CN113273905B - Control method of food processor - Google Patents
Control method of food processor Download PDFInfo
- Publication number
- CN113273905B CN113273905B CN202010103710.2A CN202010103710A CN113273905B CN 113273905 B CN113273905 B CN 113273905B CN 202010103710 A CN202010103710 A CN 202010103710A CN 113273905 B CN113273905 B CN 113273905B
- Authority
- CN
- China
- Prior art keywords
- rotary valve
- motor
- current
- valve
- locked
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
- A47J43/08—Driving mechanisms
- A47J43/082—Driving mechanisms for machines with tools driven from the upper side
Abstract
The application discloses a control method of a food processor, the food processor comprising: the rotary valve, drive the motor that the rotary valve rotated and be used for carrying out spacing stop device to the rotary valve, this method includes: detecting the working current I of the motor in real time in the process that the motor drives the rotary valve to rotate t (ii) a The working current detected in real time is compared with a preset first current threshold value I L And a second current threshold I d Comparing; first current threshold I L A second current threshold I for the minimum operating current of the motor d The locked-rotor current is the locked-rotor current when the rotary valve rotates to the position of the limiting device; identifying the position of the rotary valve according to the comparison result; wherein, when I L <I t <I d Or I t ≤I L When the valve is in the normal position, the rotating valve is judged to be not rotated in place; when I is t ≥I d When it is determined that the rotary valve may have been rotated into position. Through the scheme of the embodiment, the reliable closing or opening of the rotary valve is realized through the optimization of the control method, the device cost is reduced, the service life and the reliability are improved, and the user experience is improved.
Description
Technical Field
The present disclosure relates to control technology of cooking devices, and more particularly, to a control method of a food processor.
Background
The existing food processing machine (such as a soybean milk machine) drives a rotary valve to work by driving a speed reduction motor, and identifies the position of the rotary valve by a magnetic control sensor such as a Hall device or a reed switch and the like to realize the closing or opening of a cavity, and the mode has the following defects:
1. high cost and more occupied resources: the number of the set positions of the rotary valves needs to be configured with the same IO ports, the number of the set positions of the rotary valves needs to be configured with the corresponding number of the sensor devices, and a circuit board for specially placing the sensors and a control flat cable are also needed.
2. The failure rate is high: the risk of damage or failure of devices exists under the conditions of high temperature and high humidity and vibration in the working process of a machine, so that normal pulping cannot be realized, and the user experience is influenced.
3. The position detection deviation is large: the regional scope that devices such as hall device or tongue tube itself exist the detection influences the precision to position detection, and the reproduction is in addition processed and is easily produced position deviation, and this position deviation will accumulate to increase and lead to position detection deviation big, leads to the slurrying in-process to leak thick liquid or arrange thick liquid scheduling problem smoothly, influences user experience.
Disclosure of Invention
The application provides a control method of a food processor, which can optimize and realize reliable closing or opening of a rotary valve, reduce device cost, prolong service life, improve reliability and improve user experience.
The present application provides a control method of a food processor, which may include: the rotary valve, drive the motor that the rotary valve rotated and be used for carrying out spacing stop device to the rotary valve, the method can include:
detecting the working current I of the motor in real time in the process that the motor drives the rotary valve to rotate t ；
The working current detected in real time and a preset first current threshold I L And a second current threshold I d Comparing; wherein the first current threshold I L For a minimum operating current of the electric machine, the second current threshold I d The locked-rotor current is the locked-rotor current when the rotary valve rotates to the position of the limiting device;
identifying the position of the rotary valve according to the comparison result; wherein, when I L <I t <I d Or I t ≤I L When the rotary valve is in place, judging that the rotary valve is not in place; when I is t ≥I d And judging whether the rotary valve is locked, stopping the motor and judging whether the rotary valve is rotated to the position according to the working time T of the rotary valve.
In an exemplary embodiment of the present application, the method further comprises:
when I is L <I t <I d When the motor works normally, the motor is judged, and the rotary valve is not rotated in place; wherein the steering to the bit comprises: turning to the position of the limiting device;
when I is t ≤I L And judging that the motor works abnormally so that the rotary valve is not rotated in place.
In the exemplary implementation of the present applicationIn an example, the method may further include: in the process that the motor drives the rotary valve to rotate, the rotary valve starts to rotate for a first preset time T 0 Then, the working current I of the motor is detected in real time t And according to said operating current I t The position of the rotary valve is identified.
In an exemplary embodiment of the present application, the first preset duration T 0 Can satisfy the following conditions:
T d the total time length of single rotation of the rotary valve.
In an exemplary embodiment of the present application, the determining whether the rotary valve has rotated to the right position according to the operating time T of the rotary valve may include:
when T is d -T 0 -ΔT d ≤T≤T d -T 0 +ΔT d When the rotary valve is in place, judging that the rotary valve is rotated in place; delta T d A preset time length floating value is set;
when T is 0 ＜T＜T d -T 0 -ΔT d When the rotating valve is in place, judging that the rotating valve is not rotated in place, and generating a locked rotor fault in the rotating process of the rotating valve;
when T > T d -T 0 +ΔT d And if so, judging that the rotary valve is abnormal.
In an exemplary embodiment of the present application, the method may further include:
when the rotary valve is driven to work in each pulping process, the locked-rotor current value of the motor is stored and is updated to be the second current threshold I in the next pulping process d (ii) a And/or the presence of a gas in the atmosphere,
when the rotary valve is driven to work in each pulping process, the working current value I of the motor in a non-locked-rotor state is stored t Determining the minimum working current of the motor according to the change condition, and updating the determined minimum working current into a first current threshold I in the next pulping process L 。
In an exemplary embodiment of the present application, the method may further include:
storing a starting position and a target position of the rotary valve before starting to drive the rotary valve to rotate;
when the machine is powered off in the working process of the rotary valve, after the machine is powered on again, if the machine is in a preset power-off memory time range, the initial position of the rotary valve before power-off is read, the motor is controlled to work in the reverse direction, the rotary valve is driven to return to the initial position through locked-rotor judgment, and the rotary valve is driven to rotate from the initial position to the target position.
In an exemplary embodiment of the present application, the method may further include: when the power-down memory time range is exceeded:
performing power-on initialization, reading an initial position and a target position of the rotary valve before power failure, and if the target position of the rotary valve before power failure is consistent with the position of the rotary valve after initialization, controlling the motor to work in the opposite direction and driving the rotary valve to return to the initial position through locked rotor judgment; driving the rotary valve to rotate from the initial position to the initialized rotary valve position; alternatively, the first and second electrodes may be,
performing power-on initialization, reading an initial position and a target position of the rotary valve before power failure, and if the target position of the rotary valve before power failure is opposite to the position of the rotary valve after initialization, controlling the original direction of the motor to work and driving the rotary valve to return to the target position through locked rotor judgment; and driving the rotary valve to rotate from the target position to the initialized rotary valve position.
In an exemplary embodiment of the present application, the method may further include: configuring different first current threshold I according to different pulping functions L And a second current threshold I d (ii) a Wherein, the pulping function comprises: cold pulping, hot pulping and continuous pulping.
In an exemplary embodiment of the present application, the method may further include:
before the machine leaves the factory, the position of the rotary valve and a first current threshold I corresponding to the position of the rotary valve L And a second current threshold I d And (6) carrying out calibration.
In contrast to the related art, the food processor in the present application may include: the rotary valve, drive the motor that the rotary valve rotated and be used for carrying out spacing stop device to the rotary valve, the method can include: detecting the working current I of the motor in real time in the process that the motor drives the rotary valve to rotate t (ii) a The working current detected in real time and a preset first current threshold I L And a second current threshold I d Comparing; wherein the first current threshold I L For a minimum operating current of the electric machine, the second current threshold value I d The locked-rotor current is the locked-rotor current when the rotary valve rotates to the position of the limiting device; identifying the position of the rotary valve according to the comparison result; wherein, when I L <I t <I d Or I t ≤I L Judging that the rotary valve is not rotated in place; when I is t ≥I d And judging whether the rotary valve is locked, stopping the motor and judging whether the rotary valve is rotated to the position according to the working time T of the rotary valve. Through the scheme of the embodiment, the reliable closing or opening of the rotary valve is realized through the optimization of the control method, the device cost is reduced, the service life and the reliability are improved, and the user experience is improved.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. Other advantages of the present application may be realized and attained by the instrumentalities and combinations particularly pointed out in the specification and the drawings.
Drawings
The accompanying drawings are included to provide an understanding of the present disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the examples serve to explain the principles of the disclosure and not to limit the disclosure.
FIG. 1 is a flow chart of a control method of a food processor according to an embodiment of the present application;
FIG. 2 is a schematic diagram of the operating current of the motor according to the embodiment of the present application;
FIG. 3 is a schematic view of the rotary valve of an embodiment of the present application;
fig. 4 is a schematic diagram of a rotary valve position detection circuit according to an embodiment of the present application.
Detailed Description
The present application describes embodiments, but the description is illustrative rather than limiting and it will be apparent to those of ordinary skill in the art that many more embodiments and implementations are possible within the scope of the embodiments described herein. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Any feature or element of any embodiment may be used in combination with, or instead of, any other feature or element in any other embodiment, unless expressly limited otherwise.
The present application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The embodiments, features and elements disclosed in this application may also be combined with any conventional features or elements to form a unique inventive concept as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other inventive aspects to form yet another unique inventive aspect, as defined by the claims. Thus, it should be understood that any of the features shown and/or discussed in this application may be implemented alone or in any suitable combination. Accordingly, the embodiments are not limited except as by the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.
Further, in describing representative embodiments, the specification may have presented the method and/or process as a particular sequence of steps. However, to the extent that the method or process does not rely on the particular order of steps set forth herein, the method or process should not be limited to the particular sequence of steps described. Other orders of steps are possible as will be understood by those of ordinary skill in the art. Therefore, the particular order of the steps set forth in the specification should not be construed as limitations on the claims. Furthermore, the claims directed to the method and/or process should not be limited to the performance of their steps in the order written, and one skilled in the art can readily appreciate that the sequences may be varied and still remain within the spirit and scope of the embodiments of the present application.
Example one
The present application provides a control method of a food processor, which may include: as shown in fig. 1, the method may include S101-S103:
s101, detecting the working current I of the motor in real time in the process that the motor drives the rotary valve to rotate t ；
S102, detecting the working current in real time and a preset first current threshold I L And a second current threshold I d Comparing; wherein the first current threshold I L For a minimum operating current of the electric machine, the second current threshold I d The locked-rotor current is the locked-rotor current when the rotary valve rotates to the position of the limiting device;
s103, identifying the position of the rotary valve according to a comparison result; wherein, when I L <I t <I d Or I t ≤I L Judging that the rotary valve is not rotated in place; when I is t ≥I d It is determined that the rotary valve may have been rotated into position.
In the exemplary embodiment of the present application, when I t ≥I d And when the rotating valve is blocked, correspondingly, the rotating valve can be judged to be rotated to the position, the motor stops working, and whether the rotating valve is rotated to the position can be further judged according to the working time length T of the rotating valve.
In the exemplary embodiment of the present application, the main control of the food processor may drive the motor to drive the rotary valve to operate through the rotary shaft at a set rotation speed S, the left and right positions of the rotary valve may be subjected to a limiting process (for example, a limiting device is provided), and when the rotary valve rotates to the limiting position, the rotary valve is locked, so as to open or close the rotary valve, as shown in fig. 2, the embodiment of the present application may identify and determine the position of the rotary valve by using the current change of the motor in two states, i.e., normal operation and locked rotation of the rotary valve.
In the exemplary embodiment of the present application, as shown in fig. 3, the solution of the present embodiment may utilize a motor to drive the rotary valve to work through a rotary shaft, and the rotary valve may be in a closed state initially. When the rotary valve rotates according to the direction B, the rotary valve is moved to be clamped when the limiting rib 4 of the rotary valve rotates to the limiting rib 2 of the rotary valve from the limiting rib 1 of the rotary valve, and the rotary valve is completely opened. When the rotary valve rotates along the direction A, the rotary valve is clamped when the limiting rib 4 of the rotary valve rotates to the limiting rib 1 of the rotary valve from the limiting rib 2 of the rotary valve, and the rotary valve is completely closed. In the working process of the rotary valve, the main control detects the current of the motor in real time and compares, judges and identifies the current with a threshold value set by the main control.
In the exemplary embodiment of the application, the left position and the right position of the rotary valve are subjected to limiting processing, so that the rotary valve is completely opened or closed, and the phenomenon that the normal function execution and the normal pulp discharge are influenced due to incomplete opening or closing of the rotary valve is avoided. The left position and the right position of the rotary valve are limited, the rotary valve is opened or closed and is locked and positioned through the rotary valve, the main control identifies the position of the rotary valve by detecting the current change of a motor driving the rotary valve to work, and the accurate detection, judgment and protection of the position of the rotary valve are ensured.
In an exemplary embodiment of the present application, the method may further include:
when I L <I t <I d When the motor works normally, the rotary valve is not rotated in place; wherein the steering to the bit comprises: turning to the position of the limiting device;
when I is t ≤I L And judging that the motor works abnormally so that the rotary valve is not rotated in place.
In the exemplary embodiment of the application, in the working process of the motor-driven rotary valve, the main control can detect the working current of the motor in real time and continuously acquire N data within t seconds, and calculate the average current value I according to the N data t The rotary valve works for a certain time period T 0 Then, the main control can detect the working current I of the motor t Maximum of the set motorSmall working current judging threshold I L (i.e., first current threshold value) and locked-rotor current determination threshold value I d (i.e., the first current threshold value) is compared and judged:
when I is L <I t <I d When the motor is started, the main control can judge that the rotary valve is not rotated in place, and the main control can continue to drive the motor to work;
when I is t ≥I d When the rotary valve is in a locked state, the main control can judge whether the rotary valve is in place or not according to the working time of the rotary valve, and the main control performs corresponding adjustment control;
when I is t ≤I L And when the motor works abnormally, the master control can judge that the motor does not rotate in place, and the master control performs corresponding adjustment control.
In the exemplary embodiment of the application, the current value of the motor for driving the rotary valve to work is changed and the rotary valve is limited in the normal working state and the locked-rotor state, and the main control can judge and identify whether the rotary valve rotates in place through current detection, so that the cost is reduced, the service life and the reliability of the rotary valve are improved, and the user experience is improved.
In the exemplary embodiment of the application, according to the comparison and judgment of the current condition of the motor for detecting the work of the driving rotary valve and the judgment threshold value set by the master control and the judgment of the working time length of the rotary valve, the abnormal conditions of material clamping and the like in the working process of the rotary valve can be effectively identified and controlled, the machine is protected and controlled in real time, the service lives of the rotary valve and the motor are ensured, and the user experience is improved.
Example two
In this embodiment, the time point for the detection and identification of the position of the rotary valve is set on the basis of the first embodiment.
In an exemplary embodiment of the present application, the method may further include: in the process that the motor drives the rotary valve to rotate, the rotary valve starts to rotate for a first preset time T 0 Then, the working current I of the motor is detected in real time t And according to said operating current I t The position of the rotary valve is identified.
In the exemplary embodiments of the present applicationIn (1), the first preset duration T 0 Satisfies the following conditions:
T d the total time length of single rotation of the rotary valve.
In an exemplary embodiment of the present application, the time point of the rotary valve position detection identification may be set at a time T when the main control drives the motor to normally operate at a set rotation speed S for a certain time 0 After, T 0 Can be set to
Namely T 0 Time is according to total time T of single rotation of rotary valve d And, accordingly.
In an exemplary embodiment of the present application, the time point setting of the rotary valve position detection and identification may be adjusted and controlled according to the current change condition of the main control real-time detection motor, and the main control real-time detection motor working current continuously acquires N data within t seconds to calculate the average current value I t ：
In I L <I t <T d Under the condition that the motor drives the rotary valve to rotate from the initial position to the target position, the total working time length T of the motor can be counted d And the first preset time T of the current use 0 And the counted total working time T of the motor d Comparing:
when the temperature is higher than the set temperature
The time point T of the detection and identification of the position of the rotary valve can be obtained 0 Is updated to
As a first preset duration T in the subsequent rotary valve rotation process 0 ；
When the temperature is higher than the set temperature
When the rotary valve is used again, the time point T identified by the position detection of the rotary valve can be reserved 0 I.e. the first preset duration T of this use still 0 The actual time length of the rotary valve is used as a first preset time length T in the subsequent rotary valve rotating process 0 ；
When the temperature is higher than the set temperature
And when the main control judges that the rotary valve works abnormally, the main control can carry out self-adaptive adjustment control.
In the exemplary embodiment of the present application, there is a process that the starting current is large and gradually decreases to the stable operating current when the master control driving motor starts to operate. Through the setting of the time point of the rotary valve position detection identification, the misjudgment caused by current fluctuation in the starting process is avoided, the detection reliability is ensured, and the user experience is improved.
In the exemplary embodiment of the application, as the machine is in different working environments, individual differences and the use times of the machine are different, the time point setting of the rotary valve position detection and identification is adaptively adjusted according to the real-time current change condition of the rotary valve motor, the detection accuracy is ensured, and the user experience is improved.
EXAMPLE III
On the basis of the first embodiment or the second embodiment, the embodiment is provided for judging whether the rotary valve rotates in place or not according to the working time of the rotary valve and carrying out corresponding adjustment control according to different judgment results.
In an exemplary embodiment of the present application, the determining whether the rotary valve has been rotated to the position according to the operation time T of the rotary valve may include:
when T is d -T 0 -ΔT d ≤T≤T d -T 0 +ΔT d When the rotary valve is in place, judging that the rotary valve is in place; delta T d A preset time length floating value is set;
when T is 0 ＜T＜T d -T 0 -ΔT d When the rotating valve is in place, judging that the rotating valve is not rotated in place, and generating a locked rotor fault in the rotating process of the rotating valve;
when T > T d -T 0 +ΔT d And if so, judging that the rotary valve is abnormal.
In the exemplary embodiment of the application, the main control judges whether the rotary valve is in place or not by detecting the change condition of the working current value of the motor, and judges whether the rotary valve is in place or not by combining the working time of the rotary valve.
In an exemplary embodiment of the present application, the master drive rotary valve operates for a certain time T 0 And then, judging the working time T of the rotary valve:
when I t ≥I d When the main control judges that the rotary valve is blocked:
if T is d -T 0 -ΔT d ≤T≤T d -T 0 +ΔT d The main control can judge that the rotary valve is rotated in place;
if T is 0 ＜T＜T d -T 0 -ΔT d The main control can judge that the rotary valve is not rotated in place, and the problem of locked rotor occurs in the process, and the main control can perform corresponding adjustment control;
if T > T d -T 0 +ΔT d The main control can judge that the rotary valve is abnormal, the limit rib of the movable rotary valve or the limit rib of the stop rotary valve has the damaged condition, and the main control can give an alarm to prompt a user.
In an exemplary embodiment of the present application, when a stalling problem occurs in a driving process of a rotary valve, the main control may perform the following adjustment control:
firstly, the main control can control the motor to stop working, then the main control can control the motor to work in the reverse direction, the main control continuously detects the current condition of the motor, when I t ≥I d And when the rotary valve is blocked and rotated in place, the master control judges that the working time of the rotary valve is not judged in the process. The main control redrives the motor for reversing, works according to the original set requirement, and the process is executed according to the time point of the position detection and identification of the rotary valve and the method for judging the working time of the rotary valve:
when the main control drives the rotary valve to work for a certain time T 0 And then, judging the working time T of the rotary valve:
when I is t ≥I d Master control judgmentWhen the rotary valve is blocked:
when T is d -T 0 -ΔT d ≤T≤T d -T 0 +ΔT d When the rotary valve is rotated in place, the main control can judge that the rotary valve is rotated in place;
when T is 0 ＜T＜T d -T 0 -ΔT d And the master control can judge that the rotary valve is not rotated in place, the problem of locked rotor occurs in the process, and the master control can give an alarm to prompt a user that the rotary valve is abnormal.
In the exemplary embodiment of the application, whether the position of the rotary valve is in place or not is judged according to the working time of the rotary valve, the abnormal pulping of a machine caused by the damage of the rotary valve limiting rib or the rotary stop valve limiting rib is avoided, and the user experience is improved.
In the exemplary embodiment of the application, whether the position of the rotary valve is in place or not is judged according to the working time of the rotary valve, so that the situation that the rotary valve is blocked when other materials or devices which cannot be crushed are added by mistake in the using process of a user is avoided.
In the exemplary embodiment of this application, whether the change valve position targets in place and the corresponding adjustment control when the stifled commentaries on classics condition appears in the drive process through change valve operating time length judgement, through the positive and negative mode of rotating of drive change valve, let the card drop at the material of change valve position, guaranteed that the machine changes the valve normally, promoted the intelligent degree of machine, improved user experience.
Example four
On the basis of any of the above embodiments, the embodiment provides an embodiment in which the motor operating current judgment threshold is adaptively adjusted according to an actually detected operating current value.
In an exemplary embodiment of the present application, the method may further include:
when the rotary valve is driven to work in each pulping process, the locked-rotor current value of the motor is stored and is updated to be the second current threshold I in the next pulping process d (ii) a And/or the presence of a gas in the gas,
when the rotary valve is driven to work in the pulping process each time, the working current value I of the motor in a non-locked-rotor state is stored t And in accordance with said changeDetermining the minimum working current of the motor according to the change situation, and updating the determined minimum working current into a first current threshold I in the next pulping process L 。
In the exemplary embodiment of the application, the locked rotor current value I of the motor of the rotary valve is stored by the main control when the rotary valve is driven to work in each pulping process of the machine t And updated to the next pulping locked-rotor current judgment threshold value I d I.e. I dn ＝I dn-1 ±ΔI d ；
Current value I of main control storage rotary valve motor in non-locked rotor recognition state when the rotary valve is driven to work in each pulping process of machine t Updating the minimum working current judgment threshold value I of the rotary valve driving motor under the condition of change L I.e. I Ln ＝I Ln-1 ±ΔI L 。
In the exemplary embodiment of the application, because the motor has loss under the long-time working condition, the locked rotor current changes, the locked rotor current is detected under the locked rotor condition of the rotary valve every time in the use process of the machine, and the locked rotor current judgment threshold value is updated, so that the detection accuracy and reliability are ensured, and the user experience is improved.
In the exemplary embodiment of the application, because the rotary valve has different abrasion conditions, different environments and the like in the long-term use process, the rotary valve driving force has difference, the detection is ensured to be accurate and the misjudgment is avoided by detecting the current magnitude of the rotary valve in the non-locked rotation process every time in the machine use process and updating the minimum working current judgment threshold value of the rotary valve driving motor, and the user experience is improved.
EXAMPLE five
The embodiment provides an embodiment of the master control storage rotary valve working position and control processing on the basis of any embodiment.
In an exemplary embodiment of the present application, the method may further include:
storing a starting position and a target position of the rotary valve before starting to drive the rotary valve to rotate;
when the machine is powered off in the working process of the rotary valve, after the machine is powered on again, if the machine is in a preset power-off memory time range, the initial position of the rotary valve before power-off is read, the motor is controlled to work in the reverse direction, the rotary valve is driven to return to the initial position through locked-rotor judgment, and the rotary valve is driven to rotate from the initial position to the target position.
In an exemplary embodiment of the present application, the method may further include: when the power-down memory time range is exceeded:
performing power-on initialization, reading an initial position and a target position of the rotary valve before power failure, and controlling the motor to work in the opposite direction and driving the rotary valve to return to the initial position through locked rotor judgment if the target position of the rotary valve before power failure is consistent with the position of the rotary valve after initialization; driving the rotary valve to rotate from the initial position to the initialized rotary valve position; alternatively, the first and second liquid crystal display panels may be,
performing power-on initialization, reading an initial position and a target position of the rotary valve before power failure, and if the target position of the rotary valve before power failure is opposite to the position of the rotary valve after initialization, controlling the original direction of the motor to work and driving the rotary valve to return to the target position through locked rotor judgment; and driving the rotary valve to rotate from the target position to the initialized rotary valve position.
In an exemplary embodiment of the present application, before the master control starts to drive the rotary valve to work, the position condition of the current rotary valve may be stored, including information of the current position (i.e. the starting position) and the execution position (i.e. the target position) of the rotary valve, and when the machine is powered off during the working process of the master control driving rotary valve, after the machine is powered back on:
when the power failure memory time range is within:
the main control continues to execute according to the original function, the main control firstly reads the original position (namely the initial position) condition of the rotary valve before power failure, the main control then drives the rotary valve motor to work in the opposite direction and returns to the original position through the locked rotor judgment, and then drives the rotary valve to rotate to the execution position according to the stored execution position.
When the power failure memory time range is exceeded:
the method comprises the steps that a main control is electrified and initialized, the main control reads original position conditions and original execution position information of a rotary valve before power failure, and when the execution position of the rotary valve before power failure is consistent with the position of an initialized rotary valve, the main control drives a rotary valve motor to work in the reverse direction and returns to the original position through locked-rotor judgment, working time judgment is not performed in the step, the rotary valve is driven to rotate to the position of the initialized rotary valve according to the position of the initialized rotary valve, and the step is judged according to current and working time;
the main control is electrified and initialized, the main control reads the original position condition and the original execution position information of the rotary valve before power failure, if the execution position of the rotary valve before power failure is opposite to the position of the initialized rotary valve, the main control drives the rotary valve motor to work in the original direction and returns to the original execution position through locked rotor judgment, the working time judgment is not carried out, the rotary valve is driven to rotate to the position of the initialized rotary valve according to the position of the initialized rotary valve, and the judgment is carried out according to the current and the working time;
after the master control finishes the work of the rotary valve, the master control stores the current position condition of the rotary valve and uses the current position condition as the position reference of the next work of the rotary valve.
In the exemplary embodiment of the application, the main control unit is used for ensuring the reliability of the operation of the rotary valve by storing the state of each operating position of the rotary valve, including the current position and the execution position of the rotary valve, and using the position information of the rotary valve as the basis of the operating and rotating direction of the rotary valve at the next time.
In the exemplary embodiment of this application, the main control changes the valve operating position state every time through the storage, including changeing valve current position and execution position, under the unexpected circumstances such as the machine falls electric, the main control promotes the intelligent degree of complete machine according to the automatic adjustment control of the commentaries on classics valve position information of storage, guarantees to change the reliability of valve and improves user experience.
EXAMPLE six
The embodiment provides an embodiment in which different judgment thresholds are set under different working condition conditions (such as cold drink or hot drink, continuous pulping or discontinuous pulping) on the basis of any of the above embodiments.
In an exemplary embodiment of the present application, the method may further include: configuring different first current threshold I according to different pulping functions L And a second current threshold I d (ii) a Wherein, the pulping function comprises: cold pulping, hot pulpingPulping and continuous pulping.
In the exemplary embodiment of the application, the main control configures different judgment threshold values according to functions selected by a user, and sets different locked rotor current judgment threshold values I according to cold drink and hot drink differentiation respectively d Minimum working current judgment threshold value I of sum rotary valve driving motor L A size value of (c).
In the exemplary embodiment of the application, the friction force of the rotary valve of the machine is different under the conditions of expansion with heat and contraction with cold, the driving current of the motor is also different, and the detection accuracy and reliability are ensured by configuring different judgment threshold parameters. In addition, the motors of the machine work in a cold and hot state differently, and the accuracy and reliability of detection are ensured by configuring different judgment threshold parameters.
EXAMPLE seven
The embodiment is based on any of the above embodiments, and provides an embodiment in which the position of the rotary valve is detected and calibrated before the machine leaves the factory, and the state of the rotary valve is recorded.
In an exemplary embodiment of the present application, the method may further include:
before the machine leaves the factory, the position of the rotary valve and a first current threshold value I corresponding to the position of the rotary valve L And a second current threshold value I d And (6) carrying out calibration.
In an exemplary embodiment of the present application, the calibration detection of the rotary valve position is performed before the machine leaves the factory, and the calibration mode can be entered by a combination key machine:
the main control drives the motor of the rotary valve to work under the cold state condition, the rotary valve is rotated to a set position from an initial position and then returns to the initial position, and the main control stores a locked-rotor current judgment threshold value I under the cold state condition d Minimum working current judgment threshold I of rotary valve driving motor L Value of (D) and T d And T 0 A duration;
then, after water is fed into the cup body and heated to a set temperature point, the main control drives a rotary valve motor to work, the rotary valve is rotated to a set position from an initial position and then returns to the initial position, and the locked-rotor current judgment threshold value I under the condition of hot state is stored by the main control d Minimum working current judgment threshold I of rotary valve driving motor L Value of (D) and T d And T 0 A duration;
and after the main control sets the initial valve turning position before leaving the factory, the detection process is ended.
In the exemplary embodiment of the application, the position of the rotary valve is detected, calibrated and recorded before the machine leaves the factory, so that each machine is ensured to store different corresponding cold and hot states and the position information of the rotary valve, and the risk of misjudgment due to individual difference is avoided. The position of the rotary valve is detected and calibrated before the machine leaves the factory, and the state of the rotary valve is recorded, so that the consistency of the initial rotary valve position of the rotary valve of each machine is ensured, and the rotary valve of each machine works normally.
Example eight
This embodiment is an embodiment of a rotary valve position detection circuit based on any of the above embodiments.
In an exemplary embodiment of the present application, as shown in fig. 4, the rotary valve position detecting circuit may include: the device comprises a main control module, a power supply module, a rotary valve motor, a motor control module and a current detection module.
In the exemplary embodiment of the application, a power module in the rotary valve position detection circuit can supply power to a main control module and a motor control module, the main control module outputs a drive signal single to the motor control module, the motor control module is connected with positive and negative electrodes M-and M + of a rotary valve motor to drive the motor to work, a current detection module is connected in series at one end of the motor to form a closed-loop control loop with a power supply, and the main control collects the current value of the current detection module in real time through a current sampling port of an IAD to realize closed-loop control of the rotary valve work.
In the exemplary embodiment of the application, through the design of the circuit, the circuit is simple, only one AD port of the main control chip is occupied, the accurate detection of the position of the rotary valve is realized with lower cost and less resources, and the reliability is high.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Claims (12)
1. A control method of a food processor, characterized in that the food processor comprises: the rotary valve comprises a rotary valve, a motor driving the rotary valve to rotate and a limiting device used for limiting the rotary valve, wherein the method comprises the following steps:
detecting the working current I of the motor in real time in the process that the motor drives the rotary valve to rotate t ；
The working current detected in real time and a preset first current threshold I L And a second current threshold I d Comparing; wherein the first current threshold valueI L For a minimum operating current of the electric machine, the second current threshold I d The locked-rotor current is the locked-rotor current when the rotary valve rotates to the position of the limiting device;
identifying the position of the rotary valve according to the comparison result; wherein, when I L <I t <I d Or I t ≤I L Judging that the rotary valve is not rotated in place; when I is t ≥I d When the rotating valve is blocked, stopping the motor and judging whether the rotating valve rotates to the position according to the working time length T of the rotating valve;
storing a starting position and a target position of the rotary valve before starting to drive the rotary valve to rotate;
when the machine is powered off in the working process of the rotary valve, after the machine is powered on again, if the machine is in a preset power-off memory time range, the initial position of the rotary valve before power-off is read, the motor is controlled to work in the reverse direction, the rotary valve is driven to return to the initial position through locked-rotor judgment, and the rotary valve is driven to rotate from the initial position to the target position.
2. The control method of a food processor as set forth in claim 1, further comprising:
when I is L <I t <I d When the motor works normally, the motor is judged, and the rotary valve is not rotated in place;
when I is t ≤I L And judging that the motor works abnormally so that the rotary valve is not rotated in place.
3. The control method of a food processor as set forth in claim 2, further comprising: in the process that the motor drives the rotary valve to rotate, the rotary valve starts to rotate for a first preset time T 0 Then, real-time detection of the working current I of the motor is started t And according to said operating current I t The position of the rotary valve is identified.
4. A control method for a food processor as claimed in claim 3, characterized in that the first preset duration T 0 Satisfies the following conditions:
T d the total time length of single rotation of the rotary valve.
5. The method as set forth in claim 4, wherein said determining whether the rotary valve has been rotated to the on position according to the operating time T of the rotary valve comprises:
when T is d -T 0 -ΔT d ≤T≤T d -T 0 +ΔT d When the rotary valve is in place, judging that the rotary valve is in place; delta T d A preset time length floating value is set;
when T is 0 <T<T d -T 0 -ΔT d When the rotary valve is in the rotating state, judging that the rotary valve is not rotated in place, and generating a locked rotor fault in the rotating process of the rotary valve;
when T is>T d -T 0 +ΔT d And if so, judging that the rotary valve is abnormal.
6. A method of controlling a food processor according to any one of claims 1-5, characterized in that the method further comprises:
when the rotary valve is driven to work in each pulping process, the locked-rotor current value of the motor is stored and is updated to be the second current threshold I in the next pulping process d (ii) a And/or the presence of a gas in the gas,
when the rotary valve is driven to work in each pulping process, the working current value I of the motor in a non-locked-rotor state is stored t Determining the minimum working current of the motor according to the change condition of the motor, and updating the determined minimum working current into a first current threshold I in the next pulping process L 。
7. The control method of a food processor as defined in claim 1, further comprising: when the power-down memory time range is exceeded:
performing power-on initialization, reading an initial position and a target position of the rotary valve before power failure, and controlling the motor to work in the opposite direction and driving the rotary valve to return to the initial position through locked rotor judgment if the target position of the rotary valve before power failure is consistent with the position of the rotary valve after initialization; driving the rotary valve to rotate from the initial position to the initialized rotary valve position; alternatively, the first and second electrodes may be,
performing power-on initialization, reading an initial position and a target position of the rotary valve before power failure, and if the target position of the rotary valve before power failure is opposite to the position of the rotary valve after initialization, controlling the original direction of the motor to work and driving the rotary valve to return to the target position through locked rotor judgment; and driving the rotary valve to rotate from the target position to the initialized rotary valve position.
8. The control method of a food processor as claimed in any one of claims 1-5, wherein the method further comprises: configuring different first current threshold I according to different pulping functions L And a second current threshold I d (ii) a Wherein, the pulping function comprises: cold pulping, hot pulping and continuous pulping.
9. The control method of a food processor as claimed in any one of claims 1-5, wherein the method further comprises:
before the machine leaves the factory, the position of the rotary valve and a first current threshold I corresponding to the position of the rotary valve L And a second current threshold I d And (6) carrying out calibration.
10. A method of controlling a food processor, the food processor comprising: the rotary valve comprises a rotary valve, a motor driving the rotary valve to rotate and a limiting device used for limiting the rotary valve, wherein the method comprises the following steps:
detecting the working current I of the motor in real time in the process that the motor drives the rotary valve to rotate t ；
The working current detected in real time and a preset first current threshold I L And a second current threshold I d Comparing; wherein the first current threshold I L For a minimum operating current of the electric machine, the second current threshold I d The locked-rotor current is the locked-rotor current when the rotary valve rotates to the position of the limiting device;
identifying the position of the rotary valve according to the comparison result; wherein, when I L <I t <I d Or I t ≤I L Judging that the rotary valve is not rotated in place; when I is t ≥I d When the rotating valve is blocked, the motor stops working, and whether the rotating valve rotates to the right position or not is judged according to the working time T of the rotating valve;
further comprises a first preset time length T 0 The first preset duration T 0 Satisfies the following conditions:
T d the total time length of single rotation of the rotary valve is;
the judging whether the rotary valve is rotated to the position according to the working time length T of the rotary valve comprises the following steps:
when T is d -T 0 -ΔT d ≤T≤T d -T 0 +ΔT d When the rotary valve is in place, judging that the rotary valve is in place; delta T d A preset time length floating value is set;
when T is 0 <T<T d -T 0 -ΔT d When the rotary valve is in the rotating state, judging that the rotary valve is not rotated in place, and generating a locked rotor fault in the rotating process of the rotary valve;
when T is>T d -T 0 +ΔT d And if so, judging that the rotary valve is abnormal.
11. The control method of a food processor as set forth in claim 10, further comprising:
when I L <I t <I d When the motor is judged to work normally, and the rotary valve is not rotated yetA bit;
when I is t ≤I L And judging that the motor works abnormally so that the rotary valve is not rotated in place.
12. The control method of a food processor as defined in claim 11, further comprising: in the process that the motor drives the rotary valve to rotate, the rotary valve starts to rotate for a first preset time T 0 Then, real-time detection of the working current I of the motor is started t And according to said operating current I t The position of the rotary valve is identified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010103710.2A CN113273905B (en) | 2020-02-20 | 2020-02-20 | Control method of food processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010103710.2A CN113273905B (en) | 2020-02-20 | 2020-02-20 | Control method of food processor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113273905A CN113273905A (en) | 2021-08-20 |
| CN113273905B true CN113273905B (en) | 2022-11-04 |
Family
ID=77274962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010103710.2A Active CN113273905B (en) | 2020-02-20 | 2020-02-20 | Control method of food processor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113273905B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6254058B1 (en) * | 2000-04-25 | 2001-07-03 | Eaton Corporation | Spring returning a rotary valve with a differential planetary drive |
| CN204922159U (en) * | 2015-09-16 | 2015-12-30 | 西北民族大学 | Valve controlling means |
| CN105909854A (en) * | 2016-05-23 | 2016-08-31 | 长安益阳发电有限公司 | Valve control device and control method thereof |
| JP2017180752A (en) * | 2016-03-31 | 2017-10-05 | 株式会社キッツ | Electric valve control device, electric valve control method and electric valve |
| CN107606300A (en) * | 2017-09-22 | 2018-01-19 | 九阳股份有限公司 | A kind of plasma discharge rotary valve control method of food processor |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05256544A (en) * | 1992-03-12 | 1993-10-05 | Toshiba Corp | Controlling device for electronic expansion valve of refrigerator |
| UA84563C2 (en) * | 2005-11-29 | 2008-11-10 | Сергей Федорович Петренко | Motor valve with rotating plug |
| CN201737891U (en) * | 2010-04-08 | 2011-02-09 | 河北钢铁股份有限公司唐山分公司 | Decompression maintenance device for rotary sealing valve in coke dry quenching |
| JP5793400B2 (en) * | 2011-11-04 | 2015-10-14 | アズビル株式会社 | Electric actuator |
| CN102889421A (en) * | 2012-10-18 | 2013-01-23 | 天津市金凤科技发展有限公司 | Water meter valve detection circuit |
| CN104807651B (en) * | 2014-03-26 | 2017-11-21 | 浙江万向精工有限公司 | A kind of electronic brake system functional failure of electromechanical diagnostic method |
| CN105626929A (en) * | 2016-03-19 | 2016-06-01 | 佛山市云米电器科技有限公司 | Electrically operated valve and control method thereof |
| CN107319961B (en) * | 2017-07-25 | 2020-03-24 | 九阳股份有限公司 | Food processor rotary valve control method |
| CN107559489B (en) * | 2017-10-20 | 2019-07-19 | 海盐星创电子有限公司 | A kind of detection method of gas meter valve holding function |
| CN110617362A (en) * | 2019-09-11 | 2019-12-27 | 福建福清核电有限公司 | Method for detecting state of electric valve |
-
2020
- 2020-02-20 CN CN202010103710.2A patent/CN113273905B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6254058B1 (en) * | 2000-04-25 | 2001-07-03 | Eaton Corporation | Spring returning a rotary valve with a differential planetary drive |
| CN204922159U (en) * | 2015-09-16 | 2015-12-30 | 西北民族大学 | Valve controlling means |
| JP2017180752A (en) * | 2016-03-31 | 2017-10-05 | 株式会社キッツ | Electric valve control device, electric valve control method and electric valve |
| CN105909854A (en) * | 2016-05-23 | 2016-08-31 | 长安益阳发电有限公司 | Valve control device and control method thereof |
| CN107606300A (en) * | 2017-09-22 | 2018-01-19 | 九阳股份有限公司 | A kind of plasma discharge rotary valve control method of food processor |
Non-Patent Citations (1)
| Title |
|---|
| 流量控制阀堵转保护装置的设计;付光杰等;《国外电子测量技术》;20180115(第01期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113273905A (en) | 2021-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2017347333B2 (en) | Fresh air handling unit control method and fresh air handling unit | |
| CN104572399B (en) | A kind of temprature control method and electronic equipment | |
| US8425202B2 (en) | Modular, universal and automatic closed-loop pump pressure controller | |
| CN109682018B (en) | Control method and control device of heating system and air conditioner | |
| CN113273905B (en) | Control method of food processor | |
| WO2023116463A1 (en) | Control method and apparatus for air conditioner, and air conditioner and storage medium | |
| EP3450867B1 (en) | Air conditioner | |
| CN107436575A (en) | Power failure protection method and household appliance | |
| WO1999043882A1 (en) | Sewing machine controller | |
| JPH1090794A (en) | Projector device with louver control function and temperature control method thereof | |
| CN108800425B (en) | Control method and device for preventing frequent start and stop of air conditioner and air conditioner | |
| US5938984A (en) | Temperature regulating method of a humidifier according to a surrounding temperature | |
| CN112665298A (en) | Refrigerator air door fault detection method and device, controller and refrigerator | |
| JPH08178508A (en) | Defroster for indirect cooling type refrigerator | |
| CN113606739B (en) | Control method and device for air conditioner shutdown differential pressure balance and multi-split air conditioner | |
| US20070206464A1 (en) | Apparatus and method for choosing target write strategy in optical storage system | |
| US11236919B2 (en) | Heat exchanging unit, a heat exchanging system and a method of determining failure of a control valve therein | |
| CN114688328B (en) | Food processor and rotary valve position control method thereof | |
| JP6853368B2 (en) | Power tools and control circuits and control methods for power tools | |
| JPH0684837B2 (en) | Air conditioner | |
| WO2020008495A1 (en) | Refrigeration cycle device, air conditioner device, and water heater | |
| JP2005351575A (en) | Air conditioning system | |
| CN113545686B (en) | Control method of food processing machine | |
| KR101902385B1 (en) | Position detector for driver of flow control member | |
| KR100317899B1 (en) | Driving device and driving method of constant temperature control system using heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |