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3 The cost composition of product cost of wire beam

The cost of electric beam products consists of fixed costs and changes cost, including material costs, working hours, funds, manufacturing fees, management fees, financial expenses, sales costs, mold sharing costs, development costs, etc. Compared with fixed costs such as working hours, manufacturing costs, financial costs, and management expenses, the cost of changes in material costs occupy a higher ratio in wire beam products. In order to meet the fierce terminal sales competition and the cost -effective requirements of end users to the vehicle, the cost contribution of the entire vehicle manufacturer to component suppliers has also continuously put forward new requirements, which is directly reflected in the unit price of product supply. In the face of the requirements of the entire vehicle factory, the price reduction of prices, component suppliers achieve cost reduction targets by improving workers' labor efficiency, VA \ VE, increasing automation rate, and optimizing procurement resources. The following will analyze the competitiveness of cost contributions from design.

4 Typical design optimization scheme

4.1 Optimization principle

Implement the reliability of wire beam products under the conditions of optimal economy.

4.2 Optimization plan

4.2.1 Domesticization of imported components

To localize imported parts, it is a common method for wire beam suppliers to reduce the cost of cable beam products. With the globalization of automobile parts procurement, the price of imported parts and domestic parts is no longer the difference between more than 50%, but it has always maintained a price difference of 10%to 35%. Although key electrical components such as ABS, SRS, various ECUs, and BCMs used in wire beams are still monopolized by international automotive components such as APTIV, Bosch, Siemens, TE with their high -end technical advantages, but some non -key electrical appliances are located The parts suppliers are very widely distributed, and this part of the components are also the focus of localization. Generally speaking, the procurement cost of imported parts in the entire vehicle beam product accounts for 20%to 40%of the material cost, and the material fee accounts for 65%~ 85%of the entire car beam cost. The localization of parts can reduce the cost of the entire car beam product of 1.3%to 11.9%. From the data point of view, the absolute value of the reduction in cost is considerable, but the real implementation has insufficient in some ways.

First of all, the localization of parts and components needs to be completed by the entire vehicle factory, beam supplier and component suppliers. After completing the development of domestic parts, component suppliers need to conduct self -inspection, and self -inspection qualified backline manufacturers must fully data matching and test verification of domestic components in accordance with industry standards or customer standards. After the above tests and tests are completed, the entire vehicle factory needs to conduct on -site assembly and road driving tests on domestic parts. After all the above tests are completed and qualified, they can be put into production after small batches and batch trials. The entire development and test cycle is less than a few months, as many as one year. During this period, the three parties need to be tightly communicated and coordinated with force, which is indispensable.

Second, many domestic component suppliers still have a lot of room for improvement in the development capabilities of composite structures and small specifications. The most common problem in domestic parts is similar to the fact that the appearance and structural requirements are met, but there are still some lack of reliability. Its development capabilities and design verification capabilities.

Third, insufficient supply stability is also another common problem in domestic parts. In addition to the procurement resources of raw materials and the processing accuracy of parts and mold molds, the production process control and quality assurance capabilities of parts suppliers are also an important factor that causes this problem. This also requires the entire vehicle manufacturer and wiring suppliers to continuously improve their process control and quality assurance capabilities through the process review of component suppliers.

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