[car home Professional Evaluation] UNI-K, as the flagship model of Changan UNI series, has become a "online celebrity" even though it has not been officially launched. The constant topic is closely related to its flamboyant and high-tech exterior interior design. Not only that, its body size, configuration layout and power specifications all meet the basic characteristics of becoming the "online celebrity" of the rim, but it is not excessive to say that Changan UNI-K has almost taken out all the cards of Changan.
Last year, we made the first test of its little brother Changan UNI-T commercial vehicle (click here to view). I think the overall performance is still in line with expectations, but there is a risk of rollover and the acceleration performance is not up to expectations in the limit state of Elk test.
This time again, we found it in advance before listing.Commercial vehicles of Changan UNI-K (hereinafter referred to as UNI-K)And tested it in detail.Friends who have been paying attention to car home must have seen the test video released a few days ago, in which some problems have really been exposed in the elk and brake test part of this car. Today, we will analyze the specific situation with words, so the dynamic and test parts are the first to bear the brunt.
More exciting videos are all on the car home video platform.
● The throttle is relatively soft in the initial stage.
Changan UNI-K uses a 2.0T engine with a maximum power of 233 HP and a maximum torque of 390 Nm, which is matched with an 8-speed automatic manual transmission. First of all, it needs to be affirmed that compared with the previously tested Changan UNI-T and CS75 PLUS models, the power calibration of UNI-K has made significant progress. In urban working conditions, the middle and high-speed acceleration performance is good and the output is very smooth. However, if the engine parameters given by the manufacturer are taken as the standard, then this car is really not explosive, which will be described in detail in the later acceleration test.
The gearbox is very willing to upshift. Under normal driving conditions, the engine speed has been kept at around 1600rpm. When the driver gives a small power request (maintaining cruising or slowly increasing the speed), the output is relatively stable, and the gearbox is no longer as unstable as that on CS75 PLUS, and the overall logic is improved to some extent. However, the downshift speed is still a short board, and its response and execution speed will still give a "power vacuum period" when the oil is suddenly supplied vigorously.
UNI-K’s throttle adjustment makes people feel uncomfortable. When the throttle is lightly pressed, the power has no feedback, but after a little effort, it is very abrupt. There is almost no transition between the two states, which is very nonlinear. For this reason, there are often a lot of situations at the beginning, and the same is true in the AUTOHOLD state. In addition, the brake foot feels soft, coupled with obvious body pitching, if you stop and go in congested road conditions, frequent braking and refueling actions will affect comfort. It is worth mentioning that this throttle characteristic will only be relieved in ECO mode.
As you can imagine, UNI-K’s audience is mostly home users, and many people often need to travel, so comfort naturally has a high weight. Even so, UNI-K’s suspension is a little too soft, and it can’t suppress the pitching and rolling of the car body well. Even a small amplitude of high-frequency vibration will make the car body fluctuate, and when it encounters a bridge and turns, the outside of the car body will produce a large roll.
Of course, this setting will be eased when running at high speed, and the driving style is somewhat similar to that of traditional American cars. Under the urban working conditions, the suspension can handle the broken vibration and small bumps well, but it is not tight enough to deal with the speed bump and high frequency short wave road, and it will appear vibration and looseness. On the whole, the chassis adjustment of UNI-K is obviously different from that of CS75 PLUS. The latter is firmer and tougher, and the texture is better. The former is softer, but it does not bring better comfort. UNI-K has more inertia because of its huge body and heavy weight. If the suspension can’t pull the body well, it will be difficult to maintain the stability and balance of the body, and the comfort can’t be guaranteed.
The upper and lower parts of the steering wheel are flat-bottomed, which is slightly smaller on this medium-sized SUV. The steering feel is not too unexpected, and the strong electronic smell is also the characteristic of many products with the same price. The feedback of road feeling and steering angle is not rich, and the virtual position in the central area is moderate. The steering force provides three modes: comfort, standard and sports. The lightest comfort mode feels more suitable for daily driving, while the steering feel in sports mode will be heavier.
When I was engaged in D gear and kept idling, a small amount of high-frequency vibration came from the pedal, which was unexpected. After all, the positioning of this car was not low. However, the engine noise is well controlled, and there will be no too noisy movement in the whole speed. Both tire noise and wind noise are well controlled. When it reaches 120km/h, the wind noise is stronger than tire noise, and the overall quietness is good. In addition, the SONY stereo provided by UNI-K is very powerful, with stereo sound quality and strong sense of surround, which is a plus item.
● Accelerated testing
After closing the ESC, the starting speed can be pulled to around 2400rpm, and the power release is very uniform and linear, but the explosive force is not strong. From the traction performance at the start, UNI-K is superior to the previously tested CS75 PLUS and UNI-T models, and much better than Geely Bo Yue PRO, and the ten tests are very stable, and there is no power attenuation. According to the data given by the manufacturer, this engine has a peak torque of 390 Nm, and its parameters have overshadowed many star models with the same displacement, but the sense of body and parameters are quite different.
The final test score is 8.83 seconds, which is very good if compared with China brands at the same level. However, judging from its engine parameters, this achievement seems to be not enough. Compared with some overseas brands with better performance, UNI-K still has a certain gap (1.5T crown road acceleration score of 8.56 seconds, 330TSI Tiguan L acceleration score of 8.03 seconds). On the whole, the acceleration level is in line with our previous expectations, and we can also see progress compared with ourselves, which is worth encouraging.
● Brake test-"feet" off the ground
More exciting videos are all on the car home video platform.
UNI-K’s center of gravity is relatively high, and its weight is in the front when it is fully braked, and the front suspension has obvious compression. The downward stroke of the suspension is relatively short, and the rear suspension does not have enough stroke to ensure that the rear wheel is grounded, which leads to the phenomenon that the rear wheel is off the ground during braking. At the same time, the suspension has a long stroke. After all the springs are compressed, the vibration absorber can’t pull the springs, and the reaction force makes the tail bounce. Similar situations are rare in our tests. In addition, even if the rear wheel does not leave the ground, its grounding area is very limited, the grip of the four wheels is unstable, and the body will swing slightly. On the whole, tires played a big role, and the score of 39.12 meters was not bad.
In the chassis design, there are concepts of pitch center and rolling center, which determine the suspension geometry of the front and rear pitch and left and right roll of the car body. It is rare for UNI-K to have its rear wheels off the ground during full braking, which is caused to some extent by problems in the geometric design of suspension. After that, we will discuss with the engineers of Changan Automobile, and release the conclusions in time, so that we can pay attention to car home’s articles and Weibo.
● Fuel consumption test
In the fuel consumption test, we adjusted the driving mode to ECO mode, driving 102.5km, with an average speed of 30.6km/h, filling 10.58L of No.92 fuel, the apparent fuel consumption was 8.7L/100km, and the measured fuel consumption was 10.3L/100km, which was lower than the recommended value of car home, and performed well.
● Noise test
Judging from the test values, the performance of the interior noise of UNI-K is very good, and the results under all test conditions are obviously lower than the recommended values, which is satisfactory. The noise of the original MC6 tire is too high. With the increase of speed, the wind noise at the front windshield also begins to increase. However, on the whole, tire noise and wind noise are relatively uniform, not too prominent.
● Elk test
I would also like to emphasize here that in the video comment area of UNI-K, there were some misunderstandings about the elk test, similar to the comment that "ordinary people will drive so fiercely". In daily driving, of course, no one will drive as violently as in the Elk Test, but the significance of the Elk Test is to test the working ability of the electronic system and the stability of the vehicle when the vehicle is in emergency line merging or avoiding obstacles. In principle, it is similar to the vehicle collision test, and it is a safety test that simulates special working conditions. In addition, the final test result is only one of the dimensions to measure the performance of the vehicle, and the response speed of the electronic system, working intensity, vehicle handling, original tire grip and other factors are the most valuable parts in this test.
More exciting videos are all on the car home video platform.
Lin Qi thinks: UNI-K’s elk test score (the speed when entering) is not bad in the same class, but the body posture is exaggerated, and there is a risk of rollover in the limit state. From the dynamic performance of zone A entering zone B, UNI-K has a good steering response with the running tires of MC6, but when the vehicle is about to enter zone B and start to turn to the right, it can be clearly felt that the upward stroke of the vehicle suspension system is extremely long, and it is necessary to wait for the shock absorber to be completely compressed before the vehicle starts to turn. At this time, the rapid shift of the center of gravity also throws the high center of gravity of UNI-K to the left. In the case of good tire grip, both wheels on the right side are off the ground, and with the rapid tail sliding and irregular jumping, the danger of rollover is very easy to occur.
Due to the appearance of the wheel off the ground, after the intervention, the electronic assistant system can neither pull the vehicle back to the normal driving track nor control the speed well, and finally the speed of driving out of Area B is still maintained at about 60 km/h. Fortunately, before entering Area C, the tires that were originally off the ground recovered their grip, and the vehicle speed decreased. The final test score was 72.1 km/h..
Working state of UNI-K electronic assistant system in elk test;UNI-K’s electronic assistant system intervened twice in this test. The first time was when the vehicle entered the B area from the A area. However, with the wheel off the ground caused by the rapid shift of the center of gravity, the role of the electronic assistant system also failed. The second intervention was that after the vehicle reached the second group of piles in Area B, the auxiliary system detected that the vehicle’s trajectory and posture were not controlled, and then the braking force of the left front wheel was increased. It was precisely because of this that the vehicle appeared two wheels off the ground on the right side in Area B..
Suggestions on the calibration of UNI-K electronic assistant system;In this class of SUV models, most engineers will calibrate the body stability system very conservatively, and even some luxury brands will not hesitate to have a head-on collision (braked hard when entering area B from area A, locking the right front wheel to make the vehicle slow down to the maximum extent), so as to ensure that the vehicle will avoid rollover or out of control.
In fact, UNI-K can also learn from this calibration method, and with the grip performance of MC6 tires and the sensitivity of vehicle steering system, after deceleration, the speed of vehicles entering Zone B is relatively low, and the inertia caused by rapid center of gravity transfer will be controlled accordingly, which greatly reduces the occurrence of wheel off the ground. Finally, the electronic auxiliary system of the vehicle is more efficient, which can not only help to control the speed, but also correct the vehicle trajectory, which greatly improves the active safety of the vehicle.
● Static review
Because my colleagues have made a very detailed static analysis of this car before, please click here if you want to see the detailed performance inside and outside the car and compare it with the Tiggo 8 PLUS. Today, we only review this part. The shape of UNI-K is very sci-fi, especially in the front part. The rich geometric matrix air intake grille is very eye-catching.
Personally, the side window is a little small, which affects the transparency of the car. Although this design gives the car a strong sense of strength, it also causes the door to look a little high.
UNI-K, which is full of sci-fi sense and sporty appearance, is really pleasing. I believe that as long as young people are interested in it, especially the air intake grille at the front of the car is highly recognizable. Although the rear part is a bit cliche, there is nothing wrong with putting popular elements on this new car. Let’s take a look at the interior.
In addition to a good visual experience, this full LCD dashboard is also very powerful. First of all, the left screen will display tire pressure, the middle position can display information such as vehicle speed, time, AR real-life navigation, and the rightmost screen can display vehicle information such as streaming rearview mirror, driving mode and engine speed.
Although these functions can be displayed on one screen, you can adjust whatever you want to see, but UNI-K’s full LCD dashboard is like a computer split screen, and most of the information about the vehicle can be completely spread out, so you can see what you want directly without any operation, and the actual experience is very good.
The functions of the central control panel can be completely assured. Navigation, Bluetooth, car networking, voice recognition control and OTA upgrade are all available, and gesture operation is also provided, which can realize functions such as answering calls, controlling vehicles, adjusting volume, etc., but CarPlay and CarLife interconnection systems are still not supported internally. In addition, the car is equipped with Iflytek voice interactive system, which can wake up through "Hello Xiao An" to help drivers and passengers operate in-car equipment, navigation and other functions.
It is worth mentioning that the SONY audio system with 14 speakers places one of the audio sources at the headrest. If you just want to listen to the music by yourself, the driver can turn on the headrest mode, and the sound in other parts of the car will be very low after turning on. Moreover, the loudspeaker can also directly transmit the warning sound in the car to the driver through the sound in this position, and the warning effect is improved.
To tell the truth, the static performance in the UNI-K car is satisfactory, and the part that I like most is the full LCD instrument panel, which is large enough to display most of the vehicle information in a tiled way. This is really futuristic, and the configuration is also directly full. Panoramic images, wireless charging, automatic parking, panoramic sunroof and adaptive cruise all appear.
● The seating space is amazing.
UNI-K’s front seat adopts an integrated design, but fortunately, the fixed headrest is in the right position for me, and the configuration is very comprehensive. The electric adjustment of the main and co-pilot seats (all standard), seat position memory, heating and boss key functions have all appeared; The rear seat is softer than the front seat, but the cushion is a little short and slightly angled, which is not very good for supporting the legs.
Ride space
● Skylight size
● Storage space
● trunk space
In order to gain a foothold in the domestic market, the space inside the car can’t be small. I think Chang ‘an’s designers must understand this point clearly. UNI-K with long wheelbase can be regarded as the best in this class in terms of seating space, storage space and trunk space.
● Full text summary
UNI-K has done a good job in the static part. I believe that the futuristic appearance and cockpit will be sought after by many young people, and the configuration and space are clearly arranged. This also shows Changan’s expectations and sincerity for this car, but I think there is still room for improvement in some details of the car, such as ergonomics of the rear seats and whether the central control panel is equipped with an interconnected system.
Of course, the problems of UNI-K in the test can not be avoided, and the stability of the limit state is relatively poor, which is very rare in the brake test and elk test. In terms of driving performance, its suspension has good vibration filtering performance, but its support is poor, so it can’t maintain the stability of the car body. Coupled with soft brakes and nonlinear throttle, I think the driving experience of this car doesn’t match its price and positioning. There is no doubt that UNI-K is a online celebrity product, which has gained a lot of attention by relying on the concept of shape design and marketing. As a car company, this is an approach that conforms to the times. However, it seems much more difficult to build a good car than to build a online celebrity. Changan, as the backbone of China brand, should play an exemplary role. Next, we in car home will continue to follow up the testing of UNI-K, and will release the latest progress as soon as possible, so please continue to pay attention. (Photo/Text/Photo by car home Zheng Lei Xie Wei Video Juck Zhang)
AH-100 total score table:
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