Kinetic energy recovery system, abbreviated as kers in English. Pen ~ fun ~ pavilion www.biquge.info

The main function of this system is to store the braking energy of the body and use it as auxiliary power release during acceleration. In Formula 1, the system actually converts the energy of the braking step into electricity and stores it in the battery, which can be used to provide about 80 additional horsepower to the car in about 6.5 seconds.

We assume that the top speed of the car on the straight can reach 300 km/h, and with this additional 80 horsepower, the top speed can reach 320 km/h, which is an additional 20 km/h.

Of course, the 20 km/h speed can only be reflected in the top speed, after all, the extra 80 hp only takes 6.5 seconds, and it will take a time to accelerate.

In Formula 1, this system can only be used in the straights in a lap, but under certain conditions, the 80 hp is very useful. For example, when overtaking on the straight, the extra 80 horses can have a decisive effect; At the start, for example, an extra 80 hp would give the car a 10-metre advantage.

The 2009 season, hailed as the biggest rule change in Formula 1 in recent years, saw the reintroduction of slick tyres, the redefinition of the height and width of the rear wing, the elimination of mid-season testing, the restriction of wind tunnel testing, and the introduction of a kinetic energy recovery system.

It's just that at the moment, the technology is not yet mature for Formula 1 cars. Even if it is a manufacturer team that can produce its own engine, it is still in the experimental stage, after all, the racing engine is a precision machine, from design to experiment to production all have strict control, suddenly to add a kinetic energy recovery system device, it is certainly not to say that you can add it.

So far, Ferrari and other manufacturers have come up with kinetic energy recovery systems, but they are not the final product, this system is still very unstable, and independent teams do not have the ability to produce their own racing engines, and the development progress of kinetic energy recovery systems is much slower. Even Red Bull Racing's design guru Nuvey has openly stated that he is reluctant to use a kinetic energy recovery system.

The weight of the kinetic energy recovery system is 50 kilograms, especially the battery that stores energy is very heavy. The weight of a Formula 1 car plus the driver is about 610 kilograms, and an extra 50 kilograms is equivalent to a twelfth more weight, which will affect the lap time by at least 0.3 seconds. In the future, with the advancement of material technology, the weight of the components of the kinetic energy recovery system will be reduced to less than 30 kilograms, which will gradually be accepted by the fleet.

Of course, the above is only a theoretical description, in fact, the materials of Formula 1 cars are very light, and even the ground is made of carbon fiber, so it is not uncommon to see a person in the pit lane carrying a nose or tail of a car.

F1 rules require that the weight of the car plus the driver must reach more than 600 kilograms, under modern material technology, all racing cars can not reach this weight, so the car needs to add a certain amount of weight to counterweight, and the kinetic energy recovery system device can just offset some counterweights, so the impact of installing the kinetic energy recovery system on the speed of the car is not as great as theoretically.

The main reason for the team's reluctance to use the kinetic energy recovery system is not the weight, but the main thing is that it will change the aerodynamic layout of the car, in addition to the technical immaturity. Although the components of the kinetic energy recovery system are installed inside the car, which has no effect on the shape of the car, it does affect the counterweight system of the entire car, for example, the original counterweight is in the front, and now it is placed in the back, and the entire aerodynamic layout of the car is affected, which means that the data needs to be recalculated, the wind tunnel test is re-conducted, and the test of the car is re-conducted. However, in the new season, the mid-season testing was eliminated and the wind tunnel tests were restricted, so for the team, I would rather not use the kinetic energy recovery system, the extra 80 hp, and not change the aerodynamic layout of the car.

……

On 29 March, the first round of the 2009 Formula 1 Championship kicked off at Albert Park.

Before the race even began, last year's defending Formula 1 champion was penalized for changing the gearbox and started from 18th place. Toyota, which had a strong qualifying performance, was also penalized for using a variable rear wing, and they had to readjust the car's parts and start from the pits. There is a speed limit in the pits, and the pit start is definitely going to be slow on the track, which means they will start in the last two.

The car was pushed onto the track and reporters flocked to it, not missing the last chance to get up close and personal with the car before the race.

Teams are more concerned about what tyres their opponents are using, and they can judge what strategy their opponents will use by different tyres.

The insulated covers of the tyres were removed from the two Ferrari cars, and the green line on the tyres indicated that Ferrari was using a softer tyre.

"Ferrari are on supersoft tyres and they're really going to get off the wheel." Ross Brown's voice rang through his headphones, and he paused, then continued: "The track temperature is 31 degrees Celsius, the air temperature is 21 degrees Celsius, the weather is sunny, and it doesn't look like it's going to rain today." This temperature is perfect for medium tyres, but the ultra-soft tyres will hold up for a few more laps. I saw that the safety car was out of the pit and the warm-up lap was about to start, good luck......"

The safety car emerges from the pit lane and will lead all the cars through a lap of warm-up laps.

After the warm-up lap, all the cars returned to the starting point and the red lights hanging in front of them came on.

This is the start signal, there are five red lights, which will be lit up in turn, and when all five red lights are turned off, the race will begin.

"This is Zhang Guan's first race start, will he nervously step on the accelerator? Then be overtaken by other cars! Maybe he'll crash on the start and just quit the race? The reporter who "expressed his personal opinion" kept cursing Zhang Guan in his heart.

The spectators had fallen silent, and everyone was still staring at the track, waiting for the moment of starting.

Finally, all five red lights went out, the roar of the engine rang out, and a plume of smoke appeared behind many of the cars, which is a sign of incomplete gasoline burning, which is common at the start.

"Zhang Guan! The start went smoothly! No mistakes! Hold the first! (To be continued.) )