KR950006093A

KR950006093A - Motor drive control method of washing machine

Info

Publication number: KR950006093A
Application number: KR1019930017150A
Authority: KR
Inventors: 장도식
Original assignee: 김광호; 삼성전자 주식회사
Priority date: 1993-08-31
Filing date: 1993-08-31
Publication date: 1995-03-20

Abstract

본 발명은 세탁기의 탈수동작 제어방법에 관한 것으로써, 탈수행정의 간헐탈수동작시의 모터의 회전수를 토대로 제어폭시간(Tx)를 설정하는 제1스텝과, 상기 제1스텝에서 설정된 제어폭시간(Tx)에 따라 회전하는 모터의 회전수를 거출하여 기준회전수와 비교하는 제2스텝과, 상기 제2스텝에서의 비교결과에 따라 제어폭시간(Tx)이 “0” 또는 한계제어폭시간(To)인가 판별하여 상기 제어폭시간(Tx)을 변경하는 제3스텝과, 상기 제3스텝에서 변경된 제어폭시간(Tx)에 따라 마이크로컴퓨터의 제어신호에 의해 모터를 구동하는 제4스텝으로 이루어져 있는 것을 특징으로 하며, 세탁기의 탈수동작시 전원전압이 높거나 탈수량이 적을경우에 발생하는 불필요한 소비전력 절감 및 소음을 줄일 수 있는 뛰어난 효과가 있다.The present invention relates to a method for controlling the dehydration operation of a washing machine, comprising: a first step of setting a control width time (Tx) based on a rotation speed of a motor during an intermittent dewatering operation of a dehydration stroke; The control step time Tx is "0" or the limit control width depending on the second step of removing the rotation speed of the rotating motor according to the time Tx and comparing it with the reference rotation speed, and the comparison result in the second step. A third step of changing the control width time Tx by determining whether it is time To, and a fourth step of driving the motor by a control signal of the microcomputer according to the control width time Tx changed in the third step It is characterized in that consisting of, the dehydration operation of the washing machine has an excellent effect of reducing unnecessary power consumption and noise generated when the power supply voltage is high or the amount of dehydration is small.

Description

Motor drive control method of washing machine

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 이용되는 세탁기의 정단면도,1 is a front sectional view of a washing machine used in the present invention,

제2도는 본 발명에 이용되는 세탁기 블록도,2 is a washing machine block diagram used in the present invention,

제3도는 본 발명의 세탁기의 탈수시 모터구동제어방법을 나타내는 순서도,Figure 3 is a flow chart showing a motor drive control method when dewatering the washing machine of the present invention,

제4도는 본 발명의 탈수시 모터구동제어 예시도,4 is a view illustrating a motor drive control during dehydration of the present invention;

제5도는 본 발명에 적용되는 파형도로써, (a)는 AC인가 전압파형도, (b)는 파형발생수단에서 발생되는 12Hz 펄스파형도, (c)는 모터구동수단의 턴·온 제어파형도, (d)는 본 발명의 모터인가 전류 파형도.5 is a waveform diagram applied to the present invention, (a) is a voltage waveform applied by AC, (b) is a 12 Hz pulse waveform generated by the waveform generating means, (c) is a turn-on control waveform of the motor driving means Fig. (D) is a motor waveform diagram of the present invention.

Claims

In the control method of the washing machine, the first step of setting the control width time (Tx) based on the rotation speed of the motor during the intermittent dewatering operation of the dehydration stroke, and the rotation according to the control width time (Tx) set in the first step The first step of detecting the rotational speed of the motor to be compared with the reference rotational speed and the rotational speed of the motor rotating according to the control width time Tx according to the comparison result in the second step, A third step of changing the control width time Tx by determining whether the control width time Tx is “0” or the limit control width time To according to the second step to be compared and the comparison result in the second step. And a fourth step of driving the motor according to the control signal of the microcomputer in accordance with the control width time Tx changed in the third step.

The motor drive control method of a washing machine according to claim 1, wherein the control width time (Tx) set in said first step is set in accordance with the rotation speed which is rotated by inertia when the motor is off.

2. The control width time Tx according to claim 1, wherein when the detected rotation speed is greater than the reference speed in the state where the control width time Tx is greater than " 0 " and less than the limit control width time To in the third step, the control width time Tx is set. The washing machine characterized by increasing the fine control time (T) and reducing the control width time (Tx) by the fine control time (T) when the detection speed is smaller than the reference speed, thereby repeating the operation below the fourth step. Motor drive control method.

The method of claim 3, wherein the fine control time (T) is preset in a microcomputer.

※ Note: The disclosure is based on the initial application.