B - Operations – Transporting – 60 – T
Patent
B - Operations, Transporting
60
T
B60T 13/66 (2006.01) B60T 15/14 (2006.01)
Patent
CA 2090308
ABSTRACT OF THE DISCLOSURE A recoverable bail-off circuit and a direct release and non-recoverable bail-off circuit for enhancing the bail-off function of the air brake pressure on a railway locomotive including a first logic circuit for ascertaining when a non-recoverable bail-off command is present by determining the presence of a manual bail-off signal or the presence of a dynamic bail-off signal and by determining the absence of an emergency brake signal, an electronic and logic circuit for ascertaining when a direct release command is present by determining a freight/passenger mode signal and that a present brake pipe pressure signal is greater than a previous brake pipe pressure signal by a certain pressure and a second logic circuit for ascertaining when a recoverable bail- off command is present by determining the presence of said manual bail-off signal or the presence of a dynamic bail-off signal and determining the presence of said emergency brake signal. - 21 -
R. William Wray & Associates
Westinghouse Air Brake Company
LandOfFree
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