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Method and device for controlling air damper

A control method and throttle valve technology, applied in electrical control, engine control, fuel injection control, etc., can solve problems such as supercharger surge

Inactive Publication Date: 2019-11-26
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a throttle valve control method and device to solve the problem of surge in the prior art when the supercharger is cut off

Method used

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  • Method and device for controlling air damper
  • Method and device for controlling air damper
  • Method and device for controlling air damper

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Embodiment Construction

[0046] By way of the above drawings, specific embodiments of the invention have been shown and will be described in more detail hereinafter. These drawings and written descriptions are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept for those skilled in the art by referring to specific embodiments.

[0047] figure 1 A schematic diagram of the throttle control architecture provided for the embodiment of the present invention, such as figure 1 As shown: the throttle control framework in the embodiment of the present invention includes: an electronic control unit (Electronic Control Unit, ECU) 101 , an engine 102 , a supercharger 103 and a throttle 104 . ECU101 is respectively connected with engine 102, supercharger 103 and throttle valve 104, and ECU101 is responsible for transmitting control parameters to engine 102, supercharger 103 and throttle valve 104 respectively, and engine 102, supercharger 103 and throttle v...

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Abstract

The invention provides a method and device for controlling an air damper. After it is judged that an engine is in an intermediate-high load operation state, when the engine gets into a fuel cut condition, the air damper opening degree set value is obtained by inquiring a preset table according to current boost pressure and current rotating sped, the closing position of the air damper is adjusted and controlled in time according to the air damper opening degree set value, a relatively airtight space is not formed between the air damper and a booster any more, and the phenomenon of surge of thebooster is avoided.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a throttle valve control method and device. Background technique [0002] In order to realize the miniaturization, high power and low fuel consumption design of the engine, the application of supercharging technology on the engine is becoming more and more common. When the engine is running at high speed, the boost pressure of the supercharger is related to the engine speed, and the opening value of the engine throttle is determined by the torque demand. [0003] Due to the complexity of the working conditions of the whole vehicle, the supercharger needs to be designed adaptively for different working conditions. When the vehicle is working under medium and high load conditions, the accelerator is released quickly, and the throttle is closed at this time, and a large amount of high-pressure gas will accumulate in the pipeline before the throttle and after the compressor outl...

Claims

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Application Information

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IPC IPC(8): F02D41/00F02D41/26
CPCF02D41/0002F02D41/0007F02D41/26F02D2200/04F02D2200/101F02D2200/602
Inventor 曹石秦涛刘栋
Owner WEICHAI POWER CO LTD
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