A diesel filter assembly and an electric pump assembly with bidirectional communication function thereof

Abstract

The application discloses a diesel filter assembly and an electric pump assembly with bidirectional communication function thereof, and relates to the technical field of fuel filtering systems for vehicles, which comprises a connecting base, an electric pump, a tank body and a combined controller, the connecting base is provided with an oil outlet, and a pressure sensor is arranged at the position of the oil outlet; and a composite integrated fuel filter element is arranged in the tank body. The diesel filter assembly and the electric pump assembly with bidirectional communication function thereof can perform bidirectional communication control on the running state of the electric pump of the diesel filter assembly, improve the use performance of the engine, reduce starting failures, prolong the service life of core components such as the electric pump, and meet the actual use requirements of the whole machine, and have the characteristics of precise and reliable communication control, stable component performance, long-period working and the like, and have high practicability and market promotion value.

Description

Technical Field

[0001] This invention relates to the field of automotive fuel filtration system technology, and in particular to a diesel filter assembly and its electric pump assembly with bidirectional communication function. Background Technology

[0002] Internal combustion engines use various fluid media such as fuel and lubricants throughout their lifespan. These fluid media inevitably contain some impurities and contaminants, and different types of filters are needed to remove them. Some fuel filters also include an electric pump, which drives the fuel to quickly and completely fill the filter when the vehicle (especially diesel vehicles) is started, expelling air from the lines and ensuring a successful start on the first attempt.

[0003] Currently, there are generally two types of fuel electric pumps commonly used in the market. One type of electric pump has only two electrical connection ports: positive and negative power lines. After the power is turned on, the electric pump will automatically stop after working for a certain period of time. The other type of electric pump has three electrical connection ports: positive and negative power lines and a control signal input line. The control signal is output by the vehicle controller and is generally a high or low level. The internal control circuit of the electric pump passively receives the control signal, judges the level of the control signal, and drives the electric pump to run or stop according to the preset rules.

[0004] In the above methods, the electric pump is either completely programmed or passively receives external input levels and then autonomously controls its working state according to set rules. Neither of the existing control methods can combine the actual system requirements of engine operating conditions to complete two-way interactive communication, thereby adjusting the electric pump's operating state in real time to maximize engine performance.

[0005] In summary, inventing an electric pump with bidirectional communication capabilities to achieve bidirectional information exchange is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a diesel filter assembly and its electric pump assembly with bidirectional communication function to solve the problems existing in the prior art. It has the advantages of continuous and accurate communication control, reliable and stable component performance, and core components that can meet long-term operation requirements. It can not only improve the performance of the engine and reduce starting failures, but also extend the service life of core components such as electric pumps, and greatly reduce the after-sales maintenance costs of vulnerable parts for end users.

[0007] To achieve the above objectives, the present invention provides the following solution:

[0008] This invention provides a diesel filter assembly and an electric pump assembly with bidirectional communication function, including a connecting base, an electric pump fixedly mounted on the connecting base, a tank fixedly connected to the connecting base, and a combined controller communicatively connected to an engine, the electric pump, and a pressure sensor. The connecting base has an oil outlet, and a pressure sensor is provided at the oil outlet. A composite integrated fuel filter element is provided inside the tank.

[0009] Preferably, the combined controller includes a first communication controller mounted on the connecting base, the first communication controller being connected to the external transmission interface of the electric pump and to the vehicle communication line.

[0010] Preferably, the combined controller further includes a second communication controller disposed on the connecting base, the second communication controller being communicatively connected to the pressure sensor and the electric pump.

[0011] Preferably, the pressure sensor includes a pressure-sensing area that can contact the internal fuel, a data analysis area for converting the pressure value into a digital-analog signal, and a transmission area that is communicatively connected to the second communication controller.

[0012] Preferably, the pressure sensor is threadedly connected to the oil outlet.

[0013] The present invention achieves the following technical effects compared to the prior art:

[0014] (1) The diesel filter assembly and the electric pump assembly with bidirectional communication function provided by the present invention change the control mode of the electric pump from passively receiving signals and then operating in a programmed manner to actively receiving the output signals of the engine electronic control system and the pressure change signals of the low-pressure fuel system to adjust the electric pump status in a timely manner, so as to meet the operating requirements of the whole machine and improve the working performance of the engine.

[0015] (2) The diesel filter assembly and the electric pump assembly with bidirectional communication function provided by the present invention, by setting a first communication controller and a second communication controller, the electric pump with bidirectional communication function can not only actively identify the working requirements for electric pump status control under the engine operating system, but also has the working requirements for electric pump status control under the pressure interaction control with the fuel low pressure system. The bidirectional communication control function makes the working status of the electric pump more reliable and more accurate.

[0016] (3) The diesel filter assembly and the electric pump assembly with bidirectional communication function provided by the present invention have the engine ECU electrical signal directly input to the first communication controller, and the pressure sensor installed on the oil outlet side is connected to the second communication controller through an external transmission signal line. Through reasonable structural layout design and circuit design, the bidirectional communication control module is integrated and arranged inside the electric pump main controller, which has the characteristics of compact structure and beautiful layout.

[0017] (4) The diesel filter assembly and the electric pump assembly with bidirectional communication function provided by the present invention realize the on-demand fuel supply function for the first time in the engine fuel system, effectively extending the service life of valuable components such as electric pumps while maximizing engine performance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the overall structure of the diesel filter assembly and its electric pump assembly with bidirectional communication function provided by the present invention.

[0020] Figure 2 The signal connection diagram of the electric pump provided by the present invention;

[0021] Figure 3 Functional partition diagram of the pressure sensor provided by the present invention;

[0022] Figure 4 An external layout diagram of the electric pump provided for this invention;

[0023] Figure 5 The working control logic diagram of the electric pump provided by the present invention;

[0024] In the diagram: 1-Electric pump; 2-Pressure sensor; 3-Connecting base; 4-Composite integrated fuel filter; 5-Tank; 6-Fuel outlet; 7-Transmission signal line; 8-Wire; 9-External transmission interface of electric pump; 10-Second communication controller; 11-First communication controller; 12-Combined controller; 13-Pressure sensing area; 14-Data analysis area; 15-Transmission area. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] The purpose of this invention is to provide a diesel filter assembly and its electric pump assembly with bidirectional communication function to solve the problems existing in the prior art. It has the advantages of continuous and precise communication control, reliable and stable component performance, and core components that can meet long-cycle operation requirements. It can not only improve the performance of the engine and reduce starting failures, but also extend the service life of core components such as electric pumps, and greatly reduce the after-sales maintenance costs of vulnerable parts for end users.

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] This invention provides a diesel filter assembly and its electric pump assembly with bidirectional communication function, such as... Figures 1-4 As shown, in this embodiment, the system includes a connecting base 3, an electric pump 1 fixedly mounted on the connecting base 3, a cylindrical tank 5 fixedly connected to the connecting base 3, and a combined controller 12 that is communicatively connected to the engine, the electric pump 1, and the pressure sensor 2. The first communication controller 11 and the second communication controller 10 are integrated into one component to form the combined controller 12, which is fixedly mounted on the electric pump 1 to form an integral structure. The two communication controllers can independently control the operating status of the electric pump 1 to achieve bidirectional communication control. The connecting base 3 has an oil outlet 6, and a pressure sensor 2 is installed at the oil outlet 6. A composite integrated fuel filter element 4 is installed inside the tank 5.

[0029] The present invention provides a diesel fuel filter assembly and an electric pump assembly with bidirectional communication function. The electric pump 1 has a built-in communication controller 10 and 11 installed in the oil chamber of the connecting base 3. The pressure sensor 2 is installed at the oil outlet 6 of the connecting base 3 and is connected to the internal oil circuit. During use, the operation of the electric pump 1 can be controlled by communication signals set internally by the electric pump 1, and can also be controlled by communication signals fed back by the pressure sensor 2 in the oil circuit, realizing linkage control with the whole machine. The present invention provides bidirectional communication control of the operation of the electric pump 1 of the fuel filter assembly, which not only improves the performance of the engine and reduces starting failures, but also extends the service life of core components such as the electric pump. The bidirectional communication control of the electric pump fuel filter assembly better meets the actual use needs of the whole machine, and has the characteristics of precise and reliable communication control, stable component performance, and long cycle operation, and has high practicality and market promotion value.

[0030] The combined controller 12 includes a first communication controller 11 mounted on the connecting base 3. The first communication controller 11 is connected to the external transmission interface 9 of the electric pump and is connected to the vehicle communication line via a wire 8. The first communication controller 11 can receive engine-related information sent from the vehicle and can also send the electric pump's operating status information to the vehicle. The first communication controller 11 maintains real-time communication with the engine speed status and, in conjunction with changes in the speed signal, adjusts accordingly. Figure 5 The program and operating logic shown control the start and stop of electric pump 1.

[0031] The combined controller 12 also includes a second communication controller 10 disposed on the connecting base 3. The second communication controller 10 is communicatively connected to the pressure sensor 2 and to the electric pump 1. The second communication controller 10 is used to receive digital and analog signals transmitted by the pressure sensor 2 and control the start and stop of the electric pump 1 according to the set analog signal limit parameters.

[0032] The pressure sensor 2 includes a pressure-sensing area 13 that can contact the fuel inside the oil outlet chamber, a data analysis area 14 for converting the pressure value into a digital analog signal, and a transmission area 15 that is connected to the second communication controller 10. The transmission area 15 transmits the analog signal to the second communication controller 10 through a fixed plug-in port via a transmission signal line 7.

[0033] The pressure sensor can be threaded onto the oil outlet, but is not limited to other connection and installation methods.

[0034] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A diesel filter assembly and its electric pump assembly with bidirectional communication function, characterized in that: include: A connecting base is provided, and an oil outlet is provided on the connecting base. A pressure sensor is installed at the location of the oil outlet. An electric pump that is fixedly mounted on the connecting base; A tank body fixedly connected to the connecting base, wherein a composite integrated fuel filter element is provided inside the tank body; The system includes a combined controller that communicates with the engine, the electric pump, and the pressure sensor. The combined controller includes a first communication controller mounted on the connection base. This first communication controller is connected to the external transmission interface of the electric pump and to the vehicle's communication lines. It can receive engine-related information from the vehicle and can also transmit the electric pump's operating status information to the vehicle. The combined controller also includes a second communication controller mounted on the connection base. This second communication controller communicates with the pressure sensor and the electric pump. By configuring the first and second communication controllers, the system can actively identify the electric pump's status control under engine operating conditions and can also control the electric pump's status under pressure interaction control of the low-pressure fuel system.

2. The diesel filter assembly and its electric pump assembly with bidirectional communication function according to claim 1, characterized in that: The pressure sensor includes a pressure-sensing area that can contact the internal fuel, a data analysis area for converting the pressure value into a digital-analog signal, and a transmission area that is communicatively connected to the second communication controller.

3. The diesel filter assembly and its electric pump assembly with bidirectional communication function according to claim 1, characterized in that: The pressure sensor is threadedly connected to the oil outlet.

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