Triangle is the most stable figure in the plane, and the word "iron triangle" derived from it is often used to describe the inseparable state among them, such as "pig and butterfly" in Naruto, Ace, Saab and One Piece. In fact, in addition to the relationship between people, some highlights of a car can also form a solid iron triangle relationship.
Nissan technology, people, cars, life. This is a well-known Nissan advertising slogan, and it may also be the favorite sentence of many Nissan fans. After all, it can show that their car is famous for its "technical flow".
Practical "Technology Nissan"
Technology is the solution to any problem, and the automobile industry is facing transformation all the time. As the main technology, how can Nissan brand stabilize its market position? Creating new technology is the best way out.
It is generally believed that the electrification of vehicles began in recent years, but for Nissan, the relationship between internal combustion engine and motor seems to be complementary and iterative, so both engine technology and motor technology can see the brilliant moments left by Nissan on the historical timeline.
It took Nissan 80 years from absorbing western power technology to building its own engine with leading technology. The 1960s was an important time node for Nissan. Prior to this, Austin's technology was used as a vehicle power source, and then the research and development of autonomous power system began.
Nissan? VG20ET
C-series, G-series, A-series, Y-series, L-series, E-series, CA-series and MA-series engines appeared one after another, and were mounted on different models. 1983, the VG series engine launched by Nissan was the first mass-produced V6 engine in Japan, which broke the history that Japanese car companies could not produce V6 engines.
RB26DETT
After that, FJ series inline four-cylinder engine and RB series inline six-cylinder engine became the choice of many performance car enthusiasts because of their strong power output characteristics. The RB26DETT introduced by 1989 is installed in SKYLINE? With the broadcast of the initial d, it became a household name on GT-R.
Since 1995, VQ series engines have been selected as one of Ward's top ten engines for 14 years for their excellent ride comfort, non-procrastinating power output and high economy. Its appearance in many luxury cars also marks that Nissan's power technology has truly entered the world's leading ranks, paving the way for the emergence of VC-Turbo super-variable engines in the future.
Next, let's take a look at Nissan's technological development in the field of pure electricity. As mentioned earlier, it is not only in recent years that it began to develop electric vehicles. 1947, Nissan launched the first electric car Tama, equipped with a 4.5Ps motor, with a top speed of 34 km/h.
Nissan? EV4-P
And in 1970s, Nissan conducted a series of extremely strict crash tests on the newly developed pure electric vehicle EV4-P, which can be said to be the first of its kind. Through the application of braking energy recovery system and lightweight FRP body, EV4-P has a cruising range of 302km, which can also be regarded as the mainstream level at present.
Grassland? joy？ electric vehicle
1983, Nissan launched in March? EV is the world's first pure electric product with asynchronous motor. 1996, grassland? joy？ EV is the world's first and only pure electric vehicle with cylindrical lithium battery.
New Nissan leaf wind
By 20 17, the new Nissan Leaf electric vehicle technology should be equipped with an electric powertrain system with higher energy efficiency, greater torque and stronger power output. The maximum power 1 10kW is 38% higher than that of the previous generation Nissan Leaf, and the maximum torque is 320Nm, which is 26% higher, thus further improving the vehicle acceleration.
E-POWER system on Nissan NOTE
20 18, Tokyo Auto Show, Nissan brought NOTE equipped with e-POWER intelligent charging technology. E-POWER intelligent charging technology "The specially-made small fuel engine evenly outputs power to generate electricity for the generator, and the electric energy is input into the battery for storage, which can be supplied to the motor to drive the wheels at any time."
The above technological breakthroughs have enabled Nissan to have profound technical accumulation and reserves in the fields of traditional fuel vehicles and pure electric vehicles. The so-called "technology Nissan" has set an industry benchmark in the automotive field with its own products and technologies.
Self-transcendence under the general trend
Although electrification is the general trend in the future, Nissan has not stopped the research and development of internal combustion engines. The emergence of new technology is not to "destroy" the original technology, but to complement and make up for each other. Through continuous R&D investment, Nissan has formed a technical triangle of "super variable engine+super intelligent driving+comfort technology" in the field of fuel vehicles, among which the seventh generation of Teana is the masterpiece of the most advanced technology.
In 20 18, the seventh generation of Teana appeared. In addition to the more aggressive new generation Nissan global V-Motion design language, the most concerned is the iron triangle combination of "super variable engine+super intelligent driving+comfort technology". Among them, VC-Turbo super-variable engine can be said to condense the wisdom of Nissan power engineers for 20 years.
The change of piston stroke is realized by connecting rod mechanism.
2.0 The birth of the turbo-engine has experienced nearly 65,438+000 prototype designs, accumulated more than 300 patented technologies, and achieved technological breakthroughs in engine stability, durability and processing technology. It has been tested by nearly 600 test vehicles around the world, more than 30,000 hours of bench test and more than 3 million kilometers of road test.
The compression ratio is switched from 8: 1 to 14: 1.
VC-TURBO Hypervariable Engine is a newly designed multi-link connecting mechanism added to the traditional piston structure, and the structure of multi-link system is changed by controlling the rotating shaft, thus increasing or decreasing the piston stroke. According to the driver's intention and different working conditions, the optimal compression ratio of 8: 1 to 14: 1 is intelligently selected, which solves the contradiction between traditional power and fuel consumption and realizes "fish and bear's paw"
In the past 20 19, the seventh-generation Tianzhu VC-TURBO super-variable engine won the honor of "Double Top Ten", among which: 2065438+065438+1October 4th 20 19 "China Heart" Top Ten Engine; 20 19 12 16 won the 2020 ward top ten engine award. It is worth mentioning that this is the second consecutive year that Nissan has won this honor.
In addition to the power core, the seventh-generation Teana continues the high level of the previous work in terms of comfort technology, and has also made specific enhancements in key configurations. Like the new 3D? Multi-layer ergonomic chair reduces driving fatigue by 30%; Double sound insulation glass+double sound-absorbing and sound-insulating material upgrade. The front windshield and side doors and windows adopt high-strength double-layer sound insulation glass. At the same time, various sound-absorbing and sound-insulating materials are added to the car body to block noise to the greatest extent.
Make cars intelligent
When it comes to making cars smarter, Nissan has made great achievements in intelligent driving besides making the seventh generation Teana have the core of "intelligence different from ordinary people". Intelligent driving has become the hottest topic in the automobile industry, and L2 driver assistance system is the access standard in the field of intermediate cars.
Dongfeng Nissan Teana proved its strength with ProPILOT super intelligent driving system. First of all, on the driving level, ProPILOT super intelligent driving system completes steering, acceleration and braking in a fully automatic mode, which is the first auxiliary driving system in the world that combines expressway navigation driving with one-lane hands-free driving.
Nissan started the research and development of this technology as early as 1998. At first, it was mainly aimed at road condition detection. After more than 20 years of accumulation of driver assistance technology, ProPILOT Super Intelligent Driving has become the first automatic driver assistance system mounted on production vehicles, and has achieved more than 320,000 kilometers of road testing and technical verification worldwide.
At the same time, Dongfeng Nissan Tianzhu is equipped with Nissan? I-SAFETY intelligent active safety system has the following functions: IEB pre-collision intelligent braking (dynamic pedestrian monitoring upgrade), BSW lane change blind zone early warning, CTA reversing vehicle side early warning, IDA intelligent fatigue driving early warning and so on.
As for the intelligent interconnection in the car, the main models of Dongfeng Nissan have completed the network layout. At present, the car-linked platform has exceeded 165438+ one million users. Nissan cooperates with China Unicom, Gaode Map, Iflytek, Ink Weather, Cool Music, Alibaba Cloud, Tencent and other travel ecosystem partners. In the future, the annual iterative upgrade of the car coupling system will be realized to provide seamless digital services.
Change the traditional car life
Supervariable engine, super intelligent driving and comfortable technology are the technical iron triangle that Teana currently has. Although this structure is stable enough, in the future, we also hope that this iron triangle will become sharper after stability. How to achieve it? Still the same answer as before-new technology.
As mentioned above, the ProPILOT super intelligent driving system will also be the focus of Nissan's future upgrade iteration. The current plan is: in 2020, there will be three Dongfeng Nissan models equipped with ProPILOT super intelligent driving; 202 1 will complete a new round of technical upgrade on the basis of the original super intelligent driving; By 2023, Nissan will realize that its entire car series will be equipped with ProPILOT super intelligent driving, and the vehicle level will reach 70%, entering the era of full automatic driving.
Nissan? IMX brain control concept car
In addition, Nissan is also developing Brain-to-Vehicle brain-controlled vehicle technology, which will allow vehicles to recognize signals in their brains and transmit them to vehicles at a faster speed; Invisible and visible technology allows consumers to experience holographic stereo navigation and comprehensively perceive and predict complex road conditions.
We look at Nissan in the next few years from the current perspective, which is actually like the original idea of the hypervariant engine in 1998. It took 20 years to realize the super-variable engine, but it may not take so long to realize the ultimate form of ProPILOT's super-intelligent driving. It can be predicted that the next three to four years will be Nissan's technology-led highlight moment. end
This article comes from car home, the author of the car manufacturer, and does not represent car home's position.