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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Railroad Freight Car Remote Controlled Electrically Driven Set & Release Hand Brake (EDHB) – Optimization for Increased Reliability and Performance

Document Series:
Technical Reports
Author:
  • Federal Railroad Administration
Report Number
DOT/FRA/ORD-19/03
Office
RDI-22
Subject:
Rolling Stock
Keywords:
Electrically, Electrically Driven Set and Release Hand Brakes, EDHB, driven, hand brake, remote control, release sensor, electro-pneumatic, application sensor, vertical wheel, Group N, Group O, specification, standard, performance, prototype
Document
Railroad Freight Car Remote Controlled EDHB.PDF (1.42 MB)

From April 2014 to September 2019, the Federal Railroad Administration’s (FRA) Office of Research, Development and Technology worked with Sharma & Associates, Inc. (SA) on an ongoing project to develop prototype Electrically Driven Set and Release Hand Brakes (EDHB) that were engineered and tested for freight car use. After successfully passing a set of in-lab and field performance requirements laid out by the Association of American Railroads’ (AAR) Geared Hand Brake Mechanical Engineering Committee (GHBMEC), its Remote Operation Hand Brake (ROB) task force, and SA, the consensus was to continue to improve the EDHB design. This project focused on the improvement of the EDHB controls, feedback and drive-train efficiency, thereby effectively enhancing the brake’s efficiency, accuracy, and reliability.

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Last updated: Monday, March 18, 2019