> I doubt an electric motor can provide enough braking power to stop any car at highway speeds in the distance required by most countries
Directly connect the motor to a bank of resistors (maybe use the same system in an electric car that is used for AC anyway so you don't waste the heat) or into supercaps, and if you want really enormous braking power apply the power in reverse. You will need brakes though for the last few km/h and for parking brake.
Directly connect the motor to a bank of resistors (maybe use the same system in an electric car that is used for AC anyway so you don't waste the heat) or into supercaps, and if you want really enormous braking power apply the power in reverse. You will need brakes though for the last few km/h and for parking brake.