关键词: 年款车型；机动性；最小转弯半径；转向器行程；理论分析；实车验证

Abstract: In the general trend of chassis platformization, the chassis of model year models is basically in use. But with the higher requirements for the performance of the vehicle, such as mobility, it is necessary to analyze the original platform and minimize the amount of changes, and verify the real vehicle to meet the market requirements. Based on the theoretical analysis of the influencing factors and the definition of the whole vehicle development scope, this paper finally selects the scheme of increasing the travel of the steering gear, and completes the theoretical analysis and real vehicle verification. It only costs tens of thousands of yuan to repair the model, that is, to optimize the minimum turning radius and solve the problem of market complaints.

Key words: Model year; Mobility; Minimum turning radius; Steering gear travel; Theoretical analysis; Real vehicle verification