In December last year, Great Wall Motors announced a new lemon mixed DHT technology, and Teacher State also brought us a timely analysis (click here to review). In order to let everyone ‘s innovation in the Great Wall, Great Wall Motor has been dismantled by a lemon mixed DHT system on March 2. The relevant person in charge of the Great Wall Automobile Technologies, together with the guests, split the overall design of lemon mixed DHT, and sharing its technical advantages, working principles, and user experience.
Song Dynasty (middle), vice president of Great Wall, introduced lemon mixed DHT technical characteristics
“Energy Saving and New Energy Automobile Technology Road Chart 2.0” pointed out, For a long time in the future, the mixing technology will become the dominant force of my country. The Great Wall Automobile has developed lemon DHT technology, which is to meet this trend and meet the diversified needs of global users.
According to the official introduction of the Great Wall car, lemon mixed DHT is a mixed technology that can be taking into account performance and efficiency in the full speed, all scenes. The entire system architecture can be summarized as “1-2-3”, a set of DHT high integrated degree oil and electricity mixing systems, two power architecture, and three sets of power assembly for different level models.
Lemon mixed DHT total 
The main components of lemon mixed DHT include: 1.5L / 1.5T mixed special purpose Engine, Dual Motor Controller, DHT Module, High Specific Power Battery.
1.5L / 1.5T mixed special engine, the former maximum power is 75 kW, matches the 100 kW DHT module, the system integrated power is 140-170 kW; the latter maximum power is 115 kW, match 130 kW DHT module, system Integrated power 180-240 kW.
The 1.5L engine is shown in this dismantling live broadcast, which uses Atkinson circle, external water-cooled EGR, compression ratio reaches 13: 1, and has been reliable for up to 3000 hours. Sexual verification, ensuring efficient and reliability.
Dual Motor Controller
In addition, the dual motor controller displayed in this dismantling can be described as a “central brain” of lemon mixed DHT. It is equipped with a new generation of high-altitude British TC38 series processor chips, with Great Wall Self-developed control algorithm, the energy flow of the system to achieve scientific and reasonable control. 
DHT module
and the DHT module can be understood as a “transmission device” of lemon mixed DHT, including a speed reducer, clutch, shifting mechanism And dual motors. It uses a dual electron pump design that can adjust the opening and stop of the electronic pump based on the vehicle demand; use single-integrated design, which is lower than the double clutch, and the lubrication is lower. Moreover, it is very small, and more than 50% is reduced compared to conventional DCT.
Dual motor
The dual motor power system is also included in the DHT module. The motor uses high magnetic resistance torque design concept. It is more than 20% more magnetic steel for ordinary permanent magnet motors to achieve lightweight purposes; card-type flat line design, tank full rate up to 70% or more, effectively enhance motor power density; Short windings, optimize air gap harmonics, reduce electromagnetic force, improve 48 and 96th-order high frequency noise, NVH performance industry is first-class; low loss 0.27mm silicon steel sheet, low iron loss is 17% more, realize double 85 A percentage of high efficiency zones.
In addition, the lemon mixed DHT core components also include power batteries that are powered by PHEV architecture four-wheel drive models. The energy density exceeds 160 kilowatts / kg, providing up to 200 kilometers of pure Equivalent speed. Supporting and discharging, supporting 11 kilowatts of AC charging power and DC fast charge, 30 minutes can charge 80%, and have a maximum 246 kilowatt discharge power, and there is a warranty for 8 years.
According to the Great Wall car, lemon mixed DHT will have more working modes to deal with different road conditions and scenes. 
Pure electric travel mode
pure electric drive and series drive, is responsible for driving, engine does not work or only responsible for “power generation”, mainly responding Low speedWalk away from the parking situation. This makes it possible to give full play to the efficiency of the motor and the rapid response, so that the engine is maintained in the optimum fuel efficiency interval, improve fuel economy.
Engine Direct Drive Mode
Engine direct drive, mainly used in urban loop, high speed and other scenes. Under the circumstances of relatively “steady state”, the comprehensive efficiency of the engine direct drive should exceed the series, and the oil is 10% -15%. Moreover, the engine direct drive has an economic block, the power stop is optional, and it is possible to accelerate the smooth cruise and the middle of the road, respectively, to achieve the “shift” effect similar to the fuel vehicle, and perfectly combine power and economy.
Parallel drive, mainly responding to a short time high load emergency acceleration. Avoiding the engine itself is too high, providing additional power support from the motor, outputting the engine to maximize power.
Energy recovery mode 
Energy recovery, when it is necessary to decelerate, the kinetic energy can be converted into electrical energy to electrically charge the battery. , Recover the energy of waste when braking.
Wey brand new compact SUV will take the lemon mixed DHT
It is reported that the first product is equipped with lemon mixed DHT, will be wey The brand is about to launch a new compact SUV, the integrated fuel consumption is only 4.7L.
■ State Review
Although the country is tilted to the pure circuit line in the new energy policy level, it is actually in the fact that in the general trend of energy saving and emission reduction. An effective energy route.
Many countries have proposed to completely stop the fuel car in 2030, in fact, the fuel truck is switched into a mixed / pure electric power. Instead of completely replaced fuel vehicles by pure tram.
At the same time, we can also see that there is a long-term situation in the HEV field that is being broken by Toyota / Honda, and the Great Wall Lemon DHT and BYD DM-I represent the advanced technology of my country’s independent brand in hybrid technology. explore. Let us look forward to my country’s auto companies bring more competitive hybrid models!