Author: Chu Yunwen
Triangle is the most stable figure in the plane. The term "iron triangle" derived from it is often used to describe the close and seamless relationship between the three. Inseparable states, such as "Iguka Butterfly" in "Naruto", Ace, Sabo, Luffy in "One Piece", etc. In fact, in addition to the relationship between characters, certain highlights of a car can also form a solid iron triangle relationship.
Technology Nissan, people, cars, life. This is a familiar Nissan slogan, and perhaps the favorite sentence of many Nissan fans. After all, it can reflect that their cars are famous for their "technical flow".
Practical "Technology Nissan"
Technology is the solution to any problem. The automobile industry is facing transformation all the time. As a Nissan brand that focuses on technology, how to stabilize itself in the market? status? Creating new technologies is the best way out.
People usually think that the electrification of vehicles is a transformation that has only started in recent years, but for Nissan, the relationship between internal combustion engines and electric motors seems to be complementary and constantly iterative, so whether it is the engine Whether it is technology or electric motor technology, the glorious moments left by Nissan can be seen on the historical timeline.
It took Nissan 80 years to go from absorbing Western power technology to building its own engines with leading technology. The 1960s was an important time point for Nissan. Previously, it used Austin's technology as a vehicle power source, and then began the development of independent power systems.
Nissan?VG20ET
C series, G series, A series, Y series, L series, E series, CA series and MA series engines have been unveiled one after another and are installed on different models. ; In 1983, the VG series engine launched by Nissan was Japan's first mass-produced V6 engine, breaking the history of Japanese car companies being unable to produce V6 engines.
RB26DETT
The subsequent FJ series inline four-cylinder engines and RB series inline six-cylinder engines have become the choice of many performance car enthusiasts due to their powerful power output characteristics. Among them is the RB26DETT launched in 1989. It was mounted on the SKYLINE GT-R and became a household name with the broadcast of "Initial D".
Since 1995, VQ series engines have been selected as Ward's top ten engines for 14 consecutive years due to their excellent smoothness, smooth power output, high economy and other features, and can appear in many luxury cars. It also marks that Nissan's power technology has truly entered the world's leading ranks, and paved the way for the emergence of the VC-Turbo super variable engine later.
Next, let’s take a look at Nissan’s technological development in the field of pure electric vehicles. As mentioned earlier, it didn’t just start developing electric vehicles in recent years. In 1947, Nissan launched its first The electric car Tama is equipped with a 4.5Ps motor and can reach a top speed of 34km/h.
Nissan?EV4-P
And in the 1970s, Nissan conducted a series of extremely stringent crash tests on the newly developed pure electric vehicle EV4-P. It can be said to have pioneered the crash test of pure electric vehicles. EV4-P uses a braking energy recovery system and a lightweight fiberglass body to achieve a cruising range of 302km. This data can be said to be at the mainstream level now.
Prairie Joy EV
In 1983, Nissan launched March EV, the world’s first pure electric product using an asynchronous motor; in 1996, Prairie Joy EV was The world's first and only pure electric vehicle equipped with cylindrical lithium batteries.
The new Nissan LEAF
By 2017, the technology of the new Nissan LEAF electric vehicle should be equipped with an electric powertrain system with higher energy efficiency, greater torque, and better power output. Powerful, its maximum power reaches 110kW, which is 38% higher than the previous generation Nissan LEAF, and its maximum torque reaches 320Nm, which is 26% higher, further improving the vehicle's acceleration.
The e-POWER system equipped with Nissan NOTE
At the 2018 Tokyo Motor Show, Nissan brought NOTE equipped with e-POWER smart charging technology. e-POWER Intelligent Charging Electric Technology" special small fuel engine evenly outputs power to the generator to generate electricity, and the electric energy is input into the battery and stored, and supplied to the motor to drive the wheels at any time.
The above various technological breakthroughs allow Nissan to compete with traditional fuel Both the automotive and pure electric vehicle fields have profound technological accumulation and reserves. The so-called "Technology Nissan" uses its own products and technologies to create industry benchmarks in the automotive field.
Self-development under the general trend. Beyond
Although electrification is a major trend in the future, Nissan has not stopped the research and development of internal combustion engines. The emergence of new technologies is not to "eliminate" the original technology, but to complement and complement each other. With continuous investment in R&D, Nissan has developed a technology triangle of "super-smart driving and comfort technology" in the field of fuel vehicles. Among them, the seventh-generation Teana is a masterpiece that integrates the most advanced technologies.
In 2018, the seventh-generation Teana was unveiled. In addition to the more powerful new generation of Nissan's global V-Motion design language, the most talked about is the iron triangle composed of "Super Intelligent Driving and Comfort Technology". It can be said that the VC-Turbo super variable engine embodies the wisdom of Nissan's power engineers in the past two decades.
The piston stroke is changed through the connecting rod mechanism
2.0TVC-Turbo super variable engine. The birth of the variable engine engine has gone through nearly 100 prototype designs, accumulated more than 300 patented technologies, and has undergone global testing with nearly 600 test vehicles, more than 30,000 hours of test bench testing, and more than 3 million kilometers of road testing. It has outstanding performance in terms of engine stability and durability. Achieving technological breakthroughs in terms of performance and processing technology
The compression ratio switches between 8:1 and 14:1
The VC-TURBO super variable engine is based on the traditional piston structure. Add a newly designed multi-link connection mechanism, use the control shaft to change the structure of the multi-link system, increase or decrease the piston stroke, and intelligently select between 8:1 and 14:1 according to the driver's intention and different working conditions. The best compression ratio solves the traditional contradiction between power and fuel consumption, achieving "the best of both worlds"
In the past 2019, the seventh-generation Teana VC-TURBO Super. Bianqing won the "Double Top Ten" honors, including: on November 4, 2019, it won the "China Heart" Top Ten Engine of 2019; on December 16, 2019, it won the 2020 Ward Top Ten Engine Award, which is worth mentioning. What’s remarkable is that this is the second consecutive year that Nissan has won this award.
Except for the power core, the seventh-generation Teana has continued the high-level standards of its predecessor in terms of comfort technology, and has also made specific changes in key configurations. Enhancements. For example, the new 3D?Multi-Layer ergonomic seats reduce driving fatigue by 30%; the double-layer soundproof glass double-absorbing soundproof material is upgraded, and the front windshield and side door windows are made of high-strength double-layer soundproof glass. At the same time, a variety of sound-absorbing and sound-insulating materials are added to many parts of the car body to block noise to the greatest extent.
Making cars smart
Speaking of making cars smart, in addition to giving the seventh-generation Teana a core that is "smarter than ordinary people", Nissan also has advanced technologies in intelligent driving. The achievements made. Intelligent driving is already the hottest topic in the automotive industry, and L2-level driving assistance systems are the entry standard in the mid-level car field.
Dongfeng Nissan Teana has proven its strength with the ProPILOT super intelligent driving system.
First of all, at the driving level, the ProPILOT super-intelligent driving system completes steering, acceleration, braking and other operations in fully automatic mode. It is the world's first assisted driving system that combines highway navigation driving and single-lane hands-off driving.
Nissan began the research and development of this type of technology as early as 1998, initially with road condition detection as its main purpose. After more than 20 years of accumulation of driving assistance technology, ProPILOT became the first mass-produced car equipped with The automatic driving assistance system on the car has achieved more than 320,000 kilometers of road testing and technical verification worldwide.
At the same time, Dongfeng Nissan Teana is equipped with the NISSAN i-SAFETY intelligent active safety system, which has: IEB pre-collision intelligent braking (dynamic pedestrian monitoring upgraded version), BSW lane change blind spot warning, CTA reversing vehicle side Early warning, IDA intelligent fatigue driving warning and other functions.
As for in-vehicle intelligent interconnection, all main models of Dongfeng Nissan have completed the interconnection layout. At present, the connected car platform has exceeded 1.1 million users. Nissan has joined forces with travel ecosystem partners such as China Unicom, Amap, iFlytek, Moji Weather, Kuwo Music, Alibaba Cloud, and Tencent. In the future, the connected car system will be iteratively upgraded every year to provide seamless digital services.
Changing the traditional car life
Super variable engine, super smart driving, and comfort technology are the technological iron triangle currently owned by Teana. Although this structure is stable enough, in the future, We also hope that this iron triangle will become sharper while being stable. How to achieve this? Still the same answer as before - new technology.
As mentioned earlier, the ProPILOT super intelligent driving system will also be the focus of Nissan's upgrades and iterations in the future. The current plan is: in 2020, three Dongfeng Nissan models will be equipped with ProPILOT super smart driving; in 2021, a new round of technology upgrades will be completed on the basis of the original super smart driving; by 2023, Nissan will realize its All car series are equipped with ProPILOT super intelligent driving, and the model level has reached 70, entering the era of comprehensive autonomous driving.
Nissan IMX brain-controlled concept car
In addition, Nissan is also developing Brain-to-Vehicle brain-controlled car technology. This system will allow the vehicle to recognize signals in the brain and use Faster speed is delivered to the vehicle; and Invisible-to-Visible technology allows consumers to experience holographic three-dimensional navigation, fully perceive and predict complex road conditions.
When we look at Nissan in the next few years from our current perspective, it is actually just like the original idea for the super variable engine in 1998. It took 20 years to realize Super Variable Engine, but it may not take that long to realize the ultimate form of ProPILOT super intelligent driving. It is foreseeable that the next three to four years will be the highlight moment for Nissan, which is driven by technology. END
This article comes from the author of Autohome Chejiahao and does not represent the views and positions of Autohome.