Patent ID: 9409596
Filing Date: 2016-08-09
CPC Classification: B60W,B62D

Claim Text:
1. A steering system comprising: a first gear pair that controls the turning of a non-driving wheel, the first gear pair including a non-circular drive gear that engages a non-circular driven gear; the non-circular drive gear having a pitch line and a pivot axis, the pivot axis being a greater distance from the pitch line at two locations on the pitch line than at a location on the pitch line positioned between the two locations; and a second gear pair that controls the turning of another non-driving wheel, the second gear pair including a second non-circular drive gear that engages a second non-circular driven gear; where the steering system is in a vehicle having a pair of drive wheels driven by a transmission system capable of driving the drive wheels at different speeds and in different directions, the transmission system is capable of causing the drive wheels to produce a first vehicle turn radius, and the first and second gear pairs are configured to cause the non-driving wheels to produce a second vehicle turn radius equal to the first vehicle turn radius for a given steering input.