A motorcycle electric injection device

Abstract

The utility model discloses a kind of motorcycle electric injection device, it includes fuel supply element, air throttle group and electronic control unit, fuel supply element is connected with fuel pipeline between the air throttle group, the lower end of the air throttle group is installed with air throttle body, the side of the air throttle body is connected in the electronic control unit, the side of the air throttle group is installed with sensor assembly.The fuel supply element is combined by electric fuel pump, fuel filter and supercharging component, realizes multistage pressurization and filtration of fuel, guarantees that fuel pressure is stable, pure, reduces injection nozzle blockage, improves fuel injection precision;Air throttle group realizes the real-time regulation of air flow by air throttle part, air throttle valve piece and air throttle switch, combined with fuel injection amount control, make air and fuel proportion matching more accurate, improve engine combustion efficiency;Sensor assembly can comprehensively and accurately monitor the air intake, temperature, oxygen content and air throttle opening of engine.

Description

Technical Field

[0001] This utility model belongs to the field of motorcycle device technology, specifically relating to a motorcycle electronic fuel injection device. Background Technology

[0002] With the continuous development of motorcycle power technology, electronic fuel injection (EFI) systems have gradually become an important alternative to traditional carburetors. EFI systems use electronic control units to precisely adjust the fuel injection quantity, optimizing engine combustion and improving power output performance and fuel economy. However, existing motorcycle EFI systems still have many technical problems in practical applications, mainly in the following aspects:

[0003] Existing fuel supply components suffer from unstable pressure and insufficient filtration capacity during fuel delivery. Single-stage electric pumps and simple fuel filters cannot guarantee a stable fuel supply, easily leading to injector clogging and reduced fuel injection accuracy, thereby affecting engine power output and combustion efficiency.

[0004] The structural design of throttle bodies generally cannot achieve precise matching between airflow and fuel injection. The adjustment response speed of traditional throttle bodies and throttle valve plates is limited, and the feedback of throttle opening signals is not timely enough. This makes it difficult to stably control the combustion efficiency of the engine under different operating conditions, affecting the overall vehicle performance and fuel consumption.

[0005] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0006] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide a motorcycle electronic fuel injection device to solve the technical problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a motorcycle electronic fuel injection device, comprising a fuel supply element, a throttle valve assembly, and an electronic control unit. A fuel line is connected between the fuel supply element and the throttle valve assembly. A throttle body is installed at the lower end of the throttle valve assembly. The electronic control unit is connected to the side of the throttle body. A sensor assembly is installed on the side of the throttle valve assembly.

[0008] Furthermore, the fuel supply element includes an electric fuel pump, a fuel filter, and a booster component. The electric fuel pump is installed in the fuel filter, the rear end of the fuel line is connected to the lower end of the electric fuel pump, and the booster component is installed at the rear end of the fuel line.

[0009] Furthermore, the lower end of the throttle assembly is connected to a throttle head, the throttle body is installed at the lower end of the throttle head, the front end of the fuel line is connected to the throttle head, the upper end of the throttle assembly is equipped with a throttle section, the lower end of the throttle section is equipped with a throttle valve plate, and a throttle switch is installed on the throttle valve plate.

[0010] Furthermore, the sensor assembly includes an oxygen sensor, a throttle position sensor, and an intake air temperature sensor. The oxygen sensor is mounted on the side of the throttle assembly, the throttle position sensor is mounted on the upper front of the oxygen sensor, and the intake air temperature sensor is mounted on the upper end of the oxygen sensor.

[0011] Furthermore, the electronic control unit is equipped with electronic sensors, and a diagnostic interface is also installed on its side.

[0012] Furthermore, a fuel gauge is installed at the front end of the fuel line, and the fuel gauge is fixedly installed on the outside of the front end of the fuel line.

[0013] This utility model has the following main advantages: The fuel supply element, through the combination of an electric fuel pump, a fuel filter, and a turbocharger, achieves multi-stage pressurization and filtration of fuel, ensuring stable and pure fuel pressure, reducing injector clogging, and improving fuel injection accuracy; The throttle assembly, through the throttle body, throttle valve plate, and throttle switch, achieves real-time adjustment of airflow, combined with fuel injection quantity control, making the air-fuel ratio more precise and improving engine combustion efficiency; The sensor assembly can comprehensively and accurately monitor the engine's intake air volume, temperature, oxygen content, and throttle opening, providing real-time data to the electronic control unit to achieve dynamic control of fuel injection and throttle adjustment; The electronic sensors inside the electronic control unit analyze the engine status in real time, and the modular and integrated design of each component effectively reduces connection points, lowers the risk of fuel leakage, and facilitates disassembly and maintenance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall connection structure of this utility model.

[0015] Figure 2 for Figure 1 An enlarged structural diagram of point A.

[0016] Reference numerals: Fuel supply element 10; Throttle body assembly 20; Electronic control unit 30; Fuel line 40; Throttle body 50; Sensor assembly 60; Electric fuel pump 11; Fuel filter 12; Boost converter 13; Throttle head 21; Throttle body 22; Throttle valve plate 23; Throttle switch 24; Oxygen sensor 61; Throttle position sensor 62; Intake air temperature sensor 63; Electronic sensor 31; Diagnostic interface 32; Fuel gauge 70. Detailed Implementation

[0017] like Figures 1 to 2 As shown, a motorcycle electronic fuel injection system includes a fuel supply element 10, a throttle body 20, and an electronic control unit 30. A fuel line 40 connects the fuel supply element 10 and the throttle body 20 for supplying fuel. A throttle body 50 is mounted on the lower end of the throttle body 20, and the electronic control unit 30 is connected to the side of the throttle body 50. The electronic control unit 30 receives signals from various sensor components and automatically adjusts the fuel injection quantity and throttle opening according to the engine's operating state, thereby achieving precise fuel injection control. A sensor assembly 60 is mounted on the side of the throttle body 20 for real-time monitoring of engine intake air volume, temperature, oxygen content, throttle angle, and other operating parameters, and transmits the detection signals to the electronic control unit 30.

[0018] In practical implementation, the fuel supply element 10 includes an electric fuel pump 11, a fuel filter 12, and a booster component 13. The electric fuel pump 11 is installed in the fuel filter 12 and is used to draw fuel from the fuel tank and initially pressurize it. The fuel filter 12 filters impurities and fine particles from the fuel, preventing injector clogging and ensuring fuel purity and injection stability. The rear end of the fuel line 40 is connected to the lower end of the electric fuel pump 11, and is used to deliver the filtered fuel to the booster component 13. The booster component 13 is installed at the rear end of the fuel line 40 and is used to perform secondary pressurization on the fuel, ensuring a stable and high pressure during injection to meet the requirements of efficient combustion. The fuel supply element 10 has a compact structure and a reasonable installation position. The integrated design of the electric fuel pump 11 and the fuel filter 12 effectively reduces fuel line connection points and lowers the risk of fuel leakage.

[0019] In practical implementation, the lower end of the throttle assembly 20 is connected to a throttle head 21, and the throttle body 50 is installed at the lower end of the throttle head 21. The front end of the fuel line 40 is connected to the throttle head 21 to deliver pressurized fuel to the throttle assembly 20 for injection and mixing. The upper end of the throttle assembly 20 is equipped with a throttle valve section 22, and the lower end of the throttle valve section 22 is equipped with a throttle valve plate 23. A throttle switch 24 is installed on the throttle valve plate 23. The throttle valve section 22 controls the airflow into the engine, and the throttle valve plate 23 inside can rotate around a central axis to adjust the amount of air entering. The throttle switch 24 detects the opening and closing state of the throttle valve plate 23 and feeds the signal back to the electronic control unit in real time. Through the above design, the throttle assembly 20 achieves real-time matching of airflow and fuel injection quantity, ensuring a more precise and stable combustion process. The throttle body 22, throttle valve plate 23 and throttle switch 24 adopt a modular installation structure, which is convenient for disassembly and maintenance. At the same time, the connection position between the throttle head 21 and the fuel line 40 is optimized, which can effectively reduce fuel flow resistance, improve injection response speed, and further improve the engine's power output performance and fuel economy.

[0020] In practical implementation, the sensor assembly 60 includes an oxygen sensor 61, a throttle position sensor 62, and an intake air temperature sensor 63. The oxygen sensor 61 is mounted on the side of the throttle assembly 20 to detect the oxygen content in the exhaust gas, thus reflecting the engine's combustion state. The throttle position sensor 62 is mounted on the upper front of the oxygen sensor 61 to monitor the opening of the throttle valve plate 23 in real time and feed the signal back to the electronic control unit 30. The intake air temperature sensor 63 is mounted on the upper end of the oxygen sensor 61 to detect the temperature of the air entering the engine. Through this arrangement, the sensor assembly 60 can comprehensively and accurately monitor the engine's operating state, providing real-time data to the electronic control unit 30, achieving precise matching of fuel injection quantity and airflow, and improving the engine's combustion efficiency and power output performance.

[0021] In practical implementation, the electronic control unit 30 is internally equipped with electronic sensors 31 to receive various signals from the sensor assembly 60 and perform real-time analysis and calculation of the engine's operating status, thereby controlling the adjustment of fuel injection quantity and throttle opening. The electronic control unit 30 also has a diagnostic interface 32 installed on its side for communication with external testing equipment or maintenance tools to achieve fault diagnosis, data reading, and system parameter adjustment. Through the above design, the electronic control unit 30 can achieve precise monitoring and control of the engine's operating status, improving the performance stability and fuel economy of the motorcycle engine.

[0022] In practical implementation, a fuel gauge 70 is installed at the front end of the fuel line 40. The fuel gauge 70 is fixedly installed on the outer side of the front end of the fuel line 40 to monitor fuel flow and pressure changes in real time and transmit the monitoring data to the electronic control unit 30. Through the real-time monitoring of the fuel gauge 70, the electronic control unit 30 can adjust the fuel injection strategy in a timely manner to ensure the stability and precision of fuel supply, thereby further improving the engine's power output performance and fuel economy.

[0023] In summary, the fuel supply element 10, through the combination of the electric fuel pump 11, fuel filter 12, and turbocharger 13, achieves multi-stage pressurization and filtration of fuel, ensuring stable and pure fuel pressure, reducing injector clogging, and improving fuel injection accuracy. The throttle assembly 20, through the throttle body 50, throttle valve plate 23, and throttle switch 24, achieves real-time adjustment of airflow, combined with fuel injection quantity control, making the air-fuel ratio more precise and improving engine combustion efficiency. The sensor assembly 60 can comprehensively and accurately monitor the engine's intake air volume, temperature, oxygen content, and throttle opening, providing real-time data to the electronic control unit 30 to achieve dynamic control of fuel injection and throttle adjustment. The electronic sensor 31 inside the electronic control unit 30 analyzes the engine status in real time. The modular and integrated design of each component effectively reduces connection points, lowers the risk of fuel leakage, and facilitates disassembly and maintenance.

Claims

1. A motorcycle electronic fuel injection device, characterized in that, It includes a fuel supply element (10), a throttle valve assembly (20), and an electronic control unit (30). A fuel line (40) is connected between the fuel supply element (10) and the throttle valve assembly (20). A throttle body (50) is installed at the lower end of the throttle valve assembly (20). The electronic control unit (30) is connected to the side of the throttle body (50). A sensor assembly (60) is installed on the side of the throttle valve assembly (20).

2. The motorcycle electronic fuel injection device according to claim 1, characterized in that, The fuel supply element (10) includes an electric fuel pump (11), a fuel filter (12), and a booster (13). The electric fuel pump (11) is installed in the fuel filter (12), the rear end of the fuel line (40) is connected to the lower end of the electric fuel pump (11), and the booster (13) is installed at the rear end of the fuel line (40).

3. The motorcycle electronic fuel injection device according to claim 2, characterized in that, The lower end of the throttle assembly (20) is connected to the throttle head (21), the throttle body (50) is installed at the lower end of the throttle head (21), the front end of the fuel line (40) is connected to the throttle head (21), the upper end of the throttle assembly (20) is equipped with a throttle section (22), the lower end of the throttle section (22) is equipped with a throttle valve plate (23), and a throttle switch (24) is installed on the throttle valve plate (23).

4. The motorcycle electronic fuel injection device according to claim 3, characterized in that, The sensor assembly (60) includes an oxygen sensor (61), a throttle position sensor (62), and an intake air temperature sensor (63). The oxygen sensor (61) is mounted on the side of the throttle assembly (20), the throttle position sensor (62) is mounted on the upper front of the oxygen sensor (61), and the intake air temperature sensor (63) is mounted on the upper end of the oxygen sensor (61).

5. The motorcycle electronic fuel injection device according to claim 4, characterized in that, The electronic control unit (30) has an electronic sensor (31) installed inside, and a diagnostic interface (32) is also installed on the side of the electronic control unit (30).

6. The motorcycle electronic fuel injection device according to claim 5, characterized in that, A fuel gauge (70) is installed at the front end of the fuel line (40), and the fuel gauge (70) is fixedly installed on the outside of the front end of the fuel line (40).

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