Intelligent fuse box of new energy automobile

Abstract

The invention discloses an intelligent fuse box of a new energy automobile. The intelligent fuse box comprises a first fuse box arranged in a cab and a second fuse box arranged in an engine compartment. The first fuse box comprises a first control unit, a first wire harness interface module, a first fuse module, a first relay module, a first low-side driving chip, a first high-side driving chip, a first communication module and a first power supply chip; the second fuse box comprises a second control unit, a second wire harness interface module, a second fuse module, a second relay module, a second low-side driving chip, a second high-side driving chip, a second communication module and a second power supply chip; the first communication module is connected with the second communication module through the first wire harness interface module, the signal wire and the second wire harness interface module, and the first fuse module is connected with the second fuse module through the first wire harness interface module, the power line and the second wire harness interface module. The system has the functions of power distribution and vehicle body control, can reduce the use of wire harnesses, and reduces the cost.

Description

technical field [0001] The invention belongs to the field of automobile fuse boxes, and in particular relates to an intelligent fuse box for new energy automobiles. Background technique [0002] The fuse box plays the role of power distribution on the whole vehicle. At present, fuel vehicles and new energy vehicles on the market mainly use two kinds of relay boxes, in-line or PCB board. The in-line relay box is low in cost, but it is made together with the wiring harness, which limits the segmental arrangement of the wiring harness and makes assembly difficult. The relay box on the PCB board solves the problem of layout and assembly, but the traditional fuse and relay are still used, and after the onboard relay is damaged, the entire relay box is scrapped, and the cost is higher than that of the in-line relay box, and the overall advantage is not obvious . [0003] Wipers, door locks, headlights, windows and other functions are all controlled by the body controller. There...

AI Technical Summary

Problems solved by technology

However, this control method will cause the wire harness to go around from the indoor to the outdoor load, resulting in a long wire loop.

Moreover, the body controller is also a load, which requires a traditional fuse box to provide power to the body controller, which will also increase the number and length of the wiring harness.

In addition, after-sales vehicles have problems, the troubleshooting steps are complicated. It is necessary to check the insurance, relays, wiring harnesses, and body controllers. The workload is heavy, time-consuming and labor-intensive.

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