Brake cylinder arrangement and braking system
A brake cylinder arrangement has a brake cylinder, a pressure sensor, and a pressure reducer, wherein the pressure reducer transfers pressures from the brake cylinder to the pressure sensor differently, depending on the input pressure range. The invention furthermore relates to a braking system having a brake cylinder arrangement of this kind.
1. A brake cylinder arrangement comprising:
a brake cylinder;
a pressure sensor connected to the brake cylinder to sense a pressure in the brake cylinder;
a pressure reducer which passes the pressure from the brake cylinder to the pressure sensor with a first modification factor in a first input pressure range, which extends from 0 bar to a predetermined pressure threshold and when the pressure exceeds the pressure threshold, passes the pressure from the brake cylinder to the pressure sensor with a second modification factor; and
wherein the pressure exceeding the pressure threshold is in a second input pressure range, which includes pressures greater than the predetermined pressure threshold.
2. The brake cylinder arrangement as claimed in claim 1 , wherein the predetermined pressure threshold is between 60 bar and 80 bar.
3. The brake cylinder arrangement as claimed in claim 1 , wherein the first modification factor has a value of 1.
4. The brake cylinder arrangement as claimed in claim 1 , wherein the second modification factor has a value of less than 1.
5. The brake cylinder arrangement as claimed in claim 1 , wherein the pressure reducer is a hydraulic pressure reducer.
6. The brake cylinder arrangement as claimed in claim 1 , wherein the brake cylinder is a brake master cylinder of a motor vehicle.
7. The brake cylinder arrangement as claimed in claim 1 , wherein the pressure sensor is configured to trigger a burst protection function when the pressure reaches a predetermined safety threshold.
8. The brake cylinder arrangement as claimed in claim 7 , wherein the safety threshold corresponds to an input pressure of the pressure reducer of between 260 bar and 280 bar.
9. A braking system for a motor vehicle, comprising:
a brake cylinder arrangement including;
a brake cylinder;
a pressure sensor connected to the brake cylinder to sense a pressure in the brake cylinder;
a pressure reducer which passes the pressure from the brake cylinder to the pressure sensor with a first modification factor in a first input pressure range, which extends from 0 bar to a predetermined pressure threshold and when the pressure exceeds the pressure threshold, passes the pressure from the brake cylinder to the pressure sensor with a second modification factor; and
wherein the pressure exceeding the pressure threshold is in a second input pressure range, which includes pressures greater than the predetermined pressure threshold; and
a plurality of brakes, which are connected to the brake cylinder of the brake cylinder arrangement.
10. The braking system as claimed in claim 9 , wherein the predetermined pressure threshold is between 60 bar and 80 bar.
11. The braking system as claimed in claim 9 , wherein the first modification factor has a value of 1.
12. The braking system as claimed in claim 9 , wherein the second modification factor has a value of less than 1.
13. The braking system as claimed in claim 9 , wherein the pressure reducer is a hydraulic pressure reducer.
14. The braking system as claimed in claim 9 , wherein the brake cylinder is a brake master cylinder of a motor vehicle.
15. The braking system as claimed in claim 9 , wherein the pressure sensor is configured to trigger a burst protection function when the pressure reaches a predetermined safety threshold.
16. The braking system as claimed in claim 15 , wherein the safety threshold corresponds to an input pressure of the pressure reducer of between 260 bar and 280 bar.