Patents by Inventor Albert Kusej

Albert Kusej 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 for controlling a hydraulic actuator comprising a rapid drain valve and a control system and a friction coupling comprising an actuator of this type
    Patent number: 8145400
    Abstract: A method of controlling a hydraulic actuator of a friction coupling that includes a pump, which is driven by an electric motor, a pressure line, which contains a non-return valve and which runs from the pump to an actuator cylinder with an actuator piston that acts on the friction coupling. A rapid drain valve has a flow connection to the actuator cylinder and contains a slide that responds to the pressure prevailing on the side of the pump that faces the slide. To optimize the dynamic and static control behavior of the actuator, a control variable is determined for the electric motor from the target pressure and the actual pressure in the actuator cylinder. At least two different control algorithms are executed, depending on whether the difference between the target pressure and the actual pressure is positive or negative.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: March 27, 2012
    Assignee: MAGNA Powertrain AG & Co KG
    Inventors: Albert Kusej, Johannes Quehenberger, Anton Hofer
  • Method For Controlling a Hydraulic Actuator Comprising a Rapid Drain Valve and a Control System and a Friction Coupling Comprising an Actuator of this Type
    Publication number: 20080255740
    Abstract: A method of controlling a hydraulic actuator of a friction coupling that includes a pump, which is driven by an electric motor, a pressure line, which contains a non-return valve and which runs from the pump to an actuator cylinder with an actuator piston that acts on the friction coupling. A rapid drain valve has a flow connection to the actuator cylinder and contains a slide that responds to the pressure prevailing on the side of the pump that faces the slide. To optimize the dynamic and static control behavior of the actuator, a control variable is determined for the electric motor from the target pressure and the actual pressure in the actuator cylinder. At least two different control algorithms are executed, depending on whether the difference between the target pressure and the actual pressure is positive or negative.
    Type: Application
    Filed: November 8, 2005
    Publication date: October 16, 2008
    Applicant: Magna Drivetrain AG & Co. KG
    Inventors: Albert Kusej, Johannes Quehenberger, Anton Hofer