Tesla delivers there first semi

Groover wrote:


I have heard that a leading cause of runaway trucks is drivers missing a gear at a bad time. Regen should eliminate that.

I think the "missed shift" is less of issue the last few decades. In the days past, like my '76 Pete, (by then that set-up was rare. But that was the 3rd truck the 1693 was in. Likely the gearboxes where from earlier times too) with 2 non synchronized transmissions, trying a split, getting both boxes in neutral, getting back in gear was hard.
And driver not wanting to show they missed was issue. Going up hill, speed would drop fast enough with the peaky torque curve, by the time got in a gear could not pull. Down steep hill, the best idea is save the brakes by standing hard until stopped.
But many trucks sold in the last 15 years (or what I saw last time I was used truck shopping) for fleet operations had some form of computer controlled auto-shift. Bell, the Super 10 in my '95 Pete, moved the stick once from 40 MPH to topped out.