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A control method, device and vehicle of a variable-section turbocharger

A turbocharger and control method technology, applied in the direction of machines/engines, combustion engines, internal combustion piston engines, etc., can solve problems such as sticking, and achieve the effect of avoiding sticking failures

Active Publication Date: 2021-12-28
GREAT WALL MOTOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention aims to propose a control method, device and vehicle of a variable-section turbocharger, so as to solve the problem that the variable-section turbocharger in the prior art is prone to sticking due to the adhesion of carbon deposits The problem

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  • A control method, device and vehicle of a variable-section turbocharger
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  • A control method, device and vehicle of a variable-section turbocharger

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Embodiment Construction

[0051] Embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the drawings, it should be understood that the present application can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this application can be understood more thoroughly, and will fully convey the scope of this application to those skilled in the art.

[0052] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0053] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0054] see figure 1 , shows a schematic flowchart of a method for controlling a variable-section turbocharger provided by an embodiment of the present inv...

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Abstract

The present invention provides a control method, device and vehicle of a variable section turbocharger, wherein the method is applied to a vehicle, and the vehicle includes an engine with a variable section turbocharger, and the variable section The turbocharger includes a nozzle ring, and the method includes: acquiring target state information of the engine, the target state information is related to the engine state; when the target state information meets a preset condition, controlling the nozzle ring to execute Self-cleaning operation; the self-cleaning operation includes controlling the nozzle ring to reciprocate and switch between the fully open state and the fully closed state for a preset number of times according to a preset frequency. The invention utilizes the drastic change of the opening of the nozzle ring to generate jitter, thereby removing the carbon deposit attached to the nozzle ring, realizing the self-cleaning of the nozzle ring, avoiding the stuck fault of the nozzle ring, and solving the problem of the variable section turbocharger in the prior art. Compressors are prone to sticking problems due to carbon deposits.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a control method, device and vehicle of a variable-section turbocharger. Background technique [0002] Currently, because the variable geometry turbocharger (Variable Geometry Turbocharger, VGT) not only increases the power of the engine, but also can reduce the emission pollution of the engine, it is widely used in the fuel vehicle engine. [0003] Different from the traditional wastegate supercharger, the VGT has no bypass valve setting, the exhaust gas sucked by it directly passes through the turbine, and a set of nozzles that can change the section of the turbine chamber intake port and the blowing direction of the intake air is installed in the volute ring device. The nozzle ring device can adjust the angle according to the different exhaust flow to obtain the maximum energy, and the concentric shaft drives the compressor to force fresh air into the cylinder to increase...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02B37/24F01D17/16F01D25/00
CPCF02B37/24F01D17/16F01D25/002Y02T10/12
Inventor 谭振东晏双鹤王岩黄松刘云辉杨金鹏陈海岩韩广华谷凌志赵普天董清泉顾亚松戴保绅张召胡宇辰谷建毅侯文浩付东波俞杰王伟张德胜肖姗姗张鹏尚运
Owner GREAT WALL MOTOR CO LTD
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