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Method, device and system for detecting misconnection of regenerative fuel oil valve

A detection method and a technology of a detection device, which are applied in the field of data processing and can solve problems such as the inability of the DPF system to perform regeneration capabilities

Active Publication Date: 2020-06-02
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The inventor found that the shape and structure of the shut-off valve SV and the injection valve DV are basically the same, and they are installed at similar positions on the DPM. Therefore, when the wiring of the shut-off valve and the injection valve is wrong, the DPF system cannot perform regeneration ability

Method used

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  • Method, device and system for detecting misconnection of regenerative fuel oil valve
  • Method, device and system for detecting misconnection of regenerative fuel oil valve
  • Method, device and system for detecting misconnection of regenerative fuel oil valve

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Embodiment Construction

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0046] see figure 1 , figure 1 The embodiment of the present invention provides a detection method for the misconnection of the regenerative fuel valve, the detection method is applied to the regeneration control device of the particulate trap, and the regeneration control device of the particulate trap includes a first fuel valve, a second The fuel valve, the first temperature pressure sensor and the second pressure sensor, specifically, the detection method includes steps:

[00...

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Abstract

The invention provides a detecting method for inaccurate connecting of a regenerative fuel oil valve. The method is applicable to a regeneration control device of a particulate filter. The method comprises the steps of controlling a first fuel oil valve to switch on; controlling a second fuel oil valve to switch off; acquiring the first pressure value of a current first temperature pressure sensorand the second pressure of a second pressure sensor; determining whether the first fuel oil valve and the second fuel oil valve are a shut-off valve and an injection valve based on the first pressurevalue and the second pressure value; then comparing the detecting results of the first fuel oil valve and the second fuel oil valve to determine whether meeting the preset valve properties; and if not, alarming. According to the detecting method in the embodiment, the pressure value of the valves is detected through the sensors on a DPM (Data Processing Machine), and then whether the valve is subjected to inaccurate wire connection can be determined; in case of inaccurate wire connection, the alarming is performed.

Description

technical field [0001] The present application relates to the technical field of data processing, in particular to a method, device and system for detecting wrong connection of a regenerative fuel oil valve. Background technique [0002] With the gradual development of energy saving and emission reduction, at present, diesel engines need to add a DPF system to capture particulate matter, so as to reduce the number of particulate matter emitted, so that the diesel engine's emissions meet the specified emission standards. [0003] Specifically, when the amount of carbon particles captured in the DPF system reaches a certain value, it is necessary to burn the carbon particles by injecting fuel into the exhaust pipe. Therefore, the diesel engine needs to be equipped with a hardware module DPM for controlling fuel injection, which is composed of a metering unit MU and an injection unit IU. In this case, metering unit MU contains a shut-off valve SV and an injection valve DV. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N11/00F01N9/00F01N3/025
CPCF01N3/0253F01N9/002F01N11/00F01N11/002Y02T10/40
Inventor 陈玉杰张成国赵伦李震
Owner WEICHAI POWER CO LTD