Model Following Damping Force Control for Vehicle Body Motion during Transient Cornering
Journal Article
10-06-04-0023
ISSN: 2380-2162, e-ISSN: 2380-2170
Sector:
Citation:
Kikuchi, H. and Inaba, K., "Model Following Damping Force Control for Vehicle Body Motion during Transient Cornering," SAE Int. J. Veh. Dyn., Stab., and NVH 6(4):339-356, 2022, https://doi.org/10.4271/10-06-04-0023.
Language:
English
Abstract:
The aim of this study is to achieve the target transient posture of a vehicle
according to the user’s steering operation. The target behavior was hypothesized
to be a roll mode in the diving pitch, even during steering inputs on rough
surfaces, in order to improve subjective evaluation. As a result of organizing
the issues of feedforward control (FF) and feedback control (FB), we
hypothesized that it would be appropriate to follow the ideal posture. The model
following damping control (MFDC) was newly proposed by the authors as a solution
to a control algorithm based on model-following control. The feature employs
skyhook control (SH), which follows the deviation between the behavior of the
reference model, which generates a target behavior with no input from the road
surface, and the actual behavior of the vehicle. Numerical analyses were
performed to verify the followability of the target behavior and the effect of
roll damping performance. As a result of conducting actual vehicle experiments
under driving conditions involving road surface input during steering, the MFDC
was found to reduce the roll rate with respect to the steering angle by −6.4 dB
compared to SH only.