In recent years, it is in the inflection point of the transformation and transformation of the automotive industry, and the automobile technology is not too much to describe it by leaps and bounds, such as lidar, high-end assisted driving, more energy-efficient hybrid systems, safer battery technology and other new products have been launched in the past two years, so that many car owners have found that it seems that a new car just bought is outdated in a short time, which is especially obvious on electric vehicles. So in order to walk at the forefront of the times and be a forward-looking car buyer, we must understand what new technologies are going to be mass-produced next year. I will divide this series into two parts, of which the first part will introduce the new technology of independent brands, and the next part will introduce the new technology of non-independent brands.
A: Pure electric vehicles with a range of more than 1000km are coming?
Not long ago GAC Aian new model AION LX Plus officially unveiled, the biggest highlight of the new car is the official nominal that the car has a range of 1008 kilometers (CLTC working conditions), from the data point of view, the capacity of this battery is 144.4kWh, the current Weilai car's latest battery is only 100kWh, and Tesla Model 3 long endurance is only 75kWh, so this endurance although the actual application of a 30% discount, there is also about 700 years of endurance, This is a rare ultra-long endurance model on the market, and the secret to achieving more than 1000km of endurance lies in the silicon anode technology of the AION LX Plus battery.
Generally speaking, the negative electrode of lithium batteries is graphite, and in order to improve the lithium ion storage capacity of the negative electrode, the battery used by GAC has added silicon to the negative electrode, and the lithium ion storage capacity of the negative electrode of the battery has increased by 9 times (official data). This means that the energy density of the battery has been greatly improved, that is, the same volume, the battery can store more electrical energy. This is also why the same size of the car, the same size of the interior space, replaced with a new battery to follow up the flight can get such a big boost.
At the same time, in order to solve the problem of battery easy aging and endurance decline, GAC's silicon anode battery adopts nano-composite silicon technology, binder technology with self-healing function and gradient composite coating technology to reduce swelling and reduce silicon and electrolyte contact.
Second: The cost of the car is comparable to the hybrid SUV of the electric car?
At the end of 2021, the Geely Xingyue L oil-electric hybrid version will also be officially released and pre-sold, and the new car will be delivered in the first quarter of 2022. The new car adopts a new hybrid system Thor God Intelligence Hi · X, according to the official introduction, this set of hybrid paper parameters can be said to be the current Ministry of Industry and Information Technology's lowest fuel consumption of hybrid vehicles, NEDC fuel consumption as low as 3.6L/ 100km, than BYD dmi before the official 3.8L 100 km fuel consumption is 0.2 liters / 100km lower. Although in the era when the No. 92 gasoline rose to 7 yuan / liter, the 100 kilometers were only 25 yuan, which was in line with the cost of the car used for fast charging and charging of electric vehicles.
According to the official introduction, the thermal efficiency of the 1.5L turbocharged engine of the Geely Geely Xingyue L oil-electric hybrid version is as high as 43.32%, surpassing the previous BYD Xiaoyun 1.5L naturally aspirated engine with a world record of 43.04%, refreshing the world's first thermal efficiency data.
At the same time, Geely released a total of two hybrid gearboxes, namely DHT and DHT Pro, the main performance indicators of the two include: pure electricity, series, parallel drive and energy recovery four modes can be realized. We can see from the picture of the press conference. The DHT's main structure consists of two sets of planetary gear sets, a design that is more similar to the kind of technology that Toyota and GM have.
The difference between DHT and DHT Pro is that DHT Pro adds three gear transmissions on the basis of DHT, which can be understood as adding a three-speed transmission, which is similar to the GS450h introduced by Lexus before adding a two-speed transmission on the THS system and the LC500h adding four gears to the THS.
Three: BYD improves the energy density of the blade battery, and the endurance reaches 700km
In the face of the challenge of strong enemies, although BYD is far ahead in the domestic new energy field with DM-i and blade batteries, it is not idle. From the perspective of BYD's listing plan, next year BYD Tang EV will launch a replacement model, the new car is equipped with blade batteries, although they are called blade batteries, and the blade batteries used by Han, Dolphin, and Qin look exactly the same, but if you look carefully, you will find that BYD has quietly upgraded the blade battery. It is understood that the energy density of the blade battery equipped with the existing model is 140wh/kg, while the new Tang EV battery pack is increased to 150wh/kg. In fact, this improvement in our view is not large, put on the ternary lithium battery, this amplitude of the increase is still relatively easy, but for lithium iron phosphate batteries is undoubtedly a technical breakthrough.
Due to the decline of new energy subsidies, many car companies have no longer pursued battery energy density too much, it is not difficult to see some 200wh/kg batteries before, but at present, from the second batch of recommended catalog models this year, we can see that the energy density of the ternary lithium pool is also controlled in the more conservative range of 150-180kw / kg, and BYD's lithium iron phosphate battery has achieved 150kw / kg, which is not weak compared to the ternary lithium pool. Compared with the same lithium iron phosphate battery, the blade battery is undoubtedly the highest energy density battery product in the industry.
At the same time, after more than a year of verification, the reliability and product strength of the blade battery have been affirmed, and now BYD has upgraded it, which is undoubtedly more competitive. It is speculated that next year, BYD's high-energy density blade battery will be installed in the new EV models.
Four: Faster and more economical Weilai second-generation electric drive system is coming!
As we all know, the technical self-research of Weilai Automobile is one of the highlights of its brand, because the electric control system of the motor adopts full-stack self-research, and the node of the replacement will be different from the car companies that adopt supplier products. According to the official announcement, the NIO ET7, which will be delivered next year, will be equipped with a new generation of electric drive system, the total power of this new system can reach 480kW, and the acceleration of 100 kilometers takes only 3.9 seconds, and the comprehensive loss of the electronic control system is reduced by 4% to 6% due to the use of silicon carbide modules.
In addition to the upgrade of the control module of the 180kW motor, the module of the induction induction asynchronous motor, that is, the 300 kW IGBT, has also been upgraded, from the previous 900A to 960A, and the current capacity has been improved. Overall, NIO's second-generation electric drive system optimizes motor efficiency, improves the speed ratio, and upgrades and updates to the control module, a series of measures that allow the vehicle not only to get a significant increase in power, but also to reduce energy consumption.
Five: Xiaopeng City NGP, the city is no longer afraid to see the wrong navigation?
I believe that friends who have a little understanding of Xiaopeng Automobile must be familiar with NGP, its full name is Navigation Guided Pilot, automatic navigation assisted driving system, this function helps drivers reduce driving fatigue on the road, more advanced than the previous adaptive cruise ACC is that this NGP function can automatically assist drivers to drive according to navigation information, that is to say, it can automatically follow the car, change lanes, and automatically enter and exit the highway. The NGP that was previously on the P7 can only be used on high speeds, while the NGP that will be pushed next year is used by the city. The biggest difficulty in urban use is the need to deal with more complex road conditions, such as greater vehicle density, more pedestrians, bicycles, red and green start and stop, and so on.
Due to the increase in the number of lidar, the new car Xiaopeng P5 released in 2021 became the first model to use urban NGP, and it is understood that the P5's urban NGP will be pushed by OTA in the second quarter of 2022. But the question is, in such a complex road condition in the city, do we really dare to rely on the pilot function?
It can be seen from the official news that the HaP lidar of Livox lanvo used by Xiaopeng P5, which is also the first model to use lidar in China, has a clearer perception of road condition information. However, HAP lidar is currently unable to effectively identify road signs, such as split lane lines, various guiding arrows, and cannot distinguish speed limit signs and traffic light status information. Therefore, P5 still needs a multi-sensor fusion driver assistance solution, and the various sensors need to work complementarily.
But I have to say that the city ngp is a function that is a hundred times more complex than the above two functions, so how this software algorithm does is the key, we look forward to further evaluation and verification of the P5 city NGP.
The rapid development of independent brands in recent years has also made my kind of topics rich in material, although there are only 5 technical inventory in the article, but this is only the author's content in order to consider the length of the article. In a large number of new technologies, it is not difficult to see why the models of independent brands have become the first choice in the minds of many consumers in recent years, because of richer configurations, larger space, more beautiful designs and more advanced technologies. I believe that one day, these brands will not only be welcomed by everyone in China, but even go abroad and be recognized by consumers around the world.
Oh, yes, there are already a lot of models out of the country.