CN114791189B

CN114791189B - Control method, device, equipment, system and storage medium of cooling system

Info

Publication number: CN114791189B
Application number: CN202210539611.8A
Authority: CN
Inventors: 黄文真; 王祝祥
Original assignee: Shenzhen Envicool Technology Co Ltd
Current assignee: Shenzhen Envicool Technology Co Ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2024-03-12
Anticipated expiration: 2042-05-17
Also published as: CN114791189A

Abstract

The embodiment of the invention discloses a control method, a device and a system of a cooling system and a computer readable storage medium, wherein the control method of the cooling system comprises the following steps: determining whether one of a water inlet pressure sensor of the cooling system and a water outlet pressure sensor of the cooling system is faulty or not, and judging whether the other of the water inlet pressure sensor and the water outlet pressure sensor is faulty or not, and whether at least one of a water inlet temperature sensor of the cooling system and a water outlet temperature sensor of the cooling system is faulty or not; if yes, controlling the cooling system to be switched to a shutdown state; if not, determining the current working mode of the cooling system and the target water pressure fault return difference corresponding to the current working mode, determining whether the cooling system meets the continuous operation condition or not based on the current water pressure in the water system of the cooling system and the target water pressure fault return difference, and executing a corresponding fault maintenance strategy according to the determination result of whether the continuous operation condition is met or not.

Description

Control method, device, equipment, system and storage medium of cooling system

Technical Field

The present invention relates to the field of water cooling technology, and in particular, to a control method, apparatus, device, system and computer readable storage medium for a cooling system.

Background

Currently, a plurality of water pressure sensors are arranged along a water flow path in a known cooling system, and the values acquired by the water pressure sensors are used for realizing reliability control of the cooling system. When one of the water pressure sensors of the cooling system fails, the cooling system will immediately stop operating.

However, if the cooling object of the cooling system is currently in a high heat dissipation working state, the cooling system cannot timely discharge heat of the cooling object based on a reliability control strategy of a hydraulic pressure sensor failure, namely shutdown, so that the cooling object fails, and even potential safety hazards such as fire disaster occur.

Disclosure of Invention

In order to solve the existing technical problems, embodiments of the present invention provide a control method, apparatus, device, system and computer readable storage medium for a cooling system, which improve the operational reliability of the cooling system.

The technical scheme of the embodiment of the invention is realized as follows:

in a first aspect, a control method of a cooling system is provided, including:

determining whether one of a water inlet pressure sensor of the cooling system and a water outlet pressure sensor of the cooling system is faulty or not, and judging whether the other of the water inlet pressure sensor and the water outlet pressure sensor is faulty or not, and whether at least one of a water inlet temperature sensor of the cooling system and a water outlet temperature sensor of the cooling system is faulty or not;

If yes, controlling the cooling system to be switched to a shutdown state;

if not, determining the current working mode of the cooling system and the target water pressure fault return difference corresponding to the current working mode, determining whether the cooling system meets the continuous operation condition or not based on the current water pressure in the water system of the cooling system and the target water pressure fault return difference, and executing a corresponding fault maintenance strategy according to the determination result of whether the continuous operation condition is met or not.

In a second aspect, there is provided a cooling system control apparatus including:

the judging module is used for judging whether one of the water inlet pressure sensor and the water outlet pressure sensor of the cooling system and at least one of the water inlet temperature sensor and the water outlet temperature sensor of the cooling system is faulty or not when one of the water inlet pressure sensor and the water outlet pressure sensor of the cooling system is faulty;

the first control module is used for controlling the cooling system to be switched to a shutdown state if at least one of the water inlet pressure sensor, the water outlet pressure sensor, the water inlet temperature sensor and the water outlet temperature sensor fails;

and the second control module is used for determining the current working mode of the cooling system and the target water pressure fault return difference corresponding to the current working mode if at least one of the water inlet pressure sensor, the water outlet pressure sensor, the water inlet temperature sensor and the water outlet temperature sensor has no faults, determining whether the cooling system meets the continuous operation condition or not based on the current water pressure in the water system of the cooling system and the target water pressure fault return difference, and executing the corresponding fault maintenance strategy according to the determination result of whether the continuous operation condition is met or not.

In a third aspect, there is provided a cooling system control apparatus comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of the control method of a cooling system according to any of the embodiments of the present application.

In a fourth aspect, a cooling system is provided, including water system and the cooling system control device according to the embodiment of the present application, cooling system control device with water system electricity is connected or communication connection, the water system includes hydrologic cycle actuating device, locates the water inlet pressure sensor of collection water inlet pressure and the water inlet temperature sensor of collection water inlet temperature of the water inlet end of hydrologic cycle actuating device, and locates the water outlet pressure sensor of collection water outlet pressure and the water outlet temperature sensor of collection water outlet temperature of the water outlet end of hydrologic cycle actuating device.

In a fifth aspect, a computer readable storage medium is provided, storing a computer program, which when executed by a processor, causes the processor to perform the steps of the method for controlling a cooling system provided by any of the embodiments of the present application.

According to the control method for the cooling system, when one of the water inlet pressure sensor and the water outlet pressure sensor in the cooling system fails, whether the other of the water inlet pressure sensor and the water outlet pressure sensor fails or not is further judged, if it is determined that only one of the water inlet pressure sensor and the water outlet pressure sensor fails in the cooling system, the current working mode of the cooling system and the target water pressure failure return difference corresponding to the current working mode are determined, whether the cooling system meets the continuous operation condition is determined based on the current water pressure in the water system of the cooling system and the target water pressure failure return difference, and a corresponding failure maintenance strategy is executed according to the determination result of whether the continuous operation condition is met.

The cooling system control device, the cooling system and the computer readable storage medium provided in the foregoing embodiments are respectively in the same conception as the corresponding control method embodiments of the cooling system, so that the same technical effects as the corresponding control method embodiments of the cooling system are respectively provided, and are not described herein.

Drawings

FIG. 1 is a system architecture diagram of an alternative application scenario of a control method of a cooling system in one embodiment;

FIG. 2 is a system architecture diagram of an alternative application scenario of a control method of a cooling system in another embodiment;

FIG. 3 is a flow chart of a method of controlling a cooling system according to an embodiment;

FIG. 4 is a flow chart of a method of controlling a cooling system in another embodiment;

FIG. 5 is a flow chart of a method of controlling a cooling system according to yet another embodiment;

FIG. 6 is a flow chart of a method of controlling a cooling system in an alternative specific example;

FIG. 7 is a flow chart of a method of controlling a cooling system in another alternative specific example;

FIG. 8 is a schematic diagram of a cooling system control device according to an embodiment;

FIG. 9 is a schematic diagram showing a structure of a cooling system control apparatus according to an embodiment;

fig. 10 is a schematic diagram of a cooling system according to an embodiment.

Detailed Description

The technical scheme of the invention is further elaborated below by referring to the drawings in the specification and the specific embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the scope of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the following description, reference is made to the expression "some embodiments" which describe a subset of all possible embodiments, but it should be understood that "some embodiments" may be the same subset or a different subset of all possible embodiments and may be combined with each other without conflict.

Referring to fig. 1, a cooling system architecture diagram of an optional application scenario of a control method of a cooling system provided in an embodiment of the present application is shown, where the cooling system includes a water system 50 and a control device 60 connected to the water system 50, and the water system 50 includes a water circulation driving device 55, a water inlet pressure sensor 51 for collecting water inlet pressure, a water outlet pressure sensor 52 for collecting water outlet pressure, a water inlet temperature sensor 53 for collecting water inlet temperature, and a water outlet temperature sensor 54 for collecting water outlet temperature. The water circulation driving device 55 may be a circulating water pump, the water inlet pressure sensor 51 and the water inlet temperature sensor 53 are disposed at the water inlet end of the circulating water pump, and the water outlet pressure sensor 52 and the water outlet temperature sensor 54 are disposed at the water outlet end of the circulating water pump. The water inlet pressure sensor 51, the water outlet pressure sensor 52, the water inlet temperature sensor 53 and the water outlet temperature sensor 54 are respectively connected with the control device 60, the respective collected data are sent to the control device 60 according to a set collection frequency or according to a received collection instruction, and the control device 60 judges the real-time working state of the cooling system according to the water inlet pressure collected by the water inlet pressure sensor 51, the water outlet pressure collected by the water outlet pressure sensor 52, the water inlet temperature collected by the water inlet temperature sensor 53 and the water outlet temperature collected by the water outlet temperature sensor 54, and correspondingly controls the working state of the water circulation driving device 55. As shown in fig. 1, the control device 60 may be a device physically separated and independent from the cooling system, and the control device 60 is connected in communication with each component device in the cooling system to implement data communication with each component device; as shown in fig. 2, the control device 56 may also be integrated with the cooling system, for example, the control device 56 may be composed of one or more controllers included in each component device in the cooling system, where a computer program for implementing the control method of the cooling system provided in the embodiment of the present application is loaded on the controllers, and the steps of the control method of the cooling system corresponding to the computer program are executed by the controllers.

Referring to fig. 3, a control method of a cooling system according to an embodiment of the present application may be applied to the control apparatus shown in fig. 1 or fig. 2, and includes the following steps.

S101, when one of an inlet water pressure sensor of the cooling system and an outlet water pressure sensor of the cooling system is determined to be faulty, judging whether the other one of the inlet water pressure sensor and the outlet water pressure sensor and at least one of an inlet water temperature sensor of the cooling system and an outlet water temperature sensor of the cooling system is faulty; if yes, executing S102, if not, executing S103;

s102, controlling the cooling system to be switched to a shutdown state;

s103, determining a current working mode of the cooling system and a target water pressure fault return difference corresponding to the current working mode, determining whether the cooling system meets a continuous operation condition or not based on the current water pressure in the water system of the cooling system and the target water pressure fault return difference, and executing a corresponding fault maintenance strategy according to a determination result of whether the continuous operation condition is met or not.

The cooling system is switched to a shutdown state when two or more than two sensors in the water inlet pressure sensor, the water outlet pressure sensor, the water inlet temperature sensor and the water outlet temperature sensor are in failure; when only one of the water inlet pressure sensor and the water outlet pressure sensor fails, whether the cooling system meets the continuous operation condition or not is judged according to the current working mode and the target water pressure failure return difference corresponding to the current working mode, different failure maintenance strategies are respectively formulated according to the further judgment of whether the cooling system meets the continuous operation condition, and when only one of the water inlet pressure sensor and the water outlet pressure sensor fails and the cooling system still can continuously operate, the failure maintenance time of the corresponding pressure sensor of the failure is delayed, so that the problem that the heat cannot be discharged in time due to the shutdown of the cooling system or the safety problem is caused due to the fact that the cooling object is in a high heat dissipation working state at present is avoided.

According to the control method of the cooling system, when one of the water inlet pressure sensor and the water outlet pressure sensor in the cooling system is in failure, whether the other one of the water inlet pressure sensor and the water outlet pressure sensor is in failure or not is further judged, if the fact that only one of the water inlet pressure sensor and the water outlet pressure sensor is in failure in the cooling system is determined, the current working mode of the cooling system and the target water pressure failure return difference corresponding to the current working mode are determined, whether the cooling system meets the continuous operation condition is determined based on the current water pressure in the water system of the cooling system and the target water pressure failure return difference, and a corresponding failure maintenance strategy is executed according to the determination result of whether the continuous operation condition is met or not.

In some embodiments, referring to fig. 4, S101, when determining that one of the water inlet pressure sensor and the water outlet pressure sensor of the cooling system is faulty, determining whether the other of the water inlet pressure sensor and the water outlet pressure sensor is faulty with at least one of the water inlet temperature sensor of the cooling system and the water outlet temperature sensor of the cooling system includes:

s1011, judging whether a water inlet pressure sensor of the cooling system and a water outlet pressure sensor of the cooling system are faulty; if the intake pressure sensor fails, S103 includes:

s1030, determining a current working mode of the cooling system and a target water pressure fault return difference corresponding to the current working mode;

s1034, determining whether the cooling system meets a continuous operation condition according to whether the difference value between the current water outlet pressure of the water system of the cooling system and the fault return difference of the target water pressure is smaller than a first set value;

s1035, if the difference value is smaller than the first set value, the cooling system does not meet the continuous operation condition, and the cooling system is controlled to be switched to a shutdown state and instant overhaul prompt information is output; the prompt information for immediate overhaul comprises a water supplementing alarm prompt and a water inlet pressure sensor fault prompt;

S1036, if the difference value is larger than or equal to the first set value, the cooling system meets the continuous operation condition, controls the cooling system to keep the current working state and outputs delay maintenance prompt information; the delayed overhaul prompt information comprises a fault prompt of the water inlet pressure sensor.

The cooling system comprises a plurality of working modes, the flow in the water circulation path in the water system is different under different working modes, and the water pressure fault return difference is calibrated when the cooling system is in different working modes, so that the water pressure fault return difference values respectively corresponding to the working modes are obtained. When the water inlet pressure sensor fails, determining that the water pressure failure return difference value corresponding to the water inlet pressure sensor is the target water pressure failure return difference according to the current working mode of the cooling system, calculating the difference value between the current water outlet pressure acquired by the water pressure sensor and the target water pressure failure return difference value, and determining whether the cooling system meets the continuous operation condition according to whether the difference value is smaller than a first set value. The fault maintenance strategy aiming at the condition that the cooling system does not meet the continuous operation condition at the moment is to control the cooling system to be switched to a shutdown state and output instant maintenance information, so that a user can timely know the type of the current fault in the cooling system according to the instant maintenance information, and timely maintenance and troubleshooting are facilitated according to actual conditions. The fault maintenance strategy for the cooling system which still can meet the continuous operation condition at the moment is to control the cooling system to keep the current working state and output delay maintenance prompt information so that a user can select the type of fault existing in the cooling system to carry out maintenance and elimination according to the actual situation through the delay maintenance prompt information.

In the above embodiment, when the water inlet pressure sensor in the cooling system fails, the control device may determine whether the cooling system may continue to operate according to the difference value between the current water outlet pressure collected by the water outlet pressure sensor and the target water pressure failure return difference, so as to prolong the corresponding pressure sensor fault maintenance time when it is determined that the cooling system may continue to normally operate, thereby effectively improving the reliability of the cooling system under the condition of ensuring the continuous operation time of the cooling system.

With continued reference to fig. 4, if the water outlet pressure sensor fails, S103 includes:

s1037, determining whether the cooling system meets a continuous operation condition according to whether the sum of the current water inlet pressure of the water system of the cooling system and the fault return difference of the target water pressure is larger than a second set value;

s1038, if the sum is larger than the second set value, the cooling system does not meet the continuous operation condition, and the cooling system is controlled to be switched to a shutdown state and instant overhaul prompt information is output; the prompt information for immediate overhaul comprises a water outlet high-pressure alarm prompt and a water outlet pressure sensor fault prompt;

S1039, if the sum is smaller than or equal to the second set value, the cooling system still meets the continuous operation condition, controls the cooling system to keep the current working state and outputs delay maintenance prompt information; the delayed overhaul prompt information comprises a fault prompt of the water outlet pressure sensor.

When the water outlet pressure sensor fails, determining that the water pressure failure return difference value corresponding to the water outlet pressure sensor is the target water pressure failure return difference according to the current working mode of the cooling system, calculating the sum of the current water inlet pressure collected by the water inlet pressure sensor and the target water pressure failure return difference, and determining whether the cooling system meets the continuous operation condition according to whether the sum is larger than a second set value. The fault maintenance strategy aiming at the condition that the cooling system does not meet the continuous operation condition at the moment is to control the cooling system to be switched to a shutdown state and output instant maintenance information, so that a user can timely know the type of the current fault in the cooling system according to the instant maintenance information, and timely maintenance and troubleshooting are facilitated according to actual conditions. The fault maintenance strategy for the cooling system which still can meet the continuous operation condition at the moment is to control the cooling system to keep the current working state and output delay maintenance prompt information so that a user can select the type of fault existing in the cooling system to carry out maintenance and elimination according to the actual situation through the delay maintenance prompt information.

In the above embodiment, when the water outlet pressure sensor in the cooling system fails, the control device may determine whether the cooling system may continue to operate according to the sum of the current water inlet pressure collected by the water inlet pressure sensor and the target water pressure failure return difference, so as to extend the corresponding pressure sensor fault maintenance time when it is determined that the cooling system may continue to normally operate, thereby effectively improving the reliability of the cooling system under the condition of ensuring the continuous operation time of the cooling system.

In some embodiments, the cooling system further comprises a refrigerant system connected to the water system; referring to fig. 5, the step S1030 of determining the current operation mode of the cooling system and the target water pressure fault return difference corresponding to the current operation mode includes:

s1031, judging whether the current working mode of the cooling system is a self-circulation mode;

s1032, if the self-circulation mode is adopted, determining a first target water pressure fault return difference corresponding to the self-circulation mode;

s1033, if the cooling system is in the non-self-circulation mode, judging the current gear of the cooling system according to the priorities of a plurality of gears in sequence, and determining a second target water pressure fault return difference corresponding to the current gear.

The working modes of the cooling system comprise a self-circulation mode in which only the water system is started and a non-self-circulation mode in which the water system and the refrigerant system are started together, and the water circulation driving device further comprises a plurality of working gears in the non-self-circulation mode. And respectively taking different working gears of the cooling system in a self-circulation mode and in a non-self-circulation mode as the working modes of the cooling system, and respectively determining the water pressure fault return difference corresponding to the different working gears of the cooling system in the self-circulation mode and in the non-self-circulation mode through pre-calibration. In the step of determining the current working mode and the target water pressure fault return difference corresponding to the current working mode, judging whether the cooling system is in a self-circulation mode or not, and sequentially judging the current working gear of the cooling system according to the priorities of a plurality of working gears, wherein the water pressure fault return difference corresponding to the current working mode of the cooling system is correspondingly determined as the target water pressure fault return difference. It should be noted that, in the embodiment of the present application, the first target water pressure failure return difference and the second target water pressure failure return difference are only for distinguishing and describing, and do not represent the number and the order.

In the above embodiment, under the architecture that the cooling system includes the water system and the refrigerant system, the working mode of the cooling system includes the self-circulation mode and the plurality of working gears in the non-self-circulation mode, and by sequentially determining whether the cooling system is in the self-circulation mode and the corresponding working gear in the non-self-circulation mode, the water pressure failure return difference required when the cooling system meets the condition that the cooling system can continue to operate can be quickly and accurately obtained.

Optionally, in the non-self-circulation mode, the plurality of working gears of the water circulation driving device includes five gears of a default gear, a first gear, a second gear, a third gear and a fourth gear. The priorities of the five gears are a default gear, a first gear, a second gear, a third gear and a fourth gear in sequence. In step S1033, the determining, according to the priorities of the plurality of gears, the current gear of the cooling system, and determining the second target water pressure fault return difference corresponding to the current gear includes:

judging whether the current gear of the cooling system is a default gear or not;

if the water pressure fault return difference is the default gear, confirming that the water pressure fault return difference corresponding to the default gear is the second target water pressure fault return difference;

If the gear is not the default gear, judging whether the current gear of the cooling system is a gear or not;

if the first gear is the first gear, confirming that the water pressure fault return difference corresponding to the first gear is the second target water pressure fault return difference;

if the gear is not the first gear, judging whether the current gear of the cooling system is the second gear;

if the second gear is the second gear, confirming that the water pressure fault return difference corresponding to the second gear is the second target water pressure fault return difference;

if the gear is not the second gear, judging whether the current gear of the cooling system is the third gear;

if the three-gear shift is the third gear shift, confirming that the water pressure fault return difference corresponding to the third gear shift is the second target water pressure fault return difference;

and if the hydraulic pressure failure return difference is not the third gear, confirming that the hydraulic pressure failure return difference corresponding to the fourth gear is the second target hydraulic pressure failure return difference.

Wherein, the working gear of the water circulation driving device is not limited to the five working gears, and can comprise more or less working gears in the non-self-circulation mode; the priority of the operating gear of the water circulation driving device is not limited to the above embodiment either, but may also be a priority that supports the user to set or adjust a plurality of operating gears in determining the current operating mode of the cooling system according to the actual use situation.

In some embodiments, if the current operation mode of the cooling system is a non-self-circulation mode, the control method of the cooling system further includes:

and determining whether the cooling system meets the normal working condition or not based on the inlet and outlet water temperature difference and the inlet and outlet water temperature difference alarm threshold value in the water system, and executing a corresponding fault maintenance strategy according to the determination result of whether the normal working condition is met or not.

The working modes of the cooling system comprise a self-circulation mode in which only the water system is started and a non-self-circulation mode in which the water system and the refrigerant system are started together, and the water circulation driving device further comprises a plurality of working gears in the non-self-circulation mode. And taking different working gears of the cooling system in the self-circulation mode and in the non-self-circulation mode as working modes of the cooling system respectively. When determining that the current working mode of the cooling system is a certain working gear in a non-self-circulation mode under the condition that one of the current water inlet pressure sensor and the current water outlet pressure sensor in the cooling system is in failure, determining the current working mode and a target water pressure failure return difference corresponding to the current working mode by the cooling system, determining whether the cooling system meets a continuous operation condition or not based on the current water pressure in the water system and the target water pressure failure return difference, and executing a corresponding fault maintenance strategy according to the determination result of whether the continuous operation condition is met or not, wherein the method further comprises the steps of: and acquiring an inlet-outlet water temperature difference alarm threshold, calculating an inlet-outlet water temperature difference according to the current inlet water temperature acquired by the inlet water temperature sensor and the current outlet water temperature acquired by the outlet water temperature sensor, determining whether the cooling system meets normal working conditions or not based on a comparison result of the inlet-outlet water temperature difference and the inlet-outlet water temperature difference alarm threshold, and executing a corresponding fault maintenance strategy according to a determination result of whether the normal working conditions are met or not.

In the embodiment of the application, under the condition that one of the water pressure sensor and the water outlet pressure sensor fails, the cooling system further judges whether the cooling system meets the continuous operation condition according to the internal water pressure and the water pressure failure return difference of the water system in the current working mode, judges whether the cooling system meets the continuous normal working condition according to the inlet water outlet temperature difference and the inlet water outlet temperature difference alarm threshold value, and sets different failure maintenance strategies for the condition that whether the cooling system can continue to normally operate and sets different failure maintenance strategies for the condition that the cooling system can continue to normally operate so as to timely control the cooling system to switch to a shutdown state and output alarm prompt information for a user to know the failure type when the cooling system is determined to be unable to continue to normally operate; when the cooling system is determined to still work normally, the fault maintenance strategy is set, so that the corresponding pressure sensor fault prompt is output under the condition that the cooling system is kept to work normally, the fault maintenance time of the corresponding pressure sensor is prolonged, and the reliability of the cooling system can be effectively improved.

Optionally, the determining whether the cooling system meets the normal working condition based on the water inlet and outlet temperature difference and the water inlet and outlet temperature difference alarm threshold value in the water system, and executing the corresponding fault maintenance strategy according to the determination result of whether the normal working condition is met, includes:

Judging whether the water inlet and outlet temperature difference in the water system is larger than an inlet and outlet water temperature difference alarm threshold value or not;

if the water inlet and outlet temperature difference is larger than the water inlet and outlet temperature difference alarm threshold, the cooling system does not meet the normal working condition, and the cooling system is controlled to be switched to a shutdown state and instant overhaul prompt information is output; the prompt information for immediate overhaul comprises a temperature difference alarm prompt and a corresponding pressure sensor fault prompt;

if the water inlet and outlet temperature difference is smaller than or equal to the water inlet and outlet temperature difference alarm threshold, the cooling system meets normal working conditions, controls the cooling system to keep the current working state and outputs delay maintenance prompt information; the delayed overhaul prompt information comprises corresponding pressure sensor fault prompts.

When it is determined that only one of the current water inlet pressure sensor and the current water outlet pressure sensor in the cooling system fails, and it is determined that the current working mode of the cooling system is any working gear under the non-self-circulation mode, whether the water inlet and outlet temperature difference in the cooling system is larger than the water inlet and outlet temperature difference alarm threshold value is judged, if the water inlet and outlet temperature difference is smaller than or equal to the water inlet and outlet temperature difference alarm threshold value, the cooling system still can continue to normally work to provide a cooling function for a cooling object, the cooling system is kept to continue to normally work while delayed maintenance prompt information is output, a user can timely remove the failure of the corresponding water pressure sensor under the prompt of the delayed maintenance prompt information, and if the water inlet and outlet temperature difference is larger than the water inlet and outlet temperature difference alarm threshold value, the cooling system is timely controlled to be switched to a shutdown state, and instant maintenance prompt information for the user to know the current failure type is output.

In this embodiment, when it is determined that only one of the water inlet pressure sensor and the water outlet pressure sensor in the cooling system is faulty, the judging strategy for whether the cooling system can continue to operate normally includes judging from the angle of water pressure and judging from the angle of water inlet and outlet temperatures, so that the reliability of the cooling system can be further ensured when the cooling system continues to operate when only one of the water inlet pressure sensor and the water outlet pressure sensor in the cooling system is faulty.

In some embodiments, the control method of the cooling system further comprises:

and determining the water pressure fault return difference corresponding to the working mode according to the flow and the resistance value in the water system corresponding to the working mode in each working mode of the cooling system.

Aiming at the working characteristics of the cooling system in different working modes, according to the flow and resistance values in the water system in different working modes of the cooling system, the water pressure fault return difference corresponding to the cooling system is determined through pre-calibration.

According to the embodiment of the application, according to the working characteristics of the cooling system corresponding to different working modes, the water pressure fault return difference of the cooling system in the different working modes is calibrated in advance, so that when the condition that only one of the current water inlet pressure sensor and the current water outlet pressure sensor in the cooling system is determined to be faulty is determined, the cooling system can be more accurately judged whether the cooling system still meets the condition of continuous operation or not.

Referring to fig. 6, in order to provide a more general understanding of the control method of the cooling system according to the embodiment of the present application, the following describes an example in which the cooling system includes six operating modes including a self-circulation mode, a default gear, a first gear, a second gear, a third gear and a fourth gear, and the control method of the cooling system includes:

s11, a water outlet pressure sensor fails;

s12, judging whether any one of the water inlet pressure sensor, the water inlet temperature sensor and the water outlet temperature sensor fails; if yes, executing S121, if not, executing S122;

s121, stopping the system;

s122, judging whether the self-circulation mode is adopted; if yes, executing S13, if not, executing S14;

s13, determining a water pressure judgment fault return difference A corresponding to the self-circulation mode;

s131, judging the water inlet pressure and the water pressure, and judging a fault return difference A > set value; if yes, executing S132, and triggering water outlet high-pressure alarm; if not, executing S133, and working normally;

s14, judging whether the gear is a default gear or not; if yes, executing S141-S148, otherwise, executing S15;

s141, determining a water pressure judgment fault return difference B corresponding to a default gear;

s142, judging the water inlet pressure and the water pressure, and judging a fault return difference B > set value; if yes, executing S143, and triggering water outlet high-pressure alarm; if not, executing S144, and working normally;

S145, determining an over-high water temperature difference alarm set value;

s146, judging that the water inlet and outlet temperature difference is greater than the water inlet and outlet temperature difference overhigh alarm set value; if yes, executing S147, triggering the excessive water inlet and outlet temperature difference to give an alarm and stop; if not, executing S148, and working normally;

s15, judging whether the gear is a first gear; if yes, executing S151-S158, if not, executing S16;

s151, determining a water pressure judgment fault return difference C corresponding to a first gear;

s152, judging the water inlet pressure and the water pressure, and judging a fault return difference C > set value; if yes, executing S153, and triggering water outlet high-pressure alarm; if not, executing S154, and working normally;

s155, determining an over-high water temperature difference alarm set value;

s156, judging that the water inlet and outlet temperature difference is greater than the water inlet and outlet temperature difference overhigh alarm set value; if yes, executing S157, triggering the excessive water inlet and outlet temperature difference to give an alarm and stop; if not, executing S158, and working normally;

s16, judging whether the gear is a second gear or not; if yes, executing S161-S168, if not, executing S17;

s161, determining a water pressure judgment fault return difference D corresponding to a first gear;

s162, judging the water inlet pressure and the water pressure, and judging the fault return difference D > set value; if yes, executing S163, and triggering water outlet high-pressure alarm; if not, executing S164, and working normally;

S165, determining an over-high water temperature difference alarm set value;

s166, judging that the inlet and outlet water temperature difference is greater than the inlet and outlet water temperature difference overhigh alarm set value; if yes, executing S167, triggering the excessive water inlet and outlet temperature difference to give an alarm and stop; if not, executing S168, and working normally;

s17, judging whether the gear is a third gear; if yes, executing S171 to S178, and if not, executing S181 to S188;

s171, determining a water pressure judgment fault return difference E corresponding to the third gear;

s172, judging the water inlet pressure and the water pressure, and judging a fault return difference E > set value; if yes, executing S173, and triggering water outlet high-pressure alarm; if not, executing S174, and working normally;

s175, determining an over-high water inlet and outlet temperature difference alarm set value;

s176, judging that the water inlet and outlet temperature difference is greater than the water inlet and outlet temperature difference overhigh alarm set value; if yes, executing S177, triggering the excessive water inlet and outlet temperature difference to give an alarm and stop; if not, executing S178, and working normally;

s181, determining a water pressure judgment fault return difference F corresponding to the fourth gear;

s182, judging the water inlet pressure and the water pressure, and judging a fault return difference F > set value; if yes, executing S183, and triggering water outlet high-pressure alarm; if not, executing S184, and working normally;

s185, determining an over-high water inlet and outlet temperature difference alarm set value;

S186, judging that the water inlet and outlet temperature difference is greater than the water inlet and outlet temperature difference overhigh alarm set value; if yes, executing S187, and triggering an excessive water inlet and outlet temperature difference alarm to stop; if not, S188 is executed, and normal operation is performed.

It should be noted that, the set value herein indicates a water high pressure alarm value; in each step of normal operation of the cooling system, the method can also comprise the step of outputting prompt information of the failure of the water outlet pressure sensor; and in each step of triggering the water outlet high-pressure alarm, controlling the cooling system to stop, and outputting prompt information of the failure of the water outlet pressure sensor.

In the above embodiment of the present application, when only the water pressure sensor fails in the cooling system, it is determined whether the cooling system can keep running continuously according to the current working mode of the cooling system, and when the cooling system is controlled to keep running continuously or stop, the corresponding alarm prompt information is output, so that a user can timely learn the type of the current failure in the cooling system, and immediately overhaul according to the actual requirement, or finish the delayed overhaul during the period that the cooling system can keep running continuously, for example, in the application of the cooling system in heat dissipation of the battery, when the battery is in charge-discharge working, if the cooling system stops due to a failure of one water pressure sensor, many potential safety hazards will be generated, and by adopting the control method of the cooling system in the embodiment of the present application, if only the water pressure sensor fails in the cooling system, it is further determined whether the cooling system meets the strategy of running continuously, the overhaul time after the failure of the water pressure sensor is prolonged, and the reliability of the operation of the cooling system can be effectively improved.

Referring to fig. 7, a cooling system including six working modes including a self-circulation mode, a default gear, a first gear, a second gear, a third gear and a fourth gear is still taken as an example, and an exemplary method for controlling a cooling system according to an embodiment of the present application is described, where the method for controlling a cooling system includes:

s21, a water inlet pressure sensor fails;

s22, judging whether any one of the water pressure sensor, the water inlet temperature sensor and the water outlet temperature sensor fails; if yes, executing S221, if not, executing S222;

s221, stopping the system;

s222, judging whether the self-circulation mode is adopted; if yes, executing S23, and if not, executing S24;

s23, determining a water pressure judgment fault return difference A corresponding to the self-circulation mode;

s231, judging that the water pressure-water pressure judging fault return difference A is smaller than a set value; if yes, executing S232, and triggering a water supplementing alarm to stop; if not, executing S233, and working normally;

s24, judging whether the gear is a default gear; if yes, executing S241-S248, if not, executing S25;

s241, determining a water pressure judgment fault return difference B corresponding to a default gear;

s242, judging that the water pressure-water pressure judging fault return difference B is smaller than a set value; if yes, executing S243, and triggering a water supplementing alarm to stop; if not, executing S244, and working normally;

S245, determining an over-high water temperature difference alarm set value;

s246, judging that the inlet and outlet water temperature difference is greater than the inlet and outlet water temperature difference overhigh alarm set value; if yes, executing S247, triggering the excessive water inlet and outlet temperature difference to give an alarm and stop; if not, executing S248, and working normally;

s25, judging whether the gear is a first gear; if yes, executing S251 to S258, and if not, executing S26;

s251, determining a water pressure judgment fault return difference C corresponding to a first gear;

s252, judging that the water pressure-water pressure judging fault return difference C is smaller than a set value; if yes, executing S253, and triggering a water supplementing alarm to stop; if not, executing S254, and working normally;

s255, determining an over-high water temperature difference alarm set value;

s256, judging that the inlet and outlet water temperature difference is greater than the inlet and outlet water temperature difference overhigh alarm set value; if yes, executing S257, triggering the excessive water inlet and outlet temperature difference to give an alarm and stop; if not, executing S258 to work normally;

s26, judging whether the gear is a second gear; if yes, executing S261 to S268, and if not, executing S27;

s261, determining a water pressure judgment fault return difference D corresponding to a first gear;

s262, judging that the water pressure-water pressure judging fault return difference D is smaller than a set value; if yes, executing S263, triggering a water supplementing alarm to stop; if not, executing S264, and working normally;

S265, determining an over-high water temperature difference alarm set value;

s266, judging that the inlet and outlet water temperature difference is greater than the inlet and outlet water temperature difference overhigh alarm set value; if yes, executing S267, triggering the excessive water inlet and outlet temperature difference to give an alarm and stop; if not, executing S268 to work normally;

s27, judging whether the gear is a third gear or not; if yes, executing S271-S278, otherwise, executing S281-S288;

s271, determining a water pressure judgment fault return difference E corresponding to the third gear;

s272, judging that the water pressure-water pressure judging fault return difference E is smaller than a set value; if yes, executing S273, triggering a water supplementing alarm to stop; if not, execution S274, normal operation;

s275, determining an over-high water temperature difference alarm set value;

s276, judging that the inlet and outlet water temperature difference is greater than the inlet and outlet water temperature difference overhigh alarm set value; if yes, executing S277, and triggering an excessive water inlet and outlet temperature difference alarm to stop; if not, executing S278, and working normally;

s281, determining a water pressure judgment fault return difference F corresponding to the fourth gear;

s282, judging that the water pressure-water pressure judging fault return difference F is smaller than a set value; if yes, executing S283, triggering a water supplementing alarm to stop; if not, executing S284, and working normally;

s285, determining an over-high water temperature difference alarm set value;

S286, judging that the water inlet and outlet temperature difference is greater than the water inlet and outlet temperature difference overhigh alarm set value; if yes, executing S287, and triggering an excessive water inlet and outlet temperature difference alarm to stop; if not, S288 is executed, and normal operation is performed.

It should be noted that, the set value herein refers to a water replenishment alarm preset value; in each step of normal operation of the cooling system, the method can also comprise the step of outputting prompt information of the fault of the water inlet pressure sensor; in each step of triggering the water supplementing alarm to stop, the method can also comprise the step of outputting prompt information of the fault of the water inlet pressure sensor.

In the above embodiment of the present application, when only the water inlet pressure sensor in the cooling system fails, it is determined whether the cooling system can keep running continuously according to the current working mode of the cooling system, and when the cooling system keeps running continuously or stops, the corresponding alarm prompt information is output to allow the user to timely learn the type of the failure currently existing in the cooling system, and to perform real-time maintenance according to the actual requirement, or to complete time-delay maintenance during the period that the cooling system can keep running continuously, for example, in the application of the cooling system for cooling the battery, when the battery is in charge-discharge working, if the cooling system stops due to a failure of one water pressure sensor, many potential safety hazards will be generated, and also unreasonable.

Referring to fig. 8, in another aspect of the embodiments of the present application, a cooling system control device is provided, which includes a determining module 21 configured to determine whether one of an inlet pressure sensor of the cooling system and an outlet pressure sensor of the cooling system is faulty, and determine whether the other of the inlet pressure sensor and the outlet pressure sensor is faulty with at least one of an inlet temperature sensor of the cooling system and an outlet temperature sensor of the cooling system; a first control module 22, configured to control the cooling system to switch to a shutdown state if at least one of the inlet water pressure sensor, the outlet water pressure sensor, the inlet water temperature sensor, and the outlet water temperature sensor fails; and a second control module 23, configured to determine a current operation mode of the cooling system and a target water pressure failure return difference corresponding to the current operation mode if at least one of the water inlet pressure sensor, the water outlet pressure sensor, the water inlet temperature sensor, and the water outlet temperature sensor has no failure, determine whether the cooling system meets a continuous operation condition based on the current water pressure in the water system of the cooling system and the target water pressure failure return difference, and execute a corresponding failure maintenance strategy according to a determination result of whether the continuous operation condition is met.

In some embodiments, the second control module 23 is further configured to determine whether the cooling system meets a continuous operation condition according to whether a difference between a current outlet water pressure of the water system of the cooling system and the target water pressure failure return is less than a first set value; if the difference value is smaller than the first set value, the cooling system does not meet the continuous operation condition, and the cooling system is controlled to be switched to a shutdown state and instant overhaul prompt information is output; the prompt information for immediate overhaul comprises a water supplementing alarm prompt and a water inlet pressure sensor fault prompt; if the difference value is larger than or equal to the first set value, the cooling system meets continuous operation conditions, the cooling system is controlled to keep the current working state, and delay maintenance prompt information is output, wherein the delay maintenance prompt information comprises a fault prompt of the water inlet pressure sensor.

In some embodiments, the second control module 23 is further configured to determine whether the cooling system meets a continuous operation condition according to whether a sum of a current inlet water pressure of a water system of the cooling system and the target water pressure failure return is greater than a second set value; if the sum is larger than the second set value, the cooling system does not meet the continuous operation condition, and the cooling system is controlled to be switched to a shutdown state and instant overhaul prompt information is output; the prompt information for immediate overhaul comprises a water outlet high-pressure alarm prompt and a water outlet pressure sensor fault prompt; if the sum is smaller than or equal to the second set value, the cooling system still meets the continuous operation condition, controls the cooling system to keep the current working state and outputs delay maintenance prompt information; the delayed overhaul prompt information comprises a fault prompt of the water outlet pressure sensor.

In some embodiments, the second control module 23 is further configured to determine whether the current operation mode of the cooling system is a self-circulation mode; if the self-circulation mode is adopted, determining a first target water pressure fault return difference corresponding to the self-circulation mode; and if the cooling system is in the non-self-circulation mode, sequentially judging the current gear of the cooling system according to the priorities of a plurality of gears, and determining a second target water pressure fault return difference corresponding to the current gear.

In some embodiments, the second control module 23 is further configured to determine whether the current gear of the cooling system is a default gear; if the water pressure fault return difference is the default gear, confirming that the water pressure fault return difference corresponding to the default gear is the second target water pressure fault return difference; if the gear is not the default gear, judging whether the current gear of the cooling system is a gear or not; if the first gear is the first gear, confirming that the water pressure fault return difference corresponding to the first gear is the second target water pressure fault return difference; if the gear is not the first gear, judging whether the current gear of the cooling system is the second gear; if the second gear is the second gear, confirming that the water pressure fault return difference corresponding to the second gear is the second target water pressure fault return difference; if the gear is not the second gear, judging whether the current gear of the cooling system is the third gear; if the three-gear shift is the third gear shift, confirming that the water pressure fault return difference corresponding to the third gear shift is the second target water pressure fault return difference; and if the hydraulic pressure failure return difference is not the third gear, confirming that the hydraulic pressure failure return difference corresponding to the fourth gear is the second target hydraulic pressure failure return difference.

In some embodiments, the second control module 23 is further configured to determine whether the cooling system meets a normal operating condition based on the inlet-outlet water temperature difference and the inlet-outlet water temperature difference alarm threshold value in the water system, and execute a corresponding troubleshooting strategy according to a determination result of whether the normal operating condition is met.

In some embodiments, the second control module 23 is further configured to determine whether the water inlet and outlet temperature difference in the water system is greater than an inlet and outlet water temperature difference alarm threshold; if the water inlet and outlet temperature difference is larger than the water inlet and outlet temperature difference alarm threshold, the cooling system does not meet the normal working condition, and the cooling system is controlled to be switched to a shutdown state and instant overhaul prompt information is output; the prompt information for immediate overhaul comprises a temperature difference alarm prompt and a corresponding pressure sensor fault prompt; if the water inlet and outlet temperature difference is smaller than or equal to the water inlet and outlet temperature difference alarm threshold, the cooling system meets normal working conditions, controls the cooling system to keep the current working state and outputs delay maintenance prompt information; the delayed overhaul prompt information comprises corresponding pressure sensor fault prompts.

In some embodiments, the system further comprises a calibration module, which is used for determining a water pressure fault return difference corresponding to the working mode according to the flow and the resistance value in the water system corresponding to the working mode in each working mode of the cooling system.

It should be noted that the structure provided in the embodiments of the present application does not constitute a limitation of the cooling system control device, and each of the modules may be implemented in whole or in part by software, hardware, or a combination thereof. The above modules may be embedded in hardware or independent of a controller in a computer device, or may be stored in software in a memory in the computer device, so that the controller may call and execute operations corresponding to the above modules. In other embodiments, more or fewer modules than shown may be included in the cooling system control device.

Referring to fig. 9, in another aspect of the embodiments of the present application, a cooling system control device is provided, including a memory 211 and a processor 212, where the memory 211 stores a computer program, and the computer program when executed by the processor causes the processor 212 to execute the steps of the cooling system control method provided in any of the embodiments of the present application.

Referring to fig. 10, in another aspect of the present embodiment, a cooling system is provided, including a water system 50 and a cooling system control device according to the present embodiment, where the cooling system control device is electrically connected or communicatively connected to the water system, and the water system includes a water circulation driving device 55, a water inlet pressure sensor 51 for collecting water inlet pressure and a water inlet temperature sensor 53 for collecting water inlet temperature, which are disposed at a water inlet end of the water circulation driving device 55, and a water outlet pressure sensor 52 for collecting water outlet pressure and a water outlet temperature sensor 54 for collecting water outlet temperature, which are disposed at a water outlet end of the water circulation driving device 55.

Optionally, the cooling system further includes a refrigerant system 70 connected to the water circulation driving device 55, the cooling system control device is electrically or communicatively connected to the refrigerant system 70, and the refrigerant system 70 includes a radiator 71 connected between the water inlet end and the water outlet end of the water circulation driving device 55, and a compressor 72, a condenser 73 and an expansion valve 74 connected between opposite ends of the radiator 71.

Optionally, the heat sink 73 is a plate-type heat sink, and the condenser includes a condensation pipe 731, fins 732 sleeved on the periphery of the condensation pipe 731, and a condensation fan 733 disposed on one side of the condensation pipe.

In another aspect of the embodiments of the present application, there is further provided a storage medium storing a computer program, where the computer program when executed by a processor causes the processor to execute the steps of the control method of the cooling system provided in any of the foregoing embodiments of the present application.

Those skilled in the art will appreciate that implementing all or part of the processes of the methods provided in the above embodiments may be accomplished by computer programs stored on a non-transitory computer readable storage medium, which when executed, may comprise processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the various embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. The scope of the invention is to be determined by the appended claims.

Claims

1. A control method of a cooling system, characterized by comprising:

if yes, controlling the cooling system to be switched to a shutdown state;

2. The control method of a cooling system according to claim 1, wherein when the intake pressure sensor fails, the determining whether the cooling system satisfies a continued operation condition based on a current water pressure in a water system of the cooling system and the target water pressure failure return difference, and executing a corresponding troubleshooting strategy according to a determination result of whether the continued operation condition is satisfied, comprises:

determining whether the cooling system meets a continuous operation condition according to whether the difference value between the current water outlet pressure of the water system of the cooling system and the fault return difference of the target water pressure is smaller than a first set value;

if the difference value is smaller than the first set value, the cooling system does not meet the continuous operation condition, and the cooling system is controlled to be switched to a shutdown state and instant overhaul prompt information is output; the prompt information for immediate overhaul comprises a water supplementing alarm prompt and a water inlet pressure sensor fault prompt;

if the difference value is larger than or equal to the first set value, the cooling system meets continuous operation conditions, the cooling system is controlled to keep the current working state, and delay maintenance prompt information is output, wherein the delay maintenance prompt information comprises a fault prompt of the water inlet pressure sensor.

3. The control method of a cooling system according to claim 1, wherein when the water outlet pressure sensor fails, the determining whether the cooling system satisfies a continuous operation condition based on a current water pressure in a water system of the cooling system and the target water pressure failure return difference, and executing a corresponding troubleshooting strategy according to a determination result of whether the continuous operation condition is satisfied, comprises:

determining whether the cooling system meets a continuous operation condition according to whether the sum of the current inlet water pressure of the water system of the cooling system and the fault return difference of the target water pressure is larger than a second set value;

if the sum is larger than the second set value, the cooling system does not meet the continuous operation condition, and the cooling system is controlled to be switched to a shutdown state and instant overhaul prompt information is output; the prompt information for immediate overhaul comprises a water outlet high-pressure alarm prompt and a water outlet pressure sensor fault prompt;

if the sum is smaller than or equal to the second set value, the cooling system still meets the continuous operation condition, controls the cooling system to keep the current working state and outputs delay maintenance prompt information; the delayed overhaul prompt information comprises a fault prompt of the water outlet pressure sensor.

4. A control method of a cooling system according to claim 2 or 3, characterized in that the cooling system further comprises a refrigerant system connected to the water system; the determining the current working mode of the cooling system and the target water pressure fault return difference corresponding to the current working mode comprises the following steps:

judging whether the current working mode of the cooling system is a self-circulation mode or not;

if the self-circulation mode is adopted, determining a first target water pressure fault return difference corresponding to the self-circulation mode;

and if the cooling system is in the non-self-circulation mode, sequentially judging the current gear of the cooling system according to the priorities of a plurality of gears, and determining a second target water pressure fault return difference corresponding to the current gear.

5. The method of controlling a cooling system according to claim 4, wherein the sequentially determining the current gear of the cooling system according to the priorities of the plurality of gears, determining the second target water pressure failure return difference corresponding to the current gear, comprises:

6. The method of claim 4, further comprising, if in a non-self-circulation mode:

7. The method for controlling a cooling system according to claim 6, wherein determining whether the cooling system satisfies a normal operation condition based on the inlet-outlet water temperature difference and the inlet-outlet water temperature difference alarm threshold value in the water system, and executing a corresponding troubleshooting strategy according to the determination result of whether the normal operation condition is satisfied, comprises:

8. The control method of a cooling system according to claim 1, characterized by further comprising:

9. A cooling system control apparatus, characterized by comprising:

10. A cooling system control device comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of the method of any one of claims 1 to 8.

11. A cooling system, comprising a water system and the cooling system control device according to claim 10, wherein the cooling system control device is electrically or communicatively connected with the water system, and the water system comprises a water circulation driving device, a water inlet pressure sensor for collecting water inlet pressure and a water inlet temperature sensor for collecting water inlet temperature, which are arranged at a water inlet end of the water circulation driving device, and a water outlet pressure sensor for collecting water outlet pressure and a water outlet temperature sensor for collecting water outlet temperature, which are arranged at a water outlet end of the water circulation driving device.

12. The cooling system of claim 11, further comprising a refrigerant system connected to the hydronic drive, the cooling system control device being in electrical or communicative connection with the refrigerant system, the refrigerant system including a radiator connected to the water inlet and outlet ends of the hydronic drive, and a compressor, condenser, and expansion valve connected between opposite ends of the radiator.

13. The cooling system of claim 12, wherein the heat sink is a plate heat sink, and the condenser comprises a condenser tube, fins sleeved on the periphery of the condenser tube, and a condensing fan arranged on one side of the condenser tube.

14. A computer readable storage medium storing a computer program, which when executed by a processor causes the processor to perform the steps of the method according to any one of claims 1 to 8.