Cooling liquid radiator low-temperature protection system and method

Abstract

The invention discloses a cooling liquid radiator low-temperature protection system and method, and belongs to the technical field of radiators, the system comprises an engine, a thermostat, a cooling liquid radiator, a sensor, a controller, a flow regulating valve and a bypass water way, the engine is connected with the thermostat and the cooling liquid radiator to form a cooling liquid circulation loop; the controller is used for judging according to the engine coolant temperature, the environment temperature and the thermostat starting temperature and outputting a control signal; the thermostat is used for adjusting a circulation loop of cooling liquid according to the control signal output by the controller; the bypass water way is used for controlling part of high-temperature cooling liquid to preheat the cooling liquid radiator. The flow regulating valve is used for controlling the flow of the cooling liquid in the bypass water path; the cooling liquid radiator is preheated through the bypass water way, the condition of cold and heat alternation is prevented, and the market failure rate of the cooling liquid radiator is reduced.

Description

Technical Field

[0001] The invention relates to a low temperature protection system and method for a coolant radiator, belonging to the technical field of radiators. Background Art

[0002] Now in winter or cold areas, the temperature of the water chamber inside the coolant radiator is almost the same as the ambient temperature before the large circulation is turned on. After the large circulation is turned on, the temperature difference between the coolant and the water chamber inside the coolant radiator is large. The coolant radiator is subjected to hot and cold shocks from the high-temperature coolant, which often causes cracks and leaks in the coolant radiator. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a low temperature protection system and method for a coolant radiator, which preheats the coolant radiator through a bypass water channel to prevent alternating hot and cold conditions and reduce the market failure rate of the coolant radiator.

[0004] To achieve the above object, the present invention is implemented by adopting the following technical solutions: In a first aspect, the present invention provides a low temperature protection system for a coolant radiator, comprising: An engine, wherein the engine is connected to a thermostat and a coolant radiator to form a coolant circulation loop; A coolant radiator is used to cool the high-temperature coolant flowing out of the engine and return it to the engine; Sensors for collecting engine coolant temperature, ambient temperature, and thermostat opening temperature; The controller is used to analyze and judge according to the engine coolant temperature, ambient temperature, and thermostat opening temperature, and output a control signal according to the set logic; A thermostat, used to adjust the circulation loop of the coolant according to the control signal output by the controller; A bypass water channel, the bypass water channel is connected in parallel to the circulation loop and is used to transport part of the high-temperature coolant flowing out of the engine to the coolant radiator for preheating; The flow regulating valve is used to adjust the flow size according to the control signal output by the controller, thereby controlling the flow of the coolant in the bypass water channel.

[0005] Furthermore, the controller is specifically used to adjust the opening of the flow control valve according to different ambient temperatures and coolant temperatures to control coolant of different flow rates to flow through the bypass water channel.

[0006] Furthermore, the controller is specifically used for: Receive the engine coolant temperature T collected by the sensor 水 、Ambient temperature T 环 , Thermostat opening temperature T节 ; When T is met 环 ≤T1 and T2≤T 水 ≤T 节 When the flow rate is 0, a control signal is output to the flow regulating valve to make the flow regulating valve work, the bypass water channel is opened, and part of the high-temperature coolant is controlled to pass through the bypass water channel to preheat the coolant radiator; When T is not satisfied 环 ≤T1 and T2≤T 水 ≤T 节 When the thermostat starts to open, the controller outputs a control signal to stop the flow regulating valve from working and close the bypass water channel; Among them, T1 is the set ambient reference temperature value; T2 is the set coolant reference temperature value.

[0007] Furthermore, the flow regulating valve is an opening valve or an electronic thermostat.

[0008] Furthermore, one end of the bypass water channel is connected to the water channel between the engine water jacket and the coolant radiator, and the other end is connected back to the water channel in front of the engine water jacket or the coolant radiator, wherein the water channel represents the coolant channel of the engine flowing through the coolant radiator and then returning to the engine.

[0009] Furthermore, a water pump is provided in the circulation loop to ensure that the coolant circulates in the cooling system.

[0010] In a second aspect, the present invention provides a protection method for a coolant radiator low temperature protection system according to any one of the aforementioned embodiments, which is applicable to a controller and includes: adjusting the opening of a flow regulating valve according to different ambient temperatures and coolant temperatures to control different flow rates of coolant to flow through a bypass water path.

[0011] Further, the opening of the flow control valve is adjusted according to different ambient temperatures and coolant temperatures to control coolant of different flow rates to flow through the bypass waterway, specifically including: Receive engine coolant temperature T 水 、Ambient temperature T 环 , Thermostat opening temperature T 节 ; When T is met 环 ≤T1 and T2≤T 水 ≤T 节 When the flow regulating valve is turned on, the control signal is output to make the flow regulating valve work, the bypass water channel is opened, and part of the high-temperature coolant is controlled to pass through the bypass water channel to preheat the coolant radiator; When T is not satisfied 环 ≤T1 and T2≤T 水 ≤T 节When the thermostat starts to open, the output control signal makes the flow control valve stop working and the bypass water channel is closed; Among them, T1 is the set ambient reference temperature value; T2 is the set coolant reference temperature value.

[0012] In a third aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the aforementioned methods.

[0013] In a fourth aspect, the present invention provides a computer device, comprising: Memory, for storing computer programs / instructions; A processor is used to execute the computer program / instructions to implement the steps of any of the aforementioned methods.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a low-temperature protection system and method for a coolant radiator. A bypass water channel is connected in parallel outside a large circulation, and part of the high-temperature coolant is controlled through the bypass water channel to preheat the coolant radiator. According to different ambient temperatures and coolant temperatures, different flow rates of coolant are controlled to flow through the bypass water channel to prevent hot and cold alternations and reduce the market failure rate of the coolant radiator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a low-temperature protection system for a coolant radiator provided by an embodiment of the present invention; Figure 2 The present invention provides a system schematic diagram of a low-temperature protection system for a coolant radiator. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0019] Embodiment 1, as Figure 1 As shown, this embodiment introduces a coolant radiator low temperature protection system, including: An engine, wherein the engine is connected to a thermostat and a coolant radiator to form a coolant circulation loop; A coolant radiator is used to cool the high-temperature coolant flowing out of the engine and return it to the engine; Sensors for collecting engine coolant temperature, ambient temperature, and thermostat opening temperature; The controller is used to analyze and judge according to the engine coolant temperature, ambient temperature, and thermostat opening temperature, and output a control signal according to the set logic; A thermostat, used to adjust the circulation loop of the coolant according to the control signal output by the controller; A bypass water channel, the bypass water channel is connected in parallel to the circulation loop and is used to transport part of the high-temperature coolant flowing out of the engine to the coolant radiator for preheating; The flow regulating valve is used to adjust the flow size according to the control signal output by the controller, thereby controlling the flow of the coolant in the bypass water channel.

[0020] The contents involved in the above embodiment are described below in conjunction with a preferred embodiment.

[0021] like Figure 1 As shown, the coolant radiator low temperature protection system provided in this embodiment is mainly composed of an engine, a thermostat, a coolant radiator, a controller, a water circuit, a water pump, a flow regulating valve, etc. A bypass water circuit is connected in parallel outside the large circulation, and part of the high-temperature coolant is controlled through the bypass water circuit to preheat the coolant radiator. According to different ambient temperatures and coolant temperatures, different flow rates of coolant are controlled to prevent cracking and leakage caused by hot and cold shocks caused by a large temperature difference between the water chamber and the coolant inside the coolant radiator when the large circulation is opened.

[0022] Engine: The engine generates heat, and the coolant takes the heat away by flowing through the engine water jacket; Thermostat: The thermostat is installed in the coolant circulation passage (usually at the water outlet of the cylinder head). It changes the water circulation route according to the control signal output by the controller according to the temperature of the engine coolant, so as to adjust the cooling intensity of the cooling system. Coolant radiator: cools the water in the engine through the engine's large circulation; Controller: Make judgments based on engine coolant temperature, ambient temperature, and thermostat opening temperature, and output PWM signals to flow control valves and other actuators based on logic settings; Water channel: This invention refers to the channel for the engine coolant to flow through the radiator and then return to the engine; Water pump: ensures the coolant circulates in the cooling system; Flow regulating valve: The present invention refers to adjusting the flow rate according to the signal sent by the controller, so as to realize the flow rate of the coolant in the bypass water path; the flow regulating valve is an opening valve or an electronic thermostat; the use of an electronic thermostat can more accurately control the flow rate of the water flow.

[0023] Implementation method: Figure 2 As shown, when implementing this example, a cooling system and controller communication are required: Set the ambient reference temperature value T1, set the coolant reference temperature value T2, The sensor collects the engine coolant temperature T 水 、Ambient temperature T 环 ; The controller is based on the engine coolant temperature T 水 、Ambient temperature T 环 , Thermostat opening temperature T 节 Make a judgment: When T is met 环 ≤T1 and T2≤T 水 ≤T 节 hour; At this time, the thermostat is not open, and the controller outputs a set signal to the actuators such as the opening valve. The actuators such as the opening valve work, and the bypass water circuit is opened to intervene. The bypass water circuit controls part of the high-temperature coolant to preheat the coolant radiator. The controller sends different signals to the actuators according to different ambient temperatures and coolant temperatures to control different flow rates of coolant. When T is not satisfied 环 ≤T1 and T2≤T 水 ≤T 节 hour; At this time, the thermostat begins to open, and the controller outputs the set signal to the actuators such as the opening valve. The actuators such as the opening valve do not work, and the bypass water channel is closed; Among them, the large cycle means: the engine thermostat is opened, the water in the cooling system water jacket is cooled by the radiator and then sent back to the water jacket by the water pump.

[0024] Embodiment 2: This embodiment provides a protection method for a coolant radiator low temperature protection system according to any one of Embodiment 1, which is applicable to a controller and includes: According to different ambient temperatures and coolant temperatures, adjust the opening of the flow control valve to control different flow rates of coolant flowing through the bypass water channel, including: Receive engine coolant temperature T 水 、Ambient temperature T 环 , Thermostat opening temperature T 节 ; When T is met 环 ≤T1 and T2≤T 水 ≤T 节 When the flow regulating valve is turned on, the control signal is output to make the flow regulating valve work, the bypass water channel is opened, and part of the high-temperature coolant is controlled to pass through the bypass water channel to preheat the coolant radiator; When T is not satisfied 环 ≤T1 and T2≤T 水 ≤T 节 When the thermostat starts to open, the output control signal makes the flow control valve stop working and the bypass water channel is closed; Among them, T1 is the set ambient reference temperature value; T2 is the set coolant reference temperature value.

[0025] Embodiment 3, this embodiment provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the steps of any one of the methods described in Embodiment 2 are implemented.

[0026] Embodiment 4: This embodiment provides a computer device, including: Memory, for storing computer programs / instructions; A processor, configured to execute the computer program / instructions to implement the steps of any one of the methods described in Example 2.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention. It should be understood by those skilled in the art that the embodiments of the present disclosure may be provided as methods, systems or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware aspects. Moreover, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0028] The present disclosure is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present disclosure. It should be understood that each process and / or block in the flowchart and / or block diagram and the combination of processes and / or blocks in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0029] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0030] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure rather than to limit its protection scope. Although the present disclosure has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that after reading the present disclosure, those skilled in the art can still make various changes, modifications or equivalent substitutions to the specific implementation methods of the invention, but these changes, modifications or equivalent substitutions are all within the protection scope of the disclosed claims to be approved.

Claims

1. A coolant radiator low temperature protection system, characterized in that: include: An engine, wherein the engine is connected to a thermostat and a coolant radiator to form a coolant circulation loop; A coolant radiator is used to cool the high-temperature coolant flowing out of the engine and return it to the engine; Sensors for collecting engine coolant temperature, ambient temperature, and thermostat opening temperature; The controller is used to analyze and judge according to the engine coolant temperature, ambient temperature, and thermostat opening temperature, and output a control signal according to the set logic; A thermostat, used to adjust the circulation loop of the coolant according to the control signal output by the controller; A bypass water channel, the bypass water channel is connected in parallel to the circulation loop and is used to transport part of the high-temperature coolant flowing out of the engine to the coolant radiator for preheating; The flow regulating valve is used to adjust the flow size according to the control signal output by the controller, thereby controlling the flow of the coolant in the bypass water channel.

2. The coolant radiator low temperature protection system according to claim 1, characterized in that: The controller is specifically used to adjust the opening of the flow control valve according to different ambient temperatures and coolant temperatures to control coolant of different flows to flow through the bypass water channel.

3. The coolant radiator low temperature protection system according to claim 2, characterized in that: The controller is specifically used for: Receive the engine coolant temperature T collected by the sensor 水 、Ambient temperature T 环 , Thermostat opening temperature T 节 ; When T is met 环 ≤T1 and T2≤T 水 ≤T 节 When the flow rate is 0, a control signal is output to the flow regulating valve to make the flow regulating valve work, the bypass water channel is opened, and part of the high-temperature coolant is controlled to pass through the bypass water channel to preheat the coolant radiator; When T is not satisfied 环 ≤T1 and T2≤T 水 ≤T 节 When the thermostat starts to open, the controller outputs a control signal to stop the flow regulating valve from working and close the bypass water channel; Among them, T1 is the set ambient reference temperature value; T2 is the set coolant reference temperature value.

4. The coolant radiator low temperature protection system according to claim 1, characterized in that: The flow regulating valve is an opening valve or an electronic thermostat.

5. The coolant radiator low temperature protection system according to claim 1, characterized in that: One end of the bypass water channel is connected to the water channel between the engine water jacket and the coolant radiator, and the other end is connected back to the water channel in front of the engine water jacket or the coolant radiator, wherein the water channel represents the coolant channel of the engine flowing through the coolant radiator and then returning to the engine.

6. The coolant radiator low temperature protection system according to claim 1, characterized in that: A water pump is provided in the circulation loop to ensure that the coolant circulates in the cooling system.

7. A protection method for a low temperature protection system of a coolant radiator according to claim 1, suitable for a controller, characterized in that: include: According to different ambient temperatures and coolant temperatures, the opening of the flow control valve is adjusted to control different flows of coolant to flow through the bypass water channel.

8. The protection method according to claim 7, characterized in that: The method of adjusting the opening of the flow control valve according to different ambient temperatures and coolant temperatures to control coolant of different flow rates to flow through the bypass water path specifically includes: Receive engine coolant temperature T 水 、Ambient temperature T 环 , Thermostat opening temperature T 节 ; When T is met 环 ≤T1 and T2≤T 水 ≤T 节 When the flow regulating valve is turned on, the control signal is output to make the flow regulating valve work, the bypass water channel is opened, and part of the high-temperature coolant is controlled to pass through the bypass water channel to preheat the coolant radiator; When T is not satisfied 环 ≤T1 and T2≤T 水 ≤T 节 When the thermostat starts to open, the output control signal makes the flow control valve stop working and the bypass water channel is closed; Among them, T1 is the set ambient reference temperature value; T2 is the set coolant reference temperature value.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method described in any one of claims 7 to 8 are implemented.

10. A computer device, characterized in that: include: Memory, for storing computer programs / instructions; A processor, configured to execute the computer program / instructions to implement the steps of the method according to any one of claims 7 to 8.

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