Is it possible to create an energy for cars by having some kind of electron emitters built around the car or sound wave emitters to create a layer of dense airwave around the car to cushion any impacts to the car in an accident?
You can do reactive armor. But the use case for reactive armor is not what one would usually characterize as a "collision".
Sounds like an effective theft prevention system. Or anti-personnel weapon.Well, you could instead do a "proactive reactive" protection, i.e. upon sensing an incoming collision, the car could send out something (air, foam, whatever) that would enable it to decelerate over a greater distance.
Sounds like an external air bag but the performance would need to be much better than an internal personal bag because the energy that would be dissipated would be several ten times greater.Well, you could instead do a "proactive reactive" protection, i.e. upon sensing an incoming collision, the car could send out something (air, foam, whatever) that would enable it to decelerate over a greater distance.
I kind of wonder about an extendable bumper as well. Very difficult in practice, but if a crash was imminent, the bumper could be "shot out" a few feet (explosives, like an air bag, or compressed gas/spring). It would then latch in place and crush on impact, absorbing some of the force. A side benefit would be the extreme force needed to extend it so quickly would slow your car a bit.It wouldn't need to be an airbag either, since airbags are mostly used to not crush the driver's face. Since this device would operate on the car's body, it could be as simple as an extending bumper.
EDIT: Now I want to rewatch the "Herbie" movies
Probably. But we only have so much tire surface.Thing is also, from a certain distance on, the tires are a much more feasible option to achieve constant deceleration. That is, it's probably a much more fruitful avenue to try to engage the brakes earlier. That's what all these intelligent cars do of course.