Inerter and damping double-skyhook suspension system and control method thereof

Abstract

The invention relates to an inerter and damping double- skyhook suspension system and a control method thereof. The inerter and damping double- skyhook suspension system comprises sprung mass, springs, unsprung mass, tire equivalent springs, an inerter and damping continuous adjustable device, a driving mechanism and an ECU. According to the skyhook inerter and skyhook damping coordinated controlmethod provided by the invention, a skyhook inerter is realized in a semi-active mode, and the control effect is equivalent to an increase of the sprung mass, so that the offset frequency of a vehiclebody is reduced, the smoothness of the vehicle in a no-load state is improved, and the vehicle has better empty-load and full-load adaptive capacity; meanwhile, skyhook damping is achieved through simulation, the control effect is equivalent to dynamic adjustment damping, and therefore the optimal suspension damping ratio can still be kept under different road conditions, and the vehicle has better adaptability to the road conditions.

Description

technical field [0001] The invention relates to an inertial and damping double-canopy suspension system and a control method thereof, belonging to the technical field of semi-active suspension systems. Background technique [0002] The vehicle suspension determines and affects the ride comfort of the vehicle. With the development of the economy and the improvement of people's living standards, the traditional automobile suspension system can no longer meet people's requirements, and the performance of the semi-active suspension is better than that of the passive suspension, and the cost is lower than that of the active suspension. It is the development of the suspension system. The main direction. [0003] Scholars at home and abroad have carried out a lot of research on semi-active control suspensions. The researches on automobile suspension control methods that have been reported so far, such as advanced PID control, fuzzy control, neural network control, adaptive control...

AI Technical Summary

Problems solved by technology

However, when the road conditions change, according to the basic idea of ​​the optimal damping ratio, it is necessary to match the optimal damping online according to different driving conditions to adjust the damping ratio of the suspension system. However, the ceiling inertial suspension cannot adjust the damping and cannot achieve the optimal suspension. damping ratio and therefore not well adapted to changes in road conditions

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