What is the brake system of the car, and why do some need brake fluid

1. Analysis of possible causes.

1. It is the lack of necessary maintenance of the brake system, there are too many impurities in the brake master cylinder, the sealing is not tight, the vacuum booster pump fails, the brake oil is too dirty or the air resistance occurs after the mixing of several brake oils after heating, the brake master cylinder or sub-cylinder leaks, and the air leakage of the gas tank or pipeline interface;

2. It is due to improper operation that causes the failure of the parts;

3. Due to serious overload, under the action of gravitational acceleration, the inertia of vehicle movement is increased, which directly leads to brake failure.

Second, the treatment method.

1. Control the direction according to the road conditions and speed, disengage the high-speed gear, and at the same time quickly blast the empty fuel and shift the high-speed gear into the low-speed gear. In this way, the engine will have a lot of traction resistance and the speed of the vehicle will be reduced rapidly. In addition, the handbrake should be used in conjunction with the low-speed gear shift, but it should be noted that the handbrake should not be tightened or pulled too slowly.

If it is pulled too tightly, it is easy to make the brake disc "lock", and it is likely to damage the transmission parts and lose the braking ability; If it is pulled too slowly, the brake disc will wear and ablate and lose its braking effect.

2. Use the bumper, carriage and other rigid parts of the car to rub and collide with natural obstacles (rocks, trees or soil slopes) on the side of the road to achieve the purpose of forcibly stopping and getting out of danger, and reduce the accident loss as much as possible.

3. If the brake fails when going uphill, it should be reduced to medium and low gear in time to maintain sufficient power to drive uphill to the top of the slope and stop. If you need to park on a half-slope, you should keep the forward low gear, tighten the hand brake, and the personnel with the vehicle should use stones, skids and other objects to jam the wheels in time. If there is a backward slippage, the rear of the car should face the hillside or the safety side, and the headlights and emergency lights should be turned on to attract the attention of the vehicles in front and behind.

4. When the downhill brake fails and the speed of the vehicle cannot be controlled by the mechanism of the vehicle itself, the driver should decisively use natural obstacles, such as rocks and trees on the side of the road, to cause resistance to the car. If you can't find a suitable terrain or object to use for a while, in an emergency, you can move one side of the car closer to the side of the mountain, and gradually reduce the speed of the vehicle by rubbing to increase the resistance.

5. The vehicle should step on the brakes when going down a long slope or a steep slope, regardless of whether there is a situation or not. It can not only test the performance of the brakes, but also buy time to control the speed of the vehicle when the brakes are found to be out of order, also known as predictive braking.

3. Preventive measures.

Do not ignore the daily maintenance of the brake system, in order to prevent the occurrence of brake failure, please maintain the brake system in time, regular maintenance and overhaul is essential, for the safety of life, you must not ignore the regular maintenance.

Note: Check whether the brake shoes are in good condition, and do not overuse the brakes, hang the low gear when going downhill, use the brake of the engine to let the car drive, supplemented by the foot brake; Avoid severe overloading to prevent brake failure.

Foot kills are all with brake fluid.

Hello, the trolley braking system is all hydraulic. Brake fluid transmits braking force.

Hello modern cars are hydraulically assisted, so brake fluid is required.

Hello; Brake fluid (brake fluid) oil pot is generally in the cabin, firewall (in front of the steering wheel), the normal brake fluid level should be between the upper and lower engraved lines, when the brake fluid level is insufficient, there will be a decrease in braking performance, affecting the safety of the car, daily inspection or maintenance, should check the brake fluid level, color, water content, etc. The main reasons for the decrease in brake fluid:

1. After the brake disc and brake pad are worn, the brake fluid fills the space and the liquid level decreases after the gap is automatically compensated; It is recommended to check and replace the brake pads and brake discs (generally replace the brake pads 2 times and replace the brake disc 1 time);

2. There is leakage in the braking system: such as the brake fluid oil pot, the piston sealing ring inside the brake master cylinder (the brake fluid may leak into the brake vacuum booster pump, and there are almost no traces of oil leakage outside, loosen the connecting screw of the brake master cylinder for inspection. ) and oil pipe joints, brake pipelines, brake cylinder piston sealing rings, oil pipe joints, exhaust screws, etc.; Accompanying the phenomenon, the braking effect is poor, serious, the brake pedal is easy to kick to the end, no brake, in the process of pedaling, another person can find the leakage part;

3. For manual transmission vehicles, clutch operating mechanisms (such as clutch master cylinders and clutch sub-cylinders) will also use brake fluid to transmit force, therefore, for manual transmission vehicles, if the brake fluid is missing, do not ignore the maintenance of clutch system related components.

Brake problems can't be ignored.

Seriously affecting the transmission response of the brake will cause air to enter the brake line and cause the brake to fail or not brake.

Most small cars use hydraulic braking, because the liquid can not be compressed, can transmit almost 100% of the power, the basic principle is that the driver presses the brake pedal, to the brake oil in the brake master cylinder, the liquid will transmit the pressure through the pipeline to the piston of each wheel brake caliper, the piston drives the brake caliper to clamp the brake disc to produce huge friction to slow down the vehicle.

The brake fluid is used as a medium to flow in the brake line to transmit power, so if the brake fluid is gone, the air will enter the brake line, which will lead to brake failure.

Precautions for the use of brake fluid:

1. Different types of different brands of brake fluid can not be mixed, due to different formulas of brake fluid additives or different indicators of brake fluid, there will be different effects when used.

2. If the brake fluid inhales water or other impurities, the filter should be replaced in time to avoid insufficient braking force during braking and affecting the braking effect.

3. In the process of driving, if there is a brake deviation, it is recommended that the owner of the car brake system for a comprehensive inspection, if it is found that the brake cylinder bowl is too expanded, it means that there may be a problem with the quality of the brake oil, and the brake oil and the bowl need to be replaced in time to ensure the normal use of the brake system.

The role of automobile brake fluid: 1. It can effectively lubricate the moving parts of the brake system and prolong the service life of the brake cylinder and leather bowl2. Anti-corrosion and anti-rust effect, no corrosive to metal and non-metallic materials of the brake system;3. Adapt to various environments to ensure the flexible transmission of braking force under high temperature, severe cold, high speed, humid heat and other working conditions4. The role of energy transfer and heat dissipation.

The car is one of the means of transportation that everyone usually travels and can't do without, and daily maintenance is indispensable to ensure the normal operation of the vehicle. In addition to ensuring that the car runs normally, it is also very important to ensure that the car can brake normally. Checking brake fluid is a very critical part of daily maintenance, so what is the role of car brake fluid?

The brake fluid we are talking about, also known as automobile brake fluid, is the indispensable "blood" of the vehicle braking system, it is a functional liquid that transmits pressure in the vehicle braking system and enables the braking system on the wheels to realize braking action, and its main role is to transmit energy, heat dissipation, anti-corrosion and anti-rust and lubrication of four modes such as a large block.

It is also because the duty of the brake fluid is to transmit the brake pressure, so the brake fluid also has the following characteristics:

1.It can adapt to a variety of harsh environments, such as high temperature or high pressure or low temperature and damp heat, etc., in these environments, you can complete your work normally and ensure the transmission of braking power!

2.Due to the environment in which the brake fluid is located, the brake fluid also has the ability to corrode metal or non-metallic materials

3.It can lubricate other parts of the brake system.

4.Since the braking process is also converted from kinetic energy to heat, some of the converted heat energy is also dissipated into the air, and the other part will also be transferred to the brake fluid! It is also required that the boiling point of brake fluid should be very high, so as to avoid the brake fluid boiling in the braking process of the car, which will have an impact on the transmission of brake pressure!

Precautions for using brake fluid: Messy light.

1.In the event of an emergency with brake fluid, alcohol or high liquor can be used temporarily, and the brake system should be cleaned up as soon as possible after use, and the brake fluid should be replaced as soon as possible!

2.Brake fluid also has a shelf life, usually about 2 years, run 50,000 can be replaced, the north and south are also different, the air humidity is also related, you can shorten the life!

The maintenance of brake fluid is very important, if it is not handled properly, it will cause a lot of adverse effects on the entire braking system, and then bring a lot of hidden dangers to driving safety. The role of automobile brake fluid is introduced here.

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Photo by Pacific Automobile Network Q&A).

The functions of automobile brake fluid are as follows:

1. The freezing point of automobile brake fluid is very low, and it has good fluidity at low temperature;

2. The boiling point of automobile brake fluid is extremely high, and there will be no gas resistance under the state code of high temperature;

3. When the automobile brake fluid is used, you will find that its quality changes very little, and it will not cause the erosion of metal and rubber.

The use of car brake fluid needs to be imitated and praised:

1. If gasoline, diesel or engine oil is accidentally mixed into the braking system using synthetic brake fluid, the braking effect will also be reduced due to the incompatibility between the oils.

2. If the vehicle travels normally for 40,000 kilometers or the brake fluid is used continuously for more than 2 years, the brake fluid is easy to deteriorate due to long use, so it is necessary to pay attention to timely replacement.

3. Vehicles equipped with brake fluid level alarm devices should observe whether the alarm indicator light is shining at any time, whether the performance of the alarm sensor is good, and when the brake fluid is insufficient, it should be added in time, and the stored brake fluid should be kept between the lowest capacity scale and the highest capacity scale of the calibration.

4. In the normal driving of the vehicle, if the brake is light and the wheel is heavy, the brake oil should be replaced in time, and the braking system should be cleaned with alcohol before replacement.

5. When the vehicle brakes deviate, the braking system should be comprehensively checked. If it is found that the leather bowl of the sub-pump is too inflated, it means that there may be a problem with the quality of the brake fluid. At this time, you should choose a better quality brake fluid to replace, and replace the leather bowl at the same time.

6. When changing seasons, especially in winter, if you find that the braking effect decreases, it may be that the level of brake fluid is not suitable for the winter climate.

7. Different types and different brands of brake fluid should not be mixed, and specific brands of brake fluid should be added to the brake system with special requirements. Due to the different brands and different types of brake fluid formulations, mixing brake fluids can cause a decrease in brake oil properties. Even those brands that are better miscible and indicate that they can be mixed or substituted are not satisfactory in use, so do not use them for a long time.

8. When water is mixed or inhaled in the brake oil, or the brake fluid is found to have impurities or sediments, it should be replaced or carefully filtered in time, otherwise it will cause insufficient braking pressure, which will affect the braking effect.

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