TruckVitals, Onset Detection on Haul-Truck Telemetry (Regime First, Then Residual)
Every haul-truck channel moves with payload, grade and speed, so a change detector run on raw telemetry detects the truck going uphill, not a fault. TruckVitals segments the operating regime FIRST, from context channels that are disjoint from the monitored ones, and detects on the within-regime residual, so an alarm means a developing fault. The headline carries no detector in it: on six-operating-condition NASA C-MAPSS subsets the fault signature is 0.16 sigma of the pooled spread and 11.95 sigma of the within-regime spread, a ratio of 90.2, while the single-condition subsets return exactly 1.00 as a negative control nobody designed. It also ships a published NULL (regime conditioning does not improve onset localisation) and a WITHDRAWN claim (no false-alarm reduction is claimed anywhere, because the raw arm wins that metric on the synthetic lane). The headline changed after a review commissioned to refute it broke three of the four original numbers.
