JPH06134176A - Method for controlling washing machine and device therefor - Google Patents

Method for controlling washing machine and device therefor

Info

Publication number
JPH06134176A
JPH06134176A JP4291386A JP29138692A JPH06134176A JP H06134176 A JPH06134176 A JP H06134176A JP 4291386 A JP4291386 A JP 4291386A JP 29138692 A JP29138692 A JP 29138692A JP H06134176 A JPH06134176 A JP H06134176A
Authority
JP
Japan
Prior art keywords
washing
current
motor
rinsing
laundry
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4291386A
Other languages
Japanese (ja)
Inventor
Toru Ozawa
透 小澤
Junji Kogori
淳司 古郡
Kazuo Tawara
和雄 田原
Toshiyuki Yasujima
俊幸 安島
Hisamitsu Gomita
寿光 五味田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4291386A priority Critical patent/JPH06134176A/en
Publication of JPH06134176A publication Critical patent/JPH06134176A/en
Pending legal-status Critical Current

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  • Control Of Washing Machine And Dryer (AREA)

Abstract

PURPOSE:To reduce vibrations at the time of dehydration by comparing respective motor currents at the start of washing or rinsing, in the middle of washing or rinsing or at the end of washing or rinsing, detecting the degree of entangling or making eccentric laundry, and performing disentangling revolutions corresponding to the result. CONSTITUTION:A microcomputer 7 for controlling electrification to a DC brushless motor 2 to revolve and drive the stirring blades of a washing machine is provided with a current comparing means 13 composed of a current storage part 14 for storing the current value of a motor driving current, current waveform and the change of the current, and a comparison part 15 for comparing currents stored in the current storage part 14 with each other or comparing the stored current with a current detected by a current detection circuit 5. Then, the motor current at the start of washing or rinsing is compared with the motor current in the middle of washing or rinsing, the degree of entangling or making eccentric laundry is detected by an operation control part 16 corresponding to the compared result and, based on the detected result, the time of the disentangling stirring of laundry is controlled so as to be prolonged with inversion time limit shorter than the inversion time limit of washing or rinsing.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、モータにより撹拌翼を
回転駆動して洗濯を行う洗濯機の制御方法およびその装
置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine control method and apparatus for rotating a stirring blade by a motor for washing.

【0002】[0002]

【従来の技術】洗濯またはすすぎの最中に洗濯物が絡み
合ったり、片寄ったりすることで、脱水時に大きな振動
が出たり脱水起動が出来ない脱水起動不良が起こること
がある。 従来、この脱水時の振動の低減および脱水起
動不良の防止を図る目的で、洗濯およびすすぎの終了数
秒前から数分前の間に、洗濯またはすすぎの反転時限よ
りも短い反転時限で前記撹拌翼を回転して、洗濯物の絡
みや片寄りを防止する方法が、特開平4−20382で
提案されている。
2. Description of the Related Art During laundry washing or rinsing, when laundry is entangled or biased, a large vibration may occur during dehydration and a dehydration start failure may occur in which dehydration cannot be started. Conventionally, for the purpose of reducing the vibration at the time of this dehydration and preventing the start-up failure of the dehydration, the stirring blade is provided with a reversal time period shorter than the reversal time period of the washing or rinsing from several seconds to several minutes before the end of the washing and rinsing. Japanese Patent Laid-Open No. 4-20382 proposes a method of rotating the machine to prevent the laundry from being entangled or biased.

【0003】[0003]

【発明が解決しようとする課題】前記従来技術では、洗
濯およびすすぎの最中に洗濯物が絡みあったり片寄った
りしたことを検出せずに、洗濯およびすすぎよりも短い
反転時限で前記撹拌翼を回転する洗濯物ほぐし撹拌を、
ある定まった時間行うようにしている。このため、洗濯
物の絡み片寄りが全くなく、洗濯物の絡みや片寄りを防
止するための、前記洗濯物ほぐし撹拌が不用なときに
も、前記洗濯物ほぐし撹拌を行なっていた。このため結
果的にトータルの運転時間が長くなり、不用な電力を消
費するという不具合があった。また逆に、洗濯物の絡み
や片寄りの度合いがひどく、定められた時間の前記洗濯
物ほぐし撹拌では、洗濯物の絡みや片寄りをほぐすこと
が出来ない場合があり、脱水時の振動の低減や脱水起動
不良の防止が出来ない場合があるという不具合があっ
た。
SUMMARY OF THE INVENTION In the above-mentioned prior art, the agitator blades are operated at a reversal time shorter than that of washing and rinsing without detecting that the laundry is entangled or biased during washing and rinsing. Rotating laundry loosening agitation,
I try to do it for a fixed time. Therefore, there is no entanglement of the laundry, and the laundry is loosened and stirred even when the laundry loosening and stirring for preventing the laundry from being entangled or biased is unnecessary. As a result, there has been a problem that the total operation time becomes long and unnecessary electric power is consumed. On the other hand, the degree of entanglement or unevenness of the laundry is severe, and it may not be possible to loosen the entanglement or unevenness of the laundry by the laundry loosening agitation for a predetermined time, which may cause vibration during dehydration. There was a problem that reduction and prevention of dehydration startup failure could not be performed in some cases.

【0004】本発明の目的は、洗濯またはすすぎの初期
に前記モータに加わる負荷トルクと、洗濯途中またはす
すぎ途中、あるいは、洗濯またはすすぎの終了時に前記
モータに加わる負荷トルクとを比較して、洗濯物の絡み
や片寄り具合を検出するとともに、前記洗濯物の絡みや
片寄り具合に応じて、洗濯時またはすすぎ時よりも短い
反転時限からなる時限で前記撹拌翼を回転させ、洗濯物
の絡みや片寄りを防止する撹拌をする制御方法および制
御装置を提供することにある。
An object of the present invention is to compare the load torque applied to the motor at the beginning of washing or rinsing with the load torque applied to the motor during washing or rinsing, or at the end of washing or rinsing to compare the load torque. In addition to detecting the entanglement and unevenness of the laundry, depending on the entanglement and unevenness of the laundry, the stirring blade is rotated at a time period consisting of a reversal time period shorter than that at the time of washing or rinsing, and the laundry is entangled. An object of the present invention is to provide a control method and a control device for stirring that prevents unevenness and unevenness.

【0005】[0005]

【課題を解決するための手段】前記目的は、洗濯槽内の
撹拌翼を回転駆動するモータに加わる負荷トルク、すな
わち、前記モータに流れる電流を検出する電流検出手段
と、前記電流検出手段により検出した電流値あるいは電
流波形、または、電流の変化を記憶し比較する比較手段
を設け、洗濯時またはすすぎ時の初期に前記モータに加
わる負荷トルクと、洗濯途中またはすすぎ途中、あるい
は、洗濯またはすすぎの終了時に前記モータに加わる負
荷トルクとを比較して、洗濯物の絡みや片寄り具合を検
出するとともに、前記洗濯物の片寄り具合に応じて、洗
濯時またはすすぎ時よりも短い反転時限からなる時限で
前記撹拌翼を回転させ、洗濯物の絡みや片寄りを防止す
る撹拌をすることにより達成される。
The object is to detect a load torque applied to a motor for rotationally driving a stirring blade in a washing tub, that is, a current detecting means for detecting a current flowing through the motor, and the current detecting means. A comparison means for storing and comparing the changed current value or current waveform or the change in current is provided, and the load torque applied to the motor at the initial stage of washing or rinsing and the washing torque during washing or rinsing, or during washing or rinsing At the end, the load torque applied to the motor is compared to detect entanglement or unevenness of the laundry, and depending on the unevenness of the laundry, the reversal time is shorter than that at the time of washing or rinsing. This can be achieved by rotating the stirring blade for a limited time and stirring so as to prevent entanglement and unevenness of laundry.

【0006】[0006]

【作用】電流検出手段では、洗濯またはすすぎの初期に
洗濯物の絡みがない状態で、モータに加わる負荷トル
ク、すなわち前記モータに流れる電流を検出する。電流
比較手段では、前記電流検出手段が検出した電流値ある
いは電流波形、または、電流の変化を記憶する。さら
に、電流検出手段では洗濯途中またはすすぎ途中、ある
いは、洗濯またはすすぎの終了時に前記モータに流れる
電流を検出し、この検出電流値あるいは電流波形、また
は、電流の変化を、洗濯またはすすぎの初期のものと比
較する。洗濯物が絡み合ったり片寄ったりしたときに、
前記モータに流れる電流は、電流値あるいは電流波形、
または、電流の変化が、洗濯またはすすぎの初期と異な
ったパターンとなり、洗濯物の絡み具合や片寄り度合い
を知ることが出来る。
In the current detecting means, the load torque applied to the motor, that is, the current flowing through the motor is detected in a state where the laundry is not entangled at the beginning of washing or rinsing. The current comparison means stores the current value or current waveform detected by the current detection means, or the change in current. Further, the current detecting means detects the current flowing through the motor during washing or rinsing, or at the end of washing or rinsing, and detects the detected current value or current waveform or change in current at the initial stage of washing or rinsing. Compare with one. When the laundry is entangled or biased,
The current flowing through the motor is a current value or current waveform,
Alternatively, the change in the electric current has a pattern different from that in the initial stage of washing or rinsing, and the degree of entanglement and unevenness of the laundry can be known.

【0007】[0007]

【実施例】以下、本発明の実施例を図面に基づいて説明
する。
Embodiments of the present invention will be described below with reference to the drawings.

【0008】図1に本発明の一実施例の制御構成を示
す。1は、撹拌翼(図示せず)を回転駆動するDCブラ
シレスモータ2の駆動回路である。モータ駆動回路1に
は直流電圧Eが印加されており、モータ駆動回路1はマ
イコン7のモータ駆動信号でスイッチングされ、モータ
駆動信号にしたがったモータ駆動電流Iを出力し、モー
タ2を回転駆動する。DCブラシレスモータ2の位置を
位置検出回路6により検出し、モータ駆動信号をマイコ
ン7より出力する。3はモータ電流を検出する電流検出
手段5を構成する電流検出抵抗であり、モータ駆動時の
モータ駆動電流Iは電流検出抵抗3を流れ、電流検出抵
抗3の電圧降下により、電流検出回路4でモータ駆動電
流Iを検出し、その値を記憶するとともに比較を行う電
流比較手段を構成するマイコン7に取り込んでいる。
FIG. 1 shows a control configuration of an embodiment of the present invention. Reference numeral 1 is a drive circuit of a DC brushless motor 2 that rotationally drives a stirring blade (not shown). The DC voltage E is applied to the motor drive circuit 1, the motor drive circuit 1 is switched by the motor drive signal of the microcomputer 7, outputs the motor drive current I according to the motor drive signal, and rotationally drives the motor 2. . The position of the DC brushless motor 2 is detected by the position detection circuit 6, and a motor drive signal is output from the microcomputer 7. Reference numeral 3 is a current detection resistor which constitutes a current detection means 5 for detecting a motor current. The motor drive current I during motor driving flows through the current detection resistor 3 and the voltage drop of the current detection resistor 3 causes the current detection circuit 4 to operate. The motor drive current I is detected, and the value is stored in the microcomputer 7 which constitutes a current comparison means for comparing and storing the value.

【0009】図2の本発明の一実施例の制御ブロック図
に示すように、モータ2の位置信号から速度演算処理部
8によりモータの回転速度Nを計算し、マイコン7内部
の加速処理部9から出力されるモータ回転速度内部指令
値ΔN*と比較し、モータ回転速度Nとモータ回転速度
内部指令値ΔN*との回転速度偏差εNから速度制御処
理部8によりモータ回転速度Nがモータ回転速度内部指
令値ΔN*に一致するようなモータ駆動電流Iがモータ
2に流れるようにモータ駆動電流指令値I*を算出す
る。すなわち、モータ回転速度Nがモータ回転速度内部
指令ΔN*よりも小さい場合には、モータ駆動電流指令
値I*を大きくし、逆に、モータ回転速度Nがモータ回
転速度内部指令ΔN*よりも大きい場合には、モータ駆
動電流指令値I*を小さくする。このとき、モータ回転
速度内部指令ΔN*は、マイコン外部より入力されるモ
ータ回転速度外部指令N*をモータ回転加速時間に合わ
せて、加速処理部9より生成される。
As shown in the control block diagram of one embodiment of the present invention in FIG. 2, the speed calculation processing unit 8 calculates the rotation speed N of the motor from the position signal of the motor 2 and the acceleration processing unit 9 inside the microcomputer 7 is calculated. From the rotation speed deviation εN between the motor rotation speed N and the motor rotation speed internal command value ΔN *, and the motor rotation speed N is calculated by the speed control processing unit 8. The motor drive current command value I * is calculated so that the motor drive current I that matches the internal command value ΔN * flows through the motor 2. That is, when the motor rotation speed N is smaller than the motor rotation speed internal command ΔN *, the motor drive current command value I * is increased, and conversely, the motor rotation speed N is larger than the motor rotation speed internal command ΔN *. In this case, the motor drive current command value I * is reduced. At this time, the motor rotation speed internal command ΔN * is generated by the acceleration processing unit 9 in accordance with the motor rotation speed external command N * input from the outside of the microcomputer in accordance with the motor rotation acceleration time.

【0010】そして、モータ駆動電流指令値I*とモー
タ駆動電流検出手段5により検出したモータ駆動電流値
Iとを比較し、モータ駆動電流偏差εIを求める。この
モータ駆動電流偏差εIを基に、モータ駆動電流制御処
理部11で、モータ駆動電流値Iがモータ駆動電流指令
値I*に一致するように、電圧指令V*を求め、このV
*を基にして、PWM処理部12でPWMしたモータ駆
動信号をマイコン7から出力する。このマイコン7から
出力されたモータ駆動信号でモータ駆動回路1をスイッ
チングして、モータ2にモータ駆動電流指令値I*に一
致したモータ駆動電流Iを流し、モータ2を回転駆動す
る。
Then, the motor drive current command value I * is compared with the motor drive current value I detected by the motor drive current detecting means 5 to obtain a motor drive current deviation εI. Based on this motor drive current deviation εI, the motor drive current control processing unit 11 obtains a voltage command V * so that the motor drive current value I matches the motor drive current command value I *, and this V
Based on *, the microcomputer 7 outputs a motor drive signal PWM-processed by the PWM processing unit 12. The motor drive signal output from the microcomputer 7 is used to switch the motor drive circuit 1 so that the motor drive current I matching the motor drive current command value I * is passed to the motor 2 to rotationally drive the motor 2.

【0011】13は電流比較手段で、前記モータ駆動電
流Iの電流値、電流波形、電流の変化を記憶する電流記
憶部と、電流記憶部14で記憶した電流同士、または、
電流記憶部14で記憶した電流と、電流検出手段5で検
出した電流とを比較する比較部15とから構成される。
16は運転制御部で、電流比較手段13でのモータ駆動
電流の比較結果に基づいて、洗濯物の絡み具合や片寄り
具合を検出して、洗濯あるいはすすぎの反転時限よりも
短い反転時限での洗濯物ほぐし撹拌の実行を制御する。
Reference numeral 13 is a current comparison means, which is a current storage unit for storing the current value, current waveform, and change in current of the motor drive current I, and the currents stored in the current storage unit 14, or
The current storage unit 14 is composed of a comparison unit 15 that compares the current stored in the current storage unit 14 with the current detected by the current detection unit 5.
Reference numeral 16 denotes an operation control unit, which detects a entangled state or a deviated state of the laundry based on a comparison result of the motor drive currents in the current comparison unit 13, and in a reversal time period shorter than a reversal time period of washing or rinsing. Controls the execution of laundry loosening agitation.

【0012】ここで、洗濯時のモータ2の通断電パター
ンとモータ駆動電流検出手段5で検出されるモータ駆動
電流Iを図3に示す。ここで、モータ2は正回転、停
止、逆回転を繰り返している。まず、モータ2を予め設
定した回転方向(正方向)に回転駆動するため、マイコ
ン7からモータ駆動信号を出力し、モータ駆動回路1を
スイッチングし、モータ駆動電流Iを流し、モータ2を
回転駆動させる。予め設定した時間tonだけモータ2
を回転後、モータ2を停止する。すなわち、マイコン7
から出力しているモータ駆動信号をオフし、モータ駆動
電流Iを切る。その後、予め設定した時間toffだけ
モータ2を停止後、モータ2を逆方向に回転させる。そ
の後、tonだけモータ2を回転後、モータ駆動電流I
をオフし、モータ2を停止する。さらに、モータ2を予
め設定した時間toff停止する。このようにしてモー
タ2の回転運転を繰り返すことにより、前記撹拌翼を回
転して洗濯およびすすぎを行う。ここで、一般的にモー
タ2に流れるモータ駆動電流Iはモータ2の駆動トル
ク、すなわち、モータ2に加わる負荷トルクに比例して
いることが知られている。
Here, FIG. 3 shows the switching patterns of the motor 2 at the time of washing and the motor drive current I detected by the motor drive current detecting means 5. Here, the motor 2 repeats forward rotation, stop, and reverse rotation. First, in order to rotationally drive the motor 2 in a preset rotation direction (forward direction), a motor drive signal is output from the microcomputer 7, the motor drive circuit 1 is switched, a motor drive current I is supplied, and the motor 2 is rotationally driven. Let Motor 2 for a preset time ton
After rotating, the motor 2 is stopped. That is, the microcomputer 7
The motor drive signal output from is turned off and the motor drive current I is cut off. Then, after stopping the motor 2 for a preset time toff, the motor 2 is rotated in the reverse direction. After that, after rotating the motor 2 by ton, the motor drive current I
Is turned off and the motor 2 is stopped. Further, the motor 2 is stopped for a preset time toff. By repeating the rotation operation of the motor 2 in this manner, the stirring blade is rotated to perform washing and rinsing. Here, it is generally known that the motor drive current I flowing through the motor 2 is proportional to the drive torque of the motor 2, that is, the load torque applied to the motor 2.

【0013】図4に洗濯あるいはすすぎ初期のモータ2
を流れるモータ駆動電流Iを示す。洗濯途中またはすす
ぎ途中、あるいは洗濯またはすすぎの終了時に、洗濯物
の絡みが発生すると、前記撹拌翼の回転抵抗が大きくな
りモータ2に流れるモータ駆動電流Iが大きくなり、図
5に示すように洗濯物の絡み具合いによって電流値に違
いがでる。また、洗濯途中またはすすぎ途中、あるいは
洗濯またはすすぎの終了時に、洗濯物の片寄りが発生す
ると、前記撹拌翼の回転抵抗が変動したり、正、逆回転
で違ったものになる。この前記回転翼の回転の抵抗の変
動や、正、逆回転での違いが、モータ2に加わる負荷ト
ルクの変動や、正、逆回転での違いになり、モータ2に
流れるモータ駆動電流Iの変動や、正、逆回転での違い
となって、図6、図7に示すように洗濯物の片寄り具合
いによって電流に違いがでる。
FIG. 4 shows the motor 2 at the initial stage of washing or rinsing.
The motor drive current I flowing through When the laundry is entangled during washing or rinsing, or at the end of washing or rinsing, the rotation resistance of the stirring blade increases and the motor drive current I flowing to the motor 2 increases, so that the washing is performed as shown in FIG. The current value varies depending on how things are entangled. Further, when the laundry is biased during washing or rinsing, or at the end of washing or rinsing, the rotation resistance of the agitating blades may vary or may differ between forward and reverse rotations. The variation of the resistance of rotation of the rotary blade and the difference between the forward and reverse rotations are the variation of the load torque applied to the motor 2 and the difference between the forward and reverse rotations, and the motor drive current I flowing through the motor 2 is changed. As a result of fluctuation and difference between normal and reverse rotation, as shown in FIG. 6 and FIG. 7, the current differs depending on the deviation of the laundry.

【0014】このようにして、電流比較手段13におい
て洗濯またはすすぎの初期にモータ2に流れるモータ駆
動電流と、洗濯途中またはすすぎ途中、あるいは、洗濯
またはすすぎの終了時にモータ2に流れる電流とを比較
して、運転制御部16では洗濯物の絡みや片寄り具合を
検出する。さらに運転制御部16では、洗濯物の絡み具
合や片寄り具合の検出結果に基づいて、洗濯物の片寄り
絡みが大きいときには、洗濯あるいはすすぎの反転時限
よりも短い反転時限での洗濯物ほぐし撹拌を長く、逆に
洗濯物の片寄り絡みが小さいときには、洗濯あるいはす
すぎの反転時限よりも短い反転時限での洗濯物ほぐし撹
拌を短くする制御を行う。
In this way, the current comparing means 13 compares the motor drive current flowing through the motor 2 at the beginning of washing or rinsing with the current flowing through the motor 2 during washing or rinsing or at the end of washing or rinsing. Then, the operation control unit 16 detects the entanglement and unevenness of the laundry. Further, in the operation control unit 16, on the basis of the detection result of the degree of entanglement of the laundry and the degree of eccentricity of the laundry, when the entanglement of the laundry is large, the laundry loosening agitation is performed in the reversal time period shorter than the reversal time period of the washing or rinsing. On the contrary, when the entanglement of the laundry is small, the control for shortening the laundry loosening agitation at the reversal time period shorter than the reversal time period of the washing or rinsing is performed.

【0015】[0015]

【発明の効果】前記のように、洗濯を行うようにした洗
濯機において、洗濯またはすすぎの初期に前記モータに
流れる電流と、洗濯途中またはすすぎ途中、あるいは、
洗濯またはすすぎの終了時に前記モータに流れる電流と
を比較して、洗濯物の絡みや片寄り具合を検出すること
が出来、前記洗濯物の絡み具合や片寄り具合に応じて、
洗濯時またはすすぎ時よりも短い反転時限からなる時限
で前記撹拌翼を回転させる洗濯物ほぐし撹拌を行うの
で、洗濯物の絡みや片寄り具合いに合った必要最低限の
洗濯物ほぐし撹拌を行うことが出来、運転時間が長くな
り、不用な電力を消費するという不具合がなく、脱水時
の振動の低減や脱水起動不良の防止が確実に出来るとい
う効果がある。
As described above, in the washing machine for washing, the electric current flowing through the motor at the initial stage of washing or rinsing and the washing or rinsing, or
By comparing with the current flowing through the motor at the end of washing or rinsing, it is possible to detect the entanglement of the laundry and the degree of deviation, depending on the degree of the entanglement and deviation of the laundry,
Since the laundry is loosened and agitated by rotating the stirring blade for a time period consisting of a reversal time period shorter than when washing or rinsing, the minimum necessary laundry loosening agitation that is suitable for the entanglement of the laundry and the unevenness of the laundry should be performed. There is an effect that it is possible to reduce the vibration at the time of dehydration and to prevent defective dehydration start-up reliably without the problem that the operation time becomes long, the power consumption becomes unnecessary, and the power consumption becomes unnecessary.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例を示す制御構成図である。FIG. 1 is a control configuration diagram showing an embodiment of the present invention.

【図2】本発明の一実施例の制御ブロック図である。FIG. 2 is a control block diagram of an embodiment of the present invention.

【図3】モータの通断電パターンとモータ駆動電流の関
係を示す図である。
FIG. 3 is a diagram showing a relationship between a motor connection / disconnection pattern and a motor drive current.

【図4】洗濯およびすすぎ初期のモータ駆動電流を示す
図である。
FIG. 4 is a diagram showing a motor drive current at the initial stage of washing and rinsing.

【図5】洗濯物の絡みが発生したときのモータ駆動電流
を示す図である。
FIG. 5 is a diagram showing a motor drive current when entanglement of laundry occurs.

【図6】洗濯物の片寄りが発生したときのモータ駆動電
流を示す図である。
FIG. 6 is a diagram showing a motor drive current when an unevenness of laundry occurs.

【図7】洗濯物の片寄りが発生したときのモータ駆動電
流を示す図である。
FIG. 7 is a diagram showing a motor drive current when a deviation of laundry occurs.

【符号の説明】[Explanation of symbols]

1…モータ駆動回路、2…DCブラシレスモータ、3…
電流検出抵抗、4…電流検出回路、5…電流検出手段、
7…マイコン、13…電流比較手段。
1 ... Motor drive circuit, 2 ... DC brushless motor, 3 ...
Current detection resistor, 4 ... current detection circuit, 5 ... current detection means,
7 ... Microcomputer, 13 ... Current comparison means.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 安島 俊幸 茨城県日立市久慈町4026番地 株式会社日 立製作所日立研究所内 (72)発明者 五味田 寿光 茨城県日立市東多賀町1丁目1番1号 株 式会社日立製作所多賀工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshiyuki Yasushima 4026 Kujimachi, Hitachi City, Ibaraki Prefecture Hitachi Research Laboratory, Hitachi, Ltd. (72) Inventor Hisamitsu Gomida 1-1-1, Higashitagacho, Hitachi City, Ibaraki Prefecture Hitachi, Ltd. Taga Factory

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】洗濯槽内の撹拌翼を回転駆動するモータを
備え、前記モータの回転によって、前記撹拌翼により前
記洗濯槽内に水流を得て、洗濯を行うようにした洗濯機
において、洗濯またはすすぎの初期に前記モータに加わ
る負荷トルクと、洗濯途中またはすすぎ途中、あるい
は、洗濯またはすすぎの終了時に前記モータに加わる負
荷トルクとを比較して、洗濯物の絡みや片寄り具合を検
出するとともに、前記洗濯物の絡み具合や片寄り具合に
応じて、洗濯時またはすすぎ時よりも短い反転時限から
なる時限で前記撹拌翼を回転させ、洗濯物の絡みや片寄
りを防止する撹拌を行うことを特徴とする洗濯機の制御
方法。
1. A washing machine, comprising a motor for rotationally driving a stirring blade in a washing tub, wherein the rotation of the motor causes a water flow in the washing tub by the stirring blade to perform washing. Alternatively, the load torque applied to the motor at the initial stage of rinsing is compared with the load torque applied to the motor during washing or rinsing, or at the end of washing or rinsing to detect entanglement or deviation of laundry. At the same time, depending on the degree of entanglement or unevenness of the laundry, the stirring blade is rotated at a time period consisting of a reversal time period shorter than that at the time of washing or rinsing, and stirring is performed to prevent entanglement or deviation of the laundry A method for controlling a washing machine, comprising:
【請求項2】洗濯槽内の撹拌翼を回転駆動するモータを
備え、前記モータの回転によって、前記撹拌翼により前
記洗濯槽内に水流を得て、洗濯を行うようにした洗濯機
において、洗濯またはすすぎの初期に前記モータに流れ
る電流と、洗濯途中またはすすぎ途中、あるいは、洗濯
またはすすぎの終了時に前記モータに流れる電流とを比
較して、洗濯物の絡みや片寄り具合を検出するととも
に、前記洗濯物の絡み具合や片寄り具合に応じて、洗濯
時またはすすぎ時よりも短い反転時限からなる時限で前
記撹拌翼を回転させ、洗濯物の絡みや片寄りを防止する
撹拌を行うことを特徴とする洗濯機の制御方法。
2. A washing machine comprising a motor for rotating and driving a stirring blade in a washing tub, wherein the rotation of the motor causes a water flow into the washing tub by the stirring blade to perform washing. Or the current flowing through the motor at the beginning of rinsing, and during washing or rinsing, or by comparing the current flowing through the motor at the end of washing or rinsing, while detecting the entanglement and unevenness of the laundry, Depending on the degree of entanglement or deviation of the laundry, it is possible to rotate the stirring blade at a time period consisting of a reversal time period shorter than that at the time of washing or rinsing to perform stirring to prevent entanglement or deviation of the laundry. Characteristic washing machine control method.
【請求項3】洗濯槽内の撹拌翼を回転駆動するモータを
備え、前記モータの回転によって、前記撹拌翼により前
記洗濯槽内に水流を得て、洗濯を行うようにした洗濯機
において、洗濯またはすすぎの初期および、洗濯途中ま
たはすすぎ途中、あるいは、洗濯またはすすぎの終了時
に前記モータに加わる負荷トルクを前記モータの電流で
検出するための電流検出手段と、前記電流検出手段によ
り検出した電流値あるいは電流波形、または、電流の変
化を記憶し比較する電流比較手段を設けたことを特徴と
する洗濯機の制御装置。
3. A washing machine, comprising a motor for rotating a stirring blade in a washing tub, wherein the rotation of the motor causes a water flow in the washing tub by the stirring blade to perform washing. In the initial stage of rinsing and during washing or rinsing, or at the end of washing or rinsing, current detection means for detecting the load torque applied to the motor by the current of the motor, and the current value detected by the current detection means Alternatively, the washing machine control device is provided with a current comparison means for storing and comparing a current waveform or a change in current.
JP4291386A 1992-10-29 1992-10-29 Method for controlling washing machine and device therefor Pending JPH06134176A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4291386A JPH06134176A (en) 1992-10-29 1992-10-29 Method for controlling washing machine and device therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4291386A JPH06134176A (en) 1992-10-29 1992-10-29 Method for controlling washing machine and device therefor

Publications (1)

Publication Number Publication Date
JPH06134176A true JPH06134176A (en) 1994-05-17

Family

ID=17768247

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4291386A Pending JPH06134176A (en) 1992-10-29 1992-10-29 Method for controlling washing machine and device therefor

Country Status (1)

Country Link
JP (1) JPH06134176A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108823899A (en) * 2018-08-02 2018-11-16 青岛海尔洗衣机有限公司 A kind of washing machine and its control method
CN112011949A (en) * 2019-05-28 2020-12-01 青岛海尔洗衣机有限公司 Control method for washing machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108823899A (en) * 2018-08-02 2018-11-16 青岛海尔洗衣机有限公司 A kind of washing machine and its control method
CN112011949A (en) * 2019-05-28 2020-12-01 青岛海尔洗衣机有限公司 Control method for washing machine
CN112011949B (en) * 2019-05-28 2023-08-11 青岛海尔洗衣机有限公司 Control method for washing machine

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