# US 2017/0284010 A1 · Clean water wshing function control method of washing machine > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0284010 A1 - Document ID: US20170284010A1 - Status: Published application - Kind: A1 - Application number: 15/507,646 - Filed: 2015-09-18 - Published: 2017-10-05 - Earliest claimed: 2014-09-22 - Assignees: Qingdao Haier Smart Technology R&D Co., Ltd. - Applicants: Qingdao Haier Smart Technology R&D Co., Ltd. - Inventors: Jingjing ZHANG; Chunxu WANG; Shilong HAO; Yimin LI; Chunfeng LAO - Web page: https://patentgrep.com/patent/US20170284010A1 ## CPC - D06F 34/28: Arrangements for programme selection, e.g. control panels therefor; Arrangements for indicating programme parameters, e.g. the selected programme or its progress - D06F 39/20: Arrangements for water recovery - Y02B 40/00: Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers - D06F: LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract A clean-water-washing function control method of a washing machine, the method comprising: step A: receiving a selection instruction of a laundry process; step B: enabling or disabling selection of a clean-water-washing function of the washing machine according to the selection instruction. A user at self-select the laundry process and decide whether to use the water-washing function, so that the control method not only helps guide the user in choosing to wash clothing in a water saving manner, but can also wash the clothing effectively, and protect the clothing and a recycled water filtration system. Moreover, an autonomous and intelligent washing environment is created for the user. ## Claims ### Claim 1 A clean-water-washing function control method of a washing machine, the method comprising: step A: receiving a selection instruction of a laundry process; and step B: enabling or disabling selection of a clean-water-washing function of the washing machine according to the selection instruction. ### Claim 2 (depends on 1) The control method of claim 1, wherein the selection instruction corresponds to information about the type of clothing. ### Claim 3 (depends on 2) The control method according to claim 2, further comprising: step C: determining a laundry sub-process according to whether the clean-water-washing function of the washing machine is selected; and step D: receiving an execution operating instruction to execute the laundry operation in accordance with the determined laundry sub-process. ### Claim 4 (depends on 3) The control method according to claim 3, wherein said step C further comprises: judging whether or not the selection of the clean-water-washing function is enabled, and if the selection of the clean-water-washing function is disabled, or if the selection of the clean-water-washing function is enabled and an instruction for selecting the clean-water-washing function is not received, determining that the laundry sub-process is a first laundry sub-process executed by default; and if the selection of the clean-water-washing function is enabled and an instruction for selecting the clean-water-washing function is received, determining that the laundry sub-process is a second laundry sub-process having the clean-water-washing function. ### Claim 5 (depends on 4) The control method according to claim 4, wherein the second laundry sub-process comprises a recycled water rinsing stage for rinsing the clothing in a washing tub of the washing machine with rinsing water, and in the recycled water rinsing step of the recycled water rinsing stage, the rinsing water in the washing tub flows into a recycled water filtration system of the washing machine and flows back into the washing tub after filtration in the recycled water filtration system. ### Claim 6 (depends on 5) The control method according to claim 5, wherein the second laundry sub-process further comprises: a washing stage executed prior to the recycled water rinsing stage and a dewatering stage executed after the recycled water rinsing stage; wherein the washing stage comprises: a washing water injection step of supplying water from a water intake pipe of the washing machine to provide washing water for the washing stage; a washing step of washing the clothing in the washing tub with a detergent and the washing water; and a washing dewatering step of dewatering the clothing in the washing tub, is the recycled water rinsing stage comprises: a rinsing water injection step of supplying water from the water intake pipe to provide rinsing water for the recycled water rinsing stage; a recycled water rinsing step; and a rinsing dewatering step of dewatering e clothing in the washing tub, and the dewatering stage is used to spin-dry the clothing in the washing tub. ### Claim 7 (depends on 4) The control method according to claim 4, wherein the first laundry sub-process comprises at least one normal rinsing stage executed consecutively, each of which is used to rinse the clothing in the washing tub of the washing machine with the rinsing water, and in a normal rinsing step of each of the normal rinsing stages, the recycled water filtration system of the washing machine is in a stop state. ### Claim 8 (depends on 2) The control method according to claim 2, wherein when the type of the clothing is cotton, a chemical fiber, a compound or undergarment, the selection of the clean-water-washing function is enabled, where it is determined that the type of the clothing is a compound when a plurality of types of clothing are simultaneously placed in the washing tub, or it is determined that the type of the clothing made of multiple materials is a compound. ### Claim 9 (depends on 2) The control method according to claim 2, wherein when the type of the clothing is a curtain, the selection of the clean-water-washing function is disabled. ### Claim 10 (depends on 3) The control method according to claim 3, wherein. said step B further comprises: enabling or disabling selection of a special stain function of the washing machine according to the selection instruction; and said step C further comprises: determining a laundry sub-process according to whether the special stain function of the washing machine is selected. ### Claim 11 (depends on 1) The control method according to claim 1, wherein the clean-water-washing function comprises filtering the laundry water discharged from the washing tub of the washing machine and returning the filtered laundry water back to the washing tub for reuse.