Entering mid-autumn, and a major cooling has occurred across the country. Many electric car owners generally feel that the battery is clearly full of charge, but it is not durable.
When encountering this kind of problem, people are often at a loss and often put all the blame on the battery or charging pile. So what is the truth about the fact that the range of electric vehicles is getting smaller? What's the problem?
electric cars always don't run far? It turns out that these factors are causing the blame!
. Motor problems
For example, if the motor demagnetization, the motor and controller do not match very well, and the two cannot effectively cooperate, which will reduce the energy conversion rate.
If an electric vehicle is often overloaded and speeded, the motor will demagnetize or age as the usage time increases, which will affect the energy conversion rate of the motor and the torque and range of the motor. At the same time, it will also affect the battery and affect the service life.
It is recommended that everyone should carry out regular maintenance. Car owners should not replace the motor or controller by themselves, and do not buy low-end and cheap accessories. They must replace the original accessories in a professional repair shop.
. Controller issues
The controller is one of the core components and is the component that controls the rotation of the motor. The microelectronics part of the electric vehicle controller may be very small, mainly due to the large-power components such as power tubes, capacitors, , etc.
The power tube is damaged, commonly known as the explosive tube, which will cause the electric vehicle to be unable to drive, and the instrument power light will flash or not light up. electric vehicle motor will have resistance and will be difficult to implement (do not forcefully push and pull the electric vehicle at this time, as it will burn the motor).
, tire pressure problem
The most suitable tire pressure range is marked on tires produced by regular manufacturers. For electric vehicles with qualified quality, it is most reasonable to maintain the tire pressure between 310 and 380kpa.
Electric vehicles will inevitably bring greater friction resistance to the electric vehicle motor when the tire pressure is insufficient. During the same driving distance, the air pressure is low and the tires are under a large area of force, which will consume more power and cannot run far.
. Braking problem
. When riding, if the wheels do not return to position in time after the brakes, the wheels will run with the brakes, which wastes power. Some users have tightened their brakes until they do not rebound, which will generate rolling resistance, which will consume a lot of electricity.
In addition, many users do not pay attention to pulling handbrake to run forward, which increases the power consumption. Remember to let go of the handbrake when driving.
The brakes of electric vehicles, whether they are hub brakes or disc brakes, will encounter situations that are too tight or too loose, resulting in difficulty in moving forward or ineffective brakes of electric vehicles.
. Bearing problems
Due to water inlet or wear during long-term use, the resistance is increased and the power consumption rate increases, which will cause electric vehicles to be weak.
In this case, the bearing should be replaced, or lubricating oil should be added.
, battery problem
For battery-induced electric vehicle range problems, single battery lags behind the majority. A single battery will affect the voltage of the entire battery. If one of the four battery packs fails or falls behind, it will affect the entire battery pack.
Inappropriate maintenance and long service life of the battery will cause the battery to attenuate, thereby affecting performance. For example, when the load is too high, the whole vehicle parts are forced to operate, the discharge current is large, and there is no current limit protection, which causes the battery to be discharged forcibly, causing severe damage to the internal energy of the battery and damage the battery.
7. Charger is very critical.
The output voltage of the charger is low, which will make the battery unfulfilled. Taking the 48V electric vehicle battery as an example, the full point voltage is 58.8±0.2V.
If the maximum load voltage of the charger is lower than this value, the charger cannot fully charge the electric vehicle battery. If the battery power is not satisfied, it will naturally affect the range of the electric vehicle.
8. Line problems
The line problems are soft faults. There is nothing wrong with each component, but a resistor is generated during the connection. If there is a resistor, there is a voltage division, and the larger the current, the greater the voltage division.
New battery will turn and the light will drop. This problem is very common. The reason why you can't run far is it.
Pay more attention to standardized riding in daily life
Can extend the battery life
The most important thing is to develop good charging habits
Avoid pulling wires privately to charge
causes the battery to overcharge
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