How to see the performance of an electric car?

At present, the electric vehicles in the market are of good quality and good sales performance

Answer: Wuxi has: Beijing Xinri Electric Vehicle Manufacturing, Wuxi Shengbao Electric Vehicle Manufacturing, Wuxi Dongshi Yadea Technology, Wuxi Tianjue Locomotive Technology, Jiangsu Edson Locomotive Manufacturing, BYD Electric Vehicle Manufacturing, Jiangsu New Century Locomotive Technology, Wuxi Epson Electric Vehicle;

Changzhou has: Changzhou Oss electric vehicle, Changzhou green energy electric vehicle development, Changzhou Jade Bird electric vehicle manufacturing Century Bird, Changzhou Hongdu electric vehicle, Changzhou Supai riding electric vehicle;

Tianjin has: Tianjin Flying Pigeon Wudi Electric Vehicle, Tianjin Taifeng Bird Electric Vehicle, Tianjin Elida Electric Vehicle, Tianjin Wave Electric Vehicle Co., Ltd., Tianjin Celebrity Car Industry;

Others are: Shanghai Lingzhitong Electric Vehicle **** True Love, Shanghai New Continent Electric Vehicle **** Paile, Shanghai Red Rabbit Horse.

Electric vehicles, Nanjing Continental Pigeon High-tech Co., Ltd., Suzhou Antelope Electric Vehicle, Shandong Yingkelai Electric Vehicle, etc.

There are these points for reference in the purchase of electric vehicles:

1. The frame, simple type to see whether the welding is uniform, from the front and rear to see whether the front and rear wheels are in the same line, whether the body is crooked; The pedal-type luxury model must choose a widened and heavy-duty flat fork model.

2. Baking paint depends on the fullness and brightness of the paint.

3. Look at the brand awareness of the car. The key components of manufacturers with certain power have their own trademarks, such as: instrument, handlebar, brake handle, motor, guard bar, pedal pad, seat cushion, tail box, etc.

4. Key configurations. Controllers: Tianjin Songzheng Electronics, Changzhou Yiertong Electronics, Wuxi Jinghui Electronics, Shanghai Ananda Drive Technology; The batteries are mainly Tianneng and Chaowei.

The most important thing is that, if you master it, you won't make a mistake!

The wholesale price of simple electric vehicles without batteries is 1,200 to 1,300 yuan, and the wholesale price of pedal electric vehicles is 1,500 to 1,800 yuan.

The 48V12AH battery with simple type can run about 45 kilometers, and with the scooter can travel 35 kilometers;

The 48v20ah with scooter can travel 70 to 90 km.

In the market, you have to add 100 yuan transportation fees plus 300 sales profits, and you can add it yourself if you want a car!

The maximum speed of the car is generally 28 kilometers and 35 kilometers, which should not be easily believed by the merchants.

Since the motor is sealed, if you want to fundamentally judge its quality, you need to use certain external tools, such as a swastika. In addition to the help of professional tools, you can also judge from the appearance of the material and general performance. The above methods can be simply boiled down to:

One look, two listens, three touches and four tests.

1. Take a look: look at the shell.

Motors with good outer plating generally have a brighter appearance, while refurbished machines are gray and dull. Then you can look at the motor trademark, generally larger manufacturers value the development of the brand will be marked, which is a manifestation of brand quality. Finally, you can see whether the motor has 3C certification, and the motor that meets the industry specifications will be more secure.

2. Second touch: touch the temperature.

After the motor is stopped, consumers can use their hands to sense the temperature of the motor, the lower the temperature, the better the heat dissipation of the motor, and the better the performance.

3. Three listening: listen to the motivation.

During the test run, the consumer can check whether the power is sufficient when the load starts, and the power that is not abundant is likely to cut corners on the motor coil.

4. Four detection: detection resistance.

1) Detect the quality of the AC three-phase motor, 500V shake the meter, shake the insulation resistance of the line on the three binding posts to the motor shell, and it means that there is no short circuit to the ground above Europe.

2) Multimeter measurement: measure the resistance between the three phases of A, B and C, whether it is equal. The greater the difference in values, the worse the performance of the motor.

And the greater the power of the motor, the smaller the resistance. However, it cannot be 0 ohms for all three phases, unless it is a particularly large motor above 50kw, but this current electric vehicle application can be said to be none.

1. According to my actual needs and preferences, choose the appropriate specifications, styles and colors.

2. Select the appearance quality of the vehicle first, mainly to see whether the trademark and decal are in good condition, and whether the surface quality of paint parts, electroplating parts, plastic parts and aluminum alloy parts is satisfactory. 3. Check the quality of vehicle assembly, it should be: a All kinds of screws are fastened in place and are not loose.

b The handlebar, wheels, chain, crank, and pedal should run flexibly, and the rim should be round, and the circular runout should be small. c Handlebars, saddles, clay boards, hangers, and brackets should be installed in a straight or symmetrical manner, without obvious deviation. d There should be no friction between moving parts (such as chains, cranks, wheels, etc.) and moving parts (such as chain covers, mud plates, etc.).

3. The electric door key and battery lock should be tried out, which is safe and reliable and convenient to use. Electric door locks, battery locks, and toolbox locks should be most convenient with one key.

4. Open the electric door, turn the gear shifter handle, check the stepless speed change and braking (brake) power-off and braking effect, and check whether the motor runs smoothly and whether the sound is normal.

The most important thing is the battery! ok？The most important thing is to be a vegetarian motor? The most important thing is the controller.

The main thing is to look at the battery and motor, and the brake is not too important.

How to see the quality of the battery car battery There are three ways to judge the quality of the battery car battery:

1. Observe the outer packaging to determine whether there are traces of grinding and scratching

When the user buys the battery, the first thing to see is whether the outer packaging of the electric vehicle battery is damaged or there are traces of dismantling, and then open the package to see the appearance of the battery, see if there are traces of abrasion and scratches on the surface of the appearance, and then see whether there are rusts at the metal terminals of the positive and negative electrodes of the battery, and finally, see if the battery has an anti-counterfeiting logo. If one of these items is not satisfied, it is likely to be a refurbished battery, or a battery of poor quality.

2. Test the discharge of the battery with a detector

The two most important technical indicators of lead-acid batteries for electric vehicles are energy storage and internal resistance. The storage capacity should be tested by the instrument for 10A current discharge, and the discharge time should be judged according to the discharge time, and the discharge time of the 20Ah new battery should be greater than 120 minutes before it can leave the factory. The internal resistance should be tested by the internal resistance meter, and when the voltage is in, the internal resistance is about 10 milliohms, which is a good battery.

3. Accelerate the test and observe the pointer falling

Replace the new battery first, then accelerate the drive, and if the pointer drops less than half a bar during the acceleration process, it is a new battery. And if the pointer drops by more than one or even two, it is likely to be a refurbished battery. And when the pointer drops more than three bars, the battery is an inferior battery that is close to being scrapped.

How to see how much electricity an electric car still has.

On the dashboard of the electric vehicle, you can see the remaining power of the electric vehicle. Electric vehicles are a relatively common means of transportation, and they are also a relatively simple means of transportation. The main components of an electric vehicle include a frame, an electric motor, a battery, and an electronic control system.

The electronic control system is generally fixed under the back seat, and the electronic control system is used to control the whole car circuit, if there is no electronic control system, then the electric vehicle cannot operate normally.

The electric motor is the first of the electric vehicle power, and the electric motor is responsible for driving the electric vehicle forward.

The battery is a part of an electric vehicle that is used to store electrical energy, and the battery can supply power to all the electronic devices in the electric vehicle.

The battery is also a wearing part that needs to be replaced regularly.

As the number of charging and discharging increases, the performance of the battery will continue to decrease, so the battery needs to be replaced regularly.

When charging or discharging, the ions in the battery move in the electrolyte, and some ions chemically react with the electrolyte as they move in the electrolyte.

As the number of charges and discharges increases, the number of ions in the battery will also decrease, so the performance of the battery will decrease.

If you can maintain the correct driving habits, it can effectively extend the service life of the battery.

There are three ways to judge the quality of a battery car battery:

1.Observe the outer packaging to determine if there are any abrasion marks and scratches;

When users buy batteries, they should first see whether the outer packaging of the electric vehicle battery is damaged or have traces of disassembly, then open the package to see the appearance of the battery, see if there are traces of wear and scratches on the outer surface, and then see whether the metal terminals of the positive and negative electrodes of the battery are rusty, and finally see whether the battery has anti-counterfeiting marks. If one of them is not satisfied, it is most likely a refurbished battery or a poor quality battery.

2.Test the discharge of the battery with a detector:

The two most important technical indicators of lead-acid batteries for electric vehicles are storage capacity and internal resistance. The storage capacity should be tested by the instrument for 10 years of current discharge. According to the parallel field discharge time, the new battery of 20Ah can be discharged for more than 120 minutes before leaving the factory.

The internal resistance should be tested by an internal resistance meter. When the voltage is and the internal resistance is about 10 mOhm, it is a good battery.

3.Speed up the test and observe the position of the pointer:

Replace the battery with a new one before accelerating. During acceleration, if the pointer drops less than half a day, it is a new battery. If the pointer drops more than one or even two squares, it is most likely a refurbished battery.

When the pointer drops more than three divisions, this battery is of poor quality and is close to obsolescence.

There are three ways to judge whether the battery of a battery is good or bad:

1.Observe the outer packaging to determine if there are traces of grinding and scratching;

When users buy batteries, they should first look at whether the outer packaging of the electric vehicle battery is damaged or have traces of disassembly, then open the package to see the appearance of the battery, see if there are traces of wear and scratches on the outer surface, and then see whether the positive and negative metal terminals of the battery are rusty, and finally see whether the battery has anti-counterfeiting marks. If one of them is not satisfied, it is most likely a refurbished battery or a battery of poor quality.

2.Use a detector to test the discharge of the battery

The two most important technical concepts and standards of lead-acid batteries for electric vehicles are energy storage capacity and internal resistance. The storage capacity should be tested by the instrument for 10 years of current discharge. According to the discharge time, a new 20ah battery can be discharged for more than 120 minutes before leaving the factory.

The internal resistance should be tested with an internal resistance meter. When the voltage is and the internal resistance is about 10 mOhm, it is a good battery.

3.Speed up the test and observe the position of the pointer:

Replace the battery with a new one before accelerating. During acceleration, if the pointer drops less than half a bar, it's a new battery. And if the pointer drops more than one or even two notches, it is likely to be a refurbished battery.

When the pointer drops more than three bars, the battery is an inferior battery that is close to obsolescence.

Millions of car purchase subsidies.