“…Various control algorithms utilizing different types of power actuators (electric, pneumatic, hydro-pneumatic, magnetic and commercialized magneto-rheological fluid, etc.) are documented in the literature (Margolis, 1983;Karnopp & Margolis, 1984;Karnopp, 1985;Hrovat, 1991;Elmandy & Abdujjabbar, 1990, 1992Youn & Hac, 1995;Ogawa, Satoh, & Enomoto, 1996;Toyofuku, Yamada, Kagawa, & Fujita, 1999;White, 2000). The majority of on highway trucks (class 8) use air suspension and some type of ride height control system.…”