Control system and method for automobile warm air three-way water valve and storage medium

Abstract

The invention discloses a control system and method for an automobile warm air three-way water valve and a storage medium. The control system comprises an automobile parameter and signal acquisition module, a three-way water valve judgment and calculation module and a three-way water valve control execution module. The vehicle parameter and signal acquisition module is used for acquiring vehicle hardware parameters and vehicle state signals; the three-way water valve judging and calculating module is used for receiving the vehicle hardware parameters and the vehicle state signals, judging whether air conditioner heating or battery heating is conducted or not according to the vehicle state signals, and calculating three-way water valve control parameters according to the vehicle hardware parameters and the vehicle state signals. The three-way water valve control execution module is used for receiving the three-way water valve control parameters and controlling a three-way water valve according to the three-way water valve control parameters, and the air conditioner heating or battery heating requirement is met. The heating requirement of a vehicle in winter or in a low-temperature environment can be met, the heat use efficiency of an engine is improved, and the service life of the engine is prolonged; stable water temperature at the inlet of the warm air core and stable temperature at the air outlet of the air conditioner are ensured

Description

Technical Field

[0001] The present invention relates to the technical field of thermal management control of new energy vehicles, and in particular to a control system, method and storage medium for a three-way water valve for a vehicle heater. Background Art

[0002] With the rapid development of technology, hybrid vehicles, thanks to their energy-saving and environmentally friendly advantages, are increasingly becoming the preferred choice for many families. Thermal management control, as one of the core technologies of hybrid vehicles, has a crucial impact on vehicle performance and user experience. Winter air conditioning, heating, and battery heating are particularly crucial to user comfort and vehicle performance. Heater valve control, from the engine cooling circuit to the heating circuit, is a key component of the hybrid vehicle thermal management system, and its performance directly determines the effectiveness of the vehicle's air conditioning, heating, and battery heating functions.

[0003] At present, vehicles generally adopt a thermal management method that controls the opening and closing of a three-way water valve based on the engine water temperature, that is, the water valve is opened when the water temperature is within the applicable range, and closed when the water temperature is too high. However, the existing technology has many shortcomings: First, the engine water temperature can usually reach 90-110°C, but the inlet temperature of the air conditioner heater core is required to be about 60°C. If the water valve is fully opened, it is impossible to accurately control the overheated engine coolant passing through the heater core, which can easily cause the air outlet temperature of the air conditioner box to be too high, causing user complaints; second, relying solely on the opening and closing of the water valve to adjust the inlet temperature of the heater core will cause the water temperature at the inlet of the heater core to be unstable, causing the temperature deviation of the air conditioner outlet to reach 10°C, causing user dissatisfaction, and closing the water valve in advance to prevent the battery from overheating will weaken the battery heating effect; third, in - In a low-temperature environment below 15°C, changes in engine operating conditions such as acceleration and deceleration, and going up and down hills while the vehicle is driving will cause fluctuations in the engine water temperature, which in turn will cause the water temperature in the heater core inlet to fluctuate by as much as 15°C, making the air-conditioning outlet temperature unstable with a fluctuation range of up to 5°C. The outlet air temperature changes significantly, seriously affecting the user experience; fourthly, when the engine is started in a low-temperature environment, the mixing damper mixes the external cold air, causing the engine heat to be consumed by the air conditioner and not fully utilized, which not only reduces the engine heat utilization rate, but also prolongs the vehicle warm-up time. If the vehicle is driven when the engine water temperature is insufficient, it will also shorten the engine service life. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the above-mentioned background technology and provide a control system, method and storage medium for a car heater three-way water valve that meets the heating needs of cars used in winter or low-temperature environments, improves the engine's heat utilization efficiency, and increases the engine's service life; during the process of vehicle acceleration and deceleration or going up and down hills, ensures the stability of the water temperature at the heater core inlet and the stability of the air conditioning outlet temperature, thereby improving user comfort.

[0005] To achieve this purpose, the control system of the automobile heater three-way water valve designed in the present invention includes a vehicle parameter and signal acquisition module, a three-way water valve judgment and calculation module and a three-way water valve control execution module; the vehicle parameter and signal acquisition module is used to collect vehicle hardware parameters and vehicle status signals; the three-way water valve judgment and calculation module is used to receive the vehicle hardware parameters and vehicle status signals, judge whether to perform air conditioning heating or battery heating according to the vehicle status signals, and calculate the three-way water valve control parameters according to the vehicle hardware parameters and the vehicle status signals; the three-way water valve control execution module is used to receive the three-way water valve control parameters, and control the three-way water valve according to the three-way water valve control parameters to meet the air conditioning heating or battery heating requirements.

[0006] Furthermore, the vehicle hardware parameters include the three-way water valve action speed, the engine water pump speed and the heater water pump speed.

[0007] Furthermore, the vehicle status signal includes an engine start / stop signal, an engine water temperature signal, a heater water temperature signal, a three-way water valve opening signal, an air conditioning heating request signal, and a battery heating request signal.

[0008] Furthermore, the three-way water valve judgment and calculation module includes a three-way water valve control judgment module and a three-way water valve parameter calculation module; the three-way water valve control judgment module is used to receive the vehicle status signal and judge whether to perform air conditioning heating or battery heating according to the vehicle status signal; the three-way water valve parameter calculation module is used to calculate the three-way water valve control parameters according to the vehicle hardware parameters and the vehicle status signal.

[0009] Furthermore, the method for determining whether to perform air conditioning heating or battery heating based on the vehicle status signal is: if an engine start signal, an air conditioning heating request signal or a battery heating request signal is received, the engine water temperature is confirmed based on the engine water temperature signal. If the engine water temperature is not lower than the system setting value and not lower than the warm air target water temperature, the judgment result is that air conditioning heating or battery heating can be performed, otherwise the judgment result is that air conditioning heating or battery heating cannot be performed.

[0010] Furthermore, the three-way water valve parameter calculation module includes a three-way water valve opening calculation module and a three-way water valve execution time calculation module; the three-way water valve opening calculation module is used to calculate the target opening of the three-way water valve at each moment; the three-way water valve execution time calculation module is used to calculate the duration of the three-way water valve executing its target opening.

[0011] Furthermore, the method for calculating the target opening of the three-way water valve at each moment is: determining the actual water temperature of the engine according to the engine water temperature signal, bringing the actual water temperature of the engine into the calculation formula of the initial opening of the three-way water valve for calculation, and obtaining the initial opening of the three-way water valve, taking the time when the three-way water valve opening reaches the initial opening of the three-way water valve as the starting moment, determining the actual water temperature of the warm air according to the warm air water temperature signal, bringing the actual water temperature of the engine and the actual water temperature of the warm air into the calculation formula of the incremental opening of the three-way water valve for calculation, and obtaining the incremental opening of the three-way water valve at each moment, and accumulating the incremental opening of the three-way water valve to obtain the target opening of the three-way water valve at each moment.

[0012] Furthermore, the method for calculating the duration of the three-way water valve executing its target opening is: the three-way water valve action speed, the engine water pump speed and the heater water pump speed are substituted into the calculation formula for the duration of the three-way water valve executing its target opening to obtain the duration of the three-way water valve executing its target opening.

[0013] Furthermore, a control method based on the control system of the automobile heater three-way water valve includes the following steps: Collect vehicle hardware parameters and vehicle status signals; Determining whether to perform air conditioning heating or battery heating according to the vehicle status signal, and calculating a three-way water valve control parameter according to the vehicle hardware parameters and the vehicle status signal; The three-way water valve is controlled according to the three-way water valve control parameters to meet the needs of air conditioning heating or battery heating.

[0014] Still further, a computer-readable storage medium stores a computer program thereon, and when the computer program is executed by a processor, the method described above is implemented.

[0015] The beneficial effects of the present invention are: through the vehicle parameter and signal acquisition module, various vehicle status signals and hardware parameters such as engine start and stop signals and water temperature signals are accurately collected. The three-way water valve judgment and calculation module uses these data. When the vehicle is started and there is a heating demand, the air conditioning heating or battery heating is judged only when the engine water temperature is not lower than the system setting value and not lower than the warm air target water temperature. This avoids the ineffective consumption of engine heat, enables the heat to be fully utilized, and significantly improves the heat utilization efficiency.

[0016] The opening calculation module in the three-way water valve parameter calculation module calculates the incremental opening of the three-way water valve according to the actual engine water temperature and the actual heater water temperature and accumulates them to obtain the target opening. The execution time calculation module combines the three-way water valve action speed, the engine water pump speed and the heater water pump speed to calculate the duration of executing the target opening. This precise calculation method can effectively control the three-way water valve even under vehicle acceleration and deceleration, uphill and downhill conditions, maintain the stability of the water temperature at the heater core inlet, and thus ensure the stability of the air conditioning outlet temperature, greatly improving the user's riding comfort.

[0017] Because the present invention avoids wasted engine heat and reduces engine operation at inappropriate temperatures, it eliminates the risk of long-term abnormal engine operation caused by improper water temperature control, effectively reducing the risk of engine damage and extending its service life. Furthermore, by combining a control system, a control method, and a computer-readable storage medium, the present invention establishes a complete and scientific heater water valve control system, providing an efficient and reliable solution for hybrid vehicle thermal management. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The module connection diagram of the automobile heater three-way water valve control system designed by the present invention; Figure 2 This is a schematic diagram of the structure of the automobile heating thermal management system of the present invention; Figure 3 A flow chart of the control method of the automobile heater three-way water valve designed by the present invention; Among them, 1—vehicle parameter and signal acquisition module, 2—three-way water valve judgment and calculation module (2.1—three-way water valve control judgment module, 2.2—three-way water valve opening calculation module, 2.3—three-way water valve execution time calculation module), 3—three-way water valve control execution module, 4—degassing chamber, 5—high-temperature radiator, 6—fan, 7—three-way water valve, 8—heater water pump, 9—engine water pump, 10—engine, 11—engine water temperature sensor, 12—air conditioning box, 13—blower, 14—heater core. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] like Figure 2As shown, in certain automotive heater three-way water valve thermal management systems, coolant is pumped into the engine 10 via the heater water pump 8 and the engine water pump 9. After being heated by the engine 10, the coolant is split into two paths. One path enters the heater core 14 of the air conditioning cabinet 12. A blower 13 blows cool air across the surface of the heater core 14, heating it. The heated air then enters the vehicle's passenger compartment, raising the internal temperature. The other path passes through the high-temperature radiator 5 and exchanges heat with the outside world via the fan 6. The two coolant paths, having undergone heat dissipation, then enter the engine 10 through the three-way water valve 7. This process repeats, heating both the passenger compartment and the battery (the battery can be placed on the same side of the heater core 14 or in series with it, not shown). A degassing chamber 4 is used to remove air from the coolant. An engine water temperature sensor 11 monitors the water temperature of the engine 10. A temperature sensor (not shown) can be provided at the coolant inlet of the heater core 14 to monitor the actual water temperature of the heater core 14.

[0021] Based on the thermal management system of the above automobile heater three-way water valve, the present invention designs a control system for the automobile heater three-way water valve, such as Figure 1 As shown, in some embodiments, the control system of the automobile heater three-way water valve designed by the present invention includes a vehicle parameter and signal acquisition module 1, a three-way water valve judgment and calculation module 2 and a three-way water valve control execution module 3.

[0022] Among them, the vehicle parameter and signal acquisition module 1 is used to collect vehicle hardware parameters and vehicle status signals. The three-way water valve judgment and calculation module 2 is used to receive vehicle hardware parameters and vehicle status signals, judge whether to perform air conditioning heating or battery heating according to the vehicle status signals, and calculate the three-way water valve control parameters according to the vehicle hardware parameters and vehicle status signals. The three-way water valve control execution module 3 is used to receive the three-way water valve control parameters, and control the three-way water valve according to the three-way water valve control parameters to meet the air conditioning heating or battery heating requirements. The three-way water valve control execution module 3 can be an electronic control mechanism, such as a motor or the like, a mechanical device for driving the three-way water valve 7 to open. The mechanical device for driving the valve to open or close is a prior art and will not be repeated here.

[0023] Example 1 like Figure 1 As shown, a specific embodiment of a vehicle parameter and signal acquisition module 1 is provided: The vehicle hardware parameters collected by the vehicle parameter and signal acquisition module 1 include the three-way water valve action speed V0, the engine water pump speed V1 and the heater water pump speed V2; the collected vehicle status signals include the engine start-stop signal, the engine water temperature signal (collected through the engine water temperature sensor 11), the heater water temperature signal (i.e. the coolant inlet water temperature of the heater core 14), the three-way water valve opening signal (collecting the three-way water valve opening on one side of the series circuit between the engine 10 and the heater core 14), the air conditioning heating request signal and the battery heating request signal.

[0024] Example 2 like Figure 1 As shown, a specific embodiment of a three-way water valve judgment and calculation module 2 is provided: The three-way water valve judgment and calculation module 2 includes a three-way water valve control judgment module 2.1, a three-way water valve opening calculation module 2.2 and a three-way water valve execution time calculation module 2.3.

[0025] The three-way water valve control and judgment module 2.1 is used to receive vehicle status signals and, based on these signals, determine whether to enable air conditioning and heating or battery heating. This is done by determining the actual engine water temperature T1 based on the engine water temperature signal if an engine start signal, an air conditioning and heating request signal, or a battery heating request signal is received. If the actual engine water temperature T1 is not lower than the system set value T (determined based on engine characteristics; this means that heating the coolant for passenger compartment heating or battery heating can only be utilized without affecting normal engine operation) and is not lower than the target heater water temperature T2 (a system calibration value, i.e., the optimal coolant temperature entering the heater core 14 to ensure stable passenger compartment heating), the system determines that air conditioning and heating or battery heating is enabled. Otherwise, the system determines that air conditioning and heating or battery heating is disabled.

[0026] The specific judgment formula is: when the engine water temperature T1 ≥ T, and T1 ≥ T2 + m, it is determined that the engine heat can be used, and m is the offset.

[0027] The three-way water valve opening calculation module 2.2 is used to calculate the target opening of the three-way water valve at each moment. The method is as follows: the actual engine water temperature is determined based on the engine water temperature signal, the actual engine water temperature is applied to the three-way water valve initial opening calculation formula to obtain the initial opening of the three-way water valve, the actual heater water temperature is determined based on the heater water temperature signal, the actual engine water temperature and the actual heater water temperature are applied to the three-way water valve incremental opening calculation formula to obtain the incremental opening of the three-way water valve at each moment, and the incremental opening of the three-way water valve is accumulated to obtain the target opening of the three-way water valve at each moment.

[0028] Specifically, the calculation formula for the initial opening of the three-way water valve is: ,in, is the initial opening of the three-way water valve (not exceeding 100%), is the calculation coefficient, n is the calculation constant (determined according to the characteristics of the three-way water valve), is the actual engine water temperature, The target water temperature for warm air. Both and n can be calibrated through experiments.

[0029] Target opening of the three-way water valve at each moment The calculation formula is: is the target opening of the three-way water valve at the previous moment; It is the incremental opening of the three-way water valve.

[0030] Three-way water valve incremental opening The calculation formula is: For the current moment, The last moment can be used to calibrate the duration of a single moment. k1, k2, k3, and k4 are calculation coefficients that can be calibrated through experiments.

[0031] is the warm air target water temperature, The actual water temperature of the warm air.

[0032] When t is 1, and are all 0. When t is 2, For a time period of 1 moment, is 0.

[0033] The following are the target openings of the three-way water valve at four moments: Specific calculation example: K0 is assigned to 0.8, T1 is measured to be 75°, T2 is assigned to be 60°, and n is assigned to be 10; then P0=22; K1 is assigned a value of 0.05, K2 is assigned a value of 0.2, K3 is assigned a value of 0.3, and K4 is assigned a value of 0.02.

[0034] At the first moment, T1 measured 75° and T3 measured 40°. is 0, is 0, is 0; calculated is 35°, is 10.5, then It is 32.5.

[0035] At the second moment, the measured value of T1 remains at 75° and the measured value of T3 is 46°. is 35 (seconds); calculated is 29°, is 17.255, then It is 49.755.

[0036] At the third moment, the T1 measurement value remains unchanged at 75°, and the T3 measurement value remains at 52°. is 29 (seconds); calculated is 23°, is 0.437, then It is 50.192.

[0037] At the fourth moment, the measured value of T1 remains unchanged at 75°, and the measured value of T3 is 50°. is 23 (seconds); calculated is 25°, is 7.875, then It is 58.067.

[0038] The three-way water valve execution time calculation module 2.3 is used to calculate the duration of the three-way water valve's target opening. This is done by substituting the three-way water valve's operating speed, the engine water pump speed, and the heater water pump speed into the calculation formula for the duration of the three-way water valve's target opening. This yields the duration of the three-way water valve's target opening.

[0039] Specifically, the calculation formula for the duration of the three-way water valve to execute its target opening is: Among them, V0 is the action speed of the three-way water valve (that is, the opening angle of the valve disc of the three-way water valve per unit time), V1 is the engine water pump speed, V2 is the heater water pump speed, k5, k6, and k7 are the calculation coefficients of vehicle characteristics, which can be calibrated according to experiments. That is, change the engine water pump speed V1 or the heater water pump speed V2, measure the time it takes for the three-way water valve to reach the target opening multiple times, and bring the time into the equation to obtain the assignment of k5, k6, and k7. Then, based on this, set the time t in the program.

[0040] Example 3 like Figure 3 As shown, a specific embodiment of a method for controlling a three-way water valve of a car heater is provided: If there is no air conditioning heating request or battery heating request, the three-way water valve 7 is closed; If there is an air conditioning heating request or a battery heating request, but the engine is not started at this time, the three-way water valve 7 is closed; If there is an air conditioning heating request or a battery heating request, the engine 10 has been started, but the actual engine water temperature has not reached the heating water temperature, that is, T1 < T or T1 < T2 + m, then the three-way water valve 7 is closed; If there is an air conditioning heating request or a battery heating request, the engine 10 is started, and the engine water temperature reaches the heating water temperature, that is, T1≥T, and T1≥T2+m, then the target opening degree of the three-way water valve 7 is calculated (i.e. ) and execution time (i.e. ); The three-way water valve control execution module 3 controls the opening of the three-way water valve 7 according to the calculated three-way water valve target opening and execution time until the three-way water valve 7 reaches the target opening and the execution time.

[0041] In summary, the present invention encompasses a comprehensive control system, method, and storage medium designed around a three-way water valve thermal management system for automotive heaters. The system utilizes a vehicle parameter and signal acquisition module 1 to acquire hardware parameters and status signals in real time. These signals are then analyzed and processed by a three-way water valve determination and calculation module 2. Finally, a three-way water valve control execution module 3 precisely controls the three-way water valve 7, optimizing both air conditioning and battery heating.

[0042] In specific implementations, the vehicle parameter and signal acquisition module 1 collects hardware parameters such as the three-way water valve's operating speed and water pump speed, as well as status signals such as engine start / stop and water temperature, providing comprehensive data support for system control. The control judgment module within the three-way water valve judgment and calculation module 2 determines whether to activate the heating or cooling function based on specific conditions, ensuring that it is only activated when the engine water temperature is appropriate to avoid heat waste. The opening calculation module and the execution time calculation module calculate the target opening of the three-way water valve 7 based on the actual engine and heater water temperatures using precise formulas, respectively. The execution time is determined by combining the three-way water valve's operating speed with the speed of each water pump, achieving refined control of the three-way water valve 7. The control method clarifies the switching logic of the three-way water valve 7 according to different operating conditions to ensure efficient system operation.

[0043] In terms of heat utilization efficiency, this invention precisely determines whether the engine water temperature meets heating and battery heating requirements, avoiding inefficient engine heat consumption, improving heat utilization, shortening vehicle warm-up time, and reducing the risk of excessive engine 10 wear and tear due to insufficient heat in low-temperature environments. Regarding temperature stability, the target opening and execution time of the three-way water valve are calculated based on real-time water temperature data, effectively suppressing water temperature fluctuations caused by varying engine operating conditions (such as acceleration and deceleration, and uphill and downhill driving), ensuring a stable water temperature at the heater core inlet. This significantly reduces temperature deviations at the air conditioning outlet, thereby enhancing passenger comfort. Furthermore, stable water temperature control ensures accurate battery heating, preventing overheating or underheating that could affect battery performance and lifespan. Regarding system reliability and lifespan, effective heat utilization and temperature control reduce the duration of engine 10 operating at unsuitable temperatures, lowering the probability of damage from prolonged abnormal operation, extending the service life of the engine 10, and optimizing the operational stability of the entire thermal management system.

[0044] It should be noted here that the description of the above technical solutions is exemplary, and this specification can be embodied in different forms and should not be interpreted as being limited to the technical solutions set forth herein. On the contrary, providing these descriptions will make the disclosure of the present invention thorough and complete, and will fully convey the scope disclosed in this specification to those skilled in the art. In addition, the technical solutions of the present invention are limited only by the scope of the claims. When using "including", "having" and "comprising" described in this specification, there may also be another part or other parts, and the terms used may generally be singular but may also represent plural forms. Finally, it should be pointed out that the above embodiments are only more representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments, and there may be many variations. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention should be deemed to fall within the scope of protection of the present invention.

Claims

1. A control system for a three-way water valve of a car heater, characterized by: It includes a vehicle parameter and signal acquisition module (1), a three-way water valve judgment and calculation module (2) and a three-way water valve control execution module (3); The vehicle parameter and signal acquisition module (1) is used to acquire vehicle hardware parameters and vehicle status signals; The three-way water valve judgment and calculation module (2) is used to receive the vehicle hardware parameters and the vehicle status signal, judge whether to perform air conditioning heating or battery heating according to the vehicle status signal, and calculate the three-way water valve control parameters according to the vehicle hardware parameters and the vehicle status signal; The three-way water valve control execution module (3) is used to receive the three-way water valve control parameters and control the three-way water valve according to the three-way water valve control parameters to meet the needs of air conditioning heating or battery heating.

2. The control system of the automobile heater three-way water valve according to claim 1, characterized in that: The vehicle hardware parameters include the three-way water valve action speed, the engine water pump speed and the heater water pump speed.

3. The control system of the automobile heater three-way water valve according to claim 1, characterized in that: The vehicle status signal includes an engine start / stop signal, an engine water temperature signal, a heater water temperature signal, a three-way water valve opening signal, an air conditioning heating request signal, and a battery heating request signal.

4. The control system for the automobile heater three-way water valve according to claim 1, characterized in that: The three-way water valve judgment and calculation module (2) includes a three-way water valve control judgment module (2.1) and a three-way water valve parameter calculation module; The three-way water valve control judgment module (2.1) is used to receive the vehicle status signal and judge whether to perform air conditioning heating or battery heating according to the vehicle status signal; The three-way water valve parameter calculation module is used to calculate the three-way water valve control parameters according to the vehicle hardware parameters and the vehicle status signal.

5. The control system of the automobile heater three-way water valve according to claim 4, characterized in that: The method for determining whether to perform air conditioning heating or battery heating based on the vehicle status signal is: if an engine start signal, an air conditioning heating request signal or a battery heating request signal is received, the engine water temperature is confirmed based on the engine water temperature signal; if the engine water temperature is not lower than the system set value and not lower than the warm air target water temperature, the judgment result is that air conditioning heating or battery heating can be performed; otherwise, the judgment result is that air conditioning heating or battery heating cannot be performed.

6. The control system for the automobile heater three-way water valve according to claim 4, characterized in that: The three-way water valve parameter calculation module includes a three-way water valve opening calculation module (2.2) and a three-way water valve execution time calculation module (2.3); The three-way water valve opening calculation module (2.2) is used to calculate the target opening of the three-way water valve at each moment; The three-way water valve execution time calculation module (2.3) is used to calculate the duration of the three-way water valve executing its target opening.

7. The control system for the automobile heater three-way water valve according to claim 6, characterized in that: The method for calculating the target opening of the three-way water valve at each moment is as follows: determining the actual water temperature of the engine according to the engine water temperature signal, bringing the actual water temperature of the engine into the calculation formula of the initial opening of the three-way water valve for calculation to obtain the initial opening of the three-way water valve, taking the time when the opening of the three-way water valve reaches the initial opening of the three-way water valve as the starting moment, determining the actual water temperature of the warm air according to the warm air water temperature signal, bringing the actual water temperature of the engine and the actual water temperature of the warm air into the calculation formula of the incremental opening of the three-way water valve for calculation to obtain the incremental opening of the three-way water valve at each moment, and accumulating the incremental opening of the three-way water valve to obtain the target opening of the three-way water valve at each moment.

8. The control system for the automobile heater three-way water valve according to claim 6, characterized in that: The method for calculating the duration of the three-way water valve executing its target opening is: the three-way water valve action speed, the engine water pump speed and the heater water pump speed are substituted into the calculation formula for the duration of the three-way water valve executing its target opening to obtain the duration of the three-way water valve executing its target opening.

9. A control method for a control system of a three-way water valve for automobile heater according to any one of claims 1 to 8, comprising the following steps: Collect vehicle hardware parameters and vehicle status signals; Determining whether to perform air conditioning heating or battery heating according to the vehicle status signal, and calculating a three-way water valve control parameter according to the vehicle hardware parameters and the vehicle status signal; The three-way water valve is controlled according to the three-way water valve control parameters to meet the needs of air conditioning heating or battery heating.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method described in claim 9 is implemented.

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