This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Development of Feedforward Control Algorithms for Active Suspension
Annotation ability available
Sector:
Language:
English
Abstract
A Slow Active Suspension system has the advantage of requiring less energy than a Full Active Suspension system. But for improving vehicle's attitude control, feed-forward control becomes of paramount importance.
This paper describes the control algorithms utilized in the Slow Active Suspension system that Toyota has just made available on the Japanese market. Special control items specifically developed for this system are;
-
I )
The parameter Kwt, which is the ratio between the estimated differential value of lateral acceleration from steering angle velocity and that from lateral acceleration sensor in order to realize fast response to transient roll control,
-
II )
Side Slip Judgement, which prevents the feed-forward errors in the case of changing co-efficients of surface friction,
-
III )
Heave control, which prevents the vertical motions caused by heave disturbance force in the suspension cylinders during high-G turns.
By means of these algorithms, it has been possible to realize a Slow Active Suspension system that not only raises ride comfort but also accomplishes stable maneuverability and excellent attitude control of the vehicle.
Recommended Content
Authors
Citation
Inagaki, S., Inoue, H., Sato, S., Tabata, M. et al., "Development of Feedforward Control Algorithms for Active Suspension," SAE Technical Paper 920270, 1992, https://doi.org/10.4271/920270.Also In
References
- GOTO KIZU SATO et al. “Toyota Active Control Suspension System for the 1989 CELICA” ISATA 90007 1990 857 864
- Hattori K. Kizu R. Yokoya Y, Ohno H. “Linear pressure control valve for Active suspension” ASME/JASME international computer aided engineering conference and exposition August 5 1990
- Matsuo Y. Harada H. Yamamoto M. “Development of experimental vehicle with integrated chassis control (Study on Active control for vehicle dynamics: 2nd report) proceeding of the JSAE Annual conference 892 October 1989 181 184