Bitcar Original Everyone knows that electric vehicles are afraid of cold, and low temperatures will shorten their battery life. But in fact, electric vehicles are more afraid of heat, because high temperatures affect the safety of the battery. Therefore, before new cars are put on the market, in addition to extreme cold tests, they will also undergo extreme heat tests. This test is usually carried out in the Turpan area known as the "Fire Continent", which is where the Flame Mountains in Journey to the West are located.
As a famous dry-hot area in the country, Turpan is the first choice for hot zone testing by many domestic automobile companies and scientific research institutes. The annual average temperature is higher than 35℃ for 99 days and above 40℃ for 28 days. In summer, the surface temperature is even It can exceed 50℃ and is a natural "refining" car park. This time we went to GM's pan-subtropical thermal zone test base in Turpan to experience how the Buick E4 and E5 will perform under high temperatures.
What are the hot zone tests?
The well-known test items for electric vehicles generally include blisters, fires, collisions, etc., but there are many test items that you don’t know about, such as the vehicle summer durability test (extreme heat test), including air conditioning and powertrain thermal effects , steering system, chassis suspension reliability test and other projects.
It is reported that the vehicle was fully loaded (1 driver + 4 passengers + 70 kg of luggage in the trunk) for more than 60% of the time during the summer test, and was executed on gravel roads and curbs. The risk of tire blowouts and bulges was fully considered. Verify tire durability performance. After completing the summer test, the vehicle will continue to perform comprehensive endurance testing, powertrain enhanced durability testing and winter testing at other professional testing sites equivalent to 15 years or 240,000 kilometers of user experience. After the test is completed, the vehicle will be dismantled and retested on the bench to continue optimizing the design and finally find the optimal solution.
Can the Buick E5 conquer the Flame Mountain?
The main experience this timeThe vehicle is a Buick E5 Aviva four-wheel drive version, which is the top model, with a guide price of 278,900 yuan. For the experience of the Buick E4, you can refer to the Buick E5. Since the media test drive will not be as strict as the experimental test, it is mainly based on experience and understanding, so let me briefly talk about the performance of the Buick E5 in such an extreme environment.
This time we experienced test links such as exposure to the sun, urban serpentine roads, gravel roads, dusty roads, and high-loop roads. None of the test-drive vehicles had any problems.
Exposure scenes are a key part of the summer test. After extreme exposure, engineers must first confirm the electrical performance of the car without turning on the air conditioner, and conduct a series of inspections such as odor and high temperature noise in the car. After completion, continue to expose to the sun, and then check the idling air conditioner refrigeration, driving air conditioner refrigeration, abnormal noise of the air conditioner, etc. after exposure.
This project also impressed me the most, because in such extremely hot weather, it takes a long time to exchange heat close to the air conditioner to cool down the temperature inside the car. However, judging from the test data that day, the Buick E5 lowered the temperature inside the car by more than 20 degrees in just 15 minutes, and the cooling effect is more ideal than most models.
The speed of the vehicle on the dusty road will remain at about 70km/h. Coupled with the windy weather, the raised sand and dust basically cover the entire car body, and the car behind is almost completely out of sight.
The gravel road test is very demanding on vehicle performance. Especially when electric vehicles are heavier, they have higher tire load requirements. If you are not careful, it is easy to have tire blowouts, loss of control, and roll-up of stones that can cause damage to the chassis machinery. Components may cause damage or other hazardous conditions.
Finally, there is the high-loop road, where the maximum speed limit is 160km/h. We experienced it for three consecutive laps. In this high-temperature and high-speed environment, the battery and motor generate a lot of heat, but the power did not decrease throughout the experience. The output response is consistent.
In fact, Buick E5 and Buick E4 have conducted summer durability tests simultaneously in Turpan and Hainan for two consecutive years, with actual test mileage reaching more than 150,000 kilometers. This is the car-making attitude of traditional major automobile manufacturers. Each new car will undergo rigorous testing and verification before being put into the market. There is basically no need to worry about quality assurance.
Excellent highway performance, "experienced drivers" of fuel vehicles have zero threshold to switch
In fact, what makes me most satisfied with the Buick E5 is its performance in regular car use scenarios. In this test drive, we experienced a long-distance road test drive of nearly 300 kilometers from Urumqi to Turpan and back. Feedback on the overall mechanical quality of the Buick E5 What I feel is that this is a car with "fuel"Tasty" electric car.
The Buick E5 Evia version we tested is equipped with front and rear dual motors, with a total system power of 211kW and a total torque of 465N·m. The official acceleration time of the vehicle from 0-100km/h is 7.7 seconds.
To be honest, for me who is used to driving fuel vehicles, the power adjustment of this car is very suitable for me. It is not as violent as some new forces’ electric vehicles, and focuses more on comfort, whether it is Starting from a standstill or smoothly accelerating midway, power output will have a relatively linear growth process.
In fact, slamming the switch at high speeds consumes a lot of power. Buick E5 hopes that everyone can drive in a smooth and environmentally friendly way. IOur energy consumption when driving on most 100km/h highway conditions is only 12kWh/100km. With three people sitting in the car, the battery life is particularly solid.
It is worth mentioning that this car is also very quiet. At a speed of 100km/h, there is basically only slight wind noise in the car, and tire noise is basically inaudible. The NVH performance is comparable to that of a car worth more than 300,000 yuan. traditional luxury fuel vehicle.
Finally, in terms of suspension and steering, the Buick E5 also shows its due strength. The steering is relatively light and suitable for daily driving. The suspension is also good at resolving minor bumps on the road, and the comfortable and soft seats create a very comfortable driving experience.
New car design review
Buick Electra E5 is based on Buick’s earlier Electra-X concept car, and is blessed by the pure design concept of PURE Design. The overall appearance looks quite fashionable, but it is not as ostentatious as some new car-making forces. It's just right in my opinion.
Some of the fashionable designs of current new energy vehicles are available, such as closed grilles with a water ripple effect, sharp LED daytime running lights, split longitudinal headlights, hidden door handles and through-type taillights. The entire vehicle is full of new era technology and trendiness.
In terms of size, the Buick E5 has a body length, width and height of 4892mm × 1905mm × 1684mm, and a wheelbase of 2954mm. It is a standard medium-to-large SUV. But its size is more comprehensive, wider than the Volkswagen ID.6 and longer than the Tesla Model Y, so it looks larger.
In terms of interior, Buick E5 is equipped with Buick's new generation VCS smart cockpit. The car uses an EYEMAX 30-inch integrated curved 6k screen, which reaches the first level in its class in size and is also the only high-definition curved screen in its class. screen.
In addition, the middle console also adopts a hollow suspension design, and cooperates with the pocket-type shift mechanism, which reflects the sense of technology and fashion that electric vehicles should have.
In terms of in-car configuration, this car is equipped with Qualcomm 8155 chip, which has good performance in terms of smoothness of display and operation, as well as the accuracy and convenience of recognizing voice commands.
In terms of safety, it is also equipped with a DMS driver monitoring system, which uses an infrared sensor placed in the center of the steering wheel to monitor whether the driver is distracted while driving, which also adds a lot to driving safety.
The Aivia version of the HOD steering wheel also uses a capacitive induction type, which can detect whether the driver is holding the steering wheel without applying torque, which can prevent users from using mineral water bottles to trick the system into turning on assisted driving, which is unsafe. driving behavior.
As for the seats and space, we have conducted a detailed actual test evaluation of this car before. As an SUV with a wheelbase of more than 2.9 meters, there is really no need to worry about the seating space, plus the wide seats , riding comfort is also guaranteed.
Editor's comment: I had a hunch when the Buick E5 was launched that it would have a good sales performance. Facts have also proved that this car has ranked first in the sales of medium and large pure electric SUVs for two consecutive months. This is already a very good result among models of the same class. In fact, Buick's sincerity can be seen from its configuration performance and pricing when it was announced. This is the only mid-to-large pure electric SUV joint venture worth 200,000 yuan. With the delivery of new cars and test drives by car owners, everyone has given good feedback. I believe that this hot zone test can also give everyone a deeper understanding of this car. Traditional joint venture fuel brands are facing the transformation of the electrification era. We can still believe in his sincerity and determination. If you are still considering a pure electric SUV worth 200,000-250,000 yuan, you might as well take a look at this car.
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