Accurate matching method of automobile fusible cutout and connecting wire

Abstract

The invention discloses an accurate matching method of an automobile fusible cutout and a connecting wire. The accurate matching method of the automobile fusible cutout and the connecting wire comprises the following steps: firstly, establishing a mathematical model of connecting wire rated operational current according to a heating and heat transfer mechanism of the automobile fusible cutout and the connecting wire in the process of working; secondly, establishing a foundation database of a low voltage wire and the fusible cutout for a national standard automobile; lastly, amending a theoretical matching result of the fusible cutout and the connecting wire in the mathematical model of the connecting wire rated operational current according to the foundation database of the low voltage wire and the fusible cutout for the national standard automobile, and acquiring an accurate matching result of the fusible cutout and the connecting wire designed by an automobile electric system. The accurate matching method of the automobile fusible cutout and the connecting wire ensures that parameter matching accuracy between the automobile fusible cutout and the connecting wire is improved greatly, matching between the automobile fusible cutout and the connecting wire is rational, and development efficiency of the automobile electric system is improved. The accurate matching method of the automobile fusible cutout and the connecting wire has good economic benefit and social benefit.

Description

technical field [0001] The invention relates to the matching between electronic devices in an automobile electrical system, in particular to an accurate matching method of an automobile fuse and a connecting wire. Background technique [0002] With the continuous improvement of the degree of electronic electrification of automobiles, the fuses and wiring harnesses of the whole vehicle continue to increase, which makes the weight of the wiring harness continue to increase. Therefore, it is necessary to carry out a lightweight design of the wiring harness for the fuse, and at the same time meet the requirements of the wiring harness in the automotive electrical system. security. [0003] At present, most of the automobile development of domestic auto OEMs relies on mature foreign automobile platforms for development. There is no systematic method for the matching of automobile fuses and connecting wires, and only changes are made on mature models. The self-help R&D and design...

AI Technical Summary

Problems solved by technology

The self-developed design of fuses and connecting wires of automobiles by various OEMs is still relatively crude, and there is no unified standard in China to guide them. Therefore, it cannot meet the requirements of accurate analysis and calculation of fuses and connecting wires in the current electrical system. Requirements, so that the precise matching of fuses and connecting wires cannot be achieved

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