Granted Patent B2

US 12,606,146 · App. 18/715,292 · Granted Apr 21, 2026

Inventors: Felix Alexander Fertig (Frankfurt am Main, DE); Eberhard Münz (Sandhausen, DE); Thorsten Wickenhöfer (Hofheim, DE); Michael Wintzer (Frankfurt, DE); Manuel Nesensohn (Griesheim, DE)

Assignee: AUMOVIO Germany GmbH

B60T17/221B60T13/662B60T2270/406B60T2270/88

Abstract

Claims (10)

1 . A method for determining a pressure-volume characteristic curve of a brake caliper device, wherein the pressure-volume characteristic curve is formed from a number of pressure-volume data pairs, wherein in each pressure-volume data pair a pressure interpolation value is assigned to a volume interpolation value, wherein the volume interpolation value is determined by a compensation calculation on a number of predefined auxiliary pressure-volume data pairs.

2 . The method as claimed in claim 1 , wherein the auxiliary pressure-volume data pairs in a local vicinity of the pressure interpolation value assigned to the volume interpolation value have auxiliary pressure interpolation values that are less than and/or greater than the assigned pressure interpolation value.

3 . The method as claimed in claim 2 , wherein the compensation calculation utilizes the method of least squares to determine a regression function on the auxiliary pressure-volume data pairs that indicates the volume as a function of the pressure in the local vicinity.

4 . The method as claimed in claim 3 , wherein the volume interpolation value is determined as a function value of the regression function at the location of the assigned pressure interpolation value.

5 . The method as claimed in claim 1 , wherein the auxiliary pressure-volume data pairs are determined by estimation.

6 . The method as claimed in claim 5 , wherein the estimation is carried out in a linear region of the pressure-volume characteristic curve by an extrapolation of a number of auxiliary pressure-volume data pairs measured in the linear region.

7 . The method as claimed in claim 5 , wherein the estimation is carried out in a non-linear region of the pressure-volume characteristic curve by a parallel displacement of an auxiliary pressure-volume characteristic curve from a number of auxiliary pressure-volume data pairs measured in the non-linear region.

8 . The method as claimed in claim 1 , wherein the pressure-volume characteristic curve is determined in such a way that it has a strictly monotonously increasing progression, and/or a concave progression, and/or that its derivation has only one maximum in the entire range of the pressure interpolation values.

9 . The method as claimed in claim 1 , wherein the determination of the pressure-volume characteristic curve is carried out during the operation of the brake caliper device and is used to compensate for wear effects of the brake caliper device.

10 . The method as claimed in claim 1 , wherein the auxiliary pressure-volume data pairs are measured by a sensor device on the brake caliper device.

Assignments (2)

Priority Claims (1)

Continuity (1)

References Cited (22)