How does a microprocessor work in anti-lock braking system?

In an anti-lock braking system (ABS), a microprocessor continuously monitors the wheel speed sensors to detect any signs of wheel lockup during braking. When it senses that a wheel is about to skid, the microprocessor rapidly adjusts the brake pressure by modulating the hydraulic valves, allowing for controlled braking. This process enhances vehicle stability and control by preventing the wheels from fully locking, allowing the driver to maintain steering control. Overall, the microprocessor plays a critical role in making real-time decisions to optimize braking performance.