A coolant filling control method and system for a passenger car

Abstract

The present application provides a method and system for controlling the coolant filling of a bus. The method includes: determining whether to enter the coolant filling mode according to the obtained engine operating state, the power supply state of the warm air electric water pump, the power supply state of the warm air electronic water valve, the battery power, and the operating state of the air conditioning system; when entering the coolant filling mode, filling the coolant and controlling the warm air electric water pump and the warm air electronic water valve during the filling process; and exiting the coolant filling mode when any one of the obtained battery power, the vehicle power supply state, the air conditioning system operation, the vehicle speed, and the expansion tank liquid level meets the set conditions. This strategy can be conveniently operated by the operator to be turned on or off without additional dedicated equipment; after being turned on, it controls the operation of the electric water pump and the electronic water valve in the warm air system according to a preset program to quickly discharge the air in the cooling system and fill it with coolant, making the filling process more convenient, fast, and smooth.

Description

Technical Field

[0001] One or more embodiments of this specification relate to the field of automotive technology, and particularly to a method and system for controlling coolant filling in a bus. Background Art

[0002] A bus has a relatively large number of passengers. To ensure passenger comfort, generally more than 3 heaters are arranged in the passenger compartment. In addition, some vehicle models also install components such as fuel heaters. The coolant pipeline is long and complex, resulting in very slow coolant filling and it is difficult to fill it up at one time. Most buses provide coolant filling guidance in the user manual, and generally the method of starting the engine is adopted to assist in filling. However, at this time, there is less coolant in the system. To avoid engine damage, the engine speed must be limited to a low level. At this time, the low engine water pump speed will result in low system pressure, and it is difficult to overcome the flow resistance generated by components such as heaters in the long and complex cooling pipeline and path, resulting in a long filling time and it is difficult to fill it up at one time. Some vehicle models will additionally design a special degassing and replenishing structure to improve the filling effect, but it will increase the cost. Some manufacturers will develop diagnostic programs to control components such as the electric water pump and electric water valve of the vehicle to operate during coolant filling, but this requires special diagnostic equipment, which is costly and also causes inconvenience to vehicle users. Summary of the Invention

[0003] In view of this, the purpose of one or more embodiments of this specification is to provide a method and system for controlling coolant filling in a bus to improve the effect of adding coolant.

[0004] In the first aspect, a method for controlling coolant filling in a bus is provided. The method for controlling coolant filling in a bus includes the following steps:

[0005] Obtain the engine operating state, the power supply state of the warm air electric water pump, the power supply state of the warm air electronic water valve, the battery power, and the operating state of the air conditioning system;

[0006] Determine whether to enter the coolant filling mode according to the obtained engine operating state, the power supply state of the warm air electric water pump, the power supply state of the warm air electronic water valve, the battery power, and the operating state of the air conditioning system;

[0007] When entering the coolant filling mode, fill the coolant and control the warm air electric water pump and the warm air electronic water valve during the filling process;

[0008] Obtain the battery power, the vehicle power supply state, the air conditioning system operation, the vehicle speed, and the expansion tank liquid level;

[0009] When any of the obtained battery power, vehicle power supply state, air conditioning system operation, vehicle speed, and expansion tank liquid level meets the set conditions, exit the coolant filling mode.

[0010] Compared with the prior art, the present invention designs a control strategy that can be conveniently operated by an operator to be turned on or off without additional dedicated equipment. After being turned on, it controls the operation of the electric water pump and the electronic water valve in the warm air system according to a preset program to quickly discharge the air in the cooling system and fill it with coolant, making the filling process more convenient, fast, and smooth. This strategy also has the determination of multiple exit conditions, which can effectively avoid problems such as the battery power being exhausted due to forgetting to operate and turn off, or affecting the air conditioning performance.

[0011] In a specific feasible implementation, when entering the coolant filling mode, coolant is filled, and during the filling process, the control of the warm air electric water pump and the warm air electronic water valve is as follows:

[0012] The speed control and operation cycle control of the warm air electric water pump.

[0013] In a specific feasible implementation, the speed control and operation cycle control of the warm air electric water pump specifically include: controlling the speed of the electric water pump according to the different actual power consumptions of the electric water pump in different stages of coolant filling;

[0014] Based on the preset running and stopping times of the electric water pump, controlling the running and stopping of the electric water pump.

[0015] In a specific feasible implementation, when entering the coolant filling mode, coolant is filled, and vehicle faults are detected.

[0016] In a specific feasible implementation, when entering the coolant filling mode, filling coolant and detecting vehicle faults include:

[0017] Collecting and storing the first fault codes reported after the warm air electric water pump and the warm air electronic water valve fail through the vehicle controller, comparing the first fault codes with the preset fault list, and selecting according to the comparison results: no treatment, prompting fault information, prompting fault information and exiting the filling strategy.

[0018] In a specific feasible implementation, when entering the coolant filling mode, filling coolant and detecting vehicle faults further include:

[0019] Collecting the second fault codes reported after other systems and components fail through the vehicle controller, comparing the second fault codes with the preset fault list, and selecting according to the comparison results: no treatment, prompting fault information, prompting fault information and exiting the filling strategy.

[0020] In a specific feasible implementation, when any one of the obtained battery power, vehicle power supply status, air conditioning system operation, vehicle speed, and expansion tank liquid level meets the set conditions, the coolant filling mode is exited; specifically including:

[0021] When the battery power (SOC) is less than 30%, the coolant filling mode is exited;

[0022] When the vehicle enters the power-off procedure or the power supply is abnormal, the coolant filling mode is exited;

[0023] When there is an operation input in the air conditioning system, it is determined that the user needs to use the air conditioner or the filling is completed, and the coolant filling mode is exited;

[0024] When it is monitored that the vehicle speed is greater than 15 km / h and lasts for more than 10 seconds, it is judged that the filling operation is completed, and the coolant filling mode is exited;

[0025] When the actual liquid level monitored by the expansion tank liquid level sensor is continuously higher than the lowest alarm liquid level for more than 30 minutes, it is judged that the filling operation is completed, and the coolant filling mode is exited.

[0026] In a second aspect, a bus coolant filling control system is provided, and the system includes:

[0027] A collection device: used to obtain the engine operating state, the power supply state of the warm air electric water pump, the power supply state of the warm air electronic water valve, the battery power, and the air conditioning system operating state before the coolant is filled; during the coolant filling process, obtain the battery power, the vehicle power supply state, the air conditioning system operation, the vehicle speed, and the expansion tank liquid level;

[0028] An information processing device, used to determine whether to enter the coolant filling mode according to the obtained engine operating state, the power supply state of the warm air electric water pump, the power supply state of the warm air electronic water valve, the battery power, and the air conditioning system operating state; when entering the coolant filling mode, fill the coolant and control the warm air electric water pump and the warm air electronic water valve during the filling process; when any one of the obtained battery power, vehicle power supply state, air conditioning system operation, vehicle speed, and expansion tank liquid level meets the set conditions, exit the coolant filling mode.

[0029] Compared with the prior art, the present invention designs a control strategy, which can be conveniently operated by the operator to turn on or off without additional special equipment; after being turned on, the electric water pump and the electronic water valve in the warm air system are controlled to operate according to a preset program to quickly discharge the air in the cooling system and fill it with coolant, making the filling process more convenient, fast and smooth; this strategy also has a variety of exit condition judgments, which can effectively avoid problems such as the battery power being exhausted due to forgetting to operate and turn off, or affecting the air conditioning performance.

[0030] In a specific feasible implementation, the information processing device is further configured to control the rotational speed of the electric water pump according to the different actual power consumptions of the electric water pump in different stages of coolant filling;

[0031] Based on the preset operating and stopping times of the electric water pump, control the operation and stop of the electric water pump.

[0032] In a third aspect, a vehicle is provided, which includes a vehicle body and the passenger car coolant filling control system described in any one of the above in the vehicle body.

[0033] Compared with the prior art, the present invention designs a control strategy, which can be conveniently operated by an operator to be turned on or off without additional dedicated equipment; after being turned on, the electric water pump and the electronic water valve in the heating system are controlled to operate according to a preset program to quickly discharge the air in the cooling system and fill it with coolant, making the filling process more convenient, fast and smooth; this strategy also has the determination of multiple exit conditions, which can effectively avoid problems such as the battery power being exhausted due to forgetting to operate and close, or affecting the air conditioning performance.

[0034] In a fourth aspect, an electronic 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 program, it implements the methods described in the second aspect and any possible design in the second aspect.

[0035] In a fifth aspect, a non-transitory computer-readable storage medium is provided. The non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to cause the computer to execute the methods described in the second aspect and any possible design in the second aspect.

[0036] In a sixth aspect, a computer program product is further provided, including instructions, which when running on a computer, cause the computer to execute the methods described in the second aspect and any possible design in the second aspect of the present application.

[0037] In addition, for the technical effects brought by any possible design manner in the fourth aspect to the sixth aspect, reference can be made to the effects brought by different design manners in the method part, which will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in one or more embodiments or the prior art of this specification, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only one or more embodiments of this specification. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0039] Figure 1It is a structural block diagram of the passenger car warm air system provided by the embodiment of the present application;

[0040] Figure 2 It is a flowchart of the passenger car coolant filling control method provided by the embodiment of the present application;

[0041] Figure 3 It is a control block diagram of the passenger car coolant filling provided by the embodiment of the present application;

[0042] Figure 4 It is a flowchart of the entry strategy provided by the embodiment of the present application;

[0043] Figure 5 It is a flowchart of the operation strategy provided by the embodiment of the present application;

[0044] Figure 6 It is a flowchart of the exit strategy provided by the embodiment of the present application;

[0045] Figure 7 It is a structural block diagram of the electronic device provided by the embodiment of the present application. Detailed implementation manners

[0046] To make the purpose, technical solutions and advantages of the present disclosure clearer and more understandable, the following further describes the present disclosure in detail with reference to specific embodiments and the accompanying drawings.

[0047] It should be noted that unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of this specification should have the ordinary meaning understood by those of ordinary skill in the art to which the present disclosure belongs. The "first", "second" and similar terms used in one or more embodiments of this specification do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0048] Referring to Figure 1 , Figure 1 shows a structural block diagram of a passenger car warm air system. The passenger car warm air system includes a front warm air, a rear warm air 1, a rear warm air 2, a rear warm air 3, an engine and an electric water pump, and the above components form a circulation loop. When filling the coolant, it is added to the above circulation loop.

[0049] Referring to Figure 2 ,Figure 2 The flowchart of the coolant filling control method for a passenger car provided by an embodiment of the present application is shown. The coolant filling control method for the passenger car includes the following steps:

[0050] Step 001: Obtain the engine operating state, the power supply state of the warm air electric water pump, the power supply state of the warm air electronic water valve, the battery power, and the operating state of the air conditioning system;

[0051] Step 002: Determine whether to enter the coolant filling mode according to the obtained engine operating state, the power supply state of the warm air electric water pump, the power supply state of the warm air electronic water valve, the battery power, and the operating state of the air conditioning system;

[0052] Step 003: When entering the coolant filling mode, fill the coolant, and control the warm air electric water pump and the warm air electronic water valve during the filling process;

[0053] Specifically, when entering the coolant filling mode, fill the coolant, and control the warm air electric water pump and the warm air electronic water valve during the filling process; specifically: control the rotation speed and the operation cycle of the warm air electric water pump. Among them, the control of the rotation speed and the operation cycle of the warm air electric water pump; specifically includes: controlling the rotation speed of the electric water pump according to the different actual power consumption of the electric water pump in different stages of coolant filling; controlling the operation and stop of the electric water pump based on the preset operation and stop time of the electric water pump.

[0054] In addition, when entering the coolant filling mode, fill the coolant and detect vehicle faults. Specifically includes component faults and vehicle faults. Among them, component faults include collecting and storing the first fault code reported after the warm air electric water pump and the warm air electric water valve fail through the vehicle controller, and comparing the first fault code with the preset fault list, and selecting according to the comparison result: do not process, prompt fault information, prompt fault information and exit the filling strategy. Vehicle faults include collecting the second fault code reported after other systems and components fail through the vehicle controller, and comparing the second fault code with the preset fault list, and selecting according to the comparison result: do not process, prompt fault information, prompt fault information and exit the filling strategy.

[0055] Step 004: Obtain the battery power, the vehicle power supply state, the air conditioning system operation, the vehicle speed, and the expansion tank liquid level;

[0056] Step 005: Exit the coolant filling mode when any one of the obtained battery power, the vehicle power supply state, the air conditioning system operation, the vehicle speed, and the expansion tank liquid level meets the set conditions.

[0057] Specifically, when the battery power (SOC) is less than 30%, exit the coolant filling mode;

[0058] When the vehicle enters the power-off procedure or the power supply is abnormal, exit the coolant filling mode;

[0059] When there is an operation input in the air conditioning system, it is determined that the user needs to use the air conditioner or the filling is completed, and exit the coolant filling mode;

[0060] When it is monitored that the vehicle speed is greater than 15 km / h and lasts for more than 10 seconds, it is judged that the filling operation is completed, and exit the coolant filling mode;

[0061] When the actual liquid level monitored by the expansion tank liquid level sensor is continuously higher than the lowest alarm liquid level for more than 30 minutes, it is judged that the filling operation is completed, and exit the coolant filling mode.

[0062] Compared with the prior art, the present invention designs a control strategy, which can be conveniently operated by the operator to turn on or off without additional special equipment; after being turned on, the electric water pump and the electronic water valve in the warm air system are controlled to operate according to a preset program to quickly discharge the air in the cooling system and fill it with coolant, making the filling process more convenient, fast and smooth; this strategy also has the determination of multiple exit conditions, which can effectively avoid problems such as the battery power being exhausted or affecting the air conditioning performance that may be caused by forgetting to operate and turn off.

[0063] Reference Figure 3 In this regard, the coolant filling control method provided by the embodiment of the present application is a coolant filling control strategy integrated on the vehicle, which can be turned on and off through the screen program or button operation; this control strategy has three parts: an entry strategy, an operation strategy, and an exit strategy, including the determination of opening conditions, user prompts, component control, fault diagnosis and processing, exit condition determination, etc., and can realize the logical closed-loop control of the operation of components during the coolant filling process.

[0064] Reference Figure 4 , Figure 4 shows the flowchart of the entry strategy. The entry strategy includes the opening strategy operation, the determination of opening conditions, and the opening result prompt.

[0065] Opening strategy operation: There is an option of "Coolant Filling Mode" in the tool menu of the central control large screen. The operator can click this option to implement the opening operation of the strategy. At this time, it will be judged according to the determination of opening conditions whether it successfully enters this strategy.

[0066] Opening result prompt: If the strategy is successfully opened, this option turns green, and a prompt "The mode has been opened. Do not operate the air conditioner before the filling is completed, otherwise the mode will exit" pops up, and at the same time, a successful sound effect prompt sounds; if the opening fails, a corresponding failure reason prompt will pop up (see the prompt content in the determination of opening conditions), and at the same time, a failure sound effect prompt sounds.

[0067] The enabling condition determination includes the judgment of the engine operating state, the power supply state of the warm air electric water pump, the power supply state of the warm air electronic water valve, the battery power judgment, and the operation state judgment of the air conditioning system. Among them, the judgment of the engine operating state, the power supply state of the warm air electric water pump, the power supply state of the warm air electronic water valve, and the battery power judgment must all meet the enabling conditions to be successfully enabled. The operation state judgment of the air conditioning system is an additional customer decision item. When the vehicle control unit monitors that the engine is in the stopped state, it is judged that the enabling conditions are met; otherwise, the central control large screen prompts "Please turn off the engine before performing this operation". When the vehicle control unit monitors that the power supply of the warm air electric water pump is normal, it is judged that the enabling conditions are met; otherwise, the central control large screen prompts "The power supply of the electric water pump is abnormal. Please check or contact the after-sales service". When the vehicle control unit monitors that the power supply of the warm air electronic water valve is normal, it is judged that the enabling conditions are met; otherwise, the central control large screen prompts "The power supply of the electronic water valve is abnormal. Please check or contact the after-sales service". When the vehicle control unit monitors that the battery power (SOC) is greater than 40%, it is judged that the enabling conditions are met; otherwise, the central control large screen prompts "The battery power is insufficient. Please charge first or connect an external stable power supply". When the vehicle control unit monitors that the air conditioning system is in the closed state, it is judged that the enabling conditions are met; otherwise, the central control large screen prompts "Running this mode will reduce the performance of the air conditioning system. Do you want to enable it?" and gives the options of "Yes" and "No", and then judges again according to the selection result: If "Yes" is selected, it is judged that the enabling conditions are met; otherwise, the mode is not enabled and no failure prompt message or prompt sound is given.

[0068] Reference Figure 5 , Figure 5 shows a flow chart of the operation strategy, and the operation strategy includes component control strategies and fault diagnosis and handling strategies, such as Figure 5 shown.

[0069] The component control strategy includes the control of the warm air electric water pump and the warm air electronic water valve. The control strategy of the warm air electric water pump includes two parts: speed control and operation cycle control. Among them: the speed control is based on a preset power-speed matrix table, and the speed of the electric water pump is controlled according to the different actual power consumed by the electric water pump in different stages of coolant filling, so as to achieve the best air discharge and coolant filling efficiency; the operation cycle control is based on the preset operation and stop time of the electric water pump to control the operation and stop of the electric water pump, which can effectively avoid the risk of pump damage caused by the long-term idling of the electric water pump that may occur in the early stage of filling or other unexpected situations. The control strategy of the warm air electronic water valve includes water valve opening control. In this mode, the water valve position is adjusted to connect all water circuits to ensure that coolant filling can be achieved in all parts of the system.

[0070] The fault diagnosis and handling strategy includes two parts: component fault diagnosis and handling, and vehicle fault diagnosis and handling. Among them: Component fault diagnosis and handling means that the vehicle controller collects and saves the fault codes reported after the electric water pump and electric water valve of the heater have faults, and compares them with the preset fault list to select the corresponding handling strategy for the fault. According to the type and severity of the fault, the handling strategies are mainly the following three: no handling, prompt fault information, prompt fault information and exit the filling strategy. Vehicle fault diagnosis and handling means that the vehicle controller collects the fault codes reported after other systems and components have faults, and compares them with the preset fault list to select the corresponding handling strategy for the fault.

[0071] Reference Figure 6 , Figure 6 shows the flowchart of the exit strategy. The exit strategy includes exit strategy operation, exit condition determination, and exit result prompt, as Figure 6 shown.

[0072] The exit strategy operation can be realized by the operator clicking the "Coolant Filling Mode" option in the tool menu of the central control large screen to exit the strategy.

[0073] Exit result prompt: When the strategy is exited through the central control large screen, this option changes from green to its original color, and a prompt "Filling mode has exited" pops up on the central control screen, and at the same time, a successful sound effect prompt sounds; when the strategy exits due to meeting a certain exit condition, a corresponding prompt pops up on the central control screen (see the exit condition determination for details), this option changes from green to its original color, and at the same time, a failure sound effect prompt sounds.

[0074] Exit condition determination includes battery power judgment, vehicle power supply status judgment, air conditioning system operation judgment, vehicle speed judgment, and expansion tank liquid level judgment. Meeting any of the above conditions will exit the filling strategy. The specific determination of the exit conditions is as follows: When the battery power (SOC) is less than 30%, the strategy exits, and a prompt "Insufficient battery power, filling mode has exited" is given; when the vehicle enters the power-off procedure or the power supply is abnormal, the strategy exits, and a prompt "Power supply is abnormal, filling mode has exited" is given; when there is an operation input in the air conditioning system, it is determined that the user needs to use the air conditioning or the filling has been completed, the strategy exits, and a prompt "Air conditioning adjustment operation is detected, filling mode exits" is given; when it is monitored that the vehicle speed is greater than 15 km / h and lasts for more than 10 seconds, it is judged that the filling operation has been completed, the strategy exits, and a prompt "Filling mode has exited" is given; when the actual liquid level monitored by the expansion tank liquid level sensor is continuously higher than the lowest alarm liquid level for more than 30 minutes, it is judged that the filling operation has been completed, the strategy exits, and a prompt "Filling mode has exited" is given.

[0075] The implementation of this application also provides a bus coolant filling control system, which includes a collection device and an information processing device. The following will explain them separately.

[0076] Collection device: used to obtain the engine operating state, the power supply state of the warm air electric water pump, the power supply state of the warm air electronic water valve, the battery power, and the operating state of the air conditioning system before coolant filling; during coolant filling, obtain the battery power, the vehicle power supply state, the air conditioning system operation, the vehicle speed, and the expansion tank liquid level; an information processing device, configured to determine whether to enter the coolant filling mode according to the obtained engine operating state, the power supply state of the warm air electric water pump, the power supply state of the warm air electronic water valve, the battery power, and the operating state of the air conditioning system; when entering the coolant filling mode, fill the coolant, and control the warm air electric water pump and the warm air electronic water valve during the filling process; when any of the obtained battery power, the vehicle power supply state, the air conditioning system operation, the vehicle speed, and the expansion tank liquid level meets the set conditions, exit the coolant filling mode.

[0077] Compared with the prior art, the present invention designs a control strategy, which can be conveniently operated by the operator to be turned on or off without additional special equipment; after being turned on, it controls the operation of the electric water pump and the electronic water valve in the warm air system according to a preset program to quickly discharge the air in the cooling system and fill it with coolant, making the filling process more convenient, fast and smooth; this strategy also has a variety of exit condition judgments, which can effectively avoid problems such as the battery power being exhausted or affecting the air conditioning performance that may be caused by forgetting to operate and turn off.

[0078] In a specific feasible implementation, the information processing device is further configured to control the speed of the electric water pump according to the different actual power consumption of the electric water pump in different stages of coolant filling; control the operation and stop of the electric water pump based on the preset operation and stop time of the electric water pump. For details, reference can be made to the description in the method.

[0079] It should be understood that the system provided in the embodiments of the present application can also execute any step in the above method. For details, reference can be made to the detailed description in the method, which will not be repeated here.

[0080] The embodiments of the present application also provide a vehicle, which includes a vehicle body and the passenger car coolant filling control system as described in any one of the above in the vehicle body. In the above technical solution, compared with the prior art, the present invention designs a control strategy, which can be conveniently operated by the operator to be turned on or off without additional special equipment; after being turned on, it controls the operation of the electric water pump and the electronic water valve in the warm air system according to a preset program to quickly discharge the air in the cooling system and fill it with coolant, making the filling process more convenient, fast and smooth; this strategy also has a variety of exit condition judgments, which can effectively avoid problems such as the battery power being exhausted or affecting the air conditioning performance that may be caused by forgetting to operate and turn off.

[0081] The embodiments of the present application further provide an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, it implements the method according to the second aspect and any possible design in the second aspect.

[0082] The embodiments of the present application further provide a non-transitory computer-readable storage medium, which stores computer instructions for causing a computer to execute the method according to the second aspect and any possible design in the second aspect.

[0083] The embodiments of the present application further provide a computer program product, including instructions which, when running on a computer, cause the computer to execute the method according to the second aspect and any possible design in the second aspect of the present application.

[0084] It should be noted that the method in one or more embodiments of this specification can be executed by a single device, such as a computer or a server. The method in this embodiment can also be applied to a distributed scenario and completed by multiple devices cooperating with each other. In such a distributed scenario, one of the multiple devices can only execute one or more steps of the method in one or more embodiments of this specification, and these multiple devices will interact with each other to complete the described method.

[0085] The specific embodiments of this specification are described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve the desired result. Additionally, the processes depicted in the figures do not necessarily require the particular order or sequential order shown to achieve the desired result. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0086] For convenience of description, when describing the above device, it is divided into various modules according to functions for description. Of course, when implementing one or more embodiments of this specification, the functions of each module can be implemented in the same or multiple software and / or hardware.

[0087] The device in the above embodiments is used to implement the corresponding method in the foregoing embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be elaborated herein.

[0088] Figure 5FIG. shows a more specific schematic diagram of the hardware structure of the electronic device provided in this embodiment. The device may include: a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. Among them, the processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040 are communicatively connected to each other inside the device through the bus 1050.

[0089] The processor 1010 can be implemented in a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, etc., and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0090] The memory 1020 can be implemented in the form of a ROM (Read Only Memory), a RAM (Random Access Memory), a static storage device, a dynamic storage device, etc. The memory 1020 can store an operating system and other application programs. When implementing the technical solutions provided in the embodiments of this specification through software or firmware, the relevant program codes are stored in the memory 1020 and are called and executed by the processor 1010.

[0091] The input / output interface 1030 is used to connect to an input / output module to achieve information input and output. The input / output module can be configured as a component in the device (not shown in the figure) or externally connected to the device to provide corresponding functions. Among them, the input device can include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output device can include a display, a speaker, a vibrator, an indicator light, etc.

[0092] The communication interface 1040 is used to connect to a communication module (not shown in the figure) to achieve communication interaction between this device and other devices. Among them, the communication module can communicate through a wired method (such as USB, network cable, etc.) or through a wireless method (such as a mobile network, WIFI, Bluetooth, etc.).

[0093] The bus 1050 includes a path for transmitting information between various components of the device (such as the processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040).

[0094] It should be noted that although the above device only shows the processor 1010, the memory 1020, the input / output interface 1030, the communication interface 1040, and the bus 1050, in the specific implementation process, the device may also include other components necessary for normal operation. In addition, those skilled in the art can understand that the above device may also only include the components necessary to implement the solution of the embodiments of this specification, and does not necessarily include all the components shown in the figure.

[0095] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. The information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette tapes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information accessible by a computing device.

[0096] Those of ordinary skill in the art should understand that: the discussion of any of the above embodiments is only exemplary, and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples; under the concept of the present disclosure, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of one or more embodiments of the present specification as described above, and they are not provided in detail for the sake of brevity.

[0097] In addition, for simplicity of explanation and discussion, and so as not to make one or more embodiments of this specification difficult to understand, well-known power / ground connections to integrated circuit (IC) chips and other components may or may not be shown in the provided drawings. Further, the devices may be shown in block diagram form in order to avoid making one or more embodiments of this specification difficult to understand, and this also takes into account the fact that details regarding the implementation of these block diagram devices are highly dependent on the platform on which one or more embodiments of this specification are to be implemented (i.e., these details should be fully within the understanding of those of ordinary skill in the art). In cases where specific details (such as circuits) are set forth to describe exemplary embodiments of the present disclosure, it will be apparent to those of ordinary skill in the art that one or more embodiments of this specification may be practiced without these specific details or with variations of these specific details. Accordingly, these descriptions should be regarded as illustrative rather than restrictive.

[0098] Although the present disclosure has been described in connection with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art based on the foregoing description. For example, other memory architectures (such as dynamic RAM (DRAM)) may be used with the embodiments discussed.

[0099] One or more embodiments of this specification are intended to cover all such alternatives, modifications, and variations that fall within the broad scope of the appended claims. Accordingly, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification shall be included within the scope of protection of the present disclosure.

Claims

1. A method for controlling the coolant filling of a passenger car, characterized in that, It includes the following steps: Obtain the engine operating status, the power supply status of the warm air electric water pump, the power supply status of the warm air electronic water valve, the battery power, and the operation status of the air conditioning system; Determine whether to enter the coolant filling mode according to the obtained engine operating status, the power supply status of the warm air electric water pump, the power supply status of the warm air electronic water valve, the battery power, and the operation status of the air conditioning system; When entering the coolant filling mode, fill the coolant and control the warm air electric water pump and the warm air electronic water valve during the filling process; Obtain the battery power, the vehicle power supply status, the air conditioning system operation, the vehicle speed, and the expansion tank liquid level; When any one of the obtained battery power, the vehicle power supply status, the air conditioning system operation, the vehicle speed, and the expansion tank liquid level meets the set conditions, exit the coolant filling mode; Among them, when entering the coolant filling mode, fill the coolant and control the warm air electric water pump and the warm air electronic water valve during the filling process; specifically: Control the rotation speed and operation cycle of the warm air electric water pump; Among them, the control of the rotation speed and operation cycle of the warm air electric water pump; specifically includes: controlling the rotation speed of the electric water pump according to the different actual power consumption of the electric water pump in different stages of coolant filling; Control the operation and stop of the electric water pump based on the preset operation and stop time of the electric water pump; Among them, when any one of the obtained battery power, the vehicle power supply status, the air conditioning system operation, the vehicle speed, and the expansion tank liquid level meets the set conditions, exit the coolant filling mode; specifically includes: When the battery power is less than 30%, exit the coolant filling mode; When the vehicle enters the power-off procedure or the power supply is abnormal, exit the coolant filling mode; When there is an operation input in the air conditioning system, it is determined that the user needs to use the air conditioning or the filling is completed, and exit the coolant filling mode; When it is monitored that the vehicle speed is greater than 15 km / h and lasts for more than 10 seconds, it is determined that the filling operation is completed and exit the coolant filling mode; When the actual liquid level monitored by the expansion tank liquid level sensor is continuously higher than the lowest alarm liquid level for more than 30 minutes, it is determined that the filling operation is completed and exit the coolant filling mode.

2. The coolant filling control method for a passenger car according to claim 1, wherein It also includes: When entering the coolant filling mode, fill the coolant and detect vehicle faults.

3. The coolant filling control method for a passenger car according to claim 2, wherein When entering the coolant filling mode, fill the coolant and detect vehicle faults includes: Collect and save the first fault code reported after the warm air electric water pump and the warm air electronic water valve malfunction through the vehicle controller, compare the first fault code with the preset fault list, and select according to the comparison result: do not handle, prompt the fault information, prompt the fault information and exit the filling strategy.

4. The bus coolant filling control method according to claim 3, characterized in that, When entering the coolant filling mode, fill the coolant and detect vehicle faults also includes: Collect the second fault code reported after other systems and components malfunction through the vehicle controller, compare the second fault code with the preset fault list, and select according to the comparison result: do not handle, prompt the fault information, prompt the fault information and exit the filling strategy.

5. A coolant filling control system for a passenger car, characterized in that, It includes: Acquisition device: used to obtain the engine operating status, the power supply status of the warm air electric water pump, the power supply status of the warm air electronic water valve, the battery power, and the operation status of the air conditioning system before coolant filling; During the coolant filling process, obtain the battery power, vehicle power supply status, air conditioning system operation, vehicle speed, and expansion tank liquid level. An information processing device for determining whether to enter the coolant filling mode based on the obtained engine operating status, warm air electric water pump power supply status, warm air electronic water valve power supply status, battery power, and air conditioning system operating status; when entering the coolant filling mode, fill the coolant and control the warm air electric water pump and warm air electronic water valve during the filling process; when any of the obtained battery power, vehicle power supply status, air conditioning system operation, vehicle speed, and expansion tank liquid level meets the set conditions, exit the coolant filling mode. Wherein, the information processing device is specifically used for: Controlling the rotation speed and operation cycle of the warm air electric water pump. Wherein, the information processing device is further specifically used for: Controlling the rotation speed of the electric water pump according to the different actual power consumption of the electric water pump in different stages of coolant filling. Controlling the operation and stop of the electric water pump based on the preset operation and stop time of the electric water pump. Wherein, the information processing device is specifically further used for: When the battery power is less than 30%, exit the coolant filling mode. When the vehicle enters the power-off procedure or the power supply is abnormal, exit the coolant filling mode. When there is an operation input in the air conditioning system, it is determined that the user needs to use the air conditioning or the filling has been completed, and exit the coolant filling mode. When it is monitored that the vehicle speed is greater than 15 km / h and lasts for more than 10 seconds, it is determined that the filling operation has been completed, and exit the coolant filling mode. When the actual liquid level monitored by the expansion tank liquid level sensor is continuously higher than the lowest alarm liquid level for more than 30 minutes, it is determined that the filling operation has been completed, and exit the coolant filling mode.

6. A vehicle, characterized in that, It includes a vehicle body and the bus coolant filling control system as described in claim 5 provided in the vehicle body.

7. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the bus coolant filling control method as described in any one of claims 1 to 4.

8. A non-transitory computer-readable storage medium, characterized in that, The non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to cause the computer to execute the bus coolant filling control method as described in any one of claims 1 to 4.

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