Before carrying out the merged/shared design of fuses, it is necessary to clarify the purpose and significance of the shared design of fuses again. To put it simply, the purpose of fuse sharing is to achieve optimal cost and optimal design on the premise of protecting the original loop wire. This requires us to fully consider the following points when designing fuses:
Whether the functional parts of the fuse to be merged are the same in the installation area of the whole vehicle, and in the design process of the shared fuse, it is necessary to avoid excessively long wire winding.
In fact, the cost advantage is mainly considered to share the fuse with the same functional parts in the installation area. For example, assuming that the shared fuse is located in the engine room fuse box, if this fuse is connected to both the electrical appliances in the engine room and the electrical appliances in the cab, then a separate fuse in the cab is set to protect the power supply of the electrical appliances in the cab The cost of circuit sharing may be greater than the cost of setting the fuse separately (adding the cost of wires from the fuse box in the cabin to the fuse box in the cab and the cost of matching terminals)