At this Beijing Auto Show, we saw a new 3.0T turbocharged engine, which matched a 8-speed automatic gearbox + four-drive system, which is the most powerful power system in the Great Wall, the future Or is equipped with H5 models in Haval H8 or higher. Below based on the information we have learned on site, look at the strength of the future flagship power of the Great Wall.
To divide a piece of a cup in the competitive car market, in addition to rich models, the power assembly that matches the model is also a crucial ring. The jacket brand engine line is relatively complete from small displacement to large dispenses, and the high-power high-power engine of autonomous brands is relatively lacking.
The 3.0T double turbocharged engine launched by the Great Wall can be said to be the front of the independent brand. This is also the flagship power of the future Great Wall, or take the lead in the Haval H8 or the Haval H9 listed in the future. Let's take a look at what technology highlights:
● 3.0 liter double turbocharged engine technology analysis
The 3.0T engine on the booth is independently developed by the Great Wall. The code is GW6K30G. The advanced engine technology is in the collection, such as direct injection in the cylinder, double turbocharged, dual VVT variable valve timing, variable displacement Oil pump, etc. The maximum power of the engine is 220kW, the maximum torque is 480n.m, and the power parameters are simply not inferior to the BMW N55 engine.
Direct in the cylinder. The direct injection technology in the cylinder is the mainstream technology. Relatively compared with the traditional multipoint electrospray technology, the engine uses the engine of direct injection technology, by using the high pressure oil pump into the cylinder directly, sufficient Atomized gasoline is mixed directly in the cylinder, and it can be more accurately controlled, and the fuel efficiency is higher.
High-pressure fuel pumps must be used in the fuel supply system of the in-cylinder direct injection engine in the cylinder directly injecting the fuel. The fuel pump of this engine is arranged on the camshaft, which is also common in the form of layout.
Double turbocharged system. Using turbocharged technology can effectively improve engine intake efficiency, thereby improving engine power, achieving the effect of small displacement high power, naturally being sought after by major manufacturers. This 3.0T engine uses a double turbocharged system that explodes 480 Nm peak torque.
Turbocharger is still a general single vortex trim turbine boost system, slightly more advanced two-vortex tricycle pulp superchargers, but Haval 3.0T engine torque platform turns from 1500 to 4000 revolutions The peak torque is 500 strokes than its own 2.0t, and it is believed that there is a good power performance at low speed.
Invigorating Variable Air Gate Time Technology. The application of variable gas door timing techniques can effectively improve the exhaust gas efficiency, thereby enhancing the performance of the engine, and the application application is also relatively wide. Common ways is to use hydraulic oil to regulate the variable valve timing mechanism to achieve advance or delayed valve opening and closing.
Resin intake manifold. The engine is lightweight is also a direction in which the engine technology is developed. In addition to the means of aluminum alloy cylinders, the resin intake manifold, the resin oil bottom shell is also a means.
Hidden injector. It is more common in diesel engines. This 3.0T gasoline engine injector also uses this arrangement. The advantage is to reduce fuel spurt cylinder wall, reduce oil dilution, and reduce fuel evaporation The temperature in the cylinder increases thermal efficiency, which can effectively use ignition energy to achieve a hierarchical combustion.
Auxiliary electronic water pump. In addition to the conventional belt-driven mechanical water pump, this engine also increases an auxiliary electronic water pump. After the engine stops running, it can continue to operate, help cool the turbocharger, which is conducive to the latency of the turbocharger. At the same time, it is also possible to prevent heat accumulation of coolant boiling problems.
Terminally furnished. Improve the latter of the engine behind the engine, this layout is also used in the Volvo in the Volvo, which is also used (engine tour (12) Volvo T6 engine parsing), which can reduce the vibration of the gas supply mechanism, improve the gas and timing Consistency and accuracy; two to reduce the length of the front end of the crankshaft, facilitate the reduction of the vibration of the front end wheel, improve the engine NVH performance; three to the crankshaft and the sprocket integrated structure, high processing accuracy, no assembly accumulation tolerance, improvement The gear wheel engaged precision reduces timing noise.
Hollow combined camshaft. The camshaft is subjected to hollow treatment in the case of ensuring strength, which can effectively reduce the camshaft weight (the official weighing is less than 40% of the solid cast camshaft), which can reduce the rotational moment of the camshaft, improve timing accuracy.
● 8AT automatic gearbox + 4WD four-drive system
Matching this engine is an 8AT automatic gearbox, from German well-known CF (ZF), and the technology is mature and reliable.
In addition, this power assembly matches Borg Warnan four-wheel drive system. From the field model, this four-wheel drive system can switch between a variety of four-wheel drive modes (such as high-speed four-wheel drive, low speed four-wheel drive, lock four-wheel drive, etc.), and the gear set can also perform torque. Should have a good four-wheel drive performance.
Summary: This 3.0-liter twirl in this Great Wall is in line with the 6-cylinder engine, collecting direct injection, turbocharge, dual VVT, auxiliary electronic pump, etc., and reaches The 220kW maximum power and the peak torque of 480N.m, the strength is not to be underestimated. At the same time, high-end 8AT automatic gearbox and four-wheel drive system are equipped, and the performance performance on the real train is worth looking forward to. As a power system, the current flagship power system, the future, or is equipped with the Haval flagship model H9, in view of the current 2.0T engine on Haval H8, there is a bit of small horses, maybe the Haval H8 will be changed later. The first power system is taken first. Read more
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