A new car will carry out strict testing at the factory, including chassis filtering, NVH, vehicle chassis manipulation and stability, to ensure that new cars delivered to the owner reach a perfect state. After all, a car has reached a perfect balance in the state of the original place.
There are currently some tests for new cars very hot, such as performance testing, brake testing, winding pile testing, elk test, chassis filter, NVH test, etc., although these tests are real data. However, some data even exceeded the original calibrated value, which proves that the test vehicle exceeds the official parameters given, and some data does not meet the ideal value of the official calibration, but it is not possible to directly prove that this car will not work, after all, some The test data can only be for reference only, this test is the elk test, one most directly reflects the stability of vehicle stability.
What is the elk test?
Elk test has been very popular in the network, many consumers are holding a lively mentality, plus the network Some erroneous boots, many people now think that the control is good or bad, as long as it looks at the speed of the drum test, it can be assessed, in fact, this is a wrong conclusion, first of all, what you need to know, what is elk test .
There are many open roads in Nordic, and there are very few pedestrians on the road. In addition to the car, there will often be a moose (not elk, China is translated into elk) through the road. Wild animals cross the behavior of the road, not only caused great damage to the past, but also is very disadvantageous to the camel. Therefore, in the 1970s, a test can be invented in the road to suddenly appear in the road: the elk test, its predecessor should be called the oscha test, but after entering China, it turns into the elk test, the name is changed. However, the test content has not changed.
The previous elk test is tested in the absence of a vehicle full load and the retrieval case, and the tester is released from 2 meters through the starting point of the constant vehicle. The pedal, record the current speed, no acceleration during the period, the brake operation, only by adjusting the direction, if not encountered any pile bucket, thenThe speed of the record is taken effect. However, when the elk test is currently carried out, the vehicle is almost airborne state.
Therefore, the two major elements tested by elk do not touch any pile bucket, the higher the speed of the speed, representing the extreme speed of the end of the failure. For a few more, the first vehicle passed smoothly, through the speed at 65km / h, the car could not explain that the car was stable, the second vehicle passed the speed of 75km / h, and the wheels were slightly separated, and it could not explain The stability of this car is very poor. After all, through the test, the different speeds can only prove the stability limit of a car.
During the test, all test vehicles will always verify the limit speed, and the lateral acceleration of the vehicle will reach 0.8 g, which belongs to a typical limit driving. (The speed of the user’s daily use of the usage is hard to exceed 0.3 g.) Because more than 0.3g working conditions, it is basically not even more than this value during daily use. If the side acceleration exceeds 0.3g, then The driver has begun to decelerate, so the elk test is very small in the daily driving.
What kind of grade is excellent?
If the elk test is passed, it is of course the speed of the vehicle, the better the body stability, but the market is in the market There are many, so the results are uneven, and the driver has a certain impact on elk testing. The bigger the weight, the greater the inertia, even if there is a wider tire as support, but still achievements are not very high, this BMW X5 M Thunder version is a good example, whose speed is 73.7km / h, anti-electric electric The car has a lower center of gravity, so ideal one speed has reached 77km / h. At present, the domestic elk test has an average speed of 68km / h. Chang’an Uni-K, which is about to be listed, reaching 73km / h through elk test, above the industry average.
The medium SUV has a larger body and a higher chassis, so the shock absorber and the suspension will be increased, and more comfortable The adjustment is low, and the limits of the inclination are often low. After all, the shock spring,The avoidance bar and the tire are the largest parts of the elk test. If the tire grip is large, the pressure on the shock and the suspension is, the more obvious the body attitude will, and the shorter shock suspension is, the shorter the shock suspension. The pressure of the tire is larger, the easier, the easier breakthrough of the tire itself. Therefore, the speed of the elk test is determined according to the vehicle’s own shock absorber and the suspension calibration, is not because of a series of problems such as the vehicle’s own stability. After all, many models on the market are comfortable and different, and the final test results of the type of model are also different.
It can be seen that from the collected market data, medium SUVs are like a series of markets such as roads, VV7, and crown. The hot-selling models are not more than 70km / h through the limit speed of elk test, and this score is the limit test speed of these models.
Elk Test In addition to watching tires, suspension, it is also very dependent on ESP. As early as the first generation of Mercedes-Benz A, the first generation of Mercedes-Benz A, the overseas media has conducted elk testing. As a result, the Mercedes-Benz A-class directly turned into the car, narrower tires, high chassis, not installed. ESP and other factors let the first generation of Mercedes-Benz A-class really “turn the car”, but then Daima will order the production of Mercedes-Benz A, and all recalls the sold vehicles, rectify, add ESP, replace a wider tire And reducing the center of gravity of the vehicle, so this matter has also laid the popularity of subsequent ESPs.
If the ESP intervention is earlier, the wheel slip will limit the speed of the vehicle, the speed will not be again Improve, the body attitude is easier to control, then the speed in the elk test is not very high, driving fun is also declined. If the ESP is late, the driver can guarantee the balance of the vehicle through the counter-direction, and the elk test is high, but this is also very testing the driver’s driving technology.
Changan Uni-K did not pursue body attitude control, intentionally intervene in advance of ESP in advance to reduce the speed of the vehicle, but under the premise of ensuring safety, preserved full driving Help fun, satisfying the construction needs of Changan Auto “Pleasure Driving” gene. And the horse-name MC6 tires pay more attention to grip, and the suspension settings “comfortable” to biased the city, so the body attitude is imperfect in the elk test.
What is the elk test does not represent anything, and the final data is just a reference standard. When actual use, it can avoid Risk and protect the driver’s personal safety in the car, is a real good car. Light watching data cannot directly define a car’s good or bad. The problem of vehicles, and atmospheric pressure, tires, roads, driving methods have great contacts. And the elk test is very valued for ESP, suspension, tires, drivers, etc., the manufacturer calibration data directly determines the results of the elk test, and the speed of the car cannot prove that the car is very good, and the car is low. The car has a risk of turning into the car in the limit state, which is to see how the original standard. Therefore, rational look at the problem, don’t be a cloud.