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Method for adjusting brake pressures of a motor vehicle, brake system for carrying out the method and motor vehicle comprising such a brake system

  • US 10,279,788 B2
  • Filed: 07/22/2016
  • Issued: 05/07/2019
  • Est. Priority Date: 09/21/2015
  • Status: Active Grant
First Claim
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1. A method for generating brake pressures at pneumatically operated wheel brakes of a motor vehicle, the method comprising:

  • generating, in a normal braking mode, first brake pressures at the pneumatically operated wheel brakes of the motor vehicle in response to reception of a first driver brake request;

    determining, in the normal braking mode, a braking power index that relates a first driver target deceleration value corresponding to the first driver brake request and an actual deceleration value of a vehicle deceleration; and

    generating, by a control unit in a pressure control mode, second brake pressures at the pneumatically operated wheel brakes of the motor vehiclewherein the second brake pressures are generated in response to reception of an external brake request and a second driver brake request,wherein the external brake request is defined for the control unit as an external target deceleration value and is independent of the second driver brake request,wherein the second brake pressures are generated as a function of a resulting target deceleration value of the vehicle deceleration,wherein the resulting target deceleration value is determined by linking, by the control unit, the external target deceleration value and a second driver target deceleration value corresponding to the second driver brake request, andwherein the second driver target deceleration value is determined according to the braking power index.

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