Actuation and modeling for drive-by-wire applications are discussed. Previous work in advanced actuation for two automotive systems, active suspension and camless engines, is surveyed, outlining the major advancements throughout the previous decade. More recent research in these areas is discussed and focuses on recent improvements to system modeling and design. Specifically, a four-corner suspension model and a piezoelectric piloted hydraulic actuator for engine valve actuation are introduced. The four-corner suspension model addresses the three-dimensional parameters associated with active suspension design and improves upon the accepted quarter-car model. The piezoelectric based camless engine actuator is introduced as the next generation of camless engine actuation systems and addresses control issues through the relationship between input voltage and piezoelectric displacement.
Advances in Actuation Systems to Improve Vehicle Performance and Safety
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Brader, JS, Trevett, NR, & Rocheleau, DN. "Advances in Actuation Systems to Improve Vehicle Performance and Safety." Proceedings of the ASME 2003 International Mechanical Engineering Congress and Exposition. Transportation: Making Tracks for Tomorrow’s Transportation. Washington, DC, USA. November 15–21, 2003. pp. 105-111. ASME. https://doi.org/10.1115/IMECE2003-41214
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