关键词: 电动助力转向系统；主观评价；转向标定；手感差异性能；手感一致性

Abstract: With the development needs of various domestic industries, the demand for miniature cars is still large, and the requirements for steering feel are getting higher and higher. This paper proposes the process of calibrating the feel of electric power steering by simulating the daily use scenarios of users and verifying the performance of guaranteeing the difference in feel. Aiming at the calibration of steering feel, the functions and optimization methods of the three control parameters of the electric power steering system, including power assist, alignment and damping, are mainly introduced, and the system performance target requirements are achieved through subjective verification. In the past, the electric power steering calibration did not require system parts. After mass production, there was a serious difference in feel and quality problems. After the calibration was completed, the parts within the upper and lower limit tolerance range were subjectively evaluated, so that the parts within the tolerance range can meet the product. The definition of performance goals is required to ensure that the steering performance of mass-produced vehicles has a high consistency, and it is hoped that it will serve as a reference for With the development needs of various domestic industries, the demand for miniature cars is still large, and the requirements for steering feel are getting higher and higher. This paper proposes the process of calibrating the feel of electric power steering by simulating the daily use scenarios of users and verifying the performance of guaranteeing the difference in feel. Aiming at the calibration of steering feel, the functions and optimization methods of the three control parameters of the electric power steering system, including power assist, alignment and damping, are mainly introduced, and the system performance target requirements are achieved through subjective verification. In the past, the electric power steering calibration did not require system parts. After mass production, there was a serious difference in feel and quality problems. After the calibration was completed, the parts within the upper and lower limit tolerance range were subjectively evaluated, so that the parts within the tolerance range can meet the product. The definition of performance goals is required to ensure that the steering performance of mass-produced vehicles has a high consistency, and it is hoped that it will serve as a reference for

Key words: Electronic power steering system; Subjective evaluation; Steering calibration; Feel difference performance; Feeling consistency