The heights of vehicles can be inexpensively estimated by: detecting wheel speeds representing the speed of each wheel (step ST11); performing a frequency analysis of the detected wheel speeds of pairs of left and right wheels, and calculating the respective wheel speed characteristics of the left and right wheels at a gain-specific frequency (step ST12); calculating the difference in gain between the left and right wheel speeds on the basis of the calculated wheel speed characteristics of the left and right wheels (step ST13); and estimating the height of a vehicle on the basis of the correlation between the wheel heights with respect to the bodies of the wheels and values based the wheel speeds and a road surface inputs inputted from a road surface to the vehicle wheels (i.e., wheel speed/road surface input gain), and the difference in gain between the left and right wheel speeds (step ST14).
Vehicle height estimation device and vehicle height estimation method
01.10.2015
Patent
Elektronische Ressource
Englisch
Vehicle height estimation device and vehicle height estimation method
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