All-round Athlete

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Kinetic energy recovery system, the English name is abbreviated as ke.

The main function of this system is to store the braking energy of the body and use it as auxiliary power during acceleration. Used in a Formula One car, this system actually converts the energy of the car when the car brakes into electric energy and stores it in the battery. After the energy is stored, it can be used for about 6.5 seconds. About 80 horsepower.

This figure is more general for the average person. To give a more specific example, the car will definitely accelerate at full speed on the straight. We assume that the maximum speed of the car on the straight can reach 300 kilometers per hour, and this extra The maximum speed of 80 horsepower can reach 320 kilometers per hour, which is a speed of 20 kilometers.

Of course, the speed of 20 kilometers can only be reflected in the maximum tail speed. After all, the additional 80 horsepower is only 6.5 seconds, and acceleration also requires a time process.

In Formula One races, this system can only be used on straights in a lap, but under certain conditions, the 80 horsepower is very useful. For example, when going straight ahead, the extra 80 horses can play a decisive effect; for example, when starting from the start, the extra 80 horsepower can give the car a ten-meter advantage.

The 2009 season is hailed as the season with the most changes to the Formula 1 rules in recent years. This season, the bald tires were re-enabled, the height and width of the rear wing were redefined, the mid-season testing was cancelled, and the wind tunnel test was limited. At the same time, the kinetic energy recovery system was also activated.

But for now, this technical sport is not yet mature in Formula One racing. Even the manufacturer's team that can produce engines is still in the experimental stage. After all, the racing engine is a precision machine. From design to experiment to production, there are strict controls. Suddenly a kinetic energy recovery system device is added. Say it can be added.

So far, although Ferrari and other manufacturers’ teams have come up with a kinetic energy recovery system, it is not the final product. This system is still very unstable, and independent teams do not have the ability to produce racing engines by themselves. Much slower. Even Red Bull's design master Newey said publicly that he did not want to use the kinetic energy recovery system.

The entire weight of the kinetic energy recovery system device should reach 50 kg, especially the battery that stores energy is very heavy. The weight of a Formula One car plus the driver is about 610 kilograms. Fifty kilograms at a time is equivalent to one-twelfth of the weight, which will affect the lap speed for at least 0.3 seconds. In the future, with the advancement of material technology, the weight of kinetic energy recovery system components will be reduced to below 30 kg, which is gradually accepted by the team.

Of course, the above is only a theoretical statement. In fact, the material of Formula One is very light. Even the site uses carbon fiber, so the maintenance area often sees a person who can carry a front nose or tail of the car.

The f1 rule requires that the weight of the car plus the driver must reach more than 600 kg. Under modern material technology, all cars cannot reach this weight, so the car needs to add a certain weight to counterweight, and the kinetic energy recovery system device It can just offset some of the counterweights, so the impact of installing a kinetic energy recovery system on the speed of the car is not as great as in theory.

The main reason for the team's reluctance to use the kinetic energy recovery system is not weight. In addition to the immature technology, the main reason is that it will change the aerodynamic layout of the car. Although the components of the kinetic energy recovery system are installed inside the car, it has no effect on the shape of the car, but it affects the weight system of the entire car. For example, the original weight is in the front, and now it is placed in the back, the entire aerodynamic layout of the car is affected. Impact, which means that the data needs to be recalculated, re-tested in the wind tunnel, and re-tested in the car. But in the new season, the mid-season testing and the wind tunnel test were canceled, so for the team, I would rather not use the kinetic energy recovery system, not the extra 80 horsepower, and do not change the aerodynamic layout of the car.

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On March 29, the first race of the 2009 Formula One Championship kicked off at Albert Park Circuit.

The race hasn't started yet. Last year's defending champion of Formula One was punished for replacing the gearbox and started from the 18th place. The Toyota cars that performed well in qualifying were also punished for using variable tails. They had to readjust the parts of the car and then start from the maintenance station. The pits are limited in speed, and the pits must start slowly on the race track, which means they will start in the last two.

The car was pushed onto the runway, and the reporters swarmed immediately, and they would not miss this last chance to get in close contact with the car before the race.

The team is more concerned about what tires the opponents use. They can use different tires to determine what strategy the opponents will use.

The two Ferrari cars removed the heat shields of the tires. The green line on the tires indicates that Ferrari is using a softer tire.

"Ferrari used super-soft tires, and they were really about to start." Ross Brown's voice sounded in the headphones, he paused, and then said: "The current track temperature is 31 degrees Celsius, the air temperature is 21 degrees Celsius, The weather is clear, it looks like it will not rain today. This temperature is very suitable for the performance of neutral tires, but super soft tires will also stick for a few more laps. I saw here that the safety car has walked out of the maintenance area, warming the tire laps It's about to start, good luck..."

The safety car comes out of the maintenance tunnel, it will lead all the race cars through the warm tire lap.

After the tire warming was over, all the cars returned to the starting point, and the red lights hanging in front of them also lighted up.

This is the starting signal. A total of five red lights will turn on in sequence. When all five red lights are off, the race will start.

"This is Zhang Guan's first race start. Will he look nervously and step on the accelerator? Then he will be overtaken by other cars! Maybe he will crash in the start and exit the race?" That name " The reporter who expressed his personal opinion constantly cursed Zhang Guan in his heart.

The auditorium has been quiet, and all the people are quietly watching the track, waiting for the moment to start.

Finally, all five red lights were turned off, the roar of the engine rang out, and a thick smoke appeared behind many cars. This was a manifestation of the incomplete combustion of gasoline and was very common at the start.

"Zhang Guan! The departure was smooth! No mistakes! Keep the first!" (~^~)