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A biological diesel engine adaptive fuel injection control system and control method

A technology of biodiesel and control method, which is applied in the direction of engine control, engine components, combustion engine, etc., can solve the problem of reducing the emission of biodiesel engine and large emission of the engine, so as to ensure the stability of work and the requirements of emission reduction and efficiency high effect

Active Publication Date: 2022-08-09
TONGJI UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0003] It can be seen that, in the prior art, aiming at reducing biodiesel engine NO x The problem of large emissions is all studied through the biodiesel itself, and there is no control system and control method for the engine to reduce the NO of the biodiesel engine. x emissions

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  • A biological diesel engine adaptive fuel injection control system and control method
  • A biological diesel engine adaptive fuel injection control system and control method
  • A biological diesel engine adaptive fuel injection control system and control method

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Embodiment Construction

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0037] A biodiesel engine adaptive fuel injection control system, its structure is as follows figure 1 As shown, including exhaust pipe 1, gas sensor 2, control module 3 and fuel injector 4, exhaust pipe 1 is connected with fuel injector 4, gas sensor 2 is installed in exhaust pipe 1, gas sensor 2 and fuel injection The devices 4 are respectively connected with the control module 3, and the control module 3 is embedded with an adaptive fuel inj...

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Abstract

The invention relates to an adaptive fuel injection control system and a control method for a biodiesel engine. The control system includes an exhaust pipe, a gas sensor, a control module and a fuel injector. The exhaust pipe is connected with the fuel injector, and the gas sensor is installed on the exhaust pipe. In the pipe, the gas sensor and the fuel injector are respectively connected with the control module. Control Method Directly Through Engine Idle Steady-State NO When Using Biodiesel x Emission Signals and Steady-State NO at Idle Speed ​​of Pure Diesel x The emission values ​​are compared, and the main injection advance angle of the engine is controlled in a closed loop to reduce the NO in the exhaust. x emission. Compared with the prior art, the present invention has the advantages of no need for biodiesel ratio detection, high efficiency, good effect, and the like.

Description

technical field [0001] The invention relates to the technical field of biodiesel fuel injection control, in particular to a biodiesel engine self-adaptive fuel injection control system and a control method. Background technique [0002] Biodiesel engines have higher NO than conventional diesel engines x Emission characteristics. Therefore, how to reduce NO x Emissions are a research focus for biodiesel engines. The existing patent CN201610826273.0 obtains modified biodiesel by improving the preparation process of biodiesel, so as to achieve the purpose of reducing NOx emission; the existing patent CN201810091332.3 improves the proportion and preparation method of biodiesel to greatly reduce the engine Harmful components in exhaust gas. It can be seen that the above patents all reduce NO in biodiesel engines by directly improving the fuel. x emission. However, at present, the high NO in biodiesel engine is solved by directly adopting the in-engine purification technolog...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/40F02D41/14
CPCF02D41/40F02D41/1461F01N2560/026F01N2900/1402F01N2900/0402F01N2610/146F01N2900/0408F01N9/00F02D41/1402F02D41/0025F02D19/0652F02D19/081F01N3/208F01N11/00F01N2900/1614F02D41/146
Inventor 楼狄明赵瀛华张允华房亮唐远贽
Owner TONGJI UNIV
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