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Method for decelerating vacuum cleaner motor

A vacuum cleaner and motor controller technology, which is applied in the direction of single motor speed/torque control, generator control, motor generator control, etc., can solve the problem of long deceleration time, increase the use time, improve user experience, and shorten deceleration the effect of time

Active Publication Date: 2021-02-09
WUXI NEWSTART CONTROLS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the deceleration time is shorter than the first method, the deceleration time is still longer

Method used

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  • Method for decelerating vacuum cleaner motor
  • Method for decelerating vacuum cleaner motor
  • Method for decelerating vacuum cleaner motor

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Experimental program
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Effect test

Embodiment Construction

[0022] The present invention will be described in detail in conjunction with accompanying drawing now. This figure is a simplified schematic diagram only illustrating the basic structure of the present invention in a schematic manner, so it only shows the components relevant to the present invention.

[0023] Such as figure 1 Shown is a schematic diagram of the inverter part of a vacuum cleaner motor controller of the present invention, including a three-phase permanent magnet synchronous motor, a power supply battery and a motor controller, and the single-chip microcomputer on the motor controller controls 6 switching tubes to switch regularly. The motor runs. The "bus voltage" and "bus current" of the motor controller are equal to the voltage and current of the battery.

[0024] Such as figure 2 Shown is the vector control algorithm when the motor is running normally, and this algorithm is common. The input to the algorithm is the target torque current i d and the targ...

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Abstract

The invention provides a method for decelerating the vacuum cleaner motor. When the machine needs to be stopped and decelerated, the working switch of the vacuum cleaner is released, and the single-chip microcomputer receives the deceleration signal and enters the deceleration mode; at this time, the single-chip microcomputer judges whether the motor speed is zero. If not, The single-chip microcomputer controls the motor controller to output a negative torque to decelerate the motor, that is, the target torque current i q is negative when i q When it is negative, the three-phase permanent magnet synchronous motor works in the power generation state. At this time, the bus voltage rises, and when the bus voltage is higher than the battery voltage, the battery is charged; if the motor speed is zero, the vacuum cleaner stops working. This method can greatly shorten the deceleration time, that is, shorten the duration of noise, and improve user experience. At the same time, the kinetic energy of the motor during deceleration can be converted into electrical energy to charge the battery, thereby increasing the use time of the vacuum cleaner.

Description

technical field [0001] The invention relates to the technical field of vacuum cleaner motor control, in particular to a method for decelerating a vacuum cleaner motor. Background technique [0002] At present, more and more three-phase permanent magnet synchronous motors are used in vacuum cleaners. At present, the motor deceleration method of vacuum cleaners is sliding free deceleration. Due to the long deceleration time, the noise will continue until the motor speed is 0, and the user will hear a long time Noise, bad experience. [0003] In the prior art, when it is necessary to stop and decelerate, there are generally two common deceleration methods: the first method is to directly turn off the switch tube, the software stops controlling the motor, and the motor decelerates naturally. When this method decelerates, there is no current in the motor, and the kinetic energy of the motor is completely consumed by frictional resistance, so this method decelerates slowly. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/14H02P21/22H02P27/08H02P25/024H02P6/08H02J7/32
CPCH02J7/32H02P6/08
Inventor 李潮州倪瑞
Owner WUXI NEWSTART CONTROLS TECH CO LTD
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