Invention Grant
- Patent Title: Torque and angular sensor
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Application No.: US16107191Application Date: 2018-08-21
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Publication No.: US10718637B2Publication Date: 2020-07-21
- Inventor: Haimian Cai , Siqi Cheng , Changhe Huang , Thaddeus Schroeder , Christopher Mark Thrush
- Applicant: China Automotive Systems, Inc.
- Applicant Address: CN Wuhan
- Assignee: CHINA AUTOMOTIVE SYSTEMS, INC.
- Current Assignee: CHINA AUTOMOTIVE SYSTEMS, INC.
- Current Assignee Address: CN Wuhan
- Agency: Dickinson Wright PLLC
- Main IPC: G01D5/20
- IPC: G01D5/20 ; G01L3/10

Abstract:
A torque and angular sensor includes a differential angle sensor to precisely measure a differential angle between an input shaft and an output shaft and an angular position sensor to measure the angle of at least one of the shafts over a full angular range. The differential angle sensor measures an output rotation angle of an output target and an input rotation angle of an input target using changing voltages in taps on the input and output coils, which each carry an AC excitation current and which are each inductively coupled with teeth on targets fixed to rotate with one of the shafts. Input shaft rotation angle region is combined with the input angular position as a rotation angle composite. A raw torque angle is determined based on the difference between the input and output rotation angles. Rotational and Linear compensation provides a high-precision torque angle.
Public/Granted literature
- US20180372513A1 TORQUE AND ANGULAR SENSOR Public/Granted day:2018-12-27
Information query
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