[Al Skierkiewicz]

sanddrag
We have not used shifting to achieve our drive systems. Our mechanical engineer designs the drive transmission to have a desired speed/torgue at some particular RPM. Then we achieve that stated RPM in software so that it is less than full speed (at the motor) most of the time. This allows us to select a "turbo" mode which is near full speed on the motors when high torgue is not needed. We do have multiple drive motors, this year four for a four wheel drive and two additional for a tank high pulling/low speed drive that would lift the other wheels off the ground.