Second Gear

Second gear





Gear rotation speed





Note:
^ The front internal gear and the rear planetary carrier are integrated.
^ The front planetary carrier and the rear internal gear rotate at the same speed.

^ Suppose gear ratio in second gear is i2,





^ From formula (1), the relation between the gear ratio in second gear and the rotation speeds of the front and the rear planetary gear sets is indicated in formulas (2) and (3).





^ From the result NS=0 in formula (3).





^ Here we substitute formula (4) in formula (2).





Therefore,





As a result, the gear ratio in second gear is 1.497.