Research On Comprehensive Quality Evaluation Of Economic Passenger Automobile

When customers are going to purchase the automobiles,they first put the quality factors and cost factors as the core factors.If the automobile enterprise want to seize the customer’s heart in the fierce competition market,they must provide high-quality and low-priced products to achieve the satisfaction of customer and create a win-win situation of business value.Therefore,the research of overall quality has caused the domestic and international quality management researchers and enterprises to concern about the serious issue.The rapid development of automobile industry is due to the strong demand of consumer purchasing power.When facing an array of automotive products,how to decide a choose for consumers will be a question.In order to evaluate the overall performance of automotive products,we did this paper.In view of the imperfection of the research on the existing automobile overall quality model,the customers’ purchase decision is guided by the appropriate method.Combining the customer demand,we consider the quality and the total cost of ownership.The main contents of the paper are as follows.Firstly,this paper analyzes the traditional automobile quality index,and construct the comprehensive quality evaluation index system of the automobile through the network collection,the literature research and the attribute reduction theory of the rough set.Combining with the actual consideration of the customers’ purchasing demand,we add the service quality and the total cost of ownership to the index system.Secondly,the definition and characterization of the criteria in the comprehensive quality index system of the automobile are studied.Criteria for qualitative and quantitative methods are used for different criteria.The quality of service model is constructed.The service quality model is constructed by AHP and fuzzy comprehensive evaluation method.The total cost of ownership model is constructed from the perspective of customers’ use of automobile,and the cost of purchasing and maintenance cost are expressed by quantitative method.The normal distribution applies to the fuel economy.Based on the after-sales maintenance data,we use the average failure frequency to predict the maintenance cost.Also we put forward the accounting method of the invisible cost from the angle of customers.Aiming at the diversity of evaluation criteria,this paper proposes a mixed multi-criteria decision-making model combined with the entropy method and VIKOR method.In order to calculate the weight of the index and the weight of the decision makers,the entropy method is introduced.The VIKOR method is introduced to make the decision on the overall quality of the automobile.Then through the practical case of five alternative models,the comprehensive quality evaluation index system and the mixed multi-criteria decision model are applied to the customer’s automobile decision-making.Through the sensitivity analysis of index and the sensitivity analysis of the decision-making mechanism,we combine the practical data to verify the applicability of the mixed multi-criteria decision-making model and model of the overall quality constructed.The paper provides a decision-making basis for purchasing choice.