KERS - Explained

The Porsche GT3R Hybrid: A Revolutionary Approach to Regenerative Energy

Porsche has been at the forefront of innovation in the automotive industry, and their latest hybrid technology is a testament to their commitment to pushing boundaries. The Porsche GT3R Hybrid is a system that uses two motors on the front wheels to harness rotational energy and convert it into electricity. This unique approach allows the car to generate power through regenerative braking, reducing wear and tear on brake pads and increasing fuel efficiency.

The system works by using the rotational energy generated when the car brakes to turn two motors located on the front wheels. When these motors are in reverse gear, they act as generators, capturing the energy and converting it into electricity. This electricity is then stored in a motor flywheel, which spins up to 30,000-40,000 RPM in just a few seconds. The flywheel is essentially a combination of both mass and motor, designed to maintain its spin for an extended period.

The motor flywheel system is cleverly designed to store energy and release it as needed. A push-button controller allows the driver to activate the system, which then sends the stored rotational energy back into motion. Two 60 kW motors, equivalent to approximately 80 horsepower each, are mounted on the front wheels to provide a boost of power. This power is available for a short duration of around 6-8 seconds, making it perfect for cornering or accelerating on straightaways.

In contrast to conventional battery-based hybrid systems, the Porsche GT3R Hybrid's flywheel approach offers several advantages. For one, it can store more energy per unit weight than batteries, with the 31-pound flywheel producing a staggering 160 horsepower. This is made possible by the fact that flywheels can release extremely high currents quickly, unlike batteries which take longer to charge and discharge. Additionally, the flywheel's compact size and relatively low mass make it an ideal choice for use in cars.

The Porsche GT3R Hybrid system has also been successfully tested on the track, with impressive results in the 24 Hours of Nürburgring. The car's ability to harness regenerative energy has allowed it to maintain a significant lead over its competitors during the grueling endurance race. This technology is not just limited to racing, however - Porsche plans to integrate this system into their production cars, aiming to improve fuel efficiency and reduce emissions.

Other manufacturers have also explored similar approaches, including Formula 1 teams which use ultra-capacitors to store energy. Ultra-capacitors are designed to build up and release electrical charge rapidly, allowing for quick bursts of power. While Porsche's flywheel approach has proven successful in their GT3R Hybrid, the advantages offered by ultra-capacitors make them an attractive alternative for high-performance applications.

In conclusion, the Porsche GT3R Hybrid represents a groundbreaking development in regenerative energy technology. By harnessing rotational energy and converting it into electricity, this system offers a unique solution to reducing wear on brake pads and improving fuel efficiency. As the automotive industry continues to evolve, we can expect to see more innovative approaches like this one, pushing the boundaries of what is possible with electric powertrains.

"WEBVTTKind: captionsLanguage: enhey everyone in this video I'll be explaining Cur or kinetic energy recovery system now the goal of kinetic energy recovery system is to turn the kinetic energy of your vehicle when you stop or slow down from braking rather than turning that energy into heat to turn that into usable energy that you can then use to either power the electronics on your car or accelerate now there's things like regenerative braak regenerative braking which the Toyota Prius uses and what that does is when you break it sends the the energy from your braking rather than turning it all into heat some of it goes to charging your battery so I'm going to look at the Porsche GT3 R hybrid and the kinetic energy system that that uses uh and so what it does is it has two Motors on the front wheels so when you break these motors reverse and when they're reverse they're basically act as generators so when you break you send rotational energy into these motors when these motors r rotate they turn that energy since they're in Reverse they turn that energy into electricity that electricity is then passed to a motor slf flywheel it's kind of a combination of both it's a mass and a motor um which will be sitting in the passenger side that's just for weight balance purposes uh and so what it does it'll it'll spin up this motor this flywheel and then that'll just continue to spin until you activate it so it'll send that rotational energy and you'll have it stored there and it's got these ceramic bearing uh which are very low friction so it can maintain that spin for a good duration and it can spin up to about 30,000 to 40,000 RPM in the Porsche gt3r hybrid now once you activate that energy you can have a little push button which I think is very cool you can just push a button on your steering wheel and it'll turn that rotational energy and it'll basically reverse its function and it will turn that rotational energy into electricity which it will then use to power these two Motors now each of these motors are 60 Kow Motors that's about 80 horsepower a piece that they can add to the front wheels and you can use that for about 6 to 8 seconds according to Porsche Engineers so that's a that's a pretty cool thing to use instead of breaking and turning all that energy into heat on your brake pads you can actually use that energy to re accelerate and get a a bonus almost 160 Hors power uh added for short durations that you can use in cornering or on a straightaway so basically what's going on is you're turning that forward energy of the car into rotational energy when it spins up these motors that rotational energy turns into electrical energy it sends a current to this motor or flywheel that spins up the flywheel and then this just stays rotating then you can activate it turn it back into electrical energy turn that into rotational energy to rotate these motors and turn that back into forward momentum to accelerate your car so it's a very clever system um and there's other methods of doing it it's also used in Formula 1 in Formula One they use ultra capacitors so instead of this flywheel here they've just got Ultra capacitors which can uh build energy and release energy very quickly and so they'll store the energy and then with a push of a button you can release that energy from the capacitor instead of uh a rotating uh disc or flywheel now Hydra is another way of doing it and what that does is you'll have a a system sort of like a pump where you compress a fluid and then you can release that fluids pressure uh in order to power a motor or something like that so those are the three methods of doing it and I was just going over here the flywheel method um and how that works and that's what Porsche has used and they actually have done quite a good job with their their car and it's had decent success especially with fuel economy so now you might be wondering well why would Porsche choose a flywheel approach to a hybrid rather than say a conventional battery method um such as used in a Prius well the thing about a flywheel is it can store more energy uh than a battery for its weight so this flywheel here is only 31 lb yet it can power it can give the car 160 horsepower for about 6 to 8 seconds so that's pretty impressive um that 31 lbs can produce that much power I mean my car is engine doesn't produce that much power and it certainly weighs more than 31 lbs so that's pretty remarkable that it can release that energy so quickly and that's the other Advantage is that it can be charged and discharged very quickly unlike a battery batteries take a little while to charge and discharge they can't just pass out extremely high currents and that's why Formula 1 uses the ultra capacitors because they can make up for this uh difference but Porsche has decided to use the flywheel method and they've actually had great success with it and it's and it seems like a very cool system I just think it's very fascinating that you can have a a button you know like for Boost like you know you have in all the video games it's finally something realistic other than nitrous which is going to just ruin your engine if you use it too many times whereas something like this can be made um somewhat reliable and you can use it over the duration of many hours like Porsche did on the Nur green 24-hour race so it's it's a very cool technologyhey everyone in this video I'll be explaining Cur or kinetic energy recovery system now the goal of kinetic energy recovery system is to turn the kinetic energy of your vehicle when you stop or slow down from braking rather than turning that energy into heat to turn that into usable energy that you can then use to either power the electronics on your car or accelerate now there's things like regenerative braak regenerative braking which the Toyota Prius uses and what that does is when you break it sends the the energy from your braking rather than turning it all into heat some of it goes to charging your battery so I'm going to look at the Porsche GT3 R hybrid and the kinetic energy system that that uses uh and so what it does is it has two Motors on the front wheels so when you break these motors reverse and when they're reverse they're basically act as generators so when you break you send rotational energy into these motors when these motors r rotate they turn that energy since they're in Reverse they turn that energy into electricity that electricity is then passed to a motor slf flywheel it's kind of a combination of both it's a mass and a motor um which will be sitting in the passenger side that's just for weight balance purposes uh and so what it does it'll it'll spin up this motor this flywheel and then that'll just continue to spin until you activate it so it'll send that rotational energy and you'll have it stored there and it's got these ceramic bearing uh which are very low friction so it can maintain that spin for a good duration and it can spin up to about 30,000 to 40,000 RPM in the Porsche gt3r hybrid now once you activate that energy you can have a little push button which I think is very cool you can just push a button on your steering wheel and it'll turn that rotational energy and it'll basically reverse its function and it will turn that rotational energy into electricity which it will then use to power these two Motors now each of these motors are 60 Kow Motors that's about 80 horsepower a piece that they can add to the front wheels and you can use that for about 6 to 8 seconds according to Porsche Engineers so that's a that's a pretty cool thing to use instead of breaking and turning all that energy into heat on your brake pads you can actually use that energy to re accelerate and get a a bonus almost 160 Hors power uh added for short durations that you can use in cornering or on a straightaway so basically what's going on is you're turning that forward energy of the car into rotational energy when it spins up these motors that rotational energy turns into electrical energy it sends a current to this motor or flywheel that spins up the flywheel and then this just stays rotating then you can activate it turn it back into electrical energy turn that into rotational energy to rotate these motors and turn that back into forward momentum to accelerate your car so it's a very clever system um and there's other methods of doing it it's also used in Formula 1 in Formula One they use ultra capacitors so instead of this flywheel here they've just got Ultra capacitors which can uh build energy and release energy very quickly and so they'll store the energy and then with a push of a button you can release that energy from the capacitor instead of uh a rotating uh disc or flywheel now Hydra is another way of doing it and what that does is you'll have a a system sort of like a pump where you compress a fluid and then you can release that fluids pressure uh in order to power a motor or something like that so those are the three methods of doing it and I was just going over here the flywheel method um and how that works and that's what Porsche has used and they actually have done quite a good job with their their car and it's had decent success especially with fuel economy so now you might be wondering well why would Porsche choose a flywheel approach to a hybrid rather than say a conventional battery method um such as used in a Prius well the thing about a flywheel is it can store more energy uh than a battery for its weight so this flywheel here is only 31 lb yet it can power it can give the car 160 horsepower for about 6 to 8 seconds so that's pretty impressive um that 31 lbs can produce that much power I mean my car is engine doesn't produce that much power and it certainly weighs more than 31 lbs so that's pretty remarkable that it can release that energy so quickly and that's the other Advantage is that it can be charged and discharged very quickly unlike a battery batteries take a little while to charge and discharge they can't just pass out extremely high currents and that's why Formula 1 uses the ultra capacitors because they can make up for this uh difference but Porsche has decided to use the flywheel method and they've actually had great success with it and it's and it seems like a very cool system I just think it's very fascinating that you can have a a button you know like for Boost like you know you have in all the video games it's finally something realistic other than nitrous which is going to just ruin your engine if you use it too many times whereas something like this can be made um somewhat reliable and you can use it over the duration of many hours like Porsche did on the Nur green 24-hour race so it's it's a very cool technology\n"