TSCU (True Speed Calibration Unit)
TSCU eliminates speedometer error due to locomotive wheel wear. The TSCU installs between the locomotive axle speed pickup and the locomotive speed indicator. The TSCU uses The Global Positioning System (GPS) to generate a speed signal correction factor that automatically corrects the speed indicator signal thus providing an exact speed indication regardless of wheel wear. This new product is already in use by two class 1 railroads. Kit includes the TSCU unit, cables, mounting bracket and instructions for installation which takes between 1-2 hours. Wireless access to unit allows information retrieval including current and historical wheel measurement.