Resolver system big and small wave correction method and device, resolver system and storage medium
By constructing correction signals in the rotary transformation system or performing frequency conversion processing to eliminate error signals, the problem of large and small waves caused by capacitive coupling is solved, and the accuracy of the output signal of the rotary transformation system is improved.
CN119984365APending Publication Date: 2025-05-13FORTIOR TECHNOLOGY (SHENZHEN) CO LTD
View PDF 0 Cites 0 Cited by
Patent Information
- Application Number
- CN202510094930.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-05-13
AI Technical Summary
Technical Problem
In the rotary transformation system, the differential output signal caused by capacitive coupling occurs periodic wave phenomenon, which affects the accuracy of the output signal.
Method used
By acquiring the differential input signal, a correction signal is constructed using the correction unit to eliminate the error signal, or a frequency conversion process of the differential input signal and filtering the error signal in the zero frequency domain, thereby realizing the cancellation of the error signal.
Benefits of technology
The error during signal transmission in the rotary transformation system is reduced, and the output accuracy of the motor shaft angular position and rotation speed is improved.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN119984365A_ABST
Abstract
The invention discloses a resolver system big and small wave correction method and device, a resolver system and a storage medium, and relates to the technical field of signal processing, the resolver system big and small wave correction method comprises the steps that a differential input signal is acquired based on an excitation signal of a resolver and rotation of the resolver, and the differential input signal comprises an error signal; inputting the differential input signal into a rotary digital converter, constructing a correction signal through a correction unit, and eliminating an error signal based on the correction signal to obtain a rotary transformer output signal; or, performing frequency conversion processing on the differential input signal through the correction unit to obtain a frequency conversion input signal, filtering the error signal in the frequency conversion input signal at the zero frequency domain through the correction unit to obtain the rotary transformer output signal. The large and small wave phenomenon in the rotary transformer system can be eliminated, and the error of the output signal of the rotary transformer system is reduced.
Need to check novelty before this filing date? Find Prior Art