Control method and terminal device of vehicle heating system

Abstract

This invention relates to the field of vehicle heating control technology, and provides a control method and terminal device for a vehicle heating system. The method includes: when the engine is detected to be running and the heating is turned on, controlling the heating solenoid valve to open, connecting the heating branch circuit, achieving rapid warm-up, and reducing fuel consumption; when the engine is detected to be running but the heating is not turned on, collecting the temperature detected by the water temperature sensor, and controlling the on / off state of the heating solenoid valve according to the temperature of the water temperature sensor and a preset water temperature sensor temperature limit, thereby realizing intelligent control of the flow of coolant in the vehicle engine under different operating conditions, enabling the engine to achieve rapid warm-up or rapid cooling, preventing engine cylinder scoring or scrapping, extending engine life, and improving user experience.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle heating control, and in particular relates to a control method and terminal equipment of a vehicle heating system. Background Art

[0002] At present, as long as the vehicle's engine is running, the water for the vehicle's heating branch is taken from the engine, flows through the heating core, and then enters the engine's water pump again, and the cycle continues.

[0003] During the engine warm-up process, the water pump drives the engine coolant from the water jacket inside the engine through the heater core back to the water pump. Since the circulating water in this heater branch continuously takes away the engine heat, the engine coolant temperature rises slowly, resulting in a long warm-up time.

[0004] When the engine is running at high speed and high load, the engine generates a lot of heat and needs a large amount of cooling water to flow through the radiator for dissipation. However, the heater core will continuously divert the coolant, resulting in insufficient cooling water flowing through the radiator. The radiator's heat dissipation capacity is poor, and the engine coolant temperature drops slowly, which can lead to failures such as engine seizure or scrapping. Summary of the invention

[0005] In view of this, an embodiment of the present invention provides a control method and terminal device for a vehicle heating system, aiming to solve the problem in the prior art that the engine warm-up time is long or the engine coolant temperature is slow to decrease, which may lead to engine failure such as cylinder seizure or scrapping.

[0006] To achieve the above-mentioned purpose, a first aspect of an embodiment of the present invention provides a control method for a vehicle heating system, wherein a heating solenoid valve is arranged between an engine and a heating core in a heating branch of the vehicle heating system, and the control method for the vehicle heating system comprises:

[0007] When it is detected that the engine is turned on and the heater is turned on, the heater solenoid valve is controlled to be turned on and the heater branch is connected;

[0008] When it is detected that the engine is turned on and the heater is not turned on, the temperature detected by the water temperature sensor is collected, and the switching state of the heater solenoid valve is controlled according to the temperature of the water temperature sensor and the preset water temperature sensor temperature limit; the water temperature sensor is connected to the engine and is used to collect the temperature of the cooling water in the engine.

[0009] As another embodiment of the present application, when it is detected that the engine is turned on and the heater is turned on, the heater solenoid valve is controlled to be turned on and the heater branch is connected, including:

[0010] When it is detected that the engine is turned on and the heater is turned on, the heater solenoid valve is controlled to be in a closed state, and after the heater solenoid valve is controlled to be closed for a first preset time, the heater solenoid valve is controlled to be opened, and the heater branch is connected.

[0011] As another embodiment of the present application, when it is detected that the engine is turned on and the heater is not turned on, the temperature detected by the water temperature sensor is collected, and the switch state of the heater solenoid valve is controlled according to the temperature of the water temperature sensor and a preset water temperature sensor temperature limit, including:

[0012] When the heating solenoid valve is in the closed state and the thermostat is in the closed state, the temperature T detected by the water temperature sensor is collected. 温1 ; The thermostat is connected to the cooling water outlet of the engine to control the flow rate of the cooling water outlet;

[0013] When T 温1 <T 温限1 When the heating solenoid valve is controlled to be in a closed state;

[0014] Among them, T 温限1 The temperature of the engine cylinder head detected by the water temperature sensor when the coolant in the engine reaches the limit temperature when the coolant in the engine has zero flow

[0015] As another embodiment of the present application, when it is detected that the engine is turned on and the heater is not turned on, the temperature detected by the water temperature sensor is collected, and the switch state of the heater solenoid valve is controlled according to the temperature of the water temperature sensor and a preset water temperature sensor temperature limit, including:

[0016] When the thermostat is in the closed state, the temperature T of the current water temperature sensor is collected. 温2 ;

[0017] When the thermostat is turned on and has not reached the fully open state, the temperature T corresponding to the current opening of the thermostat corresponding to the current water temperature sensor is collected. 节1 ;

[0018] When T 温限1 ≤T 温2 ≤T 节1 When the duty cycle output signal is continuously increased, the opening state of the warm air solenoid valve is gradually adjusted.

[0019] As another embodiment of the present application, the step of gradually adjusting the opening state of the warm air solenoid valve according to the duty cycle output signal continuously increasing includes:

[0020] According to Y=K(T 温2 -T 温限1 ) determine the duty cycle; wherein Y represents the duty cycle, and K represents the adjustment coefficient;

[0021] The opening state of the warm air solenoid valve is gradually adjusted according to the output signal corresponding to the duty cycle.

[0022] As another embodiment of the present application, when it is detected that the engine is turned on and the heater is not turned on, the temperature detected by the water temperature sensor is collected, and the switch state of the heater solenoid valve is controlled according to the temperature of the water temperature sensor and a preset water temperature sensor temperature limit, including:

[0023] When the thermostat is in the fully open state, the temperature T of the current water temperature sensor is collected. 温3 ;

[0024] When T 温3 ≥(T 温限2 -P), controlling the heating solenoid valve to be turned off;

[0025] Among them, T 温限2 is the temperature of the engine cylinder head detected by the water temperature sensor when the coolant in the engine circulates in the heating mass and the cooling branch and reaches the use limit temperature, and T 温限2 >T 节2 , T 节2 It is the temperature of the thermostat when it is fully opened detected by the water temperature sensor, and P is the preset temperature.

[0026] A second aspect of an embodiment of the present invention provides a control device for a vehicle heating system, wherein a heating solenoid valve is arranged between an engine and a heating core in a heating branch of the vehicle heating system, and comprises:

[0027] A control module, for controlling the heating solenoid valve to open and connect the heating branch when detecting that the engine is turned on and the heating is turned on;

[0028] A collection module, used to collect the temperature detected by the water temperature sensor when it is detected that the engine is turned on and the heater is not turned on;

[0029] As another embodiment of the present application, the control module is also used to control the switching state of the warm air solenoid valve according to the temperature of the water temperature sensor and a preset water temperature sensor temperature limit; the water temperature sensor is connected to the engine to collect the temperature of the cooling water in the engine.

[0030] The control module is used to control the warm air solenoid valve to be in a closed state when it is detected that the engine is turned on and the warm air is turned on, and after controlling the warm air solenoid valve to be closed for a first preset time, control the warm air solenoid valve to be opened and the warm air branch is connected.

[0031] A third aspect of an embodiment of the present invention provides a terminal device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the steps of the method for controlling a vehicle heating system as described in any of the above embodiments are implemented.

[0032] A fourth aspect of an embodiment of the present invention provides a computer-readable storage medium, comprising: the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the vehicle heating system control method as described in any of the above embodiments are implemented.

[0033] The beneficial effects of the embodiments of the present invention compared with the prior art are as follows: compared with the prior art, the present invention controls the heater solenoid valve to open and connect the heater branch when it is detected that the engine is turned on and the heater is turned on, thereby achieving rapid warm-up and reducing fuel consumption; when it is detected that the engine is turned on and the heater is not turned on, the temperature detected by the water temperature sensor is collected, and the switching state of the heater solenoid valve is controlled according to the temperature of the water temperature sensor and the preset water temperature sensor temperature limit, thereby realizing intelligent control of the flow of cooling water in the vehicle engine under different operating conditions, so that the engine can be quickly warmed up or cooled down, preventing engine failures such as cylinder seizure or scrapping, extending the engine life, and improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0035] Figure 1 is a schematic diagram of an implementation flow of a method for controlling a vehicle heating system provided by an embodiment of the present invention;

[0036] Figure 2 is a schematic diagram of a vehicle heating system provided by an embodiment of the present invention;

[0037] Figure 3 is a schematic diagram of a warm air solenoid valve performing duty cycle opening provided by an embodiment of the present invention;

[0038] Figure 4 is an example diagram of a control device for a vehicle heating system provided by an embodiment of the present invention;

[0039] Figure 5 It is a schematic diagram of a terminal device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0040] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0041] In order to illustrate the technical solution of the present invention, a specific embodiment is provided below for illustration.

[0042] Figure 1 A schematic diagram of a control method for a vehicle heating system according to an embodiment of the present invention is described in detail as follows. Figure 2 The figure shows a vehicle heating system, including a heating branch and a cooling branch. In the embodiment of the present invention, a heating solenoid valve is arranged between the engine and the heating core in the heating branch of the vehicle heating system, and then the heating core is connected to the engine after being connected to a water pump to form a heating branch; in the cooling branch, the engine is connected to the thermostat and then to the water pump through the radiator to communicate with the heating branch.

[0043] Among them, the water pump continuously inputs coolant with a certain pressure into the engine, ensuring that the coolant flows and circulates inside the engine, taking away the heat generated by the engine combustion.

[0044] The thermostat is connected to the cooling water outlet of the engine to control the cooling water outlet flow. When the engine is in the warm-up state and under low load conditions, the engine is controlled to flow in a small range, which is conducive to rapid engine warm-up and reduced fuel consumption.

[0045] The radiator is used to dissipate the heat of the cooling water flowing out of the thermostat. The low-temperature coolant flowing out of the radiator enters the water pump again and participates in the engine cooling system circulation, continuously taking away the heat generated by the engine operation.

[0046] The heater solenoid valve controls the on and off of the coolant in the heater branch, and is also responsible for feeding back the working status (on or off) to the Electronic Control Unit (ECU), receiving the operating instructions issued by the ECU, and executing specific actions. The coolant flowing out of the heater solenoid valve enters the heater core to provide a heat source for the vehicle heater; the coolant flowing out of the heater core enters the water pump again to participate in the engine cooling system circulation.

[0047] The engine speed sensor is used to detect the engine speed and transmit it to the ECU.

[0048] The water temperature sensor is installed near the coolant outlet of the engine to detect the temperature of the coolant flowing out of the engine and transmit it to the ECU.

[0049] The control method of the vehicle heating system includes the following steps.

[0050] Step 101, when it is detected that the engine is turned on and the heater is turned on, the heater solenoid valve is controlled to be turned on and the heater branch is connected.

[0051] The heater solenoid valve is in the normally closed (disconnected) state and will only open when it receives the on command from the ECU.

[0052] In this step, the driver starts the engine and turns on the heater. After the ECU receives the vehicle heater switch on signal, after a first preset time, when the cooling water temperature in the engine rises slightly, an opening command is sent to the heater solenoid valve, and the heater solenoid valve is controlled to open according to the opening command. The heater branch is connected, the heater core quickly increases the coolant water temperature, increases the heater outlet temperature, and improves passenger comfort.

[0053] Optionally, when it is detected that the engine is turned on and the heater is turned on, the heater solenoid valve is controlled to be in a closed state, and after controlling the heater solenoid valve to be closed for a first preset time, the heater solenoid valve is controlled to be opened, and the heater branch is connected, that is, the opening command of the solenoid valve can be issued after the solenoid valve is closed for a period of time, or the opening command can be issued first and then the solenoid valve is closed for a period of time. In this embodiment, the time for issuing the opening command of the solenoid valve is not limited.

[0054] Optionally, the first time can be set according to demand, for example, the first time can be 1 minute, 2 minutes, etc., and the value of the first time is not limited in this embodiment.

[0055] Step 102, when it is detected that the engine is turned on and the heater is not turned on, the temperature detected by the water temperature sensor is collected, and the switching state of the heater solenoid valve is controlled according to the temperature of the water temperature sensor and the preset water temperature sensor temperature limit; the water temperature sensor is connected to the engine and is used to collect the temperature of the cooling water in the engine.

[0056] In this step, after the driver starts the engine, the heater is not turned on. At this time, the thermostat connected to the engine is not turned on, the heater solenoid valve is in a closed state, and the coolant flow in the water jacket of the engine is zero.

[0057] Optionally, when the heating solenoid valve is in a closed state and the thermostat is in a closed state, the temperature T detected by the water temperature sensor is collected. 温1 ;

[0058] When T 温1 <T 温限1When the ECU sends a shutdown command to the warm air solenoid valve, the warm air solenoid valve remains in the closed state according to the shutdown command.

[0059] Among them, T 温限1 The temperature of the engine cylinder head detected by the water temperature sensor when the coolant in the engine has reached the limit temperature when the flow rate is zero. 温限1 ≤T 节1 , T 节1 When the thermostat is opened but not fully opened, the current water temperature sensor collects the temperature corresponding to the current opening of the thermostat.

[0060] Optionally, when the engine is in the on state, the temperature of the coolant in the engine gradually rises, and when the thermostat is in the off state, the temperature T of the current water temperature sensor is collected. 温2 ;

[0061] When the thermostat is turned on and has not reached the fully open state, the temperature T corresponding to the current opening of the thermostat corresponding to the current water temperature sensor is collected. 节1 ;

[0062] When T 温限1 ≤T 温2 ≤T 节1 When the duty cycle output signal is continuously increased, the opening state of the heating solenoid valve is gradually adjusted to achieve rapid warm-up and reduce fuel consumption.

[0063] Optional, such as Figure 3 The schematic diagram of the heating solenoid valve performing duty cycle opening is shown in FIG. 1 , where the horizontal axis is temperature and the vertical axis is the heating solenoid valve on-time duty cycle. When the opening state of the heating solenoid valve is gradually adjusted according to the increasing duty cycle output signal, according to Y=K(T 温2 -T 温限1 ) determines the duty cycle; wherein, Y represents the duty cycle, and K represents the adjustment coefficient; the opening state of the warm air solenoid valve is gradually adjusted according to the output signal corresponding to the duty cycle. It should be noted that K is a coefficient obtained through experiments during development, which is a variable. Figure 3 The straight line in the figure is just a schematic diagram of the opening trend, which can be a curve in real situation.

[0064] The working principle of the duty cycle controlled heater solenoid valve is to adjust the duty cycle signal to change the output voltage, drive the power device to control the heater solenoid valve current, and thus change the heater solenoid valve lift.

[0065] Optionally, when the thermostat is opened wider and wider until it is fully open, the current water temperature sensor temperature T is collected. 温3 ;

[0066] When T 温3 ≥(T 温限2 -P), the heater solenoid valve is controlled to be turned off; that is, the ECU sends a shut-down command to the heater solenoid valve, and the heater solenoid valve remains in the shut-down state according to the shut-down command.

[0067] Among them, T 温限2 is the temperature of the engine cylinder head detected by the water temperature sensor when the coolant in the engine circulates in the heating mass and the cooling branch and reaches the use limit temperature, and T 温限2 >T 节2 , T 节2 It is the temperature of the thermostat when it is fully opened detected by the water temperature sensor, and P is the preset temperature.

[0068] Optionally, P can be a variable, which can change according to the actual situation later, indicating that T is about to be reached. 温限2 Disconnect the heater solenoid valve before the engine is turned on, so that the coolant flowing out of the engine will not go through the heater branch, but will flow into the cooling branch, and be cooled by the radiator to prevent the engine from overheating, which may cause malfunctions such as engine seizure or engine failure.

[0069] The control method of the vehicle heating system mentioned above controls the heating solenoid valve to open and connect the heating branch when it is detected that the engine is turned on and the heating is turned on, thereby realizing rapid warm-up and reducing fuel consumption; when it is detected that the engine is turned on and the heating is not turned on, the temperature detected by the water temperature sensor is collected, and the switching state of the heating solenoid valve is controlled according to the temperature of the water temperature sensor and the preset water temperature sensor temperature limit, thereby realizing intelligent control of the flow of cooling water in the vehicle engine under different engine operating conditions, so that the engine can be quickly warmed up and fuel consumption can be reduced, and under high-speed and high-load engine operating conditions, the radiator is used for rapid cooling to prevent the engine from overheating, resulting in engine failures such as cylinder pulling or scrapping, thereby extending the engine life and improving user experience.

[0070] It should be understood that the order of execution of the steps in the above embodiment does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present invention.

[0071] Corresponding to the control method of the vehicle heating system described in the above embodiment, Figure 4 An example diagram of a control device for a vehicle heating system provided by an embodiment of the present invention is shown, wherein Figure 2 As shown in FIG. 1 , a heating solenoid valve is arranged between the engine and the heating core in the heating branch of the vehicle heating system. Figure 4 As shown, the device may include: a control module 401 and a collection module 402 .

[0072] The control module 401 is used to control the heating solenoid valve to open and connect the heating branch when it is detected that the engine is turned on and the heating is turned on;

[0073] The acquisition module 402 is used to acquire the temperature detected by the water temperature sensor when it is detected that the engine is turned on and the heater is not turned on;

[0074] The control module 401 is also used to control the switching state of the warm air solenoid valve according to the temperature of the water temperature sensor and the preset water temperature sensor temperature limit; the water temperature sensor is connected to the engine and is used to collect the temperature of the cooling water in the engine.

[0075] Optionally, the control module 401 is used to control the heater solenoid valve to be in a closed state when it is detected that the engine is turned on and the heater is turned on, and after controlling the heater solenoid valve to be closed for a first preset time, control the heater solenoid valve to be opened and the heater branch is connected.

[0076] Optionally, when the heating solenoid valve is in a closed state and the thermostat is in a closed state, the acquisition module 402 is used to collect the temperature T detected by the water temperature sensor. 温1 ; The thermostat is connected to the cooling water outlet of the engine to control the flow rate of the cooling water outlet;

[0077] When T 温1 <T 温限1 When the control module 401 is used to control the heating solenoid valve to be in an off state;

[0078] Among them, T 温限1 The temperature of the engine cylinder head detected by the water temperature sensor when the coolant in the engine has reached the limit temperature when the flow rate is zero. 温限1 ≤T 节1 , T 节1 When the thermostat is opened but not fully opened, the current water temperature sensor collects the temperature corresponding to the current opening of the thermostat.

[0079] Optionally, when the thermostat is in the closed state, the acquisition module 402 is used to acquire the temperature T of the current water temperature sensor. 温2 ;

[0080] When the thermostat is turned on and has not reached the fully open state, the acquisition module 402 is used to collect the temperature T of the current opening of the thermostat corresponding to the current water temperature sensor. 节1 ;

[0081] When T 温限1 ≤T 温2 ≤T 节1When the duty cycle output signal is continuously increased, the control module 401 is used to gradually adjust the opening state of the warm air solenoid valve.

[0082] Optionally, the control module 401 is used to 温2 -T 温限1 ) determines the duty cycle; wherein Y represents the duty cycle, K represents the adjustment coefficient; and gradually adjusts the opening state of the warm air solenoid valve according to the output signal corresponding to the duty cycle.

[0083] Optionally, when the thermostat is in the fully open state, the acquisition module 402 is used to collect the temperature T of the current water temperature sensor. 温3 ;

[0084] When T 温3 ≥(T 温限2 -P), the control module 401 is used to control the heating solenoid valve to be turned off;

[0085] Among them, T 温限2 is the temperature of the engine cylinder head detected by the water temperature sensor when the coolant in the engine circulates in the heating mass and the cooling branch and reaches the use limit temperature, and T 温限2 >T 节2 , T 节2 It is the temperature of the thermostat when it is fully opened detected by the water temperature sensor, and P is the preset temperature.

[0086] The control device of the vehicle heating system is configured to control the heating solenoid valve to open and connect the heating branch when it is detected that the engine is turned on and the heating is turned on, thereby achieving rapid warm-up and reducing fuel consumption. When it is detected that the engine is turned on and the heating is not turned on, the acquisition module is used to acquire the temperature detected by the water temperature sensor. According to the temperature of the water temperature sensor and the preset water temperature sensor temperature limit, the control module controls the switching state of the heating solenoid valve, thereby realizing intelligent control of the flow of cooling water in the vehicle engine under different engine operating conditions, so that the engine can be quickly warmed up and fuel consumption can be reduced. Under high-speed and high-load engine operating conditions, the radiator is used to quickly cool down the engine to prevent overheating of the engine, which may cause engine failures such as cylinder pulling or scrapping, thereby extending the engine life and improving user experience.

[0087] Figure 5 Schematic diagram of a terminal device provided by an embodiment of the present invention. Figure 5As shown, the terminal device 500 of this embodiment includes: a processor 501, a memory 502, and a computer program 503 stored in the memory 502 and executable on the processor 501, such as a control program for a vehicle heating system. When the processor 501 executes the computer program 503, the steps in the above-mentioned vehicle heating system control method embodiment are implemented, such as Figure 1 In steps 101 to 102 shown, the processor 501 implements the functions of each module in the above-mentioned device embodiments when executing the computer program 503, for example Figure 4 Functions of modules 401 to 402 are shown.

[0088] Exemplarily, the computer program 503 may be divided into one or more program modules, which are stored in the memory 502 and executed by the processor 501 to complete the present invention. The one or more program modules may be a series of computer program instruction segments that can complete specific functions, and the instruction segments are used to describe the execution process of the computer program 503 in the control device or terminal device 500 of the vehicle heating system. For example, the computer program 503 may be divided into a control module 401 and a collection module 402, and the specific functions of each module are as follows: Figure 4 As shown, no further description is given here.

[0089] The terminal device 500 may be a computing device such as a desktop computer, a notebook, a PDA, or a cloud server. The terminal device may include, but is not limited to, a processor 501 and a memory 502. Those skilled in the art will appreciate that Figure 5 It is only an example of the terminal device 500 and does not constitute a limitation of the terminal device 500. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the terminal device may also include input and output devices, network access devices, buses, etc.

[0090] The processor 501 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0091] The memory 502 may be an internal storage unit of the terminal device 500, such as a hard disk or memory of the terminal device 500. The memory 502 may also be an external storage device of the terminal device 500, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the terminal device 500. Further, the memory 502 may also include both an internal storage unit of the terminal device 500 and an external storage device. The memory 502 is used to store the computer program and other programs and data required by the terminal device 500. The memory 502 may also be used to temporarily store data that has been output or is to be output.

[0092] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0093] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0094] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0095] In the embodiments provided by the present invention, it should be understood that the disclosed devices / terminal equipment and methods can be implemented in other ways. For example, the device / terminal equipment embodiments described above are only schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0096] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0097] 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. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0098] If the integrated module / unit is implemented in the form of 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 present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. . Wherein, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0099] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A method for controlling a vehicle heating system, characterized in that: A heating solenoid valve is arranged between the engine and the heating core in a heating branch of a vehicle heating system, and a control method of the vehicle heating system includes: When it is detected that the engine is turned on and the heater is turned on, the heater solenoid valve is controlled to be turned on and the heater branch is connected; When it is detected that the engine is turned on and the heater is not turned on, the temperature detected by the water temperature sensor is collected, and the switch state of the heater solenoid valve is controlled according to the temperature of the water temperature sensor and the preset water temperature sensor temperature limit; the water temperature sensor is connected to the engine and is used to collect the temperature of the cooling water in the engine; Wherein, when it is detected that the engine is turned on and the heater is not turned on, the temperature detected by the water temperature sensor is collected, and the switch state of the heater solenoid valve is controlled according to the temperature of the water temperature sensor and the preset water temperature sensor temperature limit, including: When the thermostat is in the closed state, collect the current temperature T of the water temperature sensor 温2 ; The thermostat is connected to the cooling water outlet of the engine to control the flow rate of the cooling water outlet; When the thermostat is turned on and has not reached the fully open state, the temperature T corresponding to the current opening of the thermostat corresponding to the current water temperature sensor is collected. 节1 ; When T 温限1 ≤T 温2 ≤T 节1 When Y=K(T 温2 -T 温限1 ) determines the duty cycle; wherein Y represents the duty cycle, K represents the adjustment coefficient; T 温限1 The temperature of the engine cylinder head detected by the water temperature sensor when the coolant in the engine has reached the use limit temperature when the flow rate is zero; The opening state of the warm air solenoid valve is gradually adjusted according to the output signal corresponding to the duty cycle.

2. The control method of the vehicle heating system according to claim 1, characterized in that: When it is detected that the engine is turned on and the heating is turned on, the heating solenoid valve is controlled to be turned on and the heating branch is connected, including: When it is detected that the engine is turned on and the heater is turned on, the heater solenoid valve is controlled to be in a closed state, and after the heater solenoid valve is controlled to be closed for a first preset time, the heater solenoid valve is controlled to be opened, and the heater branch is connected.

3. The control method of the vehicle heating system according to claim 1 or 2, characterized in that: When it is detected that the engine is turned on and the heater is not turned on, the temperature detected by the water temperature sensor is collected, and the switch state of the heater solenoid valve is controlled according to the temperature of the water temperature sensor and a preset water temperature sensor temperature limit, including: When the heating solenoid valve is in the closed state and the thermostat is in the closed state, the temperature T detected by the water temperature sensor is collected. 温1 ; When T 温1 <T 温限1 When the heating solenoid valve is in a closed state.

4. The control method of the vehicle heating system according to claim 3, characterized in that: When it is detected that the engine is turned on and the heater is not turned on, the temperature detected by the water temperature sensor is collected, and the switch state of the heater solenoid valve is controlled according to the temperature of the water temperature sensor and a preset water temperature sensor temperature limit, including: When the thermostat is in the fully open state, the temperature T of the current water temperature sensor is collected. 温3 ; When T 温3 ≥(T 温限2 -P), controlling the heating solenoid valve to be turned off; Among them, T 温限2 is the temperature of the engine cylinder head detected by the water temperature sensor when the coolant in the engine circulates in the heating mass and the cooling branch and reaches the use limit temperature, and T 温限2 >T 节2 , T 节2 It is the temperature of the thermostat when it is fully opened detected by the water temperature sensor, and P is the preset temperature.

5. A control device for a vehicle heating system, characterized in that: A heating solenoid valve is arranged between the engine and the heating core in the heating branch of the vehicle heating system, including: A control module, for controlling the heating solenoid valve to open and connect the heating branch when detecting that the engine is turned on and the heating is turned on; A collection module, used to collect the temperature detected by the water temperature sensor when it is detected that the engine is turned on and the heater is not turned on; The control module is also used to control the switch state of the warm air solenoid valve according to the temperature of the water temperature sensor and the preset water temperature sensor temperature limit; the water temperature sensor is connected to the engine and is used to collect the temperature of the cooling water in the engine. When it is detected that the engine is turned on and the heater is not turned on, the control module is specifically used to: When the thermostat is in the closed state, collect the current temperature T of the water temperature sensor 温2 ; The thermostat is connected to the cooling water outlet of the engine to control the flow rate of the cooling water outlet; When the thermostat is turned on and has not reached the fully open state, the temperature T corresponding to the current opening of the thermostat corresponding to the current water temperature sensor is collected. 节1 ; When T 温限1 ≤T 温2 ≤T 节1 When Y=K(T 温2 -T 温限1 ) determines the duty cycle; wherein Y represents the duty cycle, K represents the adjustment coefficient; T 温限1 The temperature of the engine cylinder head detected by the water temperature sensor when the coolant in the engine has reached the use limit temperature when the flow rate is zero; The opening state of the warm air solenoid valve is gradually adjusted according to the output signal corresponding to the duty cycle.

6. The control device for the vehicle heating system according to claim 5, characterized in that: The control module is used to control the warm air solenoid valve to be in a closed state when it is detected that the engine is turned on and the warm air is turned on, and after controlling the warm air solenoid valve to be closed for a first preset time, control the warm air solenoid valve to be opened and the warm air branch is connected.

7. A terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 4 are implemented.

8. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 4 are implemented.

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