关键词: 国产汽车, 千台车维修频次, 千台车抱怨数, 系统动力学, 质量经济性, 仿真

Abstract: To study the quality of economics of automobile parts and domestic vehicles from total lifecycle perspective,a system dynamic model based on the quality generation of automobile and continuous quality improvement procedure was established.In light of the Two Dimensional Quality Related Cost (2D-QRC),the Prevention-Appraisal-Failure(PAF) cost and lifecycle cost were highlighted to describe the economy of auto products.The maintenance frequency per thousand vehicles (R/1000@3MIS) and customer complaints per thousand vehicles (TGW/1000@3MIS) indexes were employed to reflect the quality level of key parts and automobile products.To evaluate the quality of economics of automobile product,Vensim PLE was applied to simulate the constructed system dynamics model,which could derive the variation trend of key indicators in different quality investment portfolios of specific quality activities.The simulation results showed that the quality investment could improve the performance of quality of economic indicators,especially by quality improvement of key parts and supplier management,and there existed the obvious discrepancy of improvement performance among different quality activities and improvement strategies.The domestic automotive industry could improve the quality of economics of their products with key outsourcing parts enhancement,which would provide theoretical support and practical reference to the future research on strategic quality improvement plan establishment.

Key words: domestic automobile, R/1000@3MIS, TGW/1000@3MIS, systems dynamics, quality of economics, simulation