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Method for regulating a predetermined modifiable brake pressure

  • US 7,140,699 B2
  • Filed: 02/13/2003
  • Issued: 11/28/2006
  • Est. Priority Date: 02/14/2002
  • Status: Active Grant
First Claim
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1. Method for regulating a predetermined modifiable brake pressure in the wheel brakes of a brake system which includes an actuating device and at least one hydraulic valve, the method comprising:

  • monitoring a pressure associated with the actuating device;

    determining a nominal pressure for the wheel brakes based on the monitored actuating device pressure;

    providing a characteristic curve that correlates a valve current of the hydraulic valve with a pressure difference between the nominal pressure for the wheel brakes and the monitored actuating device pressure;

    determining the pressure difference between the nominal pressure for the wheel brakes and the monitored actuating device pressure; and

    comparing the determined pressure difference to the characteristic curve and determining a correcting variable of the hydraulic valve according to the characteritstic curvewherein the nominal pressure is determined according to the function Pnomnial=Ppoint of max. boosting+factor K ×

    PTMC

    Ppoint of max. boosting) with Pnomnial=nominal pressure, Ppoint of max. boosting=pressure at the point of maximum boosting of an associated brake booster and PTMC=pressure of the actuating device.

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