RE: Is 2011 the year of electric vehicles?
The video extolling the virtues of Electric Cars seems to have
used the sounds of IC engined cars when showing Electrics in
motion. Why?
The point being made here is not trivial.The Electric Car will be
virtually soundless, particularly at lower speeds and as with all
characteristics there are benefits and dis-benefits.
The noiseless car will solve many environmental noise problems
but will also be a potential hazard to pedestrians crossing a road
i.e. no warning of presence or direction.
An interesting solution might be a requirement to generate an
artificial sound in all locations except perhaps the
Interstate/Motorway/Autobahn etc., here, this sound can be
switched off, leaving just aerodynamic noises to pollute the ether. Noise Level will indicate aerodynamic efficiency, the lower the
better.
As to the specifications of the "Artificial Noise", I am sure there will
be interesting discussions in National and International forums as
to necessary spectrum and amplitude.
