Audi e-tron Driving Video

  • 6 years ago
From high-efficiency to high-performance - the particularly appealing component of the Audi e-tron's drive is its breadth. The two electric motors accelerate the e-tron from 0-60 mph in 5.5 seconds and reach a top speed of 124 mph. The advantage of the electric motor is felt especially in its impressive off-the-line starting performance from a standstill. The maximum drive torque is reached in 250 milliseconds - a performance worthy of a sports car. US horsepower and torque figures will be available closer to launch.

The two asynchronous motors (ASM) of the Audi e-tron are especially robust. Their sophisticated cooling concept is designed to keep the temperature level low. Single-stage transmissions transfer the torque to the axles via the differentials. Each motor is supplied by power electronics that act in close consort with the powertrain control unit. When the Audi e-tron is traveling at moderate speeds, in the interest of efficiency it is powered mainly by the rear motor. When coasting, the motors operate free from magnetic drag torque - another strength of ASM technology.

The Audi e-tron uses an innovative recuperation system encompassing both electric motors, to boost efficiency. On average, our engineers estimate that this system is responsible for as much as 30 percent of the e-tron's range depending on the conditions, terrain and driving style. The electric SUV can recover energy in two ways: by means of coasting recuperation when the driver releases the accelerator, or by means of braking recuperation by depressing the brake pedal. When pressing the brake pedal, the electronic control unit computes within milliseconds how much pressure the system needs to build up for the specific braking process required. A high-performance electric motor supplies the necessary energy. The integrated brake control system is approximately 30 percent lighter than a conventional system thanks to its more compact design. The conventional vacuum pump is no longer needed in this configuration.