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Lead angle controller

A leading angle and controller technology, applied in the control system, torque ripple control, electronic commutation motor control, etc., can solve the problems of brushless DC motor efficiency and torque reduction, so as to improve driving stability, reduce noise and Vibration, anti-distortion effect

Active Publication Date: 2018-06-29
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the time point at which the line current flows in the stator is relatively delayed due to the influence of the line inductance of the motor compared to the time point at which the phase of the stator is switched
In particular, the larger the inductance, the higher the speed of the motor and the larger the delay angle of the phase current, which may lead to a decrease in the efficiency and torque of the BLDC motor

Method used

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Embodiment Construction

[0028] The following description is merely exemplary in nature, and is not intended to limit the present invention, application, or use. It should be understood that throughout the drawings, corresponding reference numerals indicate the same or corresponding parts and features.

[0029] figure 1 It is a block diagram schematically showing the lead angle controller in some embodiments of the present invention.

[0030] reference figure 1 The lead angle controller in some embodiments of the present invention may include: a position sensor 11 that detects the position of the rotor of a brushless direct current (BLDC) motor 10; a lead angle control unit 30 that determines the lead angle based on the detection signal from the position sensor 11 The phase current converter 50, based on the detection signal from the position sensor 11 and the lead angle control signal, outputs the stator for determining the brushless DC motor 10 The phase current conversion signal of the phase current st...

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Abstract

The present disclosure provides a lead angle controller including: a position sensor configured to detect a position of a rotor of a BLDC motor; a lead angle control unit configured to determine a lead angle based on a detection signal and to output time for compensation of the lead angle as a lead angle control signal; a phase current converter configured to output a phase current conversion signal based on the detection signal and the lead angle control signal, wherein the phase current conversion signal determines a phase current step of a stator of the BLDC motor; and a signal holder configured to, when one detection signal from the position sensor and the lead angle control signal is changed, hold the detection signal and the lead angle control signal and provide the detection signaland the lead angle control signal to the phase current converter at a predetermined time.

Description

Technical field [0001] The invention relates to a lead angle controller. Background technique [0002] The description in this section only provides background information related to the present invention, and may not constitute prior art. [0003] Generally, in a DC motor with an electronic rectifier unit, a brushless DC (BLDC) motor, which is a motor formed by replacing a commutator and brushes in mechanical contact with each other, has the advantages of low electromagnetic noise and mechanical noise and long life. With the improvement of device performance, the reduction of weight and thickness, the simplification of structure, the extension of life, and the development of components or materials for semiconductor technology, brushless DC motors have made considerable progress and are widely used In various fields, such as household appliances, information communication equipment, vehicles and medical equipment. [0004] Such a brushless DC motor usually includes a rotor as a pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/15H02P6/16H02P6/10
CPCH02P6/153H02P6/10H02P6/16H02P6/15H02P6/157H02P6/08
Inventor 李明硕
Owner HYUNDAI MOTOR CO LTD