A steering system for a mobile platform is provided that reduces and/or
eliminates backlash in the steering system. The steering system includes
an input mechanism for receiving an input from an operator of the mobile
platform to move the input mechanism into a first position or a second
position. The input mechanism further includes an input arm. An idler is
rotatably coupled to the input, and the idler is configured to engage the
input arm in the second position. A pair of biasing members is coupled to
the idler and the input arm to bias the input mechanism to a "center" or
"neutral" position. The biasing members are operable to resist the
movement of the input mechanism into the first or second positions. A
steering mechanism coupled to the input mechanism monitors the position
of the input mechanism and generates electrical signals to drive a motor
that steers a wheel in accordance with the direction of movement of the
input mechanism.