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What is the gap between Tesla and BYD? Veteran driver: You will understand when you get on the highway

In the field of new energy vehicles, BYD and Tesla are well-deserved two giants. These two behemoths, who will win? Experienced people have given a standard for comparison, that is, in winter, when you go to a high speed last time, you can see who is better.

By 庆勋 张Published 6 months ago 4 min read

1. Self-developed battery, obtained in an overwhelming manner

From the very beginning, BYD started by producing batteries. In 2003, it relied on battery technology to become the third largest car company in the world. At present, BYD is using a completely self-developed "blade" battery in the world, and its safety performance has been greatly improved compared with the ternary lithium battery.

Tesla has changed its strategy in the past two years and chose Ningde Times to cooperate with LG and other companies to provide a new power for their new cars. However, this kind of blind purchase is obviously not as good as domestic power. Only by relying on our own research and development can we grasp the rhythm of development, produce better products, and make the company stronger.

The performance of the battery has a great influence on the driving range of the vehicle. From a numerical point of view, Tesla's cruising range is longer than that of BYD, but in reality, is this the case? Through relevant evaluation and comparison, it can be seen that under the same road conditions and under the same usage conditions, the actual driving distance of the car will be affected to a certain extent.

The temperature in winter is -2-5°C, the air conditioner is fully turned on, and the speed is maintained at 120 km/h. The actual mileage of Tesla model 3 is between 6-6.5%, and the actual mileage of BYD Han is between 7-7.5%. According to the discount of real mileage, BYD's actual mileage is higher than that of Tesla.

BYD's new car not only makes it safer and has a longer cruising range, but also further improves its charging performance. Tesla uses a high-current fast charging method, while BYD uses a high-voltage fast charging method. Although both methods have their own advantages and disadvantages, in terms of charging speed, BYD is still faster than Tesla.

From the perspectives of safety, battery life, charging time, etc., BYD's battery life can be described as "hanging". Compared with Tesla's batteries that can only be bought from abroad, BYD has developed it by itself, which can not only better meet the needs of cars, but also better charge and recharge.

Second, the motor installation method, there are high and low

The BYD sedan adopts the self-developed PMSM, which is smaller and more flexible under the same power and torque conditions. The motor is small and smart, which can reserve more space for the battery, which is also very helpful in extending the use time.

What Tesla chose is an AC induction motor produced by Taiwan Futian Company, which is much more powerful than a permanent magnet motor. However, the treatment of Tesla in China is different in terms of power system, and it still uses a permanent magnet synchronous motor. This is probably the main reason why Tesla is not selling well in the Chinese market.

The reason why PMSM has been criticized by people is largely because it is very easy to demagnetize when the temperature is high during the operation of the car. Using BYD's blade battery temperature control system solves the problem of high temperature demagnetization to some extent.

The engine is Tesla's. BYD can take advantage of this to improve the engine. Because the status of the two companies is different, each has its own advantages in engine technology. Among the models of the same price, BYD can have an advantage; but Tesla's power system is the best choice, because of its power system, few people can compete with it.

3. Spontaneous electronic control, advantages and disadvantages

If Tesla wants to become a leader in the new energy vehicle industry, procurement alone is not enough. Being able to get to this point is inseparable from the BMS electronic control technology developed by Tesla itself.

This technology allows Tesla to accurately detect the parameters of each battery and make corresponding adjustments to keep it in the best condition.

Based on the self-developed electronic platform, BYD has focused on strengthening the integration of components in its continuously updated platform system. The advantage of integration is that it can increase the driving distance of the car and reduce losses.

It can be seen from the electronic control system that BYD's e-platform pays more attention to the integration of batteries and pursues longer distances. Tesla's electronic control system pays attention to excellence and excellence. With the same distance, Tesla can bring people a better driving experience.


Tesla's biggest advantage lies in its electronic control and its assisted driving technology, which are the most advanced technologies in the world. BYD is currently increasing its efforts to improve intelligence, but it must also be admitted that the obstacles caused by the late start are great. If BYD wants to keep pace with Tesla in the system, it is still far away.

In the three technologies of battery, motor, and electronic control, both BYD and Tesla have their own advantages. However, in the eyes of consumers, their price is a problem that cannot be ignored. For example, Tesla Model3, or BYD Han, do you know who is more cost-effective?


About the Creator

庆勋 张

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