You probably heard of Brake Regeneration systems that recover electrical energy from braking on hybrids before. This is Audi’s new Suspension-Energy Regeneration system which uses a lot of lost energy from the cars suspension movement on the road and transfers it to electrical usable energy.
Thermoelectric technology such as this could mean the end of chargers, just imagine what is possible when you integrate the Suspension-Energy Regeneration technology with the already existing braking technology? There wont be any need to charge your electric car as long as your driving it, which is revolutionary in every sense.
The tech Audi developed uses the suspensions vertical movement to its advantage, so the bumpier the road the better. The technology is called EROT which replaces traditional hydraulic dampers found in most suspension shock absorbers with new electromechanical rotary dampers.
The diagram shows how the Suspension-Energy Regeneration system works: The wheel support arm is connected to a gear unit which then converts the suspension movement (compression:up and rebound: down) into spinning motion that then converts into electricity via the on-board generator.
Audi R&D boss Stefan Knirsch explains; “Every pothole, every bump, every curve induces kinetic energy in the car,” “Today’s dampers absorb this energy, which is lost in the form of heat… we put this energy to use.” Audi also says the system can generate as much as 613 watts on bumpy roads, which then gets stored in the batteries to power the hybrid’s electric motor.
The Suspension-Energy Regeneration system’s electromechanical rotary dampers are also much more compact than the traditional suspensions found today, which means less room taken and lower sleeker cars is the result. Audi did not reveal when this tech might be on the roads, but we expect it might make an appearance on their new EV lineup in the future.