Which brake system is known for preventing wheel lockup during braking?

The ABS brake system, or Anti-lock Braking System, is specifically designed to prevent wheel lockup during braking. This is crucial because when a wheel locks up, it stops rotating and can lead to a loss of control of the vehicle. The ABS uses sensors to monitor the speed of each wheel and, if it detects that one or more wheels are about to lock up, it automatically modulates the brake pressure to those wheels. This allows the driver to maintain steering control and reduces stopping distances on slippery surfaces.

In contrast, drum brakes, disc brakes, and power brakes do not inherently possess the ability to prevent wheel lockup. Drum and disc brakes refer to the types of mechanisms that create friction to slow down the vehicle, while power brakes enhance the force applied by the driver on the brake pedal through a booster mechanism. They do not offer the dynamic control that ABS provides to manage braking force and prevent wheel lockup actively.