Coolant filling method, liquid cooling temperature control system and diagnostic equipment

Abstract

The present invention discloses a coolant filling method, a liquid-cooled temperature control system, and a diagnostic device. The method includes: during the process of filling coolant into the vehicle temperature control pipeline, receiving an air evacuation instruction sent by the diagnostic device; based on the air evacuation instruction, determining the current pipeline type corresponding to the vehicle temperature control pipeline; based on the current pipeline type, determining a target evacuation program and a target temperature control component, executing the target evacuation program, and controlling the target temperature control component to perform an air evacuation operation; monitoring the current evacuation state corresponding to the vehicle temperature control pipeline, forming an execution result message based on the current evacuation state, and sending the execution result message to the diagnostic device. This method can reduce the equipment cost, software development cost, and software applicability during the coolant filling process, and realize the diagnosis of software programs to ensure the normal operation of the liquid level temperature control system.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle control, and particularly to a coolant filling method, a liquid-cooled temperature control system, and a diagnostic device. Background Art

[0002] In order to ensure the temperature balance of the battery, motor, and integrated power system on a vehicle, a liquid-cooled temperature control system is generally required to be equipped on the vehicle. The liquid-cooled temperature control system includes a temperature control controller, a vehicle temperature control pipeline, and vehicle temperature control components. The vehicle temperature control components are arranged on the vehicle temperature control pipeline and are connected to the temperature control controller. The vehicle temperature control components work under the control of the temperature control controller to enable the coolant to flow in the vehicle temperature control pipeline, achieving a temperature control effect.

[0003] In the case of replacing the vehicle temperature control components after the vehicle is produced and off the production line, for example, in the case of a vehicle temperature control component failure or replacing the vehicle temperature control components during after-sales service, it is necessary to refill the coolant in the vehicle temperature control pipeline and ensure that the vehicle temperature control pipeline is filled with the coolant. At this time, the air in the vehicle temperature control pipeline needs to be emptied. On the vehicle production line, the vacuum pumping method is generally used to fill the coolant in the vehicle temperature control pipeline. However, in the case of replacing the vehicle temperature control components after the vehicle is produced and off the production line, if a vacuum coolant filling system is configured separately, the cost will be relatively high. In the case of replacing the vehicle temperature control components after the vehicle is produced and off the production line, if the temperature control water pump is directly driven to empty the air, for a relatively complex vehicle temperature control pipeline, the air emptying effect is not good, and it is impossible to ensure that the vehicle temperature control pipeline is filled with the coolant. Summary of the Invention

[0004] Embodiments of the present invention provide a coolant filling method, a liquid-cooled temperature control system, and a diagnostic device to solve the problems of high cost and poor air emptying effect in the existing coolant filling process.

[0005] The present invention provides a coolant filling method, including the following steps executed by the liquid-cooled temperature control system:

[0006] During the process of filling the coolant into the vehicle temperature control pipeline, receiving an air emptying instruction sent by the diagnostic device;

[0007] Based on the air emptying instruction, determining the current pipeline type corresponding to the vehicle temperature control pipeline;

[0008] Based on the current pipeline type, determining a target emptying procedure and a target temperature control component, executing the target emptying procedure, and controlling the target temperature control component to perform an air emptying operation;

[0009] Monitoring the current emptying state corresponding to the vehicle temperature control pipeline, forming an execution result message based on the current emptying state, and sending the execution result message to the diagnostic device.

[0010] Preferably, before executing the target evacuation procedure and controlling the target temperature control component to perform an air evacuation operation, the coolant filling method further includes:

[0011] When a temperature control valve is included in the vehicle temperature control pipeline, the current ambient temperature is collected in real time;

[0012] When the current ambient temperature is less than the opening temperature threshold corresponding to the temperature control valve, the coolant in the vehicle temperature control pipeline is heated, and the coolant temperature corresponding to the coolant in the vehicle temperature control pipeline is collected in real time;

[0013] When the coolant temperature is not less than the opening temperature threshold corresponding to the temperature control valve, the temperature control valve is controlled to open.

[0014] Preferably, based on the current pipeline type, determining a target evacuation procedure and a target temperature control component, executing the target evacuation procedure, and controlling the target temperature control component to perform an air evacuation operation includes:

[0015] When the current pipeline type is an independent pipeline type, the vehicle temperature control pipeline includes independently arranged first and second temperature control pipelines. The independent evacuation procedure is determined as the target evacuation procedure, and the first temperature control water pump on the first temperature control pipeline and the second temperature control water pump on the second temperature control pipeline are determined as the target temperature control components;

[0016] Execute the independent evacuation procedure, and independently control the first temperature control water pump to perform an air evacuation operation and control the second temperature control water pump to perform an air evacuation operation.

[0017] Preferably, based on the current pipeline type, determining a target evacuation procedure and a target temperature control component, executing the target evacuation procedure, and controlling the target temperature control component to perform an air evacuation operation includes:

[0018] When the current pipeline type is a coupled pipeline type, the vehicle temperature control pipeline includes first and second temperature control pipelines arranged in a coupled manner. The first and second temperature control pipelines are coupled through a switching valve. The coupled evacuation procedure is determined as the target evacuation procedure, and the switching valve, the first temperature control water pump on the first temperature control pipeline, and the second temperature control water pump on the second temperature control pipeline are determined as the target temperature control components;

[0019] Execute the coupled evacuation procedure. When the switching valve is in the first conduction state, control the first temperature control water pump to perform an air evacuation operation, control the switching valve to switch to the second conduction state, and control the second temperature control water pump to perform an air evacuation operation.

[0020] Preferably, controlling the first temperature-controlled water pump to perform an air evacuation operation includes:

[0021] Based on the first sine wave signal, controlling the first temperature-controlled water pump to run for one rotation cycle and updating the first operation count;

[0022] If the first operation count is greater than the target count threshold, updating the current evacuation state corresponding to the first temperature control pipeline to the evacuation completed state;

[0023] If the first operation count is not greater than the target count threshold, repeatedly execute the step of controlling the first temperature-controlled water pump to run for one rotation cycle based on the first sine wave signal and updating the first operation count;

[0024] Controlling the second temperature-controlled water pump to perform an air evacuation operation includes:

[0025] Based on the second sine wave signal, controlling the second temperature-controlled water pump to run for one rotation cycle and updating the second operation count;

[0026] If the second operation count is greater than the target count threshold, updating the current evacuation state corresponding to the second temperature control pipeline to the evacuation completed state;

[0027] If the second operation count is not greater than the target count threshold, repeatedly execute the step of controlling the second temperature-controlled water pump to run for one rotation cycle based on the second sine wave signal and updating the second operation count.

[0028] Preferably, controlling the first temperature-controlled water pump to perform an air evacuation operation includes:

[0029] Based on the first sine wave signal, controlling the first temperature-controlled water pump to run for one rotation cycle;

[0030] Real-time collecting the first current liquid level corresponding to the coolant in the coolant expansion tank connected to the first temperature-controlled water pump;

[0031] Based on the first current liquid level and the first historical liquid level collected in the previous rotation cycle, obtaining the first liquid level difference;

[0032] If the first liquid level difference is less than or equal to the target liquid level threshold, updating the current evacuation state corresponding to the first temperature control pipeline to the evacuation completed state;

[0033] If the first liquid level difference is greater than the target liquid level threshold, repeatedly execute the step of controlling the first temperature-controlled water pump to run for one rotation cycle based on the first sine wave signal;

[0034] Controlling the second temperature-controlled water pump to perform an air evacuation operation includes:

[0035] Based on the second sine wave signal, control the second temperature control water pump to run for one rotation period;

[0036] Real-time collect the second current liquid level corresponding to the coolant in the coolant expansion tank connected to the second temperature control water pump;

[0037] Based on the second current liquid level and the second historical liquid level collected in the previous rotation period, obtain the second liquid level difference;

[0038] If the second liquid level difference is less than or equal to the target liquid level threshold, update the current evacuation state corresponding to the second temperature control pipeline to the evacuation completion state;

[0039] If the second liquid level difference is greater than the target liquid level threshold, repeat the step of controlling the second temperature control water pump to run for one rotation period based on the second sine wave signal.

[0040] Preferably, monitor the current evacuation state corresponding to the vehicle temperature control pipeline, form an execution result message based on the current evacuation state, and send the execution result message to the diagnostic device, including:

[0041] Receive the result query instruction sent at intervals by the diagnostic device within the target execution period;

[0042] Based on the result query instruction, monitor the current evacuation state corresponding to the vehicle temperature control pipeline;

[0043] Based on the current evacuation state corresponding to the vehicle temperature control pipeline, obtain the execution result message corresponding to the result query instruction, and send the execution result message to the diagnostic device.

[0044] The present invention provides a liquid-cooled temperature control system, which includes a temperature control controller, a vehicle temperature control pipeline, and vehicle temperature control components; the vehicle temperature control components are arranged on the vehicle temperature control pipeline, and the vehicle temperature control components are connected to the temperature control controller. The temperature control controller includes a memory, a processor, and a coolant filling program stored in the memory and executable on the processor. When the processor executes the coolant filling program, the above-mentioned coolant filling method is realized.

[0045] The present invention provides a coolant filling method, including the following steps executed by a diagnostic device:

[0046] During the process of filling the vehicle temperature control pipeline with coolant, generate an air evacuation instruction, and send the air evacuation instruction to the liquid-cooled temperature control system, so that the liquid-cooled temperature control system determines the current pipeline type, target evacuation program, and target temperature control component corresponding to the vehicle temperature control pipeline based on the air evacuation instruction, executes the target evacuation program, and controls the target temperature control component to perform an air evacuation operation;

[0047] Receive an execution result message formed by the liquid cooling temperature control system based on monitoring the current evacuation state of the vehicle temperature control pipeline. Based on the execution result message, obtain the program execution result, and control the display interface to display the program execution result.

[0048] Preferably, the receiving the execution result message formed by the liquid cooling temperature control system based on monitoring the current evacuation state of the vehicle temperature control pipeline, obtaining the program execution result based on the execution result message, and controlling the display interface to display the program execution result includes:

[0049] Form result query instructions at intervals within the target execution period, and send the result query instructions to the liquid cooling temperature control system;

[0050] Receive the execution result message fed back by the liquid cooling temperature control system within the target execution period;

[0051] Based on all the execution result messages received within the target execution period, obtain the program execution result, and control the display interface to display the program execution result.

[0052] The present invention provides a diagnostic device, which includes a memory, a processor, and a coolant filling program stored in the memory and operable on the processor. When the processor executes the coolant filling program, the above-mentioned coolant filling method is implemented.

[0053] The above-mentioned coolant filling method, liquid cooling temperature control system, and diagnostic device can trigger the determination of the current pipeline type, target evacuation program, and target temperature control component according to the air evacuation instruction, execute the target evacuation program to control the target temperature control component to perform the air evacuation operation, and realize the air evacuation operation using the target temperature control component configured in the vehicle itself, without the need to additionally use a vacuum pumping device for vacuum pumping and injection, which is beneficial to saving equipment costs; according to the different current pipeline types, different target evacuation programs and target temperature control components are determined, which can realize the control of the vehicle temperature control pipelines corresponding to different current pipeline types, which is beneficial to reducing software development costs and software applicability, and there is no need to independently develop corresponding target evacuation programs for the vehicle temperature control pipelines corresponding to each pipeline type. The temperature control controller can form an execution result message based on monitoring the current evacuation state corresponding to the vehicle temperature control pipeline, and send the execution result message to the diagnostic device, so that the diagnostic device can detect whether the target evacuation program built in the liquid cooling temperature control system is executed successfully, realize program diagnosis, and ensure the normal operation of the liquid cooling temperature control system. Description of the Drawings

[0054] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0055] Figure 1 is a circuit schematic diagram of a vehicle temperature control pipeline in an embodiment of the present invention;

[0056] Figure 2 is another circuit schematic diagram of a vehicle temperature control pipeline in an embodiment of the present invention;

[0057] Figure 3 is a flowchart of a coolant filling method in an embodiment of the present invention;

[0058] Figure 4 is another flowchart of a coolant filling method in an embodiment of the present invention. Detailed Embodiments

[0059] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0060] It should be understood that the present invention can be implemented in different forms and should not be construed as limited to the embodiments presented herein. On the contrary, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of the present invention to those skilled in the art. In the drawings, for clarity, the dimensions and relative dimensions of layers and regions may be exaggerated. The same reference numerals denote the same elements throughout the drawings.

[0061] It should be understood that when an element or layer is referred to as being "on", "adjacent to", "connected to" or "coupled to" another element or layer, it can be directly on, adjacent to, connected or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on", "directly adjacent to", "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc. may be used to describe various elements, components, regions, layers and / or portions, these elements, components, regions, layers and / or portions should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or portion from another element, component, region, layer or portion. Thus, a first element, component, region, layer or portion discussed below may be denoted as a second element, component, region, layer or portion without departing from the teachings of the present invention.

[0062] Spatial relationship terms such as "under", "below", "beneath", "underneath", "above", "over", etc. are used herein for convenience in describing the relationship of one element or feature shown in the figures to other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relationship terms are intended to include different orientations of the device in use and operation. For example, if the device in the figures is flipped, then an element or feature described as "under" or "beneath" or "underneath" another element or feature will be oriented "over" the other element or feature. Thus, the exemplary terms "under" and "beneath" can include both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or other orientations) and the spatial descriptors used herein are to be interpreted accordingly.

[0063] The purpose of the terms used herein is only to describe specific embodiments and is not a limitation of the present invention. As used herein, the singular forms "a", "an" and "the" are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprising" and / or "including", when used in this specification, specify the presence of the stated features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups. As used herein, the term "and / or" includes any and all combinations of the associated listed items.

[0064] To fully understand the present invention, detailed structures and steps will be set forth in the following description in order to explain the technical solutions proposed by the present invention. The preferred embodiments of the present invention are described in detail below. However, in addition to these detailed descriptions, the present invention may have other embodiments.

[0065] An embodiment of the present invention provides a coolant filling method, which is applied to a coolant filling system. The coolant filling system includes a liquid cooling temperature control system provided on a vehicle and a diagnostic device connected to the liquid cooling temperature control system; the liquid cooling temperature control system includes a temperature control controller, a vehicle temperature control pipeline, and vehicle temperature control components; the vehicle temperature control components are arranged on the vehicle temperature control pipeline, and the vehicle temperature control components are connected to the temperature control controller, and perform an air evacuation operation under the control of the temperature control controller to fill the vehicle temperature control pipeline with coolant and there is no air. In this example, the temperature control controller can be a vehicle controller on the vehicle or other independently provided controllers.

[0066] As an example, as Figure 1 shown, the vehicle temperature control pipeline includes an independently arranged battery temperature control pipeline and an electric drive temperature control pipeline; a battery system, a battery temperature control water pump, and a parallel-connected battery cooler and battery heater are provided on the battery temperature control pipeline. The positions of the battery system and the battery temperature control water pump are not limited, as long as the battery cooler and the battery heater are arranged in parallel. For example, as Figure 1 shown, one end of the battery system is connected to the battery temperature control water pump, and the other end is connected to the battery cooler and the battery heater; one end of the battery temperature control water pump is connected to the battery system, and the other end is connected to the battery cooler and the battery heater; one end of the battery cooler is connected to the battery temperature control water pump, and the other end is connected to the battery system; one end of the battery system is connected to the battery temperature control water pump, and the other end is connected to the battery system. An electric drive system, an electric drive temperature control water pump, and an evaporation radiator are sequentially provided on the electric drive temperature control pipeline.

[0067] As another example, as Figure 2 shown, the vehicle temperature control pipeline includes a coupled battery temperature control pipeline and an electric drive temperature control pipeline, and the battery temperature control pipeline and the electric drive temperature control pipeline are connected by a switching valve. A battery system, a battery temperature control water pump, and a parallel-connected battery cooler and battery heater are provided on the battery temperature control pipeline. The positions of the battery system and the battery temperature control water pump are not limited, as long as the battery cooler and the battery heater are arranged in parallel. For example, as Figure 2As shown, one end of the battery system is connected to the battery temperature control water pump, and the other end is connected to the battery cooler and the battery heater; one end of the battery temperature control water pump is connected to the battery system, and the other end is connected to the battery cooler and the battery heater; one end of the battery cooler is connected to the battery temperature control water pump, and the other end is connected to the battery system; one end of the battery system is connected to the battery temperature control water pump, and the other end is connected to the battery system. A drive system, a drive temperature control water pump, and an evaporation radiator are sequentially provided on the electric drive temperature control pipeline. In this example, in order to ensure that during the coupling process of the battery temperature control pipeline and the electric drive temperature control pipeline, the coolant in the battery temperature control pipeline and the electric drive temperature control pipeline flows in the same direction, and to avoid the opposite flow directions of the coolant in different temperature control pipelines from affecting the temperature control effect, a one-way valve can be set on any one of the two temperature control pipelines, namely the battery temperature control pipeline and the electric drive temperature control pipeline, to ensure that the coolant flows in the same direction in the two temperature control pipelines. As an example, both the battery temperature control pipeline and the electric drive temperature control pipeline can be temperature control pipelines including a junction temperature valve, or can be temperature control pipelines not including a junction temperature valve. Figure 2 Fig. shows an example of setting a one-way valve and a junction temperature valve on the electric drive temperature control pipeline. Understandably, the one-way valve and the junction temperature valve can be set at other positions as long as their basic functions are achieved.

[0068] In one embodiment, as Figure 3 shown, a coolant filling method is provided. Taking the application of this method in the Figure 1 or Figure 2 liquid cooling temperature control system as an example for illustration, the coolant filling method includes:

[0069] S301: During the process of filling the coolant into the vehicle temperature control pipeline, receive the air evacuation instruction sent by the diagnostic device.

[0070] S302: Based on the air evacuation instruction, determine the current pipeline type corresponding to the vehicle temperature control pipeline.

[0071] S303: Based on the current pipeline type, determine the target evacuation program and the target temperature control component, execute the target evacuation program, and control the target temperature control component to perform the air evacuation operation.

[0072] S304: Monitor the current evacuation status corresponding to the vehicle temperature control pipeline, form an execution result message based on the current evacuation status, and send the execution result message to the diagnostic device.

[0073] Among them, the air evacuation instruction is an instruction used to prompt the liquid cooling temperature control system to perform the air evacuation operation.

[0074] As an example, in step S301, during the process of filling the vehicle temperature control pipeline with coolant, the temperature control controller can receive the air evacuation instruction sent by the diagnostic device connected to it. Here, the diagnostic device refers to a device that provides Unified Diagnostic Services (UDS services), and the air evacuation instruction formed by the diagnostic device is specifically a UDS instruction. In this example, during the process of filling the vehicle temperature control pipeline with coolant, a dedicated coolant filling device can be used to fill the coolant expansion tank connected to the vehicle temperature control pipeline, or it can be manually operated by an operator.

[0075] Among them, the current pipeline type refers to the type corresponding to whether the battery temperature control pipeline and the electric drive temperature control pipeline in the vehicle temperature control pipeline are coupled. In this example, the current pipeline type includes an independent pipeline type and a coupled pipeline type. The independent pipeline type refers to the type in which the battery temperature control pipeline and the electric drive temperature control pipeline are independently arranged. The coupled pipeline type refers to the type in which the battery temperature control pipeline and the electric drive temperature control pipeline are coupled, that is, the type in which the battery temperature control pipeline and the electric drive temperature control pipeline are connected through a switching valve. Here, the switching valve is a three-way valve.

[0076] As an example, in step S302, after receiving the air evacuation instruction, the temperature control controller triggers the execution of the pipeline type detection program to determine the current pipeline type corresponding to the vehicle temperature control pipeline in the vehicle. Here, the pipeline type detection program is a pre-configured program for detecting and determining the pipeline type corresponding to the vehicle temperature control pipeline in the vehicle. Understandably, the temperature control controller will only execute the pipeline type detection program to determine the current pipeline type after receiving the trigger instruction of the air evacuation instruction.

[0077] Among them, the target evacuation program is a program corresponding to the current pipeline type for controlling and implementing the air evacuation operation. The target temperature control component refers to the vehicle temperature control component controlled by the target evacuation program to execute the air evacuation operation.

[0078] In this example, the temperature control controller pre-stores the configured evacuation programs corresponding to different configured pipeline types, and each configured evacuation program corresponds to at least one vehicle temperature control component. Among them, the configured pipeline type is a pre-configured pipeline type. The configured evacuation program refers to a program corresponding to the configured pipeline type for controlling and implementing the air evacuation operation. The vehicle temperature control component refers to the vehicle temperature control component controlled by the configured evacuation program to execute the air evacuation operation.

[0079] As an example, in step S303, when determining the current pipeline type corresponding to the vehicle temperature control pipeline, the temperature control controller may first query the pre-stored configuration evacuation procedures corresponding to different configured pipeline types based on the current pipeline type, determine the configuration evacuation procedure corresponding to the configured pipeline type that is the same as the current pipeline type as the target evacuation procedure, and determine the vehicle temperature control component corresponding to the target evacuation procedure as the target temperature control component. Then, the temperature control controller executes the target evacuation procedure to control the target temperature control component to perform an air evacuation operation to evacuate the air in the vehicle temperature control pipeline, so that the vehicle temperature control pipeline is filled with coolant.

[0080] As an example, in step S304, during the process of the temperature control controller executing the target evacuation procedure to control the target temperature control component to perform an air evacuation operation, it is necessary to monitor the current evacuation state corresponding to the vehicle temperature control pipeline in real time. The current evacuation state is a state used to feedback whether the air in the vehicle temperature control pipeline has been evacuated, including an evacuation completion state and an evacuation execution state. Then, during the process of the temperature control controller executing the target evacuation procedure to control the target temperature control component to perform an air evacuation operation, it is necessary to monitor the current evacuation state corresponding to the vehicle temperature control pipeline to determine whether the air in the vehicle temperature control pipeline has been evacuated. Then, the temperature control controller needs to determine an execution result message based on the current evacuation state corresponding to the vehicle temperature control pipeline. The execution result message is a message used to reflect whether the target evacuation procedure has been executed successfully. In this example, the execution result message includes an execution success message and an execution busy message. For example, if the current evacuation state corresponding to the vehicle temperature control pipeline is the evacuation completion state, the execution success message is determined as the execution result message; if the current evacuation state corresponding to the vehicle temperature control pipeline is the evacuation execution state, the execution busy message is determined as the execution result message. Finally, the temperature control controller can send the execution result message to the diagnostic device so that the diagnostic device can determine whether the target evacuation procedure has been executed successfully according to the received execution result message, realize program diagnosis, and ensure the normal operation of the liquid-cooled temperature control system.

[0081] In the coolant filling method provided by this embodiment, the current pipeline type, the target evacuation program, and the target temperature control component can be determined according to the air evacuation instruction trigger, and the target evacuation program is executed to control the target temperature control component to perform the air evacuation operation, so as to realize the air evacuation operation by using the target temperature control component configured in the vehicle itself, without the need to additionally use a vacuum pumping device for vacuum pumping and injection, which is beneficial to saving equipment costs; according to the different current pipeline types, different target evacuation programs and target temperature control components are determined, and the vehicle temperature control pipelines corresponding to different current pipeline types can be controlled, which is beneficial to reducing software development costs and software applicability, and there is no need to independently develop corresponding target evacuation programs for the vehicle temperature control pipelines corresponding to each pipeline type. The temperature control controller can form an execution result message based on the monitored current evacuation state corresponding to the vehicle temperature control pipeline, and send the execution result message to the diagnostic device, so that the diagnostic device can detect whether the target evacuation program built in the liquid cooling temperature control system is executed successfully, realize program diagnosis, and ensure the normal operation of the liquid cooling temperature control system.

[0082] In one embodiment, after step S301, that is, during the process of filling the coolant into the vehicle temperature control pipeline and after receiving the air evacuation instruction sent by the diagnostic device, the coolant filling method further includes:

[0083] Real-time collect the current state data corresponding to the vehicle temperature control pipeline. When the current state data meets the air evacuation condition, execute the determination of the current pipeline type corresponding to the vehicle temperature control pipeline based on the air evacuation instruction.

[0084] Among them, the current state data refers to the data related to the state of the vehicle temperature control pipeline collected in real time. The air evacuation condition is a pre-configured condition for limiting whether to enter the air evacuation operation. For example, the air evacuation condition can be set that during the process of filling the coolant into the vehicle temperature control pipeline, the volume of the filled coolant reaches the threshold.

[0085] As an example, after receiving the air evacuation instruction, the temperature control controller needs to collect the current state data corresponding to the vehicle temperature control pipeline in real time. When the current state data meets the pre-configured air evacuation condition, it executes the determination of the current pipeline type corresponding to the vehicle temperature control pipeline based on the air evacuation instruction, that is, executes step S302, so as to avoid performing the air evacuation operation when the current state data does not meet the air evacuation condition and avoid performing invalid operations, such as performing an invalid air evacuation operation when there is no coolant in the vehicle temperature control pipeline.

[0086] In one embodiment, after step S301, that is, during the process of filling the coolant into the vehicle temperature control pipeline and after receiving the air evacuation instruction sent by the diagnostic device, the coolant filling method further includes:

[0087] Collect the current measured level of the coolant in the coolant expansion tank connected to the vehicle temperature control pipeline in real time. When the current measured level is between the minimum level and the maximum level, execute the air evacuation instruction to determine the current pipeline type corresponding to the vehicle temperature control pipeline.

[0088] Among them, the current measured level refers to the current measured level of the coolant in the coolant expansion tank, and this current measured level is one of the current state data corresponding to the vehicle temperature control pipeline. The minimum level refers to the minimum level of the coolant in the coolant expansion tank when the liquid cooling temperature control system is working normally. The maximum level refers to the maximum level of the coolant in the coolant expansion tank when the liquid cooling temperature control system is working normally.

[0089] As an example, after receiving the air evacuation instruction, the temperature control controller needs to collect in real time the current measured level of the coolant in the coolant expansion tank connected to the vehicle temperature control pipeline, which is the current state data. When the current measured level is between the minimum level and the maximum level, it is determined that the current state data meets the air evacuation condition, and then execute the air evacuation instruction to determine the current pipeline type corresponding to the vehicle temperature control pipeline, that is, execute step S302, so as to avoid performing the air evacuation operation when the current state data does not meet the air evacuation condition and avoid performing ineffective operations, such as performing ineffective air evacuation operations when there is no coolant in the vehicle temperature control pipeline.

[0090] In one embodiment, step S302, that is, based on the air evacuation instruction, determine the current pipeline type corresponding to the vehicle temperature control pipeline, includes:

[0091] Based on the air evacuation instruction, query the vehicle configuration information in the system memory.

[0092] According to the vehicle configuration information, determine the current pipeline type corresponding to the vehicle temperature control pipeline.

[0093] Among them, the vehicle configuration information refers to the information related to the vehicle configuration. The vehicle configuration information includes but is not limited to software calibration quantities and vehicle configuration codes. The software calibration quantity is the unique code configured by the control software built in the vehicle. The vehicle configuration code (Vehicle Scheme Number, that is, VSN code) is a fixed code compiled by the vehicle manufacturer for the vehicle status of different types and configurations.

[0094] As an example, after receiving the air evacuation instruction, the temperature control controller can trigger the query of the vehicle configuration information in the system memory, extract the software calibration quantity or the vehicle configuration code from the vehicle configuration information, so as to determine the current pipeline type of the vehicle temperature control pipeline assembled on the corresponding vehicle according to the software calibration quantity or the vehicle configuration code, in order to achieve the purpose of quickly determining the current pipeline type corresponding to the vehicle temperature control pipeline.

[0095] In one embodiment, such asFigure 4 As shown, before executing the target evacuation program and controlling the target temperature control component to perform the air evacuation operation, the coolant filling method further includes:

[0096] A3031: When a thermostat valve is included in the vehicle temperature control pipeline, the current ambient temperature is collected in real time;

[0097] A3032: When the current ambient temperature is less than the opening temperature threshold corresponding to the thermostat valve, the coolant in the vehicle temperature control pipeline is heated, and the coolant temperature corresponding to the coolant in the vehicle temperature control pipeline is collected in real time;

[0098] A3033: When the coolant temperature is not less than the opening temperature threshold corresponding to the thermostat valve, control the thermostat valve to open.

[0099] Wherein, the current ambient temperature is the ambient temperature collected in real time. The coolant temperature refers to the temperature of the coolant collected in real time. The opening temperature threshold is a pre-configured temperature for opening the thermostat valve.

[0100] As an example, in the process of the temperature control controller determining the current pipeline type corresponding to the vehicle temperature control pipeline based on the air evacuation instruction, it is also necessary to determine whether the vehicle temperature control pipeline includes a thermostat valve, that is, based on the air evacuation instruction, query the vehicle configuration information in the system memory; according to the vehicle configuration information, determine the current pipeline type corresponding to the vehicle temperature control pipeline and whether it includes a thermostat valve. When the vehicle temperature control pipeline includes a thermostat valve, the temperature control controller needs to collect the current ambient temperature in real time and compare the current ambient temperature with the opening temperature threshold corresponding to the thermostat valve; if the current ambient temperature is less than the opening temperature threshold corresponding to the thermostat valve, it is determined that the current ambient temperature is low. At this time, the coolant temperature in the vehicle temperature control pipeline is very likely to be less than the opening temperature threshold corresponding to the thermostat valve, resulting in the inability to smoothly open the thermostat valve. Therefore, the temperature control controller heats the coolant in the vehicle temperature control pipeline to increase the coolant temperature. The temperature control controller can detect the coolant temperature corresponding to the coolant in the vehicle temperature control pipeline in real time. When the coolant temperature is not less than the opening temperature threshold corresponding to the thermostat valve, control the thermostat valve to open, and then execute the target evacuation program to control the target temperature control component to perform the air evacuation operation, so as to prevent the coolant in the vehicle temperature control pipeline from not flowing due to the closing of the thermostat valve in the vehicle temperature control pipeline and unable to achieve the temperature control effect.

[0101] In one embodiment, step S303, that is, based on the current pipeline type, determine the target evacuation program and the target temperature control component, execute the target evacuation program, and control the target temperature control component to perform the air evacuation operation, includes:

[0102] B3031: When the current pipeline type is an independent pipeline type, the vehicle temperature control pipeline includes a first temperature control pipeline and a second temperature control pipeline that are independently arranged. The independent evacuation procedure is determined as the target evacuation procedure, and the first temperature control water pump on the first temperature control pipeline and the second temperature control water pump on the second temperature control pipeline are determined as the target temperature control components.

[0103] B3032: Execute the independent evacuation procedure, independently control the first temperature control water pump to perform an air evacuation operation and control the second temperature control water pump to perform an air evacuation operation.

[0104] Herein, the first temperature control pipeline and the second temperature control pipeline refer to two temperature control pipelines in the vehicle temperature control pipeline. In this example, the battery temperature control pipeline and the electric drive temperature control pipeline are each other's first temperature control pipeline and second temperature control pipeline. That is, when the battery temperature control pipeline is the first temperature control pipeline, the electric drive temperature control pipeline is the second temperature control pipeline; when the electric drive temperature control pipeline is the first temperature control pipeline, the battery temperature control pipeline is the second temperature control pipeline.

[0105] As an example, when the temperature control controller determines that the current pipeline type is an independent pipeline type, it can determine that the vehicle temperature control pipeline includes a first temperature control pipeline and a second temperature control pipeline that are independently arranged. Therefore, the independent evacuation procedure is determined as the target evacuation procedure, and the first temperature control water pump on the first temperature control pipeline and the second temperature control water pump on the second temperature control pipeline are determined as the target temperature control components. Then, the temperature control controller can execute the independent evacuation procedure, independently control the first temperature control water pump to perform an air evacuation operation and control the second temperature control water pump to perform an air evacuation operation. For example, when the temperature control controller executes the independent evacuation procedure, it can first control the first temperature control water pump to perform an air evacuation operation and then control the second temperature control water pump to perform an air evacuation operation. Also for example, when the temperature control controller executes the independent evacuation procedure, it can first control the second temperature control water pump to perform an air evacuation operation and then control the first temperature control water pump to perform an air evacuation operation. Still for example, when the temperature control controller executes the independent evacuation procedure, it can simultaneously control the first temperature control water pump to perform an air evacuation operation and control the second temperature control water pump to perform an air evacuation operation.

[0106] In this embodiment, when the current pipeline type corresponding to the vehicle temperature control pipeline of the vehicle is an independent pipeline type, control the first temperature control water pump on the independently arranged first temperature control pipeline and the second temperature control water pump on the second temperature control pipeline to perform an air evacuation operation to evacuate the air in the first temperature control pipeline and the second temperature control pipeline. Use the first temperature control water pump and the second temperature control water pump provided on the vehicle to perform air evacuation, without the need to additionally configure a vacuum pumping device, which helps to save the equipment cost.

[0107] In one embodiment, step S303, that is, based on the current pipeline type, determine the target evacuation procedure and the target temperature control components, execute the target evacuation procedure, and control the target temperature control components to perform an air evacuation operation, includes:

[0108] C3031: When the current pipeline type is the coupling pipeline type, the vehicle temperature control pipeline includes a first temperature control pipeline and a second temperature control pipeline which are coupled. The first temperature control pipeline and the second temperature control pipeline are coupled through a switching valve. Determine the coupling evacuation procedure as the target evacuation procedure, and determine the switching valve, the first temperature control water pump on the first temperature control pipeline, and the second temperature control water pump on the second temperature control pipeline as the target temperature control components.

[0109] C3032: Execute the coupling evacuation procedure. When the switching valve is in the first conduction state, control the first temperature control water pump to perform an air evacuation operation, control the switching valve to switch to the second conduction state, and control the second temperature control water pump to perform an air evacuation operation.

[0110] Herein, the first temperature control pipeline and the second temperature control pipeline refer to two temperature control pipelines in the vehicle temperature control pipeline. In this example, the battery temperature control pipeline and the electric drive temperature control pipeline are the first temperature control pipeline and the second temperature control pipeline to each other. That is, when the battery temperature control pipeline is the first temperature control pipeline, the electric drive temperature control pipeline is the second temperature control pipeline; when the electric drive temperature control pipeline is the first temperature control pipeline, the battery temperature control pipeline is the second temperature control pipeline.

[0111] As an example, when the temperature control controller determines that the current pipeline type is the coupling pipeline type, it can determine that the vehicle temperature control pipeline includes a first temperature control pipeline and a second temperature control pipeline which are coupled, and the first temperature control pipeline and the second temperature control pipeline are connected through a switching valve. In this example, the switching valve can enter the first conduction state and the second conduction state under the control of the temperature control controller. Herein, the first conduction state refers to the state for controlling the first temperature control pipeline to conduct, and the second conduction state refers to the state for controlling the second temperature control pipeline to conduct. Specifically, when the temperature control controller determines that the current pipeline type is the coupling pipeline type, it can determine the coupling evacuation procedure as the target evacuation procedure, and determine the switching valve, the first temperature control water pump on the first temperature control pipeline, and the second temperature control water pump on the second temperature control pipeline as the target temperature control components. Then, when the switching valve is in the first conduction state, the temperature control controller can control the first temperature control water pump to perform an air evacuation operation. After the air evacuation operation of the first temperature control pipeline is completed, control the switching valve to switch its state so that the switching valve enters the second conduction state, and then control the second temperature control water pump to perform an air evacuation operation.

[0112] In this embodiment, when the current pipeline type corresponding to the vehicle temperature control pipeline of the vehicle is the coupling pipeline type, it is necessary to control the first temperature control water pump on the first temperature control pipeline and the second temperature control water pump on the second temperature control pipeline to perform air evacuation operations successively according to the conduction state of the switching valve between the first temperature control pipeline and the second temperature control pipeline, so as to evacuate the air in the first temperature control pipeline and the second temperature control pipeline. Using the first temperature control water pump and the second temperature control water pump provided on the vehicle to perform air evacuation, there is no need to additionally configure a vacuum pumping device, which helps to save the equipment cost.

[0113] In one embodiment, controlling the first temperature-controlled water pump to perform an air evacuation operation includes:

[0114] D3131: Based on the first sine wave signal, control the first temperature-controlled water pump to run for one rotation period and update the first operation count.

[0115] D3132: If the first operation count is greater than the target count threshold, update the current evacuation state corresponding to the first temperature-controlled pipeline to the evacuation completed state.

[0116] D3133: If the first operation count is not greater than the target count threshold, repeat the operation of controlling the first temperature-controlled water pump to run for one rotation period based on the first sine wave signal and update the first operation count.

[0117] Wherein, the first sine wave signal is a signal used to drive the first temperature-controlled water pump to work in the form of a sine wave. The rotation period is a pre-configured period for controlling the first temperature-controlled water pump to make one rotation. For example, it can be set to 5s. The target count threshold is a pre-configured count threshold for evaluating whether the air evacuation operation is completed. Understandably, the rotation time of the first temperature-controlled water pump can be controlled according to the rotation period and the target count threshold.

[0118] As an example, during the process of the temperature control controller controlling the first temperature-controlled water pump to perform the air evacuation operation, it is necessary to first form the first sine wave signal based on the target evacuation program. Based on the first sine wave signal, control the rotation speed of the first temperature-controlled water pump in the form of a sine wave, with a rotation period of 5s, and change in sequence from 0% → 100% → 0% → 100%. After the temperature control controller runs the first temperature-controlled water pump for one rotation period, it is necessary to update the first operation count, that is, increment the first operation count by 1. Then compare the updated first operation count with the target count threshold. If the first operation count is greater than the target count threshold, it is considered that the number of rotations of the first temperature-controlled water pump in the first temperature-controlled pipeline is sufficient or the time for performing the air evacuation operation is long, and it can be basically determined that the air in the first temperature-controlled pipeline has been evacuated. Therefore, update the current evacuation state corresponding to the first temperature-controlled pipeline to the evacuation completed state. If the first operation count is not greater than the target count threshold, repeat the operation of controlling the first temperature-controlled water pump to run for one rotation period based on the first sine wave signal and update the first operation count.

[0119] In one embodiment, controlling the second temperature-controlled water pump to perform an air evacuation operation includes:

[0120] D3231: Based on the second sine wave signal, control the second temperature-controlled water pump to run for one rotation period and update the second operation count.

[0121] D3232: If the second number of runs is greater than the target number threshold, update the current evacuation state corresponding to the second temperature control pipeline to the evacuation completed state.

[0122] D3233: If the second number of runs is not greater than the target number threshold, repeatedly execute controlling the second temperature control water pump to run for one rotation period based on the second sine wave signal, and update the second number of runs.

[0123] Among them, the second sine wave signal is a signal used to drive the second temperature control water pump to work in the form of a sine wave. The rotation period is a pre-configured period for controlling the second temperature control water pump to make one rotation. For example, it can be set to 5s. The target number threshold is a pre-configured number threshold for evaluating whether the air evacuation operation is completed. Understandably, the rotation time of the second temperature control water pump can be controlled according to the rotation period and the target number threshold.

[0124] As an example, during the process of the temperature control controller controlling the second temperature control water pump to perform the air evacuation operation, it is necessary to first form the second sine wave signal based on the target evacuation program, and based on the second sine wave signal, control the rotation speed of the second temperature control water pump in the form of a sine wave, with a rotation period of 5s, and change sequentially from 0% → 100% → 0% → 100%. After the temperature control controller runs the second temperature control water pump for one rotation period, it is necessary to update the second number of runs, that is, add 1 to the second number of runs. Then compare the updated second number of runs with the target number threshold. If the second number of runs is greater than the target number threshold, it is considered that the number of rotations of the second temperature control water pump in the second temperature control pipeline is sufficient or the time for performing the air evacuation operation is long, and it can be basically determined that the air in the second temperature control pipeline has been evacuated. Therefore, update the current evacuation state corresponding to the second temperature control pipeline to the evacuation completed state. If the second number of runs is not greater than the target number threshold, repeatedly execute controlling the second temperature control water pump to run for one rotation period based on the second sine wave signal, and update the second number of runs.

[0125] In one embodiment, controlling the first temperature control water pump to perform the air evacuation operation includes:

[0126] E3131: Control the first temperature control water pump to run for one rotation period based on the first sine wave signal;

[0127] E3132: Real-time collect the first current liquid level corresponding to the coolant in the coolant expansion tank connected to the first temperature control water pump;

[0128] E3133: Obtain the first liquid level difference based on the first current liquid level and the first historical liquid level collected in the previous rotation period;

[0129] E3134: If the first liquid level difference is less than or equal to the target liquid level threshold, update the current evacuation state corresponding to the first temperature control pipeline to the evacuation completed state;

[0130] E3135: If the first liquid level difference is greater than the target liquid level threshold, repeat the operation of controlling the first temperature control water pump to run for one rotation cycle based on the first sine wave signal.

[0131] Wherein, the first current liquid level refers to the liquid level of the coolant in the coolant expansion tank when the first temperature control water pump has completed the current rotation cycle. The first historical liquid level refers to the liquid level of the coolant in the coolant expansion tank when the first temperature control water pump has completed the previous rotation cycle. The first liquid level difference refers to the difference between the first current liquid level and the first historical liquid level. The target liquid level threshold refers to the pre-configured liquid level threshold for evaluating whether the air evacuation operation is completed.

[0132] As an example, during the process of the temperature control controller controlling the first temperature control water pump to perform the air evacuation operation, it is necessary to first form the first sine wave signal based on the target evacuation program, and based on the first sine wave signal, control the rotation speed of the first temperature control water pump in the form of a sine wave, with a rotation cycle of 5s, changing from 0% → 100% → 0% → 100% in sequence. After the temperature control controller operates the first temperature control water pump for one rotation cycle, it is necessary to collect the first current liquid level in the coolant expansion tank connected to the first temperature control pipeline in real time; then calculate the difference between the first current liquid level and the first historical liquid level corresponding to the previous rotation cycle stored in the system memory to obtain the first liquid level difference; then compare the first liquid level difference with the target liquid level threshold; if the first liquid level difference is less than or equal to the target liquid level threshold, it is determined that the air in the first temperature control pipeline has been evacuated, and update the current evacuation status corresponding to the first temperature control pipeline to the evacuation completed status; if the first liquid level difference is greater than the target liquid level threshold, repeat the operation of controlling the second temperature control water pump to run for one rotation cycle based on the second sine wave signal.

[0133] In one embodiment, controlling the second temperature control water pump to perform the air evacuation operation includes:

[0134] E3231: Based on the second sine wave signal, control the second temperature control water pump to run for one rotation cycle;

[0135] E3232: Collect the second current liquid level corresponding to the coolant in the coolant expansion tank connected to the second temperature control water pump in real time;

[0136] E3233: Obtain the second liquid level difference based on the second current liquid level and the second historical liquid level collected in the previous rotation cycle;

[0137] E3234: If the second liquid level difference is less than or equal to the target liquid level threshold, update the current evacuation status corresponding to the second temperature control pipeline to the evacuation completed status;

[0138] E3235: If the second liquid level difference is greater than the target liquid level threshold, then repeatedly execute controlling the second temperature control water pump to operate for one rotation period based on the second sine wave signal.

[0139] Among them, the second sine wave signal is a signal used to drive the second temperature control water pump to work in the form of a sine wave. The rotation period is a pre-configured period for controlling the second temperature control water pump to make one rotation. For example, it can be set to 5s. The second current liquid level refers to the liquid level of the coolant in the coolant expansion tank when the second temperature control water pump has completed the current rotation period. The second historical liquid level refers to the liquid level of the coolant in the coolant expansion tank when the second temperature control water pump has completed the previous rotation period. The second liquid level difference refers to the difference between the second current liquid level and the second historical liquid level. The target liquid level threshold is a liquid level threshold pre-configured for evaluating whether the air evacuation operation is completed.

[0140] As an example, during the process of the temperature control controller controlling the second temperature control water pump to perform the air evacuation operation, it is necessary to first form the second sine wave signal based on the target evacuation program, and based on the second sine wave signal, control the rotation speed of the second temperature control water pump in the form of a sine wave, with a rotation period of 5s, and change sequentially from 0% → 100% → 0% → 100%. After the temperature control controller operates the second temperature control water pump for one rotation period, it is necessary to collect the second current liquid level in the coolant expansion tank connected to the second temperature control pipeline in real time; then calculate the difference between the second current liquid level and the second historical liquid level corresponding to the previous rotation period stored in the system memory to obtain the second liquid level difference; then compare the second liquid level difference with the target liquid level threshold; if the second liquid level difference is less than or equal to the target liquid level threshold, it is determined that the air in the second temperature control pipeline has been evacuated, and update the current evacuation state corresponding to the second temperature control pipeline to the evacuation completed state; if the second liquid level difference is greater than the target liquid level threshold, then repeatedly execute controlling the second temperature control water pump to operate for one rotation period based on the second sine wave signal.

[0141] In one embodiment, step S304: Monitor the current evacuation state corresponding to the vehicle temperature control pipeline, form an execution result message based on the current evacuation state, and send the execution result message to the diagnostic device, including:

[0142] S3041: Receive the result query instruction sent at intervals by the diagnostic device within the target execution period;

[0143] S3042: Based on the result query instruction, monitor the current evacuation state corresponding to the vehicle temperature control pipeline;

[0144] S2043: Based on the current evacuation state corresponding to the vehicle temperature control pipeline, obtain the execution result message corresponding to the result query instruction, and send the execution result message to the diagnostic device.

[0145] Among them, the target execution period is a pre-configured period for performing the air evacuation operation. For example, the target execution period is 1h. The result query instruction refers to an instruction triggered by the diagnostic device for querying the result of the air evacuation operation.

[0146] As an example, the temperature control controller can also receive at least one result query instruction sent by the diagnostic device at intervals within the target execution period. In this example, the temperature control controller can receive the result query instructions formed at intervals by the diagnostic device within the target execution period after triggering the air evacuation instruction. For example, a result query instruction is formed every 2s. After receiving each result query instruction at intervals, it is necessary to query the current evacuation status corresponding to the vehicle temperature control pipeline recorded in the system memory based on the result query instruction. In this example, since the vehicle temperature control pipeline includes the first temperature control pipeline and the second temperature control pipeline, the current evacuation status corresponding to the vehicle temperature control pipeline includes the current evacuation status corresponding to the first temperature control pipeline and the current evacuation status corresponding to the second temperature control pipeline.

[0147] As an example, after the temperature control controller obtains the current evacuation status corresponding to the vehicle temperature control pipeline, it is necessary to determine the corresponding execution result message based on the current evacuation status corresponding to the vehicle temperature control pipeline. In this example, the vehicle temperature control pipeline can determine the corresponding execution result message according to the current evacuation status corresponding to the first temperature control pipeline and the current evacuation status corresponding to the second temperature control pipeline. For example, if the current evacuation status corresponding to the first temperature control pipeline and the current evacuation status corresponding to the second temperature control pipeline are both in the evacuation completed state, an execution success message is formed and sent to the diagnostic device as the execution result message. Another example is that if at least one of the current evacuation status corresponding to the first temperature control pipeline and the current evacuation status corresponding to the second temperature control pipeline is in the evacuation execution state, an execution busy message is formed and sent to the diagnostic device as the execution result message.

[0148] In one embodiment, as Figure 4 shown, a coolant filling method is provided. Taking the method applied to a diagnostic device connected to a liquid-cooled temperature control system as an example, the coolant filling method includes:

[0149] S401: During the process of filling the coolant into the vehicle temperature control pipeline, generate an air evacuation instruction and send the air evacuation instruction to the liquid-cooled temperature control system, so that the liquid-cooled temperature control system determines the current pipeline type, target evacuation program, and target temperature control component corresponding to the vehicle temperature control pipeline based on the air evacuation instruction, executes the target evacuation program, and controls the target temperature control component to perform the air evacuation operation;

[0150] S402: Receive the execution result message formed by the liquid-cooled temperature control system based on monitoring the current evacuation status of the vehicle temperature control pipeline, obtain the program execution result based on the execution result message, and control the display interface to display the program execution result.

[0151] As an example, the diagnostic device is connected to the liquid-cooled temperature control system, specifically to the temperature control controller of the liquid-cooled temperature control system. During the process of filling the vehicle temperature control pipeline with coolant, it can generate an air evacuation instruction and send the air evacuation instruction to the liquid-cooled temperature control system, so that the liquid-cooled temperature control system can determine its current pipeline type, target evacuation program, and target temperature control component, execute the target evacuation program to control the target temperature control component to perform the air evacuation operation, realizing the air evacuation operation using the target temperature control component configured in the vehicle itself, ensuring that when filling the coolant, the air in the vehicle temperature control pipeline can be evacuated, making the vehicle temperature control pipeline filled with coolant, and no additional vacuum pumping equipment is required during the coolant filling process, which is beneficial to saving equipment costs, reducing software development costs and software applicability, and there is no need to independently develop corresponding target evacuation programs for each pipeline type of the vehicle temperature control pipeline. In this example, during the process of filling the vehicle temperature control pipeline with coolant, a special coolant filling device can be used to fill the coolant expansion tank connected to the vehicle temperature control pipeline, or it can be manually operated by an operator.

[0152] As an example, the diagnostic device can receive the execution result message formed by the liquid-cooled temperature control system based on monitoring the current evacuation state of the vehicle temperature control pipeline. The execution result message includes an execution success message and an execution busy message. In this example, when the temperature control controller in the liquid-cooled temperature control system monitors that the current evacuation state corresponding to the vehicle temperature control pipeline is the evacuation completed state, it determines the execution success message as the execution result message; if the current evacuation state corresponding to the vehicle temperature control pipeline is the evacuation execution state, it determines the execution busy message as the execution result message. Then, the diagnostic device can obtain the program execution result based on the received execution result message. The program execution result includes two types: program execution success and program execution failure. For example, when the received execution result message contains an execution success message, the program execution result is determined as program execution success; when all the received execution result messages are execution busy messages, that is, there is no execution success message, the program execution result is determined as program execution failure.

[0153] In the coolant filling method provided in this embodiment, the diagnostic device can send an air evacuation instruction to the liquid-cooled temperature control system, enabling the liquid-cooled temperature control system to determine its current pipeline type, target evacuation program, and target temperature control component, execute the target evacuation program to control the target temperature control component to perform the air evacuation operation, realizing the air evacuation operation using the target temperature control component configured in the vehicle itself, without the need to additionally use a vacuum pumping device for vacuum injection, which is beneficial to saving equipment costs; according to the different current pipeline types, different target evacuation programs and target temperature control components are determined, which can control the vehicle temperature control pipelines corresponding to different current pipeline types, reduce software development costs and software applicability, and there is no need to independently develop corresponding target evacuation programs for the vehicle temperature control pipelines corresponding to each pipeline type. The diagnostic device can receive the execution result message formed by the temperature control controller based on the monitored current evacuation state of the vehicle temperature control pipeline, so as to detect whether the target evacuation program built in the liquid-cooled temperature control system is executed successfully, realize program diagnosis, and ensure the normal operation of the liquid-cooled temperature control system.

[0154] In one embodiment, step S402, that is, receiving the execution result message formed by the liquid-cooled temperature control system based on monitoring the current evacuation state of the vehicle temperature control pipeline, and based on the execution result message, obtaining the program execution result and controlling the display interface to display the program execution result, includes:

[0155] S4021: Form result query instructions at intervals within the target execution period, and send the result query instructions to the liquid-cooled temperature control system;

[0156] S4022: Receive the execution result message fed back by the liquid-cooled temperature control system within the target execution period;

[0157] S4023: Based on all the execution result messages received within the target execution period, obtain the program execution result and control the display interface to display the program execution result.

[0158] Among them, the target execution period is a pre-configured period for performing the air evacuation operation. For example, the target execution period is 1h. The result query instruction refers to an instruction triggered by the diagnostic device for querying the result of the air evacuation operation.

[0159] As an example, within the target execution period after the diagnostic device sends the air evacuation instruction, result query instructions are formed at intervals. For example, a result query instruction is formed every 2s, and the result query instructions are sent to the liquid-cooled temperature control system to enable the liquid-cooled temperature control system to perform a status query operation and obtain the execution result message corresponding to each result query instruction.

[0160] As an example, the diagnostic device may receive the execution result message fed back by the liquid cooling temperature control system within the target execution cycle. Since the result query instructions are formed and sent to the liquid cooling temperature control system at intervals, the diagnostic device may also receive the execution result message fed back by the liquid cooling temperature control system at intervals.

[0161] As an example, the diagnostic device may obtain the program execution result based on all the execution result messages received within the target execution cycle, control the display interface to display the program execution result, and the program execution result is used to reflect whether the coolant filling program in the liquid cooling temperature control system is successfully executed. The coolant filling program is a program for controlling the execution of the coolant filling method. In this example, among all the execution result messages received by the diagnostic device within the target execution cycle, if any execution result message is an execution success message, the obtained program execution result is that the program is successfully executed, and "Program execution successful" is displayed on the display interface. If all the execution result messages are execution busy messages, the obtained program execution result is that the program execution fails, and "Program execution failed" is displayed on the display interface.

[0162] In one embodiment, a liquid cooling temperature control system is provided. The liquid cooling temperature control system includes a temperature control controller, a vehicle temperature control pipeline, and vehicle temperature control components; the vehicle temperature control components are arranged on the vehicle temperature control pipeline, and the vehicle temperature control components are connected to the temperature control controller. The temperature control controller includes a memory, a processor, and a coolant filling program stored in the memory and executable on the processor. When the processor executes the coolant filling program, the coolant filling method in the above embodiment is implemented, as Figure 3 shown. To avoid repetition, it will not be elaborated here.

[0163] In one embodiment, a diagnostic device is provided, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the coolant filling program, the coolant filling method in the above embodiment is implemented, as Figure 4 shown. To avoid repetition, it will not be elaborated here.

[0164] The above-described embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A coolant filling method, characterized in that, Including the following steps performed by the liquid cooling temperature control system: During the process of filling the coolant into the vehicle temperature control pipeline, receive the air evacuation instruction sent by the diagnostic device; Based on the air evacuation instruction, determine the current pipeline type corresponding to the vehicle temperature control pipeline; based on the current pipeline type, determine the target evacuation procedure and the target temperature control component, execute the target evacuation procedure, and control the target temperature control component to perform the air evacuation operation; Monitor the current evacuation state corresponding to the vehicle temperature control pipeline, form an execution result message based on the current evacuation state, and send the execution result message to the diagnostic device; And, the determining the target evacuation procedure and the target temperature control component based on the current pipeline type, executing the target evacuation procedure, and controlling the target temperature control component to perform the air evacuation operation includes: When the current pipeline type is an independent pipeline type, the vehicle temperature control pipeline includes an independently arranged first temperature control pipeline and a second temperature control pipeline. Determine the independent evacuation procedure as the target evacuation procedure, and determine the first temperature control water pump on the first temperature control pipeline and the second temperature control water pump on the second temperature control pipeline as the target temperature control components; Execute the independent evacuation procedure, and independently control the first temperature control water pump to perform the air evacuation operation and control the second temperature control water pump to perform the air evacuation operation.

2. The coolant filling method according to claim 1, characterized in that Before executing the target evacuation procedure and controlling the target temperature control component to perform the air evacuation operation, the coolant filling method further includes: When the vehicle temperature control pipeline includes a thermostat, real-time collect the current ambient temperature; When the current ambient temperature is less than the opening temperature threshold corresponding to the thermostat, heat the coolant in the vehicle temperature control pipeline, and real-time collect the coolant temperature corresponding to the coolant in the vehicle temperature control pipeline; When the coolant temperature is not less than the opening temperature threshold corresponding to the thermostat, control the thermostat to open.

3. The coolant filling method according to claim 1, characterized in that The determining the target evacuation procedure and the target temperature control component based on the current pipeline type, executing the target evacuation procedure, and controlling the target temperature control component to perform the air evacuation operation includes: When the current pipeline type is a coupled pipeline type, the vehicle temperature control pipeline includes a first temperature control pipeline and a second temperature control pipeline arranged in a coupled manner. The first temperature control pipeline and the second temperature control pipeline are coupled through a switching valve. Determine the coupled evacuation procedure as the target evacuation procedure, and determine the switching valve, the first temperature control water pump on the first temperature control pipeline, and the second temperature control water pump on the second temperature control pipeline as the target temperature control components; Execute the coupled evacuation procedure. When the switching valve is in the first conduction state, control the first temperature control water pump to perform the air evacuation operation, control the switching valve to switch to the second conduction state, and control the second temperature control water pump to perform the air evacuation operation.

4. The coolant filling method according to claim 1 or 3, characterized in that, The controlling the first temperature control water pump to perform the air evacuation operation includes: Based on the first sine wave signal, control the first temperature control water pump to operate for one rotation cycle, and update the first operation times; If the first operation times are greater than the target times threshold, update the current evacuation state corresponding to the first temperature control pipeline to the evacuation completed state; If the first number of runs is not greater than the target number threshold, repeat the step of controlling the first temperature control water pump to operate for one rotation period based on the first sine wave signal, and update the first number of runs; The step of controlling the second temperature control water pump to perform an air evacuation operation includes: Based on the second sine wave signal, control the second temperature control water pump to operate for one rotation period, and update the second number of runs; if the second number of runs is greater than the target number threshold, update the current evacuation state corresponding to the second temperature control pipeline to the evacuation completion state; If the second number of runs is not greater than the target number threshold, repeat the step of controlling the second temperature control water pump to operate for one rotation period based on the second sine wave signal, and update the second number of runs.

5. The coolant filling method according to claim 1 or 3, characterized in that, The step of controlling the first temperature control water pump to perform an air evacuation operation includes: Based on the first sine wave signal, control the first temperature control water pump to operate for one rotation period; and real-time collect the first current liquid level corresponding to the coolant in the coolant expansion tank connected to the first temperature control water pump; Based on the first current liquid level and the first historical liquid level collected in the previous rotation period, obtain a first liquid level difference; If the first liquid level difference is less than or equal to the target liquid level threshold, update the current evacuation state corresponding to the first temperature control pipeline to the evacuation completion state; If the first liquid level difference is greater than the target liquid level threshold, repeat the step of controlling the first temperature control water pump to operate for one rotation period based on the first sine wave signal; The step of controlling the second temperature control water pump to perform an air evacuation operation includes: Based on the second sine wave signal, control the second temperature control water pump to operate for one rotation period; Real-time collect the second current liquid level corresponding to the coolant in the coolant expansion tank connected to the second temperature control water pump; Based on the second current liquid level and the second historical liquid level collected in the previous rotation period, obtain a second liquid level difference; if the second liquid level difference is less than or equal to the target liquid level threshold, update the current evacuation state corresponding to the second temperature control pipeline to the evacuation completion state; If the second liquid level difference is greater than the target liquid level threshold, repeat the step of controlling the second temperature control water pump to operate for one rotation period based on the second sine wave signal.

6. The coolant filling method according to claim 1, wherein Monitoring the current evacuation state corresponding to the vehicle temperature control pipeline, forming an execution result message based on the current evacuation state, and sending the execution result message to the diagnostic device includes: Receiving the result query instruction sent at intervals by the diagnostic device within the target execution period; Based on the result query instruction, monitoring the current evacuation state corresponding to the vehicle temperature control pipeline; Based on the current evacuation state corresponding to the vehicle temperature control pipeline, obtaining an execution result message corresponding to the result query instruction, and sending the execution result message to the diagnostic device.

7. A liquid cooling temperature control system, the liquid cooling temperature control system comprising a temperature control controller, a vehicle temperature control pipeline, and a vehicle temperature control component; the vehicle temperature control component is disposed on the vehicle temperature control pipeline, and the vehicle temperature control component is connected to the temperature control controller, the temperature control controller includes a memory, a processor, and a coolant filling program stored in the memory and executable on the processor, characterized in that, When the processor executes the coolant filling program, it implements the coolant filling method according to any one of claims 1 to 6.

8. A coolant filling method, characterized in that It includes the following steps executed by the diagnostic device: During the process of filling the coolant into the vehicle temperature control pipeline, an air evacuation instruction is generated, and the air evacuation instruction is sent to the liquid-cooled temperature control system, so that the liquid-cooled temperature control system determines the current pipeline type, target evacuation procedure and target temperature control component corresponding to the vehicle temperature control pipeline based on the air evacuation instruction, executes the target evacuation procedure, and controls the target temperature control component to perform an air evacuation operation; Receive the execution result message formed by the liquid-cooled temperature control system based on monitoring the current evacuation state of the vehicle temperature control pipeline, obtain the program execution result based on the execution result message, and control the display interface to display the program execution result; And, the determining the current pipeline type, target evacuation procedure and target temperature control component corresponding to the vehicle temperature control pipeline, executing the target evacuation procedure, and controlling the target temperature control component to perform an air evacuation operation includes: When the current pipeline type is an independent pipeline type, the vehicle temperature control pipeline includes a first temperature control pipeline and a second temperature control pipeline that are independently arranged, determine the independent evacuation procedure as the target evacuation procedure, and determine the first temperature control water pump on the first temperature control pipeline and the second temperature control water pump on the second temperature control pipeline as the target temperature control components; Execute the independent evacuation procedure, and independently control the first temperature control water pump to perform an air evacuation operation and control the second temperature control water pump to perform an air evacuation operation.

9. The coolant filling method according to claim 8, wherein, The receiving the execution result message formed by the liquid-cooled temperature control system based on monitoring the current evacuation state of the vehicle temperature control pipeline, obtaining the program execution result based on the execution result message, and controlling the display interface to display the program execution result includes: Form result query instructions at intervals within the target execution cycle, and send the result query instructions to the liquid-cooled temperature control system; Receive the execution result message fed back by the liquid-cooled temperature control system within the target execution cycle; Based on all the execution result messages received within the target execution cycle, obtain the program execution result, and control the display interface to display the program execution result.

10. A diagnostic device, the diagnostic device includes a memory, a processor, and a coolant filling program stored in the memory and executable on the processor, characterized in that, When the processor executes the coolant filling program, it implements the coolant filling method according to any one of claims 8 to 9.

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