关键词: 电子换挡器；换挡旋钮；结构设计；操作手感

Abstract: At present, the market share of E-shifter products is not high, and the technical competitiveness is weak. To this end, take the research and development process of knob type E-shifter used in new energy models as an example, explain its functional principle, structural design scheme, and the design process of knob operating torque and operating feel. In the design of knob operating torque, because the friction torque is difficult to be estimated accurately, a method of fuzzy theory design with multi-type springs physical verification is proposed. The measured results meet the design requirements, this method could effectively reduce the difficulty and development time. Finally, the research experience of similar products is summarized from the selection of feel scheme, reducing friction torque, shock vibration, etc., which provides a reference for the structural design and optimization of similar products.

Key words: e-shifter; shift knob; structural design; operating feel