B-class car market competition upgrade It turns out that "comfort" is the most advanced way to play in the circle

Under the trend of consumption upgrading, people's love for cars is also changing. Nowadays, in the new era of consumers' car buying concepts, they no longer blindly pursue big brands, but pay more attention to high-quality car experience. McKinsey's "2021 AutoMotive Consumer Insight Report" shows that the 200,000-300,000 price range has now become the "sweet spot" of the market, and comfort has become an important indicator of car purchase.

However, in the current B-class car market, "inner volume" has become an unavoidable keyword, from the "sportswear" of ducktails, large grilles and large wheels on the street to the "intelligence" of various large joint screens and multi-screens. Many times, some mainstream car brands focus on grabbing the attention of young people and ignore the comfort car experience they really want.

So, what determines the comfort of the car? Some might say it's a car seat, some say it's a sunroof, some say it's interior space. In the eyes of automotive professionals and technicians, automotive NVH is the soul of automotive comfort. The quality of the NVH indicator is directly related to the comfort of a model.

For a long time, "comfort" is a unique label of Dongfeng Nissan Tianlai, and the title of "big sofa" has been circulating in the automobile industry for a long time. In the new consumption era, Dongfeng Nissan did not lie in the "comfort zone" and stagnated. Instead, from the perspective of "tranquility", the product is upgraded again.

Recently, the Certification of China Automobile Advantech announced the NVH certification results of the Tianlai 2021 model, and Dongfeng Nissan Tianlai passed the certification with excellent results and won the "Quiet Star" certificate, becoming the first joint venture B-class sedan to obtain the title. So, with the blessing of advanced quiet technology, what comforts has Dongfeng Nissan Tianlai brought to car owners?

Cracking the "Metaphysics" in the Rim

Tianlai won the "highest score"

In the eyes of many people, the technical problems of the automobile market may be "three major pieces" and "three electricity". But in the minds of automotive engineers, NVH is a "metaphysics." In terms of knowledge, as soon as the question of "NVH metaphysics" came out, engineers turned into scribblers and complained about the difficulties.

Professional technical problems aside, to build a car by at least tens of thousands of parts combined together, want to make so many parts to cooperate "seamlessly", the difficulty can be imagined. However, this "problem" is also a "pass" that must be crossed in car building, and the level of NVH technology is closely related to the comfort of the whole vehicle.

In the mid-to-high-end car market, Tianlai has always been known for its tranquility. As early as 1994, the moment the second generation of demeanor was born, it enjoyed the reputation of "the king of global silence". Compared with its competitors, Tianlai has always done a good job in quiet performance. On the seventh generation of Tianlai, it once again reflects Dongfeng Nissan's strong foundation in NHV technology.

Because of this, in the CCPC China Mass Production Car Performance Competition last year, Tianlai won the full-court championship of the sound insulation and noise reduction competition. This year, Tianlai has undergone layers of tests and won the title of "Quiet Star" in the certification of China Automobile Advantech. As an authoritative evaluation center in the industry, China Automobile Research Institute is very strict in the assessment of "Quiet Star", and has a multi-dimensional evaluation system to comprehensively assess the overall quiet level of the vehicle.

It is reported that in this evaluation, the participating models are professionally tested in the semi-silenced laboratory and the mixing room, and the evaluation items are divided into two types, one is to evaluate the single-point noise reduction coefficient of the sound insulation in the key position of the vehicle, and the other is to evaluate the single-point sensitivity of the vehicle noise transfer function. In both tests, Tianlai outperformed the highest rating criteria in key areas of noise impact.

Among them, in the single point noise reduction coefficient test project of sound insulation, the noise situation of the main and co-drivers in the car is most susceptible to noise interference, and only the evaluation index is greater than or equal to 3000, in order to get the highest level of A-level evaluation. In the test, Tianlai performed well, with the driver's outer ear measurement point coefficient of 3090 and the co-driver's external ear measurement point coefficient of 3094, both exceeding the A-level evaluation standard. This means that the members of the main and co-pilot seats sit in the car, which can avoid being disturbed by external noise to the greatest extent possible and experience a comfortable and quiet ride.

In the noise transfer function single-point sensitivity test project, the noise prevention of key parts such as the front cabin and exhaust pipe was mainly assessed. In this test, only values below or equal to 3100 can get the highest rating. Tianlai still did not "drop the chain", and the measured point coefficient of the front cabin with the highest weight and the most important was 3061, and the measurement coefficient of the exhaust pipe orifice was 3094, and both got the highest score again.

A number of beautiful assessment results have enabled Tianlai to successfully win the title of "Star of Tranquility". Behind the honor is a series of efforts made by the technical team of Dongfeng Nissan on the vehicle tranquility system. For a long time, Tianlai has taken the construction of the quietness system as the top priority in the design, and strives to create a "theater-level tranquility" space for fans, bringing a high-level comfort experience.

"Black Technology" quiet technology blessing

Comfort is more than just a label

From a technical point of view, the NVH mute project is indeed complex and difficult to do. Statistics show that about 1/3 of the vehicle's fault problem is related to the NVH problem of the vehicle, and many car brands even spend 20% of the research and development costs on solving the NVH problem of the vehicle.

In the construction of the vehicle quiet system, the technical team of Dongfeng Nissan has made great efforts. To achieve this goal of turning the Tianlai 2021 model into a "theater-level quiet space", engineers need to extend the quiet project to every part of the vehicle.

Dongfeng Nissan starts from three dimensions to achieve the ultimate in the quiet engineering of the Tianlai 2021 model. First of all, Nissan engineers used a large number of sound insulation materials, in addition to the front windshield and side doors and windows of the vehicle using high-strength double-layer sound insulation glass, but also in the top, bottom, front of the vehicle and other places to innovate the use of double-layer sound insulation cotton materials, to maximize the blocking and absorption of noise outside the car.

At the same time, the two black technologies of ANC active noise reduction system and ATR active torque rod system have also been applied to the Tianlai 2021 model. ANC active noise control system, belongs to a "lightweight" and "active attack" technology, it detects the engine and environmental noise in real time through the microphone in the car, and emits the same frequency reverse sound wave through the speaker, effectively canceling the noise during the vehicle driving process. The ATR active torque rod system can effectively control the engine vibration, thereby blocking the noise transmission.

Innovative sound insulation material + two black technologies, so that the Tianlai 2021 model to achieve a full-dimensional quiet space. In addition, coupled with the 9-speaker top-of-the-line BOSE sound, the new standard large panoramic sunroof and Multi-Layer ergonomic seat, and the long wheelbase of 2825mm, the Tianlai 2021 model has the quietest and most comfortable interior space in its class.

On early summer weekends, the owner drives the car to the scenic suburbs, lies in the car, looks at the white clouds through the skylight, and lets the heart wander away with the music; you can also open a popular movie blockbuster, adjust the seat to the best position, and enjoy the cinema-level advanced experience in the car.

In short, Tianlai brings to the owner not only a means of transportation, but also a high-quality lifestyle. Tianlai extends the concept of "comfort" of the car, lands on the ground, draws a "rest" for the busy and high-pressure urban life, and brings the most comfortable car experience for car owners.

Ghost Bucket Car View: In the current B-class car market, the battle situation is constantly escalating. Especially after the luxury brand dimensionality reduction suppression and the surging new forces of car manufacturing, many opponents of the same level are eager to play the concept, catch up with the trend, and rush to the high-end. The most original comfort experience of the car is often overlooked. In fact, the brand does not have to be a high-end brand, and the product and experience are the core key points of the automobile brand. Dongfeng Nissan Tianlai, while pursuing youthfulness and intelligence, does a thorough job of car comfort, increases the comfort configuration through the evolution of quiet technology, brings consumers a more advanced car experience, and allows them to feel the quality of life on the car.

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