With the rise in oil prices, pure electric vehicles have become the first product that many people consider when changing cars. However, with the increase in the market share of new energy models, there are many problems that have been exposed, such as endurance shrinkage, power locking, etc., which makes many people wonder how to avoid lightning when buying new energy vehicles!
Today, I recommend Chevrolet Chang tour, which won the first place in the endurance reality challenge in the recently held 2022 CPCC China New Energy Vehicle Competition. As a CCPC China mass production car performance competition with the reputation of the "Olympic Games" in the automotive industry, it has been held for seven sessions now, and has a good reputation and authority in the domestic automotive industry.
At the same time, as an important part of the competition format, for the new energy model endurance realism challenge, the real endurance test is carried out on the normal road with the WLTC working conditions closest to the actual application scenario. Chevrolet Cruises won the first place in the 100,000-300,000 new energy model group with an excellent result of 399km measured cruising range and 77.03% cruising accuracy in the actual road endurance realism challenge (WLTC condition method).
The Nezha U PRO, Ean S Plus, Xiaopeng P7, etc., which competed with them, had a real endurance rate of 75.80%, 69.02% and 67.08% respectively, and the measured endurance was 379km, 352km and 377km.
So, in today's fierce competition, why can Chevrolet Patrol thrive?
#27年研发经验, safe and efficient use of the car with peace of mind
GM has 27 years of R & D and manufacturing experience in the field of new energy, as Chevrolet's first pure electric intercity coupe, Chang patrol using high-performance ternary lithium battery pack, capacity of 61.1kWh, pure electric mileage up to 518km, and 100 km power consumption is only 12.6kWh, in the same level of models, its average power consumption and kWh (per kilowatt hours of electricity) are at an excellent level.
Chevrolet Patrol's CRUI has a cruising range of 518km, a measured endurance of 399km under WLTC conditions, a true endurance rate of 77.03%, and a power consumption of only 12.6kWh/100km per 100 km. Based on the WLTC battery life calculation, it is concluded that the kWhack mileage of Chevrolet's patrol has reached 7.9km. Whether it is the same class or compared to the high-level model, in terms of power mileage, Chevrolet's performance is commendable.
First of all, let's take a look at the best-selling Aeon Y at the same level, its average power consumption is as high as 28kWh/100km, and the average power consumption of the higher positioning Volkswagen ID.4 series is basically maintained at about 20.4kWh/100km. As can be seen only in the average power consumption section, Chevrolet's three-electric system is very efficient.
So how does the kWh mileage of other pure electric models perform? For example, the standard versions of the current Tesla Model S and Model X have a range of 6.6km and 5.8km, respectively, and a BYDHan EV with a kWh of 7.8km. The above data is calculated based on official data, if it is calculated based on real battery life, then the electric mileage may be lower.
In addition, battery safety and performance are definitely worthy of our attention.
We all know that lithium batteries are very sensitive to temperature, and being able to control the temperature of the battery pack is crucial for the endurance reliability and safety of pure electric vehicles. At the time of development, Chevrolet Patrol was developed in accordance with GM's global safety standards and ensured the safety of the car in real time through 7 major safety measures.
Among them, the intelligent water circulation temperature control system, aerospace and nano temperature control materials and balanced pressure relief valves are used to ensure the safety of the battery cell temperature, so that the cell temperature is normally working between -20 °C and 55 °C. And can withstand 1200 °C high temperature, reduce the impact of low temperature and high temperature environment, resulting in battery life reduction. It should be noted that Chevrolet Changzhan is the only manufacturer in china that uses aerogel insulation between batteries in pure electric vehicle models, and it is really very careful.
High-strength protection frame, high-voltage electric system a number of double insurance design structure, as well as battery status all-weather monitoring + vehicle and cloud dual alarm system, through 100% high-strength steel frame, and double dual independent design safety valve, in the physical and software parts of the all-round protection of the car safety.
Safety enhancement verification is to carry out extreme tests such as puncture, extrusion, fire, overcharge, and short circuit of the battery, and on this basis, rails, drops, and lateral column collision tests that are higher than the requirements of the regulations are added to verify the safety of the battery system in an all-round way.
#智能三电科技 for a perfect car experience
The driving quality of pure electric vehicles is closely related to the three-electric system. Chevrolet Chang patrol adopts mainstream permanent magnet synchronous motor + high-precision single-stage gearbox, and the transmission efficiency is as high as 96%. Its motor has a maximum power of 130 kW. In order to make the car experience perfectly comparable to that of fuel vehicles and reduce the user's learning time, the low power and high torque strategy is adopted, and the maximum speed can reach 170 km per hour.
Here is just a popular science, many people have doubts about the relationship between permanent magnet synchronous motors and asynchronous AC motors. First, the rotor of an asynchronous AC motor needs to be energized before it can rotate, and the rotation speed will always be slower than the rotation speed of the stator. This also leads to a low power density and high power consumption at the same power. If you want high power, you need to increase the volume of the motor, which is completely out of line with our needs in a family car with little land.
In contrast, the rotor of a permanent magnet synchronous motor is made of permanent magnet material and carries magnetic force itself. It is smaller and lighter at the same power, and most importantly, the power consumption is lower than that of the asynchronous AC motor at the same power. Although the raw materials such as neodymium, iron and boron required in permanent magnet synchronous motors are expensive, resulting in higher costs. However, due to the abundant rare earth resources in the mainland and the large output of permanent magnet materials, the most suitable and efficient motor for family cars is naturally a permanent magnet synchronous motor.
Compared with some brand products that force users to use strong kinetic energy recovery, Chevrolet Chang patrol is equipped with blended regen brake energy recovery system, which can intelligently distribute mechanical brakes and electric brakes and adjust them to a perfect state. The system is divided into 3 gears of energy recovery mode, which is lightweight free recovery, perfectly close to the driving experience of fuel vehicles, with a glide feeling with a gear, for users who are new to pure electric vehicle models, there is no learning cost and pressure. The medium-efficiency recovery mode has the unique deceleration and energy recovery efficiency of the pure electric model, and the moderate energy recovery is carried out while ensuring the comfortable driving characteristics. The powerful energy recovery mode will recover the energy loss during daily driving in the most efficient way and reduce the conversion into electricity.
In addition, if you don't want to bother to adjust, Chevrolet's normal, sporty, single pedal three driving modes can ensure that the driver can quickly switch between efficient energy recovery, steady and comfortable driving and super power acceleration of the vehicle. Feel free to move your heart and enjoy a happy driving experience.
#前卫造型 + intelligent technology, enjoy the transcendent life
In addition to the safety and security of pure electric vehicles, the three-electric system is intelligent and efficient enough to give users a comfortable car experience. Of course, having these is not enough to impress consumers, after all, in this society where "appearance" is high or low, there is no full score of "appearance", how dare to accompany Jun!
Chevrolet Cruise fully introduced the sports coupe design style of the FNR-X concept car, which is not a hatchback in the traditional sense from the perspective of traditional styling design. Through its sharp body lines and the thick guard plate design at the bottom of the surrounding area, individuals prefer to call it an "all-round station wagon". In particular, the front face skyline design, drawing on the aesthetic design concept of vitality, integrating light-sensitive LED headlights and star-ring LED daytime running lights, and through the optimization of the intelligently selected vein grille and the combination of aerodynamic enveloping kits, the vehicle wind resistance system is only 0.34cd, which perfectly integrates excellent design with ultra-low energy consumption.
At the same time, Chevrolet Patrol also uses a variety of high-performance acoustic materials to fully optimize the vehicle wind noise, tire noise and power modeling, etc., to create a quiet and comfortable driving environment for users, comfortable not only for one person, but also for the whole family.
The new generation of MyLink+ intelligent vehicle interconnection system and the new generation of OnStar intelligent vehicle connection system bring users a safe and convenient intelligent car life. The comprehensively upgraded "second engine" integrates the upgraded version of iFLYTEK's voice system, which greatly improves the recognition rate, accuracy and response performance of the vehicle intelligent voice interaction system, and fully meets the needs of users for scenarios such as eating, drinking, travel navigation, knowledge quizzes, and chat music.
The new generation of Anji intelligent vehicle connection system has services such as remote control, automatic collision assistance, emergency rescue assistance, 4G LTE wireless hotspot, hands-free telephone and vehicle condition monitoring. At the same time, the mobile phone virtual car key can be authorized through the OnStar APP, after opening the Bluetooth function, even if you forget to carry the car key, you can still start the vehicle driving, and can be authorized by the mobile phone to family and friends for emergency use, so that it is convenient, safe and intimate car life.
summary:
With the layout of the new energy market in various models, Chevrolet initially did not rush to action, but continued to cultivate internal strength, combined with GM's 27 years of manufacturing experience in the field of new energy, as well as strong research and development capabilities, to comprehensively and sub-polish the product. Nowadays, Chevrolet Chang patrols in the three-electric system, high efficiency and low consumption, design and configuration, intelligent technology and other parts of the comprehensive evolution, and in battery safety, body safety in depth thinking, combined with the strong advantages of General Motors to present it in front of our eyes.
In addition, in the gradual rise in oil prices, new energy model safety problems frequently out today, Chevrolet Chang patrol with the 2022 CPCC China New Energy Vehicle Competition 100,000-300,000 real endurance of the first place excellent results, the strength of those playing word games of the products.
As the saying goes, integrity has no weight, if it is the weight of a feather, it has the weight of Tarzan.