Vehicle Control Systems and Methods

A vehicle control system for a vehicle having a steering wheel, left and right front steerable non-driving wheels, and left and right rear drivable wheels, the vehicle control system comprising:

• a first gear pair that turns the right front steerable non-driving wheel following a steering input from a steering wheel corresponding to a zero-radius turn from a straight-ahead position;
• a second gear pair that turns the left front steerable non-driving wheel following the steering input;
• a pair of links, each link having a slot that is straight over substantially all of the length of the slot;
• a first follower positioned in the slot of one of the links, the first follower movable in an arc following the steering input;
• a second follower positioned in the slot of the other of the links, the second follower movable in an arc following the steering input;
• a pair of speed cams, one speed cam coupled to one of the links and the other speed cam coupled to the other of the links, each speed cam including a curved slot and being pivotable following a speed input from a speed pedal;
• where pivoting of the speed cams following the speed input while the first and second followers are in respective positions corresponding to the zero-radius turn will cause each link to move in a plane that is parallel to any flat surface on which vehicle is positioned, causing the left and right drivable wheels to rotate in opposite directions.