Gas flow control method and device of dual-fuel engine

A dual-fuel engine, gas flow technology, applied in the direction of engine control, combustion engine, fuel injection control, etc., can solve the problems of being eliminated, high replacement and maintenance costs, pure diesel generator sets cannot meet the requirements of emission regulations, etc., and achieve improvement Low emission levels, low application and maintenance costs

Inactive Publication Date: 2016-06-01
WEICHAI POWER CO LTD
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Problems solved by technology

[0002] At present, with the implementation of high emission regulations such as National IV and National V and the strengthening of people's awareness of environmental protection, the pure diesel generator sets with electronic governors and mechanical pumps purchased early on the market have gradually failed to meet the current emission regulations. , facing the possibility of being eliminated
In addition, although the high-pressure common rail electronically controlled fuel injection system widely used in road vehicle diesel engines can meet the emission requirements of generator sets, the cost of replacement and maintenance is relatively high

Method used

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  • Gas flow control method and device of dual-fuel engine
  • Gas flow control method and device of dual-fuel engine
  • Gas flow control method and device of dual-fuel engine

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0037] figure 1 It shows a schematic flow chart of a dual-fuel engine gas flow control method provided by an embodiment of the present invention, as shown in figure 1 As shown, the gas flow control method of the dual-fuel engine in this embodiment is as follows.

[0038] 101. Acquire the current engine speed information, current power informatio...

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Abstract

The invention provides a gas flow control method and device of dual-fuel engine. The method comprises the following steps: acquiring current revolving speed information and current power information of the engine and current open degree of a gas flow control valve; inquiring required open degree of the gas flow control valve in an MAP chart according to the current revolving speed information and the current power information; controlling through proportional integral according to the current open degree and the required open degree, and outputting a driving control signal so as to control the engine to run under the required open degree of the gas flow control valve, wherein the MAP chart is a relation chart of the revolving speed of the engine and the required open degree of the gas flow control valve. The method can effectively improve emission level of the engine on the premise of relatively low modification, application and maintenance costs.

Description

technical field [0001] The invention relates to the technical field of electronic control, in particular to a method and device for controlling gas flow of a dual-fuel engine. Background technique [0002] At present, with the implementation of high emission regulations such as National IV and National V and the strengthening of people's awareness of environmental protection, the pure diesel generator sets with electronic governors and mechanical pumps purchased early on the market have gradually failed to meet the current emission regulations. , facing the possibility of being eliminated. In addition, although the high-pressure common rail electronically controlled fuel injection system widely used in road vehicle diesel engines can meet the emission requirements of generator sets, the cost of replacement and maintenance is relatively high. [0003] Therefore, how to effectively improve the engine emission level has become an urgent problem to be solved under the premise o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/00F02D19/06
CPCF02D19/06F02D41/0025F02D2200/101F05B2270/705Y02T10/30
Inventor 曹石徐帅卿李少佳周飞章王文霞
Owner WEICHAI POWER CO LTD
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