Electronic water valve control method, apparatus and device, and readable storage medium and program product

Abstract

An electronic water valve control method, apparatus and device, and a readable storage medium and a program product. The electronic water valve control method comprises: a vehicle intranet unit receiving a target water valve position sent by a vehicle one intelligent brain, determining a target electric motor voltage on the basis of the target water valve position, and sending the target electric motor voltage to a water valve actuator, such that the water valve actuator controls a water valve electric motor to drive, on the basis of the target electric motor voltage, a water valve core to rotate to the target water valve position; and the vehicle intranet unit sampling a feedback voltage of a carbon-film circuit of the water valve actuator, determining an actual water valve position on the basis of the feedback voltage, and sending the actual water valve position to the vehicle one intelligent brain, such that the vehicle one intelligent brain calculates control precision on the basis of the target water valve position and the actual water valve position, and determines whether the control precision meets a precision requirement.

Description

Electronic water valve control methods, devices, equipment, readable storage media, and program products Cross-references to related applications

[0001] This application claims priority to Chinese patent application No. 202024104918815, filed on April 23, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of vehicle technology, and in particular to an electronic water valve control method, apparatus, device, readable storage medium, and program product. Background Technology

[0003] Electronic water valves are an important component of the thermal management system of new energy vehicles. They play a role in adjusting various thermal management modes by changing the fluid channel and flow rate. When developing related thermal management applications, vehicle manufacturers have increasingly higher requirements for the rapid and precise control of electronic water valves.

[0004] Currently, the electronic water valves used by OEMs are supplied by electronic water valve manufacturers. These electronic water valves have PCB (Printed Circuit Board) control chips, which independently control the electronic water valves. OEMs control the electronic water valves by communicating with the vehicle controller and the PCB control chip. However, if OEMs want to adjust the relevant control parameters of the electronic water valves, they must go through the electronic water valve manufacturers. This cannot meet the OEMs' requirements for fast and accurate control of the electronic water valves, and is not conducive to the rapid development and iteration of thermal management applications. Summary of the Invention

[0005] This disclosure provides an electronic water valve control method, apparatus, device, readable storage medium, and program product. By utilizing one or more embodiments of this disclosure, it solves the technical problem that if vehicle manufacturers want to adjust the relevant control parameters of electronic water valves, they must go through the electronic water valve manufacturer, which makes it impossible to meet the vehicle manufacturers' requirements for rapid and accurate control of electronic water valves, thus hindering the rapid development and iteration of thermal management applications.

[0006] In a first aspect, this disclosure provides an electronic water valve control method for a vehicle area controller. The electronic water valve control method includes: the vehicle area controller receiving a target water valve position sent by a central controller, determining a target motor voltage based on the target water valve position, and sending the target motor voltage to a water valve actuator so that the water valve actuator controls the water valve motor to drive the water valve core to rotate to the target water valve position according to the target motor voltage; the vehicle area controller sampling the feedback voltage of the carbon film circuit of the water valve actuator, determining the actual water valve position based on the feedback voltage, and sending the actual water valve position to the vehicle central controller so that the vehicle central controller calculates the control accuracy based on the target water valve position and the actual water valve position and determines whether the control accuracy meets the accuracy requirements.

[0007] Secondly, embodiments of this disclosure provide an electronic water valve control device, the electronic water valve control device comprising:

[0008] The system includes a control module for receiving the target position of the water valve from the central controller. Based on this target position, the vehicle area controller determines the target voltage of the motor and sends it to the water valve actuator. The actuator then controls the water valve motor to rotate the valve core to the target position. The system also includes an accuracy judgment module for sampling the feedback voltage of the carbon film circuit of the water valve actuator. Based on this feedback voltage, the vehicle area controller determines the actual position of the water valve and sends it to the central controller. The central controller then calculates the control accuracy based on the target and actual positions of the water valve and determines whether the control accuracy meets the requirements.

[0009] Thirdly, this disclosure provides an electronic water valve control device, which includes a processor, a memory, and an electronic water valve control program stored in the memory and executable by the processor, wherein when the electronic water valve control program is executed by the processor, it implements the steps of the electronic water valve control method as described above.

[0010] Fourthly, embodiments of this disclosure provide a readable storage medium storing an electronic water valve control program, which, when executed by a processor, implements the steps of the electronic water valve control method as described above.

[0011] Fifthly, this disclosure provides a computer program product including computer instructions stored in a computer-readable storage medium and adapted to be read and executed by a processor to cause a computer device having the processor to perform the electronic water valve control method described above.

[0012] Sixthly, this disclosure provides an electronic water valve control method for a vehicle central controller. The electronic water valve control method includes: sending a target water valve position to a vehicle area controller, so that the vehicle area controller determines a target motor voltage based on the target water valve position; and sending the target motor voltage to a water valve actuator so that the water valve actuator controls the water valve motor to drive the water valve core to rotate to the target water valve position according to the target motor voltage; and receiving the actual water valve position, calculating the control accuracy based on the target water valve position and the actual water valve position, and determining whether the control accuracy meets the accuracy requirements. The actual water valve position is determined by the vehicle area controller based on a feedback voltage, which is the feedback voltage of the carbon film circuit of the water valve actuator sampled by the vehicle area controller. Attached Figure Description

[0013] Figure 1 shows a schematic flowchart of an electronic water valve control method according to some embodiments of the present disclosure;

[0014] Figure 2 shows a schematic diagram of the electronic water valve architecture used in the electronic water valve control method according to some embodiments of the present disclosure;

[0015] Figure 3 shows a schematic flowchart of an electronic water valve control method according to some other embodiments of the present disclosure;

[0016] Figure 4 shows a schematic diagram of the relationship between the water valve angle and the feedback voltage in an electronic water valve control method according to some embodiments of the present disclosure;

[0017] Figure 5 shows a schematic diagram of carbon film circuit signals for an electronic water valve control method according to some embodiments of the present disclosure;

[0018] Figure 6 shows a schematic flowchart of an electronic water valve control method according to some embodiments of the present disclosure;

[0019] Figure 7 shows a functional module schematic diagram of an electronic water valve control device according to some embodiments of the present disclosure; and

[0020] Figure 8 shows a schematic diagram of the hardware structure of an electronic water valve control device according to some embodiments of the present disclosure. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present disclosure, the technical solutions will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present disclosure without creative effort are within the scope of protection of the present disclosure.

[0022] To make the purpose, technical solution and advantages of this disclosure clearer, the contents of this disclosure will be further described in detail below with reference to the accompanying drawings.

[0023] In one aspect, this disclosure provides an electronic water valve control method.

[0024] In some embodiments, FIG1 shows a schematic flowchart of an electronic water valve control method according to some embodiments of the present disclosure. As shown in FIG1, the electronic water valve control method is used for a vehicle area controller and includes: step S10, in which the vehicle area controller can receive a water valve target position sent by the central controller, the vehicle area controller can determine a motor target voltage based on the water valve target position, and the vehicle area controller can send the motor target voltage to the water valve actuator so that the water valve actuator can control the water valve motor to drive the water valve core to rotate to the water valve target position according to the motor target voltage; and step S20, in which the vehicle area controller can sample the feedback voltage of the carbon film circuit of the water valve actuator, the vehicle area controller can determine the actual position of the water valve based on the feedback voltage, and the vehicle area controller can send the actual position of the water valve to the vehicle central controller so that the vehicle central controller can calculate the control accuracy based on the water valve target position and the actual position of the water valve and determine whether the control accuracy meets the accuracy requirements.

[0025] In some embodiments, the architectural characteristics of the central controller and regional controllers in the vehicle controller are first introduced. The OIB (One Intelligent Brain, Central Controller) is the brain of the vehicle, integrating control and management capabilities for vehicle control, power, intelligent driving, and intelligent cockpit functions, equivalent to the role of the CPU (Central Processing Unit) in the computer field. The OIB chip integrates multiple core ECUs (Electronic Control Units), reducing the latency of data transmission between multiple modules in the past, centralizing the vehicle's computing power, and significantly improving response and processing speed. The VIU (Vehicle Intranet Unit, Regional Controller) is the control node in the vehicle, usually multiple in number, located within a physical area of ​​the vehicle, providing power distribution, data connectivity, and I / O (Input / Output) acquisition and drive requirements for various sensors and actuators. In the regional controller architecture, each sensor and actuator connects to its local regional controller according to its location. The regional controller then performs data frame format conversions, summarizes the data, and transmits it to the central processor via high-speed Ethernet. Referring to Figure 2, which shows a schematic diagram of an electronic water valve architecture applied according to some embodiments of the present disclosure, under the architecture shown in Figure 2, the area controller can receive water valve control commands from the central controller, such as the target position of the water valve, for example, the water valve opening degree of 80%. Then, the area controller can determine the target voltage of the motor based on the target position of the water valve. For example, if the target voltage of the motor corresponding to the water valve opening degree of 80% is determined to be 9.6V, the area controller can send the 9.6V target voltage of the motor to the water valve actuator. Then, the water valve actuator adjusts the working voltage of the water valve motor to 9.6V so that the water valve motor with a working voltage of 9.6V can drive the water valve core to rotate to the target position of the water valve, that is, the water valve opening degree of 80%.

[0026] In one embodiment, when the area controller is powered on, it drives the water valve to the initial position by default, such as driving the water valve to the 10% opening position. During this process, it does not respond to the percentage control command request from the central controller. It only responds to the request from the central controller after initialization is completed.

[0027] In some embodiments, ideally the valve core rotates to the target position of the water valve, i.e., the water valve opening is 80%. However, due to possible water valve failures and control accuracy issues, there may be a deviation between the actual water valve opening and the target water valve opening. Therefore, the vehicle area controller can sample the feedback voltage of the carbon film circuit of the water valve actuator.

[0028] In some embodiments, the feedback voltage can be obtained by converting the current measured position of the water valve core through a carbon film circuit. The current measured position of the water valve core can be obtained by the water valve actuator through a position sensor. That is, the feedback voltage is converted to obtain the actual position of the water valve. The actual position of the water valve is sent to the vehicle central controller. The vehicle central controller can calculate the control accuracy based on the target position of the water valve and the actual position of the water valve, and determine whether the control accuracy meets the accuracy requirements. If the accuracy requirements are not met, it means that the actual position of the water valve has not reached the target position of the water valve. The vehicle central controller can issue a water valve target position control command again to drive the water valve motor to ensure the accuracy of water valve control.

[0029] In some embodiments, firstly, the control function of the electronic water valve can be moved to the vehicle controller, i.e., the central controller. The area controller receives the water valve control commands from the central controller, such as the target position of the water valve. The vehicle's area controller directly controls the electronic water valve through the water valve actuator, thus eliminating the need for control chips, MOSFETs, and software control functions on the existing electronic water valve's PCB board, retaining only the existing electronic water valve's execution function, thereby reducing the cost of the electronic water valve. Secondly, since the vehicle controller directly controls the electronic water valve, the control speed of the electronic water valve by the vehicle controller can be improved. Furthermore, the area controller converts the feedback voltage of the carbon film circuit of the water valve actuator into the actual position of the water valve for the central controller, allowing the central controller to calculate the control accuracy based on the actual and target positions of the water valve. If the accuracy requirement is not met, it means that the actual position of the water valve has not reached the target position, and the vehicle's central controller can issue another water valve target position control command to drive the water valve motor to ensure the accuracy of water valve control. Therefore, the vehicle controller can directly and quickly control the electronic water valve, better meeting the rapid iteration needs of OEMs' thermal management application development.

[0030] In some embodiments, referring to FIG3, FIG3 shows a schematic flowchart of an electronic water valve control method according to some embodiments of the present disclosure. As shown in FIG3, after step S20, the method includes: step S30, if the control accuracy exceeds the preset accuracy range, the vehicle central controller sends the water valve target position to the vehicle area controller again.

[0031] In some embodiments, referring to FIG4, FIG4 shows a schematic diagram of the correspondence between the water valve angle and the feedback voltage in an electronic water valve control method according to some embodiments of the present disclosure. As shown in FIG4, the water valve angle and the feedback voltage can be a one-to-one linear relationship, and the water valve angle is the target position of the water valve sent by the central controller. The feedback voltage can be obtained by converting the current measured position of the water valve core through a carbon film circuit. The current measured position of the water valve core can be obtained by the water valve actuator through a position sensor. That is, the feedback voltage is converted into the actual position of the water valve after conversion. In step S20, the central controller calculates the control accuracy based on the target position and the actual position of the water valve. The calculation of the control accuracy can be converted into the deviation calculation of the target voltage V1 and the feedback voltage V2. If |V1-V2|<0.05V (volts) is not satisfied, it can be determined that the control accuracy exceeds the preset accuracy range. Then the vehicle central controller sends the target position of the water valve to the vehicle area controller again.

[0032] In some embodiments, determining the actual position of the water valve based on the feedback voltage includes: correcting the feedback voltage according to the power supply voltage of the carbon film circuit of the water valve actuator, and determining the actual position of the water valve based on the corrected feedback voltage.

[0033] In some embodiments, the zone controller provides a 5V power supply to the carbon film circuit of the water valve actuator.

[0034] In some examples, to avoid inaccurate sampling of feedback voltage due to fluctuations in the supply voltage, the area controller can simultaneously sample the feedback voltage V2 of the carbon film circuit of the water valve actuator and the supply voltage V3. The sampled supply voltage is used to correct the feedback voltage to make it more accurate, thereby making the actual position of the water valve determined based on the feedback voltage more accurate. Since the supply voltage is 5V, the correction of the feedback voltage using the sampled supply voltage can be calculated using the following formula: Corrected feedback voltage V” = V2 / V3 * 5V (volts). Furthermore, the corrected feedback voltage can be used to determine the control accuracy. If |V1-V”| < 0.01V (volts) is not satisfied, it can be determined that the control accuracy exceeds the preset accuracy range, and the vehicle central controller will send the target position of the water valve to the vehicle area controller again.

[0035] In some embodiments, after step S10, if the area controller detects that the driving current of the water valve motor is less than the first preset current for a duration exceeding the first preset duration, then it stops driving the water valve motor and reports an open circuit fault to the central controller.

[0036] In some embodiments, after step S10, if the area controller detects that the drive current of the water valve motor is greater than the maximum preset current, it stops driving the water valve motor and reports a short circuit fault to the central controller.

[0037] In some embodiments, after step S10, the following steps are included: if the area controller detects that the duration for which the drive current of the water valve motor is greater than the second preset current exceeds the first preset duration, then the water valve motor is stopped from being driven and the water valve motor is driven again after the second preset duration; if the number of times the water valve motor is stopped from being driven and the water valve motor is driven again after the second preset duration exceeds a preset number, then the water valve motor is stopped from being driven and a stall fault is reported to the central controller.

[0038] In some embodiments, after step S10, if the area controller detects that the water valve motor has not reached the target position after a continuous driving time of more than a third preset time, and the driving current of the water valve motor is less than a third preset current, then the water valve motor is stopped from being driven, and a fault that it cannot reach the target position is reported to the central controller. The first preset current is less than the third preset current, the third preset current is less than the second preset current, the second preset current is less than the maximum preset current, the first preset time is less than the second preset time, and the second preset time is less than the third preset time.

[0039] In some embodiments, to ensure timely identification of the cause of an electronic water valve malfunction and facilitate maintenance, the area controller monitors the operating status of the electronic water valve. When a malfunction is detected, the corresponding fault code is reported to the central controller. Specifically, an open-circuit fault occurs when the area controller detects that the water valve motor's drive current is less than a first preset current (e.g., 20mA) for more than a first preset duration (e.g., 1 second), stops driving the water valve motor, and reports an open-circuit fault code Valve_OpenFault = 0x1:fault to the central controller. A short-circuit fault occurs when the water valve motor's drive current is greater than a maximum preset current (e.g., 3A / 150ms), stops driving the water valve motor, and reports a short-circuit fault code Valve_OverCurrentFault = 0x1:fault to the central controller. A stall fault occurs when the water valve motor's drive current is greater than a second preset current (e.g., 600mA) for more than a first preset duration (e.g., 1 second). Stop driving the water valve motor and then drive it again after a second preset time, such as 2 seconds. If the number of times the water valve motor is stopped and then driven again after the second preset time exceeds a preset number, such as 3 times, stop driving the water valve motor and report a stall fault code Valve_StallFault=0x1:fault to the central controller. The failure to reach the target position is caused by the continuous driving time of the water valve motor exceeding a third preset time, such as 22 seconds, and the water valve still not reaching the target position, and the driving current of the water valve motor is less than the third preset current of 500mA. Stop driving the water valve motor and report a failure to reach the target position fault code Valve_DriveOverTimeFault=0x1:fault to the central controller.

[0040] In some embodiments, the electronic water valve control method may further include: if the central controller receives an open circuit fault, short circuit fault, stall fault, or failure to rotate to the target position fault reported by the area controller, it sends a power-off command to the water valve motor to the area controller.

[0041] In some embodiments, when the central controller receives the aforementioned fault code reported by the regional controller, it sends a power-off command to the regional controller to control the water valve motor to be de-energized. During this vehicle power-on cycle, the water valve motor will not be powered on again. The central controller then feeds back the fault code reported by the regional controller and the current position of the water valve.

[0042] In some embodiments, the feedback voltage is obtained by the water valve actuator through a position sensor acquiring the current measured position of the water valve core, and then converting the current measured position via a carbon film circuit. This can be understood as the feedback voltage being obtained by converting the current measured position of the water valve core via a carbon film circuit, and the current measured position of the water valve core being obtained by the water valve actuator through a position sensor.

[0043] In this embodiment, referring to FIG5, FIG5 shows a schematic diagram of the carbon film circuit signal of the electronic water valve control method according to some embodiments of the present disclosure. As shown in FIG5, the area controller provides a 5V (volt) power supply voltage to the carbon film circuit of the water valve actuator. The water valve actuator includes a position sensor. When the water valve core rotates, the position sensor measures the current measurement position of the water valve core and converts the current measurement position into a feedback voltage through the carbon film circuit. The working principle is that the position sensor is provided with a carbon brush. When the water valve core rotates, it drives the carbon brush to move simultaneously on the carbon film circuit. As can be seen from FIG5, the carbon film circuit is not a closed circle, which may lead to the situation where the feedback voltage cannot be measured. At this time, the water valve core continues to rotate, so that the feedback voltage appears in the circle shown in FIG5 and the feedback voltage is measured.

[0044] Thirdly, this disclosure also provides an electronic water valve control method for a vehicle central controller. The electronic water valve control method includes: step S60, sending a water valve target position to a vehicle area controller so that the vehicle area controller determines a motor target voltage based on the water valve target position, and sending the motor target voltage to a water valve actuator so that the water valve actuator controls the water valve motor to drive the water valve core to rotate to the water valve target position according to the motor target voltage; and step S70, receiving the actual water valve position, calculating the control accuracy based on the water valve target position and the actual water valve position, and determining whether the control accuracy meets the accuracy requirements. The actual water valve position is determined by the vehicle area controller based on a feedback voltage, which is the feedback voltage of the carbon film circuit of the water valve actuator sampled by the vehicle area controller.

[0045] In some embodiments, after receiving the actual position of the water valve, calculating the control accuracy based on the target position of the water valve and the actual position of the water valve, and determining whether the control accuracy meets the accuracy requirements, the method further includes: if the control accuracy exceeds the preset accuracy range, the vehicle central controller sends the target position of the water valve to the vehicle area controller again.

[0046] In some embodiments, the actual position of the water valve is determined based on a corrected feedback voltage, which is corrected by the vehicle area controller based on the power supply voltage of the carbon film circuit of the water valve actuator.

[0047] In some embodiments, after the vehicle area controller sends the target voltage of the motor to the water valve actuator so that the water valve actuator controls the water valve motor to drive the water valve core to rotate to the target position of the water valve according to the target voltage of the motor, the method includes: if the area controller detects that the driving current of the water valve motor is less than the first preset current for a duration exceeding the first preset duration, the area controller stops driving the water valve motor; and receives an open circuit fault reported by the area controller.

[0048] In some embodiments, after the vehicle area controller sends a target motor voltage to the water valve actuator so that the water valve actuator controls the water valve motor to drive the water valve core to rotate to the target position according to the target motor voltage, the method includes: if the area controller detects that the drive current of the water valve motor is greater than a maximum preset current, stopping the drive of the water valve motor; and receiving a short-circuit fault reported by the area controller.

[0049] In some embodiments, after the vehicle area controller sends the target voltage of the motor to the water valve actuator so that the water valve actuator controls the water valve motor to drive the water valve core to rotate to the target position of the water valve according to the target voltage of the motor, the method includes: if the area controller detects that the driving current of the water valve motor is greater than the second preset current for a duration exceeding the first preset duration, the area controller stops driving the water valve motor and drives the water valve motor again after the second preset duration; if the number of times the area controller stops driving the water valve motor and drives the water valve motor again after the second preset duration exceeds a preset number, the area controller stops driving the water valve motor; and receives a stall fault reported by the area controller.

[0050] In some embodiments, after the vehicle area controller sends a target motor voltage to the water valve actuator so that the water valve actuator controls the water valve motor to drive the water valve core to rotate to the target position according to the target motor voltage, the process includes: if the area controller detects that the water valve motor's continuous driving time exceeds a third preset time and the water valve still has not reached the target position, and the water valve motor's driving current is less than a third preset current, then the area controller stops driving the water valve motor, wherein the first preset current is less than the third preset current, the third preset current is less than the second preset current, the second preset current is less than the maximum preset current, the first preset time is less than the second preset time, and the second preset time is less than the third preset time. The system also receives a fault report from the area controller indicating that the water valve has not reached the target position.

[0051] Thirdly, this disclosure also provides an electronic water valve control device.

[0052] In some embodiments, referring to FIG7, FIG7 illustrates a functional block diagram of an electronic water valve control device according to some embodiments of the present disclosure. As shown in FIG7, the electronic water valve control device includes: a transmission control module 10, used for the vehicle area controller to receive a water valve target position sent by the central controller, determine a motor target voltage based on the water valve target position, and send the motor target voltage to the water valve actuator so that the water valve actuator controls the water valve motor to drive the water valve core to rotate to the water valve target position according to the motor target voltage; and an accuracy judgment module 20, used for the vehicle area controller to sample the feedback voltage of the carbon film circuit of the water valve actuator, determine the actual position of the water valve based on the feedback voltage, and send the actual position of the water valve to the vehicle central controller so that the vehicle central controller can calculate the control accuracy based on the water valve target position and the actual position of the water valve and determine whether the control accuracy meets the accuracy requirements.

[0053] In some embodiments, the electronic water valve control device further includes a continuous control module, configured to: if the control accuracy exceeds a preset accuracy range, the vehicle central controller resends the water valve target position to the vehicle area controller.

[0054] In some embodiments, the accuracy judgment module 20 is used to: correct the feedback voltage based on the power supply voltage of the carbon film circuit of the water valve actuator, and determine the actual position of the water valve based on the corrected feedback voltage.

[0055] In some embodiments, the electronic water valve control device further includes a fault reporting module, configured to: if the area controller detects that the driving current of the water valve motor is less than the first preset current for a duration exceeding the first preset duration, then stop driving the water valve motor and report an open circuit fault to the central controller.

[0056] In some embodiments, the electronic water valve control device further includes a fault reporting module, used to: if the area controller detects that the drive current of the water valve motor is greater than the maximum preset current, stop driving the water valve motor and report a short circuit fault to the central controller.

[0057] In some embodiments, the electronic water valve control device further includes a fault reporting module, configured to: if the area controller detects that the driving current of the water valve motor is greater than the second preset current for a duration exceeding the first preset duration, then stop driving the water valve motor and drive the water valve motor again after the second preset duration; if the number of times the water valve motor is stopped and driven again after the second preset duration exceeds a preset number, then stop driving the water valve motor and report a stall fault to the central controller.

[0058] In some embodiments, the electronic water valve control device further includes a fault reporting module, configured to: if the area controller detects that the water valve motor has not reached the target position after a continuous driving time exceeding a third preset time, and the driving current of the water valve motor is less than a third preset current, then stop driving the water valve motor and report a fault that it cannot reach the target position to the central controller, wherein the first preset current is less than the third preset current, the third preset current is less than the second preset current, the second preset current is less than the maximum preset current, the first preset time is less than the second preset time, and the second preset time is less than the third preset time.

[0059] In some embodiments, the electronic water valve control device further includes a power-off control module, configured to: if the central controller receives an open circuit fault, short circuit fault, stall fault, or failure to reach the target position fault reported by the area controller, send a power-off command to the water valve motor to the area controller.

[0060] In some embodiments, the feedback voltage is obtained by the water valve actuator through a position sensor acquiring the current measured position of the water valve core and converting the current measured position via a carbon film circuit.

[0061] It is understood that the functions of each module in the above-mentioned electronic water valve control device correspond to the steps in the above-mentioned electronic water valve control method embodiment, and their functions and implementation processes will not be described in detail here.

[0062] Fourthly, this disclosure provides an electronic water valve control device.

[0063] Referring to Figure 8, Figure 8 shows a schematic diagram of the hardware structure of an electronic water valve control device according to some embodiments of the present disclosure. In this disclosure, the electronic water valve control device may include a processor, a memory, a communication interface, and a communication bus.

[0064] In some embodiments, the communication bus can be of any type and is used to interconnect the processor, memory, and communication interface.

[0065] Communication interfaces include I / O (Input / Output) interfaces, physical interfaces, and logical interfaces used for interconnecting components within the electronic water valve control device, as well as interfaces used for interconnecting the electronic water valve control device with other devices (such as other computing devices or user equipment). Physical interfaces can be Ethernet interfaces, fiber optic interfaces, ATM interfaces, etc.; user equipment can be displays, keyboards, etc.

[0066] Memory can be various types of storage media, such as RAM (Random Access Memory), ROM (Read-Only Memory), NVRAM (Non-Volatile RAM), flash memory, optical storage, hard disk, programmable ROM (PROM), EPROM (Erasable PROM), EEPROM (Electrically Erasable PROM), etc.

[0067] The processor can be a general-purpose processor, which can call the electronic water valve control program stored in the memory and execute the electronic water valve control method provided in this disclosure. For example, the general-purpose processor can be a CPU (Central Processing Unit). The method executed when the electronic water valve control program is called can be referred to the various embodiments of the electronic water valve control method in this disclosure, and will not be repeated here.

[0068] Those skilled in the art will understand that the hardware structure shown in FIG7 does not constitute a limitation of this disclosure and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0069] Fifthly, this disclosure also provides a readable storage medium.

[0070] This disclosure includes an electronic water valve control program stored on a readable storage medium, wherein when executed by a processor, the electronic water valve control program implements the steps of the electronic water valve control method described above.

[0071] In some embodiments, the method implemented when the electronic water valve control program is executed can be referred to various embodiments of the electronic water valve control method disclosed herein, and will not be repeated here.

[0072] In a sixth aspect, this disclosure provides a computer program product including computer instructions stored in a computer-readable storage medium and adapted to be read and executed by a processor to cause a computer device having the processor to perform the electronic water valve control method described above.

[0073] It should be noted that the above-mentioned serial numbers are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0074] The terms "comprising" and "having," and any variations thereof, in this disclosure, claims, and accompanying drawings are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such processes, methods, products, or apparatus. The terms "first," "second," and "third," etc., are used to distinguish different objects, etc., and do not indicate a sequential order, nor do they limit "first," "second," and "third" to different types.

[0075] In the description of embodiments in this disclosure, terms such as "exemplary," "for example," or "for instance" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplary," "for example," or "for instance" in this disclosure should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary," "for example," or "for instance" is intended to present the relevant concepts in a concrete manner.

[0076] In the description of the embodiments of this disclosure, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. The word "and / or" in the text is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of this disclosure, "multiple" means two or more.

[0077] In some processes described in the embodiments of this disclosure, multiple operations or steps are included in a specific order. However, it should be understood that these operations or steps may not be executed in the order they appear in the embodiments of this disclosure, or they may be executed in parallel. The sequence number of the operation is only used to distinguish different operations, and the sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed sequentially or in parallel, and these operations or steps may be combined.

[0078] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this disclosure, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device to execute the methods described in the various embodiments of this disclosure.

[0079] The above are merely preferred embodiments of this disclosure and do not limit the patent scope of this disclosure. Any equivalent structural or procedural transformations made using the content of this disclosure and its drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this disclosure.

Claims

1. An electronic water valve control method for a vehicle area controller, the method comprising: The vehicle area controller receives the target position of the water valve sent by the vehicle central controller, determines the target voltage of the motor based on the target position of the water valve, and sends the target voltage of the motor to the water valve actuator so that the water valve actuator can control the water valve motor to drive the water valve core to rotate to the target position of the water valve according to the target voltage of the motor. as well as The vehicle area controller samples the feedback voltage of the carbon film circuit of the water valve actuator, determines the actual position of the water valve based on the feedback voltage, and sends the actual position of the water valve to the vehicle central controller, so that the vehicle central controller can calculate the control accuracy based on the target position of the water valve and the actual position of the water valve and determine whether the control accuracy meets the accuracy requirements.

2. The electronic water valve control method as described in claim 1, wherein, After the vehicle area controller sends the actual position of the water valve to the vehicle central controller, so that the vehicle central controller can calculate the control accuracy based on the target position and the actual position of the water valve and determine whether the control accuracy meets the accuracy requirements, the following steps are also included: If the control accuracy exceeds the preset accuracy range, the vehicle central controller will send the target position of the water valve to the vehicle area controller again.

3. The electronic water valve control method as described in claim 1, wherein, The vehicle area controller determines the actual position of the water valve based on feedback voltage, including: The vehicle area controller corrects the feedback voltage based on the power supply voltage of the carbon film circuit of the water valve actuator, and determines the actual position of the water valve based on the corrected feedback voltage.

4. The electronic water valve control method as described in claim 1, wherein, After the vehicle area controller sends the target voltage of the motor to the water valve actuator, so that the water valve actuator controls the water valve motor to drive the water valve core to rotate to the target position of the water valve according to the target voltage of the motor, the process includes: If the area controller detects that the driving current of the water valve motor is less than the first preset current for a duration exceeding the first preset duration, it will stop driving the water valve motor and report an open circuit fault to the central controller.

5. The electronic water valve control method as described in claim 1, wherein, After the vehicle area controller sends the target voltage of the motor to the water valve actuator, so that the water valve actuator controls the water valve motor to drive the water valve core to rotate to the target position of the water valve according to the target voltage of the motor, the process includes: If the area controller detects that the drive current of the water valve motor is greater than the maximum preset current, it will stop driving the water valve motor and report a short circuit fault to the central controller.

6. The electronic water valve control method as described in claim 1, wherein, After the vehicle area controller sends the target voltage of the motor to the water valve actuator so that the water valve actuator controls the water valve motor to drive the water valve core to rotate to the target position of the water valve according to the target voltage of the motor, the following steps are taken: if the area controller detects that the driving current of the water valve motor is greater than the second preset current for a duration that exceeds the first preset duration, then the water valve motor is stopped from being driven and the water valve motor is driven again after the second preset duration; if the number of times the water valve motor is stopped from being driven and the water valve motor is driven again after the second preset duration exceeds a preset number, then the water valve motor is stopped from being driven and a stall fault is reported to the central controller.

7. The electronic water valve control method as described in claim 1, wherein, After the vehicle area controller sends the target voltage of the motor to the water valve actuator, so that the water valve actuator controls the water valve motor to drive the water valve core to rotate to the target position of the water valve according to the target voltage of the motor, the process includes: If the area controller detects that the water valve motor has not reached the target position after a continuous driving time exceeding the third preset time, and the driving current of the water valve motor is less than the third preset current, then it stops driving the water valve motor and reports a fault that it cannot reach the target position to the central controller. The first preset current is less than the third preset current, the third preset current is less than the second preset current, the second preset current is less than the maximum preset current, the first preset time is less than the second preset time, and the second preset time is less than the third preset time.

8. The electronic water valve control method according to any one of claims 4-7, further comprising: If the central controller receives an open circuit fault, short circuit fault, stall fault, or failure to reach the target position reported by the area controller, it sends a power-off command to the water valve motor to the area controller.

9. The electronic water valve control method as described in claim 1, wherein, The feedback voltage is obtained by converting the current measured position of the water valve core through a carbon film circuit. The current measured position of the water valve core is obtained by the water valve actuator through a position sensor.

10. An electronic water valve control device for a vehicle area controller, comprising: The transmission control module is used for the vehicle area controller to receive the target position of the water valve sent by the central controller, and to determine the target voltage of the motor based on the target position of the water valve. The target voltage of the motor is then sent to the water valve actuator so that the water valve actuator can control the water valve motor to drive the water valve core to rotate to the target position of the water valve according to the target voltage of the motor. as well as The accuracy judgment module is used by the vehicle area controller to sample the feedback voltage of the carbon film circuit of the water valve actuator, determine the actual position of the water valve based on the feedback voltage, and send the actual position of the water valve to the vehicle central controller so that the vehicle central controller can calculate the control accuracy based on the target position and the actual position of the water valve and determine whether the control accuracy meets the accuracy requirements.

11. An electronic water valve control method for a vehicle central controller, the method comprising: Send the target position of the water valve to the vehicle area controller so that the vehicle area controller can determine the target voltage of the motor based on the target position of the water valve, and send the target voltage of the motor to the water valve actuator so that the water valve actuator can control the water valve motor to drive the water valve core to rotate to the target position of the water valve according to the target voltage of the motor. as well as The system receives the actual position of the water valve, calculates the control accuracy based on the target position of the water valve and the actual position of the water valve, and determines whether the control accuracy meets the accuracy requirements. The actual position of the water valve is determined by the vehicle area controller based on the feedback voltage, which is the feedback voltage of the carbon film circuit of the water valve actuator sampled by the vehicle area controller.

12. The electronic water valve control method as described in claim 11, wherein, After calculating the control accuracy based on the target position and the actual position of the receiving water valve, and determining whether the control accuracy meets the accuracy requirements, the method further includes: If the control accuracy exceeds the preset accuracy range, the vehicle central controller will send the target position of the water valve to the vehicle area controller again.

13. The electronic water valve control method as described in claim 11, wherein, The actual position of the water valve is determined based on the corrected feedback voltage, which is corrected by the vehicle area controller based on the power supply voltage of the carbon film circuit of the water valve actuator.

14. The electronic water valve control method as described in claim 11, wherein, After the vehicle area controller sends the target voltage of the motor to the water valve actuator, so that the water valve actuator controls the water valve motor to drive the water valve core to rotate to the target position of the water valve according to the target voltage of the motor, the process includes: If the area controller detects that the driving current of the water valve motor is less than the first preset current for a duration exceeding the first preset duration, the area controller will stop driving the water valve motor. The receiver reported an open circuit fault.

15. The electronic water valve control method as described in claim 11, wherein, After the vehicle area controller sends the target voltage of the motor to the water valve actuator, so that the water valve actuator controls the water valve motor to drive the water valve core to rotate to the target position of the water valve according to the target voltage of the motor, the process includes: If the area controller detects that the drive current of the water valve motor is greater than the maximum preset current, it will stop driving the water valve motor. Receive a short-circuit fault reported by the area controller.

16. The electronic water valve control method as described in claim 11, wherein, After the vehicle area controller sends the target voltage of the motor to the water valve actuator, so that the water valve actuator controls the water valve motor to drive the water valve core to rotate to the target position of the water valve according to the target voltage of the motor, the process includes: If the area controller detects that the driving current of the water valve motor is greater than the second preset current for a duration that exceeds the first preset duration, then the area controller stops driving the water valve motor and drives the water valve motor again after the second preset duration. If the number of times the area controller stops driving the water valve motor and drives the water valve motor again after the second preset duration exceeds a preset number, then the area controller stops driving the water valve motor. Receive stall faults reported by the area controller.

17. The electronic water valve control method as described in claim 11, wherein, After the vehicle area controller sends the target voltage of the motor to the water valve actuator, so that the water valve actuator controls the water valve motor to drive the water valve core to rotate to the target position of the water valve according to the target voltage of the motor, the process includes: If the area controller detects that the water valve motor's continuous driving time exceeds a third preset time and the water valve still has not reached the target position, and the water valve motor's driving current is less than a third preset current, then the area controller stops driving the water valve motor. The first preset current is less than the third preset current, the third preset current is less than the second preset current, the second preset current is less than the maximum preset current, the first preset time is less than the second preset time, and the second preset time is less than the third preset time. Receives a fault report from the area controller indicating that the target location cannot be reached.

18. The electronic water valve control method according to any one of claims 14-17, wherein, Also includes: If the central controller receives an open circuit fault, short circuit fault, stall fault, or failure to reach the target position reported by the area controller, it sends a power-off command to the water valve motor to the area controller.

19. An electronic water valve control device, comprising a processor, a memory, and an electronic water valve control program stored in the memory and executable by the processor, wherein when the electronic water valve control program is executed by the processor, it implements the steps of the electronic water valve control method as claimed in any one of claims 1 to 9 or the electronic water valve control method as claimed in any one of claims 11 to 18.

20. A computer-readable storage medium including an electronic water valve control program stored thereon, wherein the electronic water valve control program, when executed by a processor, implements the steps of the electronic water valve control method as claimed in any one of claims 1 to 9 or the electronic water valve control method as claimed in any one of claims 11 to 18.

21. A computer program product comprising computer instructions stored in a computer-readable storage medium and adapted to be read and executed by a processor to cause a computer device having said processor to perform the detection method as claimed in any one of claims 1 to 9 or the electronic water valve control method as claimed in any one of claims 11 to 18.

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