Mazda works on regenerative system with electric double layer capacitor

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Everyone wants to go green these days, it makes perfect sense after all. We do not hand over the earth to our descendants as an inheritance, but rather, we are just caretakers of the earth for the next generation. I know that hybrid cars have been working their way into the psyches of folks worldwide, and electric cars, too, are picking up the pace, although there is still a long way to go before such vehicles become mainstream and we wean ourselves off the liquid known as black gold. Mazda has come up with a concept vehicle that boasts of a system which will harness the energy generated each time the vehicle slows down to be used later on.

In order to have the system work, it relies on a low-resistance electric double layer capacitor. The system is called the “i-Eloop,” where it relies on an electric double layer capacitor to function as an electric storage device of a vehicle. This makes it the first of its kind in the world, where the regenerated energy will be recycled to keep the air conditioner, car audio system and other electric components going. Mazda hopes that the i-Eloop will also be able to deliver improved fuel efficiency by around 10% assuming the vehicle experiences frequent speeding up and slowing down.

Comprising of a low-resistance electric double layer capacitor, there is also a variable voltage alternator (12 to 25V) and a DC/DC converter. Whenever your right foot (for those of us driving right hand drive vehicles) gets nice, close and heavy with the accelerator pedal, needless to say you will be propelled forward – but when you release it, the alternator will generate electricity, where all this additional juice will then be stashed away in the capacitor. It will require several seconds in order to fully charge the capacitor. All voltage of the electricity that is stashed away in the capacitor will be lowered to 12V with the DC/DC converter in order to supply electricity to the electric components. Mazda kept mum on the output density or energy density of the low-resistance electric double layer capacitor.

Expect to see Mazda equip their vehicles with the i-Eloop sometime next year, although the exact model(s) have yet to be announced.

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One review or comment

Garrett Says: December 20, 2011 at 5:31 pm

I dont get whats so ground breaking about this. all electric cars have regenerative breaking, its a standard for all electric vehicles just as normal brakes are for a regular car. Tesla took it one step further and even the shock absorbers on the Model S convert that energy into electricity and they say they’re working on capacitors as a replacement for batteries for their higher energy storage potential.

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