Authors

Abstract

To meet the economy requirement of the horticultural machinery, a two-speed transmission system was proposed based on the characteristics of the driving cycle of the horticultural machinery. Firstly, the test cycle of the horticultural machinery was established based on the data collector that fixed on the machinery. Secondly, the two-speed driveline system was designed. To reduce the energy consumption in the horticultural machinery working cycle, the gear ratio of the two-speed gear box was optimized with the goal of minimum energy consumption by the Genetic Algorithm. The optimized gear ratio were 11.6 and 9.62. The comparison of energy consumption between single gear ratio and two-speed gear ratio was made. The comparison result showed that the energy consumption can reduce 0.25% under one transportation test condition, the energy consumption can reduce 0.41% under one ploughing test condition, and the energy consumption can reduce 0.41% under one rotary test condition.

Abstract in Chinese

针对纯电动园艺作业动力机械使用周期内需具备田间道路行驶和满足不同作业需求的特点，本研究考虑不同作业工况的经济性，提出了一种两挡园艺作业动力机械动力传动系统。根据园艺作业动力机械的工作特点，构建了作业工况模型，以作业过程能耗最小为目标，两挡变速箱的传动比为变量，采用遗传算法对两挡位变速箱的传动比进行优化，得到1挡和2挡的传动比分别为11.6和9.62。并将优化后的传动比与单挡位的情况进行对比，结果表明：优化后的双挡位变速箱在单个运输测试工况下能耗降低0.25%，单个犁耕测试工况下，能耗降低0.41%，单个旋耕测试工况下，能耗降低0.41%。