and each phase may be associated with a half-bridge. The method may include determining a current in a winding of a first phase. The method may further include determining a phase current on the basis of the current in the winding, and controlling the half-bridge associated with the first phase based on the determined phase current.
    Type: Application
    Filed: January 20, 2016
    Publication date: July 21, 2016
    Inventors: Hans-Jürgen Hanft, Erich Karg, Alfred Tareilus
  • Patent number: 6239566
    Abstract: A drive system for a permanently excited electric motor having at least one phase winding including a half-bridge arrangement for each phase winding of the motor, an intermediate circuit connecting each half-bridge arrangement to a motor supply voltage source, and a drive arrangement for driving each half-bridge arrangement. In accordance with the driving via the drive arrangement, a voltage or a potential with a predetermined polarity is applied or can be applied for a predetermined duration by each half-bridge arrangement to that phase winding of the electric motor which is assigned to this half-bridge arrangement.
    Type: Grant
    Filed: May 12, 1999
    Date of Patent: May 29, 2001
    Assignee: Mannesmann Sachs AG
    Inventors: Alfred Tareilus, Alfred Rüthlein, Erich Karg
  • Patent number: 5848659
    Abstract: A non-railbound vehicle with an electric motor in which the maximum output of the internal combustion engine will be available in its entirety for driving the vehicle without prejudice to convenience with respect to electrical actuation of accessory functions. The vehicle includes a drive control that provides a portion of the output generated by a generator for supplying power to the low-voltage vehicle power supply. The electronic drive control is programmed to provide a temporary interruption of the current supplied by the generator to the low-voltage vehicle power supply during operating phases in which the full output of the internal combustion engine is required for driving the vehicle. During these phases current is supplied to accessory electrical consumers via the vehicle battery.
    Type: Grant
    Filed: July 13, 1995
    Date of Patent: December 15, 1998
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Erich Karg, Dieter Lutz
  • Patent number: 5705859
    Abstract: A non-railbound vehicle in which at least one driving wheel is coupled with an electric motor which is supplied with electric current via power electronics influenced by an electronic control depending on the power requirement selected by the driver via an accelerator pedal. The current is produced by a generator (2) which is coupled with an internal combustion engine. The current for driving the generator is supplied with an operating voltage in the medium-voltage range. Additionally, there is a vehicle power supply in the low-voltage range which ensures the supply of power to accessory electrical consumers. The low-voltage power supply has a vehicle battery and is supplied with current obtained by transforming a portion of the mechanical energy generated by the internal combustion engine. The generator can also be operated as an electric motor for starting the internal combustion engine.
    Type: Grant
    Filed: September 13, 1995
    Date of Patent: January 6, 1998
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Erich Karg, Dieter Lutz
  • Patent number: 5698905
    Abstract: A hybrid propulsion system for a motor vehicle, in which electric motors corresponding to the wheels of the motor vehicle are supplied by a generator, which generator is driven by an internal combustion engine, in particular via a direct current intermediate circuit. To be able to start the internal combustion engine, in the event of the failure of the battery provided for starting the internal combustion engine, by pushing or towing the vehicle or rolling it downhill, the electric motors can be switched over to operate as generators, and the generator can be switched over to operate as a motor, during an emergency starting phase, once the speed of travel of the vehicle exceeds a specified speed threshold. The emergency starting attempt can be initiated by the driver by means of a control mechanism, e.g. a manually actuated control switch or the accelerator pedal. If necessary, the speed threshold can be measured by means of a speed sensor.
    Type: Grant
    Filed: October 4, 1995
    Date of Patent: December 16, 1997
    Assignee: Fichtel & Sachs AG
    Inventors: Alfred Ruthlein, Erich Karg