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Method for preventing heat injury of dosing module, controller and urea exhaust purification system

A purification system and thermal damage technology, which is applied to the electronic control of exhaust treatment devices, exhaust treatment, exhaust devices, etc., can solve the problems of increased risk of thermal damage to distribution modules and lack of cooling water.

Inactive Publication Date: 2015-06-03
HYUNDAI MOTOR CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] Therefore, when UDS is applied to increase the efficiency of SCR to eliminate NOx and a clutch water pump to improve fuel efficiency is applied, the lack of cooling water amount depending on the operating conditions of the clutch water pump becomes serious, and thus the risk of thermal damage to the dosing module has to increase

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  • Method for preventing heat injury of dosing module, controller and urea exhaust purification system
  • Method for preventing heat injury of dosing module, controller and urea exhaust purification system
  • Method for preventing heat injury of dosing module, controller and urea exhaust purification system

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Embodiment Construction

[0034] Hereinafter, a vehicle control system and an operating method thereof according to an embodiment of the present invention will be described with reference to the accompanying drawings. Elements are conceptually shown in the accompanying drawings to describe the concept of the present invention, and descriptions of known elements among the elements are omitted.

[0035] figure 1 An operational flow for preventing thermal damage to a distribution module according to an embodiment of the present invention is shown. A case in which urea is used as a reducing agent will be described below.

[0036] Such as figure 1 As shown, by determining the required cooling water cooling capacity of S10 and determining the cooling capacity of the engine cooling water of S20 when the required cooling water cooling capacity in S30>the cooling capacity of the engine cooling water, and by as in S50 A logic circuit for preventing thermal damage of the distribution module is implemented by f...

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Abstract

The invention discloses a method for preventing heat injury of a dosing module, a controller and a urea exhaust purification system. The method for preventing heat injury of the dosing module may include: (a) calculating the cooling amount of cooling water required by preventing heat injury of the dosing module that ejects a reductant, (b) calculating the cooling amount of cooling water of an engine which changes according to operation of a clutch water pump, (c) checking the operating state of the clutch water pump by comparing the required cooling amount of cooling water with the cooling amount of cooling water of the engine, and (d) when the clutch water pump is operated under the condition that the required cooling amount of cooling water is larger than the cooling amount of cooling water of the engine, switching the clutch water pump to closure to stop operation thereof.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2013-0149240 filed on December 3, 2013, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] Exemplary embodiments of the present invention relate to exhaust purification systems, and more particularly, to a method of preventing thermal damage to a dosing module, a controller, and a urea exhaust purification system having the controller by integrating clutch water pump operation with The dosing module of the urea dosing system (UDS) is connected to prevent the lack of engine cooling water circulating the dosing module. Background technique [0004] In general, exhaust gases from vehicles may contain a large number of pollutants to be regulated, in particular exhaust gases from diesel engines may contain NOx, Co, soot, particulate matter, etc., and their elimination is therefore enacted by law. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N9/00
CPCF01N3/043F01N2610/02F01N2610/11F01N2610/1453F01P3/20Y02T10/12F01N3/18F01N9/00
Inventor 金永基
Owner HYUNDAI MOTOR CO LTD
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