CN105274775A - Imbalance detection washing machine and imbalance detection method - Google Patents
Imbalance detection washing machine and imbalance detection method Download PDFInfo
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- CN105274775A CN105274775A CN201410267444.1A CN201410267444A CN105274775A CN 105274775 A CN105274775 A CN 105274775A CN 201410267444 A CN201410267444 A CN 201410267444A CN 105274775 A CN105274775 A CN 105274775A
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Abstract
The invention provides an imbalance detection washing machine comprising a main control module and function control modules respectively connected with corresponding loads; the function control modules comprise a sensor module (13); the sensor module (13) and the main control module are mutually independently arranged; the main control module and the sensor module (13) are respectively connected with a data bus and a power bus; the sensor module load corresponding to sensor module (11) is an accelerometer/six-axis sensor/nine axis sensor used for washing machine imbalance detection. The washing machine comprises independently arranged sensor modules, so modularization production and washing machine computer board insulation can be realized; the washing machine and method can real time actively detect and control imbalance of the washing machine.
Description
Technical field
The present invention relates to washing machine field, particularly, relate to a kind of washing machine and unbalance detection of imbalance detection.
Background technology
Washing machine is as the daily household electrical appliance of one, and people freed from the work of laundry, thus enjoy users to like, it mainly comprises casing, outer barrel, interior bucket, impeller, motor and control panel; Impeller is positioned at bucket, and interior bucket is arranged in outer barrel, and outer barrel hangs on casing by suspension rod, and control panel controls motor to carry out washing and dewatering.When washing completes, washing machine dewaters, existing full-automatic impeller type washing machine dewatering type, is that clothing moves under the drive of interior bucket, reaches dehydrating effect by centrifugal action, when clothing skewness, easily vibrate during dehydration, easily hit bucket, be shifted time serious, to washing machine quiet operation degree and motor, the mechanical structure life-span impacts.
Existing automatic washing machine, the mode triggering shutdown switch when dewatering uneven by clashing into crash bar is avoided hitting bucket, but, this mode also exists following shortcoming: first, when offset is excessive, due to effect of inertia, when triggering shutdown switch, also bucket can be hit; Secondly, crash bar is fixedly mounted on a position, also may cause and hit bucket but the phenomenon generation not triggering shutdown switch, cause cannot detecting, avoiding vibration; Finally, because this shock randomness is stronger, outer barrel bias may be there is but do not strike this situation of safety switch, this will produce " misleading ", make washing machine can continue dehydration, constant impingement casing, finally makes casing of washing machine displacement occur or damage phenomenon, reduces the service life of washing machine.
Existing part washing machine adopts photoelectric sensor to measure rotating speed, calculates acceleration, reaches control machine balance object, but accurately cannot measure, control, during some offset, except the dehydration initial velocity stage easily hits except bucket, need repeatedly to calculate and attempt the dehydration of Suitable dehydration curve.
Therefore, how to realize washing machine and carry out the eccentricity detecting of Active and Real-time when dewatering, and carry out real-time control according to testing result and become a urgent problem.
Summary of the invention
The invention provides the washing machine that a kind of imbalance detects, this washing machine has the independent sensor assembly arranged, not only can reach modularized production, the object of computer board of washing machine is installed, and can realize detecting to the imbalance of washing machine the detection and control of carrying out active in real time.
Particularly, present invention employs following technical scheme:
The uneven washing machine detected, comprise, main control module and functional control module, each functional control module is connected with corresponding load respectively; It is characterized in that: described functional control module comprises sensor assembly; Described sensor assembly and the separate setting of main control module; Main control module, sensor assembly are connected with power bus with data/address bus respectively; The sensor assembly load that described sensor assembly is corresponding is the acceleration transducer detected for washing machine imbalance, or six axle sensors, or nine axle sensors.
Further, six described axle sensors comprise 3-axis acceleration device and three-axis gyroscope:
The 3-axis acceleration device sensing linear acceleration of outer barrel and angle of inclination, can the amplitude of the linear and acceleration of gravity of induction bonded and direction;
The angular velocity of rotation of three-axis gyroscope sensing outer barrel, follows the trail of outer barrel motion direction and spinning movement;
Nine described axle sensors comprise 3-axis acceleration device, three-axis gyroscope and three axle magnetometers, and three described axle magnetometers can sense the direction of motion of outer barrel.
Further, described sensor assembly load is arranged on outer barrel bottom, or is arranged on outer barrel sidewall, or is arranged on suspension rod place; Described sensor assembly is arranged in sensor assembly load or near sensor assembly load place.
Further, described functional control module at least also comprises motor control module, water inlet control module and draining control module; At least one and the separate setting of main control module in described functional control module; Main control module, each functional control module independently arranged are connected with power bus with data/address bus respectively; Preferably, all described functional control module separate settings with main control module respectively.
Further: described functional control module also comprises: door lock control module, the combination of drying control module, automatically throwing in one of control module, heating control module or at least two.
Washing machine of the present invention have employed sensor assembly to realize monitors the unbalance condition in laundry machine dehydration process, controls accordingly according to the result of monitoring simultaneously.Due to adding of sensor assembly, need to improve accordingly the control circuit of washing machine and annexation, the invention the main control module of sensor assembly independent of washing machine is designed, only need main control module sensor assembly being accessed washing machine, carry out corresponding software simultaneously and improve and can realize.Further, the washing machine providing a kind of multiple functional module independent setting of the invention, by motor control module, water inlet control module and draining control module independently in main control module, even by door lock control module, dry control module, automatically throw in control module, heating control module and also arrange independent of main control module.
Adopt technique scheme, the present invention is compared with the advantage of prior art: by being connected with each functional control module respectively with data/address bus through power bus by the computer board being provided with main control module, makes the computer board control circuit board of washing machine achieve modular formation pattern; Meanwhile, be arranged in corresponding load or near corresponding load place through each functional control module, the circuit between load and control module shortened, makes the line construction of washing machine internal be simplified, improve the transfer rate of information between load and control module.More particularly, by corresponding for unequally loaded control module is set to standalone module, when later stage module damage, only need to replace respective modules and just can realize washing machine maintenance dimension, simplify maintenance process, reduce maintenance cost.Meanwhile, structure of the present invention is simple, Be very effective, is suitable for promoting the use of.
Meanwhile, the invention provides a kind of unbalance detection of above-mentioned laundry, comprise the steps:
Step S1, runs dehydration sequential, performs offset and detects examination dehydration action,
Step S2, sensor assembly performs offset and detects the eccentric situation that action detects machine in real time, initial setting water desorption curve;
Step S3, perform low speed dehydration action according to water desorption curve, sensor assembly detects low speed offset in real time;
Step S4, judges whether the low speed offset detected exceedes limit value;
Step S5, if the determination result is YES, then performs low speed offset corrective action, if judged result is no, enters next step;
Step S6, perform high speed dewatering action, sensor assembly detects high speed offset in real time;
Step S7, judges whether the high speed offset of high speed dewatering action exceedes limit value;
Step S8, if the determination result is YES, performs the action of high speed run-out modification, if judged result is no, with high speed dewatering release.
Further, the low speed offset corrective action in described step S5 comprises the following steps:
Step S51, low speed dehydration action stops;
Step S52, revises water desorption curve;
Step S53, performs low speed dehydration action according to revised water desorption curve, turns back to step S3.
Further, in described step S5, low speed offset corrective action performs N time at most, and described N meets: 0 < N≤10.
Further, when low speed offset corrective action performs number of times more than N time in described step S5, then following steps are performed:
Step S54, performs water filling washing corrective action;
Step S55, performs draining action;
Step S56, turns back to step S1.
Further, described step S54 performs M time at most, meets for described M time: 0 < M≤10, if the number of times that step S54 performs is greater than M, then performs actuation of an alarm.
Further, the high speed run-out modification action in described step S8 comprises the following steps:
Step S81, execution speed, acceleration correction action, sensor assembly detects high speed offset in real time;
Step S82, judges whether high speed offset exceedes limit value;
Step S83, if the determination result is YES, then performs deceleration run-out modification, enters next step, if judged result is no, with high speed dewatering release;
Step S84, with comparatively low speed dehydration release.
Washing machine unbalance detection of the present invention adopts six axle sensors to achieve the eccentricity detecting of washing machine being carried out to Active and Real-time, therefore, more accurately and timely, meanwhile, the control module that the real-time detection of sensor contributes to washing machine carries out run-out modification according to testing result to testing result in time.So detection method of the present invention is more accurate, improves dewatering efficiency, avoids washing machine and " hitting bucket " phenomenon occurs, extend the service life of washing machine.
Particularly, the present invention has following technique effect:
1), after the present invention enters dehydration sequential, first carry out offset and detect examination dehydration action, when this action is carried out, sensor assembly carries out eccentricity detecting in real time, and the control module of washing machine is according to the initial water desorption curve of eccentricity detecting result initial setting.Therefore, initial water desorption curve of the present invention considers eccentric situation during washing machine initial, more tallies with the actual situation, and greatly reduces the probability that formal dehydration is eccentric.
2) dehydration is divided into low speed water smoking and high speed dewatering stage by the present invention, all eccentricity detecting is carried out in low speed water smoking and high speed dewatering stage, and the high speed dewatering stage can not be entered when the offset in low speed water smoking is not revised, therefore, eccentric detection method of the present invention is more accurate, more timely, effectively can avoid washing machine because of eccentric and cause damage.
3) the present invention mainly carries out two kinds of run-out modification modes in the low speed water smoking, and one stops low speed dehydration, and then by sensor assembly correction water desorption curve, the startup low speed water smoking carries out run-out modification again; Another kind be when the first run-out modification mode repeatedly revise invalid after, adopt water filling washing revise, then by water filling discharge reenter dehydration procedure.Therefore, run-out modification of the present invention adopts different run-out modification modes according to different stages and different eccentric results, makes run-out modification of the present invention more effective.
4) run-out modification of the present invention mainly concentrates on the low speed water smoking, the high speed dewatering stage is directly entered without acceptance of persons when the low speed water smoking, then the high speed dewatering stage can not be entered when the offset in low speed water smoking is not revised, which ensure that the high speed dewatering stage carries out smoothly, safer.
5) the high speed dewatering stage of the present invention carries out eccentricity detecting simultaneously, high speed run-out modification is carried out when occurring that offset is excessive, because the offset in low speed water smoking reaches requirement, so the high speed run-out modification in high speed dewatering stage is comparatively simple, operation mainly through revising acceleration and speed realizes, and adopts the mode reducing dewatering speed to complete dehydration when this modification method can not realize correction effect.Therefore, the high speed dewatering stage of the present invention can the carrying out of safety and precise, effectively avoids the high speed dewatering stage to occur the possibility that offset is excessive, ensures that dehydration is carried out smoothly.
6) the present invention adopts the offset of six axle sensors to washing machine to detect, achieve the detection of the Active and Real-time to washing machine offset, and the 3-axis acceleration sensor sense linear acceleration of six axle sensors and angle of inclination, the three-axis gyroscope perception anglec of rotation, therefore, the present invention adopt six axle sensors not only can be real-time the linear acceleration to outer barrel and angle of inclination detect, but also can avoid to greatest extent because interior bucket rotates the anglec of rotation brought, make the result of detection of the present invention more accurate.
Accompanying drawing explanation
Fig. 1 structural representation of the present invention;
Fig. 2 power bus of the present invention connection diagram;
Fig. 3 data/address bus connection diagram of the present invention;
Fig. 4 program control flow chart of the present invention;
Fig. 5 water desorption curve figure of the present invention;
Fig. 6 sensor assembly composition of the present invention schematic diagram;
The composition schematic diagram of Fig. 7 nine axle sensors of the present invention;
Fig. 8 offset test position of the present invention schematic diagram;
Fig. 9 casing angle of inclination test of the present invention schematic diagram.
Number in the figure illustrates: 1-main control module, 2-power bus, 3-data/address bus, 4-water inlet control module, 5-draining control module, 6-door lock control module, 7-dry control module, 8-automatically throw in control module, 9-heating control module, 10-motor control module, 11-control panel, 12-power supply adaptor, 13-sensor assembly, 41-water intaking valve, 51-draining valve, 61-door lock, 71-dry assembly, 81-automatic switching amplification module, 91-heater strip, 101-load motor, the load of 131-sensor assembly.
Detailed description of the invention
Below in conjunction with accompanying drawing, the washing machine that a kind of imbalance of the present invention detects is described in detail:
As shown in Figure 1, a kind of uneven detection washing machine of the present invention, comprise, main control module 1 and functional control module, each functional control module is connected with corresponding load respectively; Described functional control module comprises sensor assembly 13; Described sensor assembly 13 and the separate setting of main control module 1; Main control module 1, sensor assembly 13 are connected with power bus 2 with data/address bus 3 respectively; The sensor assembly load 131 of described sensor assembly 11 correspondence is the acceleration transducer detected for washing machine imbalance, or six axle sensors, or nine axle sensors.
As shown in Figure 7, six axle sensors of the present invention comprise 3-axis acceleration device and three-axis gyroscope:
The 3-axis acceleration device sensing linear acceleration of outer barrel and angle of inclination, can the amplitude of the linear and acceleration of gravity of induction bonded and direction;
The angular velocity of rotation of three-axis gyroscope sensing outer barrel, follows the trail of outer barrel motion direction and spinning movement;
As shown in Figure 7, nine axle sensors of the present invention comprise 3-axis acceleration device, three-axis gyroscope and three axle magnetometers, and three described axle magnetometers can sense the direction of motion of outer barrel.
As a kind of preferred embodiment of the present invention, sensor assembly load 131 of the present invention is arranged on outer barrel bottom, or is arranged on outer barrel sidewall, or is arranged on suspension rod place; Described sensor assembly 11 is arranged in sensor assembly load 131 or near sensor assembly load 131 place.
As a kind of preferred embodiment of the present invention, described functional control module at least also comprises motor control module 10, water inlet control module 4 and draining control module 5; At least one and the separate setting of main control module 1 in described functional control module; Main control module 1, each functional control module independently arranged are connected with power bus 2 with data/address bus 3 respectively; Preferably, all described functional control module settings separate with main control module 1 respectively.
In the present embodiment, each functional control module is connected respectively with corresponding load; Each functional module is arranged in corresponding load or near corresponding load place respectively.The load of described main control module 1 is control panel 11, and the circuit board being provided with main control module 1 is arranged on control panel 11 place.Described control panel 11 also comprises, the human-computer interaction devices such as button, charactron, LCD display.The load of described main control module 1 is each functional control module, after carrying out processing with man-machine communication's information that control panel 11 is reacted and each functional control module feedack, analyzing, send command signal to each functional control module, make each functional control module control corresponding load according to corresponding command signal respectively.
In the present embodiment, the load of described motor control module 10 is load motor 101, and described load motor 101 is any motor such as series excited machine, variable-frequency motor or DD direct driving motor.Described motor control module 10 is located on independent circuits plate or is located on control circuit board; Preferably, the independent circuits plate being provided with motor control module 10 is arranged on load motor 101 or near load motor 101 place; Preferred further, described motor control module 10 is for being arranged on the intelligent computer plate on load motor 10.
In the present embodiment, the load of described water inlet control module 4 is, for controlling the water inlet component of water inlet pipe on off operating mode.In the present embodiment, described water inlet component is set to water intaking valve 41, and described water inlet control module 4 is located on independent circuits plate or is located on control circuit board; Preferably, the independent circuits plate be provided with into water control module 4 is arranged near water intaking valve 41 place; Preferred further, described water inlet control module 4 is for being arranged on the intelligent computer plate near water intaking valve 41 place.
In the present embodiment, the load of described draining control module 5 is load bank water assembly, and described load bank water assembly is draining pump for controlling drainpipe opening and closing and/or draining valve 51, and in the present embodiment, described load bank water assembly is draining valve 51.Described draining control module 5 is located on independent circuits plate or is located on control circuit board; Preferably, the independent circuits plate being provided with draining control module 5 is arranged near draining valve 51 place; Preferred further, described draining control module 5 is for being arranged on the intelligent computer plate near draining valve 51 place.
In the present embodiment, above-mentioned independent circuits plate is separated with control circuit board, the independent circuit board arranged.Thus, make the corresponding function control module of each load achieve independent setting, simplify the step of circuit board repair, replacement, improve the maintenance of washing machine, production efficiency.
In the present embodiment, described motor control module 10, water inlet control module 4 and draining control module 5 are respectively arranged with data bus terminal and power bus terminal; The data bus terminal of each functional control module is connected with data/address bus 3 respectively, and power bus terminal is connected with power bus 2 respectively.
By being connected with power bus by the power bus terminal of each functional control module, making each functional control module control the break-make of power bus and the load of each road, making respective load obtain power supply and action.Meanwhile, by the data bus terminal of each functional control module being connected with data/address bus, the human-machine interactive information obtained by main control module is conveyed to functional control module, to control the operating state of corresponding load; Or the action message of each load is fed back to main control module, to realize the transmission of information between main control module and each functional control module.
As shown in Figure 2, in the present embodiment, power bus 2 is extended in washing machine shell by power supply adaptor 12 place of washing machine, and described power bus 2 is successively through control panel 11, sensor assembly load 131, water intaking valve 41, load motor 101 and draining valve 51.Described power bus 2 is respectively equipped with corresponding port at control panel 11, sensor assembly load 131, water intaking valve 41, load motor 101 and draining valve 51 place, and each port is connected with the terminal of draining control module 5 with corresponding main control module 1, sensor assembly 13, control module of intaking 4, motor control module 10 respectively.By power bus, main control module 1, sensor assembly 13, water inlet control module 4, motor control module 10 and draining control module 5 are sequentially connected in series, achieve the power distribution of each functional control module be arranged in each load or near load place.In the present embodiment, above-mentioned main control module and each functional control module also can be connected in series through power bus by arbitrary order.
As shown in Figure 3, in the present embodiment, data/address bus 3 extends in washing machine shell in the control panel place on washing machine top, and described data/address bus 3 is successively through sensor assembly load 131, water intaking valve 41, load motor 101 and draining valve 51.Described data/address bus 3 is respectively equipped with corresponding port at sensor assembly load 131, water intaking valve 41, load motor 101 and draining valve 51 place, and each port is connected with the terminal of draining control module 5 with corresponding sensor assembly 13, control module of intaking 4, motor control module 10 respectively.By data/address bus, main control module 1, sensor assembly 13, water inlet control module 4, motor control module 10 and draining control module 5 are sequentially connected in series, achieve the information transmission be arranged in each load or near between each functional control module of load place.In the present embodiment, above-mentioned main control module and each functional control module also can be connected in series through data/address bus by arbitrary order.
As a kind of preferred embodiment of the present invention: described functional control module also comprises: door lock control module 6, the combination of drying control module 7, automatically throwing in one of control module 8, heating control module 9 or at least two.
As a kind of preferred embodiment of the present invention, the load of described oven dry control module 7 is each oven dry assembly 71 forming washing machine drying clothes system; Described oven dry control module 7 can be located on independent circuits plate or be located on control circuit board.Preferably, described oven dry control module 7 is for controlling Based Intelligent Control computer plate that washing machine dries assembly 71 duty, that be arranged on close oven dry assembly place.Form the Based Intelligent Control computer plate of drying control module 7 to be directly connected with oven dry assembly.
In the present embodiment, described data/address bus 3 is successively through control panel 11, oven dry assembly 71, water intaking valve 41, load motor 101 and draining valve 51.Described data/address bus 3 is respectively equipped with corresponding port in above-mentioned each load place, each port is connected with the terminal of draining control module 5 with corresponding oven dry control module 7, control module of intaking 4, motor control module 10 respectively, make data/address bus by main control module, dry control module, water inlet control module, motor control module and draining control module are sequentially connected in series, and achieve the information transmission be arranged in each load or near between each functional control module of load place.In the present embodiment, above-mentioned main control module and each functional control module also can be connected in series through data/address bus by arbitrary order.
In the present embodiment, power bus 2 is extended in washing machine shell by power supply adaptor 12 place of washing machine, and described power bus 2 is successively through control panel 11, oven dry assembly 71, water intaking valve 41, load motor 101 and draining valve 51.Described power bus 2 is respectively equipped with corresponding port in above-mentioned each load place, each port respectively with corresponding main control module 1, dry control module 7, control module of intaking 4, motor control module 10 be connected with the terminal of draining control module 5.By power bus, main control module, oven dry control module, water inlet control module, motor control module and draining control module are sequentially connected in series, achieve the power distribution of each functional control module be arranged in each load or near load place.In the present embodiment, above-mentioned main control module and each functional control module also can be connected in series through power bus by arbitrary order.
As a kind of preferred embodiment of the present invention; Described automatic input control module 8 can be located on independent circuits plate or be located on control circuit board; The load of described automatic input control module 8 is, controls the automatic switching amplification module 81 that detergent box 82 is thrown in.In the present embodiment, described automatic switching amplification module 81 is made up of automatic feeder, and automatic feeder is connected through throwing in pipeline with outer barrel of washing machine, and described input pipeline is provided with control valve.Preferably, described automatic input control module 8 be the injected volume of liquid detergent for controlling washing machine and/or washing powder and/or softener, be arranged on Based Intelligent Control computer plate near control valve place.Form the Based Intelligent Control computer plate automatically throwing in control module 8 to be directly connected with the control valve of composition automatic switching amplification module 81.
In the present embodiment, described data/address bus 3 is successively through the automatic switching amplification module 81 of control panel 11, detergent box, water intaking valve 41, load motor 101 and draining valve 51.Described data/address bus 3 is respectively equipped with corresponding port in above-mentioned each load place, each port is connected with the terminal of draining control module 5 with corresponding automatic input control module 8, control module of intaking 4, motor control module 10 respectively, make data/address bus by main control module, automatically throw in control module, water inlet control module, motor control module and draining control module be sequentially connected in series, achieve be arranged in each load or near load place each functional control module between information transmission.In the present embodiment, above-mentioned main control module and each functional control module also can be connected in series through data/address bus by arbitrary order.
In the present embodiment, power bus 2 is extended in washing machine shell by the power supply adaptor place of washing machine, and described power bus 2 is successively through the automatic switching amplification module 81 of control panel 11, detergent box 82, water intaking valve 41, load motor 101 and draining valve 51.Described power bus 2 is respectively equipped with corresponding port in above-mentioned each load place, each port respectively with corresponding main control module 1, automatically throw in control module, control module of intaking 4, motor control module 10 be connected with the terminal of draining control module 5.Throw in control module by power bus by main control module, automatically, water inlet control module, motor control module and draining control module are sequentially connected in series, achieve the power distribution of each functional control module be arranged in each load or near load place.In the present embodiment, above-mentioned main control module and each functional control module also can be connected in series through power bus by arbitrary order.
As a kind of preferred embodiment of the present invention, described heating control module 9 can be located on independent circuits plate or be located on control circuit board.The load of described heating control module is, the heating component in heating system.Described heating component comprises, any heating component such as heater strip 91, heating tube or heat pump.In the present embodiment, preferably, heating component is heater strip 91; Preferred further, described heater strip 91 is located in inlet pipeline, heats water inlet current.Described heating control module 9 be heating component heated condition for controlling washing machine, be arranged on Based Intelligent Control computer plate near heater strip 91 place.The intelligent control circuit forming heating control module 9 is directly connected with heater strip 91.
In the present embodiment, described data/address bus 3 is successively through control panel 11, water intaking valve 41, close heater strip 91 place, load motor 101 and draining valve 51.Described data/address bus 3 is respectively equipped with corresponding port in above-mentioned each load place, each port is connected with the terminal of draining control module 5 with corresponding water inlet control module 4, heating control module 9, motor control module 10 respectively, main control module, water inlet control module, heating control module, motor control module and draining control module are sequentially connected in series by data/address bus, achieve the information transmission be arranged in each load or near between each functional control module of load place.In the present embodiment, above-mentioned main control module and each functional control module also can be connected in series through data/address bus by arbitrary order.
In the present embodiment, power bus 2 is extended in washing machine shell by the power supply adaptor place of washing machine, and described power bus 2 is successively through control panel 11, water intaking valve 41, close heater strip 91 place, load motor 101 and draining valve 51.Described power bus 2 is respectively equipped with corresponding port in above-mentioned each load place, and each port is connected with the terminal of draining control module 5 with corresponding main control module 1, control module of intaking 4, heating control module 9, motor control module 10 respectively.By power bus, main control module, water inlet control module, heating control module, motor control module and draining control module are sequentially connected in series, achieve the power distribution of each functional control module be arranged in each load or near load place.In the present embodiment, above-mentioned main control module and each functional control module also can be connected in series through power bus by arbitrary order.
As a kind of preferred embodiment of the present invention: in above-mentioned embodiment, at least one functional control module and main control module 1 are located on control circuit board, each functional control module be jointly located on control circuit board with main control module 1 is connected with corresponding load through connecting line respectively.Simultaneously, be provided with the control circuit board of main control module and at least one functional control module respectively through power bus and data/address bus, the each functional control module other be located on the circuit board relatively independent with control circuit board is sequentially connected in series, and the described independent circuits plate being provided with each functional control module is arranged in corresponding load or near corresponding load place.
Due to, jointly be located at main control module 1 on control circuit board and each functional control module is interconnected through connecting circuit, and main control module 1 is connected with power bus through power bus terminal respectively with each functional control module, be connected with data/address bus through data bus terminal, make to be located at main control module 1 on control circuit board and each functional control module respectively each functional control module be located at other on independent circuits plate be mutually connected in series, reach main control module 1 and the interconnective effect of each functional control module, achieve the transmission of each intermodular data, the object of dynamic Control.
Below in conjunction with accompanying drawing, a kind of washing machine unbalance detection of the present invention is described in detail:
As shown in Figure 4, be the program control flow chart of a kind of washing machine unbalance detection of the present invention, comprise the steps:
Step S1, runs dehydration sequential, performs offset and detects examination dehydration action.
User operation control panel 11 makes washing machine carry out work, main control module 1 controls washing machine and enters dehydration sequential, main control module 1 controls motor control module 10 and first performs offset and detect examination dehydration action, offset detect examination dehydration action be in order to detect washing machine enter dehydration sequential initial time eccentric situation.Offset detect examination dehydration action be washing machine inner tub slight rotate, the moment of rotating, the offset that sensor detection module carries out washing machine immediately detects to obtain initial eccentricity amount.Because include offset in offset detection method of the present invention to detect examination dehydration action, so the present invention can avoid washing machine just entered the water smoking due to offset excessive and the phenomenon of " hitting bucket " occurs, and this phenomenon is cannot to avoid and the frequency occurred is very high in the existing water smoking.
Step S2, sensor assembly performs offset and detects the eccentric situation that action detects machine in real time, initial setting water desorption curve.
Washing machine of the present invention is provided with the sensor assembly 13 detecting offset, and sensor assembly 13 of the present invention can carry out the detection of Active and Real-time to the offset of washing machine.Sensor assembly 13 detects when offset detects examination dehydration action, obtains the initial eccentricity amount of outer barrel of washing machine, and according to this initial eccentricity amount initial setting water desorption curve.Initial water desorption curve of the present invention is the theoretical curve in water smoking, generally comprise offset and detect examination water smoking, low speed water smoking and high speed dewatering stage, but in the dehydration of reality, owing to can revise offset, therefore, water desorption curve also can be made and revising to ensure carrying out smoothly of water smoking accordingly.Water desorption curve of the present invention can be selected according to the initial eccentricity amount of washing machine, to obtain optimal dewatering speed, ensures carrying out smoothly of dehydration, avoids bias phenomenon of " hitting bucket ".
Step S3, perform low speed dehydration action according to water desorption curve, sensor assembly detects low speed offset in real time.
Sensor assembly 13 of the present invention transmits the data detecting and analyze by data/address bus 3 to main control module 1, main control module 1 performs low speed dehydration action according to Data Control motor control module 10 and enters the low speed water smoking, carries out offset detection in real time at low speed water smoking sensor assembly 13.The present invention enters the water desorption curve of low speed water smoking according to initial setting first time, after carrying out run-out modification in the low speed water smoking, the water desorption curve of initial setting is revised accordingly, then again enters the low speed water smoking according to revised water desorption curve.
Step S4, judges whether the low speed offset detected exceedes limit value.
The setting of limit value of the present invention needs to be drawn by corresponding experiment, and because type is different, cause dissimilar washing machine limit value meeting different, when its limit value is laundry machine dehydration, the eccentric critical inclination angle angle value causing outer barrel to clash into casing occurs outer barrel.
Step S5, if the determination result is YES, then performs low speed offset corrective action, if judged result is no, enters next step.
Step S6, perform high speed dewatering action, sensor assembly detects high speed offset in real time.
Step S7, judges whether the high speed offset of high speed dewatering action exceedes limit value.
Step S8, if the determination result is YES, performs the action of high speed run-out modification, if judged result is no, with high speed dewatering release.
Dehydration is divided into three phases by unbalance detection of the present invention: offset detects the examination water smoking, mainly obtains initial eccentricity amount by examination dehydration, determines initial water desorption curve; In the low speed water smoking, be the Main Stage of carrying out offset detection and correction, and the high speed dewatering stage can not be entered when the offset in low speed water smoking is not revised; The high speed dewatering stage, be the Main Stage of carrying out dewatering, the high speed dewatering stage also carries out eccentricity detecting and correction, and what should be readily appreciated by one skilled in the art is, due to the low speed water smoking to offset to meet the demands, finally complete dehydration with the high speed dewatering stage.
Therefore, unbalance detection of the present invention can Active and Real-time carry out eccentricity detecting and correction, and carry out eccentricity detecting and correction targetedly in the different water smokings, so unbalance detection of the present invention is more accurate, react sensitiveer.
As one of the present invention preferred embodiment, the present invention discloses the run-out modification method of carrying out in the low speed water smoking simultaneously, and particularly, the low speed offset corrective action in described step S5 comprises the following steps:
Step S51, low speed dehydration action stops;
Step S52, revises water desorption curve;
Step S53, performs low speed dehydration action according to revised water desorption curve, turns back to step S3.
The offset that the present invention detects when sensor is greater than limit value, when namely hitting barrel trend or hit barrel situation, main control module 1 sends the signal of motor stopping to motor control module 10, motor control module 10 controls motor and stops action, sensor assembly 13 will revise water desorption curve again simultaneously, reenter the low speed water smoking according to revised water desorption curve.
As a kind of preferred embodiment of the present invention, in step S5 of the present invention, low speed offset corrective action performs N time at most, and described N meets: 0 < N≤10; Preferably, N=3 time.
As one of the present invention preferred embodiment, when above-mentioned steps 551-S53 still can not solve offset be greater than the problem of limit value time, namely when, in described step S5 low speed offset corrective action perform number of times more than N time time, then perform following steps:
Step S54, performs water filling washing corrective action;
Step S55, performs draining action;
Step S56, turns back to step S1.As a kind of preferred embodiment of the present invention, step S54 of the present invention performs M time at most, meets for described M time: 0 < M≤10, preferably, and M=3 time.If the number of times that step S54 performs is greater than M, then perform actuation of an alarm.
Above-mentioned run-out modification method is that main control module 1 sends signal to water inlet control module 4, and water inlet control module 4 controls water intake valve, and the mode of again washing balances bias; After balance, dehydration sequential is reruned in draining again, if three water inlet corrections still can not be avoided " hitting bucket " repeatedly, control module will be reported to the police.
Analyze above two kinds of run-out modification methods of carrying out in the low speed water smoking known, the low speed water smoking of the present invention only just can enter the high speed dewatering stage when offset is less than limit value, after offset cannot be revised, then report to the police, user follows according to the maintenance manually carried out eccentric balance or carry out being correlated with of reporting to the police.Therefore, the present invention can avoid causing because offset is excessive " hitting bucket " in the high speed dewatering stage, and " the hitting bucket " in high speed dewatering stage is often larger to the damage of casing of washing machine.
In order to further ensure carrying out smoothly of water smoking, the present invention has carried out eccentricity detecting and run-out modification in the high speed dewatering stage simultaneously, as a kind of preferred embodiment of the present invention, the high speed run-out modification action in step S8 of the present invention comprises the following steps:
Step S81, execution speed, acceleration correction action, sensor assembly detects high speed offset in real time;
Step S82, judges whether high speed offset exceedes limit value;
Step S83, if the determination result is YES, then performs deceleration run-out modification, enters next step, if judged result is no, with high speed dewatering release;
Step S84, with comparatively low speed dehydration release.
The correction result in high speed dewatering stage of the present invention is finally with high speed dewatering action or comparatively low speed release, and this is mainly owing to just can enter the high speed dewatering stage when offset in low speed water smoking of the present invention only has and meets limit value.Therefore, strictly speaking, high speed run-out modification of the present invention action is to guarantee completing smoothly of dehydration further.Mentionedly in the present invention refer to that the rotating speed of dehydration is slightly less than the rotating speed in the high speed dewatering stage of former setting compared with low speed dehydration action, but this comparatively the slow-speed of revolution still can meet dehydration requirement, and " hitting bucket " phenomenon can not be there is.Therefore, the high speed dewatering stage of the present invention run-out modification revises acceleration mainly through main control module 1 order motor control module 10, speed realizes.
As shown in Figure 5, be a kind of water desorption curve figure of the present invention, wherein in figure:
0-a part: offset detects examination dehydration action;
A-b part: motor stops;
B-c part: motor Accelerating running enters the low speed water smoking;
C-d part: low speed water smoking, motor low cruise;
D-e part: motor Accelerating running enters the high speed dewatering stage;
E-f part: high speed dewatering stage, high speed operation of motor.
Should be readily appreciated by one skilled in the art, this water desorption curve is example plot, and in actual moving process, because dehydration actual conditions are different, water desorption curve is also different.Such as, the motor in a-b stage can not stop, and decelerating through motor is to certain value or directly enter the low speed water smoking from trying the water smoking; The high speed dewatering stage entering into e-f from the low speed water smoking of c-d needs the adjustment carried out repeatedly, progressively enters, but not directly enters the high speed dewatering stage from the disposable acceleration of low speed water smoking in this curve.
Sensor assembly of the present invention also comprises s operation control chip part as shown in Figure 6:
S operation control chip of the present invention:
Detect examination dehydration action and low speed dehydration action phase according to distance relation between the detection data of 3-axis acceleration and three-axis gyroscope and outer barrel and casing at offset, revise out offset limit value data, and parse do not hit bucket dehydration curved line arithmetic;
In high speed dewatering action phase or comparatively low speed dehydration action phase, run through the water desorption curve of this algorithm correction acceleration and velocity amplitude, and according to 3-axis acceleration and three-axis gyroscope real-time correction, maintain and do not hit tubbiness state until dehydration procedure terminates.
In order to increase the accuracy of detection further, as shown in Figure 8, when the real-time detecting position of sensor assembly of the present invention installs at least one in the middle part of outer barrel top and/or outer barrel and/or on outer barrel bottom the hour place, preferably, when the real-time detection position of described sensor assembly is separately positioned on 8 of three height in outer barrel upper, middle and lower the hour place.
In the use procedure of reality, the casing of washing machine may cause tilting due to the position injustice of placing, therefore need this variable to consider in actual offset limit value, as shown in Figure 9, offset limit value of the present invention also depends on the tilt angle alpha of casing horizontal positioned, 0 described < α≤10 °, only have when the tilt angle alpha of casing meets within the scope of this, limit value is only effectively, and when an angle of inclination is too large, limit value is no longer applicable.
The above is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any technical staff being familiar with this patent is not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned prompting can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solution of the present invention, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of the present invention program.
Claims (11)
1. the uneven washing machine detected, comprise, main control module (1) and functional control module, each functional control module is connected with corresponding load respectively; It is characterized in that: described functional control module comprises sensor assembly (13); Described sensor assembly (13) and main control module (1) separate setting; Main control module (1), sensor assembly (13) are connected with power bus (2) with data/address bus (3) respectively; The sensor assembly load (131) that described sensor assembly (11) is corresponding is the acceleration transducer detected for washing machine imbalance, or six axle sensors, or nine axle sensors.
2. the washing machine of a kind of imbalance detection according to claim 1, it is characterized in that, six described axle sensors comprise 3-axis acceleration device and three-axis gyroscope:
The 3-axis acceleration device sensing linear acceleration of outer barrel and angle of inclination, can the amplitude of the linear and acceleration of gravity of induction bonded and direction;
The angular velocity of rotation of three-axis gyroscope sensing outer barrel, follows the trail of outer barrel motion direction and spinning movement;
Nine described axle sensors comprise 3-axis acceleration device, three-axis gyroscope and three axle magnetometers, and three described axle magnetometers can sense the direction of motion of outer barrel.
3. the washing machine of a kind of imbalance detection according to claim 1, it is characterized in that, described sensor assembly load (131) is arranged on outer barrel bottom, or is arranged on outer barrel sidewall, or is arranged on suspension rod place; Described sensor assembly (11) is arranged in sensor assembly load (131) or near sensor assembly load (131) place.
4. the washing machine of a kind of imbalance detection according to claim 1, it is characterized in that, described functional control module at least also comprises motor control module (10), water inlet control module (4) and draining control module (5); At least one and main control module (1) separate setting in described functional control module; Main control module (1), each functional control module independently arranged are connected with power bus (2) with data/address bus (3) respectively; Preferably, all described functional control modules respectively with main control module (1) separate setting.
5. the washing machine that a kind of imbalance according to claim 1-4 any one detects, is characterized in that: described functional control module also comprises: door lock control module (6), the combination of drying control module (7), automatically throwing in one of control module (8), heating control module (9) or at least two.
6. a unbalance detection for the washing machine as described in claim 1-5 any one, is characterized in that, comprises the steps:
Step S1, runs dehydration sequential, performs offset and detects examination dehydration action,
Step S2, sensor assembly performs offset and detects the eccentric situation that action detects machine in real time, initial setting water desorption curve;
Step S3, perform low speed dehydration action according to water desorption curve, sensor assembly detects low speed offset in real time;
Step S4, judges whether the low speed offset detected exceedes limit value;
Step S5, if the determination result is YES, then performs low speed offset corrective action, if judged result is no, enters next step;
Step S6, perform high speed dewatering action, sensor assembly detects high speed offset in real time;
Step S7, judges whether the high speed offset of high speed dewatering action exceedes limit value;
Step S8, if the determination result is YES, performs the action of high speed run-out modification, if judged result is no, with high speed dewatering release.
7. a kind of washing machine unbalance detection according to claim 6, is characterized in that, the low speed offset corrective action in described step S5 comprises the following steps:
Step S51, low speed dehydration action stops;
Step S52, revises water desorption curve;
Step S53, performs low speed dehydration action according to revised water desorption curve, turns back to step S3.
8. a kind of washing machine unbalance detection according to claim 7, is characterized in that, in described step S5, low speed offset corrective action performs N time at most, and described N meets: 0 < N≤10.
9. a kind of washing machine unbalance detection according to claim 8, is characterized in that, when low speed offset corrective action performs number of times more than N time in described step S5, then performs following steps:
Step S54, performs water filling washing corrective action;
Step S55, performs draining action;
Step S56, turns back to step S1.
10. a kind of washing machine unbalance detection according to claim 9, it is characterized in that, described step S54 performs M time at most, meets for described M time: 0 < M≤10, if the number of times that step S54 performs is greater than M, then perform actuation of an alarm.
11. a kind of washing machine unbalance detections according to claim 6, is characterized in that, the high speed run-out modification action in described step S8 comprises the following steps:
Step S81, execution speed, acceleration correction action, sensor assembly detects high speed offset in real time;
Step S82, judges whether high speed offset exceedes limit value;
Step S83, if the determination result is YES, then performs deceleration run-out modification, enters next step, if judged result is no, with high speed dewatering release;
Step S84, with comparatively low speed dehydration release.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410267444.1A CN105274775B (en) | 2014-06-16 | 2014-06-16 | A kind of unbalance detection of washing machine |
| PCT/CN2014/081462 WO2015192403A1 (en) | 2014-06-16 | 2014-07-02 | Method for detecting imbalance of washing machine, and washing machine |
| US15/318,778 US20170121881A1 (en) | 2014-06-16 | 2014-07-02 | A method for detecting imbalance of washing machine, and a washing machine |
| JP2016570843A JP6524508B2 (en) | 2014-06-16 | 2014-07-02 | Washing machine imbalance detection method and washing machine |
| EP14895145.2A EP3156536A4 (en) | 2014-06-16 | 2014-07-02 | Method for detecting imbalance of washing machine, and washing machine |
| KR1020177001074A KR20170018432A (en) | 2014-06-16 | 2014-07-02 | Method for detecting imbalance of washing machine, and washing machine |
| AU2014398012A AU2014398012A1 (en) | 2014-06-16 | 2014-07-02 | Method for detecting imbalance of washing machine, and washing machine |
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