Quote:
Originally Posted by rmorrow
Before this gets way off track, I'll say again: There is no way anyone can pretend that a hybrid car in EV mode is so quiet that you won't hear it when its going fast enough to pose a real danger. At any speed where the car might be really that quiet, I have plenty of time to react to any possible danger of colliding with a pedestrian, blind or otherwise, even if they deliberately jump in front of my car. The complaint is total nonsense.
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The complaint stems from one informal test that has yet to be replicated or properly instrumented. We don't know either the surface or speeds or if seeing eye dogs were used. Where are the dBm readings?
I think a better answer is to conduct an independent test, something we have the ability to do, that documents the critical characteristics and lays the facts and data:
- Sound level and spectrum as a function of speed in EV mode.
- Sound level and spectrum as a function of road surface.
- Sound level and spectrum of vehicle with ICE running.
- Seeing eye dog ability to detect an EV vehicle.
- Training a dog to detect an EV vehicle.
A little bit of empirical data would go a long way to understanding for all parties.
Bob Wilson