What is the role of the check valves in the brake control system?

The check valves in the brake control system serve the critical function of preventing backflow. This is essential because, in a hydraulic system, it is important to maintain the pressure direction for proper operation. When the brake system is engaged, hydraulic pressure needs to move in a specific direction to effectively operate the brakes. If backflow were to occur, it could lead to a loss of pressure, potentially resulting in brake failure or diminished performance.

By preventing fluid from returning to the source, check valves ensure that once hydraulic pressure is applied to the brake lines, it remains consistent, allowing the system to function correctly and maintain effective braking action. This role is vital for ensuring safety during operations, as it supports the overall integrity of the hydraulic braking system.

The other options relate to aspects of braking but do not accurately describe the specific purpose of check valves. Applying hydraulic pressure is a function of the brake actuator, enhancing braking performance relates to the overall system efficiency, and controlling wheel transducer data pertains to monitoring and feedback functions rather than the physical mechanics of fluid flow within the braking system.