ABS full name anti-lock brake system, the intention of installing the system on the car is not to shorten the braking distance, but to avoid the tire's lock and slip during the sudden braking, so that the car can get the minimum direction control ability, avoiding the occurrence More serious accidents. In fact, the working principle of ABS is not difficult to understand. Simply put, it is through the brakes when braking, instead of directly locking the tires of the traditional brakes, so that the tires are not completely locked and cannot be turned.
Schematic diagram of automobile ABS system system
So, how does ABS work?
An ABS system is quite complex, including a wheel speed sensor, a pressure sensor mounted on the brake pedal, a set of processing units and hydraulic controls mounted on the brake master cylinder, and actuation on each sub-pump. Device.
When you encounter a dangerous situation, subconsciously step on the brakes, the pressure sensor on the brake pedal detects a large pressure signal, the ABS processing system considers that emergency braking is required, and by monitoring the wheel speed sensor, it is known that the wheel speed is indeed Significantly reduced, so I decided to start ABS.
Schematic diagram of the working principle of ABS system
At the same time, the hydraulic control system is started, and most of the hydraulic pressure is sent to the sub-pump of the front wheel as needed. The ABS actuator in the sub-pump controls the sub-pump, and the maximum braking force is applied to the two front wheels. On - maximum braking force - release this operation. This change in braking force is many times in a second. As a result, the wheels begin to perform anti-lock emergency braking. Because the above operation causes the hydraulic pressure to change drastically, the brake pedal that is rigidly connected to the brake system is also affected by the drastically varying hydraulic pressure, so the driver feels that the brake pedal is shaking.
Further reading: Why is there no ABS in the car?
For civilian vehicles, it is necessary to equip ABS in consideration of driver technology. But some high-performance cars that are extremely sporty, such as racing cars, do not have an ABS system. Why is this?
The car is an extreme performance car and does not have an ABS system installed.
Because, for a very extreme performance car like the car, the car itself is designed with the default driver to have a considerable degree of driving skills. Therefore, for this type of car, the extra weight of the ABS system will not only affect the performance, but also affect the driver's perception of the brakes, because the default driver of this type of car can control the car to lock and not lock. Between.
Therefore, in order to maximize the performance of sports, such extreme models, generally do not install the ABS system, relying on the driver's own technology.
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