System and method for testing crash avoidance technologies

A method of electronically changing the braking bias among the wheels of a Dynamic Motion Element for use in testing crash avoidance technologies in a subject vehicle, comprising the steps of:

• providing a Dynamic Motion Element comprising:
• a body comprising an upper surface wherein the upper surface is adapted to support a soft-body having the size and shape of a vehicle or portion of a vehicle, the body having at least one tapered side so as to allow the subject vehicle to drive up to and on the upper surface with minimal to no damage to the subject vehicle or the Dynamic Motion Element, the body supported by a plurality of wheels, including at least one driven wheel rotationally coupled with an electronically-controlled power source, and at least one steerable wheel coupled with an electronically-controlled steering system;
• and an electronically-controlled braking system attached with and capable of applying braking force to a plurality of the wheels independently;
• and
• electronically controlling the braking system to change the amount of braking force applied to one or more of the wheels relative to the amount of braking force applied to one or more of the other wheels.