Avant-garde design, scientific and technological configuration, low car cost, policy support, pure tram seems to have become a "fragrant food", but the authenticity of the endurance has always been criticized. As a result, the event group of the CCPC Automobile Performance Challenge List under China Automobile recently conducted the most stringent cross-evaluation of several mainstream pure electric vehicles according to the "endurance reality" of electric vehicles. The horizontal evaluation test is carried out on the actual road using WLTC working conditions, and the list has been released, with Chevrolet Chang patrol ranking first, Nezha U PRO, GAC Aeon S Plus ranking second and third, and Xiaopeng P7 at the bottom.
Brand, sales, status? Why did you choose to test these 4 models
In this big horizontal evaluation, according to the three categories of joint venture, autonomy and new forces, the participating models were selected, of which 1 joint venture model, 1 independent model, and 2 new force models were selected because of the strong momentum. In terms of endurance, the official endurance of these 4 models is in the early 500km.
Joint venture model: Chevrolet Cruise (official cruising range 518km)
GM's electrification history has a long history, the world's first pure electric manned lunar car was developed by GM General Motors, the world's first mass-produced pure electric car - EV1 is also manufactured by General Motors, and the Chevrolet range extender hybrid sedan Volanda, which was listed in China in 2012, is at the forefront of the joint venture. Whether it is the brand technical background or the amount of ownership in China, Chevrolet Chang patrol is the best representative of the joint venture pure electricity.
Autonomous model: GAC Aean S Plus (official cruising range 510km)
GAC Aean S Plus with its young design, rich technology configuration, and cost-effective, quite popular with consumers, in recent years GAC Eian continues to exert efforts, a variety of models are directly hit the heart of consumers, Eian S Plus monthly sales is the best proof.
Representative models of the new forces: Xiaopeng P7 (official mileage 562km), Nezha U PRO (official mileage 500km)
Among the new forces, xiaopeng P7 is a benchmark model in China, and its avant-garde design, scientific and technological concept and intelligent assisted driving technology have absolute competitiveness at the same level. In the 150,000 yuan autonomous compact SUV, the highlight of the Nezha U PRO is that it has a variety of novel technology configurations, such as transparent A-pillars, and the price is also very attractive to young people.
Surpass your peers and do the most universal pure electric endurance road test
Many media have conducted endurance tests on these 4 pure trams, but the limit tests of various media, because of the environment, working conditions, road conditions, and test methods, consumers can not get a good reference. So, this time we want to bring a most informative road test - testing in the actual road with WLTC conditions! This is also the first time in the country!
WLTC working conditions are the closest to the real working conditions in China's endurance test, with universality, the Ministry of Industry and Information Technology announced that before 2025, the traditional energy passenger cars, plug-in hybrid electric passenger car test conditions will be switched from NEDC to WLTC. WLTC's test method is divided into four parts: low speed, medium speed, high speed and ultra high speed, and the maximum speed reaches 131.3km/h, which will be more in line with daily car habits, and the rolling resistance, gear, weight and other factors of the vehicle are integrated into the test.
This time we will leave the bench and drive on the actual road according to the WLTC conditions until the vehicle loses power and stops exercising, compared to the bench test in the laboratory, the actual road test will definitely better reflect the actual mileage of the five models. In order to ensure the professionalism of the test, this time our endurance reality challenge is also joint with the China Automobile Center, which is executed by professional drivers and referees of the CCPC China New Energy Automobile Competition, and the professionalism is "leveraged". Including this challenge site, the temperature of 20-27 degrees Celsius in Changjiang City in February was also selected, which perfectly met the soaking environment under WTC conditions.
To obtain an outstanding endurance deviation rate, behind the smooth patrol is the hard technical strength
It can be seen from the list that due to the difference in the background and history of car manufacturing, whether it is a joint venture brand, an independent brand or a new force in car manufacturing, it is uneven in terms of endurance performance. Chevrolet Changxing can come out on top, and its joint venture brand identity and Three Electric Technology are particularly important. As mentioned above, Chevrolet has a deep car-making heritage, with 26 years of pure electric car manufacturing experience, compared with its own brands and new car-making forces, the old joint venture brand naturally has an advantageous foundation in research and development technology.
Chang patrol's intelligent three-electric technology is very strong, the front permanent magnet synchronous motor from Huayu, the maximum power of 110kW, the maximum torque of 350N·m, the official 100 km power consumption as low as 12.6kW·h, the power performance is located in the upper reaches of the same level, can be described as high efficiency and energy saving. The 52.5kWh ternary lithium battery pack comes from the Ningde era, the energy density reaches 140Wh/kg, the NCM523 square battery cell used has better thermal stability and capacity retention rate, focusing on reliability, equipped with intelligent water circulation temperature control system, always provides a suitable working temperature for the battery, which can effectively reduce the mileage attenuation.
In fact, Changshuo can have such a solid endurance performance, among which the blended regen brake energy recovery system is indispensable, which is a technology that many pure trams do not have. It can intelligently distribute mechanical brakes and electric brakes, when the driver gently presses the brake pedal, the braking force is all provided by the motor back-drag, maximizing the kinetic energy of the vehicle, converted into electrical energy storage to the battery pack, to avoid waste of energy. Mechanical braking intervenes when the brakes are pressed a little heavier or when braking urgently. With the blessing of blended regen, the mid-range energy recovery alone can increase the range by about 23%.
summary
At the current level of technology, pure trams are bound to have real endurance deviations, and what consumers need to do is to choose "excellent" from them. The actual road endurance test based on the WLTC working conditions is the most universal pure electric endurance test, which is of great reference significance, and Chevrolet Patrol comes out on top with a real rate of 77.03% endurance, which is the "excellent". With this good result, Chang Tour not only proves the technical strength of the joint venture pure tram, but also allows consumers to have a pure tram that dares to be assured and bold to "buy, buy and buy"!