https://techcrunch.com/2017/11/16/the-tesla-semi-tackles-this-classic-truck-safety-problem-using-tech/

Tesla’s Semi is an all-electric semi truck, which itself is a major feat, but its powertrain isn’t the only technological innovation that the automaker is applying to trucking. One other key element of the new Semi is that it will automatically avoid one of the most notorious, and dangerous potential safety issues faced by big rigs with trailers: jackknifing.

Even the name is adequately frightening – it conveys messy violence. And you’re definitely familiar with the concept, even if you can’t link It to the name: It’s what happens when the truck cab violently turns one way, but the truck trailer goes another, resulting in a disastrous imbalance and the truck eventually flipping on once side and cutting a devastating path across highway lanes.