关键词: 电动循环球转向器；转向系统；操纵稳定性；主观评价；标定调试

Abstract: The proportion of electric recirculating ball steering gear in new energy commercial vehicles is gradually increasing, and its matching application is very important for the functional performance realization of the steering system. In the paper, the matching steps and methods of the electric recirculating ball steering gear are proposed through the structural principle and selection principle of the electric recirculating ball steering gear, combined with the application examples, and its key parameters are determined through the method. In order to ensure the realization of the best performance, it is necessary to calibrate and debug the electric recirculating ball steering gear in combination with the actual vehicle, and ensure that its function is better matched with the vehicle through manual calibration and zeroing calibration, and so on. In order to ensure that the selection results can meet the design objectives, the objective test of the handling stability and the subjective evaluation of the steering performance of the assembled vehicle are carried out, and results are proved that the performance is excellent. Through the above steps, a set of systematic matching application process is formed, which provides some reference methods and experience for the selection and matching application of electric recirculating ball steering gear for commercial vehicles.

Key words: electric circulating ball steering gear; steering system; manipulation stability; subjective evaluation; calibration and debugging