Plural Similar Inputs Patents (Class 303/131)
  • Vehicle brake system having an electronic unit for determining a vehicle reference speed
    Patent number: 6840587
    Abstract: For determining a reference speed which is approximated to the actual vehicle speed, at least two wheel sensors are provided for each wheel speed to be measured. All existing wheel sensors are analyzed, and only one is selected and used for determining the reference speed as a function of the actual driving condition and of at least one defined speed criterion. At least one sensor is always available for controlling each wheel, even if one sensor is faulty.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: January 11, 2005
    Assignee: Knorr-Bremse Systeme für Schienenfahrzeuge GmbH
    Inventors: Wolfgang Eberle, Reinhold Mayer