ScholarWorks@성균관대학교

초록

In the conventional power trunk locking system for vehicles, the mechanical latch is used. However, because the mechanical latch is exposed on the trunk exterior, it is vulnerable to damage during use. Therefore, this article proposes a novel power trunk locking system using electromagnetic force to remove protrusion of conventional trunk locking system. The proposed system consists of contact plate, magnetic module, gear train, and cinching motor. The electromagnetic force from the permanent magnet in the magnetic module is applied to the contact plate attached to the trunk, thereby maintaining the holding force. In this article, firstly, the principle of a proposed magnetic trunk locking system is introduced. Subsequently, the performance of the prototype magnetic module is analyzed using three-dimensional finite element analysis, and further verified by experimental tests. Furthermore, a magnetic equivalent circuit model is developed to derive a design strategy for weight reduction. Finally, design variables for weight reduction of the magnetic module are selected, and weight reduction design is carried out using machine learning based meta model.

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