CN110823591A - Detection system for desorption flow of high-load pipeline of automobile carbon tank - Google Patents
Detection system for desorption flow of high-load pipeline of automobile carbon tank Download PDFInfo
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- CN110823591A CN110823591A CN201910985314.4A CN201910985314A CN110823591A CN 110823591 A CN110823591 A CN 110823591A CN 201910985314 A CN201910985314 A CN 201910985314A CN 110823591 A CN110823591 A CN 110823591A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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Abstract
The invention discloses a detection system for the desorption flow of a high-load pipeline of an automobile carbon tank, wherein a computer measurement and control system is arranged in the detection system for the desorption flow of the high-load pipeline of the automobile carbon tank and comprises a control module, an acquisition module, a processing module and a display module, the control module is a programmable controller and is connected with the acquisition module, the processing module and the display module, the acquisition module is connected with the processing module through a network and is connected with the display module based on the processing module, the acquisition module is connected with an OBD interface of a vehicle through an OBD-II protocol and is provided with a flowmeter, a temperature sensor, a pressure sensor and an oil tank air pressure sensor, the flowmeter, the temperature sensor and the pressure sensor are connected with an air vent of an active carbon tank of the vehicle in series, and the oil tank air pressure sensor is arranged in an; the processing module comprises a data conversion unit and a data conversion unit, and the display module is a CRT display screen or an LCD display screen connected with the control module.
Description
Technical Field
The invention relates to the technical field of automobile testing, in particular to a system for detecting desorption flow of a high-load pipeline of an automobile carbon tank.
Background
As the number of vehicles continues to increase, the pollution of the atmospheric environment by vehicle emissions also becomes more and more severe. The main pollutants of the vehicle are from exhaust gases, followed by crankcase leaks and evaporation of fuel in the fuel supply system. The main component of evaporative emission of fuel oil is HC, which accounts for about 20% of the total HC emission of the vehicle. In order to improve atmospheric quality, increasingly stringent vehicle evaporative emission regulations are being enacted throughout the world. With the increasing importance of our country to environmental protection, the environmental protection standard for motor vehicles at the new stage GB18352.6-2016 [ limit of emission of pollutants for light vehicles and measurement method (sixth stage of china)' (hereinafter referred to as "six of china") has been released, and with the release of the limit of emission of pollutants for light vehicles and measurement method (sixth stage of china), "the limit of emission of pollutants for light vehicles and measurement method (sixth stage of china)" is reduced from 2.0g/test, which is the national five limit, to 0.7g/test, by 65%. The source of evaporative contaminants is primarily the fuel system. In the process of evaporative pollutant emission development, engineers reduce the pollutant sources of an engine, a carbon canister, an oil tank and the like through different paths and methods, design an evaporative pollutant control system, control adsorption and desorption of the carbon canister, effectively prevent fuel oil from escaping, and meet the requirement of regulation limit.
However, no special detection device exists in the market at present, manual measurement is mostly adopted for detection, the operation is troublesome, the efficiency is low, and the detection precision is difficult to guarantee.
Disclosure of Invention
The invention aims to provide a detection system for the desorption flow of a high-load pipeline of an automobile carbon tank, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a detection system for the desorption flow of a high-load pipeline of an automobile carbon tank is provided with a computer measurement and control system, the computer measurement and control system comprises a control module, an acquisition module, a processing module and a display module, wherein the control module is a programmable controller, which is connected with an acquisition module, a processing module and a display module, wherein the acquisition module is connected with the processing module based on a limited or wireless communication network, and is connected with a display module based on a processing module network, the acquisition module is connected with an OBD interface of the vehicle through an OBD-II protocol, the vehicle air pressure sensor is arranged at the air vent of the activated carbon tank of the vehicle; the processing module comprises a data conversion unit and a data conversion unit, and the display module is a CRT display screen or an LCD display screen connected with the control module.
As a preferred technical scheme of the invention, the acquisition module is connected with an OBD interface of the vehicle through an OBD-II protocol and is used for acquiring real-time vehicle speed, engine rotation and torque signals of the vehicle, and the flow meter, the temperature sensor and the pressure sensor are used for acquiring desorption flow, temperature and pressure signals of an atmosphere end of the stop valve of the activated carbon tank; the oil tank air pressure sensor is used for acquiring a vacuum degree signal in the oil tank.
As a preferred technical solution of the present invention, the data conversion unit is configured to convert the real-time vehicle speed, the engine rotation and torque analog signals, the desorption flow, the temperature and the pressure analog signals of the canister stop valve at the atmosphere end, and the vacuum analog signals in the oil tank into data signals that the data conversion unit wants to cooperate with, and generate the required data format.
As a preferred technical solution of the present invention, the data conversion unit receives the data signals of the real-time vehicle speed, the engine rotation and the torque obtained by the data conversion unit, and after performing corresponding calculation on the data signals, the control module analyzes the desorption capacity of the activated carbon canister according to the real-time vehicle speed of the vehicle and the desorption flow, temperature and pressure of the vent of the activated carbon canister, and displays the desorption capacity through the display module.
As a preferred technical solution of the present invention, the data conversion unit receives the data signal of the vacuum value in the oil tank obtained by the data conversion unit, and performs corresponding calculation on the data signal to obtain an oil tank pressure value, and compares the oil tank pressure value with the environmental pressure value.
As a preferable technical scheme of the invention, the pressure value of the oil tank is set to be P1, the environmental pressure value is set to be P2, when P1 is equal to or tends to P2 wirelessly, the gas path of the oil tank is normal, and when P1 is not equal to P2, the gas path of the oil tank is damaged, and the maintenance is needed.
As a preferred technical scheme, an adsorption flow regulating valve is arranged on the automobile carbon tank, the control module is in control connection with the adsorption flow regulating valve, and the computer measurement and control system controls the opening degree of the adsorption flow regulating valve through the control module after analyzing and processing related signals acquired by the acquisition module.
Compared with the prior art, the invention has the beneficial effects that: according to the detection system for the desorption flow of the high-load pipeline of the automobile carbon tank, the acquisition module can acquire the speed, the rotation of an engine and a torque signal of the automobile in real time, the activated carbon tank stop valve is connected with the desorption flow, the temperature and the pressure signal of the atmosphere end and the vacuum degree signal in the oil tank, and the processing module is used for processing and analyzing the acquired analog signal to obtain the desorption capacity of the activated carbon tank of the automobile and the working state of the air passage of the oil tank, so that the purpose of real-time monitoring is achieved, the whole operation is simple, and the detection result is reliable.
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FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, the present invention provides a technical solution: a detection system for the desorption flow of a high-load pipeline of an automobile carbon tank is provided with a computer measurement and control system, the computer measurement and control system comprises a control module, an acquisition module, a processing module and a display module, wherein the control module is a programmable controller, which is connected with an acquisition module, a processing module and a display module, wherein the acquisition module is connected with the processing module based on a limited or wireless communication network, and is connected with a display module based on a processing module network, the acquisition module is connected with an OBD interface of the vehicle through an OBD-II protocol, the vehicle air pressure sensor is arranged at the air vent of the activated carbon tank of the vehicle; the processing module comprises a data conversion unit and a data conversion unit, and the display module is a CRT display screen or an LCD display screen connected with the control module.
Furthermore, the acquisition module is connected with an OBD interface of the vehicle through an OBD-II protocol and used for acquiring real-time vehicle speed, engine rotation and torque signals of the vehicle, and the flowmeter, the temperature sensor and the pressure sensor are used for acquiring desorption flow, temperature and pressure signals of an atmosphere end of the stop valve of the activated carbon tank; the oil tank air pressure sensor is used for acquiring a vacuum degree signal in the oil tank.
Furthermore, the data conversion unit is used for converting real-time vehicle speed, engine rotation and torque analog signals of the vehicle, desorption flow, temperature and pressure analog signals of the atmosphere end communicated with the activated carbon canister stop valve and vacuum degree analog signals in the oil tank into data signals matched with the data conversion unit and generating a required data format.
Furthermore, the data conversion unit receives the data signals of the real-time vehicle speed, the engine rotation and the torque acquired by the data conversion unit, and after corresponding calculation, the control module analyzes the desorption capacity of the activated carbon tank according to the real-time vehicle speed of the vehicle and the desorption flow, the temperature and the pressure of the vent of the activated carbon tank, and displays the desorption capacity through the display module.
Further, the data conversion unit receives the data signal of the vacuum degree value in the oil tank obtained by the data conversion unit, correspondingly calculates the data signal to obtain an oil tank pressure value, and compares the oil tank pressure value with an environmental pressure value.
Furthermore, the pressure value of the oil tank is set to be P1, the environmental pressure value is set to be P2, when P1 is equal to or wireless to trend to P2, the gas path of the oil tank is normal, and if P1 is not equal to P2, the gas path of the oil tank is damaged, and maintenance is needed.
Further, be provided with on the car carbon tank and adsorb flow control valve, control module control connection adsorbs flow control valve, computer measurement and control system pass through the relevant signal that acquisition module acquireed to carry out analysis processes to it, adsorb flow control valve aperture through control module control.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A detection system for the desorption flow of a high-load pipeline of an automobile carbon tank is characterized in that a computer measurement and control system is arranged in the detection system for the desorption flow of the high-load pipeline of the automobile carbon tank, the computer measurement and control system comprises a control module, an acquisition module, a processing module and a display module, wherein the control module is a programmable controller, which is connected with an acquisition module, a processing module and a display module, wherein the acquisition module is connected with the processing module based on a limited or wireless communication network, and is connected with a display module based on a processing module network, the acquisition module is connected with an OBD interface of the vehicle through an OBD-II protocol, the vehicle air pressure sensor is arranged at the air vent of the activated carbon tank of the vehicle; the processing module comprises a data conversion unit and a data conversion unit, and the display module is a CRT display screen or an LCD display screen connected with the control module.
2. The system for detecting the desorption flow of the high-load pipeline of the automobile carbon tank as claimed in claim 1, wherein the acquisition module is connected with an OBD interface of the vehicle through an OBD-II protocol and is used for acquiring real-time vehicle speed, engine rotation and torque signals of the vehicle, and the flow meter, the temperature sensor and the pressure sensor are used for acquiring desorption flow, temperature and pressure signals of an atmosphere end of the stop valve of the activated carbon tank; the oil tank air pressure sensor is used for acquiring a vacuum degree signal in the oil tank.
3. The system for detecting the desorption flow of the high-load pipeline of the carbon canister of the automobile as claimed in claim 1, wherein the data conversion unit is used for converting the real-time vehicle speed, the engine rotation and torque analog signals of the vehicle, the desorption flow, the temperature and the pressure analog signals of the atmosphere end of the stop valve of the activated carbon canister and the vacuum degree analog signals in the oil tank into data signals matched with the data conversion unit and generating the required data format.
4. The system for detecting the desorption flow of the high-load pipeline of the carbon tank of the automobile according to claim 1, wherein the data conversion unit receives data signals of real-time vehicle speed, engine rotation and torque obtained by the data conversion unit, and correspondingly calculates the data signals, and then the control module analyzes the desorption capacity of the activated carbon tank according to the real-time vehicle speed of the automobile and the desorption flow, temperature and pressure of the vent of the activated carbon tank, and displays the desorption capacity through the display module.
5. The system for detecting the desorption flow of the high-load pipeline of the carbon tank of the automobile according to claim 1, wherein the data conversion unit receives a data signal of a vacuum degree value in the oil tank obtained by the data conversion unit, correspondingly calculates the data signal to obtain an oil tank pressure value, and compares the oil tank pressure value with an environmental pressure value.
6. The system for detecting the desorption flow of the high-load pipeline of the carbon tank of the automobile as claimed in claim 5, wherein the pressure value of the oil tank is set to be P1, the environmental pressure value is set to be P2, when P1 is equal to or tends to P2 wirelessly, the gas path of the oil tank is normal, and when P1 is not equal to P2, the gas path of the oil tank is damaged, and maintenance is required.
7. The system for detecting the desorption flow of the high-load pipeline of the automobile carbon tank as claimed in claim 1, wherein an adsorption flow regulating valve is arranged on the automobile carbon tank, the control module is in control connection with the adsorption flow regulating valve, and the computer measurement and control system controls the opening degree of the adsorption flow regulating valve through the control module after analyzing and processing the relevant signals acquired by the acquisition module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910985314.4A CN110823591A (en) | 2019-10-16 | 2019-10-16 | Detection system for desorption flow of high-load pipeline of automobile carbon tank |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910985314.4A CN110823591A (en) | 2019-10-16 | 2019-10-16 | Detection system for desorption flow of high-load pipeline of automobile carbon tank |
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| CN110823591A true CN110823591A (en) | 2020-02-21 |
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| CN201910985314.4A Pending CN110823591A (en) | 2019-10-16 | 2019-10-16 | Detection system for desorption flow of high-load pipeline of automobile carbon tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834240A (en) * | 2020-12-31 | 2021-05-25 | 苏州恩都模塑科技有限公司 | Leakage desorption flow test detection system |
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| CN201811900U (en) * | 2010-09-21 | 2011-04-27 | 淮阴工学院 | Device for testing working capacity of automobile activated carbon canister |
| US20110197861A1 (en) * | 2010-02-17 | 2011-08-18 | Aisan Kogyo Kabushiki Kaisha | Canister devices for gas vehicle |
| CN105223100A (en) * | 2015-11-20 | 2016-01-06 | 柳州舜泽尔汽车零部件有限公司 | A kind of automobile canister aeration resistance pick-up unit and detection method thereof |
| CN105427404A (en) * | 2015-11-06 | 2016-03-23 | 清华大学 | Collecting system and method for oil gas generation and desorption vehicle-mounted data under actual working condition of motor vehicle |
| CN107420230A (en) * | 2017-09-11 | 2017-12-01 | 上海汽车集团股份有限公司 | Canister high load capacity desorption pipeline desorption flow diagnostic method |
| CN109209684A (en) * | 2018-08-01 | 2019-01-15 | 上海机动车检测认证技术研究中心有限公司 | A kind of canister desorption detection device |
| CN109445408A (en) * | 2018-10-22 | 2019-03-08 | 重庆长安汽车股份有限公司 | A method of flow is desorbed in measurement car carbon tank in real time |
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2019
- 2019-10-16 CN CN201910985314.4A patent/CN110823591A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110197861A1 (en) * | 2010-02-17 | 2011-08-18 | Aisan Kogyo Kabushiki Kaisha | Canister devices for gas vehicle |
| CN201811900U (en) * | 2010-09-21 | 2011-04-27 | 淮阴工学院 | Device for testing working capacity of automobile activated carbon canister |
| CN105427404A (en) * | 2015-11-06 | 2016-03-23 | 清华大学 | Collecting system and method for oil gas generation and desorption vehicle-mounted data under actual working condition of motor vehicle |
| CN105223100A (en) * | 2015-11-20 | 2016-01-06 | 柳州舜泽尔汽车零部件有限公司 | A kind of automobile canister aeration resistance pick-up unit and detection method thereof |
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| CN109209684A (en) * | 2018-08-01 | 2019-01-15 | 上海机动车检测认证技术研究中心有限公司 | A kind of canister desorption detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112834240A (en) * | 2020-12-31 | 2021-05-25 | 苏州恩都模塑科技有限公司 | Leakage desorption flow test detection system |
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Application publication date: 20200221 |