What Causes the Clicking Sound and Poor Braking Performance When Braking on Snowy Days?

[DerekLynn]

The reason for the clicking sound and the feeling of poor braking performance when braking on snowy days is that the ABS (Anti-lock Braking System) is activated. On slippery snowy roads, the ABS frequently engages during braking, causing the brake pedal to pulsate—this is a normal operation of the ABS system. When the ABS is working, it produces a clicking sound. The functions of the ABS system are: 1. To prevent loss of vehicle control, increase braking distance, and improve vehicle safety; 2. To enhance the overall braking performance of the vehicle; 3. To prevent wheel lock-up during braking; 4. To ensure the driver maintains steering control while braking and prevent rear axle skidding. The working principle of ABS is: During emergency braking, highly sensitive wheel speed sensors installed on each wheel detect wheel lock-up. The computer then controls the pressure modulator to release pressure from the wheel's brake caliper, preventing the wheel from locking up.