With emission laws clamping down closely on automakers, manufacturers are forced to find ways to make their cars more environmentally friendly. Of course, the obvious choice for them to go with today is by using a hybrid powertrain that pairs the internal combustion engine with an electric motor. But is there any other alternative aside from using electric power for a hybrid powertrain?
https://www.youtube.com/watch?v=rjqFihLltSY#t=12
It seems that Peugeot holds the answer to such question where they intend to create a hybrid powertrain that uses compressed air. Dubbed as the ‘Hybrid Air’ technology, Peugeot and Citroen once showcased Hybrid Air, but will do once again at the upcoming Paris Motor Show. This time, Peugeot will be using their own 208 subcompact as a show car.
The aim of the Hybrid Air is to produce a car that achieves the French government’s target of 117mpg (or 2l/100km) by 2020. The Hybrid Air stores compressed air into two tanks mounted under the trunk floor, generated by hydraulic motors during driving and decelerations. During acceleration, air pressure spins the hydraulic motors, where the power is then sent through an epicyclic transmission to assist the gasoline engine. It is also possible to drive the car solely on air power for short distances.
Aside from tweaking the engine of the 208 to reduce friction, Peugeot had also revised the bodywork to reduce aerodynamic drag. The air intakes have been redesigned and the side mirrors are slimmer. Aside from the large alloy wheels, Peugeot also managed to shave 100kg from the already lightweight 208, bringing its curb weight down to 860kg.
