The newly bought electric bicycle is shaking so fast that it is riding, what is the reason?

Under normal circumstances, the reason why the car runs fast and the handlebar shakes is mostly because the lower bearing of the handlebar is loose, or the car frame is not right, the front and rear wheels of the car are caused by the scoop, you can support the car ladder and then let the car idle at full speed, observe whether the rear wheel has the phenomenon of scooping, if the wheels are not scooping, it should be the front handlebar loose or the large frame is not right, if the above reasons are excluded, it is the design and quality of the car itself.

Causes: 1. Failure of the shock absorbing direction column.

If the damping direction column is deformed or the balls inside are damaged, the handlebar of the electric vehicle will shake, and in this case, the direction column needs to be replaced to solve the problem.

2. The bearing is faulty.

If the bearing of the electric vehicle fails, such as rust in the rainwater, the steel ball gap in the bearing is large, and when the steel ball in the bearing is out of the bearing, there will be shaking, and the bearing can be replaced only in this case.

3. The wire pressing is loose.

When the wire pressing of the electric vehicle is loose, it will cause instability, and it will shake when riding, so you only need to tighten the wire pressing part.

Electric vehicle maintenance tips:

1. Avoid high temperature exposure. If the electric vehicle is exposed directly to the sun, the probability of battery scrapping is very high, and even the electric vehicle battery will appear at high temperatures.

** phenomenon.

2. Do not charge at high temperatures. The hot weather, coupled with the heat generated during charging, will cause the temperature on the surface of the battery to be very high, ironing the protective shell on the surface of the battery, and even **, so be sure to charge it in a cool place when charging.

3. Do not charge immediately after driving. The temperature of electric vehicles is very high after driving at high temperatures, and if it is charged directly, the temperature of the battery will continue to increase, even exceeding the critical point.

Eventually, spontaneous combustion. 4. Use an adapter charger. Electric vehicle batteries have a certain degree of matching, different batteries, chargers have different matching degrees, mixed use, it is easy to cause short circuit or insufficient charging.

5. Do not store at loss of electricity. The longer the idle time, the more serious the damage to the battery. When the battery is not in use, it should be charged once a month, which can extend the life of the battery.

Your problem is very complicated, under normal circumstances, the reason why the handlebar shakes is mostly because of the loose bearing under the handlebar, or the car frame is not right, the front and rear wheels of the car are caused by the scoop, you can support the car ladder and then let the car idle at full speed, observe whether the rear wheel has the phenomenon of scooping, if the wheels are not scooping, it should be the front handlebar loose or the big frame is not right, if the above reasons are excluded, it is the design and quality of the car itself.

In my experience, it should be the handle faucet that is loose

1. Why can't the battery be charged or undercharged?

Possible causes of failure:1The fuse in the battery compartment is burned out2Loose connectors 3The charger is back to faulty A4No current power supply, the charger does not light up5The battery is aging and its life is at the end of its life.

Troubleshooting methods:1Replace the fuse2Fasten the connector 3Replace the charger 4Check the mains 5Replace the battery.

2. Why is the power turned on, the other is normal, and the motor is not working?

Possible causes of failure:1The speed regulating handle, motor, and controller connectors are loose or fall off2The brake lever or foot brake plate is not returned, and it is in the state of brake power-off3The controller is damaged.

Troubleshooting methods:1Detect or replace the on-connector2Check whether the brake lever or foot brake pedal is back in place, and replace it if damaged3Replace the controller.

There is a bad battery in the battery group, at least one, when there is a battery damaged, it is normal to put a voltage instantly, but the broken battery will not be discharged again immediately, resulting in the voltage of the entire battery group is not enough, and you say that it is not full overnight, and the probability of a bad battery is relatively large.

The battery is not charged! The shaking is caused by the drop in battery voltage and the protection of the electric vehicle controller. Please replace the battery!

First of all, check if your electricity is really rushing in... It's possible that your own battery didn't rush in... There is no electricity...

Then check your belt... See if the belt is slippery.

Finally, look at your gears...

It is recommended to go to a regular repair shop for inspection.

Possible reasons: 1. The influence of high temperature on the motor. Since the working principle of the motor is that electrical energy is converted into mechanical energy, it generates a lot of heat in its work. In addition, the traditional motor heat dissipation method is air cooling, if in a long-term high temperature environment.

, then the motor will not have time to dissipate heat, and the electric vehicle will shake.

2. The influence of water inlet on the motor. If there is water ingress into the motor, then the magnet.

The sheet is prone to oxidation and rust, and the most direct result of this is that the magnetic properties of the magnetic sheet are reduced, so the electric vehicle will shake.

Solution: 1. When parking the electric vehicle, it is best to park the car in the awning to prevent the motor from being exposed to direct sunlight for a long time; Do not overload to prevent the power from being consumed too quickly and generating a lot of heat.

2. Avoid wading in the water of the electric vehicle to prevent the motor from directly entering the water and rusting; When you return from riding in rainy days, you must wipe the motor in time to prevent residual moisture from entering the motor; Do not place the electric vehicle in a humid environment to prevent moisture from entering the motor.

1. The front bearing is faulty and causes shaking;

The constant rotation of the bearing has long been frictional.

It will increase, such as rust in the water, the bearing steel ball is out of circle, and the gap is large, which will lead to bearing damage, once the steel ball is "off the track", the front wheel will lose its balance next to the town, and the left and right shaking will be great, difficult to control, please replace the bearing in time.

2. The tire deformation rib is broken and the bag is shaken;

The tires in the market are uneven, the rubber and tire tendons are unqualified, and it is easy to break the tendons.

Until the tire grows a "tumor", the tire is not round and jumping, and the risk factor of a puncture is large, please replace it in time!

3. The front rim is deformed and the front handle shakes;

Some front rings are not very good quality, and the anti-start torque is weak, which can easily lead to deformation and swing when encountering bumpy roads or touching the ring! The circle loses its circle and deviates from the trajectory of the circle.

4. Problems with the shock absorption system and frame cause the front handlebar to shake randomly.

The shock absorption on both sides is reduced to the uneven offset of force reduction, and the single shock absorption oil seal.

The oil leakage shock absorption pressure drops, the front shock absorption force is unevenly distributed, and the riding is shaky!

The electric car is a bit shaky, or even not walking, first consider whether the motor or controller is faulty. You can try to find out the controller of the electric vehicle first: prop up the rear wheel, turn off the power supply, detach the controller from the vehicle, unplug the power cord connected to the controller, the controller and the motor, connect the power cord with the motor wire, turn on the power switch, and the motor is running normally, indicating that the controller is damaged.

Another way to judge is to unplug the phase cable connecting the controller to the motor.

The phase lines are yellow, green and blue, and the tires are still very heavy and difficult to push when turned by hand, indicating that it is not a problem with the control pin, it may be that the motor hall is damaged, the motor magnet falls off, and the motor coil is burned.

Judge whether the motor hall is good or bad:

Find the three main lines of the motor, which are green, blue, yellow, and short.

Green-yellow, blue-green line, there is resistance to rotating the rear wheel, the motor is normal, otherwise there is a problem, further testing is required, find five thin wires of the motor hall, and use a multimeter.

Detect the voltage of the black line and the yellow, green and blue lines in these five, and rotate the rear wheel at the same time, and the voltage changes between 0 5V There is no problem, and the signal does not change that the hall is damaged.

Of course, the electric car shakes and shakes, and the bucket wheel may be the brake handle, the power switch is abnormal, the contact is poor, and the electric vehicle is in an intermittent power supply state. Or the fault of the handlebar line, the poor contact causes the electric vehicle throttle to be in an intermittent state, these need to be tested, it is recommended to find a professional master for maintenance.