Truck hunting detection and abatement apparatus using selective brake application
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 22, 1997
Grant Date -
N/A
app pub date -
Jul 2, 1996
filing date -
Jul 2, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A brake control apparatus (8) for a rail car including a truck (14) traveling along a rail (16, 18) includes a truck hunting detection and abatement apparatus (10) for use as part of a brake controller (12). The brake controller (12) is configured for braking the rail car. The apparatus (10) includes a sensor (26) for measuring acceleration of the rail car in a direction transverse to the rail (16, 18), and a control device (24) of the brake controller (12). The control device (24) includes a microprocessor (30) and is responsive to the sensor (26) for comparing the measured acceleration of the rail car with a predetermined acceleration limit. The control device (24) is configured to apply the brakes when the measured acceleration exceeds the predetermined acceleration limit. The control device (24) also determines the time interval between successive brake applications, and generates a message for transmission to a train locomotive moving the rail car when the measured time interval is less than a predetermined time interval limit, alerting the locomotive engineers of excessive truck hunting.
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