Audi has provided some further details on the RS Q e-tron prototype that will run. to the next Dakar 2022. In particular, the house of the 4 rings has provided more information; on the safety and construction of the chassis of the special car. Please note that the prototype has three electric engines derived from those of the Formula E Audi e-tron FE07 single-seater. These are two MGUs (Motor Generator Units), one at each axle, which take care of traction.
C & # 39; & egrave; then the third unit & agrave; which acts as a generator to help recharge the high voltage battery, especially when braking. The prototype & egrave; equipped also with a range extender , a four-cylinder TFSI & ndash; gasoline direct injection turbo & ndash; derived from the DTM, which takes care of recharging the battery. This thruster is not used to provide wheel traction.
CREW SAFETY 
The house of the 4 rings tells that the passenger cell and the supporting structure of Audi RS Q e-tron consist of a tubular trellis frame which, by regulation, must be made of metal. Specifically, the manufacturer used hot-formed, aerospace-derived high-strength steel & ldquo; alloy & rdquo; with elements of chromium, molybdenum and vanadium (CrMoV). Audi also protects the crews through panels in CFRP, carbon mixed with thermoplastic polyurethane, inserted in the interstices of the frame itself and integrated in multiple points by Zylon, a thermosetting polymer that prevents the penetration of pointed and sharp objects and, at the same time, pilot fencing. and navigator from the high voltage system.
The bodywork, on the other hand, is; in CFRP, Kevlar or a mix of the two materials, in some cases with a honeycomb structure. The windshield derives from that of the Audi A4 and is; in laminated glass with an anti-scratch treatment. The side windows are in polycarbonate. The seats, on the other hand, are made of CFRP and were designed by the technicians inspired by those used in DTM or endurance races. The only difference is the presence of the controlled deformation section in the shoulder area, as per regulation.
To protect the battery that & egrave; subject to great stress, Audi has decided to place it centrally and encapsulate it in a structure made of CFRP and Zylon. The underbody, another very stressed area during rallies, is; shielded through a complex structure to protect the accumulator and the petrol tank. The protection of the underbody is; was designed using Audi's experience in the WEC world.
Always to ensure the safety of the high-voltage system of which & egrave; equipped with the prototype, we find an LMP derivation monitor through which you can monitor any voltage fluctuations . If an accident occurs and an over-threshold kinetic load is detected, the entire system shuts down. The powertrain & egrave; also shielded from the water so you can tackle the fords smoothly. In the event of a fire, the extinguishing system uses an electrically inert agent.
To prepare for the Dakar 2022, the whole team is & egrave; subjected to meticulous training sessions for high voltage management. The prototype, by regulation, also features the Sentinel device that warns when another vehicle arrives behind you.
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