To truly evaluate the braking performance of a vehicle, you need to design three dimensions of indicators:

1) Braking performance.

That is, braking force and braking distance;

2) Stability of braking performance

Braking heat and water will cause performance degradation, so it is necessary to evaluate the thermal decay resistance and water degradation resistance of the brake;

3) Stability of the vehicles direction during braking

In other words, the brakes must not only stop the car, but also stop the car at the driver's designated place. This does not allow the vehicle to experience side slips (locking the rear wheels), losing steering ability (locking the front wheels), etc. - how many accidents are caused by the loss of control of the vehicle while braking.

The role of ABS is not to reduce the braking distance

It is often seen that everyone is discussing whether the braking distance is increased or decreased after installing ABS. In fact, the card friends who discuss this issue may not understand the design purpose of ABS.

Still returning to the question raised at the outset: Evaluating the braking ability of a car is divided into three dimensions. The simplest and most effective way to reduce the braking distance is to increase the braking force of the vehicle - a large brake drum and a wider tire. The emergence of ABS is to solve the third problem: to improve the direction stability of the vehicle when braking - its name translated into Chinese is actually "anti-lock braking system."

Many old drivers know that the car's front wheel lock will cause the vehicle to lose steering ability; if the rear wheel is locked, there will be a tail-flick phenomenon (the high-level brothers will drift according to this principle). The best braking state is to let the wheels "slip on the side". At this time, the braking distance is short and the car will not get out of control. Therefore, before the ABS, the old driver will use the brake method to let the vehicle enter this state.

To sum up, the brakes are lightly pressed, and the brakes are not big enough when the wheels are completely locked. If the brakes are heavy and the wheels are completely locked, the direction is easy to get out of control, so it is necessary to grasp the middle degree. Everyone knows that the reaction speed of the machine must be much faster than people, so use the sensor, small motor to help people operate the brakes, and find the middle one that can take into account the braking distance and the stability of the brake.

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