-What is the relationship between battery capacity and driving range of new energy pure electric vehicles?

What is the relationship between battery capacity and driving range of new energy pure electric vehicles?
author:enerbyte source:本站 click578 Release date: 2022-11-23 09:15:54
abstract:
The battery capacity of new energy pure electric vehicles is usually expressed in kilowatt hours (kW. h). The larger the capacity of the battery pack, the stronger the energy storage capacity of the car and the larger the range. However, the increase of battery pack is bound to increase the vehicle...

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The battery capacity of new energy pure electric vehicles is usually expressed in kilowatt hours (kW. h). The larger the capacity of the battery pack, the stronger the energy storage capacity of the car and the larger the range. However, the increase of battery pack is bound to increase the vehicle mass, affect the vehicle performance and greatly increase the production cost. Therefore, finding a balance between the endurance mileage, the number of battery packs and the production cost has always been a major issue for the development of electric vehicles.

The driving range refers to the maximum driving range after the vehicle is fully charged. Now let's compare the battery capacity of several vehicles with the actual data of the driving range.

What is the concept of unit power consumption? In fact, the battery capacity is divided by the endurance mileage. In short, it is how many kilometers per kilowatt hour. For example, the point power consumption of the Great Wall C30EV is 7.5, which means that the Great Wall C30EV can travel 7.5 kilometers per kilowatt hour. The range of BYD e6 and Tesla ModelS seems to be awesome, but their unit power consumption is low, which clearly reflects the characteristics of "relying on stacked batteries to improve the range". Therefore, when choosing a car, you should choose one with a high unit power consumption value, because it saves electricity!

Of course, the value of endurance mileage can only be used for reference, and can't be taken seriously in actual driving. Because factors such as driving style, cold and warm weather, and the number of electric devices that are turned on can affect the driving distance of the vehicle. The driving style is relatively gentle. It is very helpful to increase the driving range by using as few electric equipment as possible, which is also applicable to traditional fuel vehicles. However, the influence of too cold and overheated weather on the range of electric vehicles is far greater than that of traditional fuel vehicles. Research and tests show that under hot weather conditions, the range of pure electric vehicles will decrease by 35% compared with cool weather; In cold weather conditions, it dropped by 57%, less than half of the normal mileage. Therefore, if you fully believe in the mileage value during driving, I'm sorry to "let you know"!

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