Automotive Wire Harness Process Errors and Protection Aspects

To effectively resolve offline process errors for automotive wiring harnesses, you first identify errors that the software can automatically identify, errors that the software basically needs to correct, and errors that are difficult to identify manually. Harness continuity is essential for all products of automotive wiring harnesses, proving the importance of harness relationships. For wires that need to be punched, first check the punch line for leakage. If the wire number at both ends of the punch line is the same, it is set to wire by default, and it is not retrieved when setting the cycle point, resulting in the loss of punch and baseline number. It could be the same. When threading a thread, a thread with the same thread number must be placed at both ends so that the thread participates in the punching.

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In addition, you must confirm that the signed instruction exists but cannot be retrieved, confirm the output line number, and confirm whether the line numbers at both ends match. The system default value is one line. Second, make sure that there are no input errors in the check-in line, and make clear the circuit relationship in the table. Further, after the signature is completed, it is confirmed that there is an inverse card in the signature map generated by the software. The reverse card causes the pre-installation to fail to draw lines. Finally, it is verified that the punching method meets the drawing technical requirements (for example, ordinary CAN lines and large cross-section lines require ultrasonic punching). Strengthen wiring harness protection: It can be said that in the whole environment of the vehicle, the working environment of the wiring harness not only needs to work in corrosive liquids or gases, but also is affected by high temperature, collision, etc. Phenomena such as environment, insulation wear or wire corrosion often occur, and short circuits occur. In order for the wire harness to work normally, it must have proper protection design. From the perspective of the whole vehicle, the wiring harness must be protected, must be kept away from heat sources, and must be controlled in length and direction. Each segment in the harness must be secured to prevent interference between the harness and surrounding components caused by vehicle vibrations. This can negatively affect stability. In particular, the wire harness is protected from cuts and water or dust leakage as it passes through the body hole and the rubber stopper. The wire harness should adopt an outsourcing design that is wear-resistant, cutting-resistant and corrosion-resistant to improve the reliability of the wire harness. There are many types of packaging materials for wiring harnesses. In high-temperature areas with harsh environment and many surrounding parts, bellows with higher heat resistance level should be selected, such as engine wiring harnesses. The wiring harness in the cockpit can be wrapped with PVC tape or flannel tape if the environment is good. That is, depending on the specific environment, different packaging materials must be used to package and protect the wire harness.

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