Patents by Inventor Steffen Ullmann

Steffen Ullmann 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: 6658343
    Abstract: A method of stabilizing a vehicle equipped with a slip-controlled brake system is described. This is done by determining the wheel speeds of the individual wheels of the vehicle. For at least one wheel, a wheel speed setpoint is determined. For the at least one wheel, a deviation quantity describing the deviation between the wheel speed determined for that wheel and the setpoint is determined. To stabilize the vehicle, actuators assigned to the at least one wheel are activated as a function of this deviation quantity.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: December 2, 2003
    Assignee: Robert Bosch GmbH
    Inventors: Matthaeus Koch, Steffen Ullmann, Ruediger Poggenburg, Oliver Lah, Stefan Diehle
  • Patent number: 6623090
    Abstract: A panic braking operation of a vehicle having at least two wheels is detected by measuring speed quantities which represent the rotary motions of at least two wheels, selecting the speed quantity of one of the wheels and/or by determining a speed value from the speed quantities, determining a change value which represents the time-related change of the selected speed quantity and/or of the speed value, determining the time characteristic of the change value, and detecting a panic braking operation as a function of the time characteristic of the change value. What is advantageous here is that no complex and expensive additional sensor technology is needed for detecting panic braking; the wheel-speed sensors which are provided anyway in anti-lock control systems, traction control systems, and/or vehicle stability control systems are sufficient. Thus, the use of a panic detection is also possible in so-called “low-cost braking systems”.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: September 23, 2003
    Assignee: Robert Bosch GmbH
    Inventors: Steffen Ullmann, Ruediger Poggenburg, Thomas Opferkuch, Stefan Diehle
  • Publication number: 20020027389
    Abstract: A panic braking operation of a vehicle having at least two wheels is detected by measuring speed quantities which represent the rotary motions of at least two wheels, selecting the speed quantity of one of the wheels and/or by determining a speed value from the speed quantities, determining a change value which represents the time-related change of the selected speed quantity and/or of the speed value, determining the time characteristic of the change value, and detecting a panic braking operation as a function of the time characteristic of the change value. What is advantageous here is that no complex and expensive additional sensor technology is needed for detecting panic braking; the wheel-speed sensors which are provided anyway in anti-lock control systems, traction control systems, and/or vehicle stability control systems are sufficient. Thus, the use of a panic detection is also possible in so-called “low-cost braking systems”.
    Type: Application
    Filed: July 2, 2001
    Publication date: March 7, 2002
    Inventors: Steffen Ullmann, Ruediger Poggenburg, Thomas Opferkuch, Stefan Diehle