关键词: 生鲜产品, 纯电动冷藏车, 充电, 配送路径, 时间窗, 蚁群算法

Abstract: The path optimization problem that the supplier uses the same type of pure electric refrigerated truck to distribute fresh products to the diversified retailers is studied based on the characteristics of fresh products and pure electric refrigerated trucks. The vehicle can travel to the charging station and charge many times and retailer’s requirement on service time are taken into account. A customer soft time window constraint and vehicle mileage constraints of the fresh product delivery path of the mathematical model is constructed based on Solomn standard example to minimize the total delivery cost. The ant colony optimization is designed to solve the model and the vehicle routing program is obtained with the charging plan. Compared with the traditional refrigerated trucks delivery route scheme, the results show that the total cost of the two programs are basically the same. Besides, the pure electric refrigerated trucks can reduce the emission of greenhouse gases and transport costs even though the route length is longer. In addition, the owner can enjoy government subsidies. So, the more pure electric refrigerated truck in line with the needs of suppliers.

Key words: fresh products, pure electric refrigerated truck, charge, distribution routing, time windows, ant colony optimization