Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
  • D06F34/14—Arrangements for detecting or measuring specific parameters
  • D06F34/18—Condition of the laundry, e.g. nature or weight
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F33/00—Control of operations performed in washing machines or washer-dryers 
  • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
  • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
  • D06F33/36—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of washing
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
  • D06F2103/02—Characteristics of laundry or load
  • D06F2103/04—Quantity, e.g. weight or variation of weight
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
  • D06F2103/38—Time, e.g. duration
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
  • D06F2103/44—Current or voltage
  • D06F2103/46—Current or voltage of the motor driving the drum
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
  • D06F2105/42—Detergent or additive supply

Definitions

• the invention relates to a program control for washing machines according to the Preamble of claim 1.
• DE 44 31 846 A1 describes a method for control and / or regulation a washing machine or dryer, in which the loading of the Laundry drum is measured by the drum first with a constant Speed and on the other hand is operated with constant angular acceleration and the torques to be applied by the drive motor for this purpose become. This measurement is used to determine the imbalance of the drum to determine the maximum possible speed in spin operation.
• the power consumption of the electric motor can be reduced during normal washing operation or also when the engine is ramped up to a predetermined speed or be detected while maintaining a predetermined speed.
• the determination the power consumption takes place by measuring the motor current, the motor speed and the electrical voltage applied to the motor, the power consumption from the power grid or from the electronics for motor control Power.
• the power consumption of the electric motor certainly. Does the drive electronics of the motor measure the mains current consumption, such as This is the case, for example, for drives with a voltage intermediate circuit and actively controlled Current consumption (PFC) is the case, a measurement of the electrical power consumption of this electronics from the power grid. Measures that Motor electronics does not use the mains current, a measurement is made of the Electronics power delivered to the engine. The one measured in this way The value of the power consumption of the electric motor is used for different drum levels for example compared values stored in the program control and so determines the loading of the laundry drum.
• PFC actively controlled Current consumption
• the power consumption of the electric motor is also saved via a drum-specific characteristic also determines the mechanical performance, with which the laundry in the drum is loaded. Because of inevitable Power losses are only a part of the absorbed by the engine Power available as mechanical power acting on the laundry. If the power consumption from the power grid is measured, the power losses, which by the engine electronics, the electric motor, the transmission on the drum and the water in the drum, be taken into account. Will that from the engine electronics to the electric motor power output measured, the power loss of the motor electronics not be included. In both cases, the amount acting on the laundry is mechanical power about 1/5 of the originally consumed power. The power losses that occur are taken into account in the drum-specific characteristic.
• the program control now takes into account the loading of the laundry drum and the mechanical performance or washing performance acting on the laundry and designs the sequence of the washing program such that the laundry or a predetermined one
• the amount of laundry regardless of the drum load is always about the same, predeterminable mechanical performance or washing performance becomes. This can be done throughout the washing process the power consumption of the electric motor is measured, from which the laundry acting mechanical performance or washing performance is determined and so long is washed until by integrating this mechanical performance or washing performance over the entire washing process determined in total on the Mechanical energy transferred to laundry or laundry work one for a satisfactory one Washing result required value reached. Will only be at the beginning of the Washing program the power consumption of the electric motor is measured is off this calculates the necessary washing time. At low power consumption of the Electric motor, d. H.
• the power consumption of the electric motor is reduced. This will make it unnecessary, excessive prevents mechanical stress on the laundry. At the same time remains ensures that the laundry always with the desired mechanical energy or washing performance is applied to ensure a satisfactory washing result, even if the laundry drum is fully loaded.
• the amount of used can Water and / or detergent adapted to the actual conditions be, which saves water and detergent, however also results from energy and time.
• a saving in water is preferably achieved in that the water level in the laundry drum after reaching a certain minimum level is increased until the power consumption of the electric motor reaches a predetermined wen.
• This procedure is based on the fact that the power consumption of the electric motor depends not only on the amount of laundry, but also depends on the amount of water in the laundry drum.
• a laundry load e.g. with half a load
• the power consumption of the electric motor already high due to the load, which is why the water does not exceed the Minimum fill level is filled in, but washed with the minimum fill quantity becomes what is sufficient in this case of partial loading.
• the minimum level is exceeded addition, water is supplied until the electric motor reaches the predetermined power consumption reached. This ensures that with a full drum load, where a larger amount of wash water is required, even with more water is washed.
• An automatic detergent dosing device saves on detergent preferably achieved in that the laundry drum at Partial load less detergent is supplied.
• the washing mechanism has water temperatures (up to 60 ° Celsius) compared to Heating a noticeable part of the total energy consumption.
• the Energy saving described above by shortening the washing program and / or reducing the power consumption of the electric motor when partially loaded the laundry drum to a noticeable saving of the total energy required.
• a saving of time is preferably achieved in that with a partial load the washing drum shortens the washing phases and / or the rinsing phases or then be canceled when the laundry has sufficient mechanical energy was fed.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Control Of Washing Machine And Dryer (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=7885737

Family Applications (1)

Country Status (4)

Cited By (1)

Families Citing this family (5)

Citations (5)

• 1998
  • 1998-10-27 DE DE19849403A patent/DE19849403A1/de not_active Withdrawn
• 1999
  • 1999-10-02 AT AT99119581T patent/ATE257871T1/de not_active IP Right Cessation
  • 1999-10-02 EP EP99119581A patent/EP0997569B1/fr not_active Expired - Lifetime
  • 1999-10-02 ES ES99119581T patent/ES2214787T3/es not_active Expired - Lifetime
  • 1999-10-02 DE DE59908294T patent/DE59908294D1/de not_active Expired - Lifetime

Patent Citations (5)

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