Active Suspension Control to Improve Ride Comfort at Any Specified Place

Abstract

In this paper, a new active suspension control scheme is developed so that ride comfort at any specified place becomes best. To achieve this end, two ideal models are designed so that ride comfort becomes best at each different place. Then, linearly combining the two ideal models, a combined ideal model is proposed. It should be noted that by using only one design parameter, we can easily make ride comfort at a specified place become best in the proposed combined ideal model. To achieve the good property stated above in real vehicles, a robust tracking controller is proposed. It is shown by numerical simulations that ride comfort at a specified place can be easily improved in the closed loop system using the proposed combined ideal model.