What s going on with the intermittent sound of a Hello electric car?

New national standardsElectric bikesIt is required that the speed exceeding 15 kilometers per hour must be sounded, and this is the sound of the alarm.

According to the way of power supply, it can be divided into two categories, one is to connect an external power supply to obtain power, and the other is to use fuel cells, energy storage devices (such as energy storage batteries, supercapacitors).

etc. as electricity.

Classification by drive mode: pure electric vehicles.

Hybrid electric vehicles (series, parallel, hybrid), fuel cell electric vehicles.

Precautions for electric vehicles:

1. Pay attention to the maximum mileage of the electric vehicle itself. The key component of the electric vehicle is the battery pack, and the capacity of the battery pack determines how far the electric vehicle can run, so it should be understood clearly when buying.

2. Strictly abide by traffic rules. Electric vehicles, like cars, should strictly abide by traffic rules, especially intersections or T-junctions, which is a value for life and respect for other car drivers.

Drove the electric car and opened the meeting, there was an intermittent sound, well, if it wasn't for the parts of the electric car to be loose, then there would be some reminders in his program settings.

Hello, there will be an intermittent sound when the electric car is opened, which may be due to the sound of the motor, so we can directly ride until it is indeed a motor problem, and we can directly replace the new motor.

If this one is on, it will have an intermittent sound, probably because it is running out of power, and you need to quickly find a place to park, stop it, and then turn it off. That's it.

Actually, it's not like that, you just take it to someone else to help you unplug one of the things inside, and he will limit the speed and keep dropping, and people will tell you when you buy it.

If this happens, it should be the sound caused by which line of the motor needs to be connected poorly.

You'd better go to this repair point and let the master check what the problem is for you.

It is normal for the motor to have a buzzing sound when it is working, if the sound is intermittent and abnormal, then there is a problem with the motor. Also, when the power is not on, support the consequences, turn the tires with your hands to see if the motor runs smoothly and whether there is any abnormal noise.

It may be that the power converter that controls the motor is not good, or the speed regulating mechanism in the grip used for speed regulation is too worn out due to long-term use. You can go to the department that repairs the electric car or you bought the car and ask them to check it out.

The electric car will keep ringing because of the short circuit of the line.

1. The circuit of the switch and the horn is on, it may be that the switch in the circuit of the horn is broken and needs to be replaced.

2. It may be that the line of the horn is short-circuited, and the horn has been turned on without passing through the switch, and the short-circuit is separated by insulating tape.

3. The electric vehicle enters the water after being exposed to the rain, resulting in a short circuit in the line.

Ways to serve the battery longer:

1. Be fully charged and shallow. Don't recharge when empty, you can charge at any time, and when you charge, you must be sufficient.

2. It can be used after changing the light, when it is best to charge it for an extra hour and then turn off the power, when it should not exceed 2 hours.

3. If you don't use it for a long time, you must charge it once every 20 days or so.

4. If the light does not change after charging for more than 8 hours, the power supply should be cut off, and the test should be sent for inspection to find out whether it is the battery or the charger, and repair it at the extreme time to prevent the battery from overcharging and bulging.

5. If it is convenient, it can be manually assisted when the car is uphill or when the wind is struggling, so as to reduce the strong discharge of the battery.

The alarm will sound every few hours after locking the car because the vehicle alarm does not detect the front-end sensor or the front-end sensor sends an alarm signal, and the vehicle alarm will then send out an alarm.

In this case, it is difficult for ordinary car owners to distinguish which ones are abnormal noises and which ones are reasonable abnormal noises. Only nearly 20% of the vehicles that went to the repair shop to detect abnormal noises really had problems. Models equipped with turbocharged engines distinguish between sound and natural suction; Models with engine guards may also make noises due to friction; After some car owners come into contact with different cars, it is likely that due to their lack of understanding of mechanical knowledge, they mistake reasonable abnormal noise as a vehicle failure.

Therefore, learn to distinguish the abnormal noise of the car and avoid wasting time and energy.

How to identify the sound of a car:

In practice, due to the limitations of working conditions, it is difficult to measure the sound of the car with special instruments, and the sound of the car can only be described and compared with the judgment of the sound in daily life. For example, the "rattle" sound caused by the dry friction of the bearing, and the "click" sound similar to the small hammer hitting the cement floor caused by the excessive valve clearance.

1. Correctly distinguish between normal and abnormal sounds.

The vibration of each mechanism in the work of the car will emit a variety of sounds, but the sound does not mean that the car is faulty, in order to avoid unnecessary disassembly, we must first distinguish between normal sound and abnormal noise. The normal vibration sound of each system component (such as the noise on the surface of the engine), the impact sound of the gear when shifting, the air intake sound and exhaust sound of using gas as the working source, and the gear meshing noise are all normal sounds. Abnormal noise (abnormal noise) can be divided into slight noise, general noise and malignant noise according to the impact on the performance of the car.

Slight noise, such as the flashover sound of high-voltage electric leakage, the slight loose sound of rolling bearings, etc., the general volume is small, the degree of wear of the parts is not large, and there is no significant change for a long time, and this kind of fault can still maintain the normal operation of the car without repair.

3. When diagnosing abnormal noise, attention should be paid to creating good auscultation conditions and trying to eliminate the interference of other noises, so as not to affect the accuracy of judgment.

It is best to consciously amplify or reduce the sound, that is, use a screw or other metal rod as a stestological instrument to contact the sound part to amplify the sound, or use a single cylinder fire cut-off to reduce the sound to meet the diagnostic needs. The auscultation site should be kept quiet to minimize human interference.

Hello. Friends two-wheeled electric vehicle buzzing, the reasons and solutions are as follows: 1. The motor connection line is loose or the screw hole is loose, and the connection line is broken, resulting in unstable start and loud noise.

Solution: Disassemble the motor connector, see whether the line is firmly connected, whether there is a broken wire, and reconnect the motor line connector. 2. If it is caused by the damage of the motor Hall, the universal control of the electric vehicle damaged by the Hall will not be too well matched at the beginning or the signal transmission will not be smooth, which will cause the motor to start loudly.

Solution: Replace the motor Hall. Check out your friends, I hope it can help you.

The battery car keeps clattering after running out of power, which is to remind the driver that the battery is out of power and needs to be charged as soon as possible.

The battery is a wearing part that needs to be replaced regularly, and the performance of the battery may continue to deteriorate as the number of charge and discharge times increases.

During charging and discharging, the ions in the battery will be in the electrolyte.

Some ions react chemically with the electrolyte as they move in the electrolyte.

As the number of charge and discharge times increases, the number of ions in the battery decreases, and of course the battery's performance may also decline. If you can maintain accurate car habits, this can still have an effect on extending the life of the battery.

Electric vehicle battery maintenance.

1. The new battery should be fully charged before riding.

When many people have just replaced the battery of an electric vehicle, they are happy to use the battery first and then charge it. In fact, this approach is wrong, because the new battery has a turnover process from the factory to the loading to your hands, and the battery itself will self-discharge during this turnover process, and there will be a lack of power, and at this time, if it is not full and ride directly, it will accelerate the battery loss, which is not conducive to the maintenance of the battery.

Therefore, the correct way to do is to fully charge the new battery with the charger before choosing to ride, which is more conducive to extending the battery life.

2. If you don't use the electric car for a long time, you should also charge it every other month.

Many people may be hot in summer and are reluctant to ride an electric vehicle, and the electric vehicle will be placed for a long time, which will cause the battery to lose power, if it is placed for a long time, it will cause sulfation of the battery plates due to the loss of power, greatly reducing the battery life, and even scrapping. Therefore, the correct approach should be to charge the battery every other month, so that the battery life can be extended during the long period of time when the electric vehicle is not used.

3. Avoid high temperature environment.

Under charging, if the source is not high, it is necessary to overcharge the hail shed.

In summer, some people like to charge anywhere for convenience, and even charge in the sun, but they don't know that the temperature of the battery itself is very high in the process of charging and discharging, and if you also choose to charge in a high-temperature environment, it is easy to cause the battery to charge and reduce the service life of the battery.

1. Abnormal noise caused by bearing failure: the bearing beads may be worn, and the ring socket of the bearing will be worn out, resulting in "grinding the outer circle" and losing the shaft! The rear wheel bearing wear gap is large, the motor will sweep the chamber, and the serious steel ball will fall off the coil and scrap it, and the front and rear wheels will be heard to have abnormal noises, and the bearings will be replaced in advance if they are damaged.

2. Abnormal noise caused by brake failure: it may be caused by factors such as brake pads falling off, brake spring breaking, brake line rusting and not returning; The sound of braking while driving, you must pay attention to it, in case the brakes are not effective, there will be danger;

3. Abnormal sound caused by shock absorption failure: shock absorption is a component that slows down the buffer force, after going back and forth to reduce pressure and rise, it is inevitable that there will be no failure, especially the shock absorption damage of the bumpy road shock absorption shaft is easy to break, hear the shock absorption has abnormal noise, slight can add a little lubricating oil to eliminate the fault, if the sound is heavier, it needs to be replaced in time;

4. Abnormal sound caused by flywheel failure: In rainy days, rain or mud on the road will invade the flywheel, and in the long run, if you do not pay attention to the maintenance of the flywheel, it will cause the flywheel to rust, and there will be noise and abnormal noise when riding after rusting.

5. Abnormal sound caused by loose screws: Generally, the screws are not tightened and loosened, resulting in loose extrusion of the rim hole and screws.

6. Abnormal noise caused by the rupture of the shell: the wheel shell and the plastic shell of the rear wheel will also produce abnormal noise when the plastic shell is cracked and bumped, which not only affects the appearance of the electric vehicle, but also has hidden dangers to a certain extent, so please replace the vehicle shell in time if the shell is broken.

First of all, it is excluded whether the wheels can come into contact with the brake line, frame, plastic parts or other foreign objects when they are rotating, resulting in a sound. Check whether the rear wheel bearing is damaged and replace it with a new one. Check whether the motor hall is damaged and replaced.

Check whether the phase connector between the motor and the controller is in poor contact or broken, and check for replacement.

This should not necessarily have to do with the battery loss of power, the battery car battery loss should be the motor can not rotate, there is no slow shouting strength, and then think that the person who holds it is the motor has a problem. For example, if the motor is flooded, or there is a problem with the carbon brush inside, you have to go to a special repair shop to disassemble it and take a look.

Of course this won't, you can't walk if you run out of power, it won't rattle, it should be a problem with the wheels in the back.

No, you can't walk if you run out of power, and the rattling should be a problem with the wheel bearings or spokes behind you.

It shouldn't matter, I hope it helps, thank you!

If the rear wheel does not sound when the power is lost, it may be that the bearing is broken.

No, the loss of power will only not move, and the rear wheel will not ring.

Summary. Hello car owner, I am a car master who has been repairing cars for 15 years, and I am happy to answer for you.

The electric car horn has been ringing non-stop, the main reason for your situation is that the switch of the electric car horn is broken, and then the switch is easy to break due to frequent rain, you can make a protective measure. And this switch is also very cheap, maybe 5 yuan or 10 yuan can be replaced. For example, the headlight switch and turn signal switch of electric vehicles are relatively easy to break, because if it rains, water will go in, and it may be used for a few months and half a year.

Hello car owner, I am a car master who has been repairing cars for 15 years, and I am happy to answer for you. The electric car horn has been ringing non-stop, the main reason for your Lu Sui rolling this situation is that the switch of the electric car horn is broken, and then the switch is easy to break due to frequent rain, you can do a protective measure. And this switch is also very cheap, maybe 5 yuan or 10 yuan can be replaced.

For example, the headlight switch of electric vehicles and the turn signal switch of finch residue are relatively easy to break, because if it rains, the water will go in, and it may be broken for a few months and half a year.

Brake wear:If you find that the brakes cannot be braked during driving, and there is a squerping sound, then it is possible that the brake pads have been seriously worn, or the brake pads may have fallen off, so the brake pads should be replaced at this time.

Pressure bearing wear:The pressure bearing bears the turning activity force, and it is easy to cause damage due to frequent friction, if the steering is difficult, please overhaul it, so as to avoid the danger caused by the steering and vulnerable fork, and the damage of the pressure bearing increases the turning friction and makes a sound.

Precautions for driving electric vehicles.

As we all know, the protective facilities of electric bicycles are weak, and the probability of damage of electric vehicles in traffic accidents is relatively large, and the consequences are more serious, so riders must wear safety helmets correctly. The helmet worn by the rider of an electric vehicle is equivalent to the seat belt worn by the driver of a car, and is the last line of defense in the event of danger.

At intersections with traffic lights, follow the instructions of the traffic lights, get off the car, take the zebra crossing, do not cross diagonally, and minimize the time spent on the road; At intersections where there are no signal lights, pay attention to ensure that it is safe to pass through.