Calculation example

Given:

• Average braking power: 0.25 kW
• Brake ramp: 2 s
• 200 brake applications per hour

Procedure:

Calculating energy from the power of the brake ramp:

The brake ramp [3] (0.2 s) can be used for the brake ramp of 2 s in the diagram. Use the characteristic curve with the shorter brake ramp because a shorter brake ramp means more power.

The diagram allows a power of 580 J with a 0.2 s brake ramp at 200 cycles per hour. In this case, the required 500 J can be dissipated with BW2/BW4.