关键词: 新能源轻卡；转向传动系统；车架系统；应力分布；设计理念；关联性设计

Abstract: Light trucks and heavy trucks belong to commercial vehicles, both have similar structures of steering drive system and frame system, but their design concepts are not the same, resulting in the specific structure and design methods are also different. In a new energy vehicle chassis problem of local stress exceeds bid as a starting point, through the design check list and competing goods on the way to troubleshoot the cause of the problem, finally lock reason and spawned new energy vehicle steering drive system and frame system correlation design concept, for the following product design and design problem analysis provides the effective support.

Key words: New energy light truck; Steering transmission system; Frame system; The stress distribution; Design concept; Correlation design