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Method for diagnosing a system for storing a gas stored by sorption on a compound

A diagnostic method and compound technology, applied in the field of on-board gas storage system, hydrogen storage system diagnosis, ammonia storage system diagnosis, can solve problems such as large volume, high cost of pressure sensors and regulators, etc.

Inactive Publication Date: 2015-04-22
INERGY AUTOMOTIVE SYST RES (SA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these pressure sensors and regulators are costly and bulky (relative to temperature sensors)

Method used

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  • Method for diagnosing a system for storing a gas stored by sorption on a compound
  • Method for diagnosing a system for storing a gas stored by sorption on a compound
  • Method for diagnosing a system for storing a gas stored by sorption on a compound

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Embodiment Construction

[0037] Refer to the following Figure 1 to Figure 17 To illustrate an example where the gas stored on the compound by adsorption is ammonia. Of course, in an embodiment variant, this gas can be any other type of gas, and in particular hydrogen.

[0038] Such as figure 1 As shown, an engine 1 of a vehicle is controlled by an electronic calculator 2 (sometimes referred to as "Engine Control Unit", abbreviated as ECU). Engine 1 cooperates with SCR system 3 . On exiting the engine, the exhaust gases 11 are directed towards an ammonia injection module 31 where ammonia 12 is mixed with the exhaust gases 11 . The mixture 13 of ammonia and exhaust gas then passes through the SCR catalyst 32 which allows the reduction of nitrogen oxides (NOx) with the ammonia. The cleaned exhaust gas 14 is then directed towards an exhaust outlet.

[0039] In this embodiment, the SCR system 3 includes an ammonia storage system 5 . The storage system 5 comprises a container 54 in which a compound 5...

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PUM

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Abstract

The invention proposes a method for diagnosing a system for storing a gas, the gas being stored by sorption on a compound, the system being mounted onboard a vehicle and comprising a tank capable of containing the compound and a control device capable of controlling a heating device in order to increase the temperature of the compound in such a way as to release the gas. The control device is such that it obtains (E21) a set of information comprising at least one measurement of the temperature of the system, then carries out an estimation (E22) of the gas pressure in the system by using a predetermined kinetic model of desorption of the gas.

Description

technical field [0001] The invention relates to a diagnostic method of a gas storage system, wherein said gas storage system is preferably mounted on a motor vehicle. [0002] In particular, but not exclusively, the invention is applicable to the diagnosis of ammonia storage systems. [0003] Non-exclusively, the invention is also applicable to the diagnosis of hydrogen storage systems. [0004] A specific case of an ammonia storage system comprising a plastic storage element is described below. Ammonia is used, for example, to be injected into the exhaust lines of vehicles to reduce the amount of nitrogen oxides (NOx) in the exhaust gases. Of course, the present invention is applicable to any other type of on-board gas storage system in which it is desired to obtain the gas pressure and / or to obtain the diagnosis result of its operating state. More generally, the invention is applicable to any gas (ammonia, hydrogen, etc.) that can be stored on a compound by sorption. Ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01C1/00F17C11/00F17C13/02F01N9/00F01N3/20B01J20/04
CPCY02E60/321F01N3/208B01J20/046F01N2900/1811F01N2610/06F01N2610/10F17C11/005Y02T10/47F01N2240/18F01N2610/12F01N2240/22F01N2610/142F17C13/026F01N3/2066F01N2610/1406F01N9/005F01N2610/02Y02A50/20Y02E60/32Y02T10/40G01K17/06G01M15/102
Inventor JJ·范夏夫汀根弗朗索瓦·道尼尔多米尼克·马杜让-克罗德·阿布姆汉伊
Owner INERGY AUTOMOTIVE SYST RES (SA)