Portable Rail Suspension Displacement Monitoring System

Period of Performance: 01/01/2015 - 12/31/2015


Phase 1 SBIR

Recipient Firm

dFuzion Inc.
21536 Iredell Terrace
Ashburn, VA 20148
Firm POC
Principal Investigator


dFuzion proposes the development of a comprehensive Ride Performance Assessment System (RPAS). RPAS leverages the investment and research already made by FRA in its sponsored portable ride quality meter. By extending the ride quality data acquistion framework to accept inputs from suspension displacement sensors, RPAS can correlate data from acceleration and displacement sensors with geospatial information. The RPAS concept would allow users the flexibility of correlating a variety of data types in real‐time in an effort to better validate vehicle models, and detect track and/or vehicle anomalies. No one data type can always definitively predict or identify anomalous conditions, but correlating multiple data types can achieve a greater level of confidence in the measurement results. In the future, additional sensors (i.e., strain, force, temperature, load, RPM) can similarly be integrated into RPAS for additional on‐board situational awareness.