Water pump duty ratio control method, device, equipment and medium

Abstract

The invention discloses a water pump duty ratio control method, device and equipment and a medium. Belongs to the technical field of new energy automobile electric water pump control. The method comprises the steps of obtaining cooling liquid flow data of a water outlet of a water pump; wherein the flow data comprises at least two different control duty ratios sent to a water pump controller, and obtained cooling liquid flow values corresponding to the control duty ratios; carrying out numerical comparison on the at least two cooling liquid flow values, and determining a numerical relationship between the flow values; and determining a target parameter value corresponding to the inverse scaling quantity of water pump control according to the numerical relationship, and generating a water pump control signal based on the target parameter value. The technical effect of improving the stability of water pump control is achieved.

Description

Technical Field

[0001] This invention relates to the technical field of electric water pump control for new energy vehicles, and particularly to a water pump duty cycle control method, device, equipment, and medium. Background Technology

[0002] With the rapid development of new energy vehicles, electric water pumps are widely used in these vehicles. Currently, the controller pins and the effectiveness of the pump control duty cycle are not consistent, which often leads to the control signal value being opposite to the actual pump speed during actual development.

[0003] The duty cycle of the water pump control is only numerically significant. It requires manual verification based on the electric water pump specifications to determine whether the duty cycle of the pump and controller pins is active high or active low, and then manually setting the calibration parameters for the control signal to achieve the correct calibration value. This method not only requires a significant investment of manpower for manual judgment and parameter setting, but manual operation is also prone to errors, resulting in the control signal value being opposite to the actual pump speed. Furthermore, different vehicle models with the same thermal management solution, or different water pumps within the same vehicle model, require manual parameter setting again, making it difficult to maintain software consistency. This significantly increases development costs and manpower investment, and reduces the development efficiency and fault tolerance of the water pump control system. Summary of the Invention

[0004] This invention provides a method, apparatus, equipment, and medium for controlling the duty cycle of a water pump, so as to achieve automatic judgment and adaptive control of the effectiveness of the water pump control duty cycle.

[0005] According to one aspect of the present invention, a method for controlling the duty cycle of a water pump is provided, the method comprising:

[0006] Acquire coolant flow data at the water pump outlet; wherein, the flow data includes sending at least two different control duty cycles to the water pump controller, and obtaining coolant flow values ​​corresponding to each control duty cycle;

[0007] Compare at least two of the coolant flow rate values ​​to determine the numerical relationship between the flow rate values.

[0008] The target parameter value corresponding to the reverse calibration quantity of the water pump control is determined based on the numerical relationship, and the water pump control signal is generated based on the target parameter value.

[0009] According to another aspect of the present invention, a water pump duty cycle control device is provided, the device comprising:

[0010] A flow acquisition module is used to acquire coolant flow data at the water pump outlet; wherein, the flow data includes sending at least two different control duty cycles to the water pump controller, and obtaining coolant flow values ​​corresponding to each control duty cycle;

[0011] The numerical relationship determination module is used to compare at least two coolant flow rate values ​​to determine the numerical relationship between the flow rate values.

[0012] The control signal generation module is used to determine the target parameter value corresponding to the reverse calibration quantity of the water pump control according to the numerical relationship, and generate a water pump control signal based on the target parameter value.

[0013] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0014] At least one processor;

[0015] and memory that is communicatively connected to at least one processor;

[0016] The memory stores a computer program that can be executed by at least one processor, which is then executed by the at least one processor to enable the at least one processor to execute the pump duty cycle control method of any embodiment of the present invention.

[0017] According to another aspect of the present invention, a computer-readable storage medium is provided, which stores computer instructions for causing a processor to execute and implement the water pump duty cycle control method of any embodiment of the present invention.

[0018] The technical solution of this invention acquires coolant flow data at the outlet of a water pump. This flow data includes sending at least two different control duty cycles to the water pump controller, obtaining coolant flow values ​​corresponding to each control duty cycle. The at least two coolant flow values ​​are compared to determine the numerical relationship between them. Based on this relationship, a target parameter value corresponding to the inverse calibration quantity of the water pump control is determined. A water pump control signal is generated based on the target parameter value. This solution solves the technical problems of existing technologies, such as the need for manual judgment of duty cycle validity, susceptibility to errors, difficulty in software standardization, and high development costs. It achieves the technical effects of reducing manpower input, lowering development costs, improving the fault tolerance and stability of water pump control, and realizing unified adaptation of software logic.

[0019] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A flowchart of a water pump duty cycle control method provided in an embodiment of the present invention;

[0022] Figure 2a A flowchart of another water pump duty cycle control method provided in an embodiment of the present invention;

[0023] Figure 2b A flowchart illustrating an alternative example of a water pump duty cycle control method provided in an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of a water pump duty cycle control device provided in an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the structure of an electronic device for implementing a water pump duty cycle control method according to an embodiment of the present invention. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0028] Figure 1This is a flowchart illustrating a water pump duty cycle control method provided in an embodiment of the present invention. This embodiment is applicable to water pump duty cycle control situations. The method can be executed by a water pump duty cycle control device, which can be implemented in hardware and / or software and can be configured in an electronic device. Figure 1 As shown, the method specifically includes the following steps:

[0029] S110. Obtain the coolant flow rate data at the water pump outlet.

[0030] The flow data includes the coolant flow rate value corresponding to each control duty cycle obtained by sending at least two different control duty cycles to the water pump controller; the coolant flow rate data at the water pump outlet can be understood as the relevant value of the coolant flow rate at the water pump outlet; the control duty cycle can be understood as the proportion of the effective level in the control signal sent by the controller to the water pump; the water pump controller can be understood as a control device used to send control duty cycle signals to the water pump to realize water pump speed control; the coolant flow rate value can be understood as the specific value of the coolant flow rate at the water pump outlet collected by the flow sensor under a certain control duty cycle.

[0031] Specifically, the application software sends at least two different control duty cycle signals to the water pump controller. After receiving the signals, the water pump operates accordingly. At the same time, the flow sensor placed at the water pump outlet collects and records the specific value of the coolant flow rate under each control duty cycle. These values ​​are then integrated to form the coolant flow rate data to be processed.

[0032] In some embodiments, acquiring the coolant flow rate data at the water pump outlet includes:

[0033] A first control duty cycle is sent to the water pump controller, and the corresponding first coolant flow rate value is collected and recorded by the flow sensor; a second control duty cycle is sent to the water pump controller, and the corresponding second coolant flow rate value is collected and recorded by the flow sensor; the first coolant flow rate value and the second coolant flow rate value are used as the coolant flow rate data.

[0034] Here, the first control duty cycle can be understood as the first control duty cycle with a different value sent to the water pump controller; the first coolant flow rate value can be understood as the coolant flow rate value collected and recorded by the flow sensor under the first control duty cycle; the second control duty cycle can be understood as the second control duty cycle with a different value sent to the water pump controller; the second coolant flow rate value can be understood as the coolant flow rate value collected and recorded by the flow sensor under the second control duty cycle; and the flow sensor can be understood as a detection device arranged at the water pump outlet for collecting coolant flow rate data.

[0035] Specifically, the flow data is obtained through two different control duty cycles. First, the first control duty cycle is sent to the water pump controller to synchronously collect and record the corresponding first coolant flow value. Then, the second control duty cycle is sent to collect and record the corresponding second coolant flow value. Finally, these two flow values ​​are used as the core coolant flow data.

[0036] In some embodiments, the first control duty cycle and the second control duty cycle are control duty cycles of different magnitudes, and the value of the first control duty cycle is smaller than the value of the second control duty cycle.

[0037] In this embodiment of the invention, by using two distinct duty cycles of different sizes, the subsequent comparison results of flow rates are more distinctive and the effectiveness of the duty cycle can be judged more accurately.

[0038] S120. Compare the flow rates of at least two types of coolant to determine the numerical relationship between the flow rates.

[0039] Among them, numerical comparison can be understood as the operation of comparing the coolant flow rate values ​​corresponding to different control duty cycles; numerical relationship can be understood as the correlation result between different coolant flow rate values ​​obtained by comparing their magnitudes.

[0040] Specifically, at least two coolant flow rates are compared pairwise to determine the relationship between the flow rates. This relationship serves as the basis for judging the effectiveness of the pump control duty cycle.

[0041] In some embodiments, the step of comparing at least two coolant flow rates to determine the numerical relationship between the flow rates includes: comparing at least two coolant flow rates; if the first coolant flow rate is greater than the second coolant flow rate, then determining the numerical relationship between the flow rates as a first numerical relationship; if the first coolant flow rate is less than the second coolant flow rate, then determining the numerical relationship between the flow rates as a second numerical relationship.

[0042] The first numerical relationship can be understood as the correlation result of the first coolant flow rate value being greater than the second coolant flow rate value; the second numerical relationship can be understood as the correlation result of the first coolant flow rate value being less than the second coolant flow rate value.

[0043] Specifically, the collected first and second coolant flow rates are compared. If the first coolant flow rate is greater than the second, the numerical relationship between the flow rates is determined as the first numerical relationship. If the first coolant flow rate is less than the second, the numerical relationship between the flow rates is determined as the second numerical relationship. If a boundary scenario occurs where the first coolant flow rate is equal to the second coolant flow rate, it is determined as an abnormal situation of duty cycle control failure, which does not belong to the first or second numerical relationship. The anomaly investigation mechanism needs to be triggered, and this comparison step is repeated after the fault is resolved.

[0044] S130. Determine the target parameter value corresponding to the reverse calibration quantity of the water pump control according to the numerical relationship, and generate a water pump control signal based on the target parameter value.

[0045] Among them, the inversion calibration quantity can be understood as the calibration parameter used to control whether the water pump control duty cycle performs inversion processing; the target parameter value can be understood as the specific parameter value matched to the inversion calibration quantity according to the numerical relationship; the water pump control signal can be understood as the final duty cycle control signal sent to the water pump by the controller after processing the target parameter value of the inversion calibration quantity.

[0046] Specifically, based on the obtained flow rate values, the corresponding target parameter value is used to obtain the counter-standard quantitative matching value. Then, based on the target parameter value, the control duty cycle to be sent is processed accordingly to generate a control signal that is adapted to the effectiveness of the pump duty cycle, ensuring that the actual pump speed is positively correlated with the control duty cycle.

[0047] In some embodiments, determining the target parameter value corresponding to the amount of reverse calibration controlled by the water pump based on the numerical relationship includes: if the numerical relationship is the first numerical relationship, setting the target parameter value of the amount of reverse calibration as a first parameter; if the numerical relationship is the second numerical relationship, setting the target parameter value of the amount of reverse calibration as a second parameter.

[0048] The first parameter can be understood as the target parameter value for quantitative matching of the back standard when the numerical relationship is the first numerical relationship; the second parameter can be understood as the target parameter value for quantitative matching of the back standard when the numerical relationship is the second numerical relationship.

[0049] Specifically, based on the obtained first and second numerical relationships, targeted parameter settings are made. If the numerical relationship is the first numerical relationship, the target parameter value for taking the reverse calibration quantitative quantity is set as the first parameter. If the numerical relationship is the second numerical relationship, the target parameter value for taking the reverse calibration quantitative quantity is set as the second parameter, so as to achieve a precise correspondence between the parameter settings and the numerical relationship.

[0050] In some embodiments, the first parameter is 1 and the second parameter is 0.

[0051] In this embodiment of the invention, by explicitly setting the value of the first parameter to 1 and the value of the second parameter to 0, the abstract parameter name is transformed into a specific executable value, allowing the controller to directly perform subsequent duty cycle processing operations based on the value.

[0052] The technical solution of this invention acquires coolant flow data at the outlet of a water pump. This flow data includes sending at least two different control duty cycles to the water pump controller, obtaining coolant flow values ​​corresponding to each control duty cycle. The at least two coolant flow values ​​are compared to determine the numerical relationship between them. Based on this relationship, a target parameter value corresponding to the inverse calibration quantity of the water pump control is determined. A water pump control signal is generated based on the target parameter value. This solution solves the technical problems of existing technologies, such as the need for manual judgment of duty cycle validity, susceptibility to errors, difficulty in software standardization, and high development costs. It achieves the technical effects of reducing manpower input, lowering development costs, improving the fault tolerance and stability of water pump control, and realizing unified adaptation of software logic.

[0053] Figure 2a This is a flowchart of another water pump duty cycle control method provided by an embodiment of the present invention. Based on the above embodiments, this embodiment is a further refinement of the above embodiments, and its specific implementation can be found in the technical solution of this embodiment. Technical terms that are the same as or corresponding to those in the above embodiments will not be repeated here. Figure 2a As shown, the method specifically includes the following steps:

[0054] S210. Obtain coolant flow rate data at the water pump outlet; wherein, the flow rate data includes sending at least two different control duty cycles to the water pump controller, and obtaining coolant flow rate values ​​corresponding to each control duty cycle.

[0055] S220. Compare the flow rates of at least two types of coolant to determine the numerical relationship between the flow rates.

[0056] S230. Determine the target parameter value corresponding to the inverted calibration quantity of the water pump control according to the numerical relationship. If the target parameter value is the first parameter, perform inversion processing on the control duty cycle sent to the water pump controller to generate the water pump control signal.

[0057] The inversion process can be understood as the operation of reversing the control duty cycle value that the controller was originally going to send to obtain a new duty cycle value.

[0058] Specifically, when the target parameter value of the inverted calibration is the first parameter (value 1), the controller first obtains the basic control duty cycle value that was originally to be sent to the water pump, such as a basic duty cycle of 30%, and then performs an inversion calculation on this value, such as subtracting the basic duty cycle from 100%, i.e., 100%-30%=70%, to obtain the inverted duty cycle value; using this inverted value as the core, a water pump control signal containing information such as duty cycle and transmission frequency is generated, and finally the signal is sent to the water pump controller, which drives the water pump to run according to the inverted duty cycle.

[0059] For example, assuming the basic control duty cycle is 40%, after inversion, the actual sent duty cycle is 60%; if the basic duty cycle is 70%, it will be 30% after inversion. The controller will encapsulate this inverted value into a control signal that conforms to the water pump communication protocol and send it to the water pump, ensuring that the effectiveness of the duty cycle is positively correlated with the water pump speed.

[0060] S240. If the target parameter value is the second parameter, the control duty cycle sent to the water pump controller is not inverted, and the water pump control signal is directly generated.

[0061] Specifically, when the target parameter value for the inverse calibration is the second parameter (value 0), the controller directly obtains the basic control duty cycle value that was originally to be sent to the water pump, for example, the basic duty cycle is 50%, without performing any inverse calculation; then, based on this original duty cycle value, it encapsulates it into a water pump control signal containing the duty cycle value, signal frequency, verification information, etc., according to the water pump controller's communication protocol; finally, the unmodified control signal is directly sent to the water pump controller, which drives the water pump to run according to the original duty cycle value.

[0062] In this embodiment of the invention, under the premise that the duty cycle and the pump speed are positively correlated, the control logic is kept simple to ensure that the pump operates accurately according to the preset basic duty cycle and matches the actual demand for coolant flow.

[0063] For example, assuming the basic control duty cycle is 60%, since the target parameter value is the second parameter, the controller will not perform any calculations on 60%. It will directly encapsulate the 60% duty cycle value into a control signal that conforms to the water pump communication specification and send it to the water pump controller. The water pump will eventually run at the speed corresponding to the 60% duty cycle, and the flow rate requirement can be met without adjusting the duty cycle value.

[0064] The technical solution of the embodiment of the present invention realizes the precise adaptation of the water pump control signal and the duty cycle effectiveness by distinguishing between performing duty cycle inversion processing or directly generating a control signal according to the target parameter value of the inversion calibration quantity, solves the technical problem in the prior art that the control signal generation logic is single, cannot adapt to different duty cycle effectiveness scenarios, and is likely to cause the water pump speed to not match the expectation, and achieves the technical effects of ensuring that the water pump always operates according to the effective duty cycle, improving the control accuracy of the coolant flow rate, and reducing the risk of abnormal operation of the water pump.

[0065] Figure 2b It is a flowchart of an optional example of another water pump duty cycle control method provided by the embodiment of the present invention. As Figure 2b shown, the method specifically includes the following steps:

[0066] When the vehicle is powered on for the first time, start the water pump duty cycle effectiveness judgment process.

[0067] Send a control signal with a 30% duty cycle to the water pump controller, and record the coolant flow rate value A at the water pump outlet at this time.

[0068] Then send a control signal with a 70% duty cycle to the water pump controller, and record the coolant flow rate value B at the water pump outlet at this time.

[0069] Compare the magnitudes of the flow rate values A and B:

[0070] If A > B, set the inversion calibration quantity to 1, and subsequently perform inversion processing on the control duty cycle;

[0071] If A < B, set the inversion calibration quantity to 0, and subsequently do not perform inversion processing on the control duty cycle;

[0072] If A = B, it is determined that the water pump or the flow sensor is abnormal, and enter the fault troubleshooting link.

[0073] In this embodiment, considering the water pump itself, different control duty cycles are positively correlated with the water pump speed, that is, positively correlated with the coolant flow rate. Therefore, a flow sensor is arranged at the water pump outlet, and the effectiveness of the water pump control duty cycle is judged by the coolant flow rate at the water pump outlet; for example, when the application software sends 30%, record the flow rate value A monitored by the flow sensor, when the application software sends 70%, record the flow rate value B monitored by the flow sensor, judge whether A is greater than B. If A > B, set the parameter of the inversion calibration quantity to 1 for inverted output. Conversely, if A < B, set the parameter of the inversion calibration quantity to 0 and do not perform inversion processing.

[0074] The technical solution of this invention, by sending control duty cycles of 30% and 70% sequentially when the vehicle is first powered on, records and compares the corresponding coolant flow values ​​A and B, and automatically sets the inverse calibration quantity based on the relationship between A and B, realizes automatic judgment and adaptive control of the water pump duty cycle effectiveness. This solves the technical problems of existing technologies that require manual judgment of duty cycle effectiveness, are prone to errors, and have difficulty in software standardization and high development costs. It achieves the technical effects of reducing manpower input, lowering development costs, improving the fault tolerance and stability of water pump control, and realizing unified and adapted software logic.

[0075] Figure 3 This is a schematic diagram of a water pump duty cycle control device provided in an embodiment of the present invention. Figure 3 As shown, the device includes: a flow acquisition module 310, a numerical relationship determination module 320, and a control signal generation module 330.

[0076] The flow acquisition module 310 is used to acquire coolant flow data at the water pump outlet; wherein the flow data includes coolant flow values ​​corresponding to each control duty cycle obtained by sending at least two different control duty cycles to the water pump controller; the numerical relationship determination module 320 is used to compare the at least two coolant flow values ​​to determine the numerical relationship between the flow values; and the control signal generation module 330 is used to determine the target parameter value corresponding to the inverse calibration quantity of the water pump control based on the numerical relationship, and generate a water pump control signal based on the target parameter value.

[0077] The technical solution of this invention acquires coolant flow data at the outlet of a water pump. This flow data includes sending at least two different control duty cycles to the water pump controller, obtaining coolant flow values ​​corresponding to each control duty cycle. The at least two coolant flow values ​​are compared to determine the numerical relationship between them. Based on this relationship, a target parameter value corresponding to the inverse calibration quantity of the water pump control is determined. A water pump control signal is generated based on the target parameter value. This solution solves the technical problems of existing technologies, such as the need for manual judgment of duty cycle validity, susceptibility to errors, difficulty in software standardization, and high development costs. It achieves the technical effects of reducing manpower input, lowering development costs, improving the fault tolerance and stability of water pump control, and realizing unified adaptation of software logic.

[0078] In some embodiments, the traffic acquisition module includes:

[0079] The first acquisition unit is used to send a first control duty cycle to the water pump controller and acquire and record the corresponding first coolant flow rate value through the flow sensor.

[0080] The second acquisition unit is used to send the second control duty cycle to the water pump controller and acquire and record the corresponding second coolant flow value through the flow sensor.

[0081] A flow rate data determination unit is used to use the first coolant flow rate value and the second coolant flow rate value as the coolant flow rate data.

[0082] In some embodiments, the first control duty cycle and the second control duty cycle are control duty cycles of different magnitudes, and the value of the first control duty cycle is smaller than the value of the second control duty cycle.

[0083] In some embodiments, the numerical relationship determination module includes:

[0084] The first relationship determination unit is used to compare the values ​​of at least two coolant flow rates. If the first coolant flow rate is greater than the second coolant flow rate, the numerical relationship between the flow rates is determined to be the first numerical relationship.

[0085] The second relationship determination unit is used to determine the numerical relationship between the flow rates as a second numerical relationship if the first coolant flow rate value is less than the second coolant flow rate value.

[0086] In some embodiments, the control signal generation module includes:

[0087] The first parameter determination unit is used to set the target parameter value of the reverse calibration quantity as the first parameter if the numerical relationship is the first numerical relationship.

[0088] The second parameter determination unit is used to set the target parameter value of the reverse calibration quantity as the second parameter if the numerical relationship is the second numerical relationship.

[0089] In some embodiments, the first parameter is 1 and the second parameter is 0.

[0090] In some embodiments, the control signal generation module includes:

[0091] The first signal generation unit is used to generate the water pump control signal by performing an inversion process on the control duty cycle sent to the water pump controller if the target parameter value is the first parameter.

[0092] The second signal generation unit is used to generate the water pump control signal directly without performing inversion processing on the control duty cycle sent to the water pump controller if the target parameter value is the second parameter.

[0093] The pump duty cycle control device provided in the embodiments of the present invention can execute the pump duty cycle control method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the method.

[0094] Figure 4 This is a schematic diagram of an electronic device for implementing the pump duty cycle control method of this invention. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0095] like Figure 4 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded into the RAM 13 from storage unit 18. The RAM 13 can also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0096] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0097] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as the method of water pump duty cycle control.

[0098] In some embodiments, the method pump duty cycle control may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the method pump duty cycle control described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform method pump duty cycle control by any other suitable means (e.g., by means of firmware).

[0099] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0100] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0101] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0102] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0103] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or middleware components (e.g., application servers), or frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0104] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0105] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0106] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for controlling the duty cycle of a water pump, characterized in that, include: Acquire coolant flow data at the water pump outlet; wherein, the flow data includes sending at least two different control duty cycles to the water pump controller, and obtaining coolant flow values ​​corresponding to each control duty cycle; Compare at least two of the coolant flow rate values ​​to determine the numerical relationship between the flow rate values. The target parameter value corresponding to the reverse calibration quantity of the water pump control is determined based on the numerical relationship, and the water pump control signal is generated based on the target parameter value.

2. The method according to claim 1, characterized in that, The acquisition of coolant flow rate data at the water pump outlet includes: Send a first control duty cycle to the water pump controller, and collect and record the corresponding first coolant flow rate value through the flow sensor; Send the second control duty cycle to the water pump controller, and collect and record the corresponding second coolant flow rate value through the flow sensor; The first coolant flow rate value and the second coolant flow rate value are used as the coolant flow rate data.

3. The method according to claim 2, characterized in that, The first control duty cycle and the second control duty cycle are different values, and the value of the first control duty cycle is smaller than the value of the second control duty cycle.

4. The method according to claim 2, characterized in that, The step of comparing at least two coolant flow rate values ​​to determine the numerical relationship between the flow rate values ​​includes: The flow rates of at least two coolant values ​​are compared. If the first coolant flow rate is greater than the second coolant flow rate, the numerical relationship between the flow rates is determined to be the first numerical relationship. If the first coolant flow rate is less than the second coolant flow rate, then the numerical relationship between the flow rate values ​​is determined as the second numerical relationship.

5. The method according to claim 4, characterized in that, The step of determining the target parameter value corresponding to the reverse calibration quantity of the water pump control based on the numerical relationship includes: If the numerical relationship is the first numerical relationship, the target parameter value for taking the reverse calibration quantity is set as the first parameter; If the numerical relationship is the second numerical relationship, the target parameter value for taking the reverse calibration quantity is set as the second parameter.

6. The method according to claim 5, characterized in that, The first parameter has a value of 1, and the second parameter has a value of 0.

7. The method according to claim 5, characterized in that, The generation of the water pump control signal based on the target parameter value includes: If the target parameter value is the first parameter, the control duty cycle sent to the water pump controller is inverted to generate the water pump control signal. If the target parameter value is the second parameter, the control duty cycle sent to the water pump controller is not inverted, and the water pump control signal is directly generated.

8. A water pump duty cycle control device, characterized in that, include: A flow acquisition module is used to acquire coolant flow data at the water pump outlet; wherein, the flow data includes sending at least two different control duty cycles to the water pump controller, and obtaining coolant flow values ​​corresponding to each control duty cycle; The numerical relationship determination module is used to compare at least two coolant flow rate values ​​to determine the numerical relationship between the flow rate values. The control signal generation module is used to determine the target parameter value corresponding to the reverse calibration quantity of the water pump control according to the numerical relationship, and generate a water pump control signal based on the target parameter value.

9. An electronic device, characterized in that, The electronic device includes: At least one processor; and a memory communicatively connected to the at least one processor; The memory stores a computer program that can be executed by the at least one processor, which is then executed by the at least one processor to enable the at least one processor to perform the pump duty cycle control method according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute the water pump duty cycle control method according to any one of claims 1-7.

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