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Japanese hybrid monopoly is ended, how is the Great Wall car lemon mixed DHT effect?

For a long time, the words are mixed with Toyota, Honda, which is already synonymous with ordinary mix. Since the first launch of hybrid power in Toyota in 1996, in 25 years, General, Mercedes, BMW, and the public have continued to try, and finally. The only ability to fight against Toyota is the same from Honda from Japan.

Now, this situation has changed, 2020 Great Wall Motors released lemon mixed DHT. Regardless of the technical principles, the actual performance, the long-rise system of Great Wall has a strong strength of Toyota and Honda.

Lemon mixed DHT multi-mode is highly efficient and overall performance

“Duoda” advantage取 舍 – Sacrificial high-speed power and fuel consumption

Toyota Mixed THS and Honda Mixed I-MMD, is the most two of the mixed power models in the market Brand. Although both are economically strong, consumers are easy to ignore the compromise behind it. Toyota Mixed THS emphasizes the “Mixed Output” – Rely on planetary gears, engines and motors, mutual adjustment, using their own advantages, ensuring that the engine is always in the optimal state, reducing fuel consumption.

Honda mixed I-MMD emphasizes the “mixing of the structure”, although the power system is still composed of the engine and the motor, but the medium and low speed is mainly driven by the motor, and the high speed is mainly driven by the engine.

Honda mixed I-MMD structure high-level low-speed performance

Although the idea is different, the characteristics of both are substantially similar. That is, the structural advantages are concentrated in low speed. With the gradual increase in the speed, the motor energy index rises, the engine begins to undertake the main output task, lack the adjustment of the power, so that the two have a problem of insufficient driving capacity in high-speed road conditions.

Not just high speed, it is actually equipped with a smaller motor, the low-speed acceleration performance is not excellent.

from a certainEssence, Toyota, Honda hybrid system also has advanced space, and the economic advantage in medium and low speed is exchanged at the expense of high-speed dynamicity. This gave the birth of lemon mixed DHT created opportunities.

Overall, Toyota, Honda mixed system is the common point of focus on the use of low-speed urban road conditions, does not emphasize high-speed road conditions, resulting in problems with insufficient power.

Lemon mixed DHT supports HEV and PHEV two dynamic forms

[123 ] Lemon mixed DHT’s perseverance – fully meet travel demand

Toyota, Honda mixed characteristics determine it more suitable for China’s more congested city road conditions In the face of China’s long-distance travel, and the traditional pure fuel cars did not pull the gap.

On this basis, the Great Wall Car Lemon Mixed DHT was born. It continued Toyota and Honda’s excellent performance in the middle and low-speed road conditions, and strengthened the power output under high-speed road, and even according to Chinese consumers. Different demands have introduced different mixed architectures.

Haval H6 with lemon mixed DHT is good in power, fuel consumption, and smooth performance

According to the model positioning, Lemon mixed DHT consists of a system, two architecture, three sets of power assembly, respectively, a compact car 1.5L natural intake engine with 100KW drive motor, “low power version”, medium-sized car 1.5T engine plus 130KW motor “High Power Edition” combination, and the medium-sized car PHEV system – on the basis of the high-power version of the HEV system, expand the battery capacity (maximum record 45kWh, pure battery continuation of 200km), and installed the rear bridge A 2-speed P4 electric drive system for maximum power 135kW, achieving longer pure electrical life and stronger power output. For different levels, different types of cars are fully covered to meet the power output of multi-consumption demand.

Lemon mixed DHT five power forms, respectively adapt to different vehicle type

Pursue system overall performance, both It is necessary to save again

Lemon mixed DHT pursuit system overall performance, all speed range of travel, disassembles with a car scene. In different speeds, in the scene, the allocation strategy and mutual cooperation of the motor and the engine achieve performance and efficiency. For example, the urban area will stop, the engine power output is not uniform enough, and the motor is sensitive to more advantages, so the lemon mixed the DHT system low speed or peristaltic, and the motor is directly driven by the motor, and the long travel distance can be maintained.

Lemon mixed DHT energy schematic, engine and battery simultaneously generating electricity to drive motor

When electricity is insufficient, lemon mixed Dynamic DHT has entered a series mode. This mode is consistent with Honda I-MMD, and the engine is powered by electric power, and the motor directly drives the vehicle, bringing more agile power output and the stable environment of the engine operating condition.

With the same return, under the low speed road in the city, the Great Wall Car Lemon Mixed DHT and Toyota, Honda Mixed has reached a very low 100-kilometer comprehensive fuel consumption performance. For example, it is equipped with a new compact SUV for lemon mixed DHT. Its 100 kilometers of comprehensive fuel consumption is only 4.7L, while the Toyota RAV4 fuel consumption of THS technology is equipped with 4.7L, which is equipped with I-MMD Honda CR-V fuel consumption. 4.9L.

    However, when entering the high speed mode, the motor is no longer economical, and at this time, the engine directly drives the high-efficiency area of ​​the vehicle. The generator is converted to adjust and ensures that the engine operates at an efficient operating point, and the motor selects the auxiliary output based on the battery power and engine condition.
  • Looks, lemon mixed DHT continues some of the Japanese thoughts, but in key two points, it also has its own completely different places:

Lemon mixed DHT, engine aloneDuring the high speed, the engine can only drive the vehicle through a fixed gear, and the power is insufficient, and thus is called single speed mixing.

In order to solve this problem, lemon mixed DHT has increased a gear under the high speed road, which realizes two-speed mixing, that is, when the engine is on the high-speed road condition, it is still possible to achieve power through two conventional gear. Adjustment. Increasing the direct advantage of two gear is the need for power, the engine can pass the torque through the downshift, once the working condition is stable, the engine is secured, and the speed can be lowered, thereby there is better economy.

In this process, the motor has always adjusted the operating point of the engine, whether it is small load cruise or a large load overtaking, climbing, the engine can operate in an efficient interval. This means that the engine can realize the engine directly drive the vehicle in more working conditions (35km / h below the small load), reducing the efficiency loss of different forms of energy conversion, achieving the highest overall performance.

Hidden technical difficulties – Pingshun

Different speeds, the use of different drive patterns under scenes, and achieve optimal overall performance. These logic look simple, but the process is very difficult. For lemon mixed DHT, the most difficult may not be the separate research and development of these modes, but seamlessly combine these patterns. Previously, the I-MMD had a problem of pulling a smoothness in the combined series mode and the engine direct drive. All of these must be handed over to the software.

That is to say, the most difficult place in this field I-MMD may not be a structure, but software logic. This is also a problem facing many cars in the past. Who can tell more about the design ideas, and the actual experience after mass production will never touch consumers.

Lemon mixed DHT dual motor controller adopts a cast aluminum housing, built-in UFC TC38 processor, has excellent integration and stability

[ 123] Obviously, the lemon mixed DHT of the Great Wall car uses more complex systems. The difficulty of software is more difficult, and this software has no powerful research and development.Ability and capital material investment, is unable to solve.

Lemon mixed DHT actual experience – fast smooth, provincial

There are two kinds of driving characteristics to choose from, In principle, after the engine and the electric motor, the vehicle driving personality is more powerful to electric or fuel, and it is determined at the beginning of the R & D of the hybrid system.

Toyota THS tends to fuel in the driving characteristics, Honda I-MMD large motor direct drive, biased toward electric vehicles. Biased towards fuel vehicles, it is relatively easy to accept; biased toward electric vehicles, you can get a better pure electric vehicle experience, both of which are long.

Lemon mixed DHT obviously obviously side heavy electric vehicles in the actual experience, because the electric characteristics can greatly improve the trafficiency and dynamic responsiveness of the vehicle, greatly enhance the vehicle texture.

  • Haval H6 equipped with DHT mixed technology has good performance in medium and low speed, high speed and acceleration

Lemon mixed Move DHT high power TM drive motor, maximum power 130kW, maximum torque reaches 300 nmiddot; M, it can be driven by electric motive at low speed, and the entire car is still in terms of quietness or smoothness. which performed. In the travel of urban roads, it can be very linear, followed, there is no hesitation.

Even if entering the series stage, the engine is generating electricity, the rotational speed does not change with the speed, and can be maintained near 3000 rpm when accelerating, and the noise is lowered. Due to the process of the engine’s full-power output, the electric motor is added, and the power output is more powerful, and the motor is smoked, the engine is not smooth, and the height improvement is especially large.

The most test in the whole process is the performance of electricity, in series, and in parallel different modes. When lemon mixed DHT switches different working modes through clutches, the output of the motor will be actively adjusted, and the power fill is made from the intermittent opening, ensuring that the acceleration process does not have power interruption and meal, and the experience is excellent.

Mixed Lemon Mixed DHTThe vehicle’s driving charge and energy recovery function

Because the vehicle is equipped with an energy recovery mode, the vehicle is powered by a lemon mixed DHT system, and the driving electrical machine will perform energy recovery and contribute a part of the system. The effect of moving the effect, and cooperate with the mechanical brakes, some changes will occur. However, the lemon mixed DHT system can self-regulate energy recovery, realize the random switch between fuel-fuel-style and electric vehicle style.

However, the fundamental logic of hybrid is a more suitable motor, and the non-efficient operation of the motor, the high-efficiency operation of the motor, so the overall extent of the mixing system It also depends on a set of specially focused economic power combinations. According to the official data, the fuel consumption is 5 l / 100km under the intermediate model of high-power lemon mixed DHT system, and the high-speed fuel consumption is 6.5 L / 100km.

In order to achieve excellent economic, the high-efficiency engine for lemon mixed DHT system adopts the Atkinson / Miller cycle. The motor is self-developed by the Great Wall Automobile, which adopts Honda, Volkswagen and GM windings, which is more efficient. At the same time, integrate motors, gear motor controllers, and DC / DC DC converters together, and the overall volume is more compact, and it is also convenient to arrange and adapt to different models.

  • Lemon mixed DHT core components – high fuel efficiency mixed special engine
  • smaller volume guarantee Lemon mixed DHT can bring less fuel consumption to the vehicle without reducing the practicality of the vehicle space.

Yason Summary

Whether it is technical principle or actual experience, Great Wall Motor Lemon Mixed DHT After Structure and Software Double test, in fact, the level of Toyota, Honda, and breakthrough in the original consumer pain. This also means that the day is the case where the mixed power is held for a long time, consumers can finally use the hybrid system of China’s brand independently developed in China’s models.

Lemon mixed DHT release and mass production, oneAspects enabled Chinese consumers to enjoy the most adopted technology, on the other hand, said that after so many years of development, China Automobile has made breakthroughs in the core technology, and has chased the joint venture brand. Now, a new war has been officially opened.

Figure | Source from the network

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