Why does the brake of your car fail? That's why
The brake pedal is connected to a brake master cylinder, just like a needle tube, which is filled with brake oil. When you step on the brake, it is equivalent to stepping on the piston of the needle tube, so that the piston pushes the brake oil forward. The brake oil pipeline is connected to the four wheel brake wheel cylinders, which are connected to the brake pads. The brake oil moves forward, and then pushes the brake wheel cylinder at the four wheels to move. In fact, the brake wheel cylinder is also a piston, which pushes the brake pads to move for braking. These forces are transmitted through brake fluid. Of course, because the pipeline is relatively long, the braking force required is also relatively large, and it is too tired to rely on our feet to complete each time. Therefore, a power pack is installed at the brake master cylinder to help our feet, so it is easy to step on the brake. When the following parts are damaged, the brake will fail. Let's get to know!You should know that the brake oil is the transmission of force. If there is no brake oil, the force cannot be transmitted.
There must be no brake. Brake oil leakage is rare, because the pipes are iron and not easy to break. However, a small section of pipeline at the brake wheel cylinder is rubber, so the leakage point is often here. The rubber is aging or cracked under the influence of external forces. When one of the brake hoses leaks, the brake can still be stopped when you step on the brake. Because there is no leakage in other brake hoses, there is still a certain brake pressure. However, the braking effect becomes worse and the braking distance becomes longer. The feeling on my feet is that the brake becomes soft, and the brake pedal will be slowly pressed to the bottom. This kind of feeling must be caused by the brake oil leakage, so you can't continue driving.
lso, the brake pads are gone, or the friction coefficient of the brake pads is reduced due to overheating. Because the brake pad is the terminal executor of the brake, it will not be able to brake without it, and the brake will fail. If you step on the brake for a long time on a long downhill section, the friction coefficient will be greatly reduced due to the overheating of the surface, and large friction cannot be generated, so you cannot brake. These two situations can be avoided. First, there will be a prompt before the brake pads wear out. Pressing the brake will make a squeaking noise, which is very obvious. If there is a noise, check the brake pads first. Do not always step on the brake in long downhill sections. Use the brake in gear to control the speed