It is a technology to reduce fuel consumption and emissions and vehicle electrification. Audi developed EROT (electromechanical rotary damper), a suspension system which uses an electric motor instead of the traditional shock absorbers.
This system allows recovering kinetic energy during the damping process, unlike conventional shock absorbers, which would otherwise be lost as heat.
According to Audi, the suspension arms which are connected to the rotary damper can absorb the wheel motion and transmit it via a set of gears to an electric motor fitted to the rear axle.
“Every hole, every bump, every turn induces kinetic energy of the car. Current dampers absorb all this energy that is lost as heat. With the rotating electromechanical dampers in the electrical system of 48 volts, we can use all this energy “, explained Stefan Knirsch, one of the responsible Audi’s technical development.
The Audi also said that during the tests performed, the system can recover from 3 to 613 watt of power, depending on the conservation status of the roads where the model was. This translates into a reduction of fuel consumption.
The reduction in CO2 emissions can reach 2 g / km, and another advantage of this system is to reduce the weight being up to 10kg more lighter than the traditional system of hydraulic dampers.
in addition to all this, the electromechanical rotary dampers allow improved comfort and dynamics, as the system allows almost unlimited suspension tunings.
This technology should be used in hybrid Q6 and later in different ranges of the Ingolstadt brand
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