几种可应用于电动助力转向系统的应变式扭矩传感器

摘要

A torque sensor is a key component of an auto electric power Steering system (EPS) , and its output characteristics has a direct effect on the accuracy and stability of EPS output. The application principle, characteristics and use scope of sev-eral typical kinds of strain type torque sensors are introduced. Coupled with the research situation at home and abroad, the development trend of strain type torque sensors applied to EPS system is induced.%扭矩传感器是汽车电动助力转向系统（Electric Power Steering，EPS）的关键部件之一，其输出特性直接影响EPS的输出准确性和稳定性。介绍了几种典型应变式扭矩传感器的应用原理、特点和使用范围，结合国内外的研究概况，归纳出应用于EPS系统应变式扭矩传感器的发展趋势。