A highly integrated intelligent fuel filter

Abstract

The present invention discloses a highly integrated intelligent fuel filter, belonging to the technical field of automotive fuel filtration systems. The fuel filter of the present invention is equipped with an intelligent drainage system, an intelligent oil pumping system, and an intelligent heating system to achieve automatic drainage, exhaust, and heating. A drainage controller is provided to automatically control the intelligent drainage system, the intelligent oil pumping system, and the intelligent heating system, thereby improving the automation level of the fuel filter and, in turn, enhancing the end-customer experience. The intelligent oil pumping system of the present invention can also assist in oil delivery and the intelligent heating module can also assist in fuel heating during engine startup. The intelligent oil pumping system and intelligent heating system of the present invention can also alleviate the problem of difficult engine starting in extreme environments.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle fuel filter systems, and in particular to a highly integrated intelligent fuel filter. Background Art

[0002] With the development of automotive filtration technology, the industry has reached a relatively high level of basic filtration performance, such as impurity filtration efficiency and water separation efficiency, which can fully meet the fuel cleanliness requirements of the fuel system. Therefore, on the basis of meeting the basic performance, higher requirements are put forward for fuel filters.

[0003] However, many functions of the fuel filter other than basic filtering performance can only be completed manually. Due to the limited space reserved for the fuel filter in the entire vehicle, some operations are difficult or even impossible to complete. Therefore, the integrated intelligent electronic module can provide convenience for end users.

[0004] For example, the intelligent oil pump module can assist with oil pumping, while the intelligent heating module can alleviate engine starting difficulties in extreme environments. The intelligent drainage module can prevent the end user from being unable to drain the fuel manually. Integrating intelligent electronic devices into fuel filters can effectively enhance the end-user experience. Summary of the Invention

[0005] The purpose of the present invention is to provide a highly integrated intelligent fuel filter to improve the automation level of the fuel filter and provide convenience for end users.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] The present invention provides a highly integrated intelligent fuel filter, comprising: a fuel filter body, an intelligent oil pumping system, an intelligent drainage system, a drainage controller and an intelligent heating system;

[0008] The drainage controller is connected to the control terminals of the intelligent oil pumping system, the intelligent drainage system and the intelligent heating system respectively;

[0009] The drainage controller and the intelligent oil pumping system are both arranged in the upper shell of the fuel filter body, and the intelligent drainage system and the intelligent heating system are arranged in the lower shell of the fuel filter body;

[0010] The drainage controller is used to control the intelligent heating system to intelligently heat the fuel in the lower shell of the fuel filter body, control the intelligent drainage system to intelligently drain the water, and control the intelligent oil pumping system to intelligently pump the oil.

[0011] Optionally, the intelligent oil pumping system includes: a pump driver, an oil delivery pump, a first sealing ring, a second sealing ring and an oil outlet cap;

[0012] The control end of the pump driver is connected to the drainage controller, and the output end of the pump driver is connected to the oil pump;

[0013] A horizontal cylindrical cavity is provided in the upper shell;

[0014] The oil transfer pump is disposed in the horizontal cylindrical cavity. The first sealing ring is disposed at the first end of the horizontal cylindrical cavity to prevent oil leakage. The second sealing ring is disposed between the middle portion of the oil transfer pump housing and the inner wall of the horizontal cylindrical cavity. The first end is the end where the oil outlet of the horizontal cylindrical cavity is located.

[0015] The horizontal cylindrical cavity outside the shell of the oil pump and between the second end of the horizontal cylindrical cavity and the second sealing ring forms an oil suction cavity;

[0016] The horizontal cylindrical cavity outside the housing of the oil pump and between the first sealing ring and the second sealing ring forms an oil outlet cavity, which is communicated with the oil outlet;

[0017] The oil inlet of the oil transfer pump is located in the oil suction chamber, and the oil outlet of the oil transfer pump is located in the oil outlet chamber. When the oil transfer pump is working, the fuel is sent from the oil suction chamber to the oil outlet chamber.

[0018] The oil outlet cap is arranged at one end of the filter element of the fuel filter body. The oil outlet cap has a main oil port connecting the clean oil passage and the oil outlet chamber, and an auxiliary oil port connecting the clean oil passage and the oil suction chamber. A one-way valve is installed at the main oil port to conduct one-way flow from bottom to top.

[0019] In terms of controlling the intelligent oil pumping system to perform intelligent oil extraction, the drainage controller is specifically used to:

[0020] When the vehicle's engine is in a starting state, a first oil pumping control signal is generated, and when the intelligent drainage system completes drainage, a second oil pumping control signal is generated;

[0021] The first oil pumping control signal is used to control the operation of the oil pump to perform intelligent oil delivery to assist in starting the vehicle engine;

[0022] The second oil pumping control signal is used to control the operation of the oil pump to perform intelligent oil delivery, so as to remove gas generated during the drainage process in the fuel filter body.

[0023] Optionally, the intelligent drainage system includes a water level alarm and an electromagnetic drain valve;

[0024] The water level alarm is arranged in the lower shell of the fuel filter body, the water level alarm is connected to the drainage controller, and the water level alarm is used to detect water accumulation information in the lower shell;

[0025] The drainage controller is connected to the control end of the electromagnetic drainage valve;

[0026] In terms of controlling the intelligent drainage system to perform intelligent drainage, the drainage controller is specifically used to:

[0027] When the water accumulation information indicates that the water level in the lower shell is higher than the upper limit of the water level and meets the drainage conditions, the electromagnetic drain valve is controlled to open for drainage until the water level in the lower shell is no higher than the lower limit of the water level, and the electromagnetic drain valve is controlled to close to stop drainage; the drainage conditions are that the vehicle's engine is in an inoperative state, the temperature state meets the drainage temperature condition and the state of the drainage flag is that drainage is allowed; the temperature state meets the drainage temperature condition specifically when the ambient temperature is greater than the ambient temperature threshold or the fuel temperature in the fuel filter body is greater than the fuel temperature threshold.

[0028] Optionally, the drainage controller is connected to the vehicle controller of the vehicle via a CAN bus, and the drainage controller obtains the working status and ambient temperature of the vehicle's engine via the CAN bus.

[0029] Optionally, the drainage controller is further configured to set the state of the drainage flag to prohibit drainage when receiving a drainage prohibition instruction, otherwise, set the state of the drainage flag to allow drainage.

[0030] Optionally, the intelligent heating system includes: a heater and a temperature sensor;

[0031] The temperature sensor is connected to the drainage controller, and the drainage controller is connected to the control end of the heater;

[0032] In terms of controlling the intelligent heating system to intelligently heat the fuel in the lower shell of the fuel filter body, the drainage controller is specifically used to send a start signal to the heater when the temperature of the fuel in the fuel filter body is lower than the fuel temperature threshold, thereby controlling the heater to start and heat the fuel in the fuel filter body to the fuel temperature threshold.

[0033] Optionally, the upper shell and the lower shell of the fuel filter body are made of plastic, and the middle shell of the fuel filter body is made of aluminum.

[0034] Optionally, the fuel filter body is provided with a connecting clamp and a first connecting ear;

[0035] During installation, the connecting card is clamped in the connecting card seat provided on the engine housing of the vehicle, and the first connecting ear is connected to the second connecting ear provided on the engine housing of the vehicle by screws;

[0036] The outer shape of the fuel filter body matches the concave structure provided on the engine housing of the vehicle.

[0037] Optionally, the control method is applied to the above-mentioned highly integrated intelligent fuel filter, and the control method includes:

[0038] When the vehicle is powered on, it is determined whether the vehicle start signal of the engine is received;

[0039] When a vehicle start signal is received, a first oil pumping control signal is generated to control the operation of the oil pump of the intelligent oil delivery system to perform intelligent oil delivery to assist in starting the vehicle engine;

[0040] When the vehicle start signal is not received, determining whether the water accumulation information in the lower housing of the fuel filter body indicates that the water level is higher than the upper limit;

[0041] When the water accumulation information indicates that the water level in the lower shell is higher than the upper water level limit and the drainage conditions are met, the electromagnetic drain valve of the intelligent drainage system is controlled to open for drainage until the water level in the lower shell is no higher than the lower water level limit, the electromagnetic drain valve is controlled to close, drainage is stopped, and a second oil pumping control signal is generated to control the oil pump of the intelligent drainage system to perform intelligent oil delivery to remove the gas generated during the drainage process in the fuel filter body; the drainage conditions are that the vehicle's engine is in an inoperative state, the temperature state meets the drainage temperature condition and the state of the drainage flag is to allow drainage; the temperature state meets the drainage temperature condition specifically when the ambient temperature is greater than the ambient temperature threshold or the fuel temperature in the fuel filter body is greater than the fuel temperature threshold.

[0042] Optionally, the control method further includes:

[0043] When the temperature of the fuel in the fuel filter body is lower than the fuel temperature threshold, a start signal is sent to the heater of the intelligent heating system to control the heater to start and heat the fuel in the fuel filter body to the fuel temperature threshold.

[0044] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects:

[0045] An embodiment of the present invention provides a highly integrated intelligent fuel filter, comprising: a fuel filter body, an intelligent oil pumping system, an intelligent drainage system, a drainage controller and an intelligent heating system; the drainage controller is connected to the control ends of the intelligent oil pumping system, the intelligent drainage system and the intelligent heating system, respectively; the drainage controller and the intelligent oil pumping system are both arranged in the upper shell of the fuel filter body, and the intelligent drainage system and the intelligent heating system are arranged in the lower shell of the fuel filter body; the drainage controller is used to control the intelligent heating system to intelligently heat the fuel in the lower shell of the fuel filter body, control the intelligent drainage system to intelligently drain the water, and control the intelligent oil pumping system to intelligently pump the oil. The present invention is equipped with an intelligent drainage system, an intelligent oil pumping system and an intelligent heating system to complete automatic drainage, exhaust and heating, and a drainage controller is provided to automatically control the intelligent drainage system, the intelligent oil pumping system and the intelligent heating system, thereby improving the automation level of the fuel filter and thus improving the user experience of the end customers. The intelligent oil pumping system of the present invention can also assist in oil delivery when the engine is started, and the intelligent heating module can also assist in fuel heating when the engine is started. The intelligent oil pumping system and the intelligent heating system of the present invention can also alleviate the problem of difficult engine starting in extreme environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. 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 any creative work.

[0047] Figure 1 A schematic diagram of the external structure of a highly integrated intelligent fuel filter provided by an embodiment of the present invention;

[0048] Figure 2 A schematic diagram of the internal structure of a highly integrated intelligent fuel filter provided by an embodiment of the present invention;

[0049] Figure 3 A schematic diagram of the oil circuit distribution of a highly integrated intelligent fuel filter provided by an embodiment of the present invention;

[0050] Figure 4 A schematic diagram of the configuration of an intelligent oil pumping system according to an embodiment of the present invention;

[0051] Figure 5 A front view of the intelligent drainage system and intelligent heating system provided by an embodiment of the present invention;

[0052] Figure 6A top view of the intelligent drainage system and intelligent heating system provided in an embodiment of the present invention;

[0053] Figure 7 This is a workflow diagram of the intelligent drainage system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0055] The purpose of the present invention is to provide a highly integrated intelligent fuel filter to improve the automation level of the fuel filter and provide convenience for end users.

[0056] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0057] like Figures 1-6 As shown, an embodiment of the present invention provides a highly integrated intelligent fuel filter, comprising: a fuel filter body, an intelligent oil pumping system, an intelligent drainage system, a drainage controller and an intelligent heating system; the drainage controller is connected to the control ends of the intelligent oil pumping system, the intelligent drainage system and the intelligent heating system respectively; the drainage controller and the intelligent oil pumping system are both arranged in the upper shell of the fuel filter body, and the intelligent drainage system and the intelligent heating system are arranged in the lower shell of the fuel filter body; the drainage controller is used to control the intelligent heating system to intelligently heat the fuel in the lower shell of the fuel filter body, control the intelligent drainage system to intelligently drain the water, and control the intelligent oil pumping system to intelligently pump the oil.

[0058] like Figure 1 As shown, the fuel filter body is divided into a supporting shell and a filter core. The supporting shell includes an upper shell, a middle shell and a lower shell. The upper shell assembly includes an upper shell. The pump controllers of the intelligent oil pumping system and the intelligent drainage system are both arranged in the upper shell.

[0059] An oil inlet and an oil outlet are provided on the left side of the upper shell, and a drainage controller mounting hole of the intelligent drainage system is provided on the right side for placing the drainage controller. Two cylindrical cavities, horizontal and vertical, are reserved on the inside, namely the horizontal cylindrical cavity and the vertical cylindrical cavity. The horizontal cylindrical cavity is used for embedding the intelligent oil pump system, and the vertical cylindrical cavity is used to connect with the upper cover of the filter core and realize the upper end positioning of the filter core. The middle shell of the supporting shell is provided with a positioning and mounting structure for installation on the whole vehicle. The lower shell of the supporting shell is a variable diameter structure, and the variable diameter position is used for positioning the lower end of the filter core. The electromagnetic drain valve and the water level alarm can be installed at the bottom end of the outer side of the lower shell to combine with the drainage controller installed on the upper shell to form the intelligent drainage system of the product. At the same time, the lower shell is installed with an intelligent heating system to heat the fuel at the right time.

[0060] The filter core comprises an inner and outer layer. The outer layer, composed of a support frame and filter paper, forms a first cavity with the support housing. Fuel entering through the fuel inlet is temporarily stored there. The outer layer of the filter core filters particulate matter from the fuel and simultaneously agglomerates small-sized water molecules in the oil. The filtered oil and agglomerated water enter the second cavity formed by the inner and outer layers. The filter core is composed of an inner frame and a mesh made of oleophilic and hydrophobic material. After the clean oil and water mixture passes through the inner layer of the filter core, the water is separated, and the clean oil passes through the oleophilic and hydrophobic mesh to enter the oil outlet.

[0061] like Figure 2 As shown, the upper shell is provided with a pump cavity for placing the oil pump of the intelligent oil pumping system. Two seals are provided to separate the oil circuit into two different oil circuits. For specific oil circuits, see Figure 3 . Exemplarily, the intelligent oil pumping system includes: a pump driver, an oil pump, a first sealing ring, a second sealing ring and an oil outlet cap; the control end of the pump driver is connected to the drainage controller, and the output end of the pump driver is connected to the oil pump; a horizontal cylindrical cavity is provided in the upper shell; the oil pump is provided in the horizontal cylindrical cavity, and the first sealing ring is provided at the first end of the horizontal cylindrical cavity to prevent oil leakage; the second sealing ring is provided between the middle of the outer shell of the oil pump and the inner wall of the horizontal cylindrical cavity; the first end is the end where the oil outlet of the horizontal cylindrical cavity is located; outside the outer shell of the oil pump, and the horizontal cylindrical cavity The horizontal cylindrical cavity between the second end of the body and the second sealing ring forms an oil suction cavity; the horizontal cylindrical cavity outside the shell of the oil pump and between the first sealing ring and the second sealing ring forms an oil outlet cavity, which is communicated with the oil outlet port; the oil inlet of the oil pump is located in the oil suction cavity, and the oil outlet of the oil pump is located in the oil outlet cavity, and the oil pump delivers fuel from the oil suction cavity to the oil outlet cavity when it is working; the oil outlet cap is provided at one end of the filter element of the fuel filter body, and the oil outlet cap has a main oil port connecting the clean oil passage and the oil outlet cavity, and an auxiliary oil port connecting the clean oil passage and the oil suction cavity; a one-way valve that conducts one-way from bottom to top is installed at the main oil port.

[0062] See also Figure 3-Figure 4 The upper shell, middle shell and lower shell are connected by threads and radially sealed with O-rings. There are three seals and an umbrella-shaped rubber diaphragm on the filter core (the umbrella-shaped rubber diaphragm is equipped with a one-way valve that conducts one-way from bottom to top at the main oil outlet). The filter core is divided into two parts: before and after fuel filtration. The lower shell is equipped with the sensing and execution parts of the intelligent heating system and intelligent drainage system. Its assembly relationship and connection method are shown in Figure 5 , they all use O-rings for sealing. The above structure combined with the O-ring divides the diesel filter into two relatively independent parts, the inner and outer parts, which are only connected at specific positions, thus realizing the filtering function of the product.

[0063] like Figure 3 As shown, the horizontal cylindrical cavity is installed in conjunction with the oil pump. Seals (i.e., a first seal and a second seal) are installed at the front and rear of the oil pump. The oil pump is inserted into the horizontal cylindrical cavity of the support base from the outside inward. The two seals compress and seal against the inner wall of the horizontal cylindrical cavity, forming two independent cavities, one on the left for the oil pump's suction chamber and the other on the right for its discharge chamber. The oil outlet cap is mounted on one end of the filter element of the fuel filter body. The cap has a main oil port connecting the clean oil passage and the discharge chamber, as well as an auxiliary oil port connecting the clean oil passage and the suction chamber. A one-way valve (i.e., an umbrella-shaped rubber diaphragm) is installed at the main oil port, providing a one-way flow from bottom to top.

[0064] The middle sealing ring of the horizontal cylindrical cavity separates the oil circuit. The pump controller receives the signal from the intelligent drainage system. If the electromagnetic drain valve is not working when the power is turned on, the oil pump starts. If the electromagnetic drain valve is detected to be draining, the oil pump temporarily stops working. The oil pump extends into the horizontal cylindrical cavity and is fixed to the upper shell by screws. It is sealed with an O-ring. The front sealing ring (i.e., the second sealing ring) seals the pump body of the oil pump to prevent oil leakage from the pump body. The rear sealing ring (i.e., the first sealing ring) separates the oil circuit into two parts according to whether the oil pump is working or not: when the oil pump is working, the fuel passes through the oil circuit at the bottom of the pump, through the pump body of the oil pump, and is delivered to the oil outlet; when the oil pump stops working, the negative pressure generated by the fuel system directly sucks the oil into the oil outlet to supply oil to the engine. Specifically: when the engine is working normally, the clean oil after filtration passes through the umbrella-shaped rubber diaphragm through the main oil supply oil circuit (0) → main oil supply oil circuit (1) and finally through the oil outlet to supply the engine. When the engine is not started but the electric pump is working, the filtered clean oil passes through the main oil supply oil circuit (0) → the oil pump oil circuit (2) → the oil pump and finally passes through the oil outlet to supply the engine or fuel tank. The drainage controller decides whether to start the electric pump based on the engine status and the working status of the intelligent drainage system. Under normal circumstances, when the vehicle is just started, the two oil circuits are working simultaneously. The oil pump in the embodiment of the present invention can also be controlled based on the following logic: when the vehicle is powered on, the oil pump starts and stops after the set operation time.

[0065] As a preferred embodiment, the control method provided by the embodiment of the present invention is: when the vehicle's engine is in the starting state, a first oil pumping control signal is generated, and when the intelligent drainage system completes drainage, a second oil pumping control signal is generated; the first oil pumping control signal is used to control the operation of the oil pump to perform intelligent oil delivery to assist in starting the vehicle's engine; the second oil pumping control signal is used to control the operation of the oil pump to perform intelligent oil delivery to remove the gas generated during the drainage process in the fuel filter body.

[0066] like Figure 4 As shown in the figure, the filter core composition structure diagram, sealing ring I, sealing ring II, umbrella-shaped rubber diaphragm and upper end cover cooperate with the upper shell to form the upper end seal of the filter core, and sealing ring III cooperates with the lower end cover and lower shell assembly to form the lower end seal, so that all fuel can only enter the clean oil side after passing through the filter layer, thereby achieving the purpose of fuel filtration. The first filter layer filters particulate impurities, and the second filter layer filters water, dividing the work and cooperating to provide qualified fuel for the engine.

[0067] like Figure 5 As shown, the lower body is equipped with a water level alarm and electromagnetic drain valve of the intelligent drainage system, an intelligent heating system and a spare manual drain valve. The position relationship of each component is as follows Figure 6As shown, the water level alarm is integrally molded with a probe, and the position of the probe is consistent with that of the water level sensor. It can be used to detect the water level and output it to the drainage controller. Each component is connected to the lower shell through O-rings and self-tapping screws to realize their respective functions. The evenly distributed reinforcement ribs of the lower shell increase the structural strength on the one hand, and facilitate disassembly and maintenance of the product on the other hand. The intelligent heating system includes a temperature sensor and a heater. The specific implementation method is as follows: when the vehicle is started, the temperature sensor is started. When it is detected that the temperature is lower than the oil temperature threshold, the heating function of the heater is automatically started. When the temperature rises and reaches the set temperature, the heating is stopped. Or when the fuel temperature conditions are not met during intelligent drainage, the heating function of the heater is started.

[0068] As a preferred embodiment, the control method provided in the embodiment of the present invention is: when the temperature of the fuel in the fuel filter body is lower than the fuel temperature threshold, a start signal is sent to the heater to control the heater to start and heat the fuel in the fuel filter body to the fuel temperature threshold.

[0069] like Figure 7 As shown, after the vehicle is powered on, the controller detects whether the water level exceeds the high probe of the water level alarm for N seconds. If not, the intelligent drainage system is controlled to start working; if so, it continues to detect whether other conditions are met to release water. If all conditions are met, drainage begins, otherwise, drainage is terminated. When the water level drops to the specified level and meets the conditions, drainage stops. Specifically: the water level alarm in the intelligent drainage system collects information about water accumulation in the fuel filter and transmits it to the drainage controller. The drainage controller reads the vehicle CAN signal and obtains the ambient temperature, or obtains the fuel temperature monitored by the temperature sensor. When the CAN signal reads that the vehicle engine speed is 0 and the outdoor environment is suitable for drainage, the drainage controller releases a drainage signal to the automatic drainage valve. After receiving the drainage signal, the automatic drainage valve executes the drainage action to achieve intelligent drainage. The intelligent drainage system has other different control logics. One is a simplified version. When the alarm water level is reached, the water level alarm transmits the water level information to the cab. The driver determines whether the current state meets the conditions for draining water. If the conditions are met, the driver can click the drain button in the cab to open the electromagnetic drain valve for drainage. The function of the drainage controller can also be transferred to the vehicle ECU control.

[0070] As a preferred embodiment, the control method provided by the embodiment of the present invention is: when the water accumulation information indicates that the water level in the lower shell is higher than the upper limit of the water level and meets the drainage conditions, the electromagnetic drain valve is controlled to open for drainage until the water level in the lower shell is no higher than the lower limit of the water level, and the electromagnetic drain valve is controlled to close to stop drainage; the drainage conditions are that the vehicle's engine is in an inoperative state, the temperature state meets the drainage temperature condition and the state of the drainage flag is to allow drainage; the temperature state meets the drainage temperature condition specifically that the ambient temperature is greater than the ambient temperature threshold or the fuel temperature in the fuel filter body is greater than the fuel temperature threshold.

[0071] Furthermore, the embodiment of the present invention further improves the structure. Specifically, the embodiment of the present invention uses plastic as the material of the upper shell and the lower shell, and uses aluminum as the material of the middle shell to achieve lightweighting.

[0072] The fuel filter body in the embodiment of the present invention is provided with a connecting card plate and a first connecting ear. During installation, the connecting card plate is clamped in a connecting card seat provided on the engine housing of the vehicle, and the first connecting ear is connected to the second connecting ear provided on the engine housing of the vehicle by screws. The shape of the fuel filter body matches the recessed structure provided on the engine housing of the vehicle, saving installation space.

[0073] The beneficial effects of the technical solution of the present invention based on the above embodiments are:

[0074] 1. The product adopts a lightweight design of aluminum and plastic in structure, and the components are installed in a modular manner, which makes the product lighter and meets the development requirements of vehicle weight reduction and low power consumption as required by industry regulations.

[0075] 2. The product uses an outer filter material with high impurity separation efficiency and high air permeability, and an inner filter material made of lipophilic and hydrophobic materials. The filtered fuel fully meets the requirements for fuel cleanliness and fuel water content during engine use. At the same time, the high air permeability of the filter layer can effectively alleviate the problem of engine difficulty in starting caused by filter aggregation during engine operation.

[0076] 3. The product integrates an intelligent drainage system, which realizes automatic drainage of the product through the use of drainage controller, water level alarm and electromagnetic drain valve, solving the many inconveniences of manual drainage for end users in limited space.

[0077] 4. The product integrates an intelligent oil pumping system. The drainage controller can determine the opening and closing of the oil pump according to the drainage status of the intelligent drainage system through the processor to exhaust gas. It can also start the oil pump when the engine is started to solve the problem of difficult engine starting in extreme environments.

[0078] 5. The product integrates an intelligent heating system. When the ambient temperature is low and affects the oil flow, making it difficult to start the engine, the fuel passing through the fuel filter is heated from the bottom to ensure fuel supply to the engine. When the temperature reaches the set temperature, the heater automatically shuts off to prevent damage to the product.

[0079] 6. All integrated intelligent systems adopt modular design, which can be increased or decreased according to actual usage needs, so as to realize the standardization of product structure and platform development.

[0080] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0081] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A highly integrated intelligent fuel filter, characterized in that: include: Fuel filter body, intelligent oil pumping system, intelligent drainage system, drainage controller and intelligent heating system; The drainage controller is connected to the control terminals of the intelligent oil pumping system, the intelligent drainage system and the intelligent heating system respectively; The drainage controller and the intelligent oil pumping system are both arranged in the upper shell of the fuel filter body, and the intelligent drainage system and the intelligent heating system are arranged in the lower shell of the fuel filter body; The drainage controller is used to control the intelligent heating system to intelligently heat the fuel in the lower shell of the fuel filter body, control the intelligent drainage system to intelligently drain the fuel, and control the intelligent oil pumping system to intelligently pump the fuel. The intelligent oil pumping system includes: a pump driver, an oil pump, a first sealing ring, a second sealing ring and an oil outlet cap; The control end of the pump driver is connected to the drainage controller, and the output end of the pump driver is connected to the oil pump; A horizontal cylindrical cavity is provided in the upper shell; The oil transfer pump is disposed in the horizontal cylindrical cavity. The first sealing ring is disposed at the first end of the horizontal cylindrical cavity to prevent oil leakage. The second sealing ring is disposed between the middle portion of the oil transfer pump housing and the inner wall of the horizontal cylindrical cavity. The first end is the end where the oil outlet of the horizontal cylindrical cavity is located. The horizontal cylindrical cavity outside the shell of the oil pump and between the second end of the horizontal cylindrical cavity and the second sealing ring forms an oil suction cavity; The horizontal cylindrical cavity outside the housing of the oil pump and between the first sealing ring and the second sealing ring forms an oil outlet cavity, which is communicated with the oil outlet; The oil inlet of the oil transfer pump is located in the oil suction chamber, and the oil outlet of the oil transfer pump is located in the oil outlet chamber. When the oil transfer pump is working, the fuel is sent from the oil suction chamber to the oil outlet chamber. The oil outlet cap is arranged at one end of the filter element of the fuel filter body. The oil outlet cap has a main oil port connecting the clean oil passage and the oil outlet chamber, and an auxiliary oil port connecting the clean oil passage and the oil suction chamber. A one-way valve is installed at the main oil port to conduct one-way flow from bottom to top. In terms of controlling the intelligent oil pumping system to perform intelligent oil extraction, the drainage controller is specifically used to: When the vehicle's engine is in a starting state, a first oil pumping control signal is generated, and when the intelligent drainage system completes drainage, a second oil pumping control signal is generated; The first oil pumping control signal is used to control the operation of the oil pump to perform intelligent oil delivery to assist in starting the vehicle engine; The second oil pumping control signal is used to control the operation of the oil pump to perform intelligent oil delivery to remove gas generated during the drainage process in the fuel filter body; The intelligent drainage system includes a water level alarm and an electromagnetic drain valve; The water level alarm is arranged in the lower shell of the fuel filter body, the water level alarm is connected to the drainage controller, and the water level alarm is used to detect water accumulation information in the lower shell; The drainage controller is connected to the control end of the electromagnetic drainage valve; In terms of controlling the intelligent drainage system to perform intelligent drainage, the drainage controller is specifically used to: When the water accumulation information indicates that the water level in the lower housing is higher than the upper water level limit and the drainage condition is met, the electromagnetic drain valve is controlled to open to drain the water until the water level in the lower housing is no higher than the lower water level limit, at which time the electromagnetic drain valve is controlled to close to stop draining the water; the drainage condition is that the vehicle's engine is not in operation, the temperature condition meets the drainage temperature condition, and the drainage flag is in a state where drainage is allowed; the temperature condition meeting the drainage temperature condition is specifically that the ambient temperature is greater than the ambient temperature threshold or the fuel temperature in the fuel filter body is greater than the fuel temperature threshold; The intelligent heating system includes: a heater and a temperature sensor; The temperature sensor is connected to the drainage controller, and the drainage controller is connected to the control end of the heater; In terms of controlling the intelligent heating system to intelligently heat the fuel in the lower shell of the fuel filter body, the drainage controller is specifically used to send a start signal to the heater when the temperature of the fuel in the fuel filter body is lower than the fuel temperature threshold, thereby controlling the heater to start and heat the fuel in the fuel filter body to the fuel temperature threshold.

2. The highly integrated intelligent fuel filter according to claim 1, characterized in that: The drainage controller is connected to the vehicle controller of the vehicle via a CAN bus, and the drainage controller obtains the working status and ambient temperature of the vehicle's engine via the CAN bus.

3. The highly integrated intelligent fuel filter according to claim 2, characterized in that: The drainage controller is further configured to set the state of the drainage flag to prohibit drainage when receiving a drainage prohibition instruction, and otherwise set the state of the drainage flag to allow drainage.

4. The highly integrated intelligent fuel filter according to claim 1, characterized in that: The upper shell and the lower shell of the fuel filter body are made of plastic, and the middle shell of the fuel filter body is made of aluminum.

5. The highly integrated intelligent fuel filter according to claim 1, characterized in that: The fuel filter body is provided with a connecting clamp and a first connecting ear; During installation, the connecting card is clamped in the connecting card seat provided on the engine housing of the vehicle, and the first connecting ear is connected to the second connecting ear provided on the engine housing of the vehicle by screws; The outer shape of the fuel filter body matches the concave structure provided on the engine housing of the vehicle.

6. A control method for a highly integrated intelligent fuel filter, characterized in that: The control method is applied to the highly integrated intelligent fuel filter according to any one of claims 1 to 5, and the control method includes: When the vehicle is powered on, it is determined whether the vehicle start signal of the engine is received; When a vehicle start signal is received, a first oil pumping control signal is generated to control the operation of the oil pump of the intelligent oil delivery system to perform intelligent oil delivery to assist in starting the vehicle engine; When the vehicle start signal is not received, determining whether the water accumulation information in the lower housing of the fuel filter body indicates that the water level is higher than the upper limit; When the water accumulation information indicates that the water level in the lower shell is higher than the upper water level limit and the drainage conditions are met, the electromagnetic drain valve of the intelligent drainage system is controlled to open for drainage until the water level in the lower shell is no higher than the lower water level limit, the electromagnetic drain valve is controlled to close, drainage is stopped, and a second oil pumping control signal is generated to control the oil pump of the intelligent drainage system to perform intelligent oil delivery to remove the gas generated during the drainage process in the fuel filter body; the drainage conditions are that the vehicle's engine is in an inoperative state, the temperature state meets the drainage temperature condition and the state of the drainage flag is to allow drainage; the temperature state meets the drainage temperature condition specifically when the ambient temperature is greater than the ambient temperature threshold or the fuel temperature in the fuel filter body is greater than the fuel temperature threshold.

7. The control method of the highly integrated intelligent fuel filter according to claim 6, characterized in that: The control method further includes: When the temperature of the fuel in the fuel filter body is lower than the fuel temperature threshold, a start signal is sent to the heater of the intelligent heating system to control the heater to start and heat the fuel in the fuel filter body to the fuel temperature threshold.

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