Super Copy of Great Power Technology

There are many versions of Ruida MINIEV cars, including a basic version with a range of 220 kilometers, an improved version with a range of 300 kilometers with fast charging, and a top version with a range of 400 kilometers with fast charging and enhanced power. Each of these three MINIEV cars has a test car that participated in this acceleration test. Only the top version MINIEV can guarantee acceleration to 15 kilometers per hour in 100 seconds. The basic version and the improved version can accelerate from 20 kilometers per hour in 100 seconds. Seconds or more, and even in individual cases, the speed of 2.1 km/h is never reached. It can be seen from this that the power of this MINIEV car is so impressive, and it is simply not a product of the same dimension as the Roadster sports car that accelerates to 20 kilometers in seconds. Of course, the price gap between the two is also very huge, at least times more. The target customers are also completely different, and it is difficult to determine how the sales will be after it is launched.

After the straight-line acceleration tests of the five test vehicles were completed, Qiao Ruida, who was talking about wireless, appeared in the live broadcast again and said:
"After the straight-line acceleration test, the second test item is the braking distance test. The specific test process is to accelerate the car to 100 kilometers per hour, then step on the brake, and measure the distance from the car to the time when the car brakes to a complete stop. It is the final braking distance, also called the braking distance. Correctly grasping the braking distance of a car is very important for ensuring driving safety. By testing the braking distance, the driver can understand the braking of the vehicle at different speeds and different road conditions. performance, so as to judge the braking timing more accurately in actual driving and ensure driving safety. During the braking process, there will be severe friction between the calipers and the brake pads, which will release a lot of heat. When the brake pads overheat, the braking performance will decrease and the braking distance will increase significantly. In order to ensure the accuracy of the test data, we decided to conduct ten consecutive braking tests on the test vehicle and record the braking distance each time. The first one to be tested is still the low-end version of the Roadster sports car. Its official nominal braking distance is 33 meters. Under the current ultra-low temperature of minus degrees, the braking distance must be attenuated. So the specific data is How much, let’s wait and see.”

After the oral broadcast ended, the camera turned, and a low-end Roadster sports car appeared on the live broadcast screen, starting to accelerate from the starting point of the runway. In the lower right corner of the live broadcast screen, the real-time speed of the test car will be displayed. Just over three seconds later, the Roadster accelerated to a speed of 100 kilometers per hour and maintained this speed for several seconds until the car passed the brake pile barrel and the test driver stepped on the brakes. After braking, just three seconds later, the speed of the Roadster dropped to 0 and came to a complete stop.

"We used the speed sensor and the car's real-time positioning system to calibrate the position where the car braked, and then recorded the car's final braking position. The subtraction of the two is the braking distance of this low-profile Roadster sports car. Specifically The number is 35.23 meters. This braking distance is 2.23 meters longer than the nominal value. It can be seen that the ultra-low temperature has a serious impact on the braking distance. Through video playback, we can see that the Roadster sports car is braking while braking. The body did not roll, and the front and rear shaking was within control. Our test driver has already driven the Roadster back to the starting point of the track, and the second test will begin immediately.”

After the first braking distance test, the same vehicle was used on site for nine consecutive tests. The braking distances were 35.34 meters, 35.18 meters, 35.22 meters, 34.97 meters, 34.94 meters, and 34.87 meters. , 34.72 meters, 34.63 meters, 34.66 meters, 34.59 meters. The braking distance of the high-end version of the Roadster sports car that will be tested later is similar to that of the low-end version, roughly between 34 and 35 meters. Neither of the two test vehicles experienced a decline in braking performance due to continuous testing. Instead, due to continuous braking, the tire temperature increased, and the test results were getting better and better.

Most of the netizens in the live broadcast room are young people, many of whom can drive, but not many have their own car, and even fewer are automotive professionals. Many people don’t know the braking ability of the Roadster sports car. For better or worse.

"Can anyone tell me where the Roadster's braking distance of about 35 meters ranks among mass-produced cars?"

"Usually, the braking distance of a car at a speed of 100 kilometers per hour is between 38-42 meters. The average braking distance of the Roadster sports car is about 35 meters. Obviously this is a very excellent result."

"The car I drive is a Honda Fit. The braking distance at 100 kilometers per hour is 39 meters. The Roadster sports car can control the braking distance at 35 meters, which is already very good."

"Don't forget, this braking distance was tested in a cold environment of minus 33 degrees. If this car is tested in a normal temperature environment, the braking distance will be further shortened, reaching % of the nominal value. Mi, it’s not impossible.”

"The braking distance from 100-0 km/h is 35 meters, which is a very good performance among ordinary cars. However, in the sports car category, the braking distance of 35 meters can only be regarded as an average level."

“据我所知保时捷911，100-0km/h的制动成绩为30.7米；雪佛兰克尔维特100-0km/h的制动成绩为31米；法拉利F12 Berlinetta和KTM X-Bow GT，100-0km/h的制动成绩为31.3米；保时捷918的100-0km/h的制动成绩为31.4米。当然以上这些跑车都属于超跑范畴，售价比Roadster跑车贵很多。”

After the Roadster sports car was tested, three MINIEV test cars also came on stage for testing. It is worth mentioning that due to the poor power of MINIEV and the long acceleration time from 0-100 km/h, it is difficult to complete the braking distance test on a 500-meter straight track. In order to complete the test, Qiao Ruida and the team members had to move to the oval track on the outermost circle of the test site. This track is four kilometers long. The straight sections on the north and south sides are more than one kilometer long, which is enough to complete the MINIEV braking test. .

Another hour later, the braking test of the three MINIEV cars was completed. Among them, the basic version of MINIEV performed best, with an average braking distance of only 39.5 meters. The top version of MINIEV performed the worst, with an average braking distance of 40.7 meters. The improved MINIEV performed mediocrely in this test, with an average braking distance of 40.2 meters. In fact, these three MINIEV cars use the same brake calipers and tires. The reason why the braking distances of the three MINIEVs with different configurations show a difference of more than one meter is because the weights of the three cars are different. Among them, the top version MINIEV has the largest battery and the heaviest body weight, so the braking distance will naturally increase. The basic version of MINIEV not only reduces the number of batteries, but also eliminates a fast charging system. The weight of the car is reduced a lot, and the braking distance is the shortest, which is reasonable. In addition, during the test process, the MINIEV's braking performance obviously showed thermal attenuation after multiple consecutive rounds of braking. In the worst time, the braking distance even exceeded 43 meters. This performance was a bit awkward.

At this time, Qiao Ruida, who had not been on the road for an hour, appeared in the camera again.
"Okay, now the brake tests of all test cars have been completed. Judging from the current statistical results, the impact of low temperature on the brake system is not as big as imagined. Judging from the test results, the braking performance of the Roadster sports car , it is excellent. The braking performance of the MINIEV is quite average, and there was thermal attenuation during the test. We will carry out certain optimizations in the subsequent mass production models. It’s the elk test.

The Moose Test, formerly known as the Moose Test, is also known as the emergency lane change test. It is a project used to test the vehicle's avoidance limits in emergency situations. During the test, the vehicle drove into the test section at a specific speed and swerved to avoid obstacles without applying the brakes or accelerator. If no loss of control or rollover occurs, the test speed is gradually increased to determine the vehicle's limits. This test simulates the situation when an animal (such as an elk) suddenly rushes off the roadside, and the driver swerves to avoid obstacles to test the vehicle's handling performance and stability. The elk test is an internationally used project to test a vehicle's ability to avoid danger. It is an important international standard for measuring vehicle safety. Through this test, the vehicle's handling performance and stability under various emergency situations can be evaluated, thereby providing consumers with safer and more reliable automotive products.

We use the ISO3888-2 test standard. The test is divided into three test areas ABC. The two meters into area A is the speed measurement point. After entering the test area, active acceleration and braking operations are no longer performed. Only rely on directional control to pass the test area and take the fastest pile insertion speed without hitting the pile barrel as the best result. The width of the pile barrel will be adjusted according to the width of the vehicle. The width of area A is the vehicle width X 1.1 meters + 0.25 meters. The width of area B is the vehicle width + 1 meter. The width of area C is fixed at 3 meters. It should be noted that the car elk test is dangerous to a certain extent. Improper operation may cause the car to overturn. Therefore, ordinary car users should not take the risk of performing the elk test. Our test drivers are all professionals with skilled driving skills, and they wear safety helmets throughout the test process to ensure the safety of the test process.

The first one to be tested is still the low-end version of the Roadster sports car. It has strong power and is equipped with an ESP body electronic stability system. It should have a very good performance in the Elk test. Our test car has been started, and the speed of driving into the pile has reached 78KM/hour. During the process of winding around the pile, the deceleration effect of the ESP body stabilization system is not obvious, but it can effectively control the body posture. When the driving speed exceeded 78KM/hour, the car body jumped slightly. However, the extremely low ground clearance and center of gravity still ensured the stability of the car body and successfully passed the elk test.

In the second test, the test driver increased the pile driving speed to 80KM/hour. When pulling back through the second turn, the car body skidded and almost hit the pile barrel next to it. Fortunately, the ESP system intervened in time. After stabilizing the car body and pulling the front of the car back, it barely passed the test.

In the third test, the test driver increased the pile driving speed again to 82KM/hour and successfully passed the first pile barrel. Oh, what a pity. When going around the second pile barrel, the vehicle body lost control. Knocked over the two outer barrels. The elk test failed this time
In the fourth test, the test driver accurately controlled the piling speed at 81KM/hour. It passed the elk test with a very extreme attitude.

In the fifth test, the Roadster's driving speed was the same as the third time, both at 82km/h. Under the precise control of the test driver, it successfully completed the test in sections A and B without hitting a pile barrel. Oh, what a pity. When passing through section C, the car lost control and knocked over three piles and buckets.

After five rounds of testing, the elk test score of the low-end Roadster sports car stopped at 81KM/hour, which is already a pretty good result. Next up for the Elk test is the top version of the Roadster sports car. It adopts a four-wheel drive and four-wheel steering design. I wonder if it will perform better in the Elk test. Let us wait and see.

Actual tests proved that the extra four-wheel drive and four-wheel steering played a minimal role in the Elk test. In the end, the top-end version of the Roadster sports car achieved an Elk test score of 81.5 km/h. "

Next, three MINIEV test vehicles also came on stage for elk testing. Since none of these three MINIEVs are equipped with an ESP body stabilization system, their performance in the Elk test was poor. Even the base model with the best score only achieved 65 km/h. The top-end version of the MINIEV, which is the most hip-slim, only scored 60 km/h in the Elk test. km/h. Moreover, during the test, the MINIEV's body shook very obviously. The wheels left the ground many times, and it almost rolled over twice.

After watching the Elk test of the two new cars, netizens in the live broadcast room left messages and expressed their opinions.

"The Roadster sports car's performance in the Elk test is really good. It can also be ranked in the first echelon among fuel vehicles. The MINIEV's performance in the Elk test is too poor, less than 70 km/h. Are you sure it's not a joke?" of."

"From the analysis of the Elk test results of these two new cars, the role of the ESP anti-skid system is very obvious, and there is a huge difference between having and not having the ESP anti-skid system. Of course, the existence of the ESP anti-skid system will also limit the performance of the car on the track to a certain extent."

"As an A00-class car with a price of less than yuan, MINIEV is not equipped with an ESP anti-skid system, which is reasonable. Car owners should just be more careful when driving."

"Actually, among mass-produced cars, there are very few with Elk test scores above 80 km/h. There are only a dozen or so models such as the Porsche 911, Ferrari Testarossa, and Audi R8, all of which are world-famous cars. The Rida Roadster sports car can be among them. It shows how outstanding its controllability and safety performance are.”

"In the winter of Mohe, the performance of the elk test will definitely be greatly reduced. The Roadster sports car and MINIEV can achieve this result, which is already quite good." (End of this chapter)