The idea is good for a bike: it can be interesting but the energy stored mechanically will be quite low ... so I think it would be difficult to bring this technology to the car ... without much increase the weight of this one ...
At the power / energy level, the site gives just these indications:
- Braking distance for a complete storage: 120m
- Maximum recovery distance with this full storage: 90m
- Restart power: 115N / mAlready it is not a power but a couple. No indication on the storable energy in the system so ... we could at the big ladle estimate the storage yield at 90 / 120% ... is 75% ... if recovery and acceleration are identical?
115 Nm (and not N / m which is not a unit of torque) I assume that it is the maximum torque, when the spring is compressed to max, and compared to VAE, it is a high value visibly, see:
http://www.hollandbikes.com/6-points-cl ... trique.htmThe engine torque: it is the force delivered by the engine (expressed in Newton per meter: Nm) it is undoubtedly one of the first criteria to take into account if you must use the VAE in mountain area. 15, 25, 29, 33, 40, 50 and up to 80 Nm (for Yamaha): the higher the torque, the more the bike will have capacity on the hill, and / or with a heavy load. Take note that the engine torque is independent of the power of the engine, which in any case is limited to 250 Watts (almost all high-end bikes are at 250 Watts). From experience a couple of 29Nm is the minimum for very hilly roads. Choosing a high torque may be wise if you do not have a lot of muscle strength or if the bike is very loaded. On the other hand, in town and for rather flat daily trips and / or with only a few light ribs you will not need more than 20 Nm.
In other words, if we put 115 Nm when starting a bike, it will release
I think it is then worth using air (I suggested it since we talk about the air motor ...) or a hydraulic circuit (reversible hydraulic motors) to store energy in heavier vehicles and give "free" torque after braking ...