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Control device and method for a laundry care device

A technology for control devices and nursing appliances, which is applied in the direction of washing machine control devices, washing devices, control systems, etc., and can solve problems such as energy consumption

Pending Publication Date: 2020-07-24
BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage here is that, with a practically low load torque, the torque-generating maximum current I q，max to apply maximum torque and thus dissipate unnecessary energy when the BDLC motor starts

Method used

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  • Control device and method for a laundry care device
  • Control device and method for a laundry care device
  • Control device and method for a laundry care device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] figure 1 A schematic block diagram of a control device 100 for operating a drive motor 120 of a laundry care device is shown. According to one embodiment, the drive motor is a three-phase motor with a generator-less rotational speed regulation, in particular a DC motor in the form of a brushless permanent magnet motor, which is also known as a BLDC motor or a PMSM motor. However, the control device 100 is figure 1 The functions, modules, blocks, etc. shown in may be fully or partially implemented as hardware. However, the functions, modules, blocks etc. may also be at least partially implemented as software, eg corresponding algorithms.

[0028] In addition, the control device 100 has a ramp signal generator or starting generator 101, a PI controller 102 for speed regulation, a PI controller 103 for current regulation, a Park inverse converter 104, a space vector modulator 105 (“SpaceVector Modulator"), inverter 106, Clarke transformer 107, Park transformer 108, EMK ...

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PUM

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Abstract

The invention relates to a control device (100) for operating a drive motor (120), in particular a BLDC drive motor, on the basis of a torque-generating current Iq in order to rotate a rotatably mounted washing drum of a laundry care appliance in accordance with a laundry care program carried out during said operation. The laundry care procedure includes at least one first reverse cycle and a second reverse cycle, the first reverse cycle and the second reverse cycle including a control phase and an adjustment phase of rotation of the washing drum, respectively. The control device (100) is designed to detect a maximum value of the torque-generating current Iq during the control phase (CL) of the first reverse cycle, and to set a reference value for the torque-generating current Iq in the control phase (OL) of the second reverse cycle, said reference value being based on the detected maximum value.

Description

technical field [0001] The invention relates to a control device for a drive motor of a laundry care appliance and a corresponding method. Within the scope of the invention, the laundry care appliance is in particular a washing machine, but can also be, for example, a machine for rinsing and / or soaking laundry. The additional functionality can also be integrated in the washing machine. Background technique [0002] Due to their advantageous properties, direct current motors in the form of brushless permanent magnet motors, also known as BLDC motors or PMSM motors, are frequently used for rotating wash drums of washing liquid care appliances. [0003] When starting a BLDC motor from a standstill to a desired rotational speed, the actual rotational speed of the electric motor can usually be determined with sufficient accuracy first starting from a minimum rotational speed, for example by means of a position sensor and a speed sensor. Thus, the BLDC motor of the laundry care ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F33/36D06F33/46D06F105/46
CPCH02P1/00D06F33/32
Inventor H·G·阿尔巴拉克P·德克特J·斯格里派克
Owner BSH BOSCH & SIEMENS HAUSGERAETE GMBH