LU502622B1 - Automatic control method for refueling emission detecting test - Google Patents
Automatic control method for refueling emission detecting test Download PDFInfo
- Publication number
- LU502622B1 LU502622B1 LU502622A LU502622A LU502622B1 LU 502622 B1 LU502622 B1 LU 502622B1 LU 502622 A LU502622 A LU 502622A LU 502622 A LU502622 A LU 502622A LU 502622 B1 LU502622 B1 LU 502622B1
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- refueling
- fuel filler
- test
- remote control
- replenishment
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/04—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
- B67D7/0476—Vapour recovery systems
- B67D7/0496—Performance test devices therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
A method for a refueling emission detecting test, comprises the steps: setting up an automatic control system for a refueling emission detecting test; selecting a fuel filler model in a remote control module based on an actual test, inputting volume of an automobile fuel tank in a communication module, and sending a signal of the fuel filler model to different modules to allow the modules to get ready for corresponding action modes; making the remote control module receive and send a signal of start of a refueling test to different modules, starting timing by a timer, and after refueling, determining based on the remote control communication module, when Time 2 is up to 15 s, replenishment for refueling meets regulatory requirements, and the timer display screen shows Time 2 and replenishment valid, and if Time 2 is more than 15 s, the screen shows Time 2 and replenishment failed.
Description
AUTOMATIC CONTROL METHOD FOR REFUELING EMISSION
DETECTING TEST
The present invention relates to the field of automobile and engine emission detection technologies, in particular to an automatic control method for a refueling emission detecting test.
Referring to the European emission system, China has not made any requirements for refueling emissions until 2016, when China published GB/18352.5-2016 Limits and
Measurement Methods for Emissions from Light-duty Vehicles (China VI), and added Type VII refueling pollutant emission tests, which stipulates that the refueling emission value should not exceed 0.05 g/L. To comply with emission regulations of China VI, all major emission detection organizations are equipped with closed evaporation chamber systems and refueling trolleys required for refueling emission detecting tests.
In the prior art, to detect refueling emissions, a fuel filler is inserted into a refueling pipe of a refueling trolley from a filler port of a closed evaporation chamber, and the joint of the fuel filler from the closed evaporation chamber into the closed chamber is sealed properly through special gloves for refueling. Before refueling, a fuel filler handle should be kept approximately perpendicular to the ground and inserted into bottom of the automobile refueling pipe as far as possible. When refueling is started, it is clearly stipulated by China VI emission regulations that fuel delivery of the refueling trolley should continue until the fuel filler is automatically turned off, and the amount of fuel delivered by the refueling trolley must be at least 85% of the nominal tank capacity. However, the following deficiencies exist when a refueling emission test is carried out throughout these procedures: 1. When a refueling test is carried out on a gasoline automobile, the fuel filler trips abnormally due to an excessive refueling speed, and the refueling pipe vibrates due to the tripping of the fuel filler, causing splash of oil droplets. As a result, the amount of filled fuel cannot reach 85% of the nominal tank capacity, and fuel splash causes HC measured by an analyzer to be out-of-specification, resulting in the failure in the test. 2. In case of abnormal tripping of the fuel filler for the first time, an inspector needs to restart the fuel filler manually until filled fuel reached at least 85% of the nominal tank capacity.
This operation will cause violent fluctuation of the refueling pipe and fuel splash, and also cause instability of a fuel filler rack at the automobile filler port, and even displacement of the fuel filler from the automobile. It is difficult for the inspector to manually complete replenishment for refueling within 15 s in accordance with the emission regulations, resulting in the failure in the test. 3. In the refueling test, the fuel filler equipped for the refueling trolley is generally two kinds of fuel fillers commonly used in domestic gasoline stations, namely, American OPW model and
German ZVA model. When the inspector performs replenishment operation for refueling manually by experience, it is difficult to accurately ensure that the operation process meets the time requirement of at least 3 s interval between the first abnormal tripping and replenishment as stipulated by China VI emission regulations.
A complete refueling test procedure lasts for up to 4 days, and replenishment is highly dependent on manual operation experience of the inspector. Once there is an error in refueling on the 4th day, it will not only affect the accuracy of results, but also cause business losses if the test fails, and waste the time of the inspector and laboratory resources.
An objective of the present invention is to solve the shortcomings in the prior art, and provide an automatic control method for a refueling emission detecting test. The control method can help prevent external refueling vapor from escaping into a closed evaporation chamber during a refueling test, prevent fuel splash during refueling, reduce manual replenishment errors, and ensure the accuracy of results of the refueling test.
A technical solution of the present invention is as follows:
An automatic control method for a refueling emission detecting test, including the following steps:
S1: setting up an automatic control system for a refueling emission detecting test on a test site;
S2: selecting a fuel filler model in a remote control module based on an actual test before the refueling emission test, inputting volume of an automobile fuel tank in a communication module, and sending a signal of the fuel filler model to modules to allow the modules to get ready for corresponding action modes;
S3: receiving and sending, by the remote control module, a signal of start of a refueling test to different modules, starting timing by a timer, after refueling, determining based on the communication module whether at least 85% of the nominal tank capacity is met, if it is met, a push-press rod remains unmoved, and a timer display screen shows Time 1 and refueling succeeded; otherwise, the timer starts second timing, after the timing meets an interval of 3s, the fuel filler is ready for refueling, replenishment for refueling starts when a refueling start signal is received, the time from determination that regulatory requirements are not met to stop of tripping of replenishment for first refueling is Time 2, when Time 2 is less than or equal to 15 s, replenishment for refueling meets the regulatory requirements, and the timer display screen shows Time 2 and replenishment valid, and if Time 2 is more than 15 s, the timer display screen shows Time 2 and replenishment failed, and the test ends; wherein the automatic control system for a refueling emission detecting test includes a refueling pipe support frame, a fuel filler support frame, a wireless automatic refueling device and a remote control module; the refueling pipe support frame includes a support rod with a bolt hole in the middle, a refueling pipe sleeve with positioning clamps at both ends, and a first connecting rod with bolt holes spaced apart; one end of the refueling pipe sleeve is movably installed on a top of the support rod, one end of the first connecting rod is connected to the refueling pipe sleeve through a stopping bolt, and the other end is connected to the bolt hole in the support rod through the stopping bolt to facilitate adjustment in a relative position between the refueling pipe sleeve and the support rod; the fuel filler support frame includes a fixing clamp, a sealing clamp arranged in the center of the fixing clamp, a bracket sleeved an outside of the sealing clamp through a ball bearing, and a second connecting rod with the bolt holes spaced apart; the fixing clamp is fixedly connected to the bracket through a third connecting rod, one end of the second connecting rod is connected to the fixing clamp through the stopping bolt, and the other end is connected to the bolt hole in the support rod through the stopping bolt to facilitate the adjustment in a relative position between the refueling pipe support frame and the fuel filler support frame; the wireless automatic refueling device includes a motor with wireless communication, a push-press rod for pushing the fuel filler to clamp, and a timer for wireless communication; the wireless automatic refueling device is installed on a limit plate of the fuel filler, and the motor receives a command signal from the remote control module to allow the push-press rod to act on a flapper of the fuel filler; the remote control module includes an excitation power supply that provides an alternating current, a fuel filler model selection module that can be in wireless communication, a refueling preparation module that can control the rotation of an output shaft of the motor by wireless communication, a communication module that receives refueling start, end and fuel amount signals from a refueling trolley and makes judgments, a timer control module that can sense motor actions by wireless communication and a timer display screen for actions of the fuel filler; and the remote control module is in wireless communication connection with the wireless automatic refueling device.
Further, a fuel filler seat is arranged on an outer side of the fixing clamp.
Further, the stopping bolt is connected to the first connecting rod or the second connecting rod through a hinge.
Further, the remote control module is provided with a communication port connected to a control computer for the closed evaporation chamber, at which a refueling action command is remotely processed through the control computer.
The present invention has the following beneficial effects: 1. The sealing clamp in the fuel filler support frame can seal the fuel filler and the refueling gloves in the closed evaporation chamber to the maximum extent, so as to ensure the tightness of the closed evaporation chamber during the test, avoid the influence of external refueling vapor escaping into the closed evaporation chamber on emission measurement, reduce systematic errors in refueling by the fuel filler, and ensure the accuracy of results of the refueling test.
2. The fixing clamp in the fuel filler support frame and the fuel filler seat that supports the fuel filler can reduce vibration of the fuel filler and the refueling pipe during refueling, and prevent fuel splash during refueling while ensuring that the fuel filler itself can be flexibly mounted onto the automobile.
3. The refueling pipe sleeve and the two positioning clamps on the refueling pipe support frame can fix a section of the refueling pipe close to the fuel filler, so as to further reduce the vibration of the refueling pipe due to changes in fuel temperature and flow during refueling, and ensure position stability of the fuel filler.
4. Different positions where different automobiles are located after entering the closed evaporation chamber may lead to different positions of the fuel filler.
Connectors on the refueling pipe support frame can fix the fuel filler and the refueling pipe well based on different positions, so as to stabilize the center of gravity of the fuel filler and the refueling pipe, and ensure stability of the refueling process, which has the advantages of easy movement and stability.
5. À push-press structure in the wireless automatic refueling device can fit the fuel filler body in the test according to the received signal of the fuel filler model.
The pushing and pressing allows a switch handle and the flapper of the fuel filler to be in a refueling-ready state, and to automatically retract when a refueling action ready state is sensed, so as to avoid collision with the flapper action when the fuel filler trips automatically.
The timing by the timer based on refueling actions can better meet the requirements for the refueling test in the regulations, so that the refueling operation of the refueling test can be completed automatically, and influence of manual operation errors on the accuracy of test results can be avoided.
À timer and push-press rod mode of the wireless automatic refueling device can accurately meet time requirements for the refueling operation and replenishment in the regulations, and minimize the problem of reducing test accuracy and compliance caused by manual operation errors.
6. The fuel filler model selection in the remote control module can meet the requirements of different enterprise customers for the selection of fuel fillers for refueling tests.
Meanwhile, the communication module receives a signal of whether refueling is successful, which is also convenient for test operators to determine whether the tests are successful.
The reserved communication port can be integrated into the control computer for the closed evaporation chamber, which is convenient for unified control and operation by the testers on the computer.
FIG. 1 1s a structural schematic diagram of the present invention;
FIG. 2 is a structural schematic diagram of a wireless automatic refueling device according to the present invention;
FIG. 3 1s a schematic diagram of the wireless automatic refueling device installed on a limit plate of an American OPW model fuel filler used in a test according to the present invention;
FIG. 4 is a schematic diagram of the wireless automatic refueling device installed on a limit plate of a German ZV A model fuel filler used in a test according to the present invention;
FIG. 5 is a schematic diagram of an automatic control system for automatic refueling according to the present invention;
FIG. 6 is a flow chart of an automatic refueling control method according to the present invention.
As shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 4, an automatic control method for a refueling emission detecting test includes the following steps: 1: setting up an automatic control system for a refueling emission detecting test on a test site;
S2: selecting a fuel filler model in a remote control module based on an actual test before the refueling emission test, inputting volume of an automobile fuel tank in a communication module, and sending a signal of the fuel filler model to modules to allow the modules to get ready for corresponding action modes;
S3: receiving and sending, by the remote control module, a signal of start of a refueling test to different modules, starting timing by a timer, after refueling, determining based on the communication module whether at least 85% of the nominal tank capacity is met, when it is determined that at least 85% of nominal tank capacity is met, a push-press rod does not need to move again, and a timer display screen shows Time 1 and refueling succeeded; when it is determined that at least 85% of the nominal tank capacity 1s not met, the timer starts second timing, after the timing meets an interval of 3s, the fuel filler is ready for refueling, replenishment for refueling starts when a refueling start signal is received, the time from determination that regulatory requirements are not met to stop of tripping of replenishment for first refueling is Time 2, when Time 2 is less than or equal to 15 s, replenishment for refueling meets the regulatory requirements, and the timer display screen shows Time 2 and replenishment valid, and if Time 2 is more than 15 s, the timer display screen shows Time 2 and replenishment failed, and the test ends; wherein the automatic control system for the refueling emission detecting test includes a refueling pipe support frame 1, a fuel filler support frame 2, a wireless automatic refueling device 3 and a remote control module 4; the refueling pipe support frame includes a support rod 13 with a bolt hole 13a in the middle, a refueling pipe sleeve 12 with positioning clamps 11 at both ends, and a first connecting rod 14 with the bolt holes spaced apart; one end of the refueling pipe sleeve is movably installed on a top of the support rod, one end of the first connecting rod is connected to the refueling pipe sleeve through a stopping bolt, and the other end is connected to the bolt hole 13a in the support rod through the stopping bolt to facilitate adjustment in a relative position between the refueling pipe sleeve and the support rod; and the stopping bolt is connected to the first connecting rod or the second connecting rod through a hinge, and the first connecting rod or the second connecting rod falls easily when the stopping bolt is pulled out.
The fuel filler support frame includes a fixing clamp 21, a sealing clamp 22 arranged in the center of the fixing clamp, a bracket 22a sleeved outside the sealing clamp through a ball bearing to achieve the connection between the fixing clamp and the bracket and the flexible rotation of the fuel filler, and a second connecting rod 23 with the bolt holes spaced apart; the fixing clamp is fixedly connected to the bracket through a third connecting rod 22b, one end of the second connecting rod is connected to the fixing clamp through the stopping bolt, and the other end is connected to the bolt hole 13a in the support rod through the stopping bolt to facilitate the adjustment in a relative position between the refueling pipe support frame and the fuel filler support frame; and a fuel filler seat 24 is arranged on an outer side of the fixing clamp, and the fixing clamp and the fuel filler seat 24 can reduce vibration of the fuel filler and the refueling pipe during refueling, which is beneficial to the smooth operation of refueling;
the wireless automatic refueling device includes a motor 31 with wireless communication, a push-press rod 32 for pushing the fuel filler to clamp, and a timer 33 for wireless communication; the wireless automatic refueling device 1s installed on a limit plate of the fuel filler, and the motor receives a command signal from the remote control module to allow the push-press rod to act on a flapper of the fuel filler.
As shown in FIG. 5, the remote control module includes an excitation power supply 41 that provides an alternating current, a fuel filler model selection module 42 that can communicate wirelessly, a refueling preparation module 43 that can control the rotation of an output shaft of the motor by wireless communication, a communication module 44 that receives refueling start, end and fuel amount signals from a refueling trolley and makes some judgments, a timer control module 45 that can sense motor actions by wireless communication and a timer display screen 46 for actions of the fuel filler; and the remote control module is in wireless communication connection with the wireless automatic refueling device. The remote control module is provided with a communication port connected to a control computer for the closed evaporation chamber, at which a refueling action command 1s remotely processed through the control computer, which is convenient for operation.
As shown in FIG. 1, FIG. 3, and FIG. 4, the refueling pipe support frame and the fuel filler support frame are set up, the wireless automatic refueling device is installed, and the remote control module is powered on. After the wireless automatic refueling device communicates with the remote control module, as shown in FIG. 5 and FIG. 6, a signal is received from the fuel filler model selection module to select a fuel filler model, that is, selecting a corresponding push-press rod mode. When the wireless automatic refueling device receives a signal that the fuel filler is an American OPW model fuel filler, at which a signal of a refueling preparation command from the remote control module is received, the push rod pushes a switch handle of the fuel filler upward towards an inner side of the fuel filler body. When it is sensed that the switch handle of the fuel filler touches one side of the fuel filler body, the press rod pushes the flapper of the fuel filler to move towards the limit plate of the fuel filler parallel to the fuel filler body, that is, pushing downward, until the flapper of the fuel filler is clamped by the limit plate of the fuel filler. When it is sensed that the switch handle and the flapper of the fuel filler are in a refueling-ready state, the push-press rod starts to move back and retract to an original position. When the wireless automatic refueling device receives a signal that the fuel filler is a German ZV A model fuel filler, at which a signal of a refueling preparation command from the remote control module is received, the push rod pushes the switch handle of the fuel filler upward towards an inner side of the fuel filler body. When it is sensed that the switch handle of the fuel filler touches one side of the fuel filler body, the press rod pushes the flapper of the fuel filler to move towards the limit plate of the fuel filler perpendicular to the fuel filler body, that is, pushing in a direction opposite to a nozzle of the fuel filler, until the flapper of the fuel filler is clamped by the limit plate of the fuel filler. When it is sensed that the switch handle and the flapper of the fuel filler are in a refueling ready state, the push-press rod starts to move back and retract to an original position. When the wireless automatic refueling device receives a refueling start signal from the communication module in the remote control module, the fuel filler starts refueling, and the timer starts first timing. The time from the first refueling of the fuel filler to the first refueling tripping is Time 1. It is determined based on the communication module whether at least 85% of the nominal fuel tank capacity is met, if met, means the regulatory requirements are met, the refueling test operation is completed successfully, the push- press rod does not need to move again, and the timer display screen shows Time 1 and refueling succeeded; when it is determined that the regulatory requirements are not met, the timer starts second timing, after the timing meets an interval of 3 s, the push-press rod starts to push the switch handle and the flapper of the fuel filler based on the selected fuel filler model and mode until the fuel filler is ready for refueling. Replenishment for refueling starts when a refueling start signal is received again, the time from determination that the regulatory requirements are not met to stop of tripping of replenishment for first refueling is Time 2, when Time 2 is less than or equal to 15 s, replenishment for refueling meets the regulatory requirements, and the timer display screen shows Time 2 and replenishment valid, and if Time 2 is more than 15 s, the timer display screen shows Time 2 and replenishment failed, and the test ends.
The above-described embodiments are merely a description of preferred modes of the present invention, and do not limit the scope of the present invention. Various modifications and improvements made by those of ordinary skill in the art to the technical solutions of the present invention are intended to fall within the protection scope defined by the claims of the present invention without departing from the spirit of the design of the present invention.
Claims (4)
1. An automatic control method for a refueling emission detecting test, characterized by comprising the following steps: S1: setting up an automatic control system for a refueling emission detecting test on a test site; S2: selecting a fuel filler model in a remote control module based on an actual test before the refueling emission test, inputting volume of an automobile fuel tank in a communication module, and sending a signal of the fuel filler model to modules to allow the modules to get ready for corresponding action modes; S3: receiving and sending, by the remote control module, a signal of start of a refueling test to different modules, starting timing by a timer, and after refueling, determining based on the communication module whether at least 85% of the nominal tank capacity is met, if it is met, a push-press rod does not need to move again, and a timer display screen shows Time 1 and refueling succeeded; otherwise, the timer starts second timing, the fuel filler is ready for refueling, replenishment starts when a refueling start signal is received, the time from determination that regulatory requirements are not met to stop of tripping of replenishment for first refueling is Time 2, when Time 2 is less than or equal to 15 s, replenishment for refueling meets the regulatory requirements, and the timer display screen shows Time 2 and replenishment valid, and if Time 2 is more than 15 s, the timer display screen shows Time 2 and replenishment failed, and the test ends, wherein the automatic control system for the refueling emission detecting test comprises a refueling pipe support frame (1), a fuel filler support frame (2), a wireless automatic refueling device (3) and a remote control module (4); the refueling pipe support frame comprises a support rod (13) with a bolt hole (13a) in the middle, a refueling pipe sleeve (12) with positioning clamps (11) at both ends, and a first connecting rod (14) with bolt holes spaced apart; one end of the refueling pipe sleeve is movably installed on a top of the support rod, one end of the first connecting rod is connected to the refueling pipe sleeve through a stopping bolt, and the other end is connected to the bolt hole (13a) in the support rod through the stopping bolt to facilitate adjustment in a relative position between the refueling pipe sleeve and the support rod;
the fuel filler support frame comprises a fixing clamp (21), a sealing clamp (22) arranged in the center of the fixing clamp, a bracket (22a) sleeved an outside of the sealing clamp through a ball bearing, and a second connecting rod (23) with the bolt holes spaced apart; the fixing clamp is fixedly connected to the bracket through a third connecting rod (22b), one end of the second connecting rod is connected to the fixing clamp through the stopping bolt, and the other end is connected to the bolt hole (13a) in the support rod through the stopping bolt to facilitate the adjustment in a relative position between the refueling pipe support frame and the fuel filler support frame; the wireless automatic refueling device comprises a motor (31) with wireless communication, a push-press rod (32) for pushing the fuel filler to clamp, and a timer (33) for wireless communication; the wireless automatic refueling device 1s installed on a limit plate of the fuel filler, and the motor receives a command signal from the remote control module to allow the push-press rod to act on a flapper of the fuel filler; the remote control module comprises an excitation power supply (41) that provides an alternating current, a fuel filler model selection module (42) that 1s in wireless communication, a refueling preparation module (43) that controls the rotation of an output shaft of the motor by wireless communication, a communication module (44) that receives refueling start, end and fuel amount signals from a refueling trolley and makes judgments, a timer control module (45) that senses motor actions by wireless communication and a timer display screen (46) for actions of the fuel filler; and the remote control module is in wireless communication connection with the wireless automatic refueling device.
2. The automatic control method for the refueling emission detecting test according to claim 1, characterized in that the remote control module is provided with a communication port connected to a control computer for a closed evaporation chamber, at which a refueling action command 1s remotely processed through the control computer.
3. The automatic control method for the refueling emission detecting test according to claim 1, characterized in that a fuel filler seat (24) 1s arranged on an outer side of the fixing clamp, and a limit plate at a bottom of the fuel filler is mounted on the fuel filler seat.
4. The automatic control method for the refueling emission detecting test according to claim 1, characterized in that the stopping bolt is connected to the first connecting rod or the second connecting rod through a hinge.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210272163.XA CN114705447A (en) | 2022-03-18 | 2022-03-18 | Automatic control method for testing refueling emission |
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| Publication Number | Publication Date |
|---|---|
| LU502622B1 true LU502622B1 (en) | 2023-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU502622A LU502622B1 (en) | 2022-03-18 | 2022-08-02 | Automatic control method for refueling emission detecting test |
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| Country | Link |
|---|---|
| CN (1) | CN114705447A (en) |
| LU (1) | LU502622B1 (en) |
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2022
- 2022-03-18 CN CN202210272163.XA patent/CN114705447A/en active Pending
- 2022-08-02 LU LU502622A patent/LU502622B1/en active IP Right Grant
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