Automotive Production Sequencing

Project Background

A certain automotive manufacturing enterprise needs to sequence the vehicle models and quantities scheduled in the master plan. It aims to reasonably arrange the number of consecutive productions for each model, meeting both the continuity requirements of vehicle models and avoiding excessive consecutive production to match the parts supply capacity. Meanwhile, it is necessary to reasonably arrange color continuity to reduce unnecessary cleaning times of spray guns.

Customer Pain Points

Manual sequencing fails to generate the optimal production sequence while balancing multiple constraints.

Manual sequencing cannot quantitatively analyze various indicators to evaluate the pros and cons of production sequences.

Manual sequencing takes too long to meet the production requirements for timely market feedback.

Solution

Mathematical optimization combined with decomposition solving to quickly find the optimal scheduling.

Project Outcomes

✔ Production capacity of bottleneck process (painting workshop) increased by 5%-10%

✔ Production costs of painting workshop reduced by 30%

✔ Operation time <30 minutes, market response shortened from "daily" to "hourly" level

✔ Order fulfillment rate improved