1. Golden rules of rail braking
As a prelude to any study of braking control technologies, it is important to remember the six golden rules that all railway braking systems must meet:
automaticity ;
continuity ;
inexhaustibility ;
moderability ;
tranquility ;
testability.
Definitions of each are given in the following paragraphs.
Automaticity is certainly the most important design principle for a rail braking system. A rail convoy is made up of vehicles linked together by coupling devices (permanent rods, automatic couplers or screw couplers). However, such devices have mechanical limits which, under certain circumstances, can be exceeded as a result of high longitudinal forces...
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Golden rules of rail braking