
The functions of the braking ABS system are: 1. Automatically controlling and adjusting the wheels; 2. Preventing the vehicle from experiencing braking deviation, spinning, or fishtailing during emergency braking, which could result in loss of directional control. The working principle of the braking ABS system is: 1. Determining the wheel lock-up state based on the speed signals from the wheel speed sensors; 2. Closing the input solenoid valve on the wheel that begins to lock up to maintain the braking force; 3. Opening the output solenoid valve when the wheel is locked up for an extended period, causing the braking pressure on the wheel to rapidly decrease through the pipeline connected to the brake fluid reservoir, preventing the braking force from completely locking up the wheel.

Yesterday when I was driving my kid to school, I almost rear-ended another car. Thank goodness the ABS saved us. It was raining, and the taxi in front suddenly slammed on its brakes. I instinctively stomped on the brake pedal as hard as I could. Then the brake pedal started pulsing with vibrations, but I could still steer, and the car came to a smooth stop without skidding. My neighbor who's a mechanic explained that was the ABS working to prevent wheel lockup and loss of traction. Now whenever I drive on slippery roads, I deliberately test emergency braking to feel that rhythmic brake pedal feedback. By the way, it also shortens braking distance - last time I tested it on the highway, stopping from 100km/h took at least two car lengths less than my old car without ABS. This feature can really be lifesaving in critical moments. I recommend all new drivers find a safe place to experience how it responds.

I've been in this industry for twenty years and have dismantled too many crash scenes involving cars without ABS. Simply put, ABS is a system that prevents wheel lock-up during emergency braking. When the wheel speed sensor detects that a wheel is about to stop rotating, it releases brake pressure dozens of times per second. Why is this so important? Because locked wheels are like ice skates—they can't steer and increase braking distance. Last week, I handled a case where the driver braked hard on icy roads, and the ABS intervention allowed him to steer away from the guardrail. In contrast, a decade-old Jetta without ABS hit a tree under the same conditions. Now, I recommend checking the wheel speed sensors every six months, especially in northern regions where snow and mud can cause misjudgments. Don't underestimate this little box—its high-frequency pumping sound represents your last bit of control.

I remember my driving instructor repeatedly emphasized during the license test: 'Don't release the pedal when you feel it kicking back during braking.' Only after buying my own car did I understand - that's the ABS at work. It's like having a smart mechanical hand helping you pump the brakes, keeping the wheels slightly rotating. Once when exiting a mall's underground garage, an e-bike suddenly darted out from the sloped exit. I slammed the brakes hard. Though the tires screeched, the car didn't skid sideways, stopping steadily half a meter away from the person. Compared to the old Santana at driving school that would spin during emergency stops, my new car feels so much safer. Now I know it helps most when driving on snow - keeping the tires rotating can maintain traction through the tread grooves. I'd suggest even friends in southern regions check it during seasonal changes, as rainy highways can be equally dangerous.


