The Problem With Tesla's Differential Strategy - Helical Diffs Are Better Than Open Diffs.
Design Prototype Test
The Cybertruck is going to be a wonder of engineering, but will it use the same open differential + torque vectoring strategy employed on all other Tesla vehciles to date? In this video I demonstrate with physical working models the many reasons why the Cybertruck would be better off using a helical differential instead.
1937 Black and White film explaining open differentials: https://youtu.be/yYAw79386WI (the best that I've seen)
The Fast Land Car rock crawling experiment with a Model X: https://youtu.be/Vm5iVpt-tbk (battery life at the 25:40 timestamp)
30 minute timelapse video of me drawing the differential in Rhino6 (5.5 hours elapsed time): https://youtu.be/foOJCCWhQpg
MATH! How to calculate the TBR (Torque Bias Ratio) of a Helical differential: http://www.zhome.com/ZCMnL/tech/Torsen/Torsen.htm ... https://www.youtube.com/watch?v=ku-J9W0TbbE
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