The CBA is an actuator designed to manage the pressure of a BBW system at each individual wheel.

However, in addition to its primary function, this device can also be used as a measuring instrument or as a component in a Hardware-in-the-Loop (HiL) simulator.

Meccanica 42, in fact, also uses the CBA to measure specific characteristics of the brake system, such as

1. the volume of fluid required by the caliper or brake system to generate a given pressure.
2. the sag of the hydraulic line and its impact on brake system performance.

METHODOLOGY

Step 1: a pressure sensor was installed on the vehicle’s original braking system. This made it possible to detect the maximum pressure generated by the system under real operating conditions, with ABS active.

Step 2: subsequently, the same pipe from the original system was connected to the CBA on a test bench, testing the ability of the actuator to achieve the same pressure as measured on the vehicle.

Step 3: the original rubber duct was replaced with a braided hose of the same length to increase the rigidity of the system. Tests showed that this modification reduced the volume of oil required to achieve the same pressure, improving system efficiency and reducing intervention times.

These measurements provide vital data for
1. Optimising the performance of the braking system
2. Integrate real values into the virtual model
3. Compare braking components