On September 24, 2024, Huawei released Hongmeng Zhixing’s first coupe SUV, priced at 259,800 yuan, demonstrating its deep technical accumulation and industry driving force in the field of smart cars. Previously, Hongmeng Zhixing has been highly recognized by the market, and the cumulative order exceeds 140,000 vehicles. With its breakthrough design, large space, low wind resistance coefficient, advanced Turing platform and Huawei "Giant Whale" 800V battery, ADS 3.0 intelligent driving and other black technologies, the R7 redefines the smart SUV standard. Orders will exceed 30,000 within two weeks of pre-sale.

Huawei executive Yu Chengdong emphasized that the "R" of the Smart R7 stands for "Revolution" (revolution), which aims to bring a disruptive coupe SUV experience to young consumers in the smart electric era through innovation in space, performance, intelligence and safety. Among them, in terms of space revolution, the Smart R7 has an innovative OneBox design with a body size of 4956mm × 1981mm × 1634mm and a wheelbase of 2950mm. By optimizing the position of the C and D points, it has achieved a new breakthrough in the coupe SUV space, providing a "big" full matching experience that is both fun and comfortable to use.

The intelligent R7 realizes a large space of nearly 1 meter in the front and rear rows of the cabin through innovative body proportions and interior layout optimization. The interior design emphasizes technological sense and practicality, and the high-energy surrounds the driving space to optimize the vision, display and control area. It is equipped with an olive steering wheel to enhance the driving experience. The fully connected central control island integrates high-efficiency charging and storage functions, and can be equipped with a mini bar thermostat to meet the diverse needs of passengers. At the same time, it is equipped with intimate configurations such as central control storage compartment and shoulder pillow stereo to comprehensively improve driving comfort.

With its large space and luxurious configuration, the Smart World R7 makes the second row of the coupe SUV a luxury first class cabin. Its legs and head space are abundant, bidding farewell to the cramped feeling of the traditional coupe SUV. The standard Silk Cloud Seat 2.0 of the whole series provides the ultimate comfort experience, and the front and rear seats support a number of electric adjustments and ventilation, heating and massage functions. In addition, the rear row also has double storage drawers and innovative star black belt control panels, which combine convenience and technology, allowing passengers to enjoy a noble and comfortable journey.

As the first SUV of Hongmeng Zhixing, the Zhijie R7 is equipped with an innovative co-pilot zero-gravity seat, which provides 18-way adjustment and leg support heating functions, which can form a double 123 ° zero-pressure angle or even lie down to 137 °, achieving the ultimate lying down rest for passengers. Its large rear space ensures that even if the co-pilot seat is turned on in zero-gravity mode, the rear passengers can still enjoy a comfortable ride experience.

The Smart World R7 combines a transparent space with a quiet ride experience. It is equipped with a 2.1m 2 panoramic canopy and electric sunshades to ensure sun protection without sacrificing head space. It uses over 100 wind noise control technologies to create a quiet journey. Its storage space is also excellent. The three-layer trunk provides 837L capacity, and the rear seats are reclined and expanded to 2130L. It becomes a star bed room in seconds to meet various travel needs.

The intelligent R7 innovatively designs the front and back box of the electric suction bomb, combined with the double-click operation of the Knock-Knock knuckle joint, to elegantly access items. There is abundant storage space in the car to ensure the orderly storage of items. In terms of performance, equipped with the HUAWEI DriveONE 800V high-pressure silicon carbide power platform, the Ultra version model accelerates rapidly, brakes strongly, and handles well, showing the style of a coupe SUV.

The Smart R7 is equipped with the "Full Blood" Turing platform and is equipped with an advanced suspension system, which supports intelligent air suspension adjustment and adapts to various road conditions. Its platform is based on Huawei’s core technology to realize intelligent downhill cruising, active anti-skid and curve control, enhance off-road capabilities, and provide an excellent, comfortable and safe driving experience.

The Smart R7 not only has strong performance and excellent handling, but also has excellent energy consumption and battery life. Its ultra-low drag coefficient is combined with Huawei’s "Giant Whale" 800V high-voltage battery platform to achieve a maximum battery life of 802km, leading pure electric SUVs into the "Double 800" era. Relying on the national super 80,000 cooperative charging station, users can enjoy battery life replenishment and gallop far away without worry.

Intelligent World R7 leads the intelligent revolution, equipped with HarmonyOS smart cockpit, and expands the rear screen through HUAWEI MagLink to realize personalized touch interaction and convenient function integration. The central control supports customization, cute pet interactive wallpaper adds fun, and HUAWEI SOUND audio brings opera-level sound quality experience, creating the ultimate enjoyment of mobile living house for young users.

The Zhijie R7 is equipped with HUAWEI ADS 3.0 high-level intelligent driving system, which realizes intelligent driving in the whole scene, and the parking function is more intelligent and convenient. At the same time, the Zhijie R7 focuses on safety performance, uses submarine-grade thermoformed steel to build a high-strength body, and has passed a number of safety tests. It is equipped with an intelligent battery management system to ensure active and passive safety dual protection, bringing users a global true safety experience.

The Smart R7 performs well in active safety, and the omnidirectional anti-collision 3.0 system upgrade effectively avoids collisions. At the same time, the car combines space, performance, intelligence and safety, providing a variety of body and interior options to meet different personalized needs. In terms of price, the Smart R7 offers multiple versions, with generous car purchase rights. Consumers can order or book a test drive through multiple channels. The exhibition car has been settled in many stores across the country, and mass delivery is expected to start in mid-October.

On September 25, 2024, the second generation was officially launched. The new car launched three models, priced from 199,900 yuan to 229,900 yuan. The second generation Haval H9 was built on a tank platform and was positioned as a medium and large hard SUV, equipped with a 2.0T engine, body, and powerful four-wheel drive capability.

The listing of Haval H9 launched a total of three models, namely the exploration version, the expansion version and the extreme version, priced at 199,900 yuan, 215,900 yuan and 229,900 yuan respectively. Compared with the pre-sale price, the price of the new car has been reduced by 6,000 yuan, showing Great Wall Motor’s sincerity to the market and feedback to consumers. In addition, the factory also provided a replacement subsidy policy. The replacement subsidy for the old H9 model is as high as 20,000 yuan, and the replacement subsidy for other models is also 15,000 yuan, which further reduces the threshold for consumers to buy cars.

As a new generation model, the second-generation Haval H9 has been greatly upgraded in appearance, interior and power performance. The new car adopts the popular "square box" design, showing a tough and retro visual effect. The front grille is composed of four thick chrome-plated trims, and the center is inlaid with the "HAVAL" letter logo. With the retro-style square headlight set and round LED daytime running lights, the overall design is both rough and exquisite. The side of the body continues the body structure, and the straight waist line runs through the whole body, showing a slender and tough posture. At the rear of the car, the new car adopts an external spare tire and a longitudinal distribution of tail light sets. The tailgate is a side-opening design, and the overall shape complements the tough style of the body.

In terms of interior, the second-generation Haval H9 has also undergone a comprehensive renovation. The interior of the new car adopts a new design, and the layout is rough without losing the sense of technology. Equipped with a new steering wheel and a 14.6-inch floating center control screen, it improves the visual effect and operation convenience in the car. The sub-dashboard position adopts the same shift lever design as other models, and there are physical buttons and knobs around it, which is convenient for the driver to operate when off-road. The seat layout is available in 5-seat and 7-seat versions for consumers to choose from, and it is equipped with a panoramic sunroof, which further enhances the comfort and sense of space in the ride.

Off-road, the new car approach angle of 31 degrees, departure angle of 26 degrees, wading depth of 800mm, ground clearance of 224mm, can climb 45 degrees slope. Equipped with 7 driving modes such as standard, sports, economy, snow, mud, sand, 4L, etc., support tank turn-around, low-speed off-road cruise, transparent chassis and other functions. Torque can be enlarged by 2.64 times in low-speed four-wheel drive mode, and torque capacity is increased from 1200N · m to 1900N · m. The application ratio of high-strength steel in the body skeleton is 83%, which ensures the torsional stiffness of the body.

In terms of power, the new car is currently equipped with a 2.0T gasoline engine with a maximum power of 165 kilowatts, a peak torque of 385 Nm, and an 8-speed automatic transmission. The powertrain not only guarantees the vehicle’s strong power output, but also provides a smoother driving experience. In the future, Great Wall Motors also plans to launch models equipped with a 2.4T diesel engine to meet the needs of different consumers.

Haval H9, as the flagship SUV model of Great Wall Motor, has won the love and recognition of consumers with its excellent off-road performance, comfortable space experience and affordable price. The second-generation Haval H9 listed this time has been fully upgraded in appearance, interior and power performance. Can Haval H9 continue its brilliance in the 200,000-level market? We will wait and see!

[Autohome Guangzhou Discount Promotion Channel] brings you timely car market trends. The good news is that this luxury SUV is launching a strong promotion in Guangzhou. It is understood that at present, this high-profile model enjoys a cash discount of up to 10,000 yuan, and the minimum starting price has been adjusted to 395,000 yuan. This undoubtedly provides a rare opportunity for consumers in Guangzhou to buy a car. If you are interested in the Lexus RX, be sure not to miss this price reduction opportunity. Click "Check the car price" in the quotation form to get more favorable car purchase conditions.

The exterior design of the Lexus RX is full of luxury and dynamic, with a tough front face and a family-style spindle-shaped design for the air intake grille, which is exquisite and powerful. Its body proportions are coordinated, and the streamlined body lines reflect the elegance of Lexus. The overall style not only shows the dignity of the luxury brand, but also does not lose the sporty atmosphere, bringing users a unique visual enjoyment.

With its refined body proportions and streamlined design, the Lexus RX presents an elegant side profile. The body measures 4890mm x 1920mm x 1695mm and the wheelbase reaches 2850mm, which provides passengers with a large interior space. The tire size is 235/60 R19, and the front and rear wheels are used in this specification. With the wheel design, it not only enhances the dynamic feeling of the vehicle, but also enhances the overall visual effect. From the side, the RX fuses power and elegance, showing the characteristics of a luxury SUV.

The interior design of the Lexus RX presents a perfect blend of luxury and technology. The exquisite leather steering wheel provides an excellent grip, and its electric up and down + front and rear adjustment functions ensure driver comfort. The center console is equipped with a large 9.8-inch screen, which is clear and easy to operate. It integrates multimedia systems, navigation, telephone and air conditioning controls, and supports automatic speech recognition, which is convenient for users to operate easily during driving.

The seats, whether for the main driver or the co-pilot, are made of imitation leather to provide a comfortable and durable ride experience. Both the main and passenger seats support multi-directional adjustment, including front and rear, backrest, height and lumbar support, to ensure comfort during long-distance driving. The rear seats also take into account the needs of passengers, support backrest adjustment, and are equipped with a proportional reclining function to enhance space flexibility.

Overall, the interior design of the Lexus RX emphasizes practicality and luxury, creating a comfortable and advanced driving environment for both drivers and passengers.

The Lexus RX is equipped with a 2.5L displacement L4 engine with a maximum power of 139 kilowatts and a torque output of 241 Nm. This engine provides abundant power to the vehicle, and with the E-CVT continuously variable transmission, it ensures a smooth driving experience and fuel economy.

Summarizing the reviews of car owners, the Lexus RX has won praise for its elegant and elegant exterior design. Although it does not have an overly ostentatious visual impact, its durable temperament and exquisite craftsmanship details, such as the "spindle" grille and exquisite lamp design, reflect the brand’s insistence on quality. This is the charm of the Lexus RX, which has won the long-term love of car owners with its low-key luxury.

With the release of the new MIIT declaration information, we have also seen the figure of a new car from Geely. The new car is named Xingyuan, which is a new pure electric small car. The new car uses a new pure electric platform, and the new design also makes it look more fashionable and interesting. It is understood that Geely Xingyuan will use lithium iron phosphate batteries, and also has an independent suspension design. The new car is expected to be launched in the third and fourth quarters of this year.

From the announcement picture, Geely Xingyuan adopts a new design language, with smooth and smooth body lines. It can be said that in the field of small pure electric cars, more youthful design ideas are integrated, and the golden body ratio of the new car creates a full and tense dynamic beauty. In addition, in terms of details, the new car adopts a closed front grille, and both sides are also equipped with headlights similar to rounded polygons and double C-shaped diversion grooves on both sides, which further strengthen the sporty characteristics. The size of the new car body is 4135 × 1805 × 1570mm, and the wheelbase is 2650mm.

Looking at the side of the car, Star Wish has front and rear raised eyebrow lines, hidden door handles, low wind resistance wheels, and a two-color body design, making the overall look very young. In the rear design, the new car also uses a tail light set similar to a rounded triangle, which echoes the front of the car very well.

According to relevant information, Geely Star is built on a new pure electric platform. In terms of power, the car is equipped with a lithium iron phosphate power battery, and the electric motor has two powers, 58kW and 85kW respectively. And for further information on the new car, we will continue to pay attention.

Welcome to [Autohome Fuzhou Promotion Channel], bringing you the latest car purchase benefits. Currently, the much-anticipated promotion is being launched in Fuzhou with unprecedented intensity. Surprisingly, car buyers can enjoy a cash discount of up to 140,000 yuan, making the original starting price 962,800 RMB even more attractive. This is undoubtedly a great opportunity for consumers who love performance and luxury to buy a car. If you are interested in Mercedes-Benz GLE AMG and want to seize this price reduction opportunity, then please don’t hesitate to click "Check Car Price" in the quotation form immediately and let professional consultants reveal more preferential policies for you to help you easily own this high-performance car.

The Mercedes-Benz GLE AMG is stunning with its unique exterior design, with smooth and powerful front lines. The large air intake grille is blackened and embedded with the AMG exclusive logo, highlighting its high-performance identity. The overall style fuses the classic elements of Mercedes-Benz and the sports essence of AMG. The body lines are sharp, exuding a strong sense of movement and luxury, allowing people to recognize the status of its high-performance models at a glance.

As a luxury high-performance SUV, the Mercedes-Benz GLE AMG’s body lines are smooth and dynamic, demonstrating the combination of power and elegance. It has a body size of 4937mm long, 2015mm wide and 1782mm high, and the wheelbase reaches 2995mm, providing passengers with a spacious and comfortable interior space. On the side of the car, the rim style of the AMG logo is unique. With the front tires of 275/45 R21 and the rear tires of 315/40 R21, it not only enhances the driving stability, but also shows its sporty side. Whether it is the body proportions or the details, the Mercedes-Benz GLE AMG fully reflects the essence of its high-performance model.

The interior design of the Mercedes-Benz GLE AMG highlights its combination of luxury and high performance. The delicate Nappa leather and carbon fiber/flip fur seats not only provide ultimate comfort, but also reflect the sporty atmosphere of the AMG. The driver will hold the steering wheel, wrapped in leather and supports electric up and down + front and rear adjustment, and the embellishment of carbon fiber elements adds a sense of movement. The 12.3-inch high definition central control screen stands in the center of the dashboard, integrating multimedia system, navigation and phone control, making it easy to operate and full of technology. The seat configuration is rich, including front and rear adjustment, backrest adjustment, leg rest and waist support, providing personalized support for passengers. The front seats are also equipped with heating and ventilation functions, as well as power memory functions, to ensure the perfect driving experience for the driver. The second row of seats can also be adjusted for front and back, and the rear seats support proportional reclining, providing a flexible combination of space for passengers and cargo.

The Mercedes-Benz GLE AMG is equipped with a powerful 3.0-liter turbocharged engine, which releases 435 horsepower and reaches a staggering maximum power of 320 kilowatts. The torque output is also excellent, reaching 560 Nm. With a 9-speed automatic transmission, this engine provides the driver with an excellent driving experience and response speed.

Conclusion:

In the ever-changing automotive market, Mercedes-Benz GLE AMG has always won the favor of consumers with excellent performance and luxury experience. In this promotion, we not only offer highly competitive prices in good faith, but also to give back the trust and support of our customers for the Mercedes-Benz brand. Seize this opportunity, you will not only have a top-performance driving experience, but also enjoy this rare car purchase benefit. Mercedes-Benz GLE AMG, waiting for your driving, waiting for your exploration, let us start this journey of coexistence of performance and passion together. Please inquire, Mercedes-Benz GLE AMG will bring you driving pleasure beyond expectations!

Welcome to Autohome Foshan preferential promotion channel, here to bring you exciting good news! Foshan is attracting the attention of consumers with an unprecedented promotion. It is understood that this promotion is in progress, and the maximum discount amount has reached an amazing 155,000 yuan, making the starting price of this luxury coupe only 640,800 yuan. Seize this excellent opportunity, friends who want to own a Mercedes-Benz GLE coupe, be sure to click the "Check Car Price" button in the quotation form to get the most competitive car purchase discount. This is not only a cost-saving opportunity, but also the yearning and pursuit of quality life. Hurry up and act, not to be missed!

The Mercedes-Benz GLE coupe is a perfect blend of modernity and elegance with its unique design concept. The front face design adopts the iconic shield-shaped air intake grille of the Mercedes-Benz family, and is matched with exquisite chrome decoration to create a strong visual impact. The body lines are smooth and dynamic, outlining the low body posture unique to the coupe. The overall style is sharp and elegant, highlighting the luxurious sports atmosphere.

With its unique design and refined craftsmanship, the Mercedes-Benz GLE coupe outlines an elegant and dynamic side profile. The body size is 4941mm*2018mm*1716mm and the wheelbase is 2935mm, showing a spacious and coordinated proportion. The front and rear wheels are equipped with 275/50 R20-size tires respectively, and the carefully designed rim style not only provides excellent driving performance, but also adds to the vehicle’s sense of movement. The smooth lines on the side of the car reflect the perfect combination of luxury and power, whether it is static appreciation or dynamic driving.

The interior design of the Mercedes-Benz GLE coupe reflects the usual luxury and refinement. The steering wheel is wrapped in delicate leather material to provide a comfortable feel and support manual and electric adjustment, so that the driver can precisely control it. The 12.3-inch central control screen acts as the intelligent hub in the car, integrating multimedia, navigation and telephone, making it easy to operate and full of technology. As for the seats, the main and passenger seats are made of imitation leather, and the main and passenger seats are equipped with multi-directional adjustment functions of front and rear, backrest, height and waist support, bringing the ultimate riding experience to passengers. At the same time, the front seats are also equipped with heating and ventilation functions, as well as power seat memory functions, providing drivers with a personalized and comfortable driving environment. Whether it is visual or tactile, the interior of the Mercedes-Benz GLE coupe reflects the brand’s attention and pursuit of detail.

The Mercedes-Benz GLE Coupe is equipped with a 2.0T turbocharged engine with a maximum power of 190 kilowatts and a strong output of 258 horsepower. With a 9-speed automatic transmission, this engine not only provides a smooth driving experience, but also performs well in torque, with a maximum torque of 400 Nm. This configuration ensures that the vehicle can maintain efficient and flexible performance in various driving scenarios.

When summarizing the price reduction promotion of the Mercedes-Benz GLE Coupe, we deeply feel the Mercedes-Benz brand’s keen response to market changes and respect for customer needs. This price offer not only improves the cost-effectiveness of consumers’ car purchases, but also adds more attractiveness to the Mercedes-Benz GLE Coupe in the luxury SUV market. Taking this opportunity, Mercedes-Benz not only hopes to give back the support of old customers, but also looks forward to attracting more new friends to join the Mercedes-Benz family and experience the excellent driving experience and luxury quality of life brought by the Mercedes-Benz GLE Coupe. Looking forward to your seizing this rare car purchase opportunity, driving the Mercedes-Benz GLE Coupe, and setting off to explore the wider world. Thank you for your attention to Mercedes-Benz, and we look forward to serving you in the car dealership!

　　A few days ago, Aika Automobile obtained more relevant information from a set of FAW Toyota Crown Land Displacement configuration sheets exposed on the Internet. At present, the Crown Land Displacement has opened reservations. As a sister model of the fourth-generation Highlander (Parameters | Inquiry), the Crown Land Displacement adopts the design of the American version of the Highlander XSE model and is equipped with a 2.5L hybrid system.

　　　

　　From the exposed configuration list, we can see that Crown Lvfang will launch a total of six models, including two-wheel drive and four-wheel drive versions. The two-wheel drive version is an enterprising type and an elite type, with only 5 seats and 7 seats, and other configurations are basically the same.

　　On the four-wheel drive version, there are four configuration models to choose from. The deluxe version will have more configurations than the elite version, such as 20-inch wheels, panoramic sunroof, leather steering wheel/shift lever, electric adjustment of main and auxiliary drivers, and heating of front seats; the premium version has more rear privacy glass, 12.3-inch central control screen, electric tailgate, HUD head-up display, etc. than the deluxe version; the top version has more external welcome lights, external rearview mirror memory, and advanced punched leather seats.

　　　

　　In the power system part, the power combination of Crown Land will be a 2.5L engine + motor dual-engine hybrid system, which is also matched with the familiar E-CVT gearbox. The official 100-kilometer comprehensive fuel consumption is 6.1L.

　　[Autohome overseas spy photos] Recently, the latest spy photos of the new generation (|) have been exposed online. At present, the test car uses more mass-produced components, such as headlights. It is reported that the new car is expected to be officially released later this year.

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　　Friendly reminder:I hope that enthusiastic netizens can take pictures of the new car spy photos you found and send them to our corresponding mailbox: diezhao@autohome.com.cn, looking forward to hearing from you and becoming a member of the "spy".

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　　The front face of the new car adopts a large hexagonal air intake grille with a flatter shape, and the interior is in a scaly style. Compared with the previous spy photos, the headlights of the test car are suspected to be "complete", which is sharper than the contours of the current light group. Below the headlights, the new car also has ventilation holes.

　　The spy photos in the car have also been exposed before, and the changes are not small. The car will use a large central control display screen, and there will be a rectangular full LCD instrument in front of the driver. The center console of the car is a layered design, and the shift lever area has also been redesigned, and the traditional shift lever has been abandoned.

　　Audi’s new generation A4/A5 is also expected to be released this year, and foreign media said that the launch of the new Q5 will follow these two cars. These new cars will share the powertrain, and a plug-in hybrid version will also be launched. (Source: motor1; Text/Autohome Chen Hao)

　 　 In the stills of the "two-man attack" version exposed this time, it was the scene when the two of them went out to search for clues for the first time after reaching a consensus. Guo Fucheng and Zhang Jiahui drove to a certain place together, but they were already followed behind them, and the two shrewd detectives had already noticed it. In the face of many crises, the "two-man detectives" wanted to break through the siege, and staged a thrilling scene of drag racing on the road. "There are car chases in’Conspiracy ‘and’Conspiracy’, but I think it is more reassuring to have an’accomplice ‘partner." Guo Fucheng talked about the difficult scene at that time, with a relaxed look.

Next page:It is more difficult to chase the murderer for thousands of miles, and the director directly calls it a nightmare

When it comes to boron steel, in fact, many people have little understanding, and some people even confuse high-strength steel with boron steel. Some people say that the proportion of boron steel is particularly high, so it is particularly safe, but this is only half true. In layman’s terms, the use of boron steel is a matter of conscience; the use of boron steel is good, and the use of boron steel is ability.

Yesterday, I was chatting with a friend who is in the same industry. He has been driving the luxury Sedan for more than 3 years and told me that he wants to change the car because his wife has just become pregnant and the smell in the car has not dissipated. I am afraid that it will affect the child and need to replace it.

I: "Do you like it?"

Friend: "I want to see the new intermediate"

Me: "Oh, just because it’s more environmentally friendly?"

Friend: "Hey, not all of them. Everyone says it’s safer. I value this more when I have children."

Me: "Tell me where is safer"

Friend: "I knew the first person to invent the seat belt…"

You see, in fact, sometimes industry insiders don’t have much better opinions on a certain issue than ordinary consumers. For example, my friend didn’t know that the invention was actually "."

The most shining labels on the body are undoubtedly "safe" and "environmental protection". Perhaps because such labels are too eye-catching, many people do not realize where the safety lies under such labels. Its safety core may be as simple as its Nordic appearance.

Externally Soft and Inner "Steel": The Profundity of Boron Steel in Body Structure

When it comes to safety, it must be mentioned; when it comes to materials, some people say materials; when it comes to materials, high-strength steel must be the word with the highest appearance rate. Today we will talk about the story behind high-strength steel. Boron steel, one of the best structural steels, is the guest here today.

"Hello everyone, my name is Boron, and my English name is Boron. 0.001% of the earth’s crust is composed of my brothers and sisters."

Boron is a non-metal, its hardness in nature is second only to stone, it is widely used in the production of nuclear reactor control rods, and can also be used in the manufacture of alloys. Boron steel, as the name suggests, is a steel that is mainly alloyed with boron. After adding alloy boron, the steel has very high hardenability, high wear resistance and good fatigue resistance, and is an excellent structural steel.

Like many scientific technologies, boron steel was first used in the military industry, especially in the aerospace industry and submarine manufacturing. With the vigorous development of the manufacturing industry, boron steel has a new "application". As a large-scale industrial product, in addition to high strength, good craftsmanship is also an important factor, that is, the difficulty of steel processing cannot be too high. The appearance of boron steel and heat treatment technology perfectly meets this demand.

You might ask, "How?"

First of all, the strength is very high, and the nominal strength of boron steel after hot forming treatment reaches 1500 MPa, which has good safety performance.

? Secondly, the forming performance is good. The traditional process of manufacturing complex-shaped parts usually requires multiple ordinary steel parts to be welded, while the thermoforming process often requires only one part to solve this problem. The picture below shows the composite diagram of the vehicle B-pillar assembly. The left side is ordinary steel, which requires several parts to be welded. The right side is thermoformed steel, which is integrally stamped and formed, visible to the naked eye.

Combined with these characteristics of boron steel, it is mainly used as structural steel in the industry. The structural strength of boron steel is greatly increased, which improves the anti-extrusion ability, and then protects the life safety of the occupants in the car in the event of a collision. At the same time, boron steel thermoformed parts are also the most valuable lightweight materials at present. Advances in materials and processes make it convenient for people to travel while meeting increasingly stringent safety and emission regulations.

Known for its safety, it naturally excels in the application of boron steel. Its XC90 uses nearly 40% of boron steel, S90 uses 35% of boron steel, and V90 CC and XC60 use 35% and 34% of boron steel, respectively.

Have you learned this knowledge of boron steel?

Of course, you might say that boron steel is so powerful that the more it is used in the car, the safer it is? Let’s continue to look at it.

"Steel" is soft and easy: tell you

How should excellent design be done?

As an important part of the vehicle, it is necessary not only to meet the aesthetic requirements of appearance and vision, but also to meet the requirements of aerodynamics, man-machine performance, and NVH performance. More importantly, it is necessary to protect drivers and passengers against impact.

Generally speaking, people tend to divide the simple into and, which is often not enough when talking about safety. Stephan Ryrberg, senior principal engineer at the Group Security Center, said that a complete collision should be divided into three stages:

The first stage is the energy-absorbing collision of the front structure. This stage generates a specific energy, and we () want the front of the car to absorb as much energy as possible. So sometimes the front of the car looks badly damaged after the collision, but it actually protects us effectively. Of course, the structure must be energy-absorbing and deformed under strict control.

The second stage is the collision of the occupant compartment, that is, the direct collision between the occupant and the restraint system in the vehicle. Seat belts, etc. protect the occupant by absorbing the impact energy to significantly reduce the energy transmitted to the next stage.

The third stage occurs inside the human body, and different organs will collide with each other in the body. If the structure of the vehicle is well designed, the energy transmitted to the second and third collisions will be weakened accordingly, thus reducing the damage to the human body. "

With these insights in mind, let’s talk about what requirements a person who excels in safety should meet.

01

In the investigation of safety accidents, it is shown that the proportion of occupant deaths caused by frontal collisions is the highest, so in the event of a frontal collision, the energy absorption of the front structure has a significant relationship with the deformation of the cockpit. The greater the deformation of the energy absorption zone in a frontal collision, the more the collision energy is absorbed, and the impact force can be avoided as little as possible to the passenger compartment.

This process belongs to the "energy-absorbing collision of the front structure", and in the design, the front should absorb as much energy as possible to reduce the acceleration of the collision.

In the frame is the energy absorption design of the front structure. The material distribution map clearly shows the design idea. The yellow front stringer and the green front do not use ultra-high-strength thermoformed steel. The stringer uses medium-strength steel, and the front uses an aluminum alloy cavity structure with lighter weight and better energy absorption effect.

This design can ensure that the front structure can quickly collapse in the event of a frontal collision, which absorbs kinetic energy, thus ensuring the integrity of the cockpit. It can be seen that it is not blindly pursuing strength, but choosing the most suitable material in the appropriate part to ensure the safety of the passengers in the car as the first consideration.

Words like "soft" and "crashless" are often used to describe a car that is not strong, but in fact, through professional crash tests such as E-NCAP, C-NCAP, IIHS, etc., it can be seen that the collapse energy absorption design can greatly improve crash safety, that is to say, a reasonable "soft" is actually conducive to safety.

02

The second most common death rate in a car accident is a side collision. Since there is no buffer zone on the side, there is only one fan away from the outside world when a collision occurs, so the strength and the frame strength of the occupant compartment become the foundation for protecting the occupants in the car. Common measures include increasing the strength of the interior; increasing the strength of the sidewall components, including increasing the cross-sectional shape and thickness of the B-pillar and C-pillar; increasing the strength of the threshold beam; installing a beam system at the height of the B-pillar; and installing reinforced beams below and under the rear windshield.

We still take the XC90 as an example. The part in the blue box above is the most important crew compartment. Its importance can also be seen from the distribution ratio of ultra-high-strength thermoformed boron steel. The red thermoformed boron steel is almost all distributed in this area.

As the saying goes, "good steel is used on the blade", hot-formed boron steel is uncompromising "good steel", of course, it must also be used on the "blade".

The thermoformed boron steel with the best yield strength is used in the side-B-pillar-C-pillar-middle channel-lower threshold and the foot pedal area in front of the driver and co-pilot, that is to say, when you open it, all the hidden under the door frames are thermoformed steel with a strength of up to 1500Mpa; when you sit in the driver’s seat, the pedal area under your feet, and under your center armrest, all use thermoformed steel with a strength of up to 1500Mpa. The front, rear, and left of the driver are surrounded by thermoformed boron steel, forming a safe cage structure.

The purpose of this approach is to effectively transmit the impact force to the protective beams, columns, floors, roofs, and other components in the event of a collision, so that the impact force is dispersed and absorbed by these components, which greatly improves the anti-collision ability and overall safety. It is not easy to deform in the event of a collision, and better protects the safety of the occupants in the vehicle.

In addition, the linear and coherent force transmission path design can maximize the absorption and dispersion of the impact force throughout, whether it is a frontal collision or a side collision, the impact kinetic energy can be evenly distributed to the skeleton through a coherent force transmission path, reducing the deformation of the internal space as much as possible at the moment of impact.