Abstract
The mechanical reliability problem of passenger car cockpit facilities layout is increasingly complex and has potential and uncertain risks for human safety while the number of private cars is increasing. A new system of layout design optimization is proposed to solve this problem. First, the optimization sequences of facilities are determined using a hybrid method of multiple-attribute decision-making and entropy. Second, the degree of feeling crowded in the cockpit layout can be adjusted based on customers’ preference. Third, an adapted particle swarm optimization algorithm is proposed to solve the problem of three-dimensional layout optimization in car cockpit human–machine interface according to the ergonomic principles, and the adapted algorithm called smoothing iteration particle swarm optimization is contrasted with those of other common algorithms to demonstrate its advantages. Finally, the optimized layout is analyzed by virtual simulations and compared with the original layout to show the feasibility and effectiveness of the proposed design system. Analysis results indicate that the optimized layout by the new particle swarm optimization can make the operation easier and safer than the original one to enhance ergonomic reliability.
Highlights
With the development of the passenger car in science and technology, more and more new facilities with new functions are needed to be integrated into car cockpit according to the diversification of user demands; there are more stringent requirements on ergonomic safety of passenger car cockpit due to the developing technical and environmental complexity
More attention should be paid to the problems in terms of mechanical ergonomic reliability of the passenger car cockpit layout which could be adjusted according to the different groups of population
The ergonomic reliability is especially important to the cars designed for those specific populations
Summary
With the development of the passenger car in science and technology, more and more new facilities with new functions are needed to be integrated into car cockpit according to the diversification of user demands; there are more stringent requirements on ergonomic safety of passenger car cockpit due to the developing technical and environmental complexity. More attention should be paid to the problems in terms of mechanical ergonomic reliability of the passenger car cockpit layout which could be adjusted according to the different groups of population. A scientific method for optimizing the layout of passenger car cockpit human–machine interface to improve ergonomic reliability is urgently needed. There are only few effective methods for solving the layout optimization problem of passenger car cockpit. A design optimization system for the passenger car cockpit layouts to improve ergonomic reliability is clearly needed. We create a process flowchart to describe how to establish the system first, and explain the process of determining the attribute weights of facilities in the passenger car cockpit and the optimization importance sequences using MADM and entropy method (MADM-entropy).
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