Method for determining corrected rotational speed signal and electric motor device
A speed signal and motor technology, applied to devices using electric/magnetic methods, using electric/magnetic devices to transmit sensing components, measuring devices, etc., can solve problems such as hindering precise adjustment of motors
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0055] figure 1 The course of the rotational angle signal 01 output by the commutation sensor is shown, which shows the magnetic field angle as a function of time and is represented as a solid line. Correspondingly, the ideal rotational angle signal 02 is shown as a dashed line. In each revolution from -π to +π, the rotational angle signal 01 wipes out a complete cycle. A comparison between the ideal rotation angle signal 02 and the measured rotation angle signal 01 shows that the commutation sensor receives a small rotation angle error 03 (at figure 2 shown in ), which oscillates around the ideal rotational angle signal 02 similarly to a sinusoidal interference signal on the rotational angle signal 01 .
[0056] figure 2 The rotational angle error 03 is shown as a function of time as a magnetic field angle difference. Furthermore, raw rotational speed signal 04 is shown, which is obtained according to the invention by differentiating rotational angle signal 01 . It can...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com