B - Operations – Transporting – 60 – T
Patent
B - Operations, Transporting
60
T
B60T 17/18 (2006.01) B60T 17/22 (2006.01) F16D 66/00 (2006.01) G06F 7/00 (2006.01) G06F 19/00 (2006.01) B60K 6/02 (2006.01)
Patent
CA 2454996
By calculating the energy used by the friction brake equipment, the amount of friction brake shoe/pad wear can be monitored. As the amount of energy supplied reaches a percentage of the friction brake shoe/pad energy design limit, an indication for inspection is provided. If the supplied friction energy continues to increase beyond this point, the brake material must be replaced. The software logic limits are tunable for custom configuring by the transit authority and maintenance personnel. This invention measures the amount of friction effort supplied with respect to time and distance in a software controlled brake system. Furthermore, this invention allows the software to determine when the friction brake material must be replaced based on actual data, which simplifies the maintenance personnel operation procedures, maximizes brake material wear, and avoids costly damage from braking with worn out shoes/pads. The material life remaining for friction brakes is determined currently by a visual inspection followed by a 'best guess' as to whether the material will last until the next scheduled inspection. This invention will annunciate through the software logic program when the friction material requires inspection and replacement. Additionally, the invention provides software logic to indicate the remaining material thickness.
Dewberry James T.
Scharpf Robert N.
Schweikert David E.
Macrae & Co.
Westinghouse Air Brake Technologies Corporation
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