Audi has released a software update that will extend the range of its MY 2019 and MY 2020 e-tron EVs by up to 20 kilometers (12.4 miles). The update is available now and can be installed at Audi’s service centers.
On the current model year Audi e-tron 55 quattro, for example, the update enables a range of up to 441 kilometers (274 miles) on a single battery charge (WLTP cycle). In addition to modified hardware, optimized software was the main factor contributing to the range increase. The software update also expands the usable capacity of the EV’s battery. As a result, the 95 kWh battery in the Audi e-tron 55 quattro delivers more net usable power – 86 kWh capacity therefore translates into increased range.
The new update also works to optimize the control of the front electric motor. In normal driving mode, the motor attached to the rear axle is responsible for propulsion. For improved efficiency, the front electric motor is now almost completely disconnected and powered off. Both motors are only enabled when more power is needed.
The e-tron’s cooling system also benefits from the update and now helps to reduce energy consumption. The e-tron’s thermal management system, which consists of four separate circuits, regulates the temperature of its high-voltage components. Modifying the control system reduces the volume flow rates in the coolant circuit, reducing energy consumption.