What is the primary function of the air brake system in larger vehicles?

The primary function of the air brake system in larger vehicles is to provide a powerful stopping force and minimize wheel lock-up. This is critical for ensuring safety, especially in large trucks and buses, which require more braking force due to their size and weight. Air brakes are designed to operate using compressed air, which allows for a rapid application of the brakes and can handle the high demands of stopping larger vehicles effectively.

By applying consistent pressure through the air brake system, drivers can achieve greater control over the vehicle, which is crucial when navigating steep grades, heavy traffic, or emergency situations. Additionally, the design helps to prevent wheel lock-up, allowing the driver to maintain better steering control while braking, which is essential in avoiding accidents and ensuring safe maneuverability. The unique characteristics of air brakes make them particularly suitable for heavy vehicles where traditional hydraulic systems may not be as effective.