公开(公告)号：US20220349762A1

公开(公告)日：2022-11-03

申请号：US17753716

申请日：2019-09-13

申请人： KA Group AG

发明人： Jean-Francois Veillette ,  Serge Kaldany

IPC分类号： G01L3/10 ,  G01L5/22

摘要： A torque sensor assembly including a shaft configured to receive an applied torque. The shaft includes at least one region being magnetoelastic and configured to generate a magnetic field in response to the applied torque. A plurality of sensors, circumferentially positioned around the at least one region, configured to generate a plurality of signals that are indicative of the magnetic field. Each of the plurality of signals includes multiple harmonic components. A controller is connected with the plurality of sensors and being configured to receive the plurality of signals and determine (i) an average of the plurality of signals in order to cancel at least one of the harmonic components of the multiple harmonic components for each of the plurality of signals, and (ii) a magnitude of the applied torque based on the average of the plurality of signals.

公开(公告)号：US20220034734A1

公开(公告)日：2022-02-03

申请号：US17503189

申请日：2021-10-15

申请人： KA Group AG

发明人： Jean-Francois Veillette ,  Serge Kaldany

IPC分类号： G01L3/10

摘要： A torque sensor including a shaft that receives an applied torque is disclosed. The shaft includes a magnetoelastic region that generates a non-negligible magnetic field responsive to the applied torque and null regions that generate a negligible magnetic field. The torque sensor includes null region sensors that generate a null region magnetic field measure corresponding to an ambient magnetic field. The torque sensor includes a magnetoelastic region sensor that generates a magnetoelastic region magnetic field measure corresponding to the ambient magnetic field and the non-negligible magnetic field. The torque sensor includes a controller that determines whether a null region sensor has entered an intense ambient magnetic field condition and whether a magnetoelastic region sensor has entered a magnetoelastic region sensor saturation condition. The controller also calculates a magnitude of the applied torque based on the null region magnetic field measures and the magnetoelastic region magnetic field measure.