Method and control unit for carrying out a spin-dry program for a cleaning appliance, and cleaning appliance

Patent metadata

Field	Value
Publication number	US-12428769-B2
Application number	US-202117915423-A
Country	US
Kind code	B2
Filing date	Mar 22, 2021
Priority date	Mar 30, 2020
Publication date	Sep 30, 2025
Grant date	Sep 30, 2025

Abstract

A method for executing a spin program for a cleaning appliance having a rotatable, non-ribbed drum. A first motion signal is supplied which causes a first rotational motion of the drum in a first direction until the drum has reached a first target rotational speed. A second motion signal is supplied that represents a second rotational motion in a second direction until the drum has reached a second target rotational speed greater than the first target rotational speed. Further first and second motion signals are supplied which causes a further first and second rotational motions in the first and second directions until the drum has reached a further first and second target rotational speeds greater than the second and first target rotational speeds, respectively. A third motion signal causes a third rotation of the drum at the predetermined maximum rotational speed in the direction of the preceding rotational motion.

First claim

The invention claimed is:

1. A method for executing a spin program for a cleaning appliance having a rotatable non-ribbed drum for holding the textiles, the method comprising the following steps:
supplying a first motion signal to an interface of a drive of the cleaning appliance, wherein the first motion signal causes a first rotational motion of the drum in a first direction until the drum has reached a first target rotational speed;
supplying a second motion signal to the interface of the drive, wherein the second motion signal represents a second rotational motion of the drum in a second direction opposite to the first direction, until the drum has reached a second target rotational speed greater than the first target rotational speed;
further supplying a further first motion signal to the interface of the drive of the cleaning appliance, wherein the further first motion signal causes a further first rotational motion of the drum in the first direction, until the drum has reached a further first target rotational speed greater than the second target rotational speed of the preceding second rotational motion;
further supplying a further second motion signal to the interface of the drive, wherein the further second motion signal causes a further second rotational motion of the drum in the second direction until the drum has reached a further second target rotational speed greater than the further first target rotational speed of the preceding further first rotational motion;
repeating at least one of the steps of further supplying until the further first target rotational speed or the further second target rotational speed reaches a predetermined maximum rotational speed; and
supplying a third motion signal to the interface of the drive, wherein the third motion signal causes the drum to execute a third rotational motion at the predetermined maximum rotational speed in the direction of the preceding step of repeating at least one of the steps of further supplying.

2. The method according to claim 1 , comprising a step of calculating the maximum rotational speed using a predetermined g-factor, a drum radius value representing a drum radius of the drum, and the gravitational constant.

3. The method according to claim 1 , wherein the second motion signal, the further first motion signal, and the further second motion signal are supplied for a predetermined period of time, wherein the predetermined period of time corresponds to half a period duration of a rocking frequency.

4. The method according to claim 3 , wherein the third motion signal is supplied for a third period of time, wherein the third period of time is a multiple of the period duration.

5. The method according to claim 3 , comprising a step of determining the rocking frequency using the drum radius value.

6. The method according to claim 5 , wherein, in the step of determining, the rocking frequency is determined as a quotient of the square root from a quotient of the gravitational constant and the drum radius value as well as the doubled number Pi.

7. The method according to claim 5 , wherein, in the step of determining, the rocking frequency is increased by a predetermined factor.

8. The method according to claim 1 , wherein the first motion signal, the second motion signal, the further first motion signal, and the further second motion signal cause a constant acceleration of the drum.

9. The method according to claim 8 , wherein the first motion signal causes a first acceleration of the drum, the second motion signal causes a second acceleration of the drum greater than the first acceleration, the further first motion signal causes a further first acceleration of the drum greater than the second acceleration, and the further second motion signal causes a further second acceleration greater than the further first acceleration.

10. The method according to claim 1 , wherein, in the step of repeating, the maximum rotational speed is reached in a third repeat process.

11. A control unit configured to execute the steps of the method according to claim 1 in corresponding units.

12. A non-transitory computer-readable medium having program code for executing the method according to claim 1 .

13. A cleaning appliance for cleaning textiles, comprising:
a rotatable non-ribbed drum for holding the textiles;
a drive for causing the drum to execute a rotational motion; and
a control unit according to claim 11 .

Assignees

• Miele & Cie

Inventors

• Zielke Marcel
• Kortenjann Magnus
• Sieding Dirk
• Drücker Markus
• Fechtel Benedikt
• Lasner Steffen
• Bicker Rainer
• Femmer Uwe

Classifications

• D06F37/38

  in opposite directions · CPC title

• D06F37/04

  adapted for rotation or oscillation about a horizontal or inclined axis · CPC title

• D06F23/02

  and rotating or oscillating about a horizontal axis · CPC title

• D06F33/40

  of centrifugal separation of water from the laundry · CPC title

• D06F34/28

  Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress · CPC title