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The accuracy of existing rotational wheel dynamics models has been found to be insufficient for heavy vehicle Antilock Braking System (ABS) and Electropneumatic Braking System (EBS) simulation, specifically when wheelspeeds are at or near zero but the vehicle speed is not. Control strategies specific to ABS and EBS, the low frequency response of pneumatic actuation, and the practice of using fewer modulators than braked wheels require that a vehicle model be able to handle lockedwheel scenarios accurately. Commercially available models have been found unsatisfactory in this regard, and technical literature has not been found to address this issue.

An analysis of salt water effects and test methods to design Antilock Brake System (ABS) Electronic Control Units (ECUs) capable of withstanding the Heavy Vehicle frame mount environment. An examination of new and existing test methods and design techniques to ensure reliability over the life of the vehicle.