Vehicle cooling liquid circulating filling control method, device and equipment

Abstract

The invention provides a vehicle cooling liquid circulating filling control method, device and equipment, and relates to the technical field of cooling liquid filling. The method comprises the steps that the height of cooling liquid in the expansion kettle is obtained in response to selection operation of a user; and if the height of the cooling liquid is larger than or equal to the first preset height, the cooling liquid pump is controlled to conduct cooling liquid circulating filling, and when the filling stopping condition determined based on the filling duration and / or the driving mileage is met, the cooling liquid pump is controlled to stop cooling liquid circulating filling. The method is used for reducing the dependence of the cooling liquid on manual operation in the circulating filling process, and the filling efficiency of the cooling liquid is improved.

Description

Technical Field

[0001] The present application relates to the technical field of coolant filling, and in particular to a method, device and equipment for controlling the circulation filling of coolant in a vehicle. Background Art

[0002] As a core subsystem of modern vehicles, especially electric vehicles, the thermal management system actively controls the temperature of the battery pack and power electronics through coolant circulation, ensuring continuous operation within the optimal operating temperature range. During the coolant refill process, a circulating refill method can be used to remove air from the system, ensuring sufficient coolant and preventing thermal management system failure due to insufficient coolant.

[0003] In the related art, the cooling liquid circulation filling process usually involves multiple manual operation steps, and the execution of each step depends on the operator's experience. However, in the above method, the manual operation of cooling liquid filling leads to low cooling liquid filling efficiency. Summary of the Invention

[0004] The present application provides a vehicle coolant circulation filling control method, device and equipment to improve the coolant filling efficiency.

[0005] In a first aspect, the present application provides a vehicle coolant circulation filling control method, comprising:

[0006] In response to a selection operation by the user, obtaining the coolant height in the expansion kettle;

[0007] If the coolant height is greater than or equal to a first preset height, controlling the coolant pump to circulate and refill the coolant;

[0008] When a filling stop condition is met, the coolant pump is controlled to stop circulating the coolant; the filling stop condition is determined based on the filling duration and / or the mileage.

[0009] In a possible implementation, the refueling stop condition is that the refueling duration reaches a target duration, and the method further includes:

[0010] If the coolant level is lower than the first preset level during the coolant circulation filling process, pausing the coolant circulation filling and determining a first filling time;

[0011] When the coolant level returns to a second preset level, the coolant circulation filling is resumed, and the filling time is further increased based on the first filling time to obtain a second filling time; the first preset level is less than the second preset level;

[0012] Accordingly, when the filling stop condition is met, controlling the coolant pump to stop circulating the coolant includes:

[0013] When the second filling time reaches the target time, the coolant pump is controlled to stop circulating and filling the coolant.

[0014] In a possible implementation manner, the refueling stop condition is that the driving mileage reaches a target mileage, and the method further includes:

[0015] If the coolant level is less than the first preset level during the coolant circulation filling process, pausing the coolant circulation filling and determining the first mileage;

[0016] When the coolant level returns to a second preset level, the coolant circulation filling is resumed, and the mileage is further increased on the basis of the first mileage to obtain a second mileage; the first preset level is less than the second preset level;

[0017] Accordingly, when the filling stop condition is met, controlling the coolant pump to stop circulating the coolant includes:

[0018] When the second driving mileage reaches the target mileage, the coolant pump is controlled to stop circulating and filling the coolant.

[0019] In one possible implementation, the method further includes:

[0020] During the process of circulating and filling the coolant, a filling event is generated and sent to the cloud server so that the cloud server can perform filling acceptance; the filling event includes the filling duration.

[0021] In one possible implementation, the method further includes:

[0022] During the process of circulating and filling the coolant, a filling event is generated and sent to the cloud server so that the cloud server can perform filling acceptance; the filling event includes mileage.

[0023] In one possible implementation, the method further includes:

[0024] In response to the user's selection operation, a refueling notification event is generated and sent to the cloud server. The refueling notification event includes a vehicle identification code and a refueling start type, where the refueling start type is automatic start or manual start.

[0025] In one possible implementation, the method further includes:

[0026] The filling information is sent to the human-computer interaction interface of the vehicle and displayed through the human-computer interaction interface; the filling information includes the filling start type and filling progress information, and the filling progress information can be the filling time or mileage.

[0027] In one possible implementation, the method further includes:

[0028] When the vehicle is powered off normally, storing the refueling time or the mileage;

[0029] When the vehicle is powered on again, the accumulation continues based on the refueling time or the mileage.

[0030] In a second aspect, the present application provides a vehicle coolant circulation filling control device, comprising:

[0031] an acquisition module, configured to acquire the coolant height in the expansion kettle in response to a selection operation by a user;

[0032] A first processing module is configured to control a coolant pump to circulate and refill the coolant if the coolant height is greater than or equal to a first preset height;

[0033] The second processing module is used to control the coolant pump to stop circulating and filling the coolant when a stop filling condition is met; the stop filling condition is determined based on the filling time and / or mileage.

[0034] In a third aspect, the present application provides a vehicle controller, comprising: a memory, a processor;

[0035] The memory stores computer-executable instructions;

[0036] The processor executes the computer-executable instructions stored in the memory, so that the processor executes the above first aspect and / or various possible implementations of the first aspect.

[0037] In a fourth aspect, the present application provides a vehicle comprising the vehicle controller as described in the third aspect.

[0038] In a fifth aspect, the present application provides a computer-readable storage medium, which stores computer-executable instructions. When the computer-executable instructions are executed by a processor, they are used to implement the first aspect and / or various possible implementation methods of the first aspect as described above.

[0039] In a sixth aspect, the present application provides a computer program product, comprising a computer program, which, when executed by a processor, implements the above first aspect and / or various possible implementations of the first aspect.

[0040] The vehicle coolant circulation filling control method, device and equipment provided in the present application obtain the coolant height in the expansion kettle in response to the user's selection operation. If the coolant height is greater than or equal to a first preset height, the coolant pump is controlled to perform coolant circulation filling. When the stop filling condition is met, the coolant pump is controlled to stop the coolant circulation filling. The stop filling condition is determined based on the filling time and / or mileage. In the above process, by setting the stop filling condition based on the filling time and / or mileage, the coolant's dependence on manual operation during the circulation filling process can be reduced, thereby improving the coolant filling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0042] Figure 1 A schematic diagram of an application scenario provided in an embodiment of the present application;

[0043] Figure 2 A schematic flow chart of a first embodiment of a vehicle coolant circulation filling control method provided in this application;

[0044] Figure 3 A schematic flow chart of a second embodiment of a vehicle coolant circulation filling control method provided in this application;

[0045] Figure 4 A schematic flow chart of a third embodiment of the vehicle coolant circulation filling control method provided in this application;

[0046] Figure 5 A flow chart of a fourth embodiment of the vehicle coolant circulation filling control method provided in this application;

[0047] Figure 6 A flow chart of a fifth embodiment of the vehicle coolant circulation filling control method provided in this application;

[0048] Figure 7 A schematic diagram of the vehicle coolant circulation and filling control principle provided in an embodiment of the present application;

[0049] Figure 8 This is a structural diagram of a first embodiment of a vehicle coolant circulation and filling control device provided by the present application;

[0050] Figure 9 This is a schematic structural diagram of a second embodiment of a vehicle coolant circulation and filling control device provided by this application;

[0051] Figure 10 A schematic diagram of the structure of the vehicle controller provided in an embodiment of the present application.

[0052] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0053] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0054] Figure 1 This is a schematic diagram of the application scenario provided by the embodiment of this application. Figure 1 The vehicle 100 may be equipped with a vehicle controller 101, an expansion tank 102, a coolant pump 103, and a thermal management system 104. When the vehicle 100 requires coolant refilling, the vehicle controller 101 controls the coolant pump 102 to start operating, pushing the coolant in the expansion tank 102 to circulate throughout the thermal management system 104 circuit, completing the coolant refilling cycle. The vehicle 100 can be driven by a selectable mode, either pure electric or hybrid.

[0055] In related technologies, the coolant refill process typically involves a complex and interrelated series of manual steps. These steps, such as starting and stopping the refill process and timing the refill duration, are highly dependent on the operator's experience, proficiency, and understanding of the specific vehicle's thermal management system. Due to the complexity of these steps and reliance on manual judgment, manual refilling often results in inefficient refilling.

[0056] In response to the above problems, the inventors considered that the coolant circulation filling process could be optimized by introducing automated control to improve the filling efficiency. Based on this, after many experiments, the inventors found that the vehicle controller can respond to the user's selection operation to obtain the coolant height in the expansion kettle. When the coolant height is greater than or equal to the preset height, the coolant pump is controlled to circulate the coolant; when the stop filling condition is met, the coolant pump is controlled to stop the coolant circulation filling. The stop filling condition can be determined based on the filling time and / or mileage, thereby reducing the complexity of the operation and dependence on manual judgment, and optimizing the filling process. Based on this, the present application proposes a vehicle coolant circulation filling control method, which aims to improve the efficiency of coolant filling through automated means.

[0057] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0058] Figure 2 This is a flow chart of the first embodiment of the vehicle coolant circulation filling control method provided by this application. Figure 2 , the method may include:

[0059] S201 : In response to a selection operation by a user, obtain the coolant height in the expansion kettle.

[0060] The execution entity of the embodiments of the present application may be a vehicle controller, or a vehicle coolant circulation and filling control device provided within the vehicle controller. The vehicle coolant circulation and filling control device may be implemented via software or a combination of software and hardware. The vehicle coolant circulation and filling control device may be a processor within the vehicle controller. For ease of understanding, the technical solution of the present application will be described below using the vehicle controller as an example.

[0061] In this step, the vehicle control unit (VCU) can respond to the user's selection operation and communicate with the liquid level sensor installed in the expansion tank to monitor and obtain the coolant height in real time.

[0062] Among them, the liquid level sensor used to monitor the coolant height in the expansion tank can be of different types, including float type, ultrasonic or capacitive sensor.

[0063] Optionally, in different vehicle usage scenarios, the VCU can select different operations to trigger the coolant level monitoring and filling process based on specific needs. When the coolant is circulated and filled before the vehicle leaves the factory, the selected operation can be to put the vehicle in the ON gear and power on the vehicle. This operation can automatically trigger the VCU to monitor and manage the coolant level. During the after-sales maintenance process, when coolant circulation and refilling are required, the selected operation can be to select a dedicated coolant circulation filling button in the vehicle's human-computer interaction interface. This operation can instruct the VCU to start the corresponding monitoring and filling procedures.

[0064] For example, when the vehicle is circulated and filled with coolant before leaving the factory, the VCU obtains the coolant height H0 in the expansion tank in response to the user placing the vehicle in the ON gear.

[0065] S202: If the coolant height is greater than or equal to a first preset height, control the coolant pump to circulate and refill the coolant.

[0066] In this step, the vehicle controller may send an opening instruction to the coolant pump according to the obtained coolant height being greater than or equal to the first preset height, and after the coolant pump is turned on, the coolant is circulated and filled.

[0067] A coolant pump, commonly referred to as a water pump, is responsible for circulating coolant between key components such as the electric motor and battery pack and the radiator in a thermal management system. Maintaining this circulation effectively removes heat from key components, preventing overheating and ensuring they operate within their optimal temperature range.

[0068] The first preset height may refer to the minimum safe coolant level. When the coolant level falls below the first preset height, an alarm or indicator light may be triggered, reminding the user to add coolant to prevent overheating of critical components. For example, the first preset height may be HA.

[0069] For example, the VCU may control the coolant pump to circulate and refill the coolant based on the obtained coolant height H0 being greater than the first preset height HA.

[0070] S203. When a filling stop condition is met, control the coolant pump to stop circulating the coolant; the filling stop condition is determined based on the filling duration and / or mileage.

[0071] In this step, when the coolant circulation filling meets the stop filling conditions determined based on the filling time or mileage, the vehicle controller can send a stop filling instruction to the coolant pump to control the coolant pump to stop the coolant circulation filling.

[0072] The refueling stop condition can be when the refueling time reaches a target time or when the mileage reaches a target. The target time and mileage can be preset based on the vehicle thermal management system and / or user needs. For example, the target time could be 5 hours (h) and the target mileage could be 100 kilometers (km).

[0073] For example, when the coolant circulation filling time reaches 5 hours, the VCU can send a stop filling instruction to the coolant pump to control the coolant pump to stop the coolant circulation filling.

[0074] In an alternative embodiment, the refill stop condition can also be determined based on the refill duration and mileage. During the coolant refill cycle, the vehicle controller can simultaneously monitor the refill duration and mileage. If either variable reaches a target value first, the refill cycle will be stopped.

[0075] It's important to note that during vehicle production (i.e., before the vehicle leaves the factory), the thermal management system must be completely filled with coolant to ensure proper operation. This pre-factory refilling ensures that there is no air or other issues within the thermal management system that could affect its performance. Furthermore, during vehicle use, coolant levels may decrease due to evaporation, leakage, or other factors. Therefore, during after-sales service, the coolant can be replenished or completely replaced, performing the necessary refilling. During normal vehicle operation, coolant circulation is actively driven by components such as the coolant pump to ensure that critical components (such as the electric motor and battery pack) remain within a safe and efficient operating temperature range. This normal cycle requires no continuous refilling. Continuous refilling can lead to abnormal pressure increases within the thermal management system, increasing the risk of seal failure and leakage, and can also unnecessarily increase vehicle energy consumption.

[0076] In an embodiment of the present application, the vehicle controller can obtain the coolant height in the expansion kettle in response to a user's selection operation. If the coolant height is greater than or equal to a first preset height, the coolant pump can be started to circulate and fill the coolant. When the stop filling condition determined based on the filling time and / or mileage is met, the coolant pump can be controlled to stop the circulated filling. In the above process, by setting the stop filling condition based on the filling time and / or mileage, the coolant's dependence on manual operation during the circulated filling process can be reduced, and there is no need to wait for manual confirmation or operation, thereby improving the coolant filling efficiency.

[0077] Furthermore, the vehicle coolant circulation filling control method provided in the embodiment of the present application can complete the filling process more quickly and accurately by monitoring the coolant level and automatically starting / stopping the coolant pump, significantly reducing the risk of human error.

[0078] exist Figure 2 Based on the embodiment shown below, combined with Figure 3 According to the stopping condition of filling that the filling time reaches the target time, the above-mentioned vehicle coolant circulation filling control method is further described in detail.

[0079] Figure 3 This is a flow chart of the second embodiment of the vehicle coolant circulation filling control method provided by this application. Figure 3 , the method may include:

[0080] S301 : In response to a selection operation by a user, obtain the coolant height in the expansion kettle.

[0081] S302: If the coolant height is greater than or equal to a first preset height, control the coolant pump to circulate and refill the coolant.

[0082] S303: If the coolant level is lower than a first preset level during the coolant circulation filling process, suspend the coolant circulation filling and determine a first filling duration.

[0083] In this step, during the coolant circulation filling process, the vehicle controller can determine that the coolant height in the expansion kettle is less than the first preset height based on the alarm of the liquid level sensor, control the coolant pump to suspend the coolant circulation filling, and record the first filling time of the circulation filling.

[0084] In an optional embodiment, when the VCU suspends coolant circulation and filling, it can send a liquid level alarm message to the user's terminal device (such as a smartphone) or the vehicle's human-computer interaction interface (such as an instrument panel or a central control screen) to remind the user to replenish the coolant in time.

[0085] For example, during the coolant circulation filling process, the VCU can determine that the coolant height H1 in the expansion kettle is less than the first preset height HA based on the liquid level sensor alarm, control the coolant pump to suspend the coolant circulation filling, and record the first filling time of the circulation filling as 2 hours.

[0086] S304: When the coolant level returns to the second preset level, the coolant circulation filling is resumed, and the filling time is further increased based on the first filling time to obtain a second filling time.

[0087] In this step, when the vehicle controller monitors that the coolant level in the expansion tank has returned to the second preset level, it can control the coolant pump to resume the coolant circulation filling, and continue to accumulate the filling time based on the original first filling time to obtain the second filling time.

[0088] In an optional embodiment, the process of circulating coolant refilling may involve multiple refills to the expansion tank, so the first and second refilling times can be dynamically adjusted and accumulated. In a specific implementation, each time the VCU detects that the coolant level in the expansion tank has returned to a second preset level, it can automatically restart the coolant pump for refilling and accumulate the current refilling time with the previous refilling time to form a comprehensive refilling time record (i.e., the second refilling time). The current refilling time can be the refilling time after the coolant level has returned to normal, and the previous refilling time can be the initial first refilling time or the accumulated refilling time.

[0089] The second preset height can be a higher level than the minimum safe level to ensure sufficient coolant in the expansion tank when resuming coolant circulation. For example, the second preset height can be HB, which is greater than the first preset height HA.

[0090] It should be noted that if the coolant level in the expansion kettle is less than the first preset level and the coolant is not replenished to the second preset level in time, the coolant pump can continue to perform normal circulation of the coolant and control the circulation of the coolant in the thermal management system, and the time of the normal circulation is not included in the filling time.

[0091] For example, the VCU may resume coolant circulation filling when the coolant level in the expansion kettle returns to a second preset height HB, and may continue to increase the filling time based on the first filling time of 2 hours to obtain a second filling time.

[0092] S305: When the second filling time reaches the target time, the coolant pump is controlled to stop circulating and filling the coolant.

[0093] For example, the VCU may control the coolant pump to stop circulating and filling the coolant when the second filling time reaches the target time of 5 hours.

[0094] In an embodiment of the present application, the vehicle controller can obtain the coolant height in the expansion tank based on the user's selected operation. When the coolant height is greater than or equal to the first preset height, the coolant pump can be started for circulation filling. If the coolant height drops below the first preset height during the filling process, the vehicle controller will suspend the coolant circulation filling and record the current first filling time. When the coolant height returns to the second preset height, the vehicle controller will restart the coolant circulation filling and continue to increase the filling time based on the first filling time to obtain a second filling time. Once the second filling time reaches the predetermined target time, the coolant pump can be controlled to stop the coolant circulation filling. In the above process, by setting a clear target time, the vehicle controller can accurately control the coolant circulation filling process, solving the problem of insufficient circulation filling time causing the thermal management system to lack liquid, thereby causing the cooling / heating function to fail; at the same time, it effectively avoids the risk of coolant leakage and increased vehicle energy consumption that may be caused by excessive circulation filling time. In addition, automated duration control reduces the need for manual intervention, making the filling process more efficient and reliable, thereby improving the overall efficiency of coolant filling.

[0095] exist Figure 2 Based on the embodiment shown below, combined with Figure 4 , according to the stopping condition of filling that the mileage reaches the target mileage, the above-mentioned vehicle coolant circulation filling control method is further described in detail.

[0096] Figure 4 This is a flow chart of the third embodiment of the vehicle coolant circulation filling control method provided by this application. Figure 4 , the method may include:

[0097] S401 : In response to a selection operation by a user, obtain the coolant height in the expansion kettle.

[0098] S402: If the coolant height is greater than or equal to a first preset height, control the coolant pump to circulate and refill the coolant.

[0099] S403: If the coolant level is lower than a first preset level during the coolant circulation filling process, suspend the coolant circulation filling and determine a first driving mileage.

[0100] In this step, during the coolant circulation filling process, the vehicle controller can determine that the coolant height in the expansion kettle is less than the first preset height based on the alarm of the liquid level sensor, control the coolant pump to suspend the coolant circulation filling, and record the first mileage that the vehicle has traveled.

[0101] Optionally, when circulating and refilling coolant before a vehicle leaves the factory or during after-sales maintenance, the vehicle may need to be transferred and driven a certain distance. Therefore, when it is determined that the coolant level in the expansion tank is less than a first preset level, the first mileage traveled can be recorded so that the coolant can be recirculated and refilled again during subsequent transfers after the coolant level returns to a second preset level. Transfer operations may include, but are not limited to, the following: moving a vehicle between different production lines or workshops before leaving the factory; moving a vehicle between dedicated testing sites or equipment before leaving the factory; transferring a vehicle from a production plant to a storage facility or distribution center; and moving a vehicle between different repair sites or workshops during after-sales service and maintenance.

[0102] For example, during the coolant circulation filling process, the VCU can determine that the coolant height H1 in the expansion tank is less than the first preset height HA based on the liquid level sensor alarm, control the coolant pump to suspend the coolant circulation filling, and record the first mileage traveled as 20km.

[0103] S404: When the coolant level returns to a second preset level, the coolant circulation filling is resumed, and the mileage is further increased on the basis of the first mileage to obtain a second mileage.

[0104] In this step, when the vehicle controller monitors that the coolant level in the expansion tank has returned to a second preset level, it can control the coolant pump to resume coolant circulation and filling, and continue to increase the mileage based on the original first mileage to obtain a second mileage.

[0105] Similarly, the process of circulating coolant and refilling may involve multiple refills to the expansion tank, so the first and second mileages can be dynamically adjusted and accumulated. Specifically, each time the VCU detects that the coolant level in the expansion tank has returned to a second preset level, it automatically restarts the coolant pump to refill the tank and accumulates the current mileage with the previous mileage to form a comprehensive mileage record (i.e., the second mileage). The current mileage can be the mileage traveled after the coolant level has returned to normal, and the previous mileage can be the initial first mileage or the accumulated mileage.

[0106] For example, the VCU may resume coolant circulation filling when the coolant level in the expansion tank returns to a second preset level HB, and continue to increase the mileage based on the first mileage of 20 km to obtain a second mileage.

[0107] S405: When the second driving mileage reaches the target mileage, control the coolant pump to stop circulating and filling the coolant.

[0108] For example, the VCU may control the coolant pump to stop circulating and filling the coolant when the second driving mileage reaches the target mileage of 100 km.

[0109] In an embodiment of the present application, the vehicle controller can obtain the coolant level in the expansion tank based on the user's selected operation. When the coolant level is greater than or equal to the first preset level, the coolant pump can be started for circulation filling. If the coolant level drops below the first preset level during the filling process, the vehicle controller will suspend the coolant circulation filling and record the current first mileage. When the coolant level returns to the second preset level, the vehicle controller will restart the coolant circulation filling and continue to increase the driving distance based on the first mileage to obtain the second mileage. Once the second mileage reaches the predetermined target mileage, the coolant pump can be controlled to stop the coolant circulation filling. In the above process, the setting of the target mileage enables the vehicle to continue to effectively manage the coolant circulation filling during the transportation process, reducing the need for manual intervention and improving the filling efficiency. In addition, this setting also ensures that the filling process lasts long enough to meet the coolant level required by the thermal management system, avoiding the problem of insufficient coolant due to insufficient circulation filling time.

[0110] Figure 5 This is a flow chart of the fourth embodiment of the vehicle coolant circulation filling control method provided by this application. Figure 5 ,exist Figure 3 Based on the embodiment shown, the method may further include:

[0111] S501: In response to a user's selection operation, generate a refill notification event, and send the refill notification event to a cloud server.

[0112] In this step, the vehicle controller can send a refueling notification event to the cloud server in response to the user's selection operation, wherein the refueling notification event can include a vehicle identification code and a refueling start type, and the refueling start type is automatic start or manual start.

[0113] In an optional embodiment, if the selected operation is to put the vehicle in the ON gear, the filling start type can be determined to be automatic start; if the selected operation is to select a dedicated coolant circulation filling button in the vehicle's human-computer interaction interface, the filling start type can be determined to be manual start.

[0114] The Vehicle Identification Number (VIN) is a unique identifier for each vehicle. Using the VIN in the refill notification event ensures that the cloud server accurately identifies the vehicle undergoing the coolant refill operation.

[0115] For example, in response to the user placing the vehicle in the ON gear, the VCU may send a refueling notification event to the cloud server, wherein the refueling notification event may include the vehicle VIN code "1HGCM" and the refueling start type is automatic start.

[0116] S502. During the process of circulating and filling the coolant, a filling event is generated and sent to the cloud server so that the cloud server can perform filling acceptance. The filling event includes the filling duration.

[0117] In this step, during the coolant circulation filling process, the vehicle controller can further generate a filling event including the filling duration, and send the filling event to the cloud server so that the cloud server can perform filling acceptance to achieve a closed loop.

[0118] In an optional implementation, a link between the vehicle and the cloud server may be established through a refueling notification event, and the refueling event may no longer include the vehicle identification code and the refueling start type.

[0119] The refill acceptance for the cloud server can be to verify whether the refill process meets the predetermined standards and requirements when the cloud server receives the refill event, thereby ensuring that the circulating refill of the coolant reaches the level required by the thermal management system.

[0120] For example, during a coolant refill cycle, the VCU can generate a refill event with a refill duration of 5 hours and send it to the cloud server. Upon receiving the refill event, the cloud server can determine that the 5-hour refill duration meets the predetermined standard and confirm that the refill cycle process complies with the operating specifications. The expected standard may be: for a vehicle with a VIN code of "1HGCM," the standard refill duration for a coolant refill cycle is 5 hours.

[0121] Optionally, if the refueling time included in the refueling event does not meet the predetermined standards and requirements, the cloud server can send an alarm message to the human-computer interaction interface of the vehicle to remind the user that there is an abnormality in the refueling process.

[0122] For example, if the cloud server detects that the refilling time is 2 hours and does not meet the predetermined standard of 5 hours, it can generate an alarm message and send it to the vehicle's dashboard. The alarm message may be: "Attention: The coolant refilling time of your vehicle (VIN code: 1HGCM) has been detected to be 2 hours, which does not meet the predetermined standard requirement."

[0123] In an embodiment of the present application, the vehicle controller can generate a filling notification event in response to a user's selection operation and send it to the cloud server. The filling notification event may include a vehicle identification code and a filling start type, where the filling start type may be automatic start or manual start. During the coolant circulation filling process, a filling event including the filling duration can be generated and sent to the cloud server so that the cloud server can perform filling duration acceptance. In the above process, by sending the filling notification event and the filling event including the filling duration to the cloud server, the vehicle's coolant circulation filling duration can be monitored and managed in real time. This enables users to keep abreast of the coolant circulation filling progress, improve their control over the vehicle and user experience.

[0124] Figure 6 This is a flow chart of the fourth embodiment of the vehicle coolant circulation filling control method provided by this application. Figure 6 ,exist Figure 4 Based on the embodiment shown, the method may further include:

[0125] S601: In response to a user's selection operation, generate a refill notification event, and send the refill notification event to a cloud server.

[0126] For example, the VCU may send a refill notification event to the cloud server in response to the user selecting the coolant circulation refill button in the vehicle's human-computer interface, wherein the refill notification event may include the vehicle VIN code "2HGCM" and the refill start type is manual start.

[0127] S602. During the coolant circulation filling process, a filling event is generated and sent to the cloud server so that the cloud server can perform filling acceptance; the filling event includes mileage.

[0128] For example, during a coolant refill cycle, the VCU can generate a refill event with a mileage of 100 km and send it to the cloud server. Upon receiving the refill event, the cloud server can determine that the mileage of 100 km meets the predetermined standard and confirm that the refill cycle process complies with the operating specifications. The expected standard may be: for a vehicle with a VIN code of "2HGCM", the standard mileage for a coolant refill cycle is 100 km.

[0129] In an embodiment of the present application, by sending a filling notification event and a filling event including mileage to the cloud server, the cloud server can verify and confirm the coolant circulation filling process based on the mileage, thereby improving the accuracy and reliability of the coolant circulation filling.

[0130] In one possible design, the vehicle controller can also send refueling information to the vehicle's human-machine interface for display. The refueling information can include the refueling start type and refueling progress information, which can be refueling time or mileage.

[0131] In an optional embodiment, the vehicle controller can synchronously send the refueling information to the vehicle's human-computer interaction interface and display it through the human-computer interaction interface.

[0132] For example, if the refueling stop condition is determined based on the refueling duration, refueling information 1 can be sent synchronously when the user puts the vehicle in the ON gear. Refueling information 1 can include the refueling start type and refueling progress information. The refueling start type is automatic start, and the refueling progress information is that the refueling duration is 0. During the refueling process, refueling information 2 can be sent synchronously. Refueling information 2 can include the changing refueling duration. When the refueling duration reaches the target duration, refueling information 3 can be sent synchronously. Refueling information 3 can include the final refueling duration.

[0133] For example, if the refueling stop condition is based on mileage, refueling message 1 can be sent simultaneously when the user puts the vehicle in the ON gear. Refueling message 1 can include the refueling start type and refueling progress information. The refueling start type is automatic start, and the refueling progress information is 0 mileage. During the vehicle transfer process, refueling message 2 can be sent simultaneously. Refueling message 2 can include the changing mileage. When the mileage reaches the target mileage, refueling message 3 can be sent simultaneously. Refueling message 3 can include the target mileage.

[0134] In this embodiment of the present application, the vehicle controller can transmit refill information to the vehicle's human-machine interface and display it there. This refill information can include the refill start type and refill progress information, which can be refill duration or mileage. This allows users to monitor the status and progress of the coolant refill process in real time, thereby improving operational transparency and user experience.

[0135] In one possible design, the vehicle controller can also store the refueling time or mileage when the vehicle is powered off normally, and continue to accumulate based on the refueling time or mileage when the vehicle is powered on again.

[0136] Alternatively, a normal vehicle power-off may mean that the ignition switch or start button is in the off position (e.g., the vehicle is in the OFF gear). In this case, the vehicle controller can automatically save the current refueling duration and mileage data after detecting the vehicle power-off, ensuring that these data can be accurately restored and continued to accumulate when the vehicle is restarted.

[0137] For example, the VCU may store the refueling time as 2 hours when the vehicle is placed in the OFF gear, and continue to accumulate the refueling time based on the 2 hours when the vehicle is powered on again.

[0138] In this embodiment of the present application, the vehicle controller can automatically store refueling time or mileage when the vehicle is normally powered off, ensuring that this data can be accurately restored and continued to accumulate when the vehicle is powered back on. This effectively prevents data loss due to power outages, thereby improving data integrity and reliability.

[0139] Figure 7 This is a schematic diagram of the vehicle coolant circulation and filling control principle provided in the embodiment of this application. Figure 7 The vehicle controller can respond to the operator's selection operation and obtain the coolant level signal in the expansion tank. If the coolant level is greater than or equal to a first preset level, a start signal is sent to the coolant pump to control the coolant pump to circulate coolant to the thermal management cycle refrigeration / heating system. When the stop filling condition is met, a stop filling signal is sent to the coolant pump to control the coolant pump to stop circulating coolant to the thermal management cycle refrigeration / heating system. The selection operation can be turned on by turning the vehicle on or manually triggered by after-sales service. The manual trigger after-sales service can be selecting the coolant circulation filling button on the operator's vehicle human-machine interface.

[0140] In one specific embodiment, while the thermal management cycle cooling / heating system (i.e., thermal management system) is circulating and refilling coolant, the vehicle controller can also monitor status signals from key components in the system. These status signals may include temperature sensor signals, pressure sensor signals, flow sensor signals, and the open / close status of various valves.

[0141] For example, the coolant pump can be equipped with two valves for more flexible coolant management. Valve 1 connects to the expansion tank and manages the coolant's circulating refill, while valve 2 manages the coolant's normal circulation. When the coolant level in the expansion tank falls below a first preset level, the vehicle controller can send a stop-refill command to the coolant pump, closing valve 1 to halt the coolant's circulating refill. Simultaneously, valve 2 can remain open to ensure the coolant continues to circulate normally.

[0142] During the coolant refill process, the vehicle controller sends refill information to the vehicle's human-machine interface (HMI) (e.g., instrument panel or central control screen) for display. This information can include the type of refill start and progress information, such as refill duration or mileage. The instrument display allows operators to monitor the refill process in real time and determine the status and progress of the refill cycle.

[0143] Optionally, the vehicle controller can also send refill notification events generated by user-selected operations, as well as refill events generated during the coolant refill cycle, to the cloud server via the onboard TBOX terminal, enabling the cloud server to verify refills. Refill notification events include the vehicle identification number and refill initiation type, while refill events can include refill duration or mileage.

[0144] It should be noted that the cloud server can complete the acceptance automatically or through the confirmation of the operator.

[0145] The vehicle coolant circulation filling control principle diagram provided in the embodiment of the present application, and its specific execution process can refer to the technical solution shown in the above method embodiment. Its implementation principle and beneficial effects are similar and will not be repeated here.

[0146] Figure 8 This is a schematic diagram of the structure of the first embodiment of the vehicle coolant circulation filling control device provided by this application. Figure 8 The vehicle coolant circulation filling control device 10 includes:

[0147] An acquisition module 11 is configured to acquire the coolant height in the expansion kettle in response to a user's selection operation;

[0148] The first processing module 12 is configured to control the coolant pump to circulate and refill the coolant if the coolant height is greater than or equal to a first preset height;

[0149] The second processing module 13 is configured to control the coolant pump to stop circulating and filling the coolant when a filling stop condition is met; the filling stop condition is determined based on the filling duration and / or the mileage.

[0150] The vehicle coolant circulation filling control device provided in the embodiment of the present application can implement the technical solution shown in the above method embodiment. Its implementation principle and beneficial effects are similar and will not be repeated here.

[0151] In a possible implementation, the filling stop condition is that the filling duration reaches a target duration, and the first processing module 12 is further configured to:

[0152] If the coolant level is lower than the first preset level during the coolant circulation filling process, pausing the coolant circulation filling and determining a first filling time;

[0153] When the coolant level returns to a second preset level, the coolant circulation filling is resumed, and the filling time is further increased based on the first filling time to obtain a second filling time; the first preset level is less than the second preset level;

[0154] Accordingly, the second processing module 13 is specifically configured to:

[0155] When the second filling time reaches the target time, the coolant pump is controlled to stop circulating and filling the coolant.

[0156] In a possible implementation manner, the refueling stop condition is that the mileage reaches the target mileage, and the first processing module 12 is further configured to:

[0157] If the coolant level is less than the first preset level during the coolant circulation filling process, pausing the coolant circulation filling and determining the first mileage;

[0158] When the coolant level returns to a second preset level, the coolant circulation filling is resumed, and the mileage is further increased on the basis of the first mileage to obtain a second mileage; the first preset level is less than the second preset level;

[0159] Accordingly, the second processing module 13 is specifically configured to:

[0160] When the second driving mileage reaches the target mileage, the coolant pump is controlled to stop circulating and filling the coolant.

[0161] Figure 9This is a schematic diagram of the structure of the second embodiment of the vehicle coolant circulation filling control device provided by this application. Figure 9 ,exist Figure 8 Based on the embodiment shown, the vehicle coolant circulation filling control device 10 further includes:

[0162] The third processing module 14 is used to generate a filling event during the coolant circulation filling process and send the filling event to the cloud server so that the cloud server can perform filling acceptance; the filling event includes the filling duration.

[0163] In a possible implementation, the third processing module 14 is further configured to:

[0164] During the process of circulating and filling the coolant, a filling event is generated and sent to the cloud server so that the cloud server can perform filling acceptance; the filling event includes mileage.

[0165] In a possible implementation, the third processing module 14 is further configured to:

[0166] In response to the user's selection operation, a refueling notification event is generated and sent to the cloud server. The refueling notification event includes a vehicle identification code and a refueling start type, where the refueling start type is automatic start or manual start.

[0167] In a possible implementation, the third processing module 14 is further configured to:

[0168] The filling information is sent to the human-computer interaction interface of the vehicle and displayed through the human-computer interaction interface; the filling information includes the filling start type and filling progress information, and the filling progress information can be the filling time or mileage.

[0169] In a possible implementation, the first processing module 12 is further configured to:

[0170] When the vehicle is powered off normally, storing the refueling time or the mileage;

[0171] When the vehicle is powered on again, the accumulation continues based on the refueling time or the mileage.

[0172] The vehicle coolant circulation filling control device provided in the embodiment of the present application can implement the technical solution shown in the above method embodiment. Its implementation principle and beneficial effects are similar and will not be repeated here.

[0173] Figure 10 This is a schematic diagram of the structure of the vehicle controller provided in the embodiment of this application. Figure 10The vehicle controller 20 provided in this embodiment includes: at least one processor 21 and a memory 22. Optionally, the vehicle controller 20 also includes a communication component 23. The processor 21, the memory 22, and the communication component 23 are connected via a bus 24.

[0174] During the specific implementation process, at least one processor 21 executes the computer-executable instructions stored in the memory 22, so that the at least one processor 21 performs the above method.

[0175] The specific implementation process of the processor 21 can be found in the above method embodiment. Its implementation principle and technical effects are similar and will not be repeated here in this embodiment.

[0176] In the above embodiments, it should be understood that the processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASICs), etc. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the present invention may be directly executed by a hardware processor or by a combination of hardware and software modules within the processor.

[0177] The memory may include random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage.

[0178] A bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. Buses can be categorized as address buses, data buses, and control buses. For ease of illustration, the buses in the drawings of this application are not limited to just one bus or just one type of bus.

[0179] The present application also provides a vehicle, comprising a vehicle body and Figure 10The vehicle controller shown can execute the methods described in the above embodiments. Furthermore, the vehicle can be equipped with an expansion tank, a coolant pump, and a thermal management system. The coordinated operation of these components allows the vehicle to more effectively manage heat and improve overall vehicle reliability.

[0180] The present application also provides a computer program product, including a computer program, which implements the above method when executed by a processor.

[0181] The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the above method is implemented.

[0182] The readable storage medium may be implemented by any type of volatile or non-volatile memory device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium may be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0183] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium and write information to the readable storage medium. Of course, the readable storage medium can also be an integral part of the processor. The processor and the readable storage medium can be located in an application specific integrated circuit (ASIC). Of course, the processor and the readable storage medium can also exist in the device as discrete components.

[0184] The division of units is merely a logical functional division; actual implementations may employ alternative divisions, such as combining or integrating multiple units or components into another system, or omitting or disabling certain features. Furthermore, any direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection between devices or units, either through an interface, electrical, mechanical, or other means.

[0185] Units described as separate components may or may not be physically separate, and components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0186] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0187] If a function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the portion that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments of the method of the present invention. The aforementioned storage medium includes various media that can store program code, such as USB flash drives, mobile hard drives, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical disks.

[0188] Those skilled in the art will appreciate that all or part of the steps in the above-described method embodiments can be implemented using hardware associated with program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0189] Finally, it should be noted that those skilled in the art will readily identify other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The present invention is not limited to the precise structure described above and illustrated in the accompanying drawings, and various modifications and variations may be made without departing from the scope thereof. The scope of the present invention is limited solely by the appended claims.

Claims

1. A vehicle coolant circulation filling control method, characterized in that: include: In response to a selection operation by the user, obtaining the coolant height in the expansion kettle; If the coolant height is greater than or equal to a first preset height, controlling the coolant pump to circulate and refill the coolant; When a filling stop condition is met, the coolant pump is controlled to stop circulating the coolant; the filling stop condition is determined based on the filling duration and / or the mileage.

2. The method according to claim 1, characterized in that The refueling stop condition is that the refueling duration reaches the target duration, and the method further includes: If the coolant level is lower than the first preset level during the coolant circulation filling process, pausing the coolant circulation filling and determining a first filling time; When the coolant level returns to a second preset level, the coolant circulation filling is resumed, and the filling time is further increased based on the first filling time to obtain a second filling time; the first preset level is less than the second preset level; Accordingly, when the filling stop condition is met, controlling the coolant pump to stop circulating the coolant includes: When the second filling time reaches the target time, the coolant pump is controlled to stop circulating and filling the coolant.

3. The method according to claim 1, characterized in that The refueling stop condition is that the driving mileage reaches the target mileage, and the method further includes: If the coolant level is less than the first preset level during the coolant circulation filling process, pausing the coolant circulation filling and determining the first mileage; When the coolant level returns to a second preset level, the coolant circulation filling is resumed, and the mileage is further increased on the basis of the first mileage to obtain a second mileage; the first preset level is less than the second preset level; Accordingly, when the filling stop condition is met, controlling the coolant pump to stop circulating the coolant includes: When the second driving mileage reaches the target mileage, the coolant pump is controlled to stop circulating and filling the coolant.

4. The method according to claim 2, characterized in that The method further comprises: During the process of circulating and filling the coolant, a filling event is generated and sent to the cloud server so that the cloud server can perform filling acceptance; the filling event includes the filling duration.

5. The method according to claim 3, characterized in that The method further comprises: During the process of circulating and filling the coolant, a filling event is generated and sent to the cloud server so that the cloud server can perform filling acceptance; the filling event includes mileage.

6. The method according to any one of claims 1 to 5, characterized in that The method further comprises: In response to the user's selection operation, a refueling notification event is generated and sent to the cloud server. The refueling notification event includes a vehicle identification code and a refueling start type, where the refueling start type is automatic start or manual start.

7. The method according to claim 6, characterized in that The method further comprises: The filling information is sent to the human-computer interaction interface of the vehicle and displayed through the human-computer interaction interface; the filling information includes the filling start type and filling progress information, and the filling progress information can be the filling time or mileage.

8. A vehicle coolant circulation filling control device, characterized in that: include: an acquisition module, configured to acquire the coolant height in the expansion kettle in response to a selection operation by a user; A first processing module is configured to control a coolant pump to circulate and refill the coolant if the coolant height is greater than or equal to a first preset height; The second processing module is used to control the coolant pump to stop circulating and filling the coolant when a stop filling condition is met; the stop filling condition is determined based on the filling time and / or mileage.

9. A vehicle controller, characterized in that: include: Memory, processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory, so that the processor performs the method according to any one of claims 1 to 7.

10. A vehicle, characterized in that: Including the vehicle controller as claimed in claim 9.

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