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What are the new energy vehicle wiring harness standards? How to control the quality?

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Specializing in the sales of: Connectors | Wire Harness | Cable Products

The design and manufacture of wiring harnesses for new energy vehicles need to follow a series of standards and specifications to ensure their safety, reliability and performance. The following are some of the standards related to wiring harnesses for new energy vehicles: 1. ISO 6469: This is a safety standard for new energy vehicles issued by the International Organization for Standardization (ISO), which contains requirements for electrical systems and wiring harnesses, including electrical insulation, electrical safety, battery management systems, etc. 2. LV214-4: This is a standard issued by the German Society of Automotive Engineers (VDA) for electrical and electronic components, including requirements for wiring harnesses, such as voltage resistance, temperature cycling, fire performance, etc. 3. components, including requirements for wiring harnesses, such as voltage resistance, temperature cycling, fire performance, etc. 3.SAE J1939: this is a standard issued by the Society of Automotive Engineers (SAE) for vehicle communication networks, which covers the communication protocols and physical layer requirements for wiring harnesses for new energy vehicles.4.GB/T 18488.1-2015: this is a Chinese standard that specifies safety requirements for high-voltage wiring harnesses used in new energy vehicles and the physical layer requirements for wiring harnesses used in new energy vehicles. GB/T 18488.1-2015: this is a Chinese standard that specifies the safety requirements and test methods for high-voltage wiring harnesses for new energy vehicles, including voltage resistance test, electrical performance test, etc. 5. UL 2271: this is a standard issued by the U.S. Safety Laboratory (UL), which covers the safety requirements for lithium-ion battery systems, including electrical insulation and protective measures. Quality control is an important part of ensuring that the wiring harnesses of new energy vehicles comply with standards and specifications. The following are some common quality control methods: 1. Raw material selection: select high-quality insulation and conductor materials that meet the standard requirements to ensure their electrical performance, voltage resistance and weather resistance. 2. Process control: establish strict production process and standard operating procedures, including wire cutting, insulation stripping, crimping, insulation sleeve installation and other process links to ensure stable quality in each link. 3. Automated production: Adopt automated equipment and robotics for the production of wire harnesses to improve production efficiency and consistency, and reduce quality problems caused by human factors.4. Strict inspection and testing: Conduct comprehensive inspection and testing of wire harnesses, including resistance testing, insulation resistance testing, high-voltage voltage withstand testing, connectivity testing and so on, in order to ensure that the wire harnesses comply with the specified requirements of the electrical performance.5. Sampling inspection: Conduct sampling inspections in the Sampling inspection: conduct sampling inspection during the production process to check the quality of the wiring harness, and correct problems in production in a timely manner to ensure that the product meets the requirements.6. Integration test: in the process of vehicle manufacturing, the wiring harness of the new energy vehicle is subjected to a system-level integration test, including the functional test of the electrical system, the test of communication protocols and so on, in order to ensure that the wiring harness works properly in the vehicle.7. Quality management system: establish a sound quality management system, including quality control plan, non-compliance test, etc., to ensure that the harness meets the specified electrical performance requirements. Quality management system: establish a sound quality management system, including quality control program, non-conforming product handling, continuous improvement, etc., to ensure the traceability of the production process and quality stability. In summary, new energy vehicle wiring harnesses need to follow a series of standards and specifications, such as ISO 6469, LV214-4, SAE J1939, GB/T 18488.1-2015 and UL 2271. At the same time, quality control is carried out through raw material selection, process control, automated production, strict inspection and testing, sampling inspection, integrated testing and quality management system to ensure the quality and reliability of new energy vehicle wiring harnesses.

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