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Method for controlling an antislip-regulated friction brake system of a rail vehicle

  • US 8,972,144 B2
  • Filed: 10/17/2011
  • Issued: 03/03/2015
  • Est. Priority Date: 10/22/2010
  • Status: Active Grant
First Claim
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1. A method for controlling an antislip-regulated friction brake system of a rail vehicle or of a rail vehicle train which is composed of a plurality of rail vehicles and which has a number of braked axles, the method comprising:

  • subjecting at least two selected axles of the number of braked axles during braking to a braking pressure which exceeds a braking pressure corresponding to a braking request for the braking;

    measuring at least one variable representing a maximum transmittable frictional force in each case between wheels of the selected axles and a rail;

    preparing a list of the selected axles assigned to respectively transmittable frictional force;

    identifying at least one axle with brake slip from the list of selected axles, at which axle, during braking, a brake slip which exceeds a predefined extent occurs and, therefore, antislip regulation is activated;

    calculating lost braking work at the identified at least one axle from the difference between a braking work which would have been carried out without activation of the antislip regulation and a braking work which is actually performed at this the identified at least one axle;

    identifying from the list of selected axles at least one axle without brake slip or with a permissible degree of brake slip for transmitting a greater frictional force than can be transmitted by the axle with brake slip; and

    applying the brakes at the at least one axle without brake slip or with a permissible degree of brake slip, in such a way that the braking work which is lost at the at least one axle with brake slip is at least partially compensated.

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