Safe-D: Safety through Disruption

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.

Project Highlights

Coming Soon!

Final Report

Coming Soon!

EWD & T2 Products

Coming Soon!


Liu, S. Rathinam and S. Darbha, “Lateral Control of an Autonomous Car with Limited Preview Information,” 2019 18th European Control Conference (ECC), Naples, Italy, 2019, pp. 3192-3197. doi: 10.23919/ECC.2019.8796007

Final Dataset

The final datasets for this project are located in the Safe-D Collection on the VTTI Dataverse; DOI: 10.15787/VTT1/9SWAHY.

Research Investigators (PI*)

Swaroop Darbha (TAMU/TTI)*
K. R. Rajapol (TAMU/TTI)

Project Information

Start Date: 2019-01-01
End Date: 2021-08-31
Status: Active
Grant Number: 69A3551747115
Total Funding: $ $340,000
Source Organization: Safe-D National UTC
Project Number: 04-100

Safe-D Theme Areas

Automated Vehicles
Connected Vehicles
Transportation as a Service

Safe-D Application Areas

Freight and Heavy Vehicle
Planning for Safety
Vehicle Technology

More Information

UTC Project Information Form

Sponsor Organization

Office of the Assistant Secretary for Research and Technology
University Transportation Centers Program
Department of Transportation
Washington, DC 20590 United States

Performing Organization

Texas A&M University
Texas A&M Transportation Institute
3135 TAMU
College Station, Texas 77843-3135