I haven t used an electric car for a month, why does the disc brake suddenly make a screaming and sc

The disc does not rust for a long time, and the rust powder is rubbed when braking.

As long as you use it a few times, the rust will not ring if it is worn off. Don't grease the dish, if you don't control it well, it may kill you.

It didn't work for a month, maybe the brake pads were rusty, so it made a noise when braking. Ask someone to maintain it, just add some oil.

If you don't ride an electric car for a long time, it is easy to have problems, one is that the battery is easy to break, the brakes are easy to rust, and it is easy to rust in rainy weather, so you still have to ride regularly.

This is because after the rain, there is stagnant water in the thorn car dish, which causes local rust and increases the friction between them, so it will produce a harsh sound, just add some lubricating oil.

I haven't used it for a long time, and the rust inside is a little stuck, so go to the repair shop and clean up the dirt inside, so it's also for safety.

It may be that the brakes have rusted below for a long time, and you go to the car repairer to repair it.

The disc brake can not be washed with water, it will rust after washing with water, and the electric car makes a screeching sound, just because you wash the disc brake with water, the correct way should be to wash it with lubricating oil, and the boss of the car dealership is doing it right.

This is because your EV brake disc has water inside and needs to be lubricated.

I haven't used an electric car for a month, why is the brake a sudden screaming and screeching sound from the disc brake, it should be rusty between the disc brake and the brake for a long time, so it will make a screaming and piercing sound, it is recommended to add some lubricating oil.

It may be a poor contact, or a line obstruction, pay attention to safety. You can check it.

It should be caused by rust in some places after the rain has been drenched.

It may have been rainwater that had accidentally flowed onto it, so it was rusty.

This is because the disc brake has not been used for too long and is caused by too much rust and oil loss, and it only needs to be run in for a period of time, and no special treatment is required!

If you haven't used an electric car for a month, the brake disc is prone to rust spots, and the brake pads are heated and crusty, and there will be a harsh sound if you use it again, so it's good to use it for a few days?

It's not all in a month, the brake disc will rust, and it is normal to make a noise when rubbing against the brake pads, and it's fine in a day or two.

It may be rusty, and it is recommended to disassemble it for polishing.

If the electric car is left for a long time and gets rained, it will inevitably produce big friction and make a harsh sound.

The owner of the car dealership was right.

Generally speaking, if the car is left unridden for a period of time, the car will be prone to problems.

With the rainy season, this is more likely to happen.

After the fuel injection maintenance, you should be fine if you ride more.

You can try this yourself and see what to do, and it's safer to take it for maintenance if it doesn't work.

It's okay, that's why it hasn't been used for a long time and it's raining, or the brake pads are rusty. Use it for a period of time to wear off the rust. But for safety, you'd better go to a repair shop for a maintenance.

1. Electric bicycles.

The brake noise is mostly caused by the rear wheels.

At present, there are three types of braking devices for electric vehicles: holding brakes (holding brakes), expanding brakes, and suspension back brakes. At present, electric vehicles are front brakes with suspension brakes, and rear brakes are holding brakes, which is completely out of the need for low-price competition. In the process of braking, when the speed is too fast or the brake is too fast, and the resistance required for braking is not enough, the brake lever will be retracted to increase the friction between the brake pad and the brake disc, and a harsh "squeak" sound will be produced at this time.

And one of the easiest to make a sound is the brake (brake). The friction drum of the brake is used for a long time (that is, the round iron ring inside the brake will be shiny and smooth when it rotates with the wheel, while the friction plate material is generally processed and synthesized by bakelite, and it will be shiny, smooth and hard after a long time. Brake drums and pads.

Finally, the mirror friction is formed, making a sound, which is the general law of holding the brake, and the brake pad material is better.

In addition, dismantling the rear wheels and sanding the surface of the brake pads with a large sandpaper can also temporarily eliminate the noise. It is recommended to use the rising gate, which almost makes very little noise, and the sensitivity is better than that of the holding gate, but the life of the holding gate is longer than that of the rising gate, and there are advantages and disadvantages.

The color is that the brakes of electric vehicles are well adjusted. After debugging, the desired effect can be achieved. However, there are also inferior brake components, such as the use of this kind of product is not only a problem of noise, but also the actual effect of the brake has serious problems.

It should be a brake pad problem, you can go to the place where the car is repaired and let the master help you take a look, you may need to replace the brake pads.

The causes of abnormal brake noise are as follows:

1. The run-in of new cars, in which the run-in of brake pads is a very important link, usually after running hundreds of kilometers, you can feel that the brakes will be more comfortable;

2. The new brake pads also need to be better combined with the old disc through running-in, and when you first put it on, you will feel that the brakes are very hard, and you usually need to drive hundreds of kilometers to feel better;

3. During the driving of the vehicle, there may be very fine sand particles into the middle of the piece and the plate, and sometimes there will be abnormal noise due to friction.

Regular check-ups. The braking system is essential for the safety of the car. However, the maintenance of the braking system is often overlooked by the driver. It is often necessary to wait until it is found that the brake system is not working properly before the brake system is overhauled.

In this way, it is very likely that the brakes will fail due to sudden failures, resulting in a catastrophe.

Therefore, only frequent maintenance and maintenance of the braking system can ensure the normal operation of the braking system, and then ensure driving safety. The braking system of cars and minivans mainly uses brake fluid to transmit braking force. No matter what braking system, the brake pads (disc) or brake shoes (drum) ultimately perform the brake role.

Therefore, it is necessary to check the thickness of the brake pads or brake shoes regularly.

That's the brake line is a little tight! Loosen it up a little and you're good to go! Thank you for adopting.

It's normal to have a new car.

1. Front and rear wheelsBrake padsIt has been worn out so badly that it causes the brakes to make an abnormal noise

Some electric vehicle users often brake sharply in their daily lives to accelerate the wear of brake pads, and when the brake pads are worn to a certain extent, they will make abnormal noises when braking. In this case, the general solution is to replace the brake pads with new ones. However, it is more important for users to maintain good riding habits, so as to maximize the life of the brake pads.

2. Improper installation causes uneven brake pads, resulting in abnormal brake noise

Some users like to replace the brake pads with new ones after they wear out, and due to improper installation, the brake pads are uneven, and when the user brakes suddenly, there will be abnormal noise. For this situation, the general solution is to ask the maintenance master to reinstall it, so that the abnormal noise can be solved.

3. BeforeDisc brakesThe accuracy is not high, and the friction with the disc is generated, and the guide chain is delayed, causing the brake to make an abnormal sound

Nowadays, most electric vehicles are in a "front disc and rear drum" configuration, or even a "double disc" configuration. However, in order to save costs, some small electric vehicle companies generally choose some slightly lower disc brakes, and this disc brake is often not accurate, and when braking, it will rub against the disc and make an abnormal sound.

In this case, the general solution is to choose to add some disc brake fluid, so that the abnormal noise can be reduced. However, it is more important for users to choose some electric vehicles with guaranteed quality.

4. There are foreign objects entering the platter, causing the brake to make an abnormal sound

Sometimes, due to windy weather, sand and other debris will enter the platter, resulting in an abnormal sound when braking. In this case, you can take the initiative to remove the foreign body yourself, so that the abnormal noise can be solved.

If there is a grinding sound when braking, it is normal. If there is a friction sound without braking, then you need to adjust the gap of the brake pads, and there will be no friction sound after adjusting the clearance.

Because when installing the disc brake, the disc brake pad and the disc are not in a straight line, you can add a suitable gasket adjustment in the fixing screw, the disc brake oil can not be added too full, so it is easy to have a sense of expansion, you can use an 8mm wrench to loosen the exhaust screw, put a few drops of oil, the disc brake blade is worn to the iron plate, it will croak, and it will be replaced in time. The disc disc is injured and affects the braking effect and accelerates the wear rate of the disc brake pads.

Precautions for driving electric vehicles.

It is not advisable to charge after riding. The life of a battery is determined by the number of charge-discharge cycles, and the more times it is charged-discharged, the faster the life will be reduced. Therefore, it should not be charged just after riding an electric vehicle, but should be recharged when the maximum mileage of the battery is 60%-70%.

The charging time should not be too long. Many EV users believe that the longer the charging time, the more battery power there is. This is very wrong.

The charging time is generally extended within one hour after the charger is changed. Long-term overcharging can easily lead to battery deformation, water loss and other phenomena. Thus directly jeopardizing battery life.

This is not a quality issue and will not affect normal driving.

Some cars do not have it, it is the sound of the disc brake pad grinding disc, you can adjust the position of the fixed disc brake pump, so that the two disc brake pads and the disc brake disc are kept parallel and do not shake.

The principle of electric vehicle butterfly brake is the same as that of motorcycles, but there are two kinds of electric vehicle butterfly brakes and line brakes, and the oil brake pushes the oil cylinder of the oil storage chamber through the brake lever to push the brake oil of the oil pipe and then pushes the pump cylinder to clamp the brake disc to achieve the purpose of braking. The wire brake clamps the brake disc by pulling the cord to pull the caliper.

Generally, the brake noise is when the vehicle is driving when the brakes are pressed, and the braking system will emit a sharp metal friction sound, which often appears after rain. If this happens, it is mostly because of the brake pads.

Thinning appeared back plate grinding brake discs.

Brake pads are hard and foreign objects in the brake pads can cause abnormal noise.

In case of abnormal noise, the thickness of the brake pads should be checked first, which is the basis for ensuring driving safety. The brake pads are not thin, and there may be a sound when braking, which is similar to the sound of grinding to the alarm pads, because there are relatively large metal particles in the brake pads, and the sound of friction with the brake disc is also the sound of iron and iron friction.

If the brakes of electric vehicles have a screeching sound, the fastest solution is to replace the brake pads, which is also the most practical and simple method. Electric vehicles are flexible, lightweight, environmentally friendly and practical, so they are suitable for driving on urban roads. Nowadays, most electric vehicles are in a "front disc and rear drum", or even a "double disc" configuration.