Development of a Diagnostic System for Air Brakes in Autonomous and Connected Trucks

Air brakes are sensitive to maintenance and are employed in trucks; proper functioning of air brakes is critical to safety of autonomous and connected trucks. Current manual inspection techniques focus on two important defects of brake system: (1) leakage of air, and (2) pushrod stroking beyond an acceptable limit. While both defects affect the steady state brake torque available at the wheels, they also significantly affect the transient response of brakes. In both cases, the stopping distance will increase significantly. This project is concerned with developing a diagnostic system for estimating the leakage and stroke of the pushrod and corroborating the efficacy of the developed system on an experimental air brake system setup that will be built as a part of this project. The proposed diagnostic system can be used to facilitate pre-trip and enforcement inspections of air brakes in trucks and as an on-board monitoring system for air brakes in trucks in Autonomous and Connected Trucks.


  • English


  • Status: Active
  • Funding: $340000
  • Contract Numbers:


  • Sponsor Organizations:

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590
  • Managing Organizations:

    Safety through Disruption University Transportation Center (Safe-D)

    Virginia Tech Transportation Institute
    Blacksburg, VA  United States  24060
  • Project Managers:

    Harwood, Leslie

  • Performing Organizations:

    Texas A&M Transportation Institute

    Texas A&M University System
    3135 TAMU
    College Station, TX  United States  77843-3135
  • Principal Investigators:


  • Start Date: 20190101
  • Expected Completion Date: 20210831
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers Program

Subject/Index Terms

Filing Info

  • Accession Number: 01701412
  • Record Type: Research project
  • Source Agency: Safety through Disruption University Transportation Center (Safe-D)
  • Contract Numbers: 69A3551747115
  • Files: UTC, RIP
  • Created Date: Apr 4 2019 12:58PM