Enhanced crosswind estimation
AssigneeFord Global Technologies, LLC
InventorsHsin-Hsiang Yang, Kwaku O. Prakah-Asante
Life of this patent
Estimating the term…
Abstract
A device may identify a first forgetting factor accounting for a rate of change of vehicle uncertainty and a second forgetting factor accounting for a rate of change of crosswind estimation. The device may utilize a recursive-least-squares heuristic executed by a crosswind and vehicle uncertainty estimator and specialized with the first and second forgetting factors to determine vehicle uncertainty and crosswind estimation from driver steering inputs and crosswind disturbance inputs, the first and second forgetting factors accounting for relatively slower-changing vehicle uncertainty and relatively faster-changing crosswinds.
Claims21
A method, comprising:
- identifying a first forgetting factor accounting for rate of change of vehicle uncertainty and a second forgetting factor accounting for rate of change of crosswind estimation;
- and
- utilizing a recursive-least-squares heuristic executed by a crosswind and vehicle uncertainty estimator specialized with the forgetting factors to determine vehicle uncertainty and crosswind estimation from driver steering and crosswind disturbance inputs, the forgetting factors accounting for relatively slower-changing vehicle uncertainty and relatively faster-changing crosswinds.
A computing device storing a crosswind and vehicle uncertainty estimator application, the crosswind and vehicle uncertainty estimator application being executable by a processor of the computing device to provide operations comprising:
- identifying a first forgetting factor accounting for a rate of change of vehicle uncertainty and a second forgetting factor accounting for a rate of change of crosswind estimation;
- and
- utilizing a recursive-least-squares heuristic specialized with the first and second forgetting factors to determine vehicle uncertainty and crosswind estimation from driver steering inputs and crosswind disturbance inputs, the first and second forgetting factors accounting for relatively slower-changing vehicle uncertainty and relatively faster-changing crosswinds.
A non-transitory computer readable medium storing a crosswind and vehicle uncertainty estimator application software program, the crosswind and vehicle uncertainty estimator application being executable to provide operations comprising:
- identifying a first forgetting factor accounting for a rate of change of vehicle uncertainty and a second forgetting factor accounting for a rate of change of crosswind estimation;
- and
- utilizing a recursive-least-squares heuristic specialized with the first and second forgetting factors to determine vehicle uncertainty and crosswind estimation from driver steering inputs and crosswind disturbance inputs, the first and second forgetting factors accounting for relatively slower-changing vehicle uncertainty and relatively faster-changing crosswinds.
Dependencies are inferred from the claim text.