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Supercharger switching control method and system

A control method and supercharger technology, applied in electrical control, engine control, fuel injection control, etc., can solve the problems of supercharger deterioration degree, efficiency switching, wear deterioration, etc., to avoid rapid wear and deterioration, and prolong use. Longevity and effect of reducing replacement frequency

Pending Publication Date: 2020-05-19
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to at least solve the problem that the long-term use of a supercharger leads to serious wear and tear deterioration due to the inability to switch according to the degree of deterioration and efficiency of the supercharger

Method used

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  • Supercharger switching control method and system
  • Supercharger switching control method and system
  • Supercharger switching control method and system

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Embodiment Construction

[0062] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0063] It should be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may also be meant to include the plural forms unless the context clearly dictates otherwise. The terms "comprising", "comprising", "containing" and "having" are inclusive and thus indicate the presence of stated...

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Abstract

The invention belongs to the technical field of engines, and particularly relates to a supercharger switching control method and system. The supercharger switching control method comprises the steps of controlling T15 of an engine to be powered on, judging whether a supercharger sequence changes or not, calculating the first deterioration efficiency of a first supercharger according to the condition that the supercharger sequence does not change, determining the supercharger switching sequence according to the condition that the first deterioration efficiency meets a first preset condition, calculating the second deterioration efficiency of a second supercharger according to the condition that the supercharger sequence changes, and determining the supercharger switching sequence accordingto the condition that the second deterioration efficiency meets a second preset condition. According to the supercharger switching control method provided by an embodiment of the invention, the deterioration efficiency of the first supercharger and the deterioration efficiency of the second supercharger are calculated separately, the deterioration degree of the first supercharger and the deterioration degree of the second supercharger can be determined, whether supercharger switching is conducted or not is determined according to the deterioration degree, rapid abrasion caused by long-term useof one supercharger is avoided, and the supercharger replacement frequency is reduced.

Description

technical field [0001] The invention belongs to the technical field of engines, and in particular relates to a control method and system for supercharger switching. Background technique [0002] This section provides background information related to the present disclosure only and is not necessarily prior art. [0003] The sequential supercharging system is a supercharging system composed of two or more turbochargers connected in parallel. As the speed and load of the supercharged engine increase, they are put into operation in sequence. When the speed and load are lower than a certain set value, the exhaust gas of one or several supercharger turbines and the air supply of the compressor are cut off, and when the engine speed and load are higher than a certain set value, the cut off one One or several superchargers are put back into service. In this way, under a certain working condition, the supercharger is cut in according to different working conditions to meet the eng...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D23/00F02D41/00F02B37/12F02B37/007
CPCF02B37/007F02B37/12F02D23/00F02D41/0007Y02T10/12
Inventor 董玲华李云霞鹿文慧许帅
Owner WEICHAI POWER CO LTD
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