What is one primary purpose of the electric feature of the electro-pneumatic brake?

The primary purpose of the electric feature of the electro-pneumatic brake system is to apply the brakes equally on all cars at the same time. This system integrates electrical signals with pneumatic control, ensuring that when the brakes are activated, all cars in the train receive the braking force simultaneously. This synchronicity is crucial for achieving effective and safe braking, enhancing the train's stability and reducing the risk of derailment or uneven braking stress that can occur in traditional systems.

By applying brakes evenly across the entire train, the electro-pneumatic system helps prevent complications that may arise from differential braking, such as the trailing cars' tendency to push against the leading ones, which can lead to an increase in stopping distances or create potential hazards. This feature is a significant advancement in modern train braking technology, improving overall safety and performance.