The application discloses stray magnetic field cancellation for steering torque sensor. A method for steering torque sensor stray magnetic field cancellation includes receiving, from at least one magnetic sensor disposed within a torque sensing region, a detected magnetic field corresponding to an angular displacement between an upper steering shaft and a lower steering shaft of an electronic power steering system. The method also includes generating a first torque signal based on the detected magnetic field and receiving, from at least one stray region sensor disposed outside of the torque sensing region, a detected stray magnetic field. The method also includes determining a torque signal error based on the detected stray magnetic field and generating a second torque signal based on thefirst torque signal and the torque signal error. The method also includes selectively controlling at least a portion of the electronic power steering system using the second torque signal.
本申请公开了用于转向扭矩传感器的杂散磁场抵消。一种用于转向扭矩传感器杂散磁场抵消的方法,该方法包括:从设置在扭矩感测区域内的至少一个磁性传感器接收检测到的磁场,该检测到的磁场与电动助力转向系统的上转向轴和下转向轴之间的角位移相对应。该方法还包括:基于检测到的磁场生成第一扭矩信号,以及从设置在扭矩感测区域外部的至少一个杂散区域传感器接收检测到的杂散磁场。该方法还包括:基于检测到的杂散磁场确定扭矩信号误差,以及基于第一扭矩信号和扭矩信号误差生成第二扭矩信号。该方法还包括:使用第二扭矩信号选择性地控制电动助力转向系统的至少一部分。
STRAY MAGNETIC FIELD CANCELLATION FOR STEERING TORQUE SENSOR
用于转向扭矩传感器的杂散磁场抵消
2020-12-22
Patent
Electronic Resource
Chinese
STRAY MAGNETIC FIELD CANCELLATION FOR STEERING TORQUE SENSOR
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