Audi AI TRAIL Quattro Unveiling
123The performance specifications for the Audi AI:TRAIL are markedly different from those for conventional automobiles. That is because the car’s development was not about achieving remarkably quick acceleration or hitting breathtaking speeds on the autobahn.
Given that the AI:TRAIL is intended for use in areas without charging infrastructure, the thing that really draws the attention is its range. The stated target with its lithium-ion battery is
400 to 500 kilometers (248.5 to 310.7 mi) on roads or easy off-road terrain (in line with the WLTP). On rough ground, where the almost constantly elevated wheel slip alone means that energy consumption is higher, the limit is still an impressive 250 kilometers (155.3 mi).
In order to meet these requirements, the vehicle is designed to reach a maximum speed of 130 km/h (80.8 mph) on the road. The vehicle electronics continuously monitor the energy flow and consumption, thereby ensuring maximum economy even during off-road driving.
In terms of drive hardware, the Audi AI:TRAIL is equipped with four electric motors installed near the wheels, each of which propels one wheel directly. As is typical for Audi, the off-roader is therefore a true quattro. The maximum system output is 320 kilowatts and the maximum torque is 1,000 Newton-meters (737.6 lb-ft). Usually only a fraction of this power is mobilized; the drive of just one axle is often sufficient.
Due to the individually propelled wheels, the vehicle can do without differentials and locks, which also consume energy. Thanks to the moderately calculated maximum speed, the gear ratio can be designed such that every wheel is provided with enough torque even without a multi-speed transmission.
The electronics coordinate driving stability and traction. If energy-consuming slip can be avoided, it reduces the supply of torque to the affected wheel. However, in situations in which slip is useful, such as on low-grip uphill stretches, the system permits it automatically. The large amounts of reserve power of the AI:TRAIL allow it to conquer challenging stretches even in difficult conditions—confidently, safely and always without emissions.
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