Byd Qin (parameter picture) PLUS DM-i fuel consumption of 3.8L per 100 kilometers is bragging?

Geshi Automobile Sun Tao 2021-04-27 21:50:13

Friends who are familiar with BYD know that DM (plug-in hybrid) models are now divided into two factions. One is DM-p, which focuses on performance, that is, the previous DM series, and the other is DM-i, which focuses on fuel economy. This is a brand-new structure. DM-i technology has been installed on Qin PLUS, Song PLUS, Tang and other models. So the BYD Qin PLUS DM-i model that we test-drive today is official.

Let’s start with the conclusion,The fuel consumption of 3.8L can reach 100 kilometers.And it can be achieved very easily..

A friend will say, "My golf can also reach four oils per 100 kilometers. Where is your BYD strength?" This question is well said, and I must emphasize that,Qin PLUS DM-i’s fuel consumption of 3.8L per 100 kilometers is the comprehensive fuel consumption under the condition of battery loss and normal urban congestion.However, the 4 liters of fuel in some refined fuel trucks are excellent in road conditions, and a certain section of the road is carefully run out by the right foot of gold (similar to the fuel-saving race), so the two are not comparable at all.

Pick a photo at random, and the fuel consumption per 100 kilometers is below 4L.

I know that some manufacturers will use a smoke screen, for example, promoting that 100 kilometers use 2 liters of oil. Maybe the first 80 kilometers are run by pure electricity, and 2 liters of oil is actually the fuel consumption of the next 20 kilometers, but we are not.

Qin PLUS DM-i is a plug-in hybrid model, which has two versions of 55 km and 120 km pure battery life. Today, all our models are inBefore the test drive, it was already in a state of power loss., that isIn order to simulate no charging conditions, look at the daily fuel consumption.Our car turned on the air conditioner all the way and took three people, and the fuel consumption of 100 kilometers was 3.8L, which also didn’t calculate the working condition of pure electric driving at all, because the electricity had reached the lowest threshold and there was no chance to cheat. I need to emphasize once again that the fuel consumption per 100 kilometers is the fuel consumption during normal driving, including traffic jams, urban expressways, etc., as well as a lot of full throttle or full throttle. We are not engaged in fuel-saving races.

Before departure, the power has fallen below the minimum threshold of 25%.

This car will still maintain 25% of SOC power when it is dead, but when we get this car, the power has dropped to 20%, because a part of it will be used up when taking photos at idle speed for a long time, stopping and turning on the air conditioner, and it will be replenished to 25% soon after the car starts. In other words, if the car power is not stopped, the fuel consumption will be lower, because it takes an extra part of energy to quickly replenish the power to 25% during driving.

■ Why does DM-I save so much fuel?

I won’t go into details about the specific principle. Friends who like to study can look at the following picture.

This DM-i system consists of 110 HP 1.5L Atkinson engine and motor, which is obviously different from the previous plug-in hybrid model in terms of design ideas.DM-i is an idea based on electric drive.In most cases, the engine exists as a generator, can be said to be80%-90% of the time, it is an extended-range electric vehicle..

Only when cruising at high speed can the engine be directly connected through the clutch with a fixed gear ratio, but at this time, if there is a high-power power request, the engine and the motor will output power at the same time, but the main power still comes from the more powerful motor.

The thermal efficiency of this Xiaoyun 1.5L engine reaches 43%. Coupled with the structural advantages, the comprehensive fuel consumption of this large compact car reaches 3.8L per 100 kilometers. If it is driven in a "fuel-saving race" mode, the fuel consumption can even be less than 3 liters.

■ What else does DM-I have besides saving fuel?

Smooth, because it has no reason to be uneven..

The power that the DM-i system finally transmits to the wheels basically comes from the motor, so it doesn’t have a gearbox at all. It feels like an electric car when it is driven, and it won’t be noticed when the engine is directly connected, because it is connected with a high gear and a small gear ratio, which is equivalent to the high gear of the gearbox. You have heard of the ups and downs in the first, second and third gears, and rarely heard of the ups and downs after the fifth gear.

plusVery linear and delicate throttle brake and steering wheel adjustmentThe vehicle is really smooth on the driving level, and it also benefits from the principle of DM-I. This car also performs well on the NVH level.Under the condition of smoothness and the same power request, it shows that all fuel vehicles of the same level in the market are crushed.I am responsible for this sentence.

If it is more true, the vibration from the floor can be optimized when the throttle passes the kickdown engine’s forced work, but many drivers will never use this working condition (because it is enough without kickdown power), and then consider the price of 100,000, so it can be basically ignored.

■ How does this hybrid system compare with Toyota and Honda?

In principle, there are many similarities between BYD’s DM-i and Honda’s i-MMD. In fact, BYD has adopted similar principles on the F3DM listed in 2008, but the technology was not mature enough at that time.

becauseBoth BYD’s DM-i and Honda’s i-MMD are mainly electric drives and have no gearbox, so they all feel like electric cars., very smooth. The model corresponding to Qin PLUS DM-i is Lingpai’s sharp hybrid. I have also driven that car. BYD’s chassis is much better in weight, sound insulation and power than Honda’s.

Besides Toyota, Toyota THS is well-known all over the world, but due to structural reasons, its power needs to be frequently switched between engine and electric drive, so the driver can still clearly feel the engine combination and shutdown, and occasionally it will be frustrated.You can hear the sound when BYD’s DM-i and Honda’s i-MMD engines start, but it will not affect the integrity of power output.. In addition, the brakes of Toyota’s hybrid models have always been poorly felt (because of kinetic energy recovery), including Lexus, BYD and Honda.

Of course, it is certain that no matter whether Toyota or Honda’s hybrid technology, its performance in fuel saving is obvious to all, and its stability has also passed the test of the market. However, after BYD DM-i came, their advantages are really not obvious from the results.With the same fuel consumption, the acceleration time of DM-i can reach less than 8 seconds in 100 kilometers, and the hybrid of Corolla twin engine and Lingpai will take 11 seconds.The reality is so cruel.

■ About the Qin PLUS DM-i car.

What I am most satisfied with is the powertrain of this DM-i,Qin PLUS DM-i has good ride comfort, power, silence and space.These are not bragging, they are actually experienced, and besides,Its starting price is only 105,800.This price gives you a plug-in hybrid car, and it’s also powerful and fuel-efficient in the state of power loss. In fact, it’s interesting enough, although I think the configuration of high-equipped models should be higher, such as adding seat ventilation, but these are all small things.

What I’m not satisfied with is also very clear, which is highly publicized by the government.DiLink system is actually not easy to use.Pay too much attention to functionality and ignore that it is a car machine, but it is actually a tablet computer. Those advertised functions are nothing more than installing the corresponding APP. I hope that the operation logic can better consider the user’s feelings instead of emphasizing what functions are there.

There is also a co-pilot seat that cannot be adjusted, and the seat itself is too high, and the materials used for interior work are not particularly exquisite. Of course, everything depends on the price, and the direct rival Toyota Corolla double engine also works in general.The price of Qin PLUS DM-i is more than 10.58 ~ 145,800 yuan. You bought a plug-in hybrid model. The more expensive Corolla twin engine is just an HEV, and the Qin Plus DM-I is more powerful when the fuel consumption is similar.If you have charging conditions, the use cost will be lower.

Looking back at the previous text, it seems that I am BYD’s child care. If I can, I really recommend you to experience this DM-i powertrain. I even think BYD can give up the pure fuel car. The internal combustion engine power can be made into two factions, one is DM-i and the other is DM-p, which is very good.

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Article label: BYD


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