CN110618622A - Control method and control device of cooking equipment, storage medium and cooking equipment - Google Patents

Control method and control device of cooking equipment, storage medium and cooking equipment Download PDF

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Publication number
CN110618622A
CN110618622A CN201810637569.7A CN201810637569A CN110618622A CN 110618622 A CN110618622 A CN 110618622A CN 201810637569 A CN201810637569 A CN 201810637569A CN 110618622 A CN110618622 A CN 110618622A
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CN
China
Prior art keywords
pwm
current
range
actual
target
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Granted
Application number
CN201810637569.7A
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Chinese (zh)
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CN110618622B (en
Inventor
汪钊
周升
曾燕侠
孟宪昕
李娟�
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Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
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Foshan Shunde Midea Electrical Heating Appliances Manufacturing Co Ltd
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Priority to CN201810637569.7A priority Critical patent/CN110618622B/en
Publication of CN110618622A publication Critical patent/CN110618622A/en
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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
    • A47J27/00—Cooking-vessels
    • A47J27/002—Construction of cooking-vessels; Methods or processes of manufacturing specially adapted for cooking-vessels
    • 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
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423—Input/output
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/26—Pc applications
    • G05B2219/2643—Oven, cooking

Abstract

The invention provides a control method of cooking equipment, which comprises the following steps: acquiring a target PWM range corresponding to the current power gear of the cooking equipment in a plurality of prestored PWM ranges; controlling the cooking equipment to operate according to the PWM in the target PWM range; acquiring the actual working voltage of the cooking equipment; adjusting a target PWM range according to the actual working voltage and the rated working voltage of the cooking equipment to obtain a current PWM range; and controlling the cooking equipment to operate according to the PWM in the current PWM range. Correspondingly, a control device of the cooking device, a computer readable storage medium and the cooking device are also provided. According to the technical scheme, the actual operating power of the cooking equipment is limited according to the current PWM range corresponding to the actual operating voltage, the problem of power deviation caused by current sampling errors is solved, and the consistency of the actual operating power of the cooking equipment is improved.

Description

Control method and control device of cooking equipment, storage medium and cooking equipment
Technical Field
The invention relates to the technical field of household appliances, in particular to a control method of a cooking device, a control device of the cooking device, a computer readable storage medium and the cooking device.
Background
At present, the operating power of a heating device of a cooking device is controlled by sampling voltage and current and further controlling the product of the voltage and the current, wherein the current sampling circuit converts the current flowing through a sampling resistor into a voltage signal, then amplifies the voltage signal, inputs the voltage signal into an MCU (micro controller Unit) after filtering, and the current sampling consistency is not high during batch production due to the influence of sampling resistor errors, amplifier errors and electromagnetic interference, thereby causing poor power consistency of the cooking device.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
Therefore, an object of the present invention is to provide a new method for controlling a cooking device, which limits an actual operating power of the cooking device according to a current PWM range corresponding to an actual operating voltage, effectively solves a problem of a large operating power deviation of the cooking device due to an excessive error of current sampling, and improves consistency of the actual operating power of the cooking device.
Another object of the present invention is to provide a control device of a cooking apparatus, a computer readable storage medium and a cooking apparatus.
To achieve at least one of the above objects, according to a first aspect of the present invention, there is provided a control method of a cooking apparatus, including: acquiring a target PWM range corresponding to the current power gear of the cooking equipment in a plurality of prestored PWM ranges; controlling the cooking equipment to operate according to the PWM in the target PWM range; acquiring the actual working voltage of the cooking equipment; adjusting a target PWM range according to the actual working voltage and the rated working voltage of the cooking equipment to obtain a current PWM range; and controlling the cooking equipment to operate according to the PWM in the current PWM range.
In the technical scheme, it can be known that, in the operation process of the cooking device, the actual operation power of the cooking device is calculated by sampling voltage and current, and a large error is generated when current is sampled, so that the calculated actual operation power error is large, and the consistency of the actual operation power of the cooking device is affected, therefore, the corresponding relationship between the PWN range and the power gear is pre-stored in the cooking device, after the current power gear adopted by the cooking device is determined, a target PWM range corresponding to the current power gear can be obtained in a plurality of pre-stored PWM ranges, and further, the operation of the cooking device is controlled according to the PWM in the obtained target PWM range, further, in the use process of the cooking device, the actual operation voltage and the rated operation voltage of the cooking device can have a deviation, and therefore, the target PWM range needs to be adjusted according to the actual operation voltage and the rated operation voltage of the cooking device, and the cooking equipment is controlled to operate according to the PWM in the current PWM range obtained after the adjustment is completed, so that the actual operating power of the cooking equipment can be limited according to the current PWM range, the problem of large deviation of the actual operating power of the cooking equipment caused by overlarge error in current sampling is effectively solved, and the consistency of the actual operating power of the cooking equipment is improved.
In the above technical solution, preferably, the step of adjusting the target PWM range according to the actual operating voltage and the rated operating voltage of the cooking device to obtain the current PWM range specifically includes: judging whether the actual working voltage is greater than the rated working voltage or not; if so, respectively subtracting a first correction value from the upper limit PWM and the lower limit PWM of the target PWM range, and taking the obtained first PWM range as the current PWM range; and if not, respectively adding a second correction value to the upper limit PWM and the lower limit PWM of the target PWM range, and taking the obtained second PWM range as the current PWM range.
In the technical scheme, in order to reasonably adjust the target PWM range, a relationship between an actual operating voltage of the cooking device and a rated operating voltage needs to be determined, specifically, whether the actual operating voltage of the cooking device is greater than the rated operating voltage of the cooking device is determined, when it is determined that the actual operating voltage is greater than the rated operating voltage, if the cooking device is still controlled to operate according to the PWM in the target PWM range, an actual operating power of the cooking device is relatively large, so that a first correction value needs to be subtracted from an upper limit PWM and a lower limit PWM of the target PWM range respectively to obtain a current PWM range with an increased value range, and when it is determined that the actual operating voltage is not greater than the rated operating voltage, if the cooking device is still controlled to operate according to the PWM in the target PWM range, the operating power of the cooking device is relatively small, so that a second correction value needs to be added to the upper limit PWM and the lower limit PWM of the target PWM range respectively, and the current PWM range with the reduced value range is obtained, and the cooking equipment is controlled to operate through the adjusted current PWM range, so that the actual operating power of the cooking equipment is effectively limited.
In any of the above technical solutions, preferably, the first correction value is a product of a difference between the actual operating voltage and the rated operating voltage and a first preset coefficient, and the first preset coefficient is a constant; the second correction value is a product of a difference between the actual operating voltage and the rated operating voltage and a second preset coefficient, and the second preset coefficient is a constant.
In the technical scheme, the first correction value and the second correction value can be calculated through the actual working voltage and the rated working voltage of the cooking equipment and the corresponding preset coefficients, and because the rated working voltage and the preset coefficients of the cooking equipment are fixed values, the first correction value and the second correction value can be obtained only by acquiring the actual working voltage of the cooking equipment, so that the purpose of adjusting the target PWM range according to the actual working voltage of the cooking equipment is achieved.
In any of the above technical solutions, preferably, the step of controlling the operation of the cooking device according to the PWM in the current PWM range specifically includes: acquiring actual operation power and actual operation PWM of the cooking equipment; adjusting actual operation PWM according to the actual operation power and the target operation power corresponding to the current power gear to obtain the current operation PWM; and controlling the cooking equipment to operate according to the current operation PWM.
In the technical scheme, when the cooking device is controlled to operate according to the PWM in the current PWM range, in order to ensure consistency between the actual operating power and the rated operating power of the cooking device, the actual operating PWM for controlling the operation of the cooking device needs to be adjusted according to the actual operating power and the target operating power (namely, the rated operating power) corresponding to the current power gear of the cooking device, and the cooking device is controlled to operate according to the adjusted current operating PWM.
In any of the above technical solutions, preferably, the step of adjusting the actual operation PWM according to the target operation power corresponding to the actual operation power and the current power gear to obtain the current operation PWM specifically includes: when the actual operation power is smaller than the target operation power, adding a third correction value to the actual operation PWM to obtain a first operation PWM; judging whether the first running PWM is larger than the upper limit PWM of the current PWM range; if so, determining the upper limit PWM of the current PWM range as the current operation PWM, otherwise, determining the first operation PWM as the current operation PWM; wherein the third correction value is a constant.
In the technical scheme, when the actual operation power of the cooking equipment is smaller than the target operation power corresponding to the current power gear, the actual operation PWM for controlling the operation of the cooking equipment is smaller, therefore, the actual operation PWM is added with a third correction value to obtain a first operation PWM, and then whether the first operation PWM belongs to the current PWM range is judged to prevent the first operation PWM from exceeding the current PWM range and influencing the limitation on the actual operation power of the cooking equipment, specifically, when the first operation PWM is larger than the upper limit PWM of the current PWM range, the first operation PWM is beyond the current PWM range, and then the upper limit PWM of the current PWM range is used as the current operation PWM to control the operation of the cooking equipment, if the first operation PWM is smaller than or equal to the upper limit of the current PWM range, the first operation PWM is still in the current PWM range, and then the first operation PWM is determined as the current operation PWM to control the operation of the cooking equipment, so as to ensure the safety of the operation of the cooking equipment.
In any of the above technical solutions, preferably, the step of adjusting the actual operation PWM according to the target operation power corresponding to the actual operation power and the current power gear to obtain the current operation PWM specifically includes: when the actual operation power is larger than the target operation power, subtracting a fourth correction value from the actual operation PWM to obtain a second operation PWM; judging whether the second operation PWM is smaller than the lower limit PWM of the current PWM range; if so, determining the lower limit PWM of the current PWM range as the current operation PWM, otherwise, determining the second operation PWM as the current PWM; wherein the fourth correction value is a constant.
In the technical scheme, when the actual operation power of the cooking equipment is greater than the target operation power corresponding to the current power gear, the actual operation PWM for controlling the operation of the cooking equipment is larger, therefore, a fourth correction value is subtracted from the actual operation PWM to obtain a second operation PWM, and whether the second operation PWM belongs to the current PWM range is judged to prevent the second operation PWM from exceeding the current PWM range and influencing the limitation on the actual operation power of the cooking equipment, specifically, when the second operation PWM is greater than or equal to the lower limit PWM of the current PWM range, the second operation PWM is still in the current PWM range, and the second operation PWM is used as the current operation PWM to control the operation of the cooking equipment, and when the second operation PWM is smaller than the lower limit of the current PWM range, the second operation PWM is beyond the current PWM range, and the lower limit PWM of the current PWM range is determined as the current operation PWM to control the operation of the cooking equipment, to ensure the normal operation of the cooking device.
According to a second aspect of the present invention, there is provided a control device of a cooking apparatus, comprising: the first acquisition module is used for acquiring a target PWM range corresponding to the current power gear of the cooking equipment in a plurality of prestored PWM ranges; the first control module is used for controlling the cooking equipment to operate according to the PWM in the target PWM range; the second acquisition module is used for acquiring the actual working voltage of the cooking equipment; the adjusting module is used for adjusting a target PWM range according to the actual working voltage and the rated working voltage of the cooking equipment so as to obtain a current PWM range; and the second control module is used for controlling the cooking equipment to operate according to the PWM in the current PWM range.
In the technical scheme, it can be known that, in the operation process of the cooking device, the actual operation power of the cooking device is calculated by sampling voltage and current, and a large error is generated when current is sampled, so that the calculated actual operation power error is large, and the consistency of the actual operation power of the cooking device is affected, therefore, the corresponding relationship between the PWN range and the power gear is pre-stored in the cooking device, after the current power gear adopted by the cooking device is determined, a target PWM range corresponding to the current power gear can be obtained in a plurality of pre-stored PWM ranges, and further, the operation of the cooking device is controlled according to the PWM in the obtained target PWM range, further, in the use process of the cooking device, the actual operation voltage and the rated operation voltage of the cooking device can have a deviation, and therefore, the target PWM range needs to be adjusted according to the actual operation voltage and the rated operation voltage of the cooking device, and the cooking equipment is controlled to operate according to the PWM in the current PWM range obtained after the adjustment is completed, so that the actual operating power of the cooking equipment can be limited according to the current PWM range, the problem of large deviation of the actual operating power of the cooking equipment caused by overlarge error in current sampling is effectively solved, and the consistency of the actual operating power of the cooking equipment is improved.
In the above technical solution, preferably, the adjusting module specifically includes: the judgment submodule is used for judging whether the actual working voltage is greater than the rated working voltage or not; the first adjusting submodule is used for respectively subtracting a first correction value from the upper limit PWM and the lower limit PWM of the target PWM range when the judging submodule judges that the actual working voltage is larger than the rated working voltage, and taking the obtained first PWM range as the current PWM range; and the second adjusting submodule is used for respectively adding a second correction value to the upper limit PWM and the lower limit PWM of the target PWM range when the judging submodule judges that the actual working voltage is less than or equal to the rated working voltage, and taking the obtained second PWM range as the current PWM range.
In the technical scheme, in order to reasonably adjust the target PWM range, a relationship between an actual operating voltage of the cooking device and a rated operating voltage needs to be determined, specifically, whether the actual operating voltage of the cooking device is greater than the rated operating voltage of the cooking device is determined, when it is determined that the actual operating voltage is greater than the rated operating voltage, if the cooking device is still controlled to operate according to the PWM in the target PWM range, an actual operating power of the cooking device is relatively large, so that a first correction value needs to be subtracted from an upper limit PWM and a lower limit PWM of the target PWM range respectively to obtain a current PWM range with an increased value range, and when it is determined that the actual operating voltage is not greater than the rated operating voltage, if the cooking device is still controlled to operate according to the PWM in the target PWM range, the operating power of the cooking device is relatively small, so that a second correction value needs to be added to the upper limit PWM and the lower limit PWM of the target PWM range respectively, and the current PWM range with the reduced value range is obtained, and the cooking equipment is controlled to operate through the adjusted current PWM range, so that the actual operating power of the cooking equipment is effectively limited.
In any of the above technical solutions, preferably, the first correction value is a product of a difference between the actual operating voltage and the rated operating voltage and a first preset coefficient, and the first preset coefficient is a constant; the second correction value is a product of a difference between the actual operating voltage and the rated operating voltage and a second preset coefficient, and the second preset coefficient is a constant.
In the technical scheme, the first correction value and the second correction value can be calculated through the actual working voltage and the rated working voltage of the cooking equipment and the corresponding preset coefficients, and because the rated working voltage and the preset coefficients of the cooking equipment are fixed values, the first correction value and the second correction value can be obtained only by acquiring the actual working voltage of the cooking equipment, so that the purpose of adjusting the target PWM range according to the actual working voltage of the cooking equipment is achieved.
In any of the above technical solutions, preferably, the second control module specifically includes: the acquisition submodule is used for acquiring the actual operation power and the actual operation PWM of the cooking equipment; the third adjusting submodule is used for adjusting the actual operation PWM according to the actual operation power and the target operation power corresponding to the current power gear so as to obtain the current operation PWM; and the control submodule is used for controlling the cooking equipment to operate according to the current operation PWM.
In the technical scheme, when the cooking device is controlled to operate according to the PWM in the current PWM range, in order to ensure consistency between the actual operating power and the rated operating power of the cooking device, the actual operating PWM for controlling the operation of the cooking device needs to be adjusted according to the actual operating power and the target operating power (namely, the rated operating power) corresponding to the current power gear of the cooking device, and the cooking device is controlled to operate according to the adjusted current operating PWM.
In any of the above technical solutions, preferably, the third adjusting submodule is specifically configured to: when the actual operation power is smaller than the target operation power, adding a third correction value to the actual operation PWM to obtain a first operation PWM; judging whether the first running PWM is larger than the upper limit PWM of the current PWM range; if so, determining the upper limit PWM of the current PWM range as the current operation PWM, otherwise, determining the first operation PWM as the current operation PWM; wherein the third correction value is a constant.
In the technical scheme, when the actual operation power of the cooking equipment is smaller than the target operation power corresponding to the current power gear, the actual operation PWM for controlling the operation of the cooking equipment is smaller, therefore, the actual operation PWM is added with a third correction value to obtain a first operation PWM, and then whether the first operation PWM belongs to the current PWM range is judged to prevent the first operation PWM from exceeding the current PWM range and influencing the limitation on the actual operation power of the cooking equipment, specifically, when the first operation PWM is larger than the upper limit PWM of the current PWM range, the first operation PWM is beyond the current PWM range, and then the upper limit PWM of the current PWM range is used as the current operation PWM to control the operation of the cooking equipment, if the first operation PWM is smaller than or equal to the upper limit of the current PWM range, the first operation PWM is still in the current PWM range, and then the first operation PWM is determined as the current operation PWM to control the operation of the cooking equipment, so as to ensure the safety of the operation of the cooking equipment.
In any of the above technical solutions, preferably, the third adjusting submodule is specifically configured to: when the actual operation power is larger than the target operation power, subtracting a fourth correction value from the actual operation PWM to obtain a second operation PWM; judging whether the second operation PWM is smaller than the lower limit PWM of the current PWM range; if so, determining the lower limit PWM of the current PWM range as the current operation PWM, otherwise, determining the second operation PWM as the current PWM; wherein the fourth correction value is a constant.
In the technical scheme, when the actual operation power of the cooking equipment is greater than the target operation power corresponding to the current power gear, the actual operation PWM for controlling the operation of the cooking equipment is larger, therefore, a fourth correction value is subtracted from the actual operation PWM to obtain a second operation PWM, and whether the second operation PWM belongs to the current PWM range is judged to prevent the second operation PWM from exceeding the current PWM range and influencing the limitation on the actual operation power of the cooking equipment, specifically, when the second operation PWM is greater than or equal to the lower limit PWM of the current PWM range, the second operation PWM is still in the current PWM range, and the second operation PWM is used as the current operation PWM to control the operation of the cooking equipment, and when the second operation PWM is smaller than the lower limit of the current PWM range, the second operation PWM is beyond the current PWM range, and the lower limit PWM of the current PWM range is determined as the current operation PWM to control the operation of the cooking equipment, to ensure the normal operation of the cooking device.
According to a third aspect of the present invention, there is provided a control device of a cooking apparatus, comprising: a processor; a memory for storing executable instructions of a processor, wherein the processor is configured to implement the steps of the control method of the cooking apparatus according to any one of the above aspects of the first aspect when executing the executable instructions stored in the memory.
According to a fourth aspect of the present invention, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of controlling a cooking apparatus as set forth in any one of the above aspects of the first aspect.
According to a fifth aspect of the present invention, there is provided a cooking apparatus comprising: the control device of a cooking apparatus according to any one of the second aspect and the third aspect.
Optionally, the cooking device is an induction cooker, an induction pressure cooker, an induction cooker, or the like.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart illustrating a control method of a cooking apparatus according to a first embodiment of the present invention;
FIG. 2 illustrates a flow diagram for controlling operation of a cooking appliance according to PWM in a current PWM range according to an embodiment of the present invention;
fig. 3 shows a schematic block diagram of a control device of a cooking apparatus according to a first embodiment of the present invention;
FIG. 4 shows a schematic block diagram of the adjustment module shown in FIG. 3;
FIG. 5 shows a schematic block diagram of the second control module shown in FIG. 3;
fig. 6 is a flowchart illustrating a control method of a cooking apparatus according to a second embodiment of the present invention;
fig. 7 shows a schematic block diagram of a control device of a cooking apparatus according to a second embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
A control method of a cooking apparatus according to a first embodiment of the present invention will be described in detail with reference to fig. 1 and 2.
As shown in fig. 1, the method for controlling a cooking apparatus according to the first embodiment of the present invention specifically includes the following steps:
and 102, acquiring a target PWM range corresponding to the current power gear of the cooking equipment in a plurality of pre-stored PWM ranges.
And 104, controlling the cooking equipment to operate according to the PWM in the target PWM range.
And 106, acquiring the actual working voltage of the cooking equipment.
And step 108, adjusting the target PWM range according to the actual working voltage and the rated working voltage of the cooking equipment to obtain the current PWM range.
And step 110, controlling the cooking equipment to operate according to the PWM in the current PWM range.
In this embodiment, it is known that, in the operation process of the cooking apparatus, the actual operating power of the cooking apparatus is calculated by sampling the voltage and the current, and a large error may be generated when the current is sampled, so that the calculated actual operating power error is large, and the consistency of the actual operating power of the cooking apparatus is affected, therefore, a corresponding relationship between a PWN range and a power gear is pre-stored in the cooking apparatus, after a current power gear adopted by the cooking apparatus is determined, a target PWM range corresponding to the current power gear can be obtained in a plurality of pre-stored PWM ranges, and the operation of the cooking apparatus is controlled according to the PWM in the obtained target PWM range, further, in the use process of the cooking apparatus, the actual operating voltage and the rated operating voltage of the cooking apparatus may have a deviation, and therefore, the target PWM range needs to be adjusted according to the actual operating voltage and the rated operating voltage of the cooking apparatus, and the cooking equipment is controlled to operate according to the PWM in the current PWM range obtained after the adjustment is completed, so that the actual operating power of the cooking equipment can be limited according to the current PWM range, the problem of large deviation of the actual operating power of the cooking equipment caused by overlarge error in current sampling is effectively solved, and the consistency of the actual operating power of the cooking equipment is improved.
Further, in the above embodiment, step 104 specifically includes: judging whether the actual working voltage is greater than the rated working voltage or not; if so, respectively subtracting a first correction value from the upper limit PWM and the lower limit PWM of the target PWM range, and taking the obtained first PWM range as the current PWM range; and if not, respectively adding a second correction value to the upper limit PWM and the lower limit PWM of the target PWM range, and taking the obtained second PWM range as the current PWM range.
In this embodiment, in order to reasonably adjust the target PWM range, it is necessary to determine a magnitude relationship between an actual operating voltage of the cooking apparatus and a rated operating voltage, specifically, determine whether the actual operating voltage of the cooking apparatus is greater than the rated operating voltage of the cooking apparatus, when it is determined that the actual operating voltage is greater than the rated operating voltage, if the cooking apparatus is still controlled to operate according to the PWM in the target PWM range, the actual operating power of the cooking apparatus will be larger, and therefore, a first correction value needs to be subtracted from an upper limit PWM and a lower limit PWM of the target PWM range, respectively, to obtain a current PWM range with an increased value range, and when it is determined that the actual operating voltage is not greater than the rated operating voltage, if the cooking apparatus is still controlled to operate according to the PWM in the target PWM range, the operating power of the cooking apparatus will be smaller, and therefore, a second correction value needs to be added to the upper limit PWM and the lower limit PWM of the target, and the current PWM range with the reduced value range is obtained, and the cooking equipment is controlled to operate through the adjusted current PWM range, so that the actual operating power of the cooking equipment is effectively limited.
Further, in the above embodiment, the first correction value is a product of a difference between the actual operating voltage and the rated operating voltage and a first preset coefficient, and the first preset coefficient is a constant; the second correction value is a product of a difference between the actual operating voltage and the rated operating voltage and a second preset coefficient, and the second preset coefficient is a constant.
In this embodiment, the first correction value and the second correction value can be calculated by using the actual working voltage of the cooking device, the rated working voltage of the cooking device and the corresponding preset coefficient, and since the rated working voltage of the cooking device and the preset coefficient are fixed values, the first correction value and the second correction value can be obtained by only obtaining the actual working voltage of the cooking device, so as to achieve the purpose of adjusting the target PWM range according to the actual working voltage of the cooking device.
Specifically, the first preset coefficient and the second preset coefficient are calculated according to parameters such as a capacitance value of a resonance capacitor in the cooking device, an inductance of the coil panel, a distance from the bottom of the cooker to the upper surface of the coil panel, and the like.
Further, in the above embodiment, step 110 may be specifically implemented as the flow steps shown in fig. 2, including:
and step S202, acquiring the actual operation power and the actual operation PWM of the cooking equipment.
And step S204, adjusting the actual operation PWM according to the target operation power corresponding to the actual operation power and the current power gear to obtain the current operation PWM.
And step S206, controlling the cooking equipment to operate according to the current operation PWM.
In this embodiment, when the cooking device is controlled to operate according to the PWM in the current PWM range, in order to ensure consistency between the actual operating power and the rated operating power of the cooking device, the actual operating PWM for controlling the operation of the cooking device needs to be adjusted according to the actual operating power and the target operating power (i.e., the rated operating power) corresponding to the current power gear of the cooking device, and the cooking device is controlled to operate according to the adjusted current operating PWM.
Further, in the above embodiment, step S204 specifically includes: when the actual operation power is smaller than the target operation power, adding a third correction value to the actual operation PWM to obtain a first operation PWM; judging whether the first running PWM is larger than the upper limit PWM of the current PWM range; if so, determining the upper limit PWM of the current PWM range as the current operation PWM, otherwise, determining the first operation PWM as the current operation PWM; wherein the third correction value is a constant.
In this embodiment, when the actual operating power of the cooking apparatus is less than the target operating power corresponding to the current power gear, it is determined that the actual operating PWM controlling the operation of the cooking apparatus is smaller, and therefore, the third correction value is added to the actual operating PWM to obtain a first operating PWM, and then it is determined whether the first operating PWM belongs to the current PWM range, so as to prevent the first operating PWM from exceeding the current PWM range and affecting the limitation of the actual operating power of the cooking apparatus, specifically, when the first operating PWM is greater than the upper limit PWM of the current PWM range, it is determined that the first operating PWM exceeds the current PWM range, and then the upper limit PWM of the current PWM range is used as the current operating PWM to control the operation of the cooking apparatus, and if the first operating PWM is less than or equal to the upper limit PWM of the current PWM range, it is determined that the first operating PWM is still within the current PWM range, and then the first operating PWM is determined as the current operating PWM to control the operation of the, so as to ensure the safety of the operation of the cooking equipment.
Specifically, the third correction value is preferably a constant in the range of 1 to 10, but the third correction value may be set to other specific values according to actual conditions.
Further, in the above embodiment, step S204 specifically includes: when the actual operation power is larger than the target operation power, subtracting a fourth correction value from the actual operation PWM to obtain a second operation PWM; judging whether the second operation PWM is smaller than the lower limit PWM of the current PWM range; if so, determining the lower limit PWM of the current PWM range as the current operation PWM, otherwise, determining the second operation PWM as the current PWM; wherein the fourth correction value is a constant.
In this embodiment, when the actual operating power of the cooking apparatus is greater than the target operating power corresponding to the current power gear, it is determined that the actual operating PWM controlling the operation of the cooking apparatus is greater, and therefore, the fourth correction value is subtracted from the actual operating PWM to obtain a second operating PWM, and then it is determined whether the second operating PWM belongs to the current PWM range, so as to prevent the second operating PWM from exceeding the current PWM range and affecting the limitation of the actual operating power of the cooking apparatus, specifically, when the second operating PWM is greater than or equal to the lower limit PWM of the current PWM range, it is determined that the second operating PWM is still within the current PWM range, and then the second operating PWM is used as the current operating PWM to control the operation of the cooking apparatus, and if the second operating PWM is less than the lower limit PWM of the current PWM range, it is determined that the second operating PWM exceeds the current PWM range, and then the lower limit PWM of the current PWM range is determined as the current operating PWM to control the operation of the cooking, to ensure the normal operation of the cooking device.
Specifically, the fourth correction value preferably takes a constant value in the range of 1 to 10, but of course, the fourth correction value may be set to other specific values according to actual conditions.
A control device of a cooking apparatus according to a first embodiment of the present invention will be specifically described with reference to fig. 3 to 5.
As shown in fig. 3, a control device 30 of a cooking apparatus according to a first embodiment of the present invention includes: a first acquisition module 300, a first control module 302, a second acquisition module 304, an adjustment module 306, and a second control module 308.
The first obtaining module 300 is configured to obtain a target PWM range corresponding to a current power gear of the cooking apparatus in a plurality of pre-stored PWM ranges; the first control module 302 is used for controlling the operation of the cooking equipment according to the PWM in the target PWM range; the second obtaining module 304 is used for obtaining the actual working voltage of the cooking device; the adjusting module 306 is configured to adjust a target PWM range according to the actual working voltage and a rated working voltage of the cooking device to obtain a current PWM range; the second control module 308 is used to control the operation of the cooking appliance according to the PWM in the current PWM range.
In this embodiment, it is known that, in the operation process of the cooking apparatus, the actual operating power of the cooking apparatus is calculated by sampling the voltage and the current, and a large error may be generated when the current is sampled, so that the calculated actual operating power error is large, and the consistency of the actual operating power of the cooking apparatus is affected, therefore, a corresponding relationship between a PWN range and a power gear is pre-stored in the cooking apparatus, after a current power gear adopted by the cooking apparatus is determined, a target PWM range corresponding to the current power gear can be obtained in a plurality of pre-stored PWM ranges, and the operation of the cooking apparatus is controlled according to the PWM in the obtained target PWM range, further, in the use process of the cooking apparatus, the actual operating voltage and the rated operating voltage of the cooking apparatus may have a deviation, and therefore, the target PWM range needs to be adjusted according to the actual operating voltage and the rated operating voltage of the cooking apparatus, and the cooking equipment is controlled to operate according to the PWM in the current PWM range obtained after the adjustment is completed, so that the actual operating power of the cooking equipment can be limited according to the current PWM range, the problem of large deviation of the actual operating power of the cooking equipment caused by overlarge error in current sampling is effectively solved, and the consistency of the actual operating power of the cooking equipment is improved.
Further, in the above embodiment, the adjusting module 306 specifically includes: a determination submodule 3062, a first adjustment submodule 3064, and a second adjustment submodule 3066, as shown in fig. 4.
The judging submodule 3062 is used for judging whether the actual working voltage is larger than the rated working voltage; the first adjusting submodule 3064 is configured to, when the determining submodule 3062 determines that the actual working voltage is greater than the rated working voltage, subtract the first correction value from the upper limit PWM and the lower limit PWM of the target PWM range, and take the obtained first PWM range as the current PWM range; the second adjusting submodule 3066 is configured to add a second correction value to the upper limit PWM and the lower limit PWM of the target PWM range, respectively, and take the obtained second PWM range as the current PWM range, when the determining submodule 3062 determines that the actual operating voltage is less than or equal to the rated operating voltage.
In this embodiment, in order to reasonably adjust the target PWM range, it is necessary to determine a magnitude relationship between an actual operating voltage of the cooking apparatus and a rated operating voltage, specifically, determine whether the actual operating voltage of the cooking apparatus is greater than the rated operating voltage of the cooking apparatus, when it is determined that the actual operating voltage is greater than the rated operating voltage, if the cooking apparatus is still controlled to operate according to the PWM in the target PWM range, the actual operating power of the cooking apparatus will be larger, and therefore, a first correction value needs to be subtracted from an upper limit PWM and a lower limit PWM of the target PWM range, respectively, to obtain a current PWM range with an increased value range, and when it is determined that the actual operating voltage is not greater than the rated operating voltage, if the cooking apparatus is still controlled to operate according to the PWM in the target PWM range, the operating power of the cooking apparatus will be smaller, and therefore, a second correction value needs to be added to the upper limit PWM and the lower limit PWM of the target, and the current PWM range with the reduced value range is obtained, and the cooking equipment is controlled to operate through the adjusted current PWM range, so that the actual operating power of the cooking equipment is effectively limited.
Further, in the above embodiment, the first correction value is a product of a difference between the actual operating voltage and the rated operating voltage and a first preset coefficient, and the first preset coefficient is a constant; the second correction value is a product of a difference between the actual operating voltage and the rated operating voltage and a second preset coefficient, and the second preset coefficient is a constant.
In this embodiment, the first correction value and the second correction value can be calculated by using the actual working voltage of the cooking device, the rated working voltage of the cooking device and the corresponding preset coefficient, and since the rated working voltage of the cooking device and the preset coefficient are fixed values, the first correction value and the second correction value can be obtained by only obtaining the actual working voltage of the cooking device, so as to achieve the purpose of adjusting the target PWM range according to the actual working voltage of the cooking device.
Specifically, the first preset coefficient and the second preset coefficient are calculated according to parameters such as a capacitance value of a resonance capacitor in the cooking device, an inductance of the coil panel, a distance from the bottom of the cooker to the upper surface of the coil panel, and the like.
Further, in the above embodiment, the second control module 308 specifically includes: an acquisition submodule 3082, a third adjustment submodule 3084 and a control submodule 3086, as shown in fig. 5.
The obtaining submodule 3082 is used for obtaining actual operation power and actual operation PWM of the cooking device; the third adjusting submodule 3084 is configured to adjust the actual operating PWM according to the target operating power corresponding to the actual operating power and the current power gear, so as to obtain the current operating PWM; control submodule 3086 is configured to control operation of the cooking appliance according to the current operating PWM.
In this embodiment, when the cooking device is controlled to operate according to the PWM in the current PWM range, in order to ensure consistency between the actual operating power and the rated operating power of the cooking device, the actual operating PWM for controlling the operation of the cooking device needs to be adjusted according to the actual operating power and the target operating power (i.e., the rated operating power) corresponding to the current power gear of the cooking device, and the cooking device is controlled to operate according to the adjusted current operating PWM.
Further, in the above embodiment, the third adjusting submodule 3084 is specifically configured to: when the actual operation power is smaller than the target operation power, adding a third correction value to the actual operation PWM to obtain a first operation PWM; judging whether the first running PWM is larger than the upper limit PWM of the current PWM range; if so, determining the upper limit PWM of the current PWM range as the current operation PWM, otherwise, determining the first operation PWM as the current operation PWM; wherein the third correction value is a constant.
In this embodiment, when the actual operating power of the cooking apparatus is less than the target operating power corresponding to the current power gear, it is determined that the actual operating PWM controlling the operation of the cooking apparatus is smaller, and therefore, the third correction value is added to the actual operating PWM to obtain a first operating PWM, and then it is determined whether the first operating PWM belongs to the current PWM range, so as to prevent the first operating PWM from exceeding the current PWM range and affecting the limitation of the actual operating power of the cooking apparatus, specifically, when the first operating PWM is greater than the upper limit PWM of the current PWM range, it is determined that the first operating PWM exceeds the current PWM range, and then the upper limit PWM of the current PWM range is used as the current operating PWM to control the operation of the cooking apparatus, and if the first operating PWM is less than or equal to the upper limit PWM of the current PWM range, it is determined that the first operating PWM is still within the current PWM range, and then the first operating PWM is determined as the current operating PWM to control the operation of the, so as to ensure the safety of the operation of the cooking equipment.
Specifically, the third correction value is preferably a constant in the range of 1 to 10, but the third correction value may be set to other specific values according to actual conditions.
Further, in the above embodiment, the third adjusting submodule 3084 is specifically configured to: when the actual operation power is larger than the target operation power, subtracting a fourth correction value from the actual operation PWM to obtain a second operation PWM; judging whether the second operation PWM is smaller than the lower limit PWM of the current PWM range; if so, determining the lower limit PWM of the current PWM range as the current operation PWM, otherwise, determining the second operation PWM as the current PWM; wherein the fourth correction value is a constant.
In this embodiment, when the actual operating power of the cooking apparatus is greater than the target operating power corresponding to the current power gear, it is determined that the actual operating PWM controlling the operation of the cooking apparatus is greater, and therefore, the fourth correction value is subtracted from the actual operating PWM to obtain a second operating PWM, and then it is determined whether the second operating PWM belongs to the current PWM range, so as to prevent the second operating PWM from exceeding the current PWM range and affecting the limitation of the actual operating power of the cooking apparatus, specifically, when the second operating PWM is greater than or equal to the lower limit PWM of the current PWM range, it is determined that the second operating PWM is still within the current PWM range, and then the second operating PWM is used as the current operating PWM to control the operation of the cooking apparatus, and if the second operating PWM is less than the lower limit PWM of the current PWM range, it is determined that the second operating PWM exceeds the current PWM range, and then the lower limit PWM of the current PWM range is determined as the current operating PWM to control the operation of the cooking, to ensure the normal operation of the cooking device.
Specifically, the fourth correction value preferably takes a constant value in the range of 1 to 10, but of course, the fourth correction value may be set to other specific values according to actual conditions.
The first control module 302, the second obtaining module 304, the adjusting module 306, and the second control module 308 may be a CPU, an MCU, a single chip microcomputer, an embedded device, and the like that are integrated with or compatible with the control device 20 of the cooking apparatus, wherein the determining submodule 2082 may be a comparator, the first adjusting submodule 3064, the second adjusting submodule 3066, and the third adjusting submodule 3084 may be an adder and a subtractor, the first obtaining module 300, the obtaining submodule 3082 may be a data collector, and the control submodule 3086 may be a controller.
A method for controlling a cooking apparatus according to a second embodiment of the present invention will be described in detail with reference to fig. 6.
It can know, in the electromagnetism cooking equipment operation process, calculate the actual operating power of electromagnetism cooking equipment through the voltage and the electric current of sampling electromagnetism cooking equipment, however, the electric current of sampling can have the great problem of error, and the rated power uniformity that leads to the actual operating power of the electromagnetism cooking equipment who calculates and electromagnetism cooking equipment is relatively poor, consequently, in the MCU of electromagnetism cooking equipment, the biggest PWM and the minimum PWM that each power gear that predetermine corresponds, and at different at actual voltage, compensate biggest PWM and minimum PWM, in order to inject the actual operating power of electromagnetism cooking equipment in certain within range, and then promote the uniformity of the actual operating power of electromagnetism cooking equipment.
Specifically, as shown in fig. 6, the method includes the following process steps:
step S601, presetting rated working voltage V0Under the condition, the maximum PWM corresponding to the power gear N is PWM _ MAX _ N, and the minimum PWM is PWM _ MIN _ N.
Specifically, the method comprises the following steps:
the maximum PWM corresponding to the gear 1 is PWM _ MAX _1, and the minimum PWM is PWM _ MIN _ 1;
the maximum PWM corresponding to the gear 2 is PWM _ MAX _2, and the minimum PWM is PWM _ MIN _ 2;
…
the maximum PWM corresponding to the gear N is PWM _ MAX _ N, and the minimum PWM is PWM _ MIN _ N.
Step S602, reading an actual operating voltage V of the electromagnetic cooking apparatus.
Step S603, judging the actual workWhether the working voltage V is greater than the rated working voltage V0If yes, go to step S604, otherwise go to step S605.
Step S604, subtracting the actual working voltage V and the rated working voltage V from the maximum PWM and the minimum PWM corresponding to the power gear N respectively0Is multiplied by a coefficient k (i.e., a first predetermined coefficient and a second predetermined coefficient) (i.e., a first correction value and a second correction value).
Namely: PWM _ MAX _ N ═ PWM _ MAX _ N- (V-V)0)×k；
PWM_MIN_N＝PWM_MIN_N-(V-V0)×k。
Specifically, the coefficient k is calculated according to parameters such as a capacitance value of a resonance capacitor in the electromagnetic cooking device, an inductance of the coil panel, a distance from the bottom of the pot to the upper surface of the coil panel, and the like.
Step S605, adding the actual working voltage V and the rated working voltage V to the maximum PWM and the minimum PWM corresponding to the power gear N respectively0The product of the difference of (a) and a coefficient k.
Namely: PWM _ MAX _ N ═ PWM _ MAX _ N + (V-V)0)×k；
PWM_MIN_N＝PWM_MIN_N+(V-V0)×k。
Step S606, reading the target running power P corresponding to the power gear N0。
In step S607, the current actual operating power P is sampled.
Step S608, determining whether the current actual operation power P is less than the target operation power P0If yes, go to step S609, otherwise go to step S612.
In step S609, it is determined whether the current PWM plus the coefficient X (i.e., the third correction value) is smaller than the PWM _ MAX _ N, if so, step S610 is executed, otherwise, step S611 is executed.
Specifically, the coefficient X preferably takes a constant value in the range of 1 to 10, but the third correction value may be set to other specific values according to actual conditions.
And step S610, controlling the electromagnetic cooking equipment to operate by taking the current PWM plus the coefficient X as a new current PWM.
And step S611, controlling the electromagnetic cooking device to operate by taking the PWM _ MAX _ N as the new current PWM.
In step S612, it is determined whether the current PWM minus the coefficient Y (i.e., the fourth correction value) is greater than the PWM _ MAX _ N, if so, step S613 is executed, otherwise, step S614 is executed.
Specifically, the coefficient Y preferably has a constant value in the range of 1 to 10, but the fourth correction value may be set to other specific values according to actual conditions.
It will be appreciated that if the actual operating power P is equal to the target operating power P0Then, the current PWM does not need to be adjusted.
And step S613, taking the current PWM minus coefficient Y as a new current PWM to control the operation of the electromagnetic cooking equipment.
And step S614, controlling the electromagnetic cooking equipment to operate by taking the PWM _ MIN _ N as the new current PWM.
According to the control method of the cooking equipment, the upper limit and the lower limit of the PWM are set at different power gears, the upper limit and the lower limit of the PWM are adjusted along with the change of the actual voltage, the range of the actual running power is limited through the range of the PWM, the problem of power deviation caused by errors in current sampling is solved, and the consistency of the actual running power of the electromagnetic cooking equipment is improved.
Fig. 7 shows a schematic block diagram of a control device of a cooking apparatus according to a second embodiment of the present invention.
As shown in fig. 7, the control device 70 of the cooking apparatus according to the second embodiment of the present invention comprises a processor 702 and a memory 704, wherein the memory 704 stores a computer program operable on the processor 702, wherein the memory 704 and the processor 702 can be connected by a bus, and the processor 702 is configured to implement the steps of the control method of the cooking apparatus as described in the above embodiments when executing the computer program stored in the memory 704.
The steps in the method of the embodiments of the present disclosure may be sequentially adjusted, combined, and deleted according to actual needs.
The units in the control device of the cooking apparatus of the embodiment of the present disclosure can be combined, divided, and deleted according to actual needs.
According to an embodiment of the present disclosure, a computer-readable storage medium is proposed, on which a computer program is stored, which, when being executed by a processor, realizes the steps of the control method of a cooking apparatus as described in the above embodiments.
Further, it will be understood that any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and that the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
As an embodiment of the present invention, there is also provided a cooking apparatus including the control device of the cooking apparatus described in any one of the above embodiments.
Optionally, the cooking device is an induction cooker, an induction pressure cooker, an induction cooker, or the like.
The technical scheme of the invention is described in detail in the above with reference to the accompanying drawings, and limits the actual operating power of the cooking equipment by adjusting the current PWM range according to the actual operating voltage, so that the problem of large deviation of the actual operating power of the cooking equipment caused by overlarge error in current sampling is effectively solved, and the consistency of the actual operating power of the cooking equipment is improved.
In the description of the present specification, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and specific meanings of the above terms in the disclosed embodiments may be understood according to specific situations by those of ordinary skill in the art.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (15)

1. A control method of a cooking apparatus, characterized by comprising:
acquiring a target PWM range corresponding to the current power gear of the cooking equipment in a plurality of prestored PWM ranges;
controlling the cooking equipment to operate according to the PWM in the target PWM range;
acquiring an actual working voltage of the cooking equipment;
adjusting the target PWM range according to the actual working voltage and the rated working voltage of the cooking equipment to obtain a current PWM range;
and controlling the cooking equipment to operate according to the PWM in the current PWM range.
2. The method for controlling a cooking apparatus according to claim 1, wherein the step of adjusting the target PWM range according to the actual operating voltage and the rated operating voltage of the cooking apparatus to obtain the current PWM range specifically comprises:
judging whether the actual working voltage is greater than the rated working voltage or not;
if so, respectively subtracting a first correction value from the upper limit PWM and the lower limit PWM of the target PWM range, and taking the obtained first PWM range as the current PWM range;
and if not, respectively adding a second correction value to the upper limit PWM and the lower limit PWM of the target PWM range, and taking the obtained second PWM range as the current PWM range.
3. The control method of a cooking apparatus according to claim 2,
the first correction value is the product of the difference value of the actual working voltage and the rated working voltage and a first preset coefficient, and the first preset coefficient is a constant;
the second correction value is a product of a difference value between the actual working voltage and the rated working voltage and a second preset coefficient, and the second preset coefficient is a constant.
4. The method for controlling the cooking apparatus according to any one of claims 1 to 3, wherein the step of controlling the operation of the cooking apparatus according to the PWM in the current PWM range specifically comprises:
acquiring actual operation power and actual operation PWM of the cooking equipment;
adjusting the actual operation PWM according to the actual operation power and the target operation power corresponding to the current power gear to obtain the current operation PWM;
and controlling the cooking equipment to operate according to the current operation PWM.
5. The method for controlling a cooking apparatus according to claim 4, wherein the step of adjusting the actual operation PWM according to the target operation power corresponding to the actual operation power and the current power gear to obtain the current operation PWM specifically comprises:
when the actual operation power is smaller than the target operation power, adding a third correction value to the actual operation PWM to obtain a first operation PWM;
judging whether the first running PWM is larger than the upper limit PWM of the current PWM range;
if so, determining the upper limit PWM of the current PWM range as the current operation PWM, otherwise, determining the first operation PWM as the current operation PWM;
wherein the third correction value is a constant.
6. The method for controlling a cooking apparatus according to claim 4, wherein the step of adjusting the actual operation PWM according to the target operation power corresponding to the actual operation power and the current power gear to obtain the current operation PWM specifically comprises:
when the actual operation power is larger than the target operation power, subtracting a fourth correction value from the actual operation PWM to obtain a second operation PWM;
judging whether the second operation PWM is smaller than the lower limit PWM of the current PWM range;
if so, determining the lower limit PWM of the current PWM range as the current operation PWM, otherwise, determining the second operation PWM as the current PWM;
wherein the fourth correction value is a constant.
7. A control device of a cooking apparatus, comprising:
the first acquisition module is used for acquiring a target PWM range corresponding to the current power gear of the cooking equipment in a plurality of prestored PWM ranges;
the first control module is used for controlling the cooking equipment to operate according to the PWM in the target PWM range;
the second acquisition module is used for acquiring the actual working voltage of the cooking equipment;
the adjusting module is used for adjusting the target PWM range according to the actual working voltage and the rated working voltage of the cooking equipment so as to obtain the current PWM range;
and the second control module is used for controlling the cooking equipment to operate according to the PWM in the current PWM range.
8. The control device of the cooking apparatus according to claim 7, wherein the adjusting module specifically comprises:
the judgment submodule is used for judging whether the actual working voltage is greater than the rated working voltage or not;
the first adjusting submodule is used for respectively subtracting a first correction value from the upper limit PWM and the lower limit PWM of the target PWM range when the judging submodule judges that the actual working voltage is larger than the rated working voltage, and taking the obtained first PWM range as the current PWM range;
and the second adjusting submodule is used for respectively adding a second correction value to the upper limit PWM and the lower limit PWM of the target PWM range when the judging submodule judges that the actual working voltage is less than or equal to the rated working voltage, and taking the obtained second PWM range as the current PWM range.
9. The control device of a cooking apparatus according to claim 8,
the first correction value is the product of the difference value of the actual working voltage and the rated working voltage and a first preset coefficient, and the first preset coefficient is a constant;
the second correction value is a product of a difference value between the actual working voltage and the rated working voltage and a second preset coefficient, and the second preset coefficient is a constant.
10. The control device of a cooking apparatus according to any one of claims 7 to 9, wherein the second control module specifically comprises:
the acquisition submodule is used for acquiring the actual operation power and the actual operation PWM of the cooking equipment;
the third adjusting submodule is used for adjusting the actual operation PWM according to the actual operation power and the target operation power corresponding to the current power gear so as to obtain the current operation PWM;
and the control submodule is used for controlling the cooking equipment to operate according to the current operation PWM.
11. The control device of a cooking apparatus according to claim 10, wherein the third adjustment submodule is specifically configured to:
when the actual operation power is smaller than the target operation power, adding a third correction value to the actual operation PWM to obtain a first operation PWM;
judging whether the first running PWM is larger than the upper limit PWM of the current PWM range;
if so, determining the upper limit PWM of the current PWM range as the current operation PWM, otherwise, determining the first operation PWM as the current operation PWM;
wherein the third correction value is a constant.
12. The control device of a cooking apparatus according to claim 10, wherein the third adjustment submodule is specifically configured to:
when the actual operation power is larger than the target operation power, subtracting a fourth correction value from the actual operation PWM to obtain a second operation PWM;
judging whether the second operation PWM is smaller than the lower limit PWM of the current PWM range;
if so, determining the lower limit PWM of the current PWM range as the current operation PWM, otherwise, determining the second operation PWM as the current PWM;
wherein the fourth correction value is a constant.
13. A control device of a cooking apparatus, comprising:
a processor;
memory for storing executable instructions of the processor, wherein the processor is configured to implement the steps of the method according to any one of claims 1 to 6 when executing the executable instructions stored in the memory.
14. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.
15. A cooking apparatus, characterized by comprising control means of a cooking apparatus according to any one of claims 7 to 13.
CN201810637569.7A 2018-06-20 2018-06-20 Control method and control device of cooking equipment, storage medium and cooking equipment Active CN110618622B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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