Development of A New Automotive Active Suspension System

[摘要] The main objective was to develop a smart new vehicle suspension system that minimizes the road irregularities impact on the driver, also to increase performance and stability of the vehicle at high speeds. The central idea is based on modifying the normal passive suspension system into a computer controller hydraulic actuated active suspension system simply by adding a new component such as a hydraulic cylinder on a normal passive system. The new suspension system is economical to be wildly used in consumer's cars with low prices. The new added components was analytically tested and modeled according to different parameters. A new test rig was implemented to simulate a real quarter suspension system. The new suspension model was controlled by feedback controller according to the road conditions; the controller output controls the cylinder actuator to compensate the road oscillations and increases the vehicle stability for the passenger. Finally, to maximize the aerodynamics coefficients of the vehicle during high speeds by controlling the vehicle clearance level from the ground to achieve full stability, steering and fuel economy.

[发布机构] German University in Cairo, Mechatronics Engineering Department, Cairo, Egypt^1;German University in Cairo, Head of Industrial Automation Department, Cairo, Egypt^2

[效力级别] 无线电电子学

[关键词] Controller outputs;Feedback controller;Hydraulic cylinders;Passive suspension system;Road irregularities;Suspension system;Vehicle stability;Vehicle suspension systems