Fleet Study of Brake Performance and Tire Pressure Sensors

摘要

The purpose of this project was to conduct a field study of brake performance and tire pressure monitoring systems on commercial heavy-duty vehicles operating under real world conditions. The study evaluated six systems in totalthree brake performance and three tire pressure monitoring systems from various suppliers participating in the project. Transit bus platforms were selected for this field test because of the severe urban, stop/start duty cycle under which transit buses operatean environment that accelerates both brake and tire wear thus allowing the sensor systems to be heavily exercised over the study period. The test fleet included 12 test buses and 12 control buses. The buses were operated by the Washington Metropolitan Area Transit Authority in Washington, DC The test site was the Four Mile Run maintenance garage located in Arlington, Va. During the course of the 1-year field test, the buses averaged 129 miles per day, and the test fleet traveled a total of approximately 762,580 miles.