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Special high-voltage battery drives Audi RS Q E-Tron in the Dakar Rally

Posted on 11-01-2022 by Nilesh Sawant

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Brands: Audi

Audi has given RS Q E-Tron an engine makeover by introducing in it a high-voltage battery. It is an embodiment of electric car innovation at its best.


Audi has given RS Q E-Tron an engine makeover by introducing in it a high-voltage battery. It is located in the car's center; this battery embodies electric car innovation at its best. The intention of brand Audi to use this battery is to create a new milestone while participating in the world's toughest rally. Such as the one organized in Dakar, the capital city of Senegal. In other words, this high-voltage battery is brought in to cater to the demands of endurance competition. MWTV presents this article to explain why the Audi RS Q E-Tron is electrified using a high-voltage battery. 

The Audi RS Q E-Tron high-voltage battery made for unknown requirements:  

In the Formula E World Championship, which was the last competition that Audi participated with an electrified battery car that had the requirements to taste success. However, to be successful in the Dakar Rally, a driver will have to experience kilometers of driving resistance due to the soft sand of the desert. In addition, high temperatures and the minimum vehicle regulation mean that usage of ordinary battery technology will not suffice to gain victory at the rally.

It is to help an Audi RS Q E-Tron driver a chance to drown in the glory that the German car brand specially developed a high-voltage battery. It led to an engineering team with Axel Löffler, Chief Designer of the RS Q e-Tron, as leader being assembled. To develop a cell technology that should provide all requirements needed to drive Audi RS Q E-Tron at the Dakar rally successfully. Finally, they came up with a high-voltage battery with a maximum capacity of 52 kWh, which is sufficient to be victorious at the Dakar rally.   

High durability and density of the Audi RS Q E-Tron high-voltage battery: 

The new Audi RS Q E-Tron automobile high-voltage battery is made keeping in mind the required energy capacity required to deliver a winning performance at the Dakar rally. It was done by engineers at Audi using round cells as the base to develop a high-voltage battery. Furthermore, it was also designed so that sports racing drivers of the brand such as Stéphane Peterhansel, Mattias Ekström, and Carlos Sainz do not ever feel the difference between the old and new battery.  

Algorithms that keep the Audi RS Q E-Tron high-voltage battery charged as per demand: 

The Audi electronic technician and engineers have specially developed algorithms in the high-voltage battery. Which helps maintain the charge level, also known as the State of Charge (SOC). Over-defined distances, there was the maintenance of energy extraction and battery recharging. For example, while driving through a passage of dune with high resistance, the SOC drops within a controlled range to produce maximum energy required for a short time. 

Energy recovery concept used in the Audi RS Q E-Tron high-voltage battery: 

To provide the RS Q E-Tron maximum efficiency needed while driving through a desert during the Dakar rally, Audi has ensured that the high-voltage battery can help recover energy while braking. It also means that the MCU units of the front and rear axle can convert the rotational movements of the wheel into electrical energy. The braking system, which complex is known as Intelligent Brake System (IBS), plays a part by combining the hydraulic braking function with the electric regenerative break.  

Thanks to the overall design of the Audi RS Q E-Tron, including its body and the energy control system consisting of a high-voltage battery, this German vehicle is indeed perfectly made for rallies such as those held in Dakar.  


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