Chinese brands have caught up? 11 new car skirts analysis

The biennial Beijing Auto Show has already come to an end. Some time ago, our technical channel has released the chassis analysis of some new auto hot cars. There are too many new cars. We didn't mention anything like Tesla Model 3, Lexus ES, or WEY VV6. What secret does the new car's skirt hide? Today I will reveal the answer for everyone.

Compact car

Yat XT adopts new suspension design

The brand-new Yat XT is a hatchback version of Yat moving. The family-inspired design makes the new Emotion XT feel fresh and refreshing both in appearance and interior. Compared with the existing Yat XT, the new model has increased length, width and wheelbase to create a larger interior space.

Medium car

Tesla Model 3: Can I buy a small Model S?

To say that the most successful brand in the field of electric vehicles, non-Tesla is none other than. With its high cruising range and outstanding scientific and technological sense, Tesla has been leading the technological trend of electric vehicles. Regardless of hardware strength or design function, Tesla can always make it difficult for everyone to refuse. Tesla Model 3, Tesla's youngest brother, inherited this sci-fi design style. Externally so, then is it enough to be "real"? Let's drill down to see it.

From the aspect of the front suspension structure, because the front part does not have the traditional engine structure, the front suspension does not have any restrictions in the space layout, so the double wishbone suspension can be laid out “slightly as it pleases”. Of course, we can also see that in this structural design, Tesla is more hopeful that the Model 3 can move younger.

In the rear suspension part, the structure of Tesla Model 3 is somewhat normal. All the tie rods are not made of aluminum alloy. It is a little regrettable, but the rear suspension is better in flatness, and the flat rear suspension The shield cladding design has a certain effect on the improvement of aerodynamics.

In addition to the flat design of the rear suspension we mentioned earlier, in the middle of the chassis, the Tesla Model 3 also strives to be as flat as possible in order to get the airflow out of the bottom of the vehicle. In addition, we found that the car was treated with holes in the rear of the front wheel arches in order to reduce the generation of eddy currents inside the wheel arches and to achieve lower wind resistance. This design is also less common in similar production vehicles. .

Medium and large cars

Lexus ES: Or a product under the horizontal platform

Lexus's hot-selling medium-to-large-size car ES ushered in the world premiere at this year's Beijing auto show. As a new product under Toyota’s TNGA architecture, the new ES replaced a new platform: GA-K, which is currently the only one. Lexus models using this platform. It is reported that Lexus will abolish the GS series in the future, so as the only medium and large car in the brand, will the ES change its chassis structure?

Comparing with the whole new generation of Camry front suspension, it can be seen that the lower control arm of Lexus ES maintains a high degree of consistency with Cameron regardless of the material, shape, or position of its openings. This is exactly the platform strategy. The product under.

Stabilizers are often seen during vehicle modifications. They can constantly absorb the impact from the road during driving and a certain degree of distortion of the body during extreme driving, thereby reducing the probability of body deformation and improving the handling of the vehicle. Of course, there are stabilizers installed on the current ES and GS, which can also be seen as a whole new generation of ES is doing its best to open the gap with the Camry.

Compact SUV

Haval F5: The chassis of constant change of shape

After Haval H series and M series, Haval's determination to “eat the market segments clean” was reflected again in this auto show: the new Haval F5. The car's positioning size is between Haval H4 and Haval H6. It focuses on the younger market. The design also uses the current design language of Haval. The interior is similar to the Haval H4. In addition to these external performances, which chassis is the structure of the vehicle?

The McPherson structure used for the front suspension is consistent with many of its peers. The selection of steel materials can also be seen in the cost considerations in this price model, and from the perspective of the details of the front suspension design, Haval F5 seems to be completely consistent with the Haval H4, H6 models, and this point in the rear suspension It is more obvious.

After coming to the rear suspension, all the puzzles have been answered. Yes, it almost completely copied the rear suspension structure of the Haval H4 and H6, using a more specific lower control arm design (I want to see Haval H4, H6 suspension point here: Haval H6 / Haval H4 chassis analysis). This structure is derived from the previous generation of CR-V Honda, the current reputation, it is simple and reliable, and from the rear suspension we can see that the chassis of the car is also the same as the H4, H6, set aside Central drive shaft layout space.

In summary, the Haval F5 seems to be once again using the Haval H6 structure subdivision. It is reported that this series of models (F series) will likely become a substitute for the future Haval (H series) blue standard models, targeting the more young consumer market. From this point of view, the market segment is still Harvard playing slippery, as the future will not replace the blue label as the traditional legend, we wait and see.

Jaguar E-PACE: Platformization is very clear

As the Jaguar brand's first domestically produced SUV model, the reasons for the arrival of E-PACE appear to be so full: not only with the domestic Range Rover Aurora, found that the two lines of the gods shared the Jaguar Land Rover D8 platform, which is located in the compact SUV market Domestic sales are also extremely hot, so it's sensible to get a share of the domestic price reduction. What about the domestic E-PACE chassis? Is the platform feature obvious?

For the material of the control arm of the front suspension, the aluminum alloy material that is consistent with the overseas version is still used, except that the car at the auto show scene is sprayed with a protective wax for aesthetics, so the show car looks black.

As a product of the horizontal platform, the Range Rover Aurora and the discovery of the god line are only four-wheel drive models because of their Land Rover status. However, referring to the Jaguar F-PACE rear drive and four-wheel drive models, the domestic E-PACE is in the future. Is it possible to reduce the barriers to entry by abandoning the four-wheel drive to provide a precursor? let us wait and see.

Skoda Komick: Introducing cost-effective entry-level Skoda

As a compact SUV launched by Skoda exclusively for the Chinese market, Komick is responsible for falling prices and opening up larger markets, so it will be lower than Kodak in terms of materials and cost. In addition, Komich adopting the PQ25 platform does not have the same options in the chassis structure as Kotak using the MQB platform (the overseas version Kodak has a multi-link independent rear suspension), so its chassis structure is almost There will be no surprises.

Combining the positioning and pre-sale price range of Komick, the suspension structure used is also understandable, but it does not use the MQB platform like Kodak, just to make the two have obvious differences. What? After all, the PQ25 platform is technically inferior to the MQB platform, and perhaps this is one of the ways to control costs.

WEYVV5/VV6: Finally have four-wheel drive models

WEY finally has a four-wheel drive version of the model, and the VV5/VV6 four-wheel drive version at the Beijing Auto Show has finally made up for the shortcomings of the WEY brand on the four-wheel drive model, allowing consumers to have more choices. Next we will see how this car changes in the chassis. (Because VV5/VV6 only has a difference in shape, it will be read together in the text)

Anyone who is concerned about WEY models should be aware that the VV5/VV6 are the chassis structure of the Haval H6 that is used, the former McPherson, rear multi-link suspension, and in the four-wheel drive models, this suspension structure It can also be used.

OK, after briefly reviewing the basic structure of the VV5/VV6 suspension, let's take a look at the focus of this car - its four-wheel drive system. Anyone familiar with the Harvard brand model must know that there is no four-wheel drive version of the H6 model sold, and its four-wheel drive version will be followed by the 2017 models that have been discontinued for sale.

In addition, of the 2017 Harvard H6 models that were discontinued, the four-wheel drive models were only a very small part. Of the 34 H6 models of the same year, only four models were four-wheel drive models, and all of them were manual models. No four-wheel drive models are available for vehicles that match either the six-speed automatic transmission or the seven-speed dual clutch transmission.

The old H6 four-wheel drive model is equipped with the NexTrac four-wheel drive system provided by BorgWarner, which is a four-wheel drive system based on front-wheel drive.

WEY did not specify where the four-wheel drive system on the VV5/VV6 was from the auto show site. However, the four-wheel drive systems of the 2017 Haval H6 and Haval H5, H8, and H9 four-wheel drive models were all provided by BorgWarner. It is inferred that WEY's four-wheel drive system is also more likely to be from BorgWarner. In addition, the VV5/VV6 four-wheel-drive models may have been optimized for DCT gearboxes, giving them the ability to match four-wheel drive systems. However, this shows that the Great Wall has made significant progress in its powertrain.

Medium SUV

Big Commander: This Jeep bigger than the Grand Cherokee is not actually used for off-road! ?

Jeep can be described as deeply rooted in China, so that many older generations will now call the SUV model "Jeep," and the Jeep brand advocates cross-country spirit in its bones. The strength of off-road performance is directly related to the body structure and chassis suspension. From this point of view, the large commander just listed is unable to compete with the Grand Cherokee off-road capability, and it is more inclined to the 7 seats used by an ordinary family. City SUV.

The ordinary city SUV has a broader market demand than the hardcore off-road SUV, so the big commander also chose the chassis and body design that prefers the city. Why do you say that? I use a few details to analyze it for you.

Compared with the Grand Cherokee, from the perspective of the body structure, both are load-bearing bodies, there is no essential difference, but if you look closely at the suspension structure and the four-wheel drive system, they actually have a relatively large hardware gap. .

The big commander uses the most typical timely four-wheel-drive system in urban SUVs, with multiple-piece limited-slip differentials to distribute torque between the front and rear axles, while the Grand Cherokee has more sophisticated full-time four-wheel drive systems, and With adjustable suspension stroke, low-speed torque amplification and more suitable for off-road venues.

Regarding the big commander, you can't use it as a Grand Cherokee in general. Its Jeep gene may just be a bad way to make rain and snow safer. After all, the chassis structure, engine layout, and the four-wheel-drive system of the two are all very different. Don't look at it. But its off-road skills have a certain gap with the Grand Cherokee. It is more like carrying a family on a daily basis. 7 large cities SUV.

JT X70 Coupe: Similar layout to Chery Tiggo series

The Jetway X70 Coupe is based on the Jetway X70. The most important feature of the car is the appearance of a number of younger elements that form a distinct visual difference with the regular version. In the end, the pre-Macpherson-style, rear multi-link independent suspension layout is still used.

From the scene, the JT X70 Coupe and the JT X70 are consistent in the design of the chassis, so the car actually has a great similarity in the front and rear suspension layout design with the Chery Tiggo 8 models. In general, the former McPherson type, rear multi-link suspension independent suspension is a common layout of many medium-sized SUVs.

Medium-sized SUV

Is Auchan COS1° a shell-changing CS95?

Auchan COS1° is a medium and large-sized SUV newly released by Changan Automobile, with a pre-sale price of around RMB 10-15 million. It is mainly targeted at budgets with compact SUV models, but has more demand for space and number of seats. By.

The Auchan COS 1° front suspension adopts the common Macpherson structure, and the lower control arm is made of stamped steel plates. To reduce the unsprung mass of the front suspension and improve the response performance, an open hole design is adopted on the lower control arm. While ensuring the strength of the control arm, try to reduce its weight.

The same holds true for the rear suspension. The Auchan COS 1° uses an E-shaped multi-link structure with a longitudinal control arm and three lateral control arms (rods). The specific layout is also exactly the same as that of the CS75.

From the chassis point of view, Auchan COS1 ° is equivalent to a long wheelbase version of the CS75, but this does not mean that the two cars are also the same open. Using the same platform to develop the chassis can not only shorten the development cycle, but also further reduce costs.

Zotye T800 follows T700 chassis design

The T800 is Zotye's flagship SUV model. The appearance and interior design of the car follow the design of the T700. The appearance of the T700 is larger, and an additional seven configurations are provided to meet the needs of domestic two-child families for seven medium to large SUVs. On the powertrain side, the T800 follows the 2.0T engine on the T700, matching the engine with a 6-speed dual-clutch gearbox.

to sum up:

Although only from the chassis structure we can not completely determine the handling of a car exactly how, but from its structure and materials can be seen a car on the driving characteristics of trade-offs, combined with the test drive in the future, I believe consumers You can choose your own satisfaction model. As Chinese brands become more mature, their R&D level in the chassis is also getting higher and higher. The platform strategy makes parts more versatile, and the higher part versatility not only reduces the R&D costs of different models. It also shortened the R&D cycle. For example, COS1° was upgraded from the mature chassis structure of Changan CS75; and the technical upgrades made on the basis of the existing ones are a manifestation of R&D strength, for example, adding a four-wheel drive system. VV5/VV6.