Software stabilizes electric vehicles on winterly roads: Page 2 of 2

December 09, 2019 //By Christoph Hammerschmidt
Software stabilizes electric vehicles on winterly roads
Snow-covered roads present the driver and the stability control of the vehicle with tough challenges; normal vehicles slip easily - with potentially dangerous consequences. Porsche Engineering has now developed a torque control system for an electrically driven series SUV that optimizes driving characteristics and ensures driving stability in real time exclusively via software. The developers were not allowed to install any additional sensors and had to use the existing control units.

Although a conventional driving stability program (ESP) does all this, the safety system can do more with an electrically powered all-wheel drive vehicle: while a classic ESP only brakes, individual wheels can accelerate additionally with an electric vehicle. In this way, the vehicle is "pulled" back into the right lane and does not lose speed. In addition, the intervention is smoother than with hydraulic ESP.

As the customer had specified that no additional sensors could be installed, the software developers had to ask the software developers' creativity for this SUV project. "The observer must also use the important parameters from unusual data sources: For example, the torque control communicates with a sensor that detects the car's angle of inclination and is usually used to automatically adjust the headlights.

Related articles:

Torque-vectoring dual-clutch unit requires only one motor for e-cars

Porsche goes to the starting blocks for the electric age


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