Remote kill - while the vehicle is moving

What I find interesting is that you guys are going to build an un-manned, GPS controlled, self navigating vehicle, but you're unsure of how to interupt ONE wire to stop the vehicle?!!! But to answer your question, ignition circuits typically carry a amperage rating of 20 amps. A standard 30-amp relay works fine for ignition cut (hopefully your emergency stop receiver can do that, otherwise it's not that hard to wire it to drive a bosch automotive relay). The vehicle is old enough that ignition power isn't ECU controlled, meaning you don't have to cut the fuel in conjunction to safely stop the vehicle, since fuel pump and injectors will most likely lose their postive +12V supply once you remove the ignition power.

cosmoworks wrote: What I find interesting is that you guys are going to build an un-manned, GPS controlled, self navigating vehicle, but you're unsure of how to interupt ONE wire to stop the vehicle?!!!

i agree...thats why i thought they might be using it in a bank robbery somehow.