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Self-adaptive oil injection control system and method for biodiesel engine

A biodiesel and control system technology, which is applied in engine control, engine components, combustion engines, etc., can solve the problems of reducing the emission of biodiesel engines and the large emission of the engine.

Active Publication Date: 2021-01-05
TONGJI UNIV
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  • Abstract
  • Description
  • 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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  • Self-adaptive oil injection control system and method for biodiesel engine
  • Self-adaptive oil injection control system and method for biodiesel engine
  • Self-adaptive oil injection control system and method for biodiesel engine

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention 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, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts 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, it includes 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 injector The controllers 4 are respectively connected with the control module 3, and the control module 3 is embedded with an adaptive fuel inje...

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Abstract

The invention relates to a self-adaptive oil injection control system and method for a biodiesel engine. The control system comprises an exhaust pipe, a gas sensor, a control module and an oil injector, wherein the exhaust pipe is connected to the oil injector; the gas sensor is arranged in the exhaust pipe; and the gas sensor and the oil injector are connected to the control module. According tothe control method, an idling steady-state NOx emission signal generated when the engine uses biodiesel is directly compared with a pure diesel idling steady-state NOx emission value, and the main injection angle of advance of the engine is controlled in a closed-loop mode so as to reduce NOx emission in exhaust. Compared with the prior art, the self-adaptive oil injection control system and method have the advantages of no need of biodiesel proportion 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 adaptive fuel injection control system and control method. Background technique [0002] Compared to conventional diesel engines, biodiesel engines have higher NO x characteristics of emissions. Therefore, how to reduce NO x Emissions are a research focus of biodiesel engines. The existing patent CN201610826273.0 obtains modified biodiesel by improving the preparation process of biodiesel, thereby achieving the purpose of reducing NOx emissions; the existing patent CN201810091332.3 improves the ratio and preparation method of biodiesel to greatly reduce the Harmful components in exhaust gas. It can be seen that the above-mentioned patents reduce the NO of biodiesel engines by directly improving the fuel. x emission. However, at present, the high NO in biodiesel engines is solved by directly adopting biodiesel engine internal purif...

Claims

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Application Information

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Patent Type & Authority Applications(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