Posted by NEsota on December 09, 2008 at 13:20:42 from (75.72.251.223):
For decades, when driving on a slippery surface with a stick shift vehicle, I have been aware that often the traction improves after shifting to a higher gear. Knowing that static friction is greater than sliding friction, only yesterday, did I connect with an idea that I think is the possible reason for the better traction in the higher gear. Maybe, I am the last person in the English speaking world to make the connection and maybe I am wrong in my analysis, but here it is: When changed to the higher gear, the torque requirement on the input shaft to the transmission is increased. Thus, more pressure is applied to the compression springs connecting and absorbing the “rotational” shock between the clutch drive and the rotor on the input shaft to the transmission. So rotational shock absorbed in the clutch springs, allows for an increase in the static friction between the tires and the surface, they drive on. It is possible that spring loaded rotational devices could be used to improve power transmission in other places that are now using solid or fluid coupling.
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