JPH09169400A - Oil supply apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such a problem that it is judged that the oil supply of other oil supply system is completed by mistake when the oil supply of the other oil supply system is interrupted twice when preset oil supply is performed by one oil supply system and an oil supply time is extended. SOLUTION: When preset switches 37, 38 are operated, a control unit 24 sets an oil supply system to a preset oil supply mode and stores an inputted numerical value in a memory as preset oil supply quantity. When the preset oil supply mode is set to one oil supply system, in such a case that oil is usually supplied by other oil supply system, the pump motor 14a of a pump 14 is intermittently operated in such a state that the solenoid valve 17 of the other oil supply system and the solenoid valve 18 of one oil supply system are opened to perform preset adjustment so as to supply a predetermined preset amt. of oil. The open check of the oil supply nozzle 28 of one oil supply system after the completion of preset oil supply is performed by the opening and closing of the solenoid valve 18 of one oil supply system 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil supply device which is used in a gas station or the like and preset oil supply such as gasoline or light oil to a fuel tank of an automobile.

[0002]

2. Description of the Related Art In a gas station or the like, an oil supply device for supplying an oil liquid such as gasoline or light oil to a fuel tank of an automobile is installed. In this type of refueling device, a pump was installed for each refueling nozzle, but as the number of refueling nozzles increases and the number of pumps increases, the manufacturing cost becomes higher. The number of pumps was reduced by sharing the pumps. for that reason,
The conventional refueling device employs a configuration called a one-pump / two-meter system, that is, a configuration in which one pump feeds oil liquid to two system refueling nozzles.

In this one-pump, two-meter type oil supply system, when two systems of oil supply nozzles are simultaneously supplying oil, one oil supply system performs preset oil supply,
Two refueling interruptions were made in other refueling systems. This 2
The first of the suspensions of refueling is to close the solenoid valve of the other refueling system while performing preset adjustment in one refueling system, and to suspend the second refueling, the nozzle lever of the refueling nozzle opens after the end of preset refueling. This is a case where the solenoid valves of the other oil supply systems are closed while it is determined whether or not they are held at the valve operation position.

That is, in the one-pump / two-meter type oil supply device, when preset oil supply is set in one oil supply system, the solenoid valves of the other oil supply systems are closed immediately before the amount of oil supply reaches the preset value. One pumping system was preset and adjusted by repeatedly starting and stopping the pump. When one refueling nozzle is returned to the nozzle hook after the preset refueling is completed, the solenoid valves of the other refueling systems are closed and the solenoid valves of the one refueling system are opened for a predetermined time to change the flow rate of the one refueling system. Based on the presence or absence of the above, it was determined whether or not one of the refueling nozzles is still open.

FIG. 9 is a timing chart showing the operation of the conventional solenoid valve and pump motor. In FIG. 9, when the refueling system 1 performs full tank refueling and the refueling system 2 performs preset refueling, the pump motor is intermittently operated only during preset adjustment and open check of the refueling nozzle. The solenoid valve of the refueling system 1 is
Even during refueling, the valve was closed during the preset adjustment and open check of the refueling nozzle.

[0006]

However, in the conventional refueling system, when preset refueling is performed in one refueling system as described above, refueling is interrupted twice in the other refueling system. When refueling is interrupted, the operator of the refueling station may judge that refueling is completed and pull out the refueling nozzle from the refueling port. In that case, if the operator of the gas station repeatedly starts and stops the pump while holding the fuel nozzle, oil liquid is discharged to the site of the gas station, or preset lubrication is performed. Sometimes returned to the nozzle hook before reaching the preset value.

Since one refueling interruption takes about 4 to 5 seconds, two refueling interruptions result in extending the refueling time of the other refueling system and, at the same time, refueling the other refueling system. Since the customer can see the refueling amount indicator, there is a problem that the waiting time until the end of refueling seems to be long.

[0008] Therefore, an object of the present invention is to provide an oil supply device which solves the above problems.

[0009]

In order to solve the above problems, the present invention has the following features. Claim 1
According to the invention, a plurality of oil supply systems are provided, each of which is provided with an oil supply hose having an oil supply nozzle for supplying oil liquid to a vehicle tank at its tip and an on-off valve connected to the base end of the oil supply hose and an oil supply pipe having a flow meter. , A liquid supply means connected to the plurality of oil supply systems and capable of simultaneously supplying oil liquid to the plurality of oil supply systems, and for connecting a desired amount of oil supply to the vehicle tank by connecting to the flow meter In a refueling device consisting of a preset control means for repeatedly driving and stopping the liquid feeding means, the preset control means, when simultaneously refueling the plurality of refueling systems, When performing the preset operation by performing the preset operation, the opening / closing valve of the other oil supply system is maintained in the open state.

Therefore, according to the first aspect of the present invention, when a plurality of refueling systems are being refueled simultaneously and the preset operation is performed for one refueling system, the opening / closing valves of the other refueling systems are opened. To maintain the valve status, it is possible to avoid interruption of refueling of other refueling system to perform preset adjustment of one refueling system, and prevent refueling time of other refueling system from being extended due to refueling interruption. it can.

According to the second aspect of the present invention, there is provided a valve mechanism inside and an oil supply nozzle for supplying oil liquid to a vehicle tank,
A plurality of refueling systems each including a refueling hose having the refueling nozzle at its tip and a refueling pipe connected to the base end of the refueling hose and having an opening / closing valve and a flow meter are provided, and the plurality of refueling systems are connected to the plurality of refueling systems. Oil supply means capable of supplying oil liquid to the oil supply system at the same time, and the oil supply operation for detecting the start and end of the oil supply operation based on the operation of the oil supply nozzle and outputting the oil supply operation start signal or the oil supply operation end signal. Detection means,
A valve opening detection for detecting whether or not the valve mechanism of the refueling nozzle is opened by driving the liquid feeding means for a short time when the refueling work start signal or the refueling work end signal is output from the refueling work detection means. In the oil supply device including a control means, the valve opening detection control means, when performing the valve opening detection operation for one oil supply system while simultaneously performing oil supply for the plurality of oil supply systems, It is characterized in that the on-off valve of the oil supply system is maintained in an open state.

Therefore, according to the second aspect, when performing the valve opening detection operation for one refueling system while simultaneously refueling a plurality of refueling systems, the opening / closing valves of the other refueling systems are opened. In order to maintain the valve open state, it is possible to avoid interruption of refueling of the other refueling system to perform the valve opening detection operation of one refueling system, and the refueling time of the other refueling system is extended by the interruption of refueling. Can be prevented.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a fuel supply apparatus according to an embodiment of the present invention; FIG. 1 is a configuration diagram of an embodiment of a fueling device according to the present invention, and FIG. 2 is a block diagram of each device provided in the fueling device.

The refueling device 11 is a one-pump, two-meter system refueling device, and one pump 14, two flow meters 15, 16 and two solenoid valves 1 are provided inside the main body 12 of the device.
7, 18 are provided. Further, the upper end of the pipeline 20 inserted into the underground tank 19 extends into the apparatus body 12 and is connected to the suction port of the pump 14. The pipe line 21 connected to the discharge port of the pump 14 is connected to the refueling system 1
Of the oil supply system 2 and the liquid supply line 23 of the oil supply system 2 are branched to form two oil supply systems.

The flow meter 1 is installed in the liquid supply line 22 of the oil supply system 1.
5 and the solenoid valve 17 are arranged, and the liquid supply line 2 of the oil supply system 2
3, a flow meter 16 and a solenoid valve 18 are arranged.
Further, the pump motor 14 a of the pump 14 and the flow meter 1
5, 16 pulse oscillators 15a, 16a and solenoid valve 1
The solenoids 17a and 18a of 7 and 18 are connected to the control device 24, respectively.

On both sides of the apparatus main body 12, a liquid feeding conduit 2 is provided.
Refueling hoses 25 and 26 connected to 2 and 23 are drawn out, and refueling nozzles 27 and 28 are connected to the tips of the refueling hoses 25 and 26, respectively. Refueling nozzle 27, 28
Is provided with liquid level detection sensors 29 and 30 including ultrasonic sensors and the like at the tip openings of the discharge pipes 27a and 28a. The liquid level detection sensors 29 and 30 have signal lines 31 and 3 respectively.
2 to the control device 24.

Further, the apparatus main body 12 has nozzle hooks 33 and 34 for hooking the oil supply nozzles 27 and 28 on both side surfaces. Refueling nozzles 27,
Nozzle switches 33a and 34a for outputting a signal when 28 is applied are provided. In addition, indicators 35 and 36 for displaying the flow rate (lubrication amount) of refueling and the amount of refueling are arranged at the upper portion of the apparatus main body 12 which is easy to see. The nozzle switches 33a and 34a and the indicators 35 and 36 are also connected to the control device 24.

Further, on both side surfaces of the apparatus main body 12, a preset switch 37 for setting a preset oil supply amount,
38 are provided. When a preset switch 37, 38 including a numeric keypad or the like is operated as described later, the control device 24 sets the refueling system to the preset refueling mode and stores the input numerical value in the memory as the preset refueling amount. When the preset lubrication mode is set in one refueling system, when the other refueling system is normally refueling, the pump motor 14a of the pump 14 is controlled and preset with the solenoid valves 17 and 18 open. The preset adjustment is carried out so that the predetermined amount of refueling is performed. The open check of the refueling nozzle after completion of the preset refueling is performed by opening / closing the solenoid valve 17 or 18 of one refueling system.

The refueling process executed by the controller 24 will be described with reference to the flow charts of FIGS. 3 to 7. Note that FIG. 3 is a flowchart of the main processing, and FIGS. 4 to 7 are flowcharts of a subroutine for appropriately executing the interrupt processing for each mode according to the mode set by the main processing.

In the main process of FIG. 3, the control device 24
Determines whether or not the nozzle switch 33a of the refueling system 1 is turned off in step S1 (hereinafter "step" is omitted). When the nozzle switch 33a is turned on in S1, the process proceeds to S2, and it is determined whether the nozzle switch 34a of the refueling system 2 is turned off. And
When the nozzle switch 34a is turned on in S2, the process returns to S1 again.

Therefore, when both the fueling nozzles 27 and 28 are still hung on the nozzle hooks 33 and 34, S1,
Repeating S2, nozzle switch 33a, 34a
Are watching. Now, when the worker at the gas filling station removes the fueling nozzle 27 of the fueling system 1 from the nozzle hook 33, the nozzle switch 33a is switched off, and the process proceeds to S3.

In S3, it is determined whether or not there is a preset input from the preset switch 37 of the refueling system 1.
If there is a preset input in S3, S4
Then, the preset refueling mode of the refueling system 1 is set. However, if there is no preset input in S3, the process proceeds to S5, and the full tank refueling mode of the refueling system 1 is set.

When the refueling mode is set in S4 or S5, the process proceeds to S6, in which it is determined whether the nozzle switch 33a of the refueling system 1 is turned on. When the nozzle switch 33a is off in S6, the process returns to S1.
When the nozzle switch 33a is on, the series of main processes is ended.

Further, when the worker at the gas filling station removes the fueling nozzle 28 of the fueling system 2 from the nozzle hook 34, the nozzle switch 34a is turned off and the process proceeds to S7. In S7, it is determined whether or not there is a preset input from the preset switch 38 of the refueling system 2. If there is a preset input in S7, the process proceeds to S8, and the refueling system 2
Set the preset lubrication mode. However, if there is no preset input in S7, the process proceeds to S9 and the full tank refueling mode of the refueling system 2 is set.

When the refueling mode is set in S8 or S9, the process proceeds to S10 and the nozzle switch 34a of the refueling system 2 is set.
It is determined whether or not is turned on. When the nozzle switch 34a is off in S10, the process returns to S1. When the nozzle switch 34a is on, the series of main processes is ended.

When the refueling mode of each refueling system is set by the above main processing, the control device 24 executes the interrupt processing of FIGS. 4 to 7 for each refueling system. Next, the processing of the preset lubrication mode of the lubrication system 1 shown in FIG. 4 will be described. In S11 of FIG. 4, the nozzle switch 3 of the refueling system 1
It is determined whether or not 3a is turned off. Then, since the worker of the gas station performs the fueling work, when the fueling nozzle 27 of the fueling system 1 is removed from the nozzle hook 33, the nozzle switch 3
3a switches off. Therefore, when the nozzle switch 33a is turned off in S11, the process proceeds to S12 and the pump 1
The pump motor 14a of No. 4 is activated. And S13
The solenoid valve 17 of the refueling system 1 is opened with.

In the next step S14, the preset switch 37
The preset value input from is stored in the memory. When a worker at the gas filling station inserts the discharge pipe 27a of the fueling nozzle 27 into the fueling port (not shown) of the automobile and operates the nozzle lever to open the valve, the oil liquid sent from the pump 14 is stored in the fuel tank of the automobile. Be refueled. Therefore, in S15, the flow rate pulse output from the pulse oscillator 15a of the flow meter 15 is read at the start of refueling.

In the next step S16, it is checked whether or not the amount of fuel supplied to the fuel tank has reached a preset value of 0.3 liters or less. If the amount of oil supply is less than the preset value of 0.3 liters or less. The processing of S15 and S16 is repeated.
When the amount of refueling reaches 0.3 liters before the preset value, the process proceeds to S17, and the pump motor 14a of the pump 14 is stopped.

In S18, the preset waiting time t ₁
It is determined whether or not has elapsed, and when the waiting time t ₁ has elapsed, the process proceeds to S19, where the pump motor 1 of the pump 14
4a is restarted. Then, in S20, it is determined whether or not a preset refueling time t ₂ has elapsed, and when the refueling time t ₂ has elapsed, the process proceeds to S21, in which the refueling amount refueled in the fuel tank reaches a preset value. Whether or not it has reached the preset value, and if the amount of refueling has not reached the preset value, the above-described processing of S17 to S21 is repeated.

By repeating the processing of S17 to S21 in this manner, the pump 14 is operated intermittently, and intermittent oil supply for preset adjustment is performed until the amount of oil supply reaches a preset value. Then, when the amount of refueling reaches the preset value, the process proceeds to S22, and the solenoid valve 17 of the refueling system 1 is closed.

In the next step S23, it is determined whether or not the nozzle switch 33a of the refueling system 1 is turned on. And
After the preset refueling is completed, when the operator of the refueling station returns the refueling nozzle 27 of the refueling system 1 to the nozzle hook 33, the nozzle switch 33a is switched on. Therefore, when the nozzle switch 33a is turned on in S23, the process proceeds to S24, and the solenoid valve 17 of the refueling system 1 is opened to check that the refueling nozzle 27 is returned to the nozzle hook 33 in the valve closed state.

Then, in S25, it is determined whether or not a preset open check time t ₃ has passed, and when the open check time t ₃ has passed, S26
Then, the solenoid valve 17 of the refueling system 1 is closed. Next S
At 27, the number n of pulses output from the pulse oscillator 15a of the flow meter 15 during that time is counted to confirm that the number n of pulses is less than the set value N. In S27, when the pulse number n is less than the set value N, it is determined that the refueling nozzle 27 is closed, and when the pulse number n is the set value N or more, the refueling nozzle 27 is opened. If it is determined that the operation is being performed, the process proceeds to S28 and an alarm is issued to notify the worker.

Next, in S29, it is determined whether or not the other refueling system 2 is refueling. That is, when the nozzle switch 34a of the refueling system 2 is off, it is determined that the refueling system 2 is in refueling, and the processing of the preset refueling mode of the refueling system 1 is ended. However, when the nozzle switch 34a of the refueling system 2 is on, it is determined that the refueling system 2 is not refueling, and the process proceeds to S30 and the pump motor 1 of the pump 14 is operated.
4a is stopped.

Next, the processing in the full oil supply mode of the oil supply system 1 shown in FIG. 5 will be described. In S31 of FIG. 5, the refueling nozzle 27 is removed from the nozzle hook 33 and the nozzle switch 33
When a is turned off, the process proceeds to S32, and the pump motor 14a of the pump 14 is started. Then, in S33, the solenoid valve 17 of the refueling system 1 is opened.

When a worker at a gas filling station inserts the discharge pipe 27a of the fueling nozzle 27 into a fueling port (not shown) of the automobile and opens the nozzle lever, the oil liquid sent from the pump 14 is discharged from the automobile. The fuel tank is refueled. for that reason,
In S34, the pulse oscillator 1 of the flow meter 15 is started at the same time as refueling is started.
The flow rate pulse output from 5a is read.

In the next step S35, it is determined whether or not the liquid level detection sensor 29 provided at the tip of the discharge pipe 27a of the oil supply nozzle 27 has detected the liquid level due to the rise of the liquid level at the oil supply port. Refueling is performed until the sensor 29 detects the liquid level. Then, when the liquid surface detection sensor 29 detects the liquid surface of the oil supply port, the process proceeds to S36, and the solenoid valve 17 of the oil supply system 1 is closed.

As described above, in the full tank refueling mode, the solenoid valve 17 is closed only when the full tank refueling is completed, while the intermittent refueling for preset adjustment is performed in the other refueling system 2. Also, the valve remains open during the open check of the refueling nozzle. Therefore, when the fuel supply system 2 performs the intermittent fuel supply, the fuel supply system 1 similarly performs the intermittent fuel supply.

Moreover, the open check of the refueling nozzle is performed by the opening / closing operation of the solenoid valve 17 as in S24 to 26, so that the pump motor 14a remains in operation. Therefore, when performing the open check of the refueling nozzle, refueling of the refueling system that normally refuels is not temporarily interrupted.

That is, if the solenoid valve 17 during normal refueling is closed only during the intermittent refueling for preset adjustment in the other refueling system 2 and during the open check of the refueling nozzle as in the prior art, the refueling system is closed. Since the refueling of No. 1 is interrupted, there is a problem that the refueling time is extended by that amount.

However, the solenoid valve 17 of the refueling system 1 is opened during the intermittent refueling for preset adjustment in the refueling system 2 as in the present embodiment, and the refueling system 1 does not interrupt the refueling. , Refueling is performed intermittently. Further, during the open check of the refueling nozzle, the solenoid valve 18 of the refueling system 2 is opened and closed while the pump motor 14a is operating, so that refueling of the refueling system 1 is not interrupted. Therefore, the refueling time on the refueling system 1 side can be shortened as compared with the conventional method.

Since the preset refueling mode and the full tank refueling mode of the refueling system 2 are the same as those of the refueling system 1 as shown in FIGS. 6 and 7, description of the processing of FIGS. 6 and 7 will be made. Is omitted. Further, when the refueling system 1 and the refueling system 2 are refueled at the same time, the combinations are as follows: preset refueling mode and full refueling mode, preset refueling mode and preset refueling mode, full refueling mode and preset refueling mode, full refueling mode. There are four types of full tank refueling mode. In cases other than these combinations, when one refueling system is normally refueling, the other refueling system intermittently operates the pump motor 14a for preset adjustment and open check.

In that case, the solenoid valves 17 and 18 of each oil supply system
The pump motor 14a is controlled by the flowcharts of FIGS. The control operation when performing the preset adjustment and the open check is as shown in the time chart of FIG. That is, refueling system 1
In the normal refueling state, the solenoid valve 17 remains open as shown in FIG. 8 (A).

Then, when the refueling system 2 is under preset adjustment, as shown in FIG.
Runs intermittently only during preset adjustment, and continues normal operation after preset adjustment is completed. Further, the solenoid valve 18 of the refueling system 2 is opened during the preset adjustment and the open check of the refueling nozzle 28 as shown in FIG. 8C. Therefore, the intermittent refueling of the preset adjustment is performed by the intermittent operation of the pump motor 14a, and the open check is performed by the opening / closing operation of the solenoid valve 18. Therefore, in the refueling system 1, refueling is performed even while the preset adjustment and the open check of the refueling nozzle 28 are performed in the refueling system 2, so that the refueling time is shortened and the refueling is interrupted and the refueling ends as in the conventional case. There is no mistake.

In the above embodiment, the fueling device for refueling the fuel tank of the automobile is taken as an example. However, the invention is not limited to this, and it can be applied to a refueling device configured to refuel oil to another tank. Of course.

[0045]

As described above, according to the first aspect of the present invention, when a plurality of oil supply systems are being simultaneously refueled,
When performing the preset operation for one refueling system, the refueling of the other refueling system is interrupted in order to maintain the open / close valve of the other refueling system in the open state and to perform the preset adjustment of the one refueling system. This can be avoided, and it is possible to prevent the refueling time of another refueling system from being extended due to the refueling interruption.

According to the second aspect of the present invention, when the valve opening detection operation for one refueling system is performed while refueling a plurality of refueling systems at the same time, the opening / closing valves of other refueling systems are opened. In order to maintain the valve open state, it is possible to avoid interruption of refueling of the other refueling system to perform the valve opening detection operation of one refueling system, and the refueling time of the other refueling system is extended by the interruption of refueling. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a schematic configuration of an embodiment of a fuel supply device according to the present invention.

FIG. 2 is a block diagram of each device of the oil supply device.

FIG. 3 is a flowchart of a main process executed by a control device.

FIG. 4 is a flowchart of a preset refueling mode of refueling system 1.

FIG. 5 is a flowchart of a full tank refueling mode of the refueling system 1.

FIG. 6 is a flowchart of a preset refueling mode of refueling system 2.

FIG. 7 is a flowchart of a full tank refueling mode of a refueling system 2.

FIG. 8 is a time chart for explaining a control operation when performing preset adjustment and open check.

FIG. 9 is a time chart for explaining a control operation when performing conventional preset adjustment and open check.

[Explanation of symbols]

 11 Refueling device 14 Pump 14a Pump motor 15,16 Flowmeter 15a, 16a Pulse oscillator 17,18 Solenoid valve 17a, 18a Solenoid 19 Underground tank 15a, 16a Pulse oscillator 24 Control device 25,26 Refueling hose 27,28 Refueling nozzle 29, 30 Liquid level detection sensor 33, 34 Nozzle hook 33a, 34a Nozzle switch 35, 36 Indicator

Claims (2)

[Claims] 1. A plurality of oil supply systems each comprising an oil supply hose having an oil supply nozzle for supplying oil liquid to a vehicle tank at its tip and an oil supply pipe connected to the base end of the oil supply hose and having an opening / closing valve and a flow meter in the middle thereof. And a liquid feed means that is connected to the plurality of oil feed systems and can feed the oil liquid to the plurality of oil feed systems at the same time, and is connected to the flow meter to feed a desired amount of oil liquid to the vehicle tank. In order to provide a refueling device comprising a preset control means for repeatedly driving and stopping the liquid feeding means, the preset control means, when performing refueling simultaneously for the plurality of refueling systems, sets the refueling system to one refueling system. A refueling device, characterized in that when the preset operation is performed, the on-off valve of another refueling system is maintained in an open state. 2. An oil supply nozzle having an internal valve mechanism for supplying oil liquid to a vehicle tank, an oil supply hose having the oil supply nozzle at its tip, and an opening / closing valve connected to the base end of the oil supply hose, A plurality of oil supply systems each including an oil supply pipe having a flow meter are provided, and the liquid supply means is connected to the plurality of oil supply systems and can simultaneously supply the oil liquid to the plurality of oil supply systems, and the operation of the oil supply nozzle. Refueling work start signal or refueling work end signal is output from the refueling work start signal or the refueling work end signal based on the In the oil supply device comprising a valve opening detection control means for driving the liquid feeding means for a minute time to detect whether the valve mechanism of the oil supply nozzle is open, the valve opening detection control means is When performing the valve opening detection operation for one refueling system while simultaneously refueling the oil system, the on-off valve of the other refueling system is maintained in the open state. .