Bitche Original With the development of battery technology, the cruising range of electric vehicles is getting longer and longer. Compared with the cruising range of only two to three hundred kilometers a few years ago, there are many electric vehicles today. Both can achieve a range of five to six hundred kilometers. However, there are some problems with "false mileage" in electric vehicles. There is still a certain gap between the battery life data published by manufacturers and the actual battery life used by users. Therefore, the issue of battery life anxiety still makes many people take a wait-and-see attitude towards electric vehicles.
Because of this, today we have brought two veteran electric vehicles with mature and stable market reputations. The latest versions have exceeded 500km of battery life. They are: guide price 17.89 The 2022 Buick Weilan VELITE 6 connected smart PLUS (CLTC 518km) with a guide price of 152,800 yuan and the BYD Qin PLUS 2021 EV with a guide price of 152,800 yuan 500KM premium type (NEDC 500km). Although there is a certain difference in price between the two, the price difference mainly comes from differences in motors and configurations. This time we mainly examine the battery life performance of the two cars, so the price impact is not significant.
Next, we will conduct a battery life test competition between these two cars, and finally determine which car has lower power consumption, more realistic battery life, and can solve the user's battery life anxiety problem to the greatest extent.
01 Static introduction: Weilan 6 is more sporty and fashionable, while Qin PLUS EV has a stronger sense of technology
Before starting the test, we will now make a review of the two cars Simple static introduction.
The 2022 Weilan 6 does not have many changes in appearance and interior, but if you look carefully, you can still find that the new model has increased in creating a sporty feel. For example, the internal chrome trim strips at the black LOGO are slimmer, the front surround of the vehicle adopts a vertically arranged fang shape, and the shape of the rims is also more energy-efficient, using closed 17-inch rims with low wind resistance.
The body size of Weilan 6 is 4673/1817/1514mm, and the wheelbase is 2660mm. The hatchback-style rear tailgate is liked by many consumers. While the opening is huge, the trunk also provides a very considerable rear volume, making it a pragmatic and good choice for home use.
The design of the rear of the vehicle still resembles that of a station wagon, and the overall design is very simple.
In general, although Weilan 6 is a new energy vehicle in appearance, the overall design style is still fashionable and capable. It's too sharp but not too boring, which is in line with most people's aesthetics.
The appearance of the 2021 BYD Qin PLUS EV is more like a smaller version of the Han EV. The appearance of the Qin PLUS EV based on the Dragon Face 3.0 pure electric design concept is more technological, and the overall design is still very smooth. .
In terms of body size, the length, width and height of Qin PLUS EV are 4765*1837*1515mm respectively, and the wheelbase is 2718mm, which is considered larger among compact cars.
The rear of the vehicle is quite delicate. The taillights also use LED light sources. At the same time, the shape of the taillights is more complicated than that of the Micro Blue 6. When lit, the effect is good. The through-type taillights can also expand the appearance of the tail. visual width.
In terms of appearance, we do not comment on who looks better. After all, consumers of different ages and regions have different aesthetics. Weilan 6 is more simple and fashionable, while Qin PLUS EV is more sci-fi.
The biggest difference in appearance between the two is of course the styling. Whether you prefer a sedan like Qin PLUS EV or a station wagon like Weilan 6 depends on your preference, but the latter is a hatchback The tailgate will be even better in terms of convenience.
In the interior part, the new Weilan 6 follows the design of the previous generation model. Most of the lines in the car are arcs. This time The facelift also adds a gray and black interior with suede leather and a large number of soft materials, which feels very good to the touch.
The lines of the vehicle's interior are not symmetrical, which will draw everyone's attention to the side of the main driver's seat. I give thumbs up to the knobs and buttons used in the air-conditioning area. Although it doesn't look as cool as being integrated into the large screen, experienced drivers all know that this design will make it easier to operate blindly.
The suspended display screen is 10 inches, standard for all series, and the built-in multimedia system is the eConnect intelligent interconnection system. The biggest highlight of this system is the use of the new iFlytek voice system, which not only has an accurate voice recognition rate, but also supports interrupting conversations midway and multiple rounds of continuous conversations, providing an excellent user experience.
In addition to the 10-inch central control screen, Weilan 6’s 8-inch LCD instrument is also standard in the entire series. It’s not big, but it obviously has obvious advantages over the Qin PLUS EV next door—the latter’s instrumentation has been criticized by many consumers.
Another major advantage of Buick Micro Blue 6’s interior is the material and workmanship. Compared with BYD Qin PLUS EV, I think it has advantages, mainly reflected in Whether it is the driving mode knob, the air-conditioning area, or the workmanship of the center console, they are all worthy of this price level. The damping of the knobs is appropriate, and the buttons are compact and not loose.
The floor of the rear row is basically flat, and there are also air outlets in the rear row. Coupled with the trunk volume that can be expanded to 1098L, Buick Weilan 6 is really solid. It is a family car that implements practicality to the end.
The interior of BYD Qin PLUS EV also adopts many design elements of its big brother Han EV, and it is also BYD’s latest family model.Decoration designed. The rotatable 12.8-inch floating large screen is the most eye-catching part of the car. The stacked center console is also BYD's current iconic design element. With this navy blue color scheme, the entire vehicle interior still looks very elegant.
The rotatable floating large screen is very complete in functions. The multimedia system does not use BYD’s latest multimedia system, but DiLink 3.0, but there are a lot of localized functions. And entertainment functions are the advantages of this system, and it is used more like an Android tablet.
In general, the interiors of the two also follow different routes. The first impression of BYD Qin PLUS EV is good, but I think there are still some differences in the choice of materials. There is improvement. The interior of Weilan 6 is excellent in workmanship and the use of materials is also better. The large number of leather and suede materials are really good in creating a sense of quality.
02 Power/battery capacity/driving experience: Weilan 6 is more powerful and drives more refreshing
The front permanent magnet synchronous motor equipped with the 2022 Weilan 6 has a maximum power of 130kW and a maximum torque of 265N·m. The battery capacity It has been increased to 61.1kWh, the energy density has been increased to 163Wh/kg, the CLTC cruising range has been greatly increased to 518km, and the battery can be charged from 30% to 80% in just 30 minutes. The suspension combination is MacPherson independent suspension at the front and multi-link independent suspension at the rear.
The 2021 Qin Plus is also equipped with a front-mounted permanent magnet synchronous motor with a maximum power of 100kW and a maximum torque of 180N·m. The battery capacity has been increased to 57kWh and the NEDC cruising range is 500km. , it also takes 30 minutes to charge the battery from 30% to 80%. The suspension combination is a front MacPherson independent suspension and a rear torsion beam non-independent suspension.
In terms of book parameters, Weilan 6 still has a clear lead compared to Qin PLUS EV. Although we did not test the acceleration capabilities of the two cars this time, from my personal test drive experience, Weilan 6 still has a good push-back feeling above 70km/h, while Qin PLUS EV is a bit cramped. .
In fact, if we make an analogy based on the power level of fuel vehicles, Weilan 6 should be at the level of a 1.5T turbocharged engine, and the Qin PLUS EV feels better when driving It's more like a 1.6L naturally aspirated engine. However, both cars are electric cars. Without the constraints of the gearbox, the dynamic response reflects the refreshing feeling of driving a pure electric car. The power output is in place the moment the accelerator pedal is depressed.
In terms of driving quality, Buick Weilan 6 adopts rear multi-link suspension. At the same time, the adjustment is somewhat biased towards sports, so it feels very compact when driving, and its steering has a smaller gap. In addition, it has stronger power and faster dynamics than fuel vehicles.Power output, so the Weilan 6 feels very comfortable to drive. This feeling is reflected in the flexibility of the body and the crisp and quick lane changes.
Qin PLUS EV, which uses rear torsion beam non-independent suspension, is also more comfortable-oriented in chassis adjustment, and its positioning is more comfortable. It seems to be trying to persuade the driver not to be impatient. It doesn't have a high-end driving quality when driving, but it is also comfortable and easy to drive, but you can't be as passionate as Weilan 6.
In addition, QinPLUS EV and Weilan 6 both have three driving modes to choose from, but in terms of kinetic energy recovery, , Qin PLUS EV only has two types: standard and strong. And Weilan6 has three strengths: light, medium and high, as well as the strongest single pedal mode. .
In terms of battery capacity, Weilan 6 has a 61.1kWh ternary lithium battery and Qin PLUS EV has a 57kWh lithium iron phosphate battery. The capacities of the two are basically the same. And both support fast charging. When we measured low-power fast charging speeds on standard charging piles in the same national grid, Weilan 6 was slightly faster. However, everyone knows that the advantage of lithium iron phosphate batteries is stability, but the energy density is not as good as that of ternary lithium batteries, which means that new energy vehicles using ternary lithium batteries need to spend more effort on three-power technology to ensure Vehicle safety.
After the upgrade of the new Buick Weilan 6, the heat dissipation and safety of the electric drive system have been optimized to a certain extent. BYD Qin PLUS EV also has many years of technical accumulation. Coupled with the stability of BYD's blade battery, there is no problem in terms of safety. But currently BYD Qin PLUS EV is not based on BYD's latest e-platform 3.0. We look forward to improvements in the new model.
The official cruising range of Buick Weilan 6 is 518km according to CLTC standard, and Qin PLUS EV is 500km according to NEDC standard. Although there is a difference of 18km, considering the difference between CLTC standard and NEDC standard, we Let’s assume that the battery life of the two is basically the same. Next is the formal endurance test part.
03: Battery life test: Weilan 6 has excellent high-speed energy consumption performance
This battery life test The test will cover a total of 200 kilometers, including 100 kilometers of highways, 50 kilometers of urban elevated roads, and 50 kilometers of ground roads. 2em;">The ratio of 2:1:1 was tested mainly based on daily commuting, weekend travel around the city and intra-city commuting.Scenario formulation.
Before the test started, we charged the two vehicles to 100% at the same charging station. What needs to be mentioned in advance here is that the battery life of electric vehicles is affected by many factors, among which the most influential ones are: outside temperature, indoor air conditioning temperature, kinetic energy recovery intensity, driving style, average speed, etc.
Therefore, this test tried to control most of the conditions: the outside temperature was 9 degrees Celsius, the two cars were following each other, and the driver was driving halfway Replacement during mileage, driving mode standard, kinetic energy recovery intensity are all the lightest, and the air conditioning system is automatic and adjusted to 25 degrees Celsius.
The indicated mileage after the two are fully charged is the same as the official mileage, and the indicated cruising range is also marked based on their respective standards, Let's set off next.
Before the test started, I also experienced the single pedal mode of Weilan 6 alone. The single-pedal mode of Weilan 6 is actually not difficult to get started. The main reason is that the pedal adjustment is very linear. After simply driving for ten minutes, you can better control the acceleration and braking of the vehicle. If you have never driven a new energy vehicle, Still need to pay attention.
In fact, many electric vehicles have single-pedal mode, but if the pedal adjustment is not done well, the driving experience will be very bad. At the same time, if the single-pedal mode is used, some vehicles will have obvious frustration and dragging feeling. , which will also make passengers very uncomfortable. The advantage of this mode is that it has obvious optimization for battery life, and there is basically no waste of kinetic energy.
Let’s do it first The test was on a 50km elevated road section, and the total time was about 1 hour and 21 minutes. Because the road was far away and the traffic flow on Shanghai's elevated roads was always large, the average speed was about 37km/h, which is not the constant speed of 80km/h as everyone understands.
After actual testing, when it reached the end of the first leg of the journey, the BYD Qin PLUS EV meter showed that the cruising range was 436km, the cruising range was reduced by 64km, and the remaining power was 87%.
The Weilan 6 watch shows a cruising range of 452km, the cruising range is reduced by 66km, and the remaining power is 88%. The difference in battery life between the two on elevated road sections is not big, and they are basically at the same level.
We then conducted a 100km high-speed section test. The total time was 1 hour and 48 minutes, and the average speed was 56km/h. When we arrived at the end of the second section of the test, Qin PLUS EV's display shows that the cruising range is 268km, and the remaining power is 53%, which is nearly half. The display of Weilan 6 shows that there is still 318km of battery life left, and the remaining power is 61%. both inThe difference in battery life on highway sections is still very obvious. In fact, highway sections are more "power-consuming" for electric vehicles.
We analyze the reasons behind Weilan 6’s advantage mainly in two aspects: Weilan 6’s motor power is greater than that of Qin PLUS EV, and it can change lanes and accelerate at high speeds. , there are many overtaking situations, which puts more pressure on Qin PLUS EV. In fact, the charge and discharge curve of lithium iron phosphate battery is very flat, so when facing scenes that require power, power consumption will be accelerated.
On the other hand, the test time is at night, and the drop in temperature has a greater negative impact on the lithium iron phosphate battery of Qin PLUS EV. The conductivity of the ternary lithium battery used by Weilan 6 has certain advantages compared to lithium iron phosphate batteries, and this advantage will be more obvious at low temperatures.
We chose the morning rush hour of the next day for testing the 50km city range. This is also the actual scenario where most consumers use trams: For consumers who buy trams A large part of it is to save fuel costs during daily commuting. So how do these two cars perform?
The starting mileage of the two is: Qin PLUS EV 31144km, with 170km left and 34% remaining power, while Weilan 6 The mileage shown on the meter is 3190km, the remaining battery life is 210km, and the remaining power is 40%.
After running around the city for 1 hour and 51 minutes, the average speed was calculated to be about 27km/h. At this time, Qin PLUS EV still had 82km of battery life left, and the remaining power was 16%, while Weilan 6 still had 82km of battery life left. There are 137km left and the remaining power is 26%. The cruising range of the two vehicles in the 50km city test session dropped by 88km (Qin PLUS EV) and 73km (Weilan 6) respectively.
This part is different from what everyone imagines. Most people think that electric vehicles are more energy-saving in traffic jams. This statement is based on the characteristics of the battery and motor. No problem, but we did not pursue the most power-saving driving method during the test. Instead, the driving style was close to the state of most people commuting to work. It was unambiguous whether to overtake or to press the switch. In this part, Weilan 6 also has a certain lead. The reason behind the analysis actually lies in power. It has stronger power and shorter acceleration time. At the same time, the discharge voltage of the ternary lithium battery is higher. Taken together, Weilan 6 has a certain lead. .
Finally, let’s summarize the endurance test results: In each road section test, Qin PLUS EV consumed 64km, 168km and 88km respectively. The total cruising range of the 200km road section consumed 320km, which was a loss. The rate is 62.5%.
The cruising range consumption of Weilan 6 on each road section is: 66km, 134km and 73km. The total cruising range consumption is 273km, with a loss rate of 73.2%.
Reflected on the power, QinIn the 200km endurance test, PLUS EV consumed a total of 37.05kWh (65%) of electricity, Weilan 6 consumed 32.2kWh (52.7%) of electricity, and power consumption per 100 kilometers was 18.5kWh/100km and 16.3kWh/100km respectively.
Of course, this is data measured when winter is not so friendly to electric vehicles and kinetic energy recovery is basically zero. This test will definitely be higher than the data tested in the laboratory by CLTC or NEDC, but I think it is more meaningful for everyone to use the car in real life.
Full text summary: Through comparison, we conclude that the average power consumption and battery life loss rate of Weilan 6 are better than Qin Plus EV. Analyzing the reasons behind it, I think that on the one hand, it is the optimization of the three electric parts of the 2022 Weilan 6. Compared with the old model, in addition to replacing it with a more powerful motor and a larger capacity battery, it also focuses on the gearbox. The gear ratio is optimized to further reduce power consumption. At the same time, stronger power also avoids many instantaneous high-current scenarios, which is helpful for power saving. In addition, ternary lithium batteries do have certain advantages in innate characteristics compared to lithium iron phosphate batteries, at least in terms of battery life in winter. .
Electric vehicles are a new track. We can see some of the concepts behind the company from these products. Whether it is an electric vehicle or a fuel vehicle, it ultimately serves driving. Behind the Weilan 6 product, we can see GM’s car-making philosophy of focusing on driving experience and taking root in technology.