【Auto Market Bai Xiaosheng】 Pay attention to new energy vehicles, and the mileage must be an unavoidable topic. With the continuous iteration of domestic new energy technology, the cruising range of 500 km + has become the "standard configuration" of pure electric vehicles in the price band of 150,000-300,000, but it is difficult to achieve this data in the actual use environment, so the measured endurance and endurance of a car have become the most real and important data to measure a pure electric.
01
Smooth patrol achievement actual test endurance king
Not long ago in Hainan, CCPC under the China Automobile Research Institute held a china new energy vehicle endurance real rate challenge (WLTC) for the real endurance of new energy vehicles, through the simulation of the WLTC test method, under the comprehensive road conditions, according to the specified duration of continuous driving at different speeds, small cycles and large cycles, and finally in multiple cycles, the power will be dried up, and the mileage closest to the real working conditions in China will be obtained.
The four trams participating in this competition are also very interesting, both chevrolet Chang tour as a joint venture brand, as well as the independent brand GAC Aian S, and the other two are Xiaopeng P7 and Nezha U from the new forces to build cars, which can be said to include the various factions of new energy vehicles in the current mainstream range of 100,000 to 300,000, and their official mileage is at the level of 500+.
The temperature on the day of the test was 20-27 degrees Celsius, which can be said to be the most suitable environment for new energy vehicles, and the final result can be said to be unexpected and reasonable. Unexpectedly, it is mainly because the final mileage of the Xiaopeng P7, which has the highest official endurance, is only the 3rd, while the real endurance rate is only 67.08%; Logically, mainly because the joint venture brand is generally good at "reverse false label" of the mileage, so Chevrolet Patrol won the championship with a measured 399 kilometers and a real mileage rate of 77.03%, which did not surprise me.
02
Why the tour is closer to reality
Seeing this, you may ask, obviously the official mileage is almost the same, why the patrol will be 20 kilometers higher than the second place, the reason is still because of the difference in concept and technical accumulation.
If you have carefully looked at the driving computer of Chang patrol and other models, you will find that the endurance numbers after the start of other cars are similar to the official endurance numbers, but the number of chang cruises is much lower, because the patrol is calculated according to the real-time energy consumption, and other models are calculated through the best energy consumption in order to look better.
When the vehicle is really on the road, you will find that due to the continuous decline in the real-time energy consumption of the patrol, the mileage is driving more and more, while other models, the mileage plummets, and even dozens of dozens of downs in high-speed road conditions, the final result is the nest without warning. This situation, Chevrolet Tour design at the beginning, has been vigorously avoided by the designer. After all, good-looking numbers can only be used from Hi, but the inexplicable nest on the road is really annoying.
In addition to the difference in concept, General Motors, which has 27 years of experience in R&D and manufacturing in the field of new energy, naturally uses black technology in the patrol.
In terms of three electricity, the high-performance ternary lithium battery equipped by Chevrolet Chang patrol has excellent charging and discharging capabilities, and the intelligent water circulation temperature control system allows it to always maintain the best working environment. The electric drive system is composed of a permanent magnet synchronous motor with a maximum power of 130 kilowatts and a maximum torque of 265 Nm with a high-precision single-stage gearbox, and its transmission efficiency is as high as 96%, which also allows the maximum speed of the patrol to reach 170 km / h, comparable to the Xiaopeng P7 equipped with dual motors.
On the electronic control system, Chang patrol matches the three kinetic energy recovery modes of lightweight free recycling, medium high efficiency recovery and strong empowerment recovery and three driving modes of ordinary, sports and single pedal. Among them, the blended regen brake energy recovery system used by Changshuo can intelligently distribute mechanical brakes and electric brakes, and maximize the conversion of the vehicle's kinetic energy into electrical energy and storage into batteries, thereby effectively increasing the overall cruising range.
It is under the blessing of a number of black technologies that Chang patrol has an ultra-low energy consumption of 12.6 kWh as low as 100 kilometers. The quality of high performance and low energy consumption, coupled with a driving computer that allows the driver to grasp the real endurance data at all times, explains why chevrolet cruise can drive closer to the official mileage from the subjective and objective aspects.
03
There is also safety on top of the battery life
For electric vehicles, in addition to battery life, what do you care more about? I think most people think the same thing as mine, which is security. Remember when the joint venture brand just launched a new energy vehicle, the weak mileage? Are they not wanting to? Of course not, but they unanimously chose security.
Nowadays, with the development of the new energy automobile industry, technology is developing rapidly, so we can see a large-capacity ternary lithium battery on a compact new energy vehicle like Chevrolet. It should be known that the battery pack it is equipped with is developed in accordance with the general global safety standards, passed the 7-fold 13-class limit detection such as puncture, extrusion, fire, overcharge, short circuit, etc., and simulated collision, fall, impact and other scenario-based tests, and finally can be loaded on the car, so that the rigorous attitude has always been the basis for the joint venture brand to be more trusted.
In addition to the safety of Sandian itself, Chevrolet Patrol is also equipped with a Bosch ESP 9.3 electronic stability control system with 17 safety subsystems, as well as a complete active safety system including forward collision warning, lane departure warning, side blind spot alarm, collision mitigation and automatic parking, plus more than 66.82% of the high-strength steel, ultra-high-strength steel and thermoformed steel in the whole vehicle, its safety is generally the same as that of the fuel vehicle we are familiar with.
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summary
Since the launch of EV1 in 1996, GM has accumulated 27 years of experience in tram research and development, which undoubtedly makes this century-old automobile company have the background of challenging new forces in today's new energy tide. Therefore, Chevrolet's top spot in this real endurance challenge is only a shot of this veteran joint venture car company that has relied on and insisted on. It is believed that with the layout of GM's new Aotene platform, the Chevrolet brand will also give birth to more and more high-quality new energy products, and we are also looking forward to their arrival.