ㄏ With the world's major countries to set out the time schedule of the exit of fuel vehicles, the trend of the car into electrification has taken shape, although many of the use habits of electric vehicles are different from traditional cars, such as high and low speed energy consumption, throttle and brake reaction, etc., long-distance travel also needs to be fast charged and destination charging for different planning, however, whether you like it or not, electric vehicles are already the trend of the times.
Of course, the wind direction of electrification is also blowing to the racing track, among them, the latest electric vehicle series Pure ETCR, is based on the existing WTCR World Touring Car Cup (World Touring Car Championship), electrified, in terms of rules, the electrical specifications of the car adopt a uniform setting, relatively more competitive, and the requirements for the driver's technology and tire control are more stringent.
The arena of electric vehicles, Pure ETCR
The current Pure ETCR racing car, including motors, batteries, electronic control systems are uniformly supplied by the designated suppliers, its electrical performance is the same, Pure ETCR racing cars are rated at 300kW (about 402 horsepower), peak power of 500kW (about 670 horsepower), rear-wheel drive, peak power can be imagined similar to Boost mode or supercharging function, can increase horsepower output in a short period of time, but can not be maintained for a long time, but also consume a lot of power.
Commonly known as the three-electric system, that is, the motor, battery, electronic control, in the Pure ETCR racing car has a unified specification, but in the body, chassis, and part of the mechanical structure, it is developed by the participating car manufacturers; and for the participating teams, Pure ETCR in the vehicle center of gravity, drive mode, output characteristics, etc., are very different from the WTCR, more test of the integration and technical capabilities of electric vehicles.
Quiet but unusually fierce competition field
When it comes to the characteristics of electric racing, if there is live experience, "quiet" is definitely the first impression; however, under the low-frequency sound of electric motors, pure ETCR competition is extremely fierce, first of all, because all cars use the same power system, short-term contact, close attack and defense is commonplace, and some technical differences between drivers will not be over-amplified because of the power gap, which is quite watchable.
Pure ETCR all cars use the same power system, short contact, close attack and defense is commonplace, and some technical differences between drivers will not be overmagnified by the power gap, which is quite visible.
Secondly, the Torque Value output of pure ETCR cars is up to 960Nm, and the peak power (horsepower) is close to 2 times that of WTCR, which means that the car has a higher limit in straight lines, corners, and re-acceleration, etc., and the higher limit values represent that the competition in speed, attack and defense, and in and out of the corner will be more intense; in addition, Pure ETCR cars are also extremely strict in terms of tire performance, stability and durability.
The Formula One championship record in Formula 1 has not been broken
Since the beginning of motorsport, regardless of the form or power source of the vehicle, "tires" have silently played a pivotal role, of course, competitive events have also promoted the evolution of tire technology; among them, Goodyear Goodyear Tires from the United States, since 1908, has provided the world's first production car Ford T series of original tires, and continues to participate in global motorsport, including the 350-time championship record of Formula 1 formula one that has not been surpassed so far, NASCAR The longest sponsor ever record, as well as a 14-time winner of the Lihman 24 Hours, and Goodyear is currently the exclusive tyre sponsor for WTCR and Pure ETCR.
An electric vehicle race that tests tire manufacturers' technology even more: Pure ETCR
Purely from the perspective of the type of event, whether it is Formula 1, NASCAR, or Liman and WTCR, Pure ETCR, etc., its demand for race tires, size levels, durability, etc. are not the same, and even have a certain degree of difference, for Goodyear, how to adapt to different events, to create the most suitable tires, is a very harsh test.
In the case of the latest electric vehicle series Pure ETCR, although the vehicle is the basis of the WTCR, due to the characteristics of the electric motor with almost instantaneous full torque output, as well as greater power power, the peak output of the Pure ETCR car is even nearly 2 times that of the WTCR, which requires more durability, grip and stability of the tire.
Environmental sustainability is the principle, and a single racing tire is used throughout the course
Pure ETCR events, driven by pure electric, break many traditional frameworks in the formulation of rules in order to pursue the principle of sustainable environment; for example, Pure ETCR regulates tire suppliers to provide only a single racing tire in order to reduce the waste of resources, without distinguishing between soft, hard, rain, sunny and other versions.
For tire suppliers, shrinking the version of the racing tire means that it is necessary to design a pure ETCR car that can adapt to different climates, temperatures, conditions, and must load about 30% heavier than the WTCR, while the maximum output of nearly 2 times more horsepower, from this standard, Pure ETCR race tire equivalent development and production is a very harsh test for manufacturers.
Eagle F1 SuperSport Pure ETCR from the road, challenging track
Goodyear's long tradition is to improve the quality of commercially available tires through the technology accumulated in motorsport, and after the high-tech adopted in the racing track and the application of commercially available tires, a positive cycle is formed, which can be said to create a win-win situation for Goodyear and consumers.
However, in fact, the eagle F1 SuperSport Pure ETCR race tire technology is to reverse the past from the racing track to the general road of the technical decentralization model, Eagle F1 SuperSport Pure ETCR race tire is to a considerable extent by the existing Eagle F1 SuperSport commercially available tire technology, to be optimized and upgraded.
Due to the pure ETCR schedule using a single tire specification, Goodyear's "Eagle F1 SuperSport Pure ETCR" racing tire developed for Pure ETCR races can adapt to a variety of climates and environments such as rain, sunny, dry, and muddy, just like the Eagle F1 SuperSport ultra-high performance street tire, which must be able to maximize performance in various road conditions and weather conditions to meet the supercar owner's desire for speed and safety.
As mentioned earlier, the Eagle F1 SuperSport Pure ETCR race tire is based on the existing Eagle F1 SuperSport commercially available tire, and then strengthens and improves performance. You can imagine the combination of skinhead tires, half rain tires, rain tires and other needs, and in high and low temperature environments can play the ultimate grip performance, although it sounds a little unreasonable, but Goodyear finally through the power of science and technology, developed eagle F1 SuperSport Pure ETCR.
Eagle F1 SuperSport Pure ETCR is specially tailored for electric racing cars, rubber material using Race Pro-based formula, and the use of differentiated design on the inside and outside of the tire, so that the tire can be used in the cornering to meet different degrees of grip needs to maximize the effect; in addition, including the tread structure, carcass has been strengthened, not only material innovation, structural design has also made a breakthrough, so that Eagle F1 SuperSport Pure ETCR Through the hardening of the race, it can meet the ultra-high performance needs of the new generation of electric racing.
The Pure ETCR season came to a successful conclusion
With the end of the Pau-Arnos race in France, the 2021 Pure ETCR season also came to a successful end, and in the end, Swedish driver Mattias Ekstr m won the driver's points championship, and the constructors' points championship was taken off by Cupra X Zengo Motorsport.
Among them, it is quite interesting that Cupra, a performance sub-brand of the Seat brand, uses many of its commercially available cars with Goodyear Eagle F1 SuperSport series products as original tires, and the Cupra e-Racer race car used by the championship-winning Cupra X Zengo Motorsport team is also paired with Eagle F1 SuperSport Pure ETCR.
With the end of the Italian, Spanish, Denmark, Hungary, France and other races, it has also been verified that under different climates, environments and tracks, the Eagle F1 SuperSport Pure ETCR tire can meet the needs of the car; Sebastian Trinks, project leader of Goodyear Pure ETCR and WTCR, said that congratulations to the winning team and drivers, Goodyear itself has also gained considerable experience from the event And look forward to the 2022 season to grow with the participating partners.
The future trend of electric power
According to Goodyear official information, Eagle F1 SuperSport at the beginning of the design, that is, to consider the future demand trends of electric vehicles, including weight, instantaneous large output, high power, vertical and horizontal stress, etc., and for these needs, Eagle F1 SuperSport has carried out differentiated design, and finally obtained the high-performance electric vehicle certification of many car manufacturers, and the Eagle F1 SuperSport Pure ETCR race tire is also based on it 3. Developed for upgrading and enhancement.
Luxury, high-performance brand such as Porsche, Audi, Tesla, etc., its high-performance electric models have partnerships with Goodyear, and many car series use the Eagle F1 series as the original tire, such as the Audi e-tron GT quattro and RS e-tron GT, output up to 650 horsepower, stationary acceleration to 100 km / h only .3.3 seconds, and the weight of nearly 2.4 tons, in such conditions, tires to maintain high load, high strength, High grip and rolling resistance are considerable challenges for Goodyear, and Goodyear has successfully overcome the challenge and developed a number of original tire models for electric vehicles that meet the original factory certification.