KR102522052B1 - Controlling method for washing machine - Google Patents

Abstract

A control method of a washing machine according to an embodiment of the present invention includes setting a laundry delay time period for delaying laundry; selecting a washing course; inputting a start command for operating in the selected washing course; determining whether a current time is included in the laundry delay time zone when a start command is input; and setting a reservation for the selected wash course to start after the wash delay time period, depending on whether the selected wash course is a standard course, if the current time is included in the wash delay time period.

Description

Controlling method for washing machine {Controlling method for washing machine}

The present invention relates to a control method for a washing machine.

In general, a washing machine is a device that removes contaminants from contaminated laundry through processes such as washing, rinsing, and spin-drying according to a set algorithm.

Specifically, upon receiving a washing command, the washing machine may supply washing water up to a preset water level and remove contaminants through emulsification of detergent and water flow generated while the washing tub or pulsator is rotated and driven. After washing the laundry, the washing machine drains the washing water and supplies the washing water again to rinse the laundry, and drains the washing water again when the rinsing cycle is completed, and spins the washing tub to spin the laundry.

[0003] Recently, a washing machine has been released that has a washing reservation function and allows a user to set a laundry reservation at a desired time period.

In this regard, prior art Korean Utility Model Registration No. 20-0289982 (September 9, 2002) discloses a control device for a washing machine having a reservation function.

In the prior literature, when a desired washing driving time is input, the input driving time is compared with the current time, and when the input driving time reaches the current time, a washing machine performing a washing cycle is started.

That is, prior literature discloses a washing machine in which the inconvenience of calculating the delay time is eliminated and the user's convenience is improved by allowing the user to directly input the reserved driving time of the washing machine.

However, the prior literature has the following problems.

First, in the conventional washing machine, since the user has to input the reservation start time or reservation end time for the reservation operation each time for reservation operation, there is a cumbersome and inconvenient problem accordingly.

Second, since the conventional washing machine simply provides an immediate driving function or a reserved driving function, there is a problem in that the washing machine is driven even at night and generates loud noise.

1. Registration number (registration date): 20-0289982 (September 9, 2002) 2. Title of invention: Washing machine control device with reservation function

The present invention has been made to solve the above problems, and an object of the present invention is to provide a control method for a washing machine that can automatically reserve a laundry reservation time for reservation operation without directly inputting it.

Another object of the present invention is to provide a control method for a washing machine in which a washing operation can be performed avoiding night time zones by setting a laundry delay time zone for delaying laundry.

Another object of the present invention is to provide a control method for a washing machine in which a selected wash course can be reserved and set to be performed after the end of the wash delay time period when a wash start command is input in the wash delay time period.

Another object of the present invention is to provide a control method for a washing machine in which the washing can be performed by changing the input washing course to a low-noise course when a washing start command is input in a washing delay time period.

In a control method of a washing machine according to an embodiment of the present invention, when a laundry delay time period for delaying a wash is set and a start command for operating a selected wash course is input, it is determined whether the current time is included in the laundry delay time period. do.

Further, if the current time is included in the laundry delay time period, the selected wash course can be reserved to start after the laundry delay time period according to whether the selected wash course is a standard course, so that the laundry reservation can be made by avoiding the laundry delay time period. It has the advantage of being automatic.

In addition, if it is determined that the selected washing course is a standard course, the selected washing course is changed to a low-noise course, and washing can be performed immediately.

Here, the low-noise course may be a course in which the drum is rotated at a lower RPM than the RPM of the drum set in the standard course. Therefore, washing noise can be effectively reduced in the washing delay period.

On the other hand, if it is determined that the selected wash course is not the standard course, the selected wash course may be reserved and set to start after the end of the wash delay time period.

Meanwhile, if the current time is not included in the wash delay time period, washing may be immediately performed in the selected wash course.

Alternatively, if the current time is not included in the wash delay time zone, the expected wash time of the selected wash course is calculated by detecting the amount of laundry, and it can be determined whether or not the wash end point of the expected wash time is included in the wash delay time zone. there is.

In this case, when the laundry end point of the expected wash time is included in the wash delay time slot, a reservation may be set to start the selected wash course after the end point of the wash delay time slot.

After a start command for operating in the selected wash course is input, it may be determined whether the delay wash function is activated, and if it is determined that the delay wash function is deactivated, the laundry can be immediately performed in the selected wash course. .

According to the control method of the washing machine according to the present embodiment, the following effects are provided.

First, since a reservation can be made automatically without directly inputting a laundry reservation time for reservation operation, there is an advantage in improving usability.

Second, since a wash delay time period for delaying laundry can be set and the washing delay time period can be avoided and driven according to a wash start command, the washing machine can be driven avoiding the night time period.

Third, when a wash start command is input in the wash delay time zone, if the selected wash course is a standard course, washing can be performed by changing to a low-noise course, thereby significantly reducing washing noise.

Fourth, when the laundry end time of the expected wash time is included in the laundry delay time zone, the selected wash course can be reserved to start after the end of the laundry delay time zone, thus enabling more effective reservation setting.

1 is a perspective view of a washing machine according to an embodiment of the present invention;
2 is a block diagram showing a block configuration of a washing machine according to an embodiment of the present invention;
3 is a flowchart illustrating a control method of a washing machine according to an embodiment of the present invention.
4 is a time graph for explaining a laundry delay method according to an embodiment of the present invention;
5 is a flowchart illustrating a control method of a washing machine according to another embodiment of the present invention.
6 is a time graph for explaining a laundry delay method according to another embodiment of the present invention;

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings. In addition, in describing an embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function hinders understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

Also, terms such as first, second, A, B, (a), and (b) may be used to describe components of an embodiment of the present invention. These terms are only used to distinguish the component from other components, and the nature, order, or order of the corresponding component is not limited by the term. When an element is described as being “connected,” “coupled to,” or “connected” to another element, that element may be directly connected or connected to the other element, but there may be another element between the elements. It should be understood that may be "connected", "coupled" or "connected".

Hereinafter, a washing machine according to an embodiment of the present invention will be described in detail with reference to the drawings.

The washing machine described below will be described as a front loading type washing machine in which a drum is installed horizontally and rotates around a horizontal axis so that laundry clothes can be loaded from the front.

However, the present invention is not limited thereto, and it can be applied to a top loading type washing machine in which a drum is provided vertically and rotates about a vertical axis so that laundry can be loaded from above.

1 is a perspective view of a washing machine according to an embodiment of the present invention.

Referring to FIG. 1, a washing machine 100 according to an embodiment of the present invention includes a cabinet 101 forming an exterior, a front cover 103 mounted on the front surface of the cabinet 101 and having a laundry entrance 102, and , It may include a drum 107 for accommodating laundry and a tub (not shown) accommodating the drum 107 and storing wash water therein.

In addition, the washing machine 100 may further include a motor ( 130 in FIG. 2 ) providing rotational power to the drum 107 .

The drum 107 can be understood as an "inner bowl" and the tub as an "outer bowl". Alternatively, the drum 107 may be understood as a “washing tank” and the tub may be understood as a “drying tank”.

In detail, the cabinet 101 may have a substantially hexahedral shape.

A space for installing a plurality of parts may be formed inside the cabinet 101 of the washing machine 100 . The plurality of parts may include, for example, the drum 107, the tub, the motor 130, and a control part controlling the motor.

A laundry entrance 102 may be formed in the front cover 103 .

The laundry entrance 102 may be formed substantially at the center of the front cover 103 . A door 108 for opening and closing the laundry entrance 102 may be rotatably installed on the front cover 103 .

A gasket (not shown) may be provided between the door 108 and the tub to maintain airtightness.

The washing machine 100 may further include a control panel 104 provided on the top of the front of the cabinet 101 .

The control panel 104 may include a display for displaying an operating state of the washing machine 100 . The control panel 104 may include a plurality of buttons or knobs for manipulating the operation of the washing machine 100 .

The washing machine 100 may further include a detergent drawer 105 provided at an upper front portion of the cabinet 101 .

The detergent drawer 105 may be provided on the side of the control panel 104 . The detergent drawer 105 may have a shape in which a portion into which detergent is put and stored and a portion exposed to the front are integrally formed.

The detergent drawer 105 may be connected to a water supply pipe (not shown) through which cold/hot water is supplied. Cold/hot water may flow into the detergent drawer 105 from the water supply pipe. In addition, water mixed with at least one of detergent and fabric softener in the detergent drawer 105 may be supplied to the inside of the drum 107 in which laundry cloths are accommodated via the tub.

The washing machine 100 may further include a service cover 106 provided at a lower front surface of the cabinet 101 .

The service cover 106 is configured to remove residual water present in the washing machine 100 by opening it while the washing machine 100 is stopped.

In the drum 107, a washing process in which dirt adhered to clothes, bedding, etc. (hereinafter referred to as 'cloth') is separated by the action of detergent and water, a rinsing step in which the cloth is rinsed by the action of water, and a dehydration in which the cloth is centrifugally dehydrated administration can take place.

The drum 107 has a cylindrical shape and is accommodated inside the tub. For example, the drum 107 is formed in a cylindrical shape lying at a predetermined angle, and a hand hole (not shown) may be formed around it.

Accordingly, wash water stored in the tub may flow into the drum 107 through the water hole. Alternatively, the washing water inside the drum 107 may move to the outside of the drum 107 through the water hole.

The drum 107 may include a pulsator (not shown) for inducing flow of wash water inside the drum 107 . At this time, in the washing machine 100, the pulsator may be provided inside the drum 107, and a motor 130 for directly rotating the drum 107 may be mounted at the rear end of the tub.

Alternatively, in the washing machine 100, the pulsator is provided inside the drum 107, and the motor 130 is provided at the rear end of the tub, and the driving force of the motor 130 is converted to the pulsator or the drum 107. It is also possible to mount a power transmission mechanism such as a clutch to transmit.

Meanwhile, wash water for washing or rinsing is contained in the tub. And, the tub is provided to accommodate the drum 107 . For example, the tub may be formed in a cylindrical shape.

The tub may be installed hanging from the cabinet 101 or the front cover 103 . The drum 107 disposed inside the tub is rotatable by the rotational force of the motor 130 .

In addition, the washing machine 100 may further include a water supply device (not shown) for supplying wash water to the tub and a drain device (not shown) for draining wash water from the tub.

The water supply device may include a water supply hose connected to the outside (eg, a faucet, etc.), and a water supply valve controlling whether or not water is supplied to the tub.

The drainage device may include a drain valve for controlling whether water in the tub is drained or not drained, and a drain hose extending outward from the drain valve to drain water to the outside.

2 is a block diagram showing a block configuration of a washing machine according to an embodiment of the present invention.

Referring to FIG. 2 , the washing machine 100 includes at least some of an input unit 110, an output unit 120, a motor 130, an RTC 140, a memory 150, a communication unit 160, and a control unit 170. or all of them.

The input unit 110 is configured to receive an input signal related to driving of the washing machine from a user. The input unit 110 may include a course selector for selecting various washing courses and a wash delay selector for selecting a wash delay function.

In the present invention, a washing course means an operation of a washing machine in which a washing operation, a rinsing operation, and a spin-drying operation are automatically performed in order.

The washing process is a process of washing laundry using wash water and detergent, the rinsing process is a process of discharging residual detergent and contaminants from laundry using wash water, and the spin-drying process is a process of removing wash water from laundry. It is made including the dehydration process to discharge.

In the present invention, the laundry delay function means a function of limiting the operation of the washing machine within a predetermined specific time period. For example, the user may set a laundry delay time period for delaying laundry, and the operation of the washing machine 100 may be limited in the set laundry delay time period.

In addition, the wash delay function is a function that, when a wash start command is input within the set wash delay time zone, allows the input wash course to be performed in a section outside the wash delay time zone. That is, if the time at which the wash start command is input is included in the wash delay time period, it may be understood as a function of delaying the wash operation by shifting the wash start time to after the end of the wash delay time period.

Meanwhile, courses selectable through the course selector may include standard courses and non-standard courses other than standard courses.

The standard course may generally mean a basic washing course consisting of a washing operation, a rinsing operation, and a spin-drying operation. The standard course may be in a state in which a predetermined water supply amount, water temperature, washing time, RPM of the drum (motor), etc. according to each stroke are set in advance.

The non-standard course is a course other than the standard course, and may mean, for example, duvet washing, wool washing, rapid washing, and the like. The duvet washing, wool washing, and quick washing may have a relatively high RPM at which the drum rotates compared to each cycle included in the standard course. That is, the non-standard course may have greater vibration and noise than the standard course.

In addition, the non-standard course may include a course in which a drum driving motion accompanied by high noise and high vibration is added.

The course selector may be a rotary knob, and the wash delay selector may be a physical button or a touch button.

The output unit 120 may display information related to the operation of the washing machine 100 . Specifically, the output unit 120 may output a type of wash course that the washing machine 100 can perform, status information of a currently ongoing wash course, a wash end message, or an error message. Also, the output unit 120 may output information on selection (activation) or non-selection (deactivation) of the laundry delay function.

The output unit 120 may include a display. That is, information related to the operation of the washing machine 100 may be output through the display.

Also, the output unit 120 may include at least one or more LEDs. That is, information related to the operation of the washing machine 100 may be output through the color or blinking state of light emitted from the LED.

Also, the output unit 120 may further include an audio device. That is, information related to the operation of the washing machine 100 may be output as voice through the audio device.

Therefore, the user can easily check whether or not the wash delay function of the washing machine 100 has been selected, and information on the selected wash course or the currently operating wash course through the output unit 120 .

The motor 130 functions to transmit rotational force to the drum 107 and/or the pulsator. The motor 130 is rotated at a predetermined RPM under the control of the controller 170 to rotate the drum 107 and/or the pulsator in one direction or another.

The real-time clock (RTC) 140 is understood as a component for acquiring current time information or real time pattern (RTP) information. For example, the user may input or set the current time using the RTC 140, and thus the washing machine 100 may maintain current time information even when the power is turned off.

Information related to driving of the washing machine 100 is stored in the memory 150 .

Specifically, the memory 150 stores the water supply amount, water temperature, washing time, RPM of the drum (motor), and the like for the standard course and non-standard course that the washing machine 100 can drive. In addition, the memory 150 may store information on the time taken to complete each process or course, the amount of water required for each load, and drum RPM information.

In addition, the memory 150 may store a laundry delay time period set by the user. For example, the user may set a laundry delay time period for limiting driving of the washing machine 100 through the input unit 110 . The laundry delay time period may be a night time period or an arbitrary time set by a user.

The communication unit 160 is a component that allows the washing machine 100 to communicate with a server or a mobile terminal. The communication unit 160 may communicate with a server or a mobile terminal through various wireless communication methods.

For example, when the washing machine 100 is communicatively connected to the mobile terminal, the washing machine 100 may receive current time information from the mobile terminal in real time. Then, the washing machine 100 can obtain current time information even if the RTC 140 is not provided.

The control unit 170 is a component that performs driving and overall control of the washing machine 100 . That is, the controller 170 may control at least some or all of the input unit 110, the output unit 120, the motor 130, the RTC 140, the memory 150, and the communication unit 160.

The control unit 170 receives a washing course and a laundry delay time period through the input unit 110, and controls the washing cycle to be limited in the laundry delay time period. Once the laundry delay time period is set, the time period can be maintained even if the power of the washing machine 100 is turned off. That is, the user can control the operation of the washing machine 100 to avoid the laundry delay time period by pressing the wash start button without additional setting.

Hereinafter, a method for controlling a washing machine according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a flowchart showing a method for controlling a washing machine according to an embodiment of the present invention, and FIG. 4 is a time graph for explaining a method for delaying laundry according to an embodiment of the present invention.

Referring to FIG. 3 , the operating course of the washing machine 100 is selected in step S10 and the start of washing is selected in step S20.

Specifically, a driving course (washing course) may be selected through the course selector to wash the laundry. In the present invention, one of a plurality of washing courses may be selected through the course selector. The selected course may be a standard course or a non-standard course. Further, a wash start command may be input by the user.

When a wash start command is input, in step S30, the controller 170 determines whether the wash delay function is activated.

In the present invention, the laundry delay function means a function of limiting the operation of the washing machine within a predetermined specific time period. For example, the user may set a laundry delay time period for delaying laundry, and the operation of the washing machine 100 may be limited in the set laundry delay time period.

In this embodiment, the laundry delay time period may be set in advance before the step of selecting the driving course. When the laundry delay time period is set, it is possible to select whether to use or not use the laundry delay function. For example, when the laundry delay function selection unit is selected, the laundry delay function may remain activated, and when the laundry delay function selection unit is released, the laundry delay function may remain deactivated.

That is, once activation of the wash delay function is set by the user, use of the wash delay function can be maintained even if the power of the washing machine 100 is turned off. Accordingly, there is an advantage in that a user does not require a separate operation for activating the wash delay function.

If the wash delay function is not activated, the controller 170 detects the amount of laundry in step S40 and determines the washing time and amount of water supplied according to the amount of clothes in step S50 to perform washing. That is, when the wash delay function is deactivated, the controller 170 performs a general wash cycle.

Meanwhile, if the laundry delay function is activated, in step S60, the controller 170 determines whether the current time is included in the laundry delay time zone. The laundry delay time period may be set to a late night time period or a time period desired by the user.

For example, as shown in FIG. 4 , in a state where the laundry delay period D is set to 22:00 to 06:00, a wash start command for a wash course having an expected wash time T of 3 hours may be input at 02:00.

In this case, although the time point Ta at which the wash start command is input is 02:00, it is included in the wash delay time period D, so washing can be restricted. That is, even if a wash start command is input at 02:00, the wash may not start at 02:00 and the wash may start after the wash delay period D ends.

In other words, when a wash start command is input at 02:00, the wash may not be started immediately, but may be set to start after the end of the wash delay time period (D). For example, when a wash start command is input at 02:00, the time at which the washing process actually starts (Ts) may be 06:00, the time at which the washing delay period (D) ends, and the time at which the washing process ends (Te) may be 9 hours.

Accordingly, since the washing delay time period D can be avoided and driven according to the washing start command, the washing machine can be operated avoiding the night time zone, for example. In addition, since a reservation can be made automatically without directly inputting a laundry reservation time for reservation operation, convenience of use is improved.

Meanwhile, when the current time is included in the laundry delay time zone, in step S70, the controller 170 determines whether the input driving course is a standard course.

As described above, the driving course of the washing machine 100 may be divided into a standard course and a non-standard course.

If the input driving course is a standard course, in step S80, the controller 170 changes the input driving course to a low noise course.

In the present invention, the low-noise course means a course in which the RPM of the drum is reduced in order to reduce noise or vibration for each stroke corresponding to the standard course.

That is, when the low-noise course is changed, the drum may be rotated at a predetermined value or a predetermined ratio lower than the RPM set for each of the washing, rinsing, and spin-drying cycles. Therefore, when operated in a low-noise course, noise and vibration can be greatly reduced. However, since the washing power may be reduced when the RPM is lowered, the washing time may be increased accordingly.

Thereafter, in step S40, the controller 170 detects the amount of laundry and performs a washing cycle in step S50.

On the other hand, if the input driving course is not a standard course, in step S90, the controller 170 detects the amount of laundry and calculates the amount of water supplied and the expected washing time.

In step S100, the controller 170 reserves laundry to avoid a laundry delay time period.

Specifically, when the expected washing time according to the amount of fabric is calculated, the start time of the reserved wash is set after the end of the delay time period. For example, the laundry start time of the reserved laundry may be the end time of the laundry delay time period.

However, it is not limited thereto, and the washing start time may be a time when a predetermined time elapses after the end of the laundry delay time period. That is, the wash start time may be determined by considering the target wash end time desired by the user. In this case, the wash start point may be set so that the wash course ends at a target wash end time desired by the user.

Then, in step S120, the controller 170 determines whether the current time arrives at the scheduled washing time, and if the current time arrives at the scheduled washing time, it performs a washing cycle in step S50.

According to the configuration of the present invention, when a wash start command is input in the wash delay time zone, if the selected wash course is a standard course, washing can be performed by changing to a low-noise course, thereby significantly reducing washing noise. there is.

In addition, when a wash start command is input in the wash delay time zone, if the selected wash course is not a standard course, the laundry can be automatically reserved after the end of the wash delay time zone, thereby enabling more effective reservation setting.

5 is a flowchart illustrating a method of controlling a washing machine according to another embodiment of the present invention, and FIG. 6 is a time graph for explaining a method of delaying washing according to another embodiment of the present invention.

Referring to FIG. 5 , the operating course of the washing machine 100 is selected in step S310 and the start of washing is selected in step S320.

Specifically, a driving course (washing course) may be selected through the course selector to wash the laundry. In the present invention, one of a plurality of washing courses may be selected through the course selector. The selected course may be a standard course or a non-standard course. Further, a wash start command may be input by the user.

When a wash start command is input, in step S330, the controller 170 determines whether the wash delay function is activated.

In the present invention, the laundry delay function means a function of limiting the operation of the washing machine within a predetermined specific time period. For example, the user may set a laundry delay time period for delaying laundry, and the operation of the washing machine 100 may be limited in the set laundry delay time period.

In this embodiment, the laundry delay time period may be set in advance before the step of selecting the driving course. When the laundry delay time period is set, it is possible to select whether to use or not use the laundry delay function. For example, when the laundry delay function selection unit is selected, the laundry delay function may remain activated, and when the laundry delay function selection unit is released, the laundry delay function may remain deactivated.

That is, once activation of the wash delay function is set by the user, use of the wash delay function can be maintained even if the power of the washing machine 100 is turned off. Accordingly, there is an advantage in that a user does not require a separate operation for activating the wash delay function.

If the wash delay function is not activated, in step S340, the controller 170 detects the amount of laundry, and in step S350, water supply and washing time are determined according to the amount of laundry, and then the laundry is performed. That is, when the wash delay function is deactivated, the controller 170 performs a general wash cycle.

Meanwhile, if the laundry delay function is activated, in step S360, the controller 170 determines whether the current time is included in the laundry delay time zone. The laundry delay time period may be set to a late night time period or a time period desired by the user.

If the current time is not included in the laundry delay time zone, the controller 170 detects the amount of laundry in step S390 and calculates the amount of water supplied and the expected washing time according to the amount of laundry in step S400.

In step S410, the controller 170 determines whether the estimated wash end time is included in the wash delay time zone.

Here, the reason why it is determined whether the expected wash end time is included in the laundry delay time zone is that the expected wash end time may be included in the laundry delay time zone even if the current time is not included in the laundry delay time zone.

For example, as shown in FIG. 6 , in a state where the laundry delay period D is set to 22:00 to 06:00, a wash start command for a wash course having an expected wash time T of 3 hours may be input at 20:00.

In this case, since the time (Ta) at which the wash start command is input is 20:00, the time (Ta) at which the wash start command is input is not included in the wash delay period (D). However, since the expected washing time T is 3 hours, if washing starts at 20:00, washing may end at 23:00. That is, the expected wash end time Tp may be included in the wash delay time period D.

Therefore, even if the time when the wash start command is input (Ta) is not included in the laundry delay time period (D), it is determined whether or not the expected wash end time (Tp) is included in the laundry delay time period (D). It is possible to prevent washing from being performed in D).

If the estimated wash end time is not included in the wash delay time period, the controller 170 may proceed to step S350 to immediately perform the wash cycle.

If the expected wash end time is included in the laundry delay time period, in step S420, the controller 170 reserves laundry to avoid the laundry delay time period.

Specifically, when the expected washing time according to the amount of fabric is calculated, the start time of the reserved wash is set after the end of the delay time period. For example, the laundry start time of the reserved laundry may be the end time of the laundry delay time period.

However, it is not limited thereto, and the washing start time may be a time when a predetermined time elapses after the end of the laundry delay time period. That is, the wash start time may be determined by considering the target wash end time desired by the user. In this case, the wash start point may be set so that the wash course ends at a target wash end time desired by the user.

In step S430, the controller 170 determines whether the current time has arrived at the scheduled laundry time, and if the current time has arrived at the scheduled washing time, performs a washing operation in step S350.

Meanwhile, when the current time is included in the laundry delay time zone, in step S370, the controller 170 determines whether the input driving course is a standard course.

As described above, the driving course of the washing machine 100 may be divided into a standard course and a non-standard course.

If the input driving course is a standard course, in step S380, the controller 170 changes the input driving course to a low noise course.

In the present invention, the low-noise course means a course in which the RPM of the drum is reduced in order to reduce noise or vibration for each stroke corresponding to the standard course.

That is, when the low-noise course is changed, the drum may be rotated at a predetermined value or a predetermined ratio lower than the RPM set for each of the washing, rinsing, and spin-drying cycles. Therefore, when operated in a low-noise course, noise and vibration can be greatly reduced. However, since the washing power may be reduced when the RPM is lowered, the washing time may be increased accordingly.

Thereafter, in step S340, the controller 170 detects the amount of laundry and performs a washing cycle in step S350.

On the other hand, if the input driving course is not a standard course, the controller 170 may sequentially perform steps below S390 described above.

According to the configuration of the present invention, when the laundry end time of the expected wash time is included in the laundry delay time period, the selected wash course can be reserved to start after the end of the laundry delay time period, enabling more effective reservation setting. There are advantages.

Claims (10)

setting a laundry delay time period for delaying laundry;
selecting a washing course;
inputting a start command for operating in the selected washing course;
determining whether a current time is included in the laundry delay time zone when a start command is input; and
and setting a reservation for a selected wash course to start after the wash delay time period, depending on whether the selected wash course is a standard course, if the current time is included in the wash delay time period.
If the current time is not included in the wash delay time zone, the expected washing time of the selected wash course is calculated by detecting the amount of laundry;
It is determined whether the wash end point of the expected wash time is included in the laundry delay time period, and if the wash end point of the expected wash time is included in the wash delay time period, the selected wash course is within the laundry delay time period. A control method for a washing machine that is scheduled to start after an end point. According to claim 1,
A control method of a washing machine in which, when it is determined that the selected wash course is a standard course, the selected wash course is changed to a low-noise course and washing is immediately performed. According to claim 2,
The low-noise course is a course in which the drum is rotated at a lower RPM than the RPM of the drum set in the standard course. According to claim 1,
A control method for a washing machine, wherein if it is determined that the selected wash course is not a standard course, the selected wash course is reserved and set to start after the end of the wash delay time period. According to claim 1,
A control method of a washing machine, characterized in that if the current time is not included in the wash delay time period, washing is immediately performed according to the selected wash course. delete delete delete According to claim 1,
A control method of a washing machine, further comprising determining whether a wash delay function is activated after a start command for operating a selected wash course is input. According to claim 9,
When it is determined that the wash delay function is deactivated, washing is immediately performed according to the selected wash course.

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