This paper presents a fundamental vehicle suspension system using real-time computer control. This Computer-Optimized Adaptive Suspension Technology (COAST) consists of a microprocessor-controlled, fully integrated, adaptive suspension system. COAST is capable of providing near-optimum performance for any land surface vehicle in any environment and can be implemented in a relatively simple and cost-effective manner. Each COAST suspension unit consists of a patented electronically controlled damping device and air spring. The damping device incorporates a novel valve that operates in conjunction with two solenoids to provide almost instant and infinite variable compression and rebound damping forces that are predominantly independent of piston velocity. In addition, each unit incorporates a novel position sensor that provides the required inputs to the microprocessor to optimally control the vehicle. Beyond the conventional load-leveling capabilities of the air spring, the COAST utilization of a microprocessor will automatically adjust the height to accommodate varying road surfaces, forming an adaptive load-leveling function. The patended COAST control process provides simultaneous real-time optimum control of all of the parameters of suspension movement, including roll, pitch, sprung natural frequency, unsprung natural frequency, pumping down, stored energy, topping out, bottoming out, and height control.
Computer-optimized adaptive suspension technology (COAST)
Ein rechneroptimierter adaptiver Stossdaempfer- und Radaufhaengungsmechanismus
IEEE Transactions on Industrial Electronics ; 32 , 4 ; 355-363
1985
9 Seiten, 20 Bilder
Article (Journal)
English
Computer optimized adaptive suspension technology (COAST)
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