kørselsforskydning

Kørselsforskydning is a Danish term used in engineering and robotics to describe the deviation between a vehicle's commanded trajectory and its actual motion during operation. In English, the term is commonly translated as path deviation or tracking error. The concept is used across fields such as vehicle dynamics, autonomous systems, and robotics to quantify how external factors and system imperfections cause a divergence from the intended path.

Kørselsforskydning arises from a combination of factors, including wheel slip, tire condition and pressure, road surface variations, incline or grade, wind, suspension and steering play, payload distribution, actuator latency, and sensor or calibration errors. In automated systems, it also reflects modeling inaccuracies in the motion control algorithms.

Measurement of kørselsforskydning typically compares the planned or desired position or path with the actually measured trajectory. Common representations include lateral or longitudinal offset over time, or cumulative drift during a run. Data sources may include GPS/RTK, wheel odometry, inertial measurement units, and perception systems such as LiDAR or cameras.

Applications include assessing and tuning control performance, improving path-tracking accuracy in autonomous vehicles and mobile robots, and validating localization and navigation systems. Mitigation strategies focus on reducing slip and sensor error, improving localization fidelity, and using predictive or robust control methods, better tire and chassis maintenance, and enhanced path planning.

Kørselsforskydning is closely related to terms such as path tracking error, localization accuracy, and slip. Understanding and managing it is important for safety, efficiency, and reliability in automated and human-operated systems.