A fuel pump assembly with automatic rotational speed adjustment and its rotational speed adjustment method
An automatic adjustment, fuel pump technology, applied in pump control, engine components, machine/engine, etc., can solve the problem of high development difficulty, achieve the effect of simple implementation, prolong life and improve adaptability
Active Publication Date: 2018-04-10
SHANGHAI JTR AUTOMOTIVE COMPONENT CO LTD
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- Description
- Claims
- Application Information
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Problems solved by technology
Since the speed sensor, intake pressure sensor, fuel injection quantity and other information are stored in the engine control processor (Engine control unit, referred to as ECU), it is necessary to obtain the open protocol of the ECU and modify the relevant hardware to read the information. In addition, different engines have different controller protocols, making development difficult
Method used
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Embodiment Construction
[0037] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.
[0038] Such as figure 2 and image 3 As shown, a fuel pump assembly with automatic speed adjustment includes a fuel tank 1, a fuel pump unit, a safety valve 3, a fuel pump controller 4, and a fuel pressure sensor 5; specifically, the fuel pump unit is arranged in the fuel tank 1 , used to extract the fuel in the fuel tank 1; the safety valve 3 is set in the fuel tank 1 and connected to the fuel pump group; the fuel pump controller 4 is connected to the fuel pump group to set the fuel Target pressure value; the fuel pressure sensor 5 is connected with the fuel pump controller 4 to monitor the fuel pressure value delivered by the fuel pump group to the fuel injector in real time, compare it with the fuel target pressure value, and then feed back the comparison result to the fuel The pump contro...
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The invention discloses a fuel pump assembly for automatically adjusting rotational speed and a rotational speed adjusting method thereof. The fuel pump assembly includes a fuel tank; a fuel pump group for extracting fuel from the fuel tank; a safety valve, which is combined with the fuel pump group Connection; the fuel pump controller, the fuel pump controller is electrically connected with the fuel pump group to set the target fuel pressure value according to the working characteristics of the fuel injector; the fuel pressure sensor, the fuel pressure sensor is electrically connected with the fuel pump controller, and the To monitor the fuel pressure value delivered by the fuel pump group to the fuel injector in real time, compare it with the target fuel pressure value, and then feed back the comparison result to the fuel pump controller; the fuel pump controller adjusts the voltage of the fuel pump group according to the comparison result. . The present invention has the fuel pump assembly with the function of automatically adjusting the rotational speed, does not need to communicate with the engine control processor, does not need to change a lot of the electrical hardware of the original vehicle, and is relatively simple to implement.
Description
technical field [0001] The invention relates to the technical field of automobile fuel tanks, in particular to a fuel pump assembly with automatic speed adjustment and a speed adjustment method thereof. Background technique [0002] The fuel system is an important part of the vehicle chassis, and its function is to store and deliver fuel. The fuel pump draws fuel from the fuel tank, and sends the fuel to the fuel injector in the engine compartment through the delivery pipeline, and the fuel injector injects the fuel under a certain pressure into the combustion chamber for combustion. [0003] When working, the fuel circulates continuously in the pipeline, and part of the fuel is sent to the engine cylinder for combustion, which is commonly referred to as engine fuel consumption, and most of the rest of the fuel flows back into the fuel tank through the mechanical pressure regulating valve. Under normal working conditions, the amount of oil returned is much greater than the ...
Claims
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IPC IPC(8): F02M37/10F02M37/22F04B49/06
Inventor 陈超华陆利锋
Owner SHANGHAI JTR AUTOMOTIVE COMPONENT CO LTD