Check patentability & draft patents in minutes with Patsnap Eureka AI!

Calibration system and calibration method for position sensor of motor rotor

A technology of rotor position and motor rotor, which is applied in the direction of electronic commutator, control system, electronic commutation motor control, etc., and can solve the problems that cannot meet the requirements of mass production.

Active Publication Date: 2009-04-22
CHERY AUTOMOBILE CO LTD
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently commonly used calibration methods cannot meet the needs of mass production

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Calibration system and calibration method for position sensor of motor rotor
  • Calibration system and calibration method for position sensor of motor rotor
  • Calibration system and calibration method for position sensor of motor rotor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment one, such as figure 2 Shown: a calibration system for a motor rotor position sensor, including a calibrated rotor position sensor, a controller 14 and a power supply 16;

[0024] The calibrated rotor position sensor is installed on the stator 3 of the motor 13 of the power assembly composed of the engine 11 and the motor 13, and has an output port for outputting the analog signal of the rotor position information; the engine 11 and the motor 13 are connected through the shaft 12 connections make up the powertrain of a hybrid vehicle.

[0025] The controller 14 includes a DSP for processing the position signal output by the calibrated rotor position sensor, the DSP is TMS320F2802, and its analog signal input port is connected to the output of the analog signal of the calibrated rotor position sensor The A / D converter of the analog input port of the DSP converts the analog signal of the sensor into a digital signal. Inverter Invert is also included in the co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention fully discloses a motor rotor position sensor calibration system and a calibration method thereof. Based on the existing calibration system, the system adopts zero-crossing detection equipment to detect the zero-crossing point of the counter electromotive force of a motor, and produces a DSP triggering signal, so that the A / D port of a DSP can sample and decode the rotor position at the moment, and the position is calibrated as the zero point. In the proposal, since the zero-crossing detection equipment is added based on the prior art, the equipment can output a triggering signal when the motor counter electromotive force is zero, so as to trigger the DSP to sample the sensor signal and indicate the position is a rotor zero-crossing point. The system is simple and effective, easy to implement, and can calibrate individual rotor position sensor in large scale. By adopting the method, individual calibration of rotor position sensors can be easily completed within the DSP.

Description

technical field [0001] The present invention relates to a calibration system and a calibration method of a sensor, in particular to a calibration system and a calibration method of a rotor position sensor of a rotary AC motor, especially a permanent magnet synchronous AC motor, which is used in a hybrid electric vehicle. Background technique [0002] Permanent magnet synchronous motors are widely used in fields such as electric vehicles, hybrid electric vehicles, CNC machine tools, and textiles due to their advantages such as high power density, high efficiency, and low rotor loss. Especially for ISG motors of hybrid vehicles. In order to obtain good control performance, the control system must detect the motor rotor position and speed signals. [0003] At present, for the detection of motor speed and magnetic pole position, sensors such as photoelectric encoders or resolvers are mostly used. However, due to the contradiction between performance and cost of such sensors, th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02P6/16H02P6/182
Inventor 罗晓
Owner CHERY AUTOMOBILE CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com