However, this situation will be broken with China's determination of hybrid power as the way out for traditional internal combustion engines. ?
12 15, Great Wall Motor released the self-developed hybrid electric technology-lemon hybrid DHT. With the characteristics of "three highs and one low" (high efficiency, high integration, long battery life and low fuel consumption), it officially challenged Toyota, Honda and Nissan. According to Shan Hongyan, vice president of Great Wall Motor R&D, lemon hybrid DHT is superior to Japanese competitors in terms of fuel efficiency, power performance and driving experience, and even claims to be the current "hybrid optimal solution". ?
▲ Vice President of Great Wall Motor R&D? Dan Hongyan
Since we haven't actually experienced the hybrid models of the Great Wall at present, it is impossible to objectively evaluate the advantages and disadvantages of this hybrid technology of the Great Wall, but this does not affect us to analyze whether it really has this level from official information.
Where is lemon mixed DHT strong? High-speed fuel saving and strength
According to Guan Xin, dean of the Automotive Research Institute of Jilin University, this hybrid technology of Great Wall is actually similar to that of Toyota Honda, which uses dual motors. In addition, it is similar to Honda i-MMD in structure, but superior to Honda. Where is it reflected?
Guan Xin said that after carefully reading the hybrid technical data given by Great Wall, it was found that in the high-speed stage, the lemon hybrid DHT of Great Wall, like Honda, can be directly driven by the engine, but because Honda adopts the E-CVT single-stage reducer, it can only cover a relatively narrow speed range, while Great Wall DHT retains a two-speed fixed-axis gearbox, which can be connected in parallel with the electric drive in a wider speed range. ?
▲ Dean of Automobile Research Institute of Jilin University? Guan Xin
Simple and rude understanding, Honda has only one set of gears in the transmission link, while the Great Wall uses two sets (power gear and economic gear), so you can call it "gearbox".
▲ Great Wall Lemon Hybrid DHT Double Motor Series Topology Structure
According to Shan Hongyan, this hybrid of the Great Wall is aimed at the scene of "urban travel is the mainstay, supplemented by high-speed driving". Whether it is daily urban driving, high-speed or even heavy-duty climbing, it has the performance and efficiency advantages of the full speed range. It is more fuel-efficient and more fun to drive than Japanese brands such as Toyota, Honda and Nissan.
▲ Great Wall lemon mixed DHT working mode?
Specific to the daily driving scene, when waiting for parking, the engine stops and the motor stands by; When driving in the city, the system intelligence switches between EV mode and series hybrid mode, and the engine always stays in the highest efficiency range; When the vehicle speed reaches more than 35 kilometers per hour, such as suburbs and elevated roads, the system can intelligently choose EV mode or engine direct drive mode according to the load; Common medium-speed rapid acceleration overtaking, the engine, driving motor and generator output at full load, providing the best power; After high speed, under normal circumstances, the system will intelligently choose EV mode or engine economy gear direct drive mode to cruise according to the load. Once high-speed overtaking is needed, in addition to switching to the power-block direct-drive mode, the driving motor and generator will also output at full load together to provide the best dynamic response. Solve the pain points of hybrid users at this stage when other hybrid systems are weak in overtaking at high speed.
In addition, the Great Wall lemon hybrid DHT is a technical framework suitable for HEV traditional oil-electric hybrid and PHEV plug-in hybrid. ?
The core of all this is that the Great Wall has adopted the "seven-in-one" technology, that is, the hybrid engine, the generator/drive dual motors, the fixed-axis gearbox, the dual-motor controller, and the integrated DCDC are all integrated. The result of high integration is a more compact volume, lighter weight and convenient arrangement in the engine compartment. It is said that the Great Wall Hybrid can be extended to five different power versions (including HEV and PHEV) through two kinds of displacement engines, two kinds of motors with different powers and P4 motors, and the models cover A-class to C-class, with a wide range of applications.
What is the performance of Great Wall Hybrid in practical application scenarios? Let's use official data to explain. ?
▲ Feng Mu, vice president of commodity strategy and technology research and development of Great Wall Motor, explained the technical strategy of "lemon mixed DHT"
How fuel-efficient is it? Up to 50% overall system efficiency.
According to the official statement, the Great Wall HEV can reach the highest system comprehensive efficiency of 50%.
Converted into a fuel consumption figure that is easier for everyone to understand, for the hybrid SUV of Great Wall Haval H6 (unfortunately, we don't know which one the first hybrid product of Great Wall will be), the comprehensive fuel consumption is 4.6 liters/100 kilometers (Toyota Honda SUVs of the same level are all above 5 liters). If this hybrid system is used in a B-class SUV, the city fuel consumption data is 5 liters, and the high-speed is 6.5 liters-in contrast, the city fuel consumption of competing products at the same level is generally 5.6-5.7 liters, and the high-speed needs 7. 1 liter.
To be honest, the performance data of the Great Wall Hybrid is very good, whether it is an A-class or a B-class SUV. ?
▲ Core component of lemon hybrid DHT-highly integrated hybrid DHT transmission
In terms of power performance, taking the HEV version of the B-class SUV as an example, the Great Wall can achieve an acceleration time of 7.5 seconds, which is faster than the dynamic response of traditional fuel vehicles in terms of driving experience, and the ride comfort during acceleration is comparable to that of pure electric vehicles. For this point, friends who have driven Honda i-MMD models should have realized that the Great Wall system is not weaker than it.
This performance is due to high-power motors and large-capacity batteries. ?
▲ Song, Vice President of Great Wall Motor Technology, explains the technical characteristics of "lemon mixed DHT"
According to reports, the Great Wall hybrid system uses two traditional power sources: 1.5L naturally aspirated engine and 1.5T turbocharged engine, as well as 100kW and 130kW front axle motors. As for the PHEV four-wheel drive version, a high-performance rear axle motor of 135kW/233Nm will be added.
In terms of battery, HEV version adopts 1.76kWh high-performance battery, which is also larger than Toyota THS battery capacity, and the discharge power reaches 70.9kW；; The PHEV version uses the world's largest 45kWh large-capacity battery with a cruising range of 200 kilometers and a discharge power of 246kW. Support 1 1kW AC slow charge and DC fast charge, which can fully charge 80% of the power in 30 minutes. ?
Here, I will say a few words about the PHEV version. Similarly, taking the B-class SUV as an example, the acceleration time of the Great Wall PHEV two-wheel drive model is 7.2 seconds, the fuel consumption per 100 kilometers is 0.7 liters, and the pure electric cruising range is 170 kilometers. As for the four-wheel drive model, the maximum power of the system can reach 320KW after adding the rear axle motor. Moreover, because there is no traditional mechanical transmission device, the front and rear power are separated and the power distribution is more flexible. It is said that the torque of the front and rear axles can be intelligently and dynamically adjusted between 0: 100- 100: 0-specifically, in the daily driving environment, on the ice and snow road. On muddy roads or sand, it has become a timely four-wheel drive, and the power of the front and rear axles is intelligently switched to ensure that it is out of trouble. The maximum torque on the front wheel side is 3000Nm, and the maximum torque on the rear wheel side is 2800Nm. In sandy land, it can automatically adjust the power output according to the difference between hard sand and soft sand. ?
『? Finally? 』
At the press conference, Dong Yang, vice chairman of China Electric Vehicle committee of 100, was very emotional. He said, "It's too late to mix independent brands, but neither consumers nor people in the industry can complain because it's too difficult." Indeed, in the face of strong rivals such as Toyota and Honda, as well as many patent barriers, the only way out for China automobile brands is to face difficulties.
Because, with the release of version 2.0 of China New Energy Route, it has been determined that hybrid technology will be the way out for traditional internal combustion engines. By 2025, hybrid new cars will account for half, and by 2035, there will be no traditional fuel vehicles in the new car market. So for a long time in the future, we will all see mixed play. However, Toyota Honda's current market in China adds up to 300,000 new cars a year. You know, according to the national plan, the market capacity of the hybrid power sector will be 8-9 million in 2025. No one dares to ignore such a big market.
Great Wall can produce mass production hybrid technology with completely independent intellectual property rights in less than three years, and its gold content is not lost to Toyota THS, Honda i-MMD and Nissan e-Power. I have to say that it has a lot of investment and high efficiency. So, be sure to praise it. After all, it is related to the core competitiveness of China automobile market in the coming decades.
Of course, specific to the actual performance of the product, we still have to wait for the hybrid new car of Great Wall to go on the market, and then share it with you further.
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