Michigan Department of Transportation

Data-Driven State of Charge Estimation for Lithium-Ion Batteries Based on Polynomial Surface Fitting Under Dynamic Driving Cycles

Abstract The accurate estimation of state of charge (SOC) for lithium-ion batteries is critically important for battery management systems (BMS) in electric vehicles, yet it remains challenging under highly dynamic driving cycles due to strong nonlinearities, sensor noise, and mo...

Longitudinal Joint Quality Assurance: Threshold for Dielectric-Based Index

Abstract Compaction quality at longitudinal joints (LJ) is critical for hot-mix asphalt (HMA) pavement durability. Traditional quality assurance (QA) methods, relying on pavement cores, are labor-intensive, time-consuming, costly, and limited in coverage. The Dielectric Profiling...