关键词: 减速器润滑；结构优化；高集成电驱动；壳体设计；SPH 方法；商用车

Abstract: With the global focus on carbon emissions and the demand of customers for lower car costs, the electrification of commercial vehicles has become the development trend of this industry. The integrated electric drive is a newly developed products in our company. Its structure is completely different from the traditional axle structure. The lubrication experience of traditional axle industry can not meet the design requirements of reducer housing in electric drive system. How to design the lubrication structure of reducer has become the focus of designers. This paper provides an example of structural optimization of reducer based on smoothed particles hydrodynamics (SPH) method, and the effectiveness of lubrication structure optimization is proved by bench test. This example can provide reference for optimization design of lubrication structure of similar products.

Key words: Reducer lubrication; Structure optimization; Integrated electric drive system; Housing design; SPH method; Commercial vehicles