Visual and auditory feedback are generated by specialized processing boards that are provided with the system. Game port, analog to digital, and high resolution digital interfaces are provided in order to allow the simulation to be used with a variety of driving control configurations. The standard vehicle mathematical model allows the user to specify steering and speed control characteristics that are meaningful to the driver. The steering dynamics include understeer that properly changes steering sensitivity as a function of speed, and an unstable heading divergence that simulates the effects of road crown and provides a means for adjusting steering workload. Speed control dynamics consist of an automatic or manual transmission, allowing specification of number of gears and gear ratios, throttle acceleration and deceleration limits, and an unstable speed divergence that may be used to set the workload of the speed control task.
Auditory feedback is provided for engine speed and acceleration limits.
Tire limits account for a maximum cornering capacity and stopping deceleration. Auditory screeches are associated with exceeding the tire limits during cornering and braking. A comprehensive, validated, non-linear vehicle dynamic and tire model is also available. This vehicle dynamic model is run at the very fast update rates required for proper simulation of the dynamics using a dedicated processor linked to the simulation computer. A head-mounted display option is also available.