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Thesis - University Access Only
Master of Science (MS)
Department / School
Two steering systems, an electrically powered steering system (EPS) and a hydraulically power assisted steering system (HP AS), were developed for Electri-Load, a rear wheel steer electric loader vehicle designed and built at the Agricultural Engineering Department of South Dakota State University. The EPS system utilized two linear actuators and an electronic control unit which received inputs from the steering wheel and the steered wheels to determine the relative steering angle. This system required 0.58 kW of power, which was insufficient at times. The HP AS system consisted of a priority valve, steering control unit, mechanical linkage and hydraulic steering cylinder. The 'hydraulic system required an estimated 4.32 kW of power, a large increase over the EPS system. However, the steering tests on the sinusoidal track found that the HP AS system was significantly better in terms of accuracy and ease of control than the EPS system.
Library of Congress Subject Headings
Electric vehicles -- Steering-gear
Steering-gear -- Design and construction
Industrial electric trucks
Number of Pages
South Dakota State University
Eliason, Steven R., "Development and Design of a Steering System for a Rear Wheel Steer Electric Vehicle" (1990). Electronic Theses and Dissertations. 5349.