What is the function of the pressure decrease phase in anti-lock brake systems?

The function of the pressure decrease phase in anti-lock brake systems is to prevent wheel lockup. In an anti-lock brake system (ABS), sensors monitor the speed of each wheel during braking. When a wheel is close to locking up due to excessive brake pressure, the system momentarily reduces the brake pressure at that wheel. This action allows the wheel to continue rotating, which helps maintain traction between the tire and the road surface. By preventing wheel lockup, the ABS enhances vehicle stability and steering control during hard braking, which can be crucial for avoiding accidents. This intervention allows for more effective braking without losing control of the vehicle, particularly on slippery or uneven surfaces.