Apparatus for and method of controlling water flow in washer

• US 5,442,824 A
• Filed: 10/14/1993
• Issued: 08/22/1995
• Est. Priority Date: 06/19/1993
• Status: Expired due to Fees

• Current Assignee: Goldstar Jewellery LLC
• Original Assignee: Goldstar Jewellery LLC
• Inventors: Kim, Jung H., Lee, Byeong H., Kim, Hyung S., Roh, Young H., Chung, Hae Y.
• Primary Examiner(s): Stinson, Frankie L.
• Application Number:
  US08/136,976
• Time in Patent Office: 677 Days
• Field of Search: 68/12.02, 68/12.16, 68/12.17, 134/560, 134/570, 134/580, 8/159, 8/158
• US Class Current: 8/159
• CPC Class Codes: D06F 2101/00 User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
• CPC Class Codes: D06F 2105/48 Drum speed
• CPC Class Codes: D06F 2105/52 Changing sequence of operational steps; Carrying out additional operational steps; Modifying operational steps, e.g. by extending duration of steps
• CPC Class Codes: D06F 35/006 for washing or rinsing only

Abstract

An apparatus for and a method of controlling a water flow in a washer, capable of generating drive patterns for an agitator by utilizing a branching phenomenon occurring in solutions of a function having one parameter. The method comprises the first step of determining the number of times (N) operating solutions of a function having one parameter until solutions periodically repeated are obtained from the function, an initial value of the function, a parameter of the function determined according to a selected operation mode, the total number of solutions of the function, and the number of times (I) executing drive patterns for a predetermined washing operation time, the second step of inputting the initial value as a variable of the function, inputting the parameter, deriving a solution of the function, based on the inputted initial value and parameter, inputting the solution as the variable of the function,.and repeatedly executing the above operation procedure of this step for the number of times (N), the third step of executing the operation procedure of the second step again, generating a driving pattern, and then repeatedly executing the above procedure of this step for the predetermined total number of solutions, and the fourth step of repeatedly executing the above procedures following the first step for the number of times (I).

Claims

1. A method of controlling a water flow in a washer comprising the steps of:

(a) inputting a parameter (μ

) corresponding to a mode selected by a user;

(b) calculating a function from an initial value (Xo) of a solution of a present function (X=μ

Xo(1-Xo)) and the parameter which has been inputted in step (a) and iteratively calculating a calculated value of the function by inputting the calculated value as a solution of the function until the value of the function is obtained repeatedly at a predetermined period;

(c) repeatedly calculating the value of the function as many times as a predetermined number (I) by inputting said value of the function as a solution of the function and outputting the value of the function; and

(d) outputting a drive pattern of a motor of a washer, corresponding to the value of the function being repeatedly outputted in steps (c).

2. The method of claim 1, wherein a rotation force of said drive pattern of the motor of the washer generated in step (d) is determined by the magnitude of the function value outputted in step (c) and the rotational direction of the drive is determined based on whether said function value outputted in step (c) is an odd-numbered value or an even-numbered value.

3. The method of claim 1, wherein a rotation force of said drive pattern of the motor of the washer is determined by the magnitude of the washer is determined by the magnitude of the function value outputted in step (c) and the rotational direction of the drive pattern is determined based On whether the function value outputted in step (c) is a positive (+) value or a negative (-) value.

4. A method of controlling a water flow in a washer comprising the steps of:

(a) setting an initial value (Xo) of a solution of a function (X=μ

Xo(1-Xo)) and minimum and maximum values of a parameter and selecting a current parameter value as a minimum value;

(b) calculating a value of said function from the initial value and parameter value which have been set in step (a), and iteratively calculating the function value by inputting the calculated value as a solution of the function until the value of the function is obtained repeatedly at a predetermined period;

(c) calculating a value of said function as many times as a predetermined number (I) by inputting said value as a solution of said function and outputting said function value;

(d) repeatedly executing said steps (a), (b) and (c) until the minimum value of the parameter comes to the maximum value thereof by increasing the minimum value of the parameter as much as a predetermined level (Δ

μ

); and

(e) generating a drive pattern of a motor of a washer corresponding to the function values repeatedly outputted in steps (c) and (d).