When the team of "The Skills Miles" just started, we saw that the two logos in the team were blue background. Huh? New energy vehicle? Will it delay the team's itinerary? Obviously, I also have the prejudice of ordinary people on electric vehicles.
However, all the way down, even if the speed of the team exceeds 120km/h, the two GS4 PHEVs still have not been followed, and there is no extra time for fueling and charging due to the problem of cruising range. Like the two GS7s and GS8s, the GS4 PHEV rushed in strict accordance with the team's schedule, which made me curious about the world's high-profile man hidden under the hood.
This kind of high person, only 5 in the world!
Now the new energy is really diverse. What EREV, EV, PHEV... 26 letters I know all about, and together to bully me? Do not play like this! In fact, it is not difficult to find out.
EV is a pure electric car, no engine; afraid that your cruising range is not enough, give you an engine to generate electricity, that is, the extended-range electric vehicle (EREV); later found that the engine is at high speed, the speed falls within the economic speed range, If this time first powers the battery and then drives the motor to drive the wheel, it is a bit wasteful. It is not as wasteful as the engine directly drives the wheel. At this time, the hybrid electric (HEV) is coming out; later, the law says that pure electricity should go 50km. The above can apply for new energy subsidies. This is not simple. Give a charging socket on the basis of HEV and increase the battery. This is Plug-in Hybrid (PHEV).
Obviously, PHEV is the most suitable new energy vehicle, because 50km basically meets your needs for commuting, and there are engines for refueling when driving long distances. There is no mileage anxiety at all. GS4 PHEV is full of oil. The total cruising range is over 700km.
With subsidies and no mileage anxiety, why do so many car companies insist on pure electric vehicles? Because the logic calculation of PHEV is very complicated: When does the engine participate in driving the wheels? How does the power of the engine and drive motor mix and output to the wheels? The battery is dead, is there an efficient system to keep the battery at a level? A series of problems have created a very high threshold, and it is difficult for general car companies to overcome mass production, let alone car companies that do not have independent research and development capabilities.
The best person to solve this problem is the electromechanical coupling system. There are many technical solutions for this system, such as P2 (single motor coupling system) on Volkswagen Golf GTE and i-MMD (fixed shaft electromechanical coupling system) of Honda Accord. Toyota Prius THS (Planetary Gear Electromechanical Coupling System), but only five of them can currently be mass-produced: GAC, SAIC, GM, Toyota and Honda.
So mysterious, what is the GS4 PHEV?
Open the hood of the GS4 PHEV, which is full of stuff, but very neat, this high man is the silver-white face of the G-MC system. Don't look at it. It seems that there are only two A4 paper sizes. In fact, the structure inside is very complicated. Two motors, differentials, clutches and dampers are integrated inside.
This highly integrated design can increase the versatility of the platform and reduce the production cost of new energy vehicles. For example, this G-MC system is applied to both GA3 S PHEV and GS4 PHEV. It will also be equipped with the PHEV version of GA6 to meet the needs of different consumers, but the price is not particularly expensive.
In fact, the role of the G-MC is similar to that of the gearbox, but it does not operate the gear, but the driving mode. Its purpose is only one: to meet the driver's power needs with the lowest fuel consumption. There are four ways to achieve this: pure mode, extended mode, hybrid mode, and brake energy recovery mode.
There is no need to say more about the pure electric mode and the energy recovery mode. Basically, each electric vehicle will have these two modes, and the extended mode and the hybrid mode are the characteristics of the PHEV.
In fact, we all know that if the vehicle is driving at the same speed in the speed range of 60km/h~90km/h, the fuel consumption of the engine is the least, and the extended mode and the hybrid mode are to allow the engine to rotate at this speed in the interval, so that the engine In the most efficient state.
Extended mode
When the battery is low, the vehicle can't maintain the pure electric mode. At this time, the G-MC should choose the extended mode or the hybrid mode. The basis for the judgment is very simple. It is to look at the speed at that time. If the speed is not high, choose In the extended range mode, the engine starts to generate electricity for the generator, and then the power is transmitted to the drive motor to drive the wheel. Although the road is tortuous, the engine speed can be controlled in the optimal economic zone, and its fuel consumption is much lower than that of the engine directly driving the wheel.
Mixed mode
If the speed is relatively high, the best economic speed of the engine can directly drive the wheel, just like the direct gear of the gearbox. There is no need to go through such a tortuous path. After all, the energy efficiency will be damaged. At this time, in addition to generating electricity, the engine will drive the vehicle together with the drive motor.
Since the driving motor is the main driving force at the start and acceleration, the engine only plays an auxiliary role, and the power demand for the low-turning engine is not high. At this time, the Atkinson engine is suitable.
Because its compression ratio can be very large, like the 1.5K ATK compression ratio of GAC Chuanqi, it will have a lower fuel consumption. The corresponding fuel consumption will be lower. The 1.5L ATK+G-MC hybrid system on the GS4 PHEV. The comprehensive fuel consumption of 100 kilometers is only 1.8L.
It is worth mentioning that the GS4 PHEV uses a liquid-cooled battery pack, and the general new energy vehicles are air-cooled. What are the benefits of using liquid cooling? The temperature of the liquid first used for cooling is controllable and regulated by the compressor of the air conditioner.
Our destination for this “Walk Skills Miles†is the high temperature test site in Turpan. The ambient temperature is more than 50 degrees, and the estimated wind temperature is not low. At this time, liquid cooling is superior to air cooling, but Compressor requirements are also relatively high, imported compressors from Japan's three electric, the price is high, usually pay attention to maintenance.
What is the real performance of the GS4 PHEV?
In the urban area, the pure electric mode, the quiet and comfortable driving experience of the electric car can also be fully experienced on the GS4 PHEV. There is no noise in the engine, and it is not necessary to endure the vibration transmitted from the engine when waiting for the traffic light.
However, I feel that the pure electric mileage is a little less. From the hotel to the high speed, the whole journey is about 30km. The four big men in the whole car + the luggage in the full compartment, the air conditioner is also very full. When the high-speed toll station is left, only one grid is left, GS4 The pure electric vehicle mileage announced by the PHEV Ministry of Industry and Information Technology is 58km.
The new energy vehicles of Guangzhou Automobile Chuanqi use this knob-type block, which looks very sci-fi. The children in the family will love to play, but even if they are wrong when driving, there will be no problem, it will Slowly descend to a safe speed and then stop, with warnings on both the meter and knob positions.
In fact, many people are not very likely to use the kinetic energy recovery mode, you can use it as a brake mode. The GS4 PHEV has three levels of energy recovery, with high levels for congested sections and low levels for high speed sections. As long as the throttle is released, the brake effect will be achieved. Under the combined conditions, it can not only recover more than 15% of the power, but also reduce the number of times you use the brakes and increase the service life of your brake pads and tires.
However, it is the hybrid mode or the extended mode. The engine speed is basically maintained at about 2000 rpm, and the engine's NVH and fuel consumption are kept at a relatively good level. And when you cruise at 120km / h, suddenly the big foot throttle overtakes, this time the engine's speed will soar to 4000rpm, bringing an unparalleled acceleration overtaking experience.
Due to the structural characteristics of the G-MC system of the GS4 PHEV, when you see the engine soaring to three or four thousand revolutions, the clutch of the engine has already bounced off, and all the energy is given to the drive motor, which is completed by the high torque characteristic of the drive motor. Overtaking action, clean and neat.
The left side of the dashboard of the GS4 PHEV is not the engine's tachometer, which is the output power of the driving vehicle. The blue is represented in the charging state and the green is in the output state. The engine speed can only be displayed through the small screen in the middle.
No matter which speed zone you are speeding up, this G-MC can give you a very fast response speed. Without the traditional gasoline engine waiting for the downshift, the power output is very straightforward. In the future, G-MC will also have a second generation, and it is believed that power and fuel economy will be further optimized.
Is the gasoline version plugged in and mixed with really worth buying?
Before testing the GS4 PHEV, I sat in the back of the afternoon for an afternoon, nearly 200km. I thought that adding a battery under the seat would swallow up some rear space.
However, there is no, you can still easily roll your legs, the floor in the middle is all flat, three people are very relaxed, even the spare tires are quietly lying in the trunk. The 12kWh battery is not big, it is not too small, so I have not used some car space?
At the bottom of the car, the GS4's original fuel tank position gave the battery, while the fuel tank was reduced to 37L and placed under the seat, basically occupying no space inside the car. In fact, this also reflects the ability of the Guangzhou Automobile Research Institute to develop. If it is a plagiarized chassis, I believe that the engineer does not dare to move a screw, because I do not know what effect it will have.
Only the chassis that is being developed in the future, even if a power battery of more than one hundred kilograms is added, affects the load ratio of the front and rear axles, and does not affect the comfort.
The four letters of PHEV are rare in the brochures of self-owned brands. They can develop such electromechanical coupling systems and can produce them. Domestic car companies are rare. Many car companies only regard it as a product. A prop was placed at the auto show. The Guangzhou Automobile Research Institute will be able to develop a leg and mass production on one leg and walk on two legs. This shows that the international competitiveness of its own brand has been upgraded to a higher level.
Some people say that GS4 PHEV is expensive, is it expensive? The minimum allocation is 209,800, and the subsidy is 176,800. In fact, its configuration is similar to the 138,800 DCT Deluxe Edition, but you have a more efficient power system, better driving experience, lower vehicle maintenance costs, You don't have to buy taxes, but more importantly, it allows you to have a new energy license, which saves a lot of money.
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