Method and algorithm of automatic estimation of road surface type for variable damping control

Scientific Conference on Automotive Vehicles and Combustion Engines 2016

Dabrowski, K.^1 ; laski, G.^1

Poznan University of Technology, Poznan, Poland^1

关键词: Adaptive control strategy;    Automatic estimation;    Preliminary analysis;    Road surface estimation;    Suspension damping;    Suspension dynamics;    Suspension response;    Variable damping;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/148/1/012028/pdf
DOI  :  10.1088/1757-899X/148/1/012028

来源: IOP

【 摘 要 】

In this paper authors presented an idea of road surface estimation (recognition) on a base of suspension dynamic response signals statistical analysis. For preliminary analysis cumulated distribution function (CDF) was used, and some conclusion that various roads have responses values in a different ranges of limits for the same percentage of samples or for the same limits different percentages of samples are located within the range between limit values. That was the base for developed and presented algorithm which was tested using suspension response signals recorded during road test riding over various surfaces. Proposed algorithm can be essential part of adaptive damping control algorithm for a vehicle suspension or adaptive control strategy for suspension damping control.