Patents by Inventor Bernd Gussmann

Bernd Gussmann 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 regulating the current through an electromagnetic actuator
    Patent number: 7206180
    Abstract: A method for regulating the current through an electromagnetic actuator. The actuator, a first switch and a current-measuring circuit form a series circuit. A free-wheeling diode is parallel-connected to the actuator. The first switch is closed and opened by a control and a pulse generator using a PWM signal (PWM=pulse width modulation) in such a way that the current flowing through the actuator and measured by the current-measuring circuit is regulated to a setpoint value (SW). The time duration of one on and off switching cycle of the PWM signal is altered, and a so-called dither function in the form of a low-frequency oscillation is superimposed on the PWM signal.
    Type: Grant
    Filed: June 10, 2003
    Date of Patent: April 17, 2007
    Assignee: Robert Bosch GmbH
    Inventors: Willi Kuehn, Ewald Stuible, Rupert Fackler, Christian Klein, Bernd Gussmann, Christian Schwientek, Ingo Mueller-Vogt
  • Method for regulating the current flowing through an electromagnetic actuator
    Publication number: 20060098377
    Abstract: A method for regulating the current through an electromagnetic actuator. The actuator, a first switch and a current-measuring circuit form a series circuit. A free-wheeling diode is parallel-connected to the actuator. The first switch is closed and opened by a control and a pulse generator using a PWM signal (PWM=pulse width modulation) in such a way that the current flowing through the actuator and measured by the current-measuring circuit is regulated to a setpoint value (SW). The time duration of one on and off switching cycle of the PWM signal is altered, and a so-called dither function in the form of a low-frequency oscillation is superimposed on the PWM signal.
    Type: Application
    Filed: June 10, 2003
    Publication date: May 11, 2006
    Inventors: Willi Kuehn, Ewald Stuible, Rupert Fackler, Christian Klein, Bernd Gussmann, Christian Schwientek, Ingo Mueller-Vogt