With the increasing prevalence of small batch and multi variety production modes in the automotive manufacturing industry, engine companies have developed a large number of modular subpackage scenarios to address the differences in the number of workstations, personnel configuration, and process layout between different engines under this mode, and further enhance the efficiency, flexibility, and scalability of production lines. This paper takes an engine assembly production line as an example to compare the concepts and characteristics of 2 modes, namely, online subpackage and centralized subpackage. The design parameters of the 2 subpackage modes are explained, and a mathematical model of process quota is proposed. MATLAB is utilized to simulate the relationship between process quota and output in the centralized subpackage mode, and the critical conditions for lean management of the 2 subpackage modes are obtained to improve lean control capabilities and provide reference for subpackage planning of related production lines.

Online subpackage  /  Centralized subpackage  /  Mathematical model of process quota  /  Lean management and control