The first in depth teardown of the extreme cold challenge vehicle on the whole network The quality a

Mondo Cars Updated on 2024-01-30

With the arrival of winter, the performance and energy consumption of new energy vehicles have become a key topic of concern for consumers. So, what kind of products can solve the pain points of users' winter travel: both the economy of electric vehicles and the performance of gasoline vehicles, while avoiding energy anxiety.

Not long ago, at the test site of the China Automotive Center Extreme Testing Center in Yakeshi, Inner Mongolia, the all-new CR-V E:PHEV was tested in an extremely cold environment for a variety of driving scenarios, and achieved excellent results. After the test was completed, on December 19, the all-new CR-V e:PHEV was broadcast live on the whole network for the first time in Yakeshi. This teardown interprets the quality, interior details, principles and other factors behind Dongfeng Honda's excellent performance, and also allows consumers to better feel the quality and strength of the new generation CR-V e:PHEV.

In order to understand the dismantling status and technical characteristics of the vehicle more intuitively and clearly, Cao Libo, an authoritative expert in the industry, a professor and doctoral supervisor of the School of Mechanical and Transportation Engineering of Hunan University, was also invited to the sceneYan Chuang, a well-known car critic;Hua Miao, Engineer of China Automotive Center, Chief Tasting Officer of China Automotive Media;He Junnan is an engineer at the Extreme Testing Center of China Automotive Center. Dongfeng Honda's sales department and product planning department Zhao neneneea were invited to Wuhan siteZhou Yucheng, Technical Engineer of Dongfeng Honda New Car Model Center;Yuan Dingyi, Engineer of China Automotive Center, Chief Content Officer of China Automotive Media;Beibei, the star anchor of Dongben, witnessed the quality of the new generation of CR-V strong electric intelligent hybrid test vehicle that understands energy saving and performance.

Uncover the mysteries withinside with the Fearless Extreme Chill Challenge.

The all-new CR-V e:PHEV has achieved excellent results in the Winter Automotive Performance Challenge, the Winter Automotive Energy Saving Challenge, and the Winter Automotive Thermal Management Challenge. This time, the whole vehicle was disassembled in detail, including the body-in-white, doors, engine powertrain, subframe, fuel tank, aluminum alloy anti-collision beam, shock absorber, air conditioning system, etc., to present the technology and materials of the CR-V E:PHEV in a comprehensive and realistic way.

The dual-motor hybrid system delivers a strong sense of power.

The meteorological characteristics of high altitude areas are mainly low temperatures and snowfall. Compared with conventional asphalt pavement, ice and snow pavement has a lower adhesion coefficient and a higher driving risk. Engineer He Junnan said that this road condition requires sufficient testing, calibration and verification of the vehicle's powertrain and chassis system during the development phase in order to provide users with a more satisfactory driving experience.

The all-new CR-V e:PHEV achieved a best lap time of 1 minute and 9 seconds in a low-grip handling performance test on two kilometres of snowy surface, with a fuel consumption test result of 5 in low feed conditions01L 100km, which is 14% lower than the official WLTC calibration data. Its superior performance is inseparable from its powerful powertrain. It is understood that Dongfeng Honda's new CR-V has a more compact PCU than the previous generation hybrid system. In such a small volume, intelligent algorithms are used to switch freely between pure electric, hybrid and direct engine power modes.

Mr. Yan Chuang also shared with you the driving experience of this car: I felt that the power was good when I was test driving, and when cruising at high speed, the engine could enter the high-speed direct drive mode at a lower speed, which effectively increased the power reserve, and the maximum speed could reach 193 km h, and the high-speed performance was greatly improved. The new low-speed engine direct connection mode realizes the direct engine drive when driving slowly in the city, which not only meets the power requirements, but also improves fuel economy.

This is also due to its high-power, high-torque drive motor, which has a maximum power of 135 kW and a maximum torque of 335 Nm, an increase of 20 Nm compared to the previous generation. This change ultimately improves acceleration performance throughout the vehicle. The internal structure of the motor rotor adopts a Truss-type multi-circular structure, which reduces the centrifugal force of the rotor and increases the speed of the motor, from 13,000 rpm to 14,500 rpm in the previous generation. These changes help to increase the maximum speed. These indicators all demonstrate Dongfeng Honda's strict quality requirements and continuous improvement attitude in the design and development process.

At the same time, Honda's high-efficiency i-MMD dual-motor hybrid system adopts ternary lithium battery, which has the advantages of small size, high energy density and good low-temperature discharge performance. Another point is that the design of the IPU also adopts a miniaturized structure, adopts the integrated design of cooling water and shell, the battery module is small and lightweight, the battery volume is reduced by 54%, saving space, effectively increasing the capacity of the fuel tank, and bringing a flat and large luggage space. At the same time, it also achieves a lighter weight reduction of 150 kg and 53% of the weight. We know that after hundreds of years of development, fuel engines have become very mature and reliable. How to achieve lightweight and miniaturization, how to improve engine thermal efficiency, and how to achieve carbon neutrality through renewable energy have become the development direction of major enterprises. In this era of great changes in the past century, Dongfeng Honda has continued to work hard and spared no effort in the research and development of engine technology. Continuously optimize the downsizing and lightweighting of hybrid systems to improve engine thermal efficiency. In addition, we learned that this is still a hybrid engine that has won the Ward Top Ten Award three times. After more than 20 years of experience in hybrid system development, the global sales of hybrid models have reached 4.5 million units, and the quality is stable and reliable, demonstrating Honda's deep technical expertise and craftsmanship in the field of engines.

The chassis suspension and body materials bring good handling and safety.

Of course, good handling performance is also inseparable from the tuning of the chassis suspension. It can also be seen through the teardown that the subframe design of the new CR-V e:PHEV chassis uses a single die-cast aluminum alloy subframe, which is lighter in weight and uses materials in the core area, which is also very rare in its class. Teacher Hua Miao also introduced that the perception performance of the vehicle state can be improved through the sensor, and the signal can be collected every 2 milliseconds to achieve more accurate shock absorption control logic, and the response time is less than 20 milliseconds. This means that there will be no noticeable leaning and bumpy sensation in the vehicle, regardless of the road surface.

Through the disassembly, we can see that the materials used in the fuel tank are also very particular. The material adopts a hollow blow molding process, which can reduce the weight of the vehicle and achieve a better lightweight design. Mr. Hua Miao also introduced that during the dismantling process, it was found that the position of the fuel tank was designed in front of the rear axle of the chassis, which was also to ensure that the risk of the fuel tank was avoided in the event of a rear-end accident. This shows that Dongfeng Honda has considered many details of driving safety in the design process.

In addition, we can see that the car's battery was jointly developed by Honda and CATL, using the latest high-nickel ternary materials, high-strength, lightweight battery shells, and high-space-efficient module designs to create a lightweight, high-energy-density battery module with an energy density of up to 132Wh kg. It is important to know that this ternary material has excellent low-temperature performance advantages and has undergone many rigorous safety and reliability tests, making it a suitable material for extreme cold and hot weather. At the same time, during the disassembly process, we also found that the module inside the battery can be disassembled independently, which is convenient for maintenance and can greatly reduce the maintenance cost.

Now that battery safety has been mentioned, it is necessary to affirm the high-safety battery protection structure on the body of this car. We found that a large amount of highly rigid materials were used around the passengers and the battery, forming a rigid cage-like body to ensure the safety of the battery.

Professor Cao also introduced that from a technical point of view, the battery perimeter is protected by a "well" shape, and the maximum strength of the floor beam and longitudinal reinforcing beam reaches 980MPa, which runs through the entire width of the vehicle, further enhancing the overall rigidity of the vehicle. The front part of the battery was protected by two stringers, and the strength of the center reinforcing plate of the instrument and the center channel of the floor was increased from 780 MPa to 1500 MPa. The steel at the overlap of the front impact beam with the ACE carrier has been increased from 590MPa to 780MPa.

Safety first, quality first. We can also see the interior design of the vehicle, the structure, and the materials used in the product through the teardown. Good design concepts and superior materials are important factors in improving the quality performance of vehicles. The all-new Dongfeng Honda CR-V has done a good job in terms of body design and materials, especially in terms of travel safety, which everyone cares about. It can effectively protect the battery safety and vehicle safety, giving users more confidence. The vehicle's high-quality air-conditioning system brings a comfortable cabin experience.

This time, a simulated test of the comfort of air conditioning during driving was also carried out. Once the vehicle is heated, the new generation CR-V E:PHEV goes from -13 in just 2 minutes and 50 seconds7. Heating to 26 is equivalent to a comfortable travel temperature after only placing personal belongings after getting on the car, which fully improves the efficiency of the user's winter travel. From the overall quality of the vehicle, what is the reason for this good comfort, even in winter temperatures?He Junnan introduced the reasons for evaluating the comfort of air conditioning from an experimental point of view, mainly evaluating the rapid heating capacity of the air conditioning system in this extremely cold environment, the ability to maintain and regulate the air conditioning temperature under different driving conditions, and the heating uniformity of different positions in the interior of the vehicle.

For the new generation of CR-V E:PHEV after disassembly, Professor Cao introduced that the air conditioning damper adopts a rubber-wrapped structure, which has good sealing, is not easy to age, and has a better dustproof and waterproof effectThe motion mechanism of the air conditioner adopts a complex multi-swing arm mechanism to control the opening and closing of the damper with higher precision and better quality. This also reveals the reason why Dongfeng Honda CR-V e:PHEV was able to achieve good results in the air conditioning comfort test, and it is believed that it will also provide users with a comfortable cabin experience in winter or summer.

Postscript. Through the above in-depth analysis, it is believed that consumers have a better understanding of the new CR-V e:PHEV, and it also has important reference and reference significance for the performance technology of hybrid vehicles in severe cold conditions. As the world's best-selling model, Dongfeng Honda CR-V once surpassed its peers in terms of rich configurations, excellent performance and energy consumption, and became the first choice for about 200,000 family SUVs. It is believed that after this test and teardown, the all-new CR-V will also gain more trust from users in the northern winter and become the preferred model in the northern winter.

Craftsmanship creates quality, details create beauty. It can be seen that Dongfeng Honda has invested a lot of energy in the design and development of automobiles, manufacturing processes, and material selection, and can produce trustworthy and high-quality cars for consumers. Finally, it is hoped that through this in-depth dismantling, consumers can better understand the attitude of the Dongfeng Honda brand towards technological excellence and the pursuit of excellence, so that consumers can also feel more peace of mind and comfort when choosing and using cars.

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