What is the purpose of a vehicle's anti-lock braking system (ABS)?

The purpose of a vehicle's anti-lock braking system (ABS) is to prevent wheel lockup during heavy braking. When a driver applies the brakes forcefully, especially in slippery conditions, the wheels can lock up, causing a loss of traction and control. ABS helps maintain the traction between the tires and the road by modulating brake pressure, allowing the driver to steer the vehicle while braking. This system works by rapidly pulsing the brakes on and off, which prevents the wheels from locking up and allows for safer stopping and better control in emergency situations.

In contrast, options that suggest allowing faster acceleration, reducing fuel consumption, or increasing engine power do not pertain to the function of the braking system. Instead, these elements relate to engine performance and efficiency rather than braking capabilities. The distinctive role of ABS is focused on enhancing safety by improving braking effectiveness, especially under challenging driving conditions.