[특허]Method for diagnosing the malfunctioning of a device for adding an additive into a fuel for a vehicle, and system for implementing said method

Rhodia Operations

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Method for diagnosing the malfunctioning of a device for adding an additive into a fuel for a vehicle, and system for implementing said method

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01M-015/04 F02D-041/22 F02M-025/00 F02D-019/12 F02D-041/00
출원번호	US-0370703 (2013-01-04)
등록번호	US-9677969 (2017-06-13)
우선권정보	FR-12 00024 (2012-01-04)
국제출원번호	PCT/EP2013/000012 (2013-01-04)
국제공개번호	WO2013/102621 (2013-07-11)
발명자 / 주소	Harle, Virginie Lallemand, Michael Seguelong, Thierry Monsallier, Guy
출원인 / 주소	Rhodia Operations
인용정보	피인용 횟수 : 0 인용 특허 : 7

초록
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The invention relates to a method for diagnosing the malfunctioning of a device for adding an additive into a fuel for a vehicle comprising an internal combustion engine, said method including: a step of analyzing the fuel in order to determine a variation in the amount of additive in the fuel; a step of comparing the variation in the amount of additive, measured during the previous step, with a theoretical variation in said amount; a step of sending information when the difference between the measured variation and the theoretical variation exceeds a se...

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1. A fuel additivation and diagnosis system for a vehicle having an internal combustion engine, wherein the system comprises: an additive distribution device for distributing at least one additive in a fuel circulation circuit of the engine of the vehicle, wherein the additive distribution device comprises: a tank (12) containing an additive,a chamber (22) which is in communication with a fuel circulation circuit (1) and inside which the tank (12) is inserted,at least one movable and leaktight wall (32, 33, 34) between said chamber (22) and said tank (12) providing leaktight separation and maintaining an identical pressure between the additive in the tank (12) and fuel in the chamber (22), andmeans for injecting the additive which are connected to the tank (12) and to the fuel circulation circuit (1) adapted to distribute the additive in the fuel circulation circuit (1), said means comprising a distribution channel (16, 16a, 16b) connecting the tank (22) and the fuel circulation circuit (1);an analytical device for analysis of the fuel, wherein the analytical device measures data, said data comprising the content of the at least one additive in the fuel;means for sending the data from said analytical device to a component of the vehicle. 2. A method for diagnosing the malfunctioning of the additive distribution device in the fuel additivation and diagnosis system of claim 1, wherein the method comprises the following stages: (a) measuring a variation in content of additive in the fuel with the analytical device;(b) comparing the measured variation in the content of additive and a theoretical variation in this content to determine a difference between the measured variation and the theoretical variation; and(c) sending the data to the component of the vehicle when the difference between the measured variation and the theoretical variation in this content of additive exceeds a fixed value. 3. The method as claimed in claim 2, wherein the data in stage (c) is sent to at least one of the following components: the additive distribution device;an electronic central processing unit of the vehicle;a central system for diagnosing failure of the vehicle. 4. The system as claimed in claim 1, wherein the analytical device is a spectrometry device. 5. The system as claimed in claim 1, wherein the additive tank (12) is provided in the form of a flexible bag (32) and in that said flexible bag (32) constitutes the movable and leaktight wall. 6. The system as claimed in claim 1, wherein the movable and leaktight wall comprises a membrane (33) or a piston (34). 7. The system as claimed in claim 1, wherein the additive distribution device comprises a fuel inlet orifice (13), a fuel outlet orifice (14), an additive distribution orifice (17) and a means (21, 25) for generating a pressure difference between the fuel inlet orifice (13) or fuel outlet orifice (14) and the additive distribution orifice (17). 8. The system as claimed in claim 7, wherein the means for generating a pressure difference is provided in the form of a diaphragm or a venturi (21). 9. The system as claimed in claim 7, wherein the means for generating a pressure difference is provided in the form of a filtering element (25). 10. The system as claimed in claim 1, wherein the system further comprises a means (15) for total or partial sealing of the channel (16, 16a, 16b) for distribution of the additive. 11. The system as claimed in claim 10, wherein the means (15) for sealing the channel for distribution of the additive is an electromechanical means. 12. The system as claimed in claim 1, wherein the additive distribution device comprises a device for filtration of the fuel comprising at least one filtering element (25). 13. The system as claimed in claim 12, wherein the filtering element (25) is annular in shape and the additive tank (12) is positioned concentrically inside said filtering element (25). 14. The system as claimed in claim 12, wherein the filtering element (25) is annular in shape and the additive tank (12) is positioned concentrically outside the filtering element (25). 15. The system as claimed in claim 12, wherein the filtering element (25) and the additive tank (12) are superimposed axially. 16. The system as claimed in claim 12, wherein the filtering element (25) is traversed by the fuel, delimiting an upstream side (28), located between the fuel tank (2) and the filtering element (25), where the unfiltered fuel circulates, and a downstream side (29), positioned between the filtering element (25) and an internal combustion engine, where the filtered fuel circulates, and wherein the additive is diffused from the upstream side (28) or from the downstream side (29). 17. The system as claimed in claim 12, wherein the movable wall (32, 33, 34) is positioned between the additive tank (12) and the upstream side (28). 18. The system as claimed in claim 12, wherein the movable wall (32, 33, 34) is positioned between the additive tank (12) and the downstream side (29). 19. The system as claimed in claim 12, wherein the additive distribution device comprises (a) a diffusion head (10) intended to be permanently fitted to the fuel circulation circuit (1) and comprising a channel (17) for distribution of the additive into the fuel circulation circuit (1) and (b) a cartridge (11) comprising the filtering element (25), the additive tank (12) and the movable and leaktight wall (32), said cartridge (11) being fitted in removable fashion to the diffusion head (10). 20. The system as claimed in claim 1, wherein the additive distribution device is located so that the additive is diffused into a fuel return line (6) of an internal combustion engine, downstream of an injection system and toward a fuel tank (2). 21. The system as claimed in claim 1, wherein the component of the vehicle is selected from: the additive distribution device;an electronic central processing unit of the vehicle; anda central system for diagnosing failure of the vehicle.

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Method for diagnosing the malfunctioning of a device for adding an additive into a fuel for a vehicle, and system for implementing said method

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Method for diagnosing the malfunctioning of a device for adding an additive into a fuel for a vehicle, and system for implementing said method

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