JP2674851B2 - Washing machine control method - Google Patents
Washing machine control methodInfo
- Publication number
- JP2674851B2 JP2674851B2 JP2004091A JP409190A JP2674851B2 JP 2674851 B2 JP2674851 B2 JP 2674851B2 JP 2004091 A JP2004091 A JP 2004091A JP 409190 A JP409190 A JP 409190A JP 2674851 B2 JP2674851 B2 JP 2674851B2
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- Japan
- Prior art keywords
- washing
- time
- water
- detergent
- degree
- Prior art date
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Description
【発明の詳細な説明】 （イ）産業上の利用分野 この発明は、主に一般家庭で使用される洗濯機の制御
方法に関する。TECHNICAL FIELD The present invention relates to a method for controlling a washing machine mainly used in general households.
（ロ）従来の技術 従来の洗濯機においては洗濯物の量（負荷量）を検出
して給水量や洗剤の投入量を設定するようにしている。(B) Conventional Technology In a conventional washing machine, the amount of laundry (load amount) is detected to set the water supply amount and the detergent input amount.
（ハ）発明が解決しようとする課題 従って、従来の洗濯機においては、次のような解決す
べき課題がある。(C) Problems to be Solved by the Invention Therefore, the conventional washing machine has the following problems to be solved.
1.洗剤や水は、洗濯物の量に対して投入されていたの
で、少量負荷でも汚れのひどい場合は、洗剤量が不足
し、再汚染が懸念される。一方、逆の条件では洗剤が過
剰となり、すすぎ性能にも悪影響を与える。1. Detergent and water were added to the amount of laundry, so even if a small amount of load is applied, the amount of detergent is insufficient and there is concern about recontamination. On the other hand, under the opposite conditions, the detergent becomes excessive and the rinsing performance is adversely affected.
2.洗濯時間が定められているので、必ずしも適切な時に
洗濯が終了しない。2. Since the washing time is set, the washing does not always end at the appropriate time.
3.汚れ量に対して洗剤が過剰に投入されると、泡が立ち
過ぎ、その泡がクッションとなり洗浄性能が著しく低下
する。3. If the detergent is added excessively with respect to the amount of dirt, the foam becomes excessively foamed, and the foam becomes a cushion, which significantly deteriorates the cleaning performance.
この発明はこのような事情を考慮してなされたもの
で、洗濯液の汚濁度およびその変化率に対応して洗剤や
洗濯水の供給量および洗濯時間を制御することにより、
適切な洗濯を行うことが可能な制御方法を提供するもの
である。The present invention has been made in consideration of such circumstances, and by controlling the supply amount of the detergent and the washing water and the washing time in accordance with the contamination degree of the washing liquid and its change rate,
It is intended to provide a control method capable of performing appropriate washing.
（ニ）課題を解決するための手段 この発明は、水槽と、水槽内に回転可能に設けられ、
洗剤物を収容する洗濯槽と、給水装置と、洗剤供給装置
と、洗濯液の汚濁度を検出する汚濁度検出センサーとを
備え、前記濁度検出センサーにて検出された汚濁度に基
づいて給水装置，洗剤供給装置を選択して駆動させて予
め設定された複数の洗濯動作の内の選定された１つの洗
濯動作を行う洗濯機の制御方法において、洗濯物を洗濯
槽内に収容し、洗濯水と洗剤とを供給して一定時間だけ
洗濯動作を行った時点の洗濯液の汚濁度Ｄを検出すると
共にその時点における汚濁度の時間的変化率ｆを演算
し、検出された汚濁度Ｄと演算された時間的変化率ｆに
基づいて、前記一定時間後予め設定された、設定値α，
βに対して、（ａ）Ｄ＞βのときには、洗剤と洗濯水を
補給してｆがさらに低下するまで洗濯を続ける第１の洗
濯動作、（ｂ）ｆ≦αでＤ≦βのときには、洗濯を終了
する第２の洗濯動作、（ｃ）ｆ＞αでＤ≦βのときに
は、洗剤と洗濯水を補給せずにさらに他の一定時間だけ
洗濯動作を行い、該他の一定時間だけ洗濯動作を行った
時点の洗濯液の汚濁度Ｄを検出すると共にその時点にお
ける汚濁度の時間的変化率ｆを演算し、検出された汚濁
度Ｄと演算された時間的変化率ｆに基づいて、上記
（ａ）又は（ｂ）を再度実行する第３の洗濯動作、の内
の選定された１つの洗濯動作にて制御することを特徴と
する洗濯機の制御方法である。(D) Means for Solving the Problems The present invention is directed to a water tank and rotatably provided in the water tank.
A washing tub accommodating a detergent article, a water supply device, a detergent supply device, and a contamination degree detection sensor for detecting the contamination degree of the washing liquid are provided, and water is supplied based on the contamination degree detected by the turbidity detection sensor. In a method for controlling a washing machine, which selects and drives a washing machine and a detergent supply apparatus to perform one selected washing operation among a plurality of preset washing operations, a laundry is stored in a washing tub and washed. The contamination degree D of the washing liquid at the time when the washing operation is performed for a certain time by supplying water and detergent is detected, and the temporal change rate f of the contamination degree at that time is calculated to obtain the detected contamination degree D and Based on the calculated rate of temporal change f, a preset value α, which has been preset after the certain period of time,
In contrast to β, (a) when D> β, the first washing operation in which detergent and washing water are replenished and washing is continued until f further decreases, and (b) when f ≦ α and D ≦ β, The second washing operation for ending the washing, (c) when f> α and D ≦ β, the washing operation is performed for another fixed time without replenishing the detergent and the washing water, and the washing operation is performed for the other fixed time. Detecting the degree of contamination D of the washing liquid at the time of performing the operation and calculating the temporal change rate f of the degree of pollution at that time, based on the detected contamination degree D and the calculated temporal change rate f, A method for controlling a washing machine is characterized in that the washing machine is controlled by a selected one washing operation of the third washing operations of re-executing the above (a) or (b).
上記汚濁度検出センサーには、たとえば、赤外発光ダ
イオードとフォトトランジスタとを組合せて洗濯液を透
過する光量によってその汚濁度を検出するものを使用し
てもよい。あるいは、光−散乱技術を用いて洗濯液中の
エマルジョン（emulsion）の生成状態を検出するセンサ
ーを使用してもよい。As the pollution degree detecting sensor, for example, an infrared light emitting diode and a phototransistor may be combined to detect the pollution degree by the amount of light passing through the washing liquid. Alternatively, a light-scattering technique may be used to detect the state of emulsion formation in the wash liquor.
（ホ）作用 一定時間だけ洗濯動作を行った時点の洗濯液の汚濁度
Ｄが設定値βに対して大きい場合には、洗濯物の汚れが
ひどいと判断して洗剤と洗濯水とをさらに補給し、汚濁
度の時間的変化率ｆがさらに低下するまで洗濯を続け
る。また、一定時間だけ洗濯動作を行った時点の洗濯液
の汚濁度Ｄが設定値βに対して小さく、しかもその時点
における汚濁度の時間的変化率ｆが設定値αに対して小
さい場合には、汚れ量が軽く、洗濯をし続けてもそれ以
上の効果がないものとみなして洗濯を終了する。さら
に、一定時間だけ洗濯動作を行った時点の洗濯液の汚濁
度Ｄが設定値βに対して小さくても、その時点における
汚濁度の時間的変化率ｆが設定値αに対して大きい場合
には、洗濯水がそれほど汚れておらず、洗剤および洗濯
水を補給しなくても、さらに洗濯をし続けることにより
その効果があるものとみなして、洗剤と洗濯水を補給せ
ずにさらに他の一定時間だけ洗濯動作を行い、該他の一
定時間だけ洗濯動作を行った時点の洗濯液の汚濁度Ｄを
検出すると共にその時点における汚濁度の時間的変化率
ｆを演算し、検出された汚濁度Ｄと演算された時間的変
化率ｆに基づいて、他の一定時間だけ洗濯動作を行った
時点の洗濯液の汚濁度Ｄが設定値βに対して大きい場合
には、洗濯物の汚れがひどいと判断して洗剤と洗濯水と
をさらに補給し、汚濁度の時間的変化率ｆがさらに低下
するまで洗濯を続ける処理、および他の一定時間だけ洗
濯動作を行った時点の洗濯液の汚濁度Ｄが設定値βに対
して小さく、しかもその時点における汚濁度の時間的変
化率ｆが設定値αに対して小さい場合には、汚れ量が軽
く、洗濯をし続けてもそれ以上の効果がないものとみな
して洗濯を終了する処理のいずれかの処理を行う。この
ように制御することにより、洗剤および洗濯水が適量に
供給され、適切な時間で洗濯が行われることになる。(E) Action When the degree of contamination D of the washing liquid at the time of performing the washing operation for a certain period of time is larger than the set value β, it is determined that the stain on the laundry is severe and the detergent and the washing water are replenished. Then, the washing is continued until the temporal change rate f of the pollution degree further decreases. When the contamination D of the washing liquid at the time of performing the washing operation for a certain period of time is smaller than the set value β, and the temporal change rate f of the contamination degree at that time is smaller than the set value α, Finish the laundry assuming that the amount of dirt is light and there is no further effect even if the laundry is continued. Further, even if the contamination D of the washing liquid at the time of performing the washing operation for a certain period of time is smaller than the set value β, if the temporal change rate f of the contamination at that time is larger than the set value α Considers that the washing water is not so dirty and that the effect can be obtained by continuing the washing even if the detergent and the washing water are not replenished. Washing operation is performed for a certain period of time, and the contamination degree D of the washing liquid at the time when the washing operation is performed for another certain period of time is detected, and the temporal change rate f of the contamination degree at that time is calculated to detect the detected contamination. Based on the degree of change D and the temporal change rate f calculated, if the degree of contamination D of the washing liquid at the time when the washing operation is performed for another fixed time is larger than the set value β, the stain on the laundry is contaminated. I judged it to be terrible and added more detergent and washing water. The washing liquid continues to be washed until the time-dependent rate of change f of the pollution level is further reduced, or when the washing operation is performed for another fixed time, the pollution level D of the washing liquid is smaller than the set value β, and at that time If the time-dependent change rate f of the pollution degree is smaller than the set value α, it is considered that the amount of dirt is light, and it is considered that there is no further effect even if the washing is continued, and the washing is ended. Perform processing. By controlling in this way, the detergent and the washing water are supplied in appropriate amounts, and the laundry is washed at an appropriate time.
（ヘ）実施例 以下、図面に示す実施例に基づいてこの発明を詳述す
る。これによってこの発明が限定されるものではない。(F) Embodiment Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. This does not limit the present invention.
第１図はこの発明の一実施例を示すドラム式洗濯機の
構成説明図、第２図は制御部を示すブロック図である。
第１図において、洗濯水やすすぎ水を収容する水槽３
は、外装箱体10の上面より図示しないバネ等によって懸
吊され、洗濯時に発生する振動が吸収されるようになっ
ている。また、この水槽３の側面には衣類等の洗濯物を
出し入れする水槽開口部９が形成されている。水槽開口
部９と同一方向の面に相当する外装箱体10の側面には、
衣類投入扉11が開閉可能に設けられ、この衣類投入扉11
は水槽開口部を気密的に閉じることができる。また、水
槽３の底面部には排水口６、汚濁度検出センサー15が設
けられており、この排水口６には排水弁７を備えた排水
ホース19が接続されている。なお、汚濁度検出センサー
15は赤外発光ダイオードとフォトトランジスタとを備
え、洗濯液の光の透過量によってその汚濁度を検出する
ように構成されている。一方、水槽３の上面部には、洗
濯用又はすすぎ用の水を給水電磁弁５を介して水槽３内
へ供給する給水口17および洗剤自動投入装置14が設けら
れている。16は制御回路であり、これは水から隔離され
ており、すべての制御を行う。また、洗濯槽としてのド
ラム２の外周面には複数の水抜き穴１が設けられてい
る。FIG. 1 is a configuration explanatory view of a drum type washing machine showing an embodiment of the present invention, and FIG. 2 is a block diagram showing a control unit.
In FIG. 1, a water tank 3 for storing wash water and rinse water
Is suspended from the upper surface of the exterior box body 10 by a spring or the like (not shown) so as to absorb vibration generated during washing. A water tank opening 9 is formed on the side surface of the water tank 3 for taking in and out laundry such as clothes. On the side surface of the exterior box body 10 corresponding to the surface in the same direction as the water tank opening 9,
The clothes insertion door 11 is provided so that it can be opened and closed.
Can hermetically close the aquarium opening. A drain port 6 and a pollution degree detection sensor 15 are provided on the bottom surface of the water tank 3, and a drain hose 19 having a drain valve 7 is connected to the drain port 6. In addition, the pollution detection sensor
Reference numeral 15 includes an infrared light emitting diode and a phototransistor, and is configured to detect the degree of contamination of the washing liquid by the amount of light transmitted therethrough. On the other hand, a water supply port 17 for supplying washing or rinsing water into the water tank 3 via the water supply solenoid valve 5 and an automatic detergent injection device 14 are provided on the upper surface of the water tank 3. 16 is a control circuit, which is isolated from the water and does all the control. Further, a plurality of water drain holes 1 are provided on the outer peripheral surface of the drum 2 as a washing tub.
水槽３内には軸心を水平にした円筒状のドラム２が回
転可能に支持されている。このドラム２には、一方の側
面に洗濯物をドラム２内に投入するためのドラム開口部
12が形成され、衣類投入扉11の位置と略一致するように
配設されている。また、ドラム２の他方の面には軸心部
に回転軸８が固定されている。この回転軸８は水槽３を
貫通して水槽３の外部において軸受で回転可能に軸支さ
れている。さらに、この軸受の外側には回転軸８とプー
リ13とが設けられ、このプーリ13はドラム駆動モータ４
に例えばＶベルト等のベルト18を介して接続されてい
る。第２図において、MCは制御回路16に設けられたマイ
クロコンピュータであり、マイクロコンピュータMCは、
汚濁度検出センサー15からの出力をうけて、給水電磁弁
５、ドラム駆動モータ４、洗剤自動投入装置14および排
出電磁弁７を駆動するようになっている。A cylindrical drum 2 having a horizontal axis is rotatably supported in the water tank 3. This drum 2 has a drum opening on one side for loading laundry into the drum 2.
12 is formed and is arranged so as to substantially coincide with the position of the clothes insertion door 11. A rotary shaft 8 is fixed to the other surface of the drum 2 at its axial center. The rotary shaft 8 penetrates the water tank 3 and is rotatably supported by bearings outside the water tank 3. Further, a rotating shaft 8 and a pulley 13 are provided on the outer side of the bearing, and the pulley 13 serves as the drum driving motor 4.
To a belt 18 such as a V-belt. In FIG. 2, MC is a microcomputer provided in the control circuit 16, and the microcomputer MC is
The water supply solenoid valve 5, the drum drive motor 4, the detergent automatic charging device 14, and the discharge solenoid valve 7 are driven by the output from the pollution degree detection sensor 15.
次に、このドラム式洗濯機の動作を第４図に示すフロ
ーチャートを用いて説明する。まず、洗濯行程の開始時
には、水槽３内に給水口17より一定の水量Vo（ｌ）を供
給し、洗剤自動投入装置18からは一定の洗剤mo（ｇ）を
投入する（ステップ101）。この時、排水弁７は閉じら
れている。その後、ドラム駆動モータ４に通電し、ドラ
ム２を回転させ、所定時間toだけ洗濯を行う（ステップ
102）。その間、汚濁度検出センサー15で随時、洗濯液
の汚濁度Ｄを検出し、マイクロコンピュータMCによって
汚濁度Ｄの時間に対する変化率ｆを演算する。そして、
時間to経過時の汚濁度Ｄと変化率ｆの条件に対応して第
１表に示すように制御を行う。Next, the operation of this drum type washing machine will be described with reference to the flowchart shown in FIG. First, at the start of the washing process, a constant amount of water Vo (l) is supplied from the water supply port 17 into the water tank 3, and a constant amount of detergent mo (g) is supplied from the automatic detergent supplying device 18 (step 101). At this time, the drain valve 7 is closed. Then, the drum drive motor 4 is energized to rotate the drum 2 and wash for a predetermined time t o (step
102). Meanwhile, the pollution degree sensor 15 detects the pollution degree D of the washing liquid at any time, and the microcomputer MC calculates the rate of change f of the pollution degree D with respect to time. And
Control is performed as shown in Table 1 in accordance with the conditions of the pollution degree D and the change rate f when the time t o has elapsed.
また、第３図は第１表のケースNo.1〜No.4の時間Ｔ−
汚濁度Ｄの関係を示すグラフである。 Further, Fig. 3 shows the time T- of cases No. 1 to No. 4 in Table 1.
It is a graph which shows the relationship of pollution degree D.
ケースNo.1の場合、汚濁度Ｄも高く、ｆが平衡状態に
達していない事から衣類の量も多く、まだ、多量の汚れ
が付着していると考えられるので、洗剤m1（ｇ）、水V1
（ｌ）の供給が必要である。ケースNo.2の場合、ｆは平
衡状態には達していないが、汚濁度Ｄが低く、それ程汚
れの量は多くないと考えられるので、現状でΔｔ時間、
洗濯を継続し、再度判断する。In case No. 1, the degree of contamination D is high, and since f has not reached the equilibrium state, the amount of clothes is large and it is considered that a large amount of dirt is still attached. Therefore, detergent m 1 (g) , Water V 1
Supply of (l) is required. In case No. 2, f has not reached the equilibrium state, but the pollution degree D is low, and it is considered that the amount of dirt is not so large.
Continue washing and judge again.
ケースNo.3の場合は、ｆは平衡状態には達している
が、汚濁度Ｄが高いため、飽和状態であるとも考えられ
るので、洗剤m2（ｇ）・水V2（ｌ）を供給し、洗濯を継
続する。ケースNo.4は、汚濁度Ｄも低くｆも平衡状態に
達しているので、洗濯終了とする。従って、ケースNo.1
の場合（ステップ103,104）、水槽３内に給水口14より
水をV1（ｌ）供給し、洗剤自動投入装置18からは洗剤m1
（ｇ）を自動供給した後、ドラム駆動モータ４によりド
ラム２を回転させて、洗濯を継続する（ステップ105〜1
07）。その後、汚濁度Ｄの時間に対する変化率ｆがｆ＜
α２となった時（ステップ108）、洗濯が平衡状態つま
り終了したと判断し、排水弁７を開き（ステップ10
9）、排水ホース19から洗濯液を機外へ排出し、すすぎ
行程を行う（ステップ110）。ケースNo.2の場合（ステ
ップ103,104）、現状でΔｔ時間洗濯を継続し（ステッ
プ111）、Δｔ時間後に再度判断する。In case No.3, although f has reached the equilibrium state, it is considered to be saturated due to the high degree of pollution D, so detergent m 2 (g) and water V 2 (l) are supplied. And continue to wash. In case No. 4, since the pollution degree D is low and f has reached the equilibrium state, the washing is finished. Therefore, case No.1
In the case of (steps 103, 104), V 1 (l) of water is supplied from the water supply port 14 into the water tank 3, and the detergent m 1 is supplied from the automatic detergent injection device 18.
After (g) is automatically supplied, the drum 2 is rotated by the drum drive motor 4 to continue washing (steps 105 to 1).
07). After that, the change rate f of the pollution degree D with respect to time is f <
When it becomes α 2 (step 108), it is judged that the washing is in the equilibrium state, that is, it is finished, and the drain valve 7 is opened (step 10).
9), the washing liquid is discharged from the drain hose 19 to the outside of the machine, and a rinsing process is performed (step 110). In the case of Case No. 2 (steps 103 and 104), the washing is continuously continued for Δt time (step 111), and the judgment is made again after Δt time.
ケースNo.3の場合は（ステップ103,112）、水槽３内
に給水口14より水をV2（ｌ）供給し、洗剤自動投入装置
18からは洗剤m2（ｇ）を自動供給した後、ドラム駆動モ
ータ４によりドラム２を回転せしめ洗濯を継続する（ス
テップ113〜115）。その後、汚濁度Ｄの時間に対する変
化率ｆがｆ＜α３となった時（ステップ116）、洗濯が
平衡状態つまり終了したと判断し排水弁７を開き（ステ
ップ117）、排水ホース19から洗濯液を機外へ排出し、
すすぎ工程を行う（ステップ118） ケースNo.4の場合は（ステップ103,112）、その時点
で洗濯が終了していると判断し、排水弁７を開き（ステ
ップ119）、排水ホース19からの洗濯液を機外を排出
し、すすぎ工程を行う（ステップ118）。なお、この考
案はこれによって限定されるものではなく、ドラム式以
外の洗濯機への適用も可能であり、ケースパターンも更
に多様に設定することで制度の高い制御が実現できる。In case No. 3 (steps 103 and 112), V 2 (l) of water is supplied from the water supply port 14 into the water tank 3 and the automatic detergent dispenser is used.
After the detergent m 2 (g) is automatically supplied from 18, the drum drive motor 4 rotates the drum 2 to continue the washing (steps 113 to 115). After that, when the change rate f of the pollution degree D with respect to time becomes f <α 3 (step 116), it is determined that the washing is in an equilibrium state, that is, the washing is finished, the drain valve 7 is opened (step 117), and the drain hose 19 is used for washing. Drain the liquid out of the machine,
Rinse process (step 118) In case No. 4 (steps 103 and 112), it is judged that washing is completed at that time, the drain valve 7 is opened (step 119), and the washing liquid from the drain hose 19 is washed. Is discharged from the machine and a rinsing process is performed (step 118). Note that the present invention is not limited to this, and can be applied to washing machines other than the drum type, and highly precise control can be realized by setting the case pattern more variously.
（ト）発明の効果 この発明によれば、以下の効果が得られる。(G) Effects of the Invention According to this invention, the following effects can be obtained.
1.衣類の量のみならず、汚れの量に対応した洗剤、水量
が供給され、洗濯が平衡状態に達した時点を検知し、終
了するため、洗い残しや洗い過ぎによる布傷みが防止で
きる。1. Not only the amount of clothes, but also the amount of detergent and water corresponding to the amount of dirt are supplied, and when the washing reaches the equilibrium state, it is detected and terminated, and it is possible to prevent unwashed clothes and damage to the cloth due to overwashing.
2.特に使用水量の少ないドラム式洗濯機において、汚れ
量に対する洗剤不足から生じる再汚染や過剰洗剤による
泡の立ち過ぎに起因する洗浄性能の低下を未然に防ぎ、
効率的な洗濯が可能となる。2. Especially in a drum type washing machine that uses a small amount of water, it is possible to prevent deterioration of washing performance due to recontamination caused by insufficient detergent against the amount of dirt and excessive foaming due to excessive detergent.
Efficient washing is possible.
3.電気、洗剤、水の使用量が最小限に節約できる。3. Minimize electricity, detergent and water usage.
さらに具体的に説明すると、この発明によれば、洗濯
物を洗濯槽内に収容し、洗濯水と洗剤とを供給して一定
時間だけ洗濯動作を行った時点の洗濯液の汚濁度Ｄを検
出すると共にその時点における汚濁度の時間的変化率ｆ
を演算し、検出された汚濁度Ｄと演算された時間的変化
率ｆに基づいて、前記一定時間後予め設定された、設定
値α，βに対して、（ａ）Ｄ＞βのときには、洗剤と洗
濯水を補給してｆがさらに低下するまで洗濯を続ける第
１の洗濯動作、（ｂ）ｆ≦αでＤ≦βのときには、洗濯
を終了する第２の洗濯動作、（ｃ）ｆ＞αでＤ≦βのと
きには、洗剤と洗濯水を補給せずにさらに他の一定時間
だけ洗濯動作を行い、該他の一定時間だけ洗濯動作を行
った時点の洗濯液の汚濁度Ｄを検出すると共にその時点
における汚濁度の時間的変化率ｆを演算し、検出された
汚濁度Ｄと演算された時間的変化率ｆに基づいて、上記
（ａ）又は（ｂ）を再度実行する第３の洗濯動作、の内
の選定された１つの洗濯動作にて制御するので、衣類の
量のみならず、汚れ量に対応した洗濯を効率良く行うこ
とができる。More specifically, according to the present invention, the degree of contamination D of the washing liquid is detected when the laundry is stored in the washing tub, the washing water and the detergent are supplied, and the washing operation is performed for a certain period of time. And the rate of change f of pollution degree with time f
Based on the detected pollution degree D and the calculated temporal change rate f, and (a) D> β with respect to the preset values α and β preset after the fixed time, A first washing operation in which detergent and washing water are replenished to continue washing until f is further reduced, (b) A second washing operation for terminating washing when f ≦ α and D ≦ β, (c) f When D is greater than α and D ≦ β, the washing operation is performed for another fixed time without supplying detergent and washing water, and the contamination level D of the washing liquid at the time when the washing operation is performed for the other fixed time is detected. In addition, the temporal change rate f of the pollution degree at that time is calculated, and the above (a) or (b) is executed again based on the detected pollution degree D and the calculated temporal change rate f. Since the washing operation is controlled by one of the selected washing operations, not only the amount of clothes but also the amount of dirt It is possible to perform the corresponding washing efficiently.
すなわち、一定時間だけ洗濯動作を行った時点の洗濯
液の汚濁度Ｄが設定値βに対して大きい場合には、洗剤
と洗濯水とを補給して時間的変化率ｆがさらに低下する
まで洗濯をし続けることとなり、一定時間後は汚れ量に
応じた洗剤量および洗濯水量により洗濯を行うことがで
きる。これにより、汚れ量が大きいにも拘わらず、時間
的変化率ｆが停止するまで洗剤および洗濯水を補給せず
洗濯をし続ける場合に比較して、効率的な洗濯を行うこ
とができる。したがって、洗濯時間を短時間にて終了さ
せることができると共に、洗い残しや洗い過ぎによる布
傷みを確実に防止できる。しかも、洗剤および洗濯水の
補給により汚れ量に対応するので、汚れ量に再度洗濯し
直しにより対応させる場合に比較して、電気、洗剤、水
の使用量を最小限に節約できる。That is, when the degree of contamination D of the washing liquid at the time of performing the washing operation for a certain period of time is larger than the set value β, the detergent and the washing water are replenished until the temporal change rate f further decreases. After a certain period of time, the laundry can be washed with the amount of detergent and the amount of washing water according to the amount of dirt. As a result, even if the amount of dirt is large, efficient washing can be performed as compared with the case where washing is continued without supplying detergent and washing water until the temporal change rate f stops. Therefore, the washing time can be completed in a short time, and the damage to the cloth due to the unwashed portion or the excessive washing can be reliably prevented. Moreover, since the amount of dirt is dealt with by supplying detergent and washing water, the amount of electricity, detergent, and water used can be saved to a minimum as compared with the case where the amount of dirt is dealt with by washing again.
また、一定時間だけ洗濯動作を行った時点の洗濯液の
汚濁度Ｄが設定値βに対して小さく、しかもその時点に
おける汚濁度の時間的変化率ｆが設定値αに対して小さ
い場合には、汚れ量が軽く、洗濯をし続けてもそれ以上
の効果がないものとみなして洗濯を終了することができ
る。When the contamination D of the washing liquid at the time of performing the washing operation for a certain period of time is smaller than the set value β, and the temporal change rate f of the contamination degree at that time is smaller than the set value α, The amount of dirt can be lightened, and the laundry can be finished assuming that it has no further effect even if the laundry is continued.
さらに、一定時間だけ洗濯動作を行った時点の洗濯液
の汚濁度Ｄが設定値βに対して小さく、しかもその時点
における汚濁度の時間的変化率ｆが設定値αに対して大
きい場合には、洗濯水がそれほど汚れておらず、洗剤お
よび洗濯水を補給しなくても、さらに洗濯をし続けるこ
とによりその効果があるものとみなして、洗剤と洗濯水
を補給せずにさらに他の一定時間だけ洗濯動作を行い、
該他の一定時間だけ洗濯動作を行った時点の洗濯液の汚
濁度Ｄを検出すると共にその時点における汚濁度の時間
的変化率ｆを演算し、検出された汚濁度Ｄと演算された
時間的変化率ｆに基づいて、他の一定時間だけ洗濯動作
を行った時点の洗濯液の汚濁度Ｄが設定値βに対して大
きい場合には、洗剤と洗濯水とを補給して時間的変化率
ｆがさらに低下するまで洗濯をし続ける処理、および他
の一定時間だけ洗濯動作を行った時点の洗濯液の汚濁度
Ｄが設定値βに対して小さく、しかもその時点における
汚濁度の時間的変化率ｆが設定値αに対して小さい場合
には、汚れ量が軽く、洗濯をし続けてもそれ以上の効果
がないものとみなして洗濯を終了する処理のいずれかの
処理を行うことができる。Further, when the degree of contamination D of the washing liquid at the time of performing the washing operation for a certain period of time is smaller than the set value β and the rate of change f of the degree of contamination at that time is larger than the set value α, , Even if the washing water is not so dirty and the detergent and the washing water are not replenished, it is considered that the effect can be obtained by continuing the washing, and the washing water is not replenished with the detergent and the washing water is kept constant. Do the washing operation only for time,
The contamination level D of the washing liquid at the time when the washing operation is performed for the other fixed time is detected, and the temporal change rate f of the contamination level at that time is calculated to calculate the detected contamination level D and the calculated time. If the degree of contamination D of the washing liquid at the time when the washing operation is performed for another fixed time is larger than the set value β based on the change rate f, the detergent and the wash water are replenished to change the temporal change rate. A process in which washing is continued until f further decreases, and the degree of contamination D of the washing liquid at the time when the washing operation is performed for another fixed time is smaller than the set value β, and the degree of contamination changes with time When the rate f is smaller than the set value α, it is considered that the amount of dirt is light and there is no further effect even if the laundry is continued, and either of the processing of finishing the laundry can be performed. .
第１図はこの発明の実施例を示すドラム式洗濯機の構成
説明図、第２図は第１図に示すドラム式洗濯機の制御部
のブロック図、第３図は洗濯行程中の時間−汚濁度の関
係を示すグラフ、第４図は第１図の動作を示すフローチ
ャートである。 １……水抜き穴、２……ドラム、 ３……水槽、４……モータ、 ５……給水電磁弁、６……排水口、 ７……排水電磁弁、８……回転軸、 ９……水槽開口部、10……外装箱体、 11……扉、12……ドラム開口部、 13……プーリ、14……洗剤自動投入装置、 15……汚濁度センサ、17……給水口。FIG. 1 is an explanatory view of the structure of a drum type washing machine showing an embodiment of the present invention, FIG. 2 is a block diagram of a control unit of the drum type washing machine shown in FIG. 1, and FIG. 3 is a time during a washing process. FIG. 4 is a graph showing the relationship of pollution degree, and FIG. 4 is a flow chart showing the operation of FIG. 1 ... Drainage hole, 2 ... Drum, 3 ... Water tank, 4 ... Motor, 5 ... Water supply solenoid valve, 6 ... Drainage port, 7 ... Drainage solenoid valve, 8 ... Rotating shaft, 9 ... … Water tank opening, 10 …… External box, 11 …… Door, 12 …… Drum opening, 13 …… Pulley, 14 …… Automatic detergent dispenser, 15 …… Contaminant sensor, 17 …… Water inlet.
Claims (1)
濯物を収容する洗濯槽と、給水装置と、洗剤供給装置
と、洗濯液の汚濁度を検出する汚濁度検出センサーとを
備え、前記濁度検出センサーにて検出された汚濁度に基
づいて給水装置，洗剤供給装置を選択して駆動させて予
め設定された複数の洗濯動作の内の選定された１つの洗
濯動作を行う洗濯機の制御方法において、洗濯物を洗濯
槽内に収容し、洗濯水と洗剤とを供給して一定時間だけ
洗濯動作を行った時点の洗濯液の汚濁度Ｄを検出すると
共にその時点における汚濁度の時間的変化率ｆを演算
し、検出された汚濁度Ｄと演算された時間的変化率ｆに
基づいて、前記一定時間後予め設定された、 設定値α，βに対して、 （ａ）Ｄ＞βのときには、洗剤と洗濯水を補給してｆが
さらに低下するまで洗濯を続ける第１の洗濯動作、 （ｂ）ｆ≦αでＤ≦βのときには、洗濯を終了する第２
の洗濯動作、 （ｃ）ｆ＞αでＤ≦βのときには、洗剤と洗濯水を補給
せずにさらに他の一定時間だけ洗濯動作を行い、該他の
一定時間だけ洗濯動作を行った時点の洗濯液の汚濁度Ｄ
を検出すると共にその時点における汚濁度の時間的変化
率ｆを演算し、検出された汚濁度Ｄと演算された時間的
変化率ｆに基づいて、上記（ａ）又は（ｂ）を再度実行
する第３の洗濯動作、 の内の選定された１つの洗濯動作にて制御することを特
徴とする洗濯機の制御方法。1. A water tub, a washing tub rotatably provided in the water tub for accommodating laundry, a water supply device, a detergent supply device, and a pollution degree detection sensor for detecting the contamination degree of a washing liquid. A washing operation in which one of a plurality of preset washing operations is selected by driving a water supply device and a detergent supply device based on the pollution level detected by the turbidity detection sensor In the control method of the machine, the degree of contamination D of the washing liquid is detected at the time when the laundry is stored in the washing tub, the washing water and the detergent are supplied, and the washing operation is performed for a certain time. The temporal change rate f of is calculated, and based on the detected pollution degree D and the calculated temporal change rate f, with respect to the set values α and β preset after the certain time, (a) When D> β, add detergent and washing water to lower f First washing operation to continue washing until, when D ≦ beta in (b) f ≦ α is first ends the laundry 2
(C) When f> α and D ≦ β, the washing operation is performed for another fixed time without replenishing the detergent and the washing water, and the washing operation is performed for another fixed time. Pollution degree D of washing liquid
And the temporal change rate f of the pollution degree at that time is calculated, and the above (a) or (b) is executed again based on the detected pollution degree D and the calculated temporal change rate f. A method of controlling a washing machine, characterized in that the washing machine is controlled by a selected one of the third washing operations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004091A JP2674851B2 (en) | 1990-01-10 | 1990-01-10 | Washing machine control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004091A JP2674851B2 (en) | 1990-01-10 | 1990-01-10 | Washing machine control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03207396A JPH03207396A (en) | 1991-09-10 |
| JP2674851B2 true JP2674851B2 (en) | 1997-11-12 |
Family
ID=11575126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004091A Expired - Lifetime JP2674851B2 (en) | 1990-01-10 | 1990-01-10 | Washing machine control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2674851B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1973752B (en) * | 2005-12-01 | 2010-09-29 | 松下电器产业株式会社 | Dishware cleaner |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109512359A (en) * | 2018-12-31 | 2019-03-26 | 华帝股份有限公司 | Dish washing machine and detergent feeding control device and method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6187595A (en) * | 1984-10-05 | 1986-05-02 | シャープ株式会社 | Rinsing apparatus of washing apparatus |
| JPS61159999A (en) * | 1985-01-08 | 1986-07-19 | シャープ株式会社 | Control of washing machine |
-
1990
- 1990-01-10 JP JP2004091A patent/JP2674851B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1973752B (en) * | 2005-12-01 | 2010-09-29 | 松下电器产业株式会社 | Dishware cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03207396A (en) | 1991-09-10 |
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