Solenoid valve control method, system, device, apparatus, and storage medium

Abstract

The application discloses an electromagnetic valve control method, system, device, equipment and storage medium. The engine operating state is acquired, and the opening or closing of an electromagnetic valve is controlled based on the engine operating state. The electromagnetic valve is used for controlling the opening or closing of a water collecting pipe, a water discharging pipe and a gas outlet, so that the condensed water in a water storage tank is collected or discharged. That is, the opening and closing of the electromagnetic valve located at the water collecting pipe, the water discharging pipe and the gas outlet are controlled according to the current engine operating state. The opening and closing of the corresponding electromagnetic valve are controlled through a set control method. The condensed water in the cooler can be effectively discharged or collected according to the current engine operating condition. Therefore, the device reliability is improved through the optimization of the control method.

Description

Technical Field

[0001] This application relates to the field of engine technology, and in particular to solenoid valve control methods, systems, devices, equipment, and storage media. Background Technology

[0002] With increasingly stringent emission regulations, EGR (Exhaust Gas Recirculation) technology is now widely used in internal combustion engines. This technology introduces a portion of exhaust gas into the cylinder for combustion, diluting the oxygen concentration in the fresh air and thus reducing the combustion rate within the cylinder. Furthermore, the high thermal conductivity of exhaust gas lowers the cylinder's ambient temperature, reducing NOx levels in combustion products and thus minimizing environmental pollution. In practical applications, the EGR system is crucial. Internal combustion engines produce condensate during operation. If this condensate is not promptly removed, it not only affects the amount of exhaust gas and fresh air intake, impacting engine performance, but also, when combined with acidic elements in the exhaust, forms corrosive substances that further damage the EGR system piping. Therefore, addressing the issue of water accumulation in the EGR cooler is essential to ensure engine performance and extend the lifespan of components and the entire engine.

[0003] Existing drainable EGR devices, which are directly connected to the EGR cooler for processing, may leak at the drain outlet, causing exhaust gases from the EGR cooler to be released into the atmosphere, affecting engine performance and polluting the environment. They are also highly susceptible to changes in the working environment and operating conditions, resulting in poor reliability.

[0004] Therefore, how to promptly remove condensate from the EGR cooler while improving the reliability and operational stability of the EGR system is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, embodiments of this application provide a solenoid valve control method, system, device, equipment, and storage medium, aiming to promptly remove condensate from the EGR cooler and improve the reliability and operational stability of the EGR system.

[0006] In a first aspect, embodiments of this application provide a solenoid valve control method, the method comprising:

[0007] Obtain engine operating status.

[0008] The solenoid valve is controlled to open or close based on the engine's operating status. The solenoid valve is used to control the opening or closing of the water collection pipe, water drain pipe, and air vent, so as to collect or discharge condensate in the water storage tank.

[0009] The control of opening or closing the solenoid valve based on the engine operating state includes:

[0010] When the engine is running, the ambient temperature is acquired, and it is determined whether the ambient temperature is greater than a temperature threshold.

[0011] When the ambient temperature is greater than the temperature threshold, the electric heater is controlled to stop. The electric heater is used to heat the condensate and prevent the condensate from freezing.

[0012] When the ambient temperature is not greater than the temperature threshold, the electric heater is in working condition.

[0013] Optionally, controlling the opening or closing of the solenoid valve based on the engine operating state includes:

[0014] When the engine is running, obtain the status of the water tank;

[0015] When the water tank is full, the solenoid valve is adjusted to the second state, and the timer is controlled to start timing. The second state is used to control the condensate in the water tank to be discharged through the drain pipe.

[0016] When the timer's timing duration is not less than the first preset duration, the solenoid valve is adjusted to the first state to reset the timer. The first state is used to control the condensate to enter the condensate storage tank through the water collection funnel and water collection pipe.

[0017] Optionally, the method further includes:

[0018] When the water tank is not full, the solenoid valve remains in the first state.

[0019] Optionally, controlling the opening or closing of the solenoid valve based on the engine operating state includes:

[0020] When the engine is stopped, the solenoid valve is adjusted to the second state to control the timer to start timing.

[0021] When the timer's timing duration is not less than the first preset duration, the solenoid valve is adjusted to the first state to reset the timer to zero. The second state is used to control the condensate in the water storage tank to be discharged through the drain pipe. The first state is used to control the condensate to enter the condensate storage tank through the water collection funnel and water collection pipe.

[0022] Optionally, controlling the opening or closing of the solenoid valve based on the engine operating state includes:

[0023] When the engine is in a stopped state for a period of time longer than the second preset duration, the solenoid valve is kept in the first state. The first state is used to control the condensate to enter the condensate storage tank through the water collection funnel and water collection pipe.

[0024] Secondly, embodiments of this application provide a solenoid valve control system, characterized in that the device includes: a control system and a drainage device;

[0025] The drainage device is located in front of the cooler's air outlet pipe and is used to receive condensate from the cooler. The condensate passes through the water collection funnel, water collection pipe, electric heater, water storage tank, and water discharge pipe in sequence and is discharged outside the device. An air vent is provided above the water storage tank. The electric heater is located between the water collection funnel and the solenoid valve installed on the water collection pipe.

[0026] The control system is used to acquire the engine operating status and control the opening or closing of the solenoid valve based on the engine operating status. The solenoid valve is used to control the opening or closing of the water collection pipe, water discharge pipe and air vent, so as to realize the collection or discharge of condensate in the water storage tank.

[0027] Thirdly, embodiments of this application provide a solenoid valve control device, characterized in that it includes:

[0028] The acquisition module is used to acquire the engine operating status.

[0029] The control module is used to control the opening or closing of the solenoid valve based on the engine operating status. The solenoid valve is used to control the opening or closing of the water collection pipe, water drain pipe and air vent, so as to realize the collection or discharge of condensate in the water storage tank.

[0030] Fourthly, this application provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the solenoid valve control method provided in the first aspect of this application.

[0031] Fifthly, embodiments of this application provide a computer-readable storage medium storing instructions that, when executed on a terminal device, cause the terminal device to perform the solenoid valve control method provided in the first aspect of embodiments of this application.

[0032] This application provides a solenoid valve control method, system, device, equipment, and storage medium. When executing the method, the engine operating status is acquired, and the opening or closing of the solenoid valve is controlled based on the engine operating status. The solenoid valve is used to control the opening or closing of the water collection pipe, water drain pipe, and vent port to achieve the collection or discharge of condensate in the water tank. Specifically, the opening and closing of the solenoid valves located in the water collection pipe, water drain pipe, and vent port are controlled according to the current engine operating status. By controlling the opening and closing of the corresponding solenoid valves through a set control method, condensate in the EGR cooler can be effectively discharged according to the current engine operating conditions, and controlling the opening and closing of the solenoid valve located at the vent port can prevent air leakage. Therefore, by optimizing the control method, the reliability of the device is improved. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in this embodiment or the prior art, the drawings used in the description of the embodiment or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the drainage device structure provided in an embodiment of this application;

[0035] Figure 2 This is a flowchart of one method of the solenoid valve control method provided in the embodiments of this application;

[0036] Figure 3 This is a schematic diagram of a solenoid valve control device provided in an embodiment of this application. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0038] As mentioned earlier, existing EGR devices capable of draining condensate may leak at the drain outlet, causing exhaust gases from the EGR cooler to be released into the atmosphere, affecting engine performance and polluting the environment. In other words, while current devices or mechanisms for draining condensate from EGR systems have the function of removing condensate, they also have drawbacks, such as releasing exhaust gases from the EGR cooler into the atmosphere, affecting engine performance and polluting the environment, being highly susceptible to changes in the operating environment and conditions, and having poor reliability. Further improvement and optimization are urgently needed.

[0039] To address this issue, embodiments of this application provide a solenoid valve control method, system, device, equipment, and storage medium. When executing the method, the embodiments of this application provide a solenoid valve control method, system, device, equipment, and storage medium. During the execution of the method, the engine operating status is acquired, and the opening or closing of the solenoid valve is controlled based on the engine operating status. The solenoid valve is used to control the opening or closing of the water collection pipe, water drain pipe, and vent port to achieve the collection or discharge of condensate in the water tank. That is, the opening and closing of the solenoid valves located in the water collection pipe, water drain pipe, and vent port are controlled according to the current engine operating status. By controlling the opening and closing of the corresponding solenoid valves through a set control method, condensate in the EGR cooler can be effectively discharged according to the current engine operating conditions, and controlling the opening and closing of the solenoid valve located at the vent port can prevent air leakage. Therefore, by optimizing the control method, the reliability of the device is improved.

[0040] The method provided in this application embodiment is executed by a solenoid valve control system, which includes a control system and a drainage device; the drainage device is described in [reference needed]. Figure 1 , Figure 1 This is a schematic diagram of the drainage device provided in an embodiment of this application. The drainage device is located downstream of the EGR cooler, i.e., before the EGR outlet pipe, and is used to receive condensate from the cooler, which sequentially passes through a water collection funnel, a water collection pipe, an electric heater, a water storage tank, and a drain pipe before being discharged outside the device. A vent is located above the water storage tank. The electric heater is located between the water collection funnel and a solenoid valve installed on the water collection pipe. The control system is used to acquire the engine operating status and, based on the engine operating status, controls the opening or closing of the solenoid valve. The solenoid valve controls the opening or closing of the water collection pipe, drain pipe, and vent pipe to achieve the collection or discharge of condensate from the water storage tank. Figure 1 Solenoid valves 1, 2, and 3 are respectively installed on the water collection pipe, the water discharge pipe, and the air vent. In one possible implementation, a level gauge can be installed inside the condensate storage tank to monitor the liquid level in the tank.

[0041] The following embodiment illustrates the solenoid valve control method provided in this application. Please refer to... Figure 2 , Figure 2 A flowchart of a solenoid valve control method provided in this application embodiment includes:

[0042] S101: Obtain engine operating status.

[0043] In practical applications, the drainage device initially defaults to the first state, where solenoid valve 1 is open, solenoid valve 2 is closed, and solenoid valve 3 is closed. In this state, the solenoid valves control the condensate to flow through the collection funnel and collection pipe into the condensate storage tank. The ECU (Electronic Control Unit) is then called to determine the engine's operating status.

[0044] S102: Control the opening or closing of the solenoid valve based on the engine operating status.

[0045] The solenoid valve is used to control the opening or closing of the water collection pipe, water discharge pipe and air vent, so as to collect or discharge condensate in the water storage tank.

[0046] In one possible implementation, controlling the opening or closing of the solenoid valve based on the engine operating state includes steps A1-A3:

[0047] Step A1: When the engine is running, acquire the ambient temperature and determine whether the ambient temperature is greater than the temperature threshold.

[0048] When the engine is detected to be running, the current ambient temperature is obtained. In practical applications, the ambient temperature can be obtained by a temperature sensor installed near the engine.

[0049] Step A2: When the ambient temperature is greater than the temperature threshold, control the electric heater to stop.

[0050] The electric heater is used to heat the condensate and prevent it from freezing. For example, when the temperature threshold is 0 degrees Celsius, the electric heater will not work when the ambient temperature of the vehicle and engine is greater than 0 degrees Celsius.

[0051] Step A3: When the ambient temperature is not greater than the temperature threshold, control the electric heater to be in working state.

[0052] For example, when the temperature threshold is set to 0 degrees, when the ambient temperature of the vehicle and engine is ≤0℃, the electric heater continues to work, and the condensate is heated before passing through solenoid valve 1, and then enters the condensate storage tank through solenoid valve 1 and the water collection pipe in sequence.

[0053] In one possible implementation, controlling the opening or closing of the solenoid valve based on the engine operating state includes steps B1-B3:

[0054] Step B1: When the engine is running, obtain the status of the water tank.

[0055] In practical applications, a level gauge can be installed in the water storage tank to detect the tank's status, i.e., to monitor whether the tank is full.

[0056] Step B2: When the water tank is full, adjust the solenoid valve to the second state and control the timer to start timing.

[0057] The second state is used to control the discharge of condensate from the water storage tank through the drain pipe. When the level gauge detects that the current condensate storage tank is full, the solenoid valve is in the second state and remains in this state for a time t. The condensate in the condensate storage tank is discharged from the device through the drain pipe by its own gravity.

[0058] Step B3: When the timer's timing duration is not less than the first preset duration, adjust the solenoid valve to the first state and reset the timer to zero.

[0059] After the second state continues for the first preset time, all the condensate in the current water tank has been discharged from the device, and then the solenoid valve is adjusted to the first state.

[0060] In practical applications, when the water storage tank is not full, the solenoid valve remains in its first state. That is, when the water storage tank is not full of condensate, the solenoid valve remains in its first state, and the device collects water.

[0061] In one possible implementation, controlling the opening or closing of the solenoid valve based on the engine operating state includes steps C1-C2:

[0062] The control of opening or closing the solenoid valve based on the engine operating state includes:

[0063] Step C1: When the engine is stopped, adjust the solenoid valve to the second state and control the timer to start timing.

[0064] Step C2: When the timer's timing duration is not less than the first preset duration, adjust the solenoid valve to the first state to reset the timer. The second state is used to control the condensate in the water storage tank to be discharged through the drain pipe, and the first state is used to control the condensate to enter the condensate storage tank through the water collection funnel and water collection pipe.

[0065] That is, after the engine stops running, it continues to run in the second state for a period of time, namely the first preset time, to ensure that all the condensate in the water tank is drained when the engine is parked.

[0066] In one possible implementation, controlling the opening or closing of the solenoid valve based on the engine operating state includes step D1:

[0067] Step D1: When the engine is in a stopped state for a period of time longer than the second preset time, the solenoid valve is kept in the first state. The first state is used to control the condensate to enter the condensate storage tank through the water collection funnel and water collection pipe.

[0068] In practical applications, the second preset duration can be adjusted according to actual needs. The second preset duration is used to determine whether the engine has not been used for a long time. That is, when the engine has been in a stopped state for a long time, the solenoid valve is kept in the first state.

[0069] Based on the above judgment of whether the water tank is full, in practical applications, an upper limit value for the water tank can be set, for example, setting the upper limit value to 'a', where 'a' can represent 80% of the water tank capacity. Using 'a' as a preset water tank adjustment condition, when the engine is running, the water tank status is obtained; when the water tank status meets the preset water tank adjustment condition, the solenoid valve is adjusted to the second state, and the timer starts counting. When the water tank status does not meet the preset water tank adjustment condition, the solenoid valve remains in the first state.

[0070] In one possible implementation, different control valve strategies can be set for different water levels in the storage tank. For example, when the water level in the storage tank is at the upper limit value 'a', the solenoid valve is adjusted to the second state, at which point solenoid valves 2 and 3 are fully open. When the water level in the storage tank is at the limit value 'b', which is less than 'a', the solenoid valves still need to be adjusted to the second state, with solenoid valve 1 closed and solenoid valves 2 and 3 open. The opening degree of solenoid valves 2 and 3 can be slightly less than that of the aforementioned limit value 'a', thereby reducing the drainage flow rate. The values ​​'a' and 'b' mentioned above are merely examples; in actual application scenarios, the values ​​and the degree of solenoid valve opening can be adjusted according to actual needs, without limitation.

[0071] In summary, the embodiments of this application, through a set control method, control the opening and closing of the corresponding solenoid valves, which can effectively drain the condensate in the EGR cooler and prevent air leakage. Simultaneously, the electric heater in the device effectively prevents the condensate from freezing, expanding the device's operating environment range and improving its reliability. Furthermore, by optimizing the control method, i.e., stopping the machine to drain water, the device's reliability is further enhanced.

[0072] The above describes some specific implementations of a solenoid valve control method provided in this application. Based on this, this application also provides a corresponding device. The device provided in this application will be described below from the perspective of functional modularity.

[0073] Please refer to Figure 3 , Figure 3 This is a schematic diagram of the structure of a solenoid valve control device provided in an embodiment of this application.

[0074] In this embodiment, the device may include:

[0075] Module 201 is used to acquire the engine operating status.

[0076] The control module 202 is used to control the opening or closing of the solenoid valve based on the engine operating status. The solenoid valve is used to control the opening or closing of the water collection pipe, water discharge pipe and air vent pipe to realize the collection or discharge of condensate in the water storage tank.

[0077] Optionally, the control module is used to acquire the ambient temperature when the engine is running, and determine whether the ambient temperature is greater than a temperature threshold; when the ambient temperature is greater than the temperature threshold, control the electric heater to be in a stopped state, the electric heater being used to heat the condensate and prevent the condensate from freezing; when the ambient temperature is not greater than the temperature threshold, control the electric heater to be in a working state.

[0078] Optionally, the control module is used to acquire the status of the water tank when the engine is running; when the water tank is full, adjust the solenoid valve to the second state and control the timer to start timing, the second state is used to control the condensate in the water tank to be discharged through the drain pipe; when the timing time is not less than a first preset duration, adjust the solenoid valve to the first state and reset the timer to zero, the first state is used to control the condensate to enter the condensate storage tank through the water collection funnel and water collection pipe.

[0079] Optionally, the control module is used to maintain the solenoid valve in the first state when the water storage tank is not full.

[0080] Optionally, the control module is used to adjust the solenoid valve to a second state and control the timer to start timing when the engine is in a stopped state;

[0081] When the timer's timing duration is not less than the first preset duration, the solenoid valve is adjusted to the first state to reset the timer to zero. The second state is used to control the condensate in the water storage tank to be discharged through the drain pipe. The first state is used to control the condensate to enter the condensate storage tank through the water collection funnel and water collection pipe.

[0082] Optionally, the control module is used to maintain the solenoid valve in a first state when the engine is in a stopped state for a period of time longer than a second preset time. The first state is used to control the condensate to enter the condensate storage tank through the water collection funnel and water collection pipe.

[0083] It should be noted that the solenoid valve control method, system, device, equipment, and storage medium provided by this invention can be used in the fields of artificial intelligence and computer science. The above are merely examples and do not limit the application areas of the solenoid valve control method, system, device, equipment, and storage medium provided by this invention.

[0084] The foregoing provides a detailed description of the solenoid valve control method, system, apparatus, device, and storage medium provided in this application. The various embodiments in the specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatuses disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0085] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0086] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A solenoid valve control method for operating a solenoid valve control system, characterized in that, The solenoid valve control system includes: a control system and a drainage device; the drainage device is located before the cooler's air outlet pipe and is used to receive condensate from the cooler, which passes sequentially through a water collection funnel, a water collection pipe, an electric heater, a water storage tank, and a drain pipe before being discharged outside the device; the water storage tank has a vent above it, and the electric heater is located on the water collection pipe between the water collection funnel and the water storage tank; the solenoid valve includes solenoid valve 1, solenoid valve 2, and solenoid valve 3, which are respectively installed on the water collection pipe, the drain pipe, and the vent between the electric heater and the water storage tank; The solenoid valve control method includes: The engine operating status, ambient temperature, and water tank status are obtained. The engine operating status includes engine running and stopped. The ambient temperature includes ambient temperature greater than a temperature threshold and ambient temperature not greater than a temperature threshold. The water tank status includes water tank full and not full. Based on the engine operating status, ambient temperature, and water tank status, the opening or closing of each solenoid valve and the operation or shutdown of the electric heater are controlled. The solenoid valves are used to control the opening or closing of the water collection pipe, water discharge pipe, and venting port to achieve the collection, discharge, or venting of condensate in the water tank.

2. The solenoid valve control method according to claim 1, characterized in that, When the engine is running, the ambient temperature is acquired, and it is determined whether the ambient temperature is greater than a temperature threshold. When the ambient temperature is greater than the temperature threshold, the electric heater is controlled to stop. The electric heater is used to heat the condensate and prevent the condensate from freezing. When the ambient temperature is not greater than the temperature threshold, the electric heater is in working condition.

3. The solenoid valve control method according to claim 1, characterized in that, When the engine is running, obtain the status of the water tank; When the water tank is full, the solenoid valve is adjusted to the second state, and the timer is controlled to start timing. The second state is used to control the condensate in the water tank to be discharged through the drain pipe. When the timer's timing duration is not less than the first preset duration, the solenoid valve is adjusted to the first state to reset the timer. The first state is used to control the condensate to enter the condensate storage tank through the water collection funnel and water collection pipe.

4. The solenoid valve control method according to claim 3, characterized in that, The method further includes: When the water tank is not full, the solenoid valve remains in the first state.

5. The solenoid valve control method according to claim 1, characterized in that, When the engine is stopped, the solenoid valve is adjusted to the second state to control the timer to start timing. When the timer's timing duration is not less than the first preset duration, the solenoid valve is adjusted to the first state to reset the timer to zero. The second state is used to control the condensate in the water storage tank to be discharged through the drain pipe. The first state is used to control the condensate to enter the condensate storage tank through the water collection funnel and water collection pipe.

6. The solenoid valve control method according to claim 1, characterized in that, When the engine is in a stopped state for a period of time longer than the second preset duration, the solenoid valve is kept in the first state. The first state is used to control the condensate to enter the condensate storage tank through the water collection funnel and water collection pipe.

7. A solenoid valve control device, operated using the solenoid valve control method according to any one of claims 1-6, characterized in that, The solenoid valve control device includes: The acquisition module is used to acquire engine operating status, ambient temperature, and water tank status. The control module is used to control the opening or closing of each solenoid valve and the operation or shutdown of the electric heater based on the engine operating status, ambient temperature and water tank status. The solenoid valves are used to control the opening or closing of the water collection pipe, water discharge pipe and vent, so as to realize the collection, discharge or venting of condensate in the water tank.

8. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the solenoid valve control method as described in any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores instructions that, when executed on a terminal device, cause the terminal device to perform the solenoid valve control method according to any one of claims 1-6.

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