Line segments-based method for inertia resistance calculation of automotive latch systems

This article presents a line segments-based method for calculating the inertia load generated in the cable release system of vehicle latch systems during vehicle collision accidents. The method is proposed based on the theoretical calculation method recommended by GTR No.1 and provides a concise and effective approach for calculating the inertia force produced by the cable release system. It also considers the friction between the wire rope and conduit to prevent redundant design of the latch system. By extracting the spline curve of the cable in CAD software, points on the cable can be effectively identified to construct line segments. This approach saves time in the design and verification process of automobile door latch systems and allows for iterative analysis.