Abstract: Disclosed is an outer rotor type motor of a washing machine, in which a rotor is more simply installed. The present invention includes a stator having an outer circumference on which a coil is wound, a rotor provided to leave a predetermined interval from an outside of the stator, the rotor rotating when a current is applied to the coil, and a frame having a fixing means for fixing the rotor wherein the fixing means is built in one body of an inner circumference of the frame.

Abstract: A washing machine is provided with a noise reduction and control system which can sense out of balance and pump starvation conditions. More specifically, a microphone is used in connection with an electronic controller to sense an unbalance or pump starvation condition and alter a washing operation of the machine to counteract the unbalance or pump starvation condition. Additionally, the microphone and controller can respond to voice commands to establish the washing operation for the washing machine.

Abstract: A washing machine control method and a washing machine using the same are provided, by which the performance of a dewatering step is unimpeded and vibration and noise are prevented. The method includes steps of executing a dewatering step; accelerating a motor to rotate a drum, according to a predetermined rate, in response to the dewatering execution step; detecting, if the predetermined rate exceeds a first value but is less than a second value, whether a state of vibration exists with respect to the drum rotated according to the predetermined rate; and stopping the motor if the detected state of vibration exists. The method preferably includes steps of detecting an eccentricity value with respect to the drum rotated according to the predetermined rate; and comparing the detected eccentricity value to a reference eccentricity value stored in a lookup table.

Abstract: A washing machine having a dual-purpose sensor capable of detecting a degree of vibration generated during a dewatering step as well as measuring detergent levels present in the water. The washing machine having a sensor unit installed with respect to an outer tub for holding water. The washing machine includes a microcomputer having an input port receiving an applied voltage, the input port electrically connected to a supply voltage; first and second electrodes, installed so as to be submerged in the water of the outer tub, wherein the first electrode is electrically connected to the supply voltage and the second electrode is electrically connected to ground, to thereby generate the applied voltage for input to the input port of the microcomputer; a spherical conductor disposed adjacent to the electrodes; and a support for supporting the spherical conductor.

Abstract: A washing machine motor drive device drives a motor using an inverter circuit, which implements a constant torque control through a change in the torque-revolution speed characteristic of the motor. This facilitates an easy control of braking torque (negative torque), thereby providing a maximized braking torque. An easy control of regenerative energy is also provided, and back electromotive force is consumed by the internal resistance of the motor. Practically described, DC power of a rectifier circuit connected to an alternating current source is converted by an inverter circuit into AC power for driving the motor for operating an agitator or a washing/spinning tub. Motor rotor position is detected by rotor position detector, motor current is detected by current detector, and a control device controls the inverter circuit for resolving the motor current into a current component corresponding to magnetic flux and a current component corresponding to torque.

Abstract: A washing machine incorporates a drain pump powered by an electric motor and a variable frequency variable duty cycle pulse width modulated inverter the output of which supplies power to the electric motor, a water level detection means for detecting low washing machine water levels, and a controller which in response to the water level detection means decreases the frequency of the inverter at low washing machine water levels to thereby reduce the effects of ventilation. The motor is driven with the output of the variable frequency pulse width modulated inverter, and the frequency of said inverter is decreased at low washing machine water levels to reduce the effects of ventilation.

Abstract: A direct current power supply for a washing appliance powered is disclosed. The power supply includes a switch mode power supply which supplies direct current at a low voltage level from a high direct voltage supply and a pair of commutation devices as a buck converter, an active switching device connected across the input of one of the commutation devices, a latching circuit which controls the active switching device to cause the commutation device to switch off to disable the buck converter, and a push button switch for disabling the latching circuit to cause the active switching device to switch off to allow the one commutation switch to function and thereby enable the buck converter.

Abstract: A washing machine and a method of changing system data therein that can grasp causes such as trouble of the product itself, problems on installation, problems on the regional characteristics, living pattern change of a user, etc., and change/replace a pre-stored program to/by a wash-related program that can solve the problems. The washing machine includes an outer tank, an inner tank, a load section, a microcomputer for controlling drive of the load section and reading an operation state of the load section, a key input section, a display section, an interface section for sending/receiving wash-related data to/from an external device, and a memory for enabling data read/write and storing the program or data received from the external device.

Abstract: Methods and systems are disclosed for detecting mass transfer in a rotating device or rotating system, such as a washing machine or dishwasher. Mass may be transferred from the stationary member to the rotating member. The transfer of the mass from the stationary member to the rotating member may be detected utilizing a sensor. A controller linked to the rotating system thereafter may receive a signal that the transfer of mass has been detected, in response to detecting the transfer of mass, thereby permitting the controller to compensate future mass placements in the rotating system according to measured latencies. The mass may comprise a fluid. The fluid itself may be conductive. A gap is generally configured between the stationary member and the rotating member. At least one wire connected to the sensor may be inserted into a stream of such fluid that is created when injectors are activated.

Abstract: A drum type washing machine includes a rotating drum having a rotating axis in a substantially horizontal direction and sustained rotatably in a tub. The washing machine further includes a motor for driving the rotating drum, a water supply for supplying water into the tub, and a controller for washing, rinsing and liquid-extracting by controlling workings of the motor. The controller of the washing machine washes a laundry by pouring detergent bubbles in the washing process.

Abstract: Object of the present invention lies on improving a system stability by reducing an allowable eccentricity of laundry below a preset value when a spinning speed reaches to a maximum even if a voltage higher than a rated voltage is applied, by varying a maximum limit of a lead angle with a voltage applied to a drum type washing machine. For achieving the object of the present invention, in a method for controlling a spinning speed of the present invention, a maximum value of a lead angle is set to vary with an applied voltage after detection of the applied voltage.

Abstract: An apparatus, method and system of wash action control for an automatic washing machine. A manually operable user interface allows selection from between a plurality of discrete agitation speed selections which comprise at least a continuous speed agitation mode for a given agitation period during a wash cycle and an intermittent speed agitation mode for at least a part of a given agitation period. The intermittent speed agitation mode automatically varies agitation speed between at least two sub-periods of the given agitation period. The variation in agitation speed can be between a faster and a slower speed or a certain speed and no agitation.

Abstract: The object of the present invention lies on providing a washing machine with a device for connection to an outside required for connecting to wire/wireless communication and Internet technologies. The washing machine includes a controller fitted to a body for washing control, and a device fitted at one side of the body for exchange washing related data between the controller and an external device.

Abstract: Device for controlling a motor in a washing machine and a method for controlling a process of a washing machine by using the same, the device including a motor, a power source part for supplying a voltage to the motor, a plurality of torque varying parts parallel to each other and electrically connected to the motor for varying a rotation torque of the motor, a plurality of switching part connected to the torque varying parts respectively and electrically connected to the power source part, a driving part for switching the switching parts, and a controlling part for controlling the driving part so as to vary the rotation torque of the motor according to a mode of user's selection.

Abstract: A washing machine (10) includes a one part sensor (60, 70) mounted to detect passage of a component normally associated with, and rotatable with, the drive shaft (25) of the machine (10) to detect speed of rotation of the shaft (25) and, in turn, speed of rotation of the clothes basket (22) without the need for a second, additional component not normally required for proper rotational operation of basket (22).

Abstract: A control system for measuring load imbalance in a laundry washing machine having a non-vertical axis of drum rotation, and then using the value obtained for the load imbalance to calculate a maximum permissible angular velocity for the drum during the water extraction cycle.

Abstract: A power controller for an appliance, especially a washing machine, is operative to place the appliance into a hyperspin mode. When in the hyperspin mode, the washing machine rotates its washing basket at a higher speed in relation to a traditional spin mode for the washing machine. In order to prevent damage to the washing machine that could result from spinning heavier, unbalanced loads at higher speeds (i.e. hyperspin speeds), a controller detects vibration of the washing machine basket while the items are being spun at a lower speed (i.e. at the speed of the traditional spin mode). If the washing basket vibration is less than a predetermined threshold vibration value, the washing machine controller operates to cause the washing machine to rotate its washing basket at a higher speed. This results in removal of more water from the clothes being spun dried.

Abstract: In a washing machine with a drive apparatus and a suds container on whose rear wall the drive apparatus is disposed, an isolation layer is provided between stator cores of the motor and a stator supporting part or a supporting element to suppress discharge currents that occur during high-frequency conversion in the motor.

Abstract: An apparatus for sensing a laundry amount in a washing machine includes: a rectifier; an inverter receiving a DC voltage and converting it to a three-phase AC voltage, a BLDC motor driven by the three-phase AC voltage from the inverter, a rotor position detector detecting the position of a rotor of the BLDC motor; a microcomputer outputting a control signal for controlling a switching operation of the inverter according to the position detect signal of the rotor position detector and a current control signal; a gate driving unit receiving the control signal from the microcomputer and outputting a gate drive signal to the inverter; a torque command generator generating a torque command signal corresponding to a speed set by a user; a torque controller operating the torque command signal from the torque command generator and outputting a q-axis current command signal; a current controller outputting the current control signal according to the q-axis current command signal from the torque controller and a d-axis

Abstract: A method and device for driving a clothes washing machine motor at a predetermined speed is presented. The washing machine motor, which may be an AC induction motor, is powered by a DC to AC inverter that includes a DC bus. The DC bus current is measured and the inverter output frequency is adjusted in response to the DC bus current measurement. In exemplary embodiments, measuring the DC bus current includes measuring the voltage drop across a resistor coupled to the DC bus. The frequency adjustment may be calculated by multiplying the DC bus current by a compensation factor to calculate a frequency adjustment value. Alternatively, frequency adjustment values may be stored in a look-up table, and the measured DC bus current is used to index the look-up table.

Abstract: A control system for measuring load imbalance in a laundry washing machine having a non-vertical axis of drum rotation, and then using the value obtained for the load imbalance to calculate a maximum permissible angular velocity for the drum during the water extraction cycle.

Abstract: The invention relates to a laundry treatment apparatus like washing machines, laundry dryers or a washer-dryers with a rotatably mounted drum (6) with an at least approximately horizontal axle and with a drive motor (10) structured as a synchronous motor (10) energized by permanent magnets arranged on the drum (6) shaft, the stator (16) of the motor (10) being provided with a winding (18) which is energized by a converter. In order to optimize the motor in such machines in respect of energy consumption, noise development and costs it is proposed to design the winding (18) as a single pole winding, whereby the number of stator poles (27) and of the magnet poles (23) is different, and to utilize a frequency converter (104) as the converter the output voltage of which being set such the continuous currents are generated in all winding strands.

Abstract: A full-automatic washing machine includes a rotatable tub for accommodating laundry together with water, an agitator provided in the rotatable tub for agitating the water or the laundry, a variable-speed washing motor for directly driving the agitator, and a variable-speed dehydrating motor for directly driving the rotatable tub.