Nowadays, the tide of new energy is coming, and the speed of electric vehicle popularization is gradually accelerating. As we all know, as the battery of electric vehicle power source, the best working temperature is above zero, but in winter, the temperature in the northern region of China is generally below zero, so the performance of the battery will be greatly reduced, and various manufacturers in order to cope with this situation, have also sacrificed black technology, such as the new single dolphin of the BYD Ocean series that we test drove today.
Black technology plus
We experience this BYD Dolphin today, the first model of the Ocean series, and it was also born on the bydIR pure electric e-platform 3.0 framework. After entering 3.0, the e-platform has an eight-in-one electric powertrain in technology, which is also the world's first new technology.
In terms of design, the dolphin itself is based on low wind resistance as the primary factor, and the simple front face and flat chassis make its wind resistance coefficient lower. Tires, brake calipers, and wheel hubs are also low-drag designs, and the IPB power recovery system jointly developed with Bosch is also more efficient.
At present, the common way to deal with the cold is the heat pump system, and the dolphin has also joined a deeply integrated thermal management system, which carries a heat pump with a minimum operating temperature of minus 30 degrees, which can work normally in most areas of the north.
Dolphin, equipped with blade battery, also adopts the first power battery direct cooling and direct heating technology, which directly heats the battery pack through refrigerant, thereby improving the overall thermal efficiency and allowing the battery to enter the optimal working temperature faster, thereby reducing cold loss and thus improving endurance.
Not afraid of the performance of winter
The city we test drive today is located in the northeast of Shenyang City, the temperature at the time of the test drive is below zero degrees, our test drive this time is also a simulation of the daily use environment, so open the ECO mode, while the power recovery is adjusted to a larger, in addition to turning on the air conditioning, and the temperature is adjusted to 24 degrees.
First of all, after starting out, enter the city congestion road conditions, this road condition is actually the best road condition for electric vehicles, because it does not show a peak fuel consumption at the beginning of the fuel car, but can drive the vehicle with the lowest energy consumption, so driving in the low-speed road conditions of the city is the real watershed between electric vehicles and fuel vehicles.
After entering the urban expressway and high-speed road conditions, the dolphin power response based on e platform 3.0 is not weak at all, and the low temperature environment has not affected its power performance, of course, for electric vehicles, the power consumption under high-speed road conditions must be higher than that of urban low-speed road conditions.
Test roads 107 km per lap, after completing the first lap, we have 70% of the remaining power and a range of 286 km; According to the same path, we continued to run 160 kilometers, with an average energy consumption of 11.5 kWh/100 kilometers, a cruising range of 92 kilometers, and a remaining power of 23%.
In the end, the Dolphin with a range of 405 kilometers of NEDC, after being measured under this test, the maintenance rate in the winter environment reached 85% of the endurance performance, which has been greatly improved for the electric vehicle spell that directly halved the endurance in winter.
summary
Nowadays, the popularity of new energy vehicles has shown a situation of more south and less north, and the reason is that after the north enters the winter, the endurance performance of new energy vehicles is insufficient. Of course, science and technology are constantly advancing, before the endurance of the waist chopper, now equipped with e platform 3.0 dolphins can already do more than 80%, I believe that in the future, this data will continue to improve, at that time, the northern region will usher in a wider range of new energy vehicles popularity.