Washing machine and controlling method thereof

Abstract

A washing machine may include a drum, a driving device to rotate the drum, a control panel to receive input of a washing course and information indicating a reservation ending time, a memory to store information on time for proceeding with a washing course corresponding to an operation mode of a plurality of operation modes, and at least one processor configured to: obtain a target heating temperature lower than a set temperature of the washing course according to a general mode of the plurality of operating modes, based on a remaining time, being longer than a time to be spent in the general mode according to the stored information on time for proceeding with the washing course in the general mode, and control the driving device to proceed with the washing course in an operation mode of the plurality of operation modes based on the obtained target heating temperature.

What is claimed is: 
     
         1 . A washing machine comprising:
 a drum;   a driving device to rotate the drum;   a control panel to receive input of a washing course and information indicating a reservation ending time;   a memory to store information on time for proceeding with a washing course corresponding to an operation mode of a plurality of operation modes; and   at least one processor configured to:
 obtain a target heating temperature lower than a set temperature of the washing course according to a general mode of the plurality of operating modes, based on a remaining time, corresponding to a difference between the reservation ending time and a current time, being longer than a time to be spent in the general mode according to the stored information on time for proceeding with the washing course in the general mode, and 
 control the driving device to proceed with the washing course in an operation mode of the plurality of operation modes based on the obtained target heating temperature. 
   
     
     
         2 . The washing machine of  claim 1 ,
 wherein the at least one processor is further configured to:   obtain the target heating temperature based on a ratio of a first time difference between the time to be spent in the general mode for the washing course and the remaining time, and a second time difference between a time to be spent in a cold water mode of the plurality of operating modes for the washing course according to the stored information and the time to be spent in the general mode for the washing course according to the stored information.   
     
     
         3 . The washing machine of  claim 1 ,
 wherein the at least one processor is further configured to:   calculate a washing time based on the obtained target heating temperature,   obtain a starting time of the washing course based on the calculated washing time and the reservation ending time, and   control the driving device to proceed with the washing course at the obtained starting time.   
     
     
         4 . The washing machine of  claim 1 , further comprising:
 a hot water supply device that heats water and supplies the heated water to the drum,   wherein the at least one processor is further configured to:
 based on the washing course including at least one of a washing cycle or a rinsing cycle, control the hot water supply device so that heated water corresponding to the obtained target heating temperature is supplied to the drum in the at least one of the washing cycle or the rinsing cycle. 
   
     
     
         5 . The washing machine of  claim 1 , further comprising:
 a heat pump system that includes a compressor to compress a refrigerant and a condenser to condense the refrigerant, and to provide air to inside of the drum; and   a heater to heat air to be provided to the inside of the drum,   wherein the at least one processor is further configured to:
 based on the washing course including a drying cycle, control at least one of the heat pump system or the heater based on an obtained target heating temperature of the drying cycle. 
   
     
     
         6 . The washing machine of  claim 1 ,
 wherein the at least one processor is further configured to:
 identify an operation mode among the general mode, a maximum energy saving mode, or a partial energy saving mode based on the current time, the reservation ending time, and the remaining time, and 
 based on the operation mode being identified as the partial energy saving mode, control the driving device to proceed with the washing course based on the obtained target heating temperature and the partial energy saving mode. 
   
     
     
         7 . The washing machine of  claim 1 ,
 wherein the at least one processor is further configured to:
 based on a size of the remaining time being greater than or equal to a size of a time to be spent in a cold water mode of the plurality of operation modes for the washing course according to the stored information, control the driving device to proceed with the washing course based on a maximum energy saving mode, and 
 based on the size of the remaining time being smaller than the size of the time to be spent in the cold water mode for the washing course according to the stored information, control the driving device to proceed with the washing course based on a partial energy saving mode. 
   
     
     
         8 . The washing machine of  claim 1 ,
 wherein the information indicating the reservation ending time is obtained based on a neural network model trained to output the information indicating the reservation ending time, and   the at least one processor is further configured to:
 obtain the reservation ending time by inputting information indicating the current time into the trained neural network model, 
 identify the remaining time based on the obtained reservation ending time and the current time, and 
 control the driving device to proceed with the washing course based on a size of the identified remaining time. 
   
     
     
         9 . The washing machine of  claim 1 ,
 wherein the at least one processor is further configured to:   based on the remaining time being longer than a time to be spent in the general mode for the washing course according to the stored information, control the control panel to display that the washing course is able to operate in an energy saving mode among the plurality of operation modes.   
     
     
         10 . The washing machine of  claim 1 ,
 wherein the at least one processor is further configured to:   based on a time to be spent in the general mode for the washing course according to the stored information being longer than the remaining time, control the control panel to provide a suggestion to a user to change the washing course.   
     
     
         11 . A controlling method of a washing machine including a drum, a driving device to rotate the drum, a control panel to receive input of a washing course and information indicating a reservation ending time, a memory to store information on time for proceeding with a washing course corresponding to an operation mode of a plurality of operation modes, and at least one processor, the controlling method comprising:
 with the at least one processor,
 receiving, with the control panel, the input of a washing course and information indicating a reservation ending time; 
 obtaining a target heating temperature lower than a set temperature of the washing course according to a general mode of the plurality of operating modes, based on a remaining time, corresponding to a difference between the reservation ending time and a current time, being longer than a time to be spent in the general mode according to the stored information on time for proceeding with the washing course in the general mode, and 
 proceeding with the washing course in an operation mode of the plurality of operation modes based on the obtained target heating temperature. 
   
     
     
         12 . The controlling method of  claim 11 ,
 wherein the obtaining the target heating temperature further includes:   with the at least one processor,
 obtaining the target heating temperature based on a ratio of a first time difference between the time to be spent in the general mode for the washing course and the remaining time, and a second time difference between a time to be spent in a cold water mode of the plurality of operation modes for the washing course according to the stored information and the time to be spent in the general mode for the washing course according to the stored information. 
   
     
     
         13 . The controlling method of  claim 11 , further comprising:
 with the at least one processor,
 calculating a washing time based on the obtained target heating temperature; and 
 obtaining a starting time of the washing course based on the calculated washing time and the reservation ending time, 
   wherein the proceeding with the washing course further comprises:
 controlling the driving device to proceed with the washing course at the obtained starting time. 
   
     
     
         14 . The controlling method of  claim 11 , wherein the washing machine further includes a hot water supply device that heats water and supplied the heated water to the drum, and the controlling method further includes:
 with the at least one processor,
 based on the washing course including at least one of a washing cycle or a rinsing cycle, controlling the hot water supply device so that heated water corresponding to the obtained target heating temperature is supplied to the drum in the at least one of the washing cycle or the rinsing cycle. 
   
     
     
         15 . The controlling method of  claim 11 , wherein the washing machine further includes a heat pump system including a compressor to compress a refrigerant and a condenser to condense the refrigerant, and to provide air to inside of the drum, and a heater to heat air to be provided to the inside of the drum, and the proceeding with washing further includes:
 with the at least one processor,
 based on the washing course including a drying cycle, controlling at least one of a heat pump system or a heater based on an obtained target heating temperature of the drying cycle.