A little problem with electric cars? Why do electric cars always have some minor faults?

Hello, your problem is that when you flush the electric vehicle, you get water into the motor UMC, it is recommended to go to a professional electric vehicle maintenance shop to disassemble and wipe the motor, or put it in the sun to expose it to the sun (dry the water inside).

The sound of 555 is the sound of moisture in the motor and the friction of parts in the motor, so it must not be started.

Remember, 1. The battery power supply head and the car body are separated, and they must not be connected.

2. Don't turn on the power supply, if you force the power supply, it is possible to burn the motor, which is not cost-effective, the motor is an important component, and it is more expensive.

3. Don't rinse the electric car in the future, the sealing of the electric car is not very good, you can wipe the motor and car body with a damp cloth, and connect the power supply after the water on the car is completely dry.

Finally, I wish you a speedy solution to your problems, be happy, and take care.

Happiness and health for the whole family!!

ps: I'm doing electric car province ** :) happy.

Hehe! It seems that those who do electric vehicles don't know much about electric vehicles!

The most vulnerable thing to damage in the water of electric vehicles is the controller, why didn't you mention it?

Tell the electric car repairman about the situation, and the first thing he thinks of is whether the controller is broken, and only checks whether the motor is broken when the controller is not broken.

Excuse me! I may be rude, please understand!

I'm an electric car repairer.

If your controller is broken, its replacement price is: 40-100 yuan for brushed and 120-220 yuan for brushless.

Is it that the wires are mixed, and the wire ends are wrong.

One. The battery does not charge.

1.The fuse in the battery fuse tube is broken and the fuse needs to be replaced;

2.If the contact between the battery fuse and the fuse seat is poor, adjust the position of the two good arguers to make it in good contact;

3.If the charger is in poor contact with the AC 220V power supply, plug it back in;

4.If the charger indicator is abnormal, replace or repair the charger.

5.It may be that the battery voltage is too low due to not riding for a long time and not charging the battery, and the charger cannot recognize the battery and needs to activate the battery.

Two. The dashboard indicator light is not on.

1.There is no voltage between the positive and negative leads of the dial, and the connector is in poor contact or the lead is broken, and it can be re-plugged;

2.If the light-emitting tube is damaged, replace the light-emitting tube;

3.Dial wiring problems, replace or repair the instrument circuit board.

Three. Sometimes the motor turns, sometimes it doesn't.

1.The battery is low, fully charge the battery;

2.If the contact of the battery contact is poor, adjust the position of the contact head or polish the contact;

3.Check whether there is dirt in the speed control handle, and if it still cannot be used normally after wiping it clean, you need to replace the speed control handle.

4.Wire problems, poor contact between the lead wires from the controller to the handlebar.

Four. The power does not go.

1.Check whether the left and right brake handles are powered off.

2.Check whether the right-hand handle speed control cable is falling off, and whether the controller or motor connector is falling off.

3.The battery connection cable is virtually connected.

Five. Riding is strenuous and slow.

1.Check if the brakes are locked;

2.Check if the inner tube air pressure is appropriate;

3.Check that the battery voltage is sufficient. First accompaniment.

Six. Electric cars are not as fast as they used to be.

1.Mechanical failures are inflexible and require maintenance and lubrication.

Our country is relatively late in selling orange in the town of electric vehicles, so the quality of electric vehicles so far is not said, it can be said that it is completely over-the-round, so it is natural that there are some small problems with electric vehicles.

The top 10 common faults of electric vehicles are as follows:Phenomenon 1: Turn on the power, the instrument has no display, and the speed is not adjusted.

Phenomenon 2: Open the electric door lock and the whole vehicle has no electricity.

Phenomenon 3: When the power is turned on, the instrument display is normal, and the speed is not adjusted.

Phenomenon 4: The mileage of a single charge is insufficient.

Phenomenon 5: Turn on the headlight motor does not rotate.

Phenomenon 6: Automatic power off while driving.

Phenomenon 7: The battery cannot be charged.

Phenomenon 8: There is no electricity (headlights and horns are normal).

Phenomenon 9: There is an inexplicable abnormal sound in the whole vehicle.

Phenomenon 10: Riding is strenuous and slow.

Types of Electric Vehicle Batteries:There are two types of batteries used in electric vehicles, one is a lithium battery and the other is a lead-acid battery.

Lithium batteries are one of the most commonly used types of batteries in electric vehicles, and their market occupancy is the highest. It is a battery with an electrode made of lead and its oxide, and the electrolyte is a sulfuric acid solution. NiMH battery is an upgraded version of nickel-cadmium battery, and it has a memory effect, which will shorten the battery life if you are not careful.

At present, ternary lithium batteries are mainly used in electric vehicles. Ternary lithium battery is low, low maintenance cost, ingenious manufacturing process, stable function, good applicability, and high rate. However, it is bulky and has poor durability.

In addition, lead-acid batteries and small lithium batteries are mainly used in battery cars and electric motorcycles. However, nickel-metal hydride batteries generally have the characteristics of high energy density, good low-temperature function, no memory effect, strong anti-overcharge ability, safety and pollution-free. Poor high temperature resistance, low working voltage, overall** higher than lead-acid batteries and lithium batteries, but the overall function is worse than lithium-ion batteries.

It doesn't matter if you don't get angry. In fact, the impact of not riding electric vehicles on future life is not very large, riding electric vehicles is more convenient and fast, if you do not know how to ride electric vehicles, you can choose other ways of travel according to the living standards of each person, such as green and low-carbon environmental protection travel methods: walking, taking buses, sharing bicycles, or better conditions can be called online car-hailing, taxis or anything is also very convenient.

Learn simple tricks for electric vehiclesFirst of all, find a spacious place where there is no one and no car, start to learn to ride a battery car, turn off the electricity, sit on the car, put your feet on the ground, push the car and run for two hours, do this step to get familiar with the car, turn on the electricity, drive along a straight line, turn to the end, slow down when turning, continue to drive straight, drive around the four sides, slow down every corner, get on the road, wear a helmet, and keep to the right. Go to the left and hit the left direction light, go to the right and hit the right direction light, and ride more, the more courage you will have, and you will ride.

The reasons why electric vehicles are good and bad in riding are:

1. It may be because of the failure of the brake power-off device, those who know the electric vehicle know that a lot of power-off protection devices are installed at the brakes of the electric vehicle, and when the brakes appear rusty, the spring is broken, and the brake pads are damaged, etc., the brake power-off protection device will start. So the owner can try to replace the brake parts to get the electric car back to normal.

2. There is a problem with the acceleration line. The wire is divided into red, black and blue three colors, the owner can test the voltage of the three wires to accelerate the turn, if the voltage is abnormal, either there is a problem with the handle or there is a problem with the wire, the owner can choose to replace the handle or the wire according to the actual situation.

3. Motor failure of electric vehicles, which is also one of the most common faults of electric vehicles. Motor failure is also known as Hall sensor commutator failure, generally speaking, to detect motor failure is to use a multimeter to test the voltage corresponding to the wire, if it can be confirmed that there is a problem with the Hall sensor, then the solution is to replace the broken sensor.

4. Internal fault of the wiring harness of the electric vehicle. Because some wiring harnesses of electric vehicles are exposed, they will age and be oxidized and corroded over time, which will also lead to the phenomenon that electric vehicles have electricity but cannot move. Generally speaking, the additional test method of the wiring harness is to separate the outer skin of the wiring harness to see whether the inner wire is oxidized and corroded, if the inner wire is gone, then the wiring harness needs to be replaced.

Use and maintenance:

1. The height of the saddle and handlebar should be adjusted before the use of the electric bicycle to ensure the comfort of riding and reduce fatigue. The saddle and handlebar height should vary from person to person.

Generally, the height of the saddle is suitable for the rider to be able to land reliably on one foot (the whole vehicle should be basically upright), and the height of the handlebar is suitable for the rider's forearms to be flat and the shoulders and arms relaxed. However, the adjustment of the saddle and handlebar should first ensure that the insertion depth of the pipe and handlebar riser must be higher than the safety mark.

2. Check and adjust the front and rear brakes before using the electric bicycle. The front brake is controlled by the right brake handlebar, and the rear brake is controlled by the left brake handlebar. The adjustment of the front and rear brakes is suitable for reliable braking when the left and right brake handle reaches half of the stroke; The brake skin is excessively worn and should be replaced in time.

3. Check the tightness of the chain before the electric bicycle acts. If the chain is too tight, the pedals are laborious, and if they are too loose, they are easy to shake and rub against other parts. The sag of the chain is 1-2mm, and it can be properly tightened when riding without pedals.

When adjusting the chain, loosen the rear wheel nut first, adjust the tightness of the chain by evenly screwing in and out the left and right chain adjustment screws, and re-tighten the rear wheel nut.

4. Check the lubrication of the chain before using the electric bicycle. Feel and observe whether the rotation of the chain shaft is flexible, and whether the chain link is seriously corroded. If it is rusted or the rotation is not flexible, an appropriate amount of lubricating oil should be added, and the chain should be replaced in serious cases.

5. Before riding the electric bicycle, check whether the tire pressure, handlebar steering flexibility, front and rear wheel rotation flexibility, circuit, battery power, motor working conditions, lights, horns, fasteners, etc. meet the requirements of use.