CN112483710A - Electric water valve locked-rotor control method and controller - Google Patents
Electric water valve locked-rotor control method and controller Download PDFInfo
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- CN112483710A CN112483710A CN202011410599.8A CN202011410599A CN112483710A CN 112483710 A CN112483710 A CN 112483710A CN 202011410599 A CN202011410599 A CN 202011410599A CN 112483710 A CN112483710 A CN 112483710A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/042—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves with electric means, e.g. for controlling the motor or a clutch between the valve and the motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
Abstract
The application relates to the technical field of valves, in particular to an electric water valve locked-rotor control method and a controller, comprising the following steps: in the process that a valve core of the electric water valve rotates towards a preset stop end point, acquiring a Hall period of a motor for driving the valve core to rotate; and judging whether the Hall period of the motor is larger than a preset Hall period threshold value in real time, and if so, controlling the motor to rotate in the opposite direction after stopping running. The application aims to solve the problem that the service life of an electric water valve is reduced due to the existing electric water valve stalling control scheme, and provides an electric water valve stalling control method and a controller.
Description
Technical Field
The application relates to the technical field of valves, in particular to a locked-rotor control method and a controller for an electric water valve.
Background
The electric water valve is mainly applied to a cooling system of a new energy automobile and has the function of switching the flow direction of a medium or performing proportion adjustment in the cooling system. The electric water valve has the working principle that: the motor drives the gear train, and after the gear train slows down, final power transmission to the case drives the case rotation, has the flow channel hole on the case, through changing the relation between case flow channel hole and the last flow channel mouth of valve body, changes the flow direction or the proportion regulation of medium.
In the structure of the electric water valve, a mechanical stop gear is arranged on a valve body to control the rotation angle of a valve core in the valve body, when a water supply valve is powered on, the water valve is initialized, the water valve rotates forwards and backwards firstly, in the process, after the valve core touches the mechanical stop gear, the valve core can block and rotate, after the block and rotation, a Hall on a motor shaft cannot change, a PCB circuit board can judge that the valve core blocks and rotates, then a signal of reverse operation is given to the valve core, and the valve core rotates backwards to a zero position, namely the initialization of the electric water valve is completed.
However, in the existing locked-rotor control scheme, a short time still exists between the moment when the valve core touches the mechanical stop gear and the moment when the hall on the motor shaft is not changed, the inner motor shaft still can rotate to a certain extent in the short time, and the gear set applies acting force to the valve core, so that the acting force continuously generated between the valve core and the stop position in the short time is increased, and the acting force is in an increasing trend, and meanwhile, the internal pressure of a system formed by the valve core, the gear set and the motor is increased, so that the valve core, the gear set and the motor are easily damaged, and the service life of the water valve is greatly shortened.
Disclosure of Invention
The application aims to solve the problem that the service life of an electric water valve is reduced due to the existing electric water valve stalling control mode, and provides an electric water valve stalling control method and a controller.
In order to achieve the purpose, the following technical scheme is adopted in the application:
one aspect of the present application provides a method for controlling locked-rotor of an electric water valve, including:
in the process that a valve core of the electric water valve rotates towards a preset stop end point, acquiring a Hall period of a motor for driving the valve core to rotate;
and judging whether the Hall period of the motor is larger than a preset Hall period threshold value in real time, and if so, controlling the motor to rotate in the opposite direction after stopping running.
Optionally, the obtaining a hall period of a motor for driving a valve element to rotate in a process that the valve element of the electric water valve rotates to a preset stop end point includes:
receiving a power-on signal of the electric water valve;
determining that the electric water valve enters an initialization state according to the power-on signal of the electric water valve;
in the process that the valve core in the electric water valve in the initialization state rotates towards the stop end point, controlling a Hall signal acquisition assembly arranged on the electric water valve to periodically acquire a Hall signal of a motor for driving the valve core to rotate according to a preset acquisition time interval;
and generating the current Hall period of the motor according to the Hall signal of the motor.
Optionally, the hall signal collection assembly includes: a magnetic ring and a Hall sensor;
correspondingly, before obtaining the hall period of the motor for driving the valve core to rotate, the method further comprises the following steps:
a magnetic ring is arranged on the motor;
and a Hall sensor is arranged on a circuit board in the electric water valve, so that a signal acquisition end of the Hall sensor is opposite to the magnetic ring.
Optionally, before obtaining the hall period of the motor for driving the valve element to rotate, the method further includes:
continuously acquiring Hall signals of the motor in the electric water valve in a non-initialized running state;
and setting the Hall period threshold value according to Hall signals of a plurality of motors.
Another aspect of the present application provides a controller comprising:
the Hall period acquisition module is used for acquiring the Hall period of a motor for driving the valve core to rotate in the process that the valve core of the electric water valve rotates to a preset stop end point;
and the motor control module is used for judging whether the Hall period of the motor is greater than a preset Hall period threshold value in real time, and if so, controlling the motor to rotate in the opposite direction after stopping running.
Optionally, the hall period acquiring module includes:
the power-on signal receiving unit is used for receiving a power-on signal of the electric water valve;
the initialization determining unit is used for determining that the electric water valve enters an initialization state according to the power-on signal of the electric water valve;
the Hall signal acquisition unit is used for controlling a Hall signal acquisition assembly arranged on the electric water valve to periodically acquire a Hall signal of a motor for driving the valve core to rotate according to a preset acquisition time interval in the process that the valve core in the electric water valve in the initialized state rotates to the stop end point;
and the Hall period generating unit is used for generating the current Hall period of the motor according to the Hall signal of the motor.
Optionally, the hall signal collection assembly includes: a magnetic ring and a Hall sensor;
correspondingly, the controller further comprises:
the magnetic ring setting module is used for setting a magnetic ring on the motor;
and the Hall sensor setting module is used for setting a Hall sensor on a circuit board in the electric water valve so that a signal acquisition end of the Hall sensor is opposite to the magnetic ring.
Optionally, the method further comprises:
the normal operation Hall signal acquisition module is used for continuously acquiring Hall signals of the motor in the electric water valve in a non-initialized operation state;
and the Hall period threshold setting module is used for setting the Hall period threshold according to Hall signals of a plurality of motors.
A third aspect of the present application provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor executes the program to implement the steps of the electric water valve stalling control method provided in the present application.
A fourth aspect of the present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method for electric water valve stall control provided herein.
The technical scheme provided by the application can achieve the following beneficial effects:
the electric water valve stalling control method and the controller can judge whether the electric water valve stalls by judging whether the Hall period of the motor is lengthened or not, and then the motor is controlled to stop rotating and rotate in the reverse direction before the Hall period on the rotating shaft of the motor is not changed any more, so that the time of pressure contact between the valve element and the stop position is shortened, the pressure increase amplitude between the valve element and the stop position is reduced, the internal pressure action time of a system formed by the valve element, the gear set and the motor is shortened, the internal pressure increase amplitude of the system formed by the valve element, the gear set and the motor is reduced, and further the influence of the electric water valve stalling control method on the service life of the electric water valve is reduced.
The water valve and stop position non-contact locked-rotor control can be effectively realized, the impact force of the valve core impacting a mechanical stop position can be reduced, the abrasion degree of a transmission mechanism between the motor and the valve core can be effectively reduced, the occurrence possibility of the phenomenon of gear locking is reduced, and the service life of the electric water valve can be effectively prolonged.
Additional features of the present application and advantages thereof will be set forth in the description which follows, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It should be apparent that the drawings in the following description are embodiments of the present application and that other drawings may be derived from those drawings by a person of ordinary skill in the art without inventive step.
Fig. 1 is a schematic flow chart of a method for controlling locked rotation of an electric water valve according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart of step S100 in the electric water valve lock-rotor control method according to the embodiment of the present application;
fig. 3 is a schematic flowchart of a method for controlling a locked-rotor of an electric water valve including steps S001 and S002 according to an embodiment of the present disclosure;
fig. 4 is a schematic flowchart of a method for controlling a locked-rotor of an electric water valve including steps S003 and S004 according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of a first structure of a controller provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram of a hall period acquiring module 10 in a controller according to an embodiment of the present disclosure;
FIG. 7 is a schematic diagram of a second structure of a controller provided in the embodiment of the present application;
fig. 8 is a schematic structural diagram of a third controller provided in the embodiment of the present application.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The conventional electric water valve rotation blocking control mode is that when the electric water valve is electrified, the electric water valve is initialized, namely a valve core rotates from a position before electrification to a full-open position, after the valve core rotates to a mechanical stop position, the valve core is clamped and fixed, so that a gear train and a motor do not rotate, and the Hall number does not change. The service life of the electric water valve is reduced due to the existing locked-rotor control mode.
In order To solve the problems, the application considers that the Hall period of the water valve in normal operation is To, when the valve core collides with the end point of the stop gear, the rotating shaft of the motor still rotates for a short time, and the Hall period of the rotating shaft is obviously prolonged in the period of time, so that the Hall period of the valve core (which is also a motor) can be compared when the electric water valve operates, when the Hall period is larger than the Hall period To of normal operation, the controller or the processor and the like can automatically judge that the valve core of the electric water valve is collided with the stop gear, immediately control the motor To stop rotating and then control the motor To rotate in the opposite direction, therefore, the time and the pressure increase amplitude of pressure contact between the valve core and the stop position are shortened, and the internal pressure action time and the pressure increase amplitude of a system formed by the valve core, the gear set and the motor are shortened, so that the influence of the electric water valve rotation blocking control method on the service life of the electric water valve is reduced.
In order to effectively shorten the contact time between the valve element and the stop position after the valve element collides with the stop position in the process of blocking the rotation of the electric water valve, an embodiment of the present application provides a method for controlling the blocking of the electric water valve, which is shown in fig. 1, and specifically includes the following steps:
s100: and acquiring a Hall period of a motor for driving the valve core to rotate in the process that the valve core of the electric water valve rotates towards a preset stop end point.
It is understood that the stop end point may be a mechanical stop already existing in the electrically operated water valve, or may be a position point marked in advance.
S200: and judging whether the Hall period of the motor is larger than a preset Hall period threshold value in real time, and if so, executing S300.
S300: and controlling the motor to rotate in the reverse direction after stopping running.
In order to effectively improve the effectiveness and accuracy of obtaining the hall period and further shorten the contact time between the valve element and the stop position after the valve element collides with the stop position, in an embodiment of the electric water valve stalling control method provided by the present application, referring to fig. 2, step S100 in the electric water valve stalling control method specifically includes the following steps:
s101: and receiving a power-on signal of the electric water valve.
S102: and determining that the electric water valve enters an initialization state according to the power-on signal of the electric water valve.
S103: and in the process that the valve core in the electric water valve in the initialization state rotates towards the stop end point, controlling a Hall signal acquisition assembly arranged on the electric water valve to periodically acquire a Hall signal of a motor for driving the valve core to rotate according to a preset acquisition time interval.
S104: and generating the current Hall period of the motor according to the Hall signal of the motor.
In order to further improve the accuracy and the timeliness of the hall signal acquisition of the motor, so as to further shorten the contact time between the valve element and the stop position after the valve element collides with the stop position, in an embodiment of the electric water valve stalling control method provided by the application, the hall signal acquisition assembly comprises: referring to fig. 3, the magnetic ring and the hall sensor, before step S100 in the method for controlling locked rotation of an electric water valve, further include the following steps:
s001: and the motor is provided with a magnetic ring.
S002: a circuit board in the electric water valve is provided with a Hall sensor, so that a signal acquisition end of the Hall sensor is opposite to the magnetic ring.
In order to ensure the accuracy of setting the hall period threshold value, so as to shorten the contact time between the valve element and the stop position after the valve element collides with the stop position, in an embodiment of the electric water valve lock-rotor control method provided by the present application, referring to fig. 4, before step S100, the following is further specifically included in the electric water valve lock-rotor control method:
s003: continuously acquiring Hall signals of the motor in the electric water valve in a non-initialized running state.
It is understood that the electrically operated water valve in the non-initialized operation state is the electrically operated water valve in the normal operation state.
In a specific example, as known from the hall waveform in the normal case, the time of a half cycle of the hall signal in the normal case is 5.4ms, and it is assumed that the sampling frequency is set to be 200us for sampling, that is, 27 level sampling points can be adopted in each half cycle. According to the Hall waveform after the valve core and the stop end point are collided, the time of each half period of the Hall signal after the valve core and the stop end point are collided gradually rises, the time of the last waveform is 20ms, the sampling frequency is assumed to be set to be 200us for sampling once, namely, 100 level sampling points can be adopted in each half period, namely, the number of the level sampling points in each half period is monitored through software, when the number of the sampling points reaches a set threshold value (such as 60 sampling points), a judgment switch is considered to be triggered, and therefore the effect of stopping the motor in advance and reducing the stalling impact is achieved.
S004: and setting the Hall period threshold value according to Hall signals of a plurality of motors.
In one example, the controller judges the current motion state of the electric water valve through the jumping of the hall signals, the hall signals are always in a high level or a low level when the electric water valve stops, and the hall signals regularly and periodically jump when the electric water valve moves.
For example, if the period of the hall signal is 10ms, the half period is 5ms, and 25 high-level (low-level) sampling points can be obtained by 200us once AD sampling.
It should be understood that the execution sequence of step S003 and step S004 in fig. 4 is only an example, and in practical applications, step S003 and step S004 may also be executed after step S002 and between step S100, that is, the hall signal collecting assembly that has been set may be used to continuously collect the hall signal of the motor in the electric water valve in the non-initialized operation state, which is not limited in this application.
That is to say, the electric water valve comprises a motor, a gear train, a circuit board and a valve core, wherein a magnetic ring is arranged on the motor, a Hall sensor is arranged on the circuit board, and whether the water valve rotates in place is judged by monitoring the period of a Hall sensor when the water valve operates.
From the above description, it can be seen that the electric water valve stalling control method provided in the embodiment of the application can determine whether the electric water valve stalls by determining whether the hall period of the motor is lengthened, and then control the motor to stop rotating and rotate in the reverse direction before the hall period on the rotating shaft of the motor is not changed, so that the time of pressure contact between the valve element and the stop position and the pressure increase amplitude are shortened, the internal pressure action time and the pressure increase amplitude of a system formed by the valve element, the gear set and the motor are shortened, and the influence of the electric water valve stalling control method on the service life of the electric water valve is reduced.
In order to shorten the time of pressure contact between a valve core and a stop position in the process of electric water valve stalling, the embodiment of the application provides a controller for realizing all or part of contents in the electric water valve stalling control method, and the controller is directly connected with the motor to control the motor to start and stop; referring to fig. 5, the controller may be integrated in an original controller or processor corresponding to the electric water valve itself, or may be separately provided; the controller specifically comprises the following contents:
and the Hall period acquisition module 10 is used for acquiring the Hall period of a motor used for driving the valve core to rotate in the process that the valve core of the electric water valve rotates towards the preset stop end point.
And the motor control module 20 is configured to determine whether a hall period of the motor is greater than a preset hall period threshold in real time, and if so, control the motor to rotate in a reverse direction after stopping operation.
In order to effectively improve the effectiveness and accuracy of obtaining the hall period, so as to shorten the time of pressure contact between the valve element and the stop position, in an embodiment of the controller provided by the present application, referring to fig. 6, a hall period obtaining module 10 in the controller specifically includes the following contents:
and the power-on signal receiving unit 11 is used for receiving a power-on signal of the electric water valve.
And the initialization determining unit 12 is configured to determine that the electric water valve enters an initialization state according to the power-on signal of the electric water valve.
And the hall signal acquisition unit 13 is used for controlling a hall signal acquisition assembly arranged on the electric water valve to periodically acquire a hall signal of a motor for driving the valve core to rotate according to a preset acquisition time interval in the process that the valve core in the electric water valve in the initialization state rotates towards the stop end point.
And the Hall period generating unit 14 is used for generating the current Hall period of the motor according to the Hall signal of the motor.
In order to further improve the accuracy and the timeliness of the hall signal acquisition of the motor, so as to shorten the time of pressure contact between the valve core and the stop position, in an embodiment of the controller provided by the application, the hall signal acquisition assembly includes: magnetic ring and hall sensor, see fig. 7, the controller also includes the following specifically:
and the magnetic ring setting module 01 is used for setting a magnetic ring on the motor.
And the Hall sensor setting module 02 is used for setting a Hall sensor on a circuit board in the electric water valve so that a signal acquisition end of the Hall sensor is opposite to the magnetic ring.
In order to ensure the accuracy of the setting of the hall period threshold value, so as to further shorten the time of the pressure contact between the valve core and the stop position, in an embodiment of the controller provided by the present application, referring to fig. 8, the controller further specifically includes the following contents:
and the normal operation hall signal acquisition module 03 is used for continuously acquiring hall signals of the motor in the electric water valve in a non-initialized operation state.
And the Hall period threshold setting module 04 is used for setting the Hall period threshold according to Hall signals of a plurality of motors.
From the above description, the controller provided in the embodiment of the present application can shorten the time of pressure contact between the valve element and the stop position in the process of the electric water valve stalling, and can effectively reduce the degree of wear of the transmission mechanism between the motor and the valve element, thereby reducing the possibility of the occurrence of the gear seizure, and effectively reducing the influence of the electric water valve stalling control method on the service life of the electric water valve.
In terms of hardware, in order to shorten the time of pressure contact between the valve element and the stop position, the present application provides an embodiment of an electronic device for implementing all or part of the electric water valve stalling control method, where the electronic device specifically includes the following contents:
a processor, a memory, a communication interface, and a bus; the processor, the memory and the communication interface complete mutual communication through the bus; the communication interface is used for realizing information transmission between the electronic equipment and the user terminal and relevant equipment such as a relevant database and the like; the electronic device may be a desktop computer, a tablet computer, a mobile terminal, and the like, but the embodiment is not limited thereto. In this embodiment, the electronic device may refer to the embodiment of the electric water valve lock-rotation control method in the embodiment and the embodiment of the controller, which are incorporated herein by reference, and repeated descriptions thereof are omitted.
In one embodiment, the motorized water valve stall control function can be integrated into a central processor. Wherein the central processor may be configured to control:
s100: and acquiring a Hall period of a motor for driving the valve core to rotate in the process that the valve core of the electric water valve rotates towards a preset stop end point.
S200: and judging whether the Hall period of the motor is larger than a preset Hall period threshold value in real time, and if so, executing S300.
S300: and controlling the motor to rotate in the reverse direction after stopping running.
From the above description, the electronic device provided in the embodiment of the present application can shorten the time of pressure contact between the valve element and the stop position in the process of blocking the rotation of the electric water valve, and can effectively reduce the degree of wear of the transmission mechanism between the motor and the valve element, reduce the occurrence probability of the gear jamming phenomenon, and effectively improve the service life of the electric water valve.
An embodiment of the present application further provides a computer-readable storage medium capable of implementing all the steps in the electric water valve stalling control method in the foregoing embodiment, where the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the computer program implements all the steps of the electric water valve stalling control method in which an execution subject is a server or a client, for example, when the processor executes the computer program, the processor implements the following steps:
s100: and acquiring a Hall period of a motor for driving the valve core to rotate in the process that the valve core of the electric water valve rotates towards a preset stop end point.
S200: and judging whether the Hall period of the motor is larger than a preset Hall period threshold value in real time, and if so, executing S300.
S300: and controlling the motor to rotate in the reverse direction after stopping running.
As can be seen from the above description, the computer-readable storage medium provided in the embodiment of the present application can shorten the time of pressure contact between the valve element and the stop position in the process of blocking the electric water valve, effectively reduce the degree of wear of the transmission mechanism between the motor and the valve element, reduce the possibility of occurrence of gear lock, and effectively prolong the service life of the electric water valve.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. The electric water valve locked-rotor control method is characterized by comprising the following steps:
in the process that a valve core of the electric water valve rotates towards a preset stop end point, acquiring a Hall period of a motor for driving the valve core to rotate;
and judging whether the Hall period of the motor is larger than a preset Hall period threshold value in real time, and if so, controlling the motor to rotate in the opposite direction after stopping running.
2. The electric water valve lock-up control method of claim 1, wherein the obtaining of the hall period of the motor for driving the valve element to rotate in the process of rotating the valve element of the electric water valve to a preset stop end point comprises:
receiving a power-on signal of the electric water valve;
determining that the electric water valve enters an initialization state according to the power-on signal of the electric water valve;
in the process that the valve core in the electric water valve in the initialization state rotates towards the stop end point, controlling a Hall signal acquisition assembly arranged on the electric water valve to periodically acquire a Hall signal of a motor for driving the valve core to rotate according to a preset acquisition time interval;
and generating the current Hall period of the motor according to the Hall signal of the motor.
3. The electric water valve lock-rotor control method of claim 2, wherein the hall signal acquisition assembly comprises: a magnetic ring and a Hall sensor;
correspondingly, before obtaining the hall period of the motor for driving the valve core to rotate, the method further comprises the following steps:
a magnetic ring is arranged on the motor;
and a Hall sensor is arranged on a circuit board in the electric water valve, so that a signal acquisition end of the Hall sensor is opposite to the magnetic ring.
4. The electric water valve lock-up control method of claim 1, further comprising, before the obtaining the hall period of the motor for driving the valve element to rotate:
continuously acquiring Hall signals of the motor in the electric water valve in a non-initialized running state;
and setting the Hall period threshold value according to Hall signals of a plurality of motors.
5. A controller, comprising:
the Hall period acquisition module is used for acquiring the Hall period of a motor for driving the valve core to rotate in the process that the valve core of the electric water valve rotates to a preset stop end point;
and the motor control module is used for judging whether the Hall period of the motor is greater than a preset Hall period threshold value in real time, and if so, controlling the motor to rotate in the opposite direction after stopping running.
6. The controller of claim 5, wherein the Hall period acquisition module comprises:
the power-on signal receiving unit is used for receiving a power-on signal of the electric water valve;
the initialization determining unit is used for determining that the electric water valve enters an initialization state according to the power-on signal of the electric water valve;
the Hall signal acquisition unit is used for controlling a Hall signal acquisition assembly arranged on the electric water valve to periodically acquire a Hall signal of a motor for driving the valve core to rotate according to a preset acquisition time interval in the process that the valve core in the electric water valve in the initialized state rotates to the stop end point;
and the Hall period generating unit is used for generating the current Hall period of the motor according to the Hall signal of the motor.
7. The controller of claim 6, wherein the Hall signal acquisition assembly comprises: a magnetic ring and a Hall sensor;
correspondingly, the controller further comprises:
the magnetic ring setting module is used for setting a magnetic ring on the motor;
and the Hall sensor setting module is used for setting a Hall sensor on a circuit board in the electric water valve so that a signal acquisition end of the Hall sensor is opposite to the magnetic ring.
8. The controller of claim 5, further comprising:
the normal operation Hall signal acquisition module is used for continuously acquiring Hall signals of the motor in the electric water valve in a non-initialized operation state;
and the Hall period threshold setting module is used for setting the Hall period threshold according to Hall signals of a plurality of motors.
9. Electronic equipment comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method of controlling a locked-rotor of an electrically operated water valve as claimed in any one of claims 1 to 4 are implemented when the program is executed by the processor.
10. 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 electrically operated water valve stall control method according to any one of claims 1 to 4.
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| CN202011410599.8A CN112483710A (en) | 2020-12-04 | 2020-12-04 | Electric water valve locked-rotor control method and controller |
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| CN202011410599.8A CN112483710A (en) | 2020-12-04 | 2020-12-04 | Electric water valve locked-rotor control method and controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114063495A (en) * | 2021-10-29 | 2022-02-18 | 广东远通工业科技有限公司 | Intelligent valve controller |
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