Abstract
Magnetorheological (MR) regenerative suspension system can not only achieve excellent comprehensive suspension performance but also effectively recover and utilize vibration potential energy, which has been a research hotspot in the field of vehicle engineering. In this paper, for the 1/4 vehicle’s MR regenerative suspension system parallel with a tubular permanent magnet linear motor (TPMLM), the dynamic model of the MR semi-active suspension system and the TPMLM finite element model are established separately to form a joint simulation platform. The simulation analysis of the comprehensive suspension performance and regeneration performance under different road excitations is performed. The results show that installing TPMLM does not change the natural resonance frequency of the suspension system, which ensures good driving comfort and handling stability. At the same time, it has considerable regeneration power. This research can provide a reference for the stability analysis and popularization of the vehicle’s MR regenerative suspension system.
Highlights
The suspension is an important assembly and functional part of the vehicle
With the increasingly prominent worldwide energy problems, energy conservation and utilization have become another important topic in the field of vehicle engineering
The tubular permanent magnet linear motor (TPMLM) finite element model is established in Ansys/Maxwell, and the vehicle MR semi-active suspension system dynamics model is established in Matlab/Simulink to build the joint operation on the Simplorer platform
Summary
The suspension is an important assembly and functional part of the vehicle. Magnetorheological (MR) semi-active suspension system has become a research hotspot in the field of vehicle suspension due to its simple structure, low energy consumption, and adaptability to various road conditions. Huang et al [4] established a vehicle regenerative suspension model for the electrodynamic active regenerative suspension of permanent magnet direct current brushless motor combined with a ball screw structure and analyzed its mechanical properties and regenerative characteristics. The addition of the regenerative device may cause the suspension resonance point to shift, changing the inherent suspension characteristics of the vehicle, which has not been effectively improved To solve this problem, based on the joint simulation, this paper establishes the MR regenerative suspension system simulation model in parallel with TPMLM, to analyze the system’s comprehensive suspension performance and regenerative characteristics by observing the inherent suspension characteristics under different road excitations. The explanations of ms , mu , Ks , Kt , Fd , Fm , Ct , xi, xu , xs are listed in the main-text
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