With the efforts of the teams in the R&D center, Zhengxin Range Rover Land Rover has been built into a flagship SUV model with very high reliability and high-end luxury. Pen, fun, pavilion www. biquge。 info

In terms of power, the design team divided the D4D engine into a V84.4L version based on the 3.0V6 engine mounted on the Land Cruiser. In order to distinguish them from the Land Patrol positioning, the R&D team installed a supercharging device for the two engines with the starting point of improving power, ensuring operability and reliability.

This power enhancement method of mechanical supercharging is the first time that it has appeared in the engine of Zhengxin's model.

Turbocharging is a way to use the exhaust gases from the engine to impact the turbine, so as to compress the intake air and increase the combustion in the cylinder.

So what's going on with this supercharging?

The principle is the same, but the way is different.

The problem of low air intake efficiency in the high-rpm zone of naturally aspirated engines is solved from the basic key point, which is to find a way to achieve air pressure in the intake air.

Like turbocharging, supercharging is also to overcome valve interference resistance, without changing the intake manifold, valve, axle size, without changing the intake manifold, valve, axle size, put pressure on the intake system, so that more air can be injected with more fuel injection, increasing the combustion performance of the engine.

As for the specific method, the air is compressed by a pair of rotors in relative motion, and then cooled by an intercooler and injected into the intake manifold and injected into the engine.

This type of supercharging is much simpler than turbocharging. What are the benefits of a simple structure?

That's right, reliability!

And because of the different ways of working, there is a clear difference between supercharging and turbocharging in terms of power output. Mechanical boost intervenes in a more direct way, allowing it to get the boost buff at low rpm, and the power output of the boost is also proportional to the speed of the crankshaft. In other words, the power output of the supercharged engine increases with the increase in speed. Therefore, the power output response is fast, explosive power can be obtained at low speeds, and there is also the linearity of a naturally aspirated engine in the middle and rear speed sections.

Turbocharging, because the turbocharging process mainly requires high-speed exhaust gases to impact the turbine to obtain the turbocharger buff, so it has a certain hysteresis.

Although Zhengxin's current electronic turbocharging system can solve such a problem, for the sake of easy maintenance and reliability, Li Fanyu still decided to use mechanical supercharging on the D4D engine upgraded from X aluminum alloy.

Having said all that, supercharging looks like it's better than turbocharging. Why is turbocharging now most popular on the market?

thought of manufacturing costs, and fuel consumption.

Although supercharging can make the power response more direct, the low-speed explosive force is better, and the power output is more linear. However, because its working mode determines that it is necessary to increase the amount of fuel injected in the cylinder while supercharging, it is not conducive to the control of fuel consumption. In addition to the mechanical supercharging of the rotor processing technology requirements are higher, will directly increase the cost of the engine, so this supercharging method has always only existed in the luxury models with high requirements for handling experience.

These are two diesel engines, and in terms of petrol engines, Zhengxin has directly implanted an enhanced version of the V8 engine on the F150 for Range Rover, with a displacement of 5.0L. The gasoline base model is self-priming, and the performance version is also supercharged.

DIESEL 3.0TV6 PRODUCES UP TO 265 HP AND UP TO 600 NM OF TORQUE. 4.4TV8, 350 HP AND 750NM. OF THE TWO V8 VARIANTS, THE 5.0T SUPERCHARGED ENGINE MAKES 380 HP AND 550 NM OF TORQUE.

These four engines make up the power camp of Range Rover.

And it is these four engines made of Zhengxin's latest X aluminum alloy, combined with an 8-speed automatic transmission, that make the Range Rover's speed directly achieve a performance that is not inferior to that of a performance car.

After previous tests, the four powered versions of the Range Rover accelerated to 100 km/h in 7.5, 6.5, 6.5 and 5.0 seconds.

In terms of bodywork, Range Rover inherited the A8's aluminium alloy lightweight body in order to reduce the weight of handling and ride comfort. The body size has reached 4999mm, 2073mm, 1836mm in length, width and height, and the wheelbase has reached 2922mm in "quasi-three meters". Such a size, combined with the re-planned interior layout of Zhengxin engineers, provides a spacious and luxurious space for the entire cab!

Driving above, the all-terrain feedback system is the main technology of the Range Rover. Combined with a differential and central locking, the Range Rover's off-road performance is up to the level of land patrolling. But because of the intelligence of the all-terrain feedback system, the Range Rover is definitely a complete blow in terms of comfort. This is the most obvious difference between the two cars in terms of performance, aside from power. The air suspension, which is standard across the range, further reflects Range Rover's luxury positioning.

The interior is another big selling point of the Range Rover!

The delicate center console covered in leather and the steering wheel give people a delicate and refined look.

All models come standard with a panoramic sunroof and leather seats, but the leather material is slightly different to distinguish the class. The low-end version is made of the first layer of cowhide, and the high-end version is made of delicate calfskin hand-cut and sewn by Boyuan Company.

Because there is no particularly excellent car audio manufacturer in Zhengxin's parts suppliers, Zhengxin has adopted the internationally renowned high-end audio manufacturer, Mercedes-Benz's royal audio supplier - German Burmester company to reach a procurement contract. The Range Rover was fitted with a hi-fi surround sound system consisting of 16 speakers. Combined with Range Rover's sophisticated assembly and soundproofing technology, the sound is turned on while sitting in the cabin, and even the illusion of sitting in a live concert can be created.

It can be said that the sense of luxury is everywhere in the entire carriage, but this luxury is not complicated.

There is no such jewels, extravagance. When you open the doors, you can see that they are all delicate light leather, the seats are edged with first-class black threads, and the middle and sides of the dashboard are decorated in pressed mahogany like a fake, and the shape is simple and straight, like high-end furniture. Between the leather and wood, there is a frosted but slightly reflective aluminium accent.

In order to add some sense of technology to the car, Zhengxin's engineers designed a new control system. The combination of the transmission knob case and the central control touch screen adds a sense of technology to the interior of the Zhengxin Land Rover Range Rover.

In addition, the engineers have integrated ventilated and heated massage seats on the Range Rover, Baiwei's latest in-car imaging system, and magnetic door suction. In order to make it more convenient for consumers to get on and off the Range Rover with a large ground clearance, an automatic retractable welcome pedal has been added to the high-end models.

It all comes together to form a luxury SUV in the world. Zhengxin's first high-end SUV has been built into another luxury-level benchmark model after the A8!

And why is this car carrying Li Fanyu's ambitions?

Because Zhengxin's current production capacity has kept up, the manufacturing cost of the car has been greatly reduced!

Even if it uses the high-cost X aluminum alloy engine, the top technology and technology. The cost of the four versions of Range Rover has also been successfully controlled between 30 and 60 yuan!

On the sixteenth day of the first lunar month, when the first full moon of the new year, the first product Range Rover, a new brand of Zhengxin Group, was officially launched nationwide.

The prices of the 3.0T diesel supercharged version, the 4.4T diesel supercharged version, the 5.0L naturally aspirated version, and the 5.0T supercharged version are 638,000, 698,000, 888,000 and 988,000 respectively!

Compared with the domestic Mercedes-Benz GLS, Europa League LM5, Rickorn Pilot, Acura ZDD, Infiniti QV90 and other medium and large luxury SUVs, the price is almost half cheaper!

Range Rover, Zhengxin's heavy punch aimed at the luxury SUV market has been swung fiercely!