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Gas machine control method and device

A control method and a technology of a control device, applied in the field of machinery, can solve the problems of energy waste of supercharger boosting capacity, increased cost and complexity, and reduced working efficiency of gas machines, so as to ensure working efficiency and solve temperature adaptability. Effect

Active Publication Date: 2022-06-28
WEICHAI POWER CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the treatment method of intake bypass or exhaust bypass requires not only a supercharger assembly with a bypass valve, but also a supercharger model with a very powerful supercharging capacity, which increases the cost and complexity on the one hand. On the other hand, excessive supercharger boosting capacity will also cause energy waste, thereby reducing the working efficiency of the gas machine
It can be seen that the treatment method of intake bypass or exhaust bypass cannot solve the problem of temperature adaptability of the turbocharger selected by the gas engine.

Method used

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  • Gas machine control method and device

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Embodiment Construction

[0052] 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 only a 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 efforts shall fall within the protection scope of the present invention.

[0053]In this application, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also no Other elements expressly listed, or which are also inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phr...

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Abstract

The present invention provides a control method and device for a gas machine, comprising: obtaining the actual intake temperature of the gas machine; querying a comparison table according to the actual intake temperature, and obtaining the calculation coefficient corresponding to the actual intake temperature ; wherein, the comparison table is pre-configured with the corresponding relationship between the intake temperature of the gas engine and the calculation coefficient; according to the calculation coefficient, each air-fuel ratio in the air-fuel ratio MAP table is updated; wherein the air-fuel ratio The MAP table includes: each operating parameter of the gas machine and the air-fuel ratio corresponding to each operating parameter; the operating parameter includes a speed parameter and a power parameter; the air-fuel ratio MAP table is updated to control the gas machine running.

Description

technical field [0001] The invention relates to the technical field of machinery, in particular to a control method and device for a gas machine. Background technique [0002] With the continuous development of science and technology, gas engines using gas as fuel are more and more widely used in various fields. As a kind of engine, a gas engine also needs to be equipped with a natural supercharger. However, in the current market, the supercharger selected for the gas engine usually cannot take into account the high temperature and low temperature environment; that is, if it is selected according to the high temperature environment If the supercharger is used in a low temperature environment, the supercharger will have a surge problem. If the supercharger is selected according to the low temperature environment, the supercharging capacity of the supercharger will be insufficient in a high temperature environment. [0003] At this stage, for the problem of temperature adapta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/14
CPCF02D41/1475F02D41/0007
Inventor 王令金孔龙徐清祥许有豹
Owner WEICHAI POWER CO LTD
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