Since the birth of the Lamborghini SV family, the various car series with the "SV" label have been brought into the vortex of the pursuit of the fastest speed, the success of the Aventador SV series has made more people aware of the concept of "SV", and the Aventador SV model has been born for the track after the name "Jota". How does Lamborghini Aventador SVJ justify itself? The answer is the production car lap record at the 6'44'''97 Nürburgring Nordschleife.
To achieve such results, a set of strong "hearts" is essential, with a 6.5-liter naturally aspirated V12 engine producing a huge 566kW (770PS) at 8500rpm and 720N·m at 6750rpm. Achieve 0-100km/h2.8 seconds, and the speed exceeds 350km/h. In addition, the Aventador SVJ has a secret weapon, which is the ALA system.
ALA, full name Aerodynamics Lamborghini Active, is Lamborghini's epoch-making active aerodynamics. Aventador SVJ's ALA system, in the front and rear parts of the car with a set of electric motor-controlled deflectors, its operation is controlled by the driving dynamics of the LDVA 2.0 central computer coordination, when the brake deceleration or high-speed cornering, the front and rear ALA deflectors will be in the closed state, the front of the spoiler and the fixed large tail, the huge downforce generated by the Aventador SV is 40% higher, providing the best conditions for brake deceleration and cornering stability When accelerating and high-speed cruising, the front and rear ALA guide plates will be opened, the front guide plate allows the air flow through the preset channel of the car body, reducing the downforce of the front axle, the air flow through the specially designed bottom part will also produce vortex, reduce the body wind resistance, as for the ALA guide plate at the end of the engine compartment, the bottom of the big tail column, can also reduce the air resistance at high speed, offset the strong downforce brought by the fixed spoiler component, and at the same time produce the impact of large air resistance, improving the driving performance at acceleration and high speed.
In addition, the ALA system rear set of guides has another important task, that is, according to the instructions of the LDVA 2.0 computer, the control guide plate diverts the air flow to the left or right to stabilize the trend when running at high speed. For example, when running the left corner at high speed, the body inertia tilts to the right, and LDVA 2.0 can indicate the left guide plate of the ALA system tail within 0.5 seconds to open, so that the air flow is quickly discharged through the left rear channel, which will increase the downforce on the left rear wheel, suppress some of the body tilt phenomenon, and make the high-speed cornering ability stronger.
The ALA system is not the most advanced active aerodynamic system today by relying on these seemingly unskilled valves alone, but in fact, there are many profound mysteries in it, and then explain how the ALA system works in a simple and grand way. First of all, from the beginning of the previous spoiler, the working state of ALA is mainly divided into two types, the maximum downforce and low resistance, when the valve of the current spoiler is closed, it can greatly reduce the air flow into the chassis, and the next road can only go on the road, so the air flow can only pass above the vehicle, which is the state of maximum downforce, and obtain higher cornering speed and handling. You imagine, when you are carrying a heavier person, although the weight is pressed on your body, but it is your shoes that are touching the ground, the greater the weight, the higher the friction between the shoes and the ground, the smaller the chance of slippage, and the invisible downforce is to make the tire tightly pressed against the ground, the greater the friction, the higher the grip, so that the explanation will not be clearer.
Downforce is a double-edged sword, it is indeed able to increase the cornering speed and control, but the greater the downforce means the greater the resistance, but also reduces the acceleration and extreme speed in the straight line (let you run 50 meters on your back, you can't run fast), then ALA will enter another state, low resistance. When this door is opened, a part of the air flow returns to the chassis through this secret passage, and the downforce acting on the body is naturally reduced, and the drag is reduced to achieve higher speeds in the straight. In the past two years of supercar, the active front spoiler has become more and more common, the working principle is easy to understand, the low speed off and high speed opening, the essence of the ALA system, mostly lies in the innovative design of the rear wing.
Just look at the appearance of this tail is confusing, where the active aerodynamics is, obviously just a fixed and non-adjustable carbon fiber tail, but if you say that this is the first time Lamborghini uses the hollow forged carbon fiber tail, so that you know that there is a dry inside. As in the front, the downforce is increased or decreased by opening and closing the valve, the electric valve is installed inside the tail, and the hollow structure allows the air flow to pass through the inside of the tail and outflow from the inside of the tail, yes, yes, it is an outflow. When the valve is closed, the tail wing plays the same role as a traditional stationary tail, creating maximum vertical downforce, which is no longer well explained.
Comparing the airflow directions of the two charts, red represents downforce and blue represents low resistance. When the valve is opened, the air flow flows out through the inside of the tail wing, and the blue low-resistance air flow is hard to break up the red downforce air flow, leaving only the windward angle above the tail wing to obtain downforce, while the air flow below the tail wing no longer has downforce, and the DRS system of the air flow towards F1 is somewhat similar, DRS is to adjust the angle of the tail to reduce air resistance, and get faster speed in the straight.
As for the situation in which the ALA system is opened and closed, it is mainly adjusted by the computer according to the current driving mode, in the Strada mode, the electric valve will automatically open at a speed of 70km/h to obtain the lowest driving resistance. In Sport mode, it is also opened at 70km/h, but at 180km/h it will be closed to maximize downforce, and it will not be reopened until 310km/h, because it requires higher speed.
Of course, these active airflow control technologies derived from racing cars can only be seen at the speed level of the race level, and the general street speed, although it can only be talked about on paper, but for the world's 900 SVJ lucky people, it is difficult to describe the satisfaction of having a "big bull" with strong performance, limited production and contemporary peak technology.