具有感应地联接、相互啮合的部件的扭矩传感器

文档序号:1866135 发布日期:2021-11-19 浏览:18次 >En<

阅读说明:本技术 具有感应地联接、相互啮合的部件的扭矩传感器 (Torque sensor with inductively coupled, intermeshing components ) 是由 佐尔坦·鲍劳尼奥伊 盖尔盖伊·达洛基 拉斯洛·费克特 杰尔格利·拉奇 阿多尔然·科瓦奇 于 2020-03-31 设计创作,主要内容包括:本发明涉及一种扭矩传感器(12),该扭矩传感器用于对引入到机动车辆的上部轴(3)中的扭矩进行测量,其中,能够围绕纵向轴线(100)旋转的上部轴(3)可以经由扭转杆(12)连接至下部轴(30)。扭矩传感器(11)具有两个相互啮合的部件,其中,第一部件(13)可以连接至上部轴(3)并且第二部件(14)可以连接至下部轴(30)。部件(13、14)具有沿纵向方向突出的表面,其中,一部件(13、14)的表面与另一部件(13、14)的相关联的表面沿纵向方向至少部分地交叠。扭矩传感器具有至少一个传感器对,其中,一个传感器对具有:传感器线圈(23),该传感器线圈布置在一部件(13、14)的沿纵向方向突出的表面中的一个表面上,该传感器线圈可以产生高频的交变磁场;以及金属元件(22),该金属元件布置在另一部件(13、14)的沿纵向方向突出的表面中的一个表面上。引入到上部轴(3)中的扭矩引起传感器线圈(23)与金属元件(22)之间的距离的改变,其中,扭矩传感器包括下述装置:该装置设计成对由距离的改变引起的交变磁场的频率进行测量以及根据该频率确定引入到上部轴(3)中的扭矩。(The invention relates to a torque sensor (12) for measuring a torque introduced into an upper shaft (3) of a motor vehicle, wherein the upper shaft (3) rotatable about a longitudinal axis (100) can be connected to a lower shaft (30) via a torsion bar (12). The torque sensor (11) has two mutually engaging parts, wherein the first part (13) can be connected to the upper shaft (3) and the second part (14) can be connected to the lower shaft (30). The parts (13, 14) have surfaces protruding in the longitudinal direction, wherein the surface of one part (13, 14) at least partially overlaps the associated surface of the other part (13, 14) in the longitudinal direction. The torque sensor has at least one sensor pair, wherein one sensor pair has: a sensor coil (23) which is arranged on one of the surfaces of a component (13, 14) projecting in the longitudinal direction and which can generate a high-frequency alternating magnetic field; and a metal element (22) that is arranged on one of the surfaces of the other component (13, 14) that protrude in the longitudinal direction. The torque introduced into the upper shaft (3) causes a change in the distance between the sensor coil (23) and the metal element (22), wherein the torque sensor comprises the following means: the device is designed to measure the frequency of the alternating magnetic field caused by the change in distance and to determine the torque introduced into the upper shaft (3) on the basis of this frequency.)

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