KSK is the initial embodiment of customer customization in industrial production. Some large OEMs in Germany have begun to adopt modular production. After determining the combination of engine and transmission, customers can freely customize the interior and exterior of the car and electronic functions. Combination. However, such a production and development method has not yet been popularized in the Chinese market. At present, only Volkswagen, Audi, Skoda, BMW and Mercedes-Benz have adopted the modular production method. Among them, only some models of Volkswagen and Skoda have completed the development of modular wiring harnesses in China, and the rest are Production for drawings. China still has huge potential in the direction of modular production.