JP4787115B2 - Fluid supply device - Google Patents

Description

  The present invention relates to a fluid supply device, and more particularly to a fluid supply device configured to supply two kinds of fluids at predetermined ratios.

  For example, in a fuel supply device that supplies fuel (fluid) such as gasoline to a fuel tank of a vehicle, an arbitrary supply amount (a supply amount set as a preset value) is set in the fuel tank by setting the scheduled supply amount as a preset value. It is comprised so that it may be supplied (for example, refer patent document 1).

In addition to a fuel tank that stores light oil (fluid), a plurality of types of liquid (fluid) are stored, such as a vehicle that includes a urea water (fluid) tank that is used to purify exhaust gas. The number of vehicles with tanks has been increasing in recent years. When a vehicle equipped with such two types of liquid tanks arrives at a gas station for refueling, the preset supply amount for each type of liquid to be supplied to each of the two types of liquid tanks is individually preset to set the liquid level. Will supply.
Japanese Patent Laid-Open No. 3-133794

  In the case of supplying each fluid to a plurality of tanks, in the prior art described in Patent Document 1, it is necessary to input and set a preset value for each type of fluid. There was a problem that it was complicated and troublesome. Further, in the conventional apparatus, when the planned supply amount of one liquid and the other liquid is greatly different, there is a possibility that the planned supply amount of one liquid is mistaken for the preset supply amount of the other liquid and preset. is there. More specifically, in the case of a vehicle provided with a tank of urea water (fluid) used for purifying exhaust gas in addition to a fuel tank that stores light oil, urea water compared to the consumption of light oil. Therefore, if the planned supply amount of light oil and the planned supply amount of urea water are mistakenly preset in such a vehicle, the planned supply amount of one light oil will be significantly reduced, and the urea supply of the other will be reduced. The planned supply amount of water is greatly increased, and the operator performs an operation for supplying again the light oil whose supply amount is insufficient, which requires extra labor.

  In view of the above circumstances, an object of the present invention is to provide a fluid supply apparatus that solves the problem.

  In order to solve the above problems, the present invention has the following means.

  The present invention includes a first fluid supply system that supplies a first fluid, a second fluid supply system that supplies a second fluid of a type different from the first fluid, and the first fluid supply system. The first preset value setting means for setting the scheduled supply amount of the first fluid supplied by the first preset value as the first preset value, and the scheduled supply amount of the second fluid with respect to the scheduled supply amount of the first fluid Based on the ratio stored in the storage means, the storage means for storing the ratio of the second fluid corresponding to the first preset value set by the first preset value setting means. A second preset value setting means for calculating and setting the scheduled supply amount of the second fluid as a preset value of the second fluid, and when the supply amount of the first fluid reaches the first preset value According to the first fluid supply system Control for stopping the supply of the first fluid and stopping the supply of the second fluid by the second fluid supply system when the supply amount of the second fluid reaches a second preset value. Means for solving the above-mentioned problems.

  The present invention also provides a first fluid supply system that supplies a first fluid, a second fluid supply system that supplies a second fluid of a type different from the first fluid, and the first fluid. And a ratio of the planned supply amount of the second fluid with respect to the planned supply amount of the first fluid. Storage means for storing, and the planned supply amount of the first fluid and the scheduled supply amount of the second fluid corresponding to the planned purchase price set by the planned purchase price setting means are stored in the storage means. Preset value setting means for calculating based on the ratio and setting the scheduled supply amount of the first fluid and the scheduled supply amount of the second fluid as the preset value of the first fluid and the preset value of the second fluid; The supply amount of the first fluid is When the preset value of 1 is reached, the supply of the first fluid by the first fluid supply system is stopped, and when the supply amount of the second fluid reaches the second preset value, The above-mentioned problem is solved by providing a control means for stopping the supply of the second fluid by the second fluid supply system.

  The present invention also provides a first fluid supply system that supplies a first fluid, a second fluid supply system that supplies a second fluid of a type different from the first fluid, and the first fluid. Storage means for storing the ratio of the planned supply amount of the second fluid to the planned supply amount of the second fluid, and the second fluid corresponding to the supply amount of the first fluid supplied by the first fluid supply system Preset value setting means for calculating a scheduled supply amount based on the ratio stored in the storage means and setting the scheduled supply amount of the second fluid as a preset value of the second fluid; and the second fluid supply Control means for stopping the supply of the second fluid by the second fluid supply system when the supply amount of the second fluid by the system reaches the preset value of the second fluid, The present invention solves the above problems.

  According to the present invention, the scheduled supply amount of the second fluid corresponding to the first preset value set by the first preset value setting means is calculated based on the ratio stored in the storage means, and the second Is set as the preset value of the second fluid, and when the supply amount of the first fluid reaches the first preset value, the supply of the first fluid by the first fluid supply system In order to stop the supply of the second fluid by the second fluid supply system when the supply amount of the second fluid reaches the second preset value, the preset value of the first fluid is set to By setting, the scheduled supply amount of the second fluid corresponding to the first preset value is calculated and set, so that the number of preset operations by the operator can be reduced by half, and the preset value can be reduced by reducing input mistakes. For incorrect input of values Therefore, the operation for correcting the supply amount can be reduced.

  According to the present invention, the planned supply amount of the first fluid and the planned supply amount of the second fluid corresponding to the planned purchase price are calculated based on the ratio stored in the storage means, and the first fluid And the preset supply amount of the second fluid are set as the preset value of the first fluid and the preset value of the second fluid, and the supply amount of the first fluid reaches the first preset value. In this case, the supply of the first fluid by the first fluid supply system is stopped, and when the supply amount of the second fluid reaches the second preset value, the second fluid supply system performs the second operation. In order to stop the fluid supply, the preset value of the first fluid is set, whereby the scheduled supply amount of the second fluid corresponding to the first preset value is calculated and set. Can be cut in half and presets Reduce input errors can be reduced the amount of supply of the corrections by the erroneous input of the preset values.

  Further, according to the present invention, the planned supply amount of the second fluid corresponding to the supply amount of the first fluid supplied by the first fluid supply system is calculated based on the ratio stored in the storage means, The scheduled supply amount of the second fluid is set as a preset value of the second fluid, and when the supply amount of the second fluid by the second fluid supply system reaches the preset value of the second fluid, In order to stop the supply of the second fluid by the second fluid supply system, the preset supply amount of the second fluid corresponding to the first preset value is calculated by setting the preset value of the first fluid. Thus, the number of preset operations by the operator can be reduced to half, and the mistake in inputting preset values can be reduced to reduce the supply amount correcting operation due to erroneous input of preset values.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing an embodiment of a fluid supply apparatus according to the present invention. As shown in FIG. 1, the liquid supply apparatus 10 includes a first liquid supply system 20A that supplies light oil (first fluid) and a second liquid supply system that supplies urea water (second fluid). 20B.

  The first liquid supply system 20A has a plurality of liquid supply systems so as to be able to supply oil liquids other than light oil (for example, liquid fuel such as gasoline). Here, for convenience of explanation, the liquid supply system for light oil is used. Only that will be described.

  In the first liquid supply system 20A, a pump 24A, a flow meter 26A, and an electromagnetic valve 28A are disposed in a liquid supply pipe line 22A inserted through an underground tank (not shown) in which light oil is stored. A liquid supply hose 30A and a supply nozzle 32A are connected to the downstream side of the liquid supply pipe line 22A. The motor 25A, the flow meter 26A, and the electromagnetic valve 28A of the pump 24A are connected to the control unit 34A via a signal line (indicated by a broken line in FIG. 1) so as to be controlled by the control unit 34A.

  Further, a flow rate indicator 36A, a nozzle switch 38A of a nozzle hook 37A, and a memory 39 are connected to the control unit 34A. The first liquid supply system 20A includes a liquid supply line 22A, a pump 24A, a flow meter 26A, an electromagnetic valve 28A, a liquid supply hose 30A, and a supply nozzle 32A.

  Furthermore, the control unit 34A is communicably connected to the control units 34B and 34C and the memory 39 of the second liquid supply system 20B via a communication line (indicated by a broken line in FIG. 1). The second liquid supply system 20B has substantially the same configuration as the first liquid supply system 20A, and includes a liquid supply line 22B, a pump 24B, a flow meter 26B, an electromagnetic valve 28B, a liquid supply hose 30B, and a supply. It is configured by the nozzle 32B. The controller 34B is connected to the motor 25B of the pump 24B, the flow rate indicator 36B, the nozzle switch 38B of the nozzle hook 37B, and the memory 39.

  Further, the fuel supply device 10 is equipped with a control device 34 having the control units 34A and 34B and an overall control unit 34C that controls the control units 34A and 34B. A setting device 40 for setting the liquid to be used is connected. The setting device 40 is provided with an input device 40a for inputting the type of liquid to be supplied and the planned supply amount (or purchase amount), and a deposit / withdrawal machine 40b for paying the purchase amount.

  The memory 39 stores a control program executed by each of the control units 34A to 34C and a ratio (for example, a predetermined mixing ratio) of the planned supply amount of urea water to the planned supply amount of light oil.

  When light oil and urea water are input as the liquid types to be supplied from the input device 40a, the control device 34 is scheduled to supply urea water (second fluid) corresponding to the light oil supply amount (first preset value). An amount is calculated based on the ratio stored in the memory (storage means) 39, and a control program for setting this calculated value as a preset value of urea water is executed.

  When supplying light oil and urea water, the operator inputs (sets) that there are two types of liquids to be supplied by the input operation of the input device 40a, and inputs the scheduled supply amount of light oil, By the arithmetic processing of the control device 34, the scheduled supply amount of urea water is automatically set as a preset value. Therefore, the setting operation by the operator is simplified and the operation load is reduced, and for example, it is possible to prevent an operation error such as setting the expected supply amount of urea water mistakenly for that of light oil.

  FIG. 2 is a side view showing a configuration example of an automobile on which a light oil tank and a urea water tank are mounted. As shown in FIG. 2, the automobile 41 is equipped with an engine (not shown) that uses light oil as fuel, and a light oil tank 42 and a urea water tank 44 are juxtaposed on the side of the vehicle body. Since the consumption amount of urea water in the automobile 41 is smaller than the consumption amount of light oil, the urea water tank 44 is smaller than the capacity of the light oil tank 42.

  In this embodiment, the cap 42b is removed from the supply port 42a of the light oil tank 42, the light oil supply nozzle 32A is inserted into the supply port 42a, and the nozzle lever (not shown) is operated in the valve opening direction. Supply is started. Subsequently, when light oil is being supplied, the cap 44b is removed from the supply port 44a of the urea water tank 44, the supply nozzle 32B for urea water is inserted into the supply port 44a, and a nozzle lever (not shown) is inserted. The urea water supply is started by operating in the valve opening direction. At that time, the supply of urea water is required under the condition that light oil is being supplied.

  Here, the control processing executed by the control device 34 will be described with reference to the flowchart of FIG. As shown in FIG. 3, the control device 34 clears various variables such as the type and the planned supply amount set in the previous process in S <b> 11. In the next S12, the supply ratio (ratio) a between the light oil (liquid type 1) and the urea water (liquid type 2) is read from the memory 39 and set.

  Then, it progresses to S13 and it is checked whether the scheduled supply amount (designated amount X) of light oil was input by the input device 40a. In S13, when the planned supply amount X of light oil is input (in the case of YES in S13), the process proceeds to S14, where the planned supply amount X is set as the preset value of light oil, and the input planned supply of light oil is performed. A predetermined supply amount Y of urea water corresponding to the amount X is calculated based on a predetermined supply ratio (ratio) a (first preset value setting means of claim 1). For example, if the supply ratio (ratio) a = 5 and the planned supply amount X = 20L, Y = 20 ÷ 5 = 4L.

  In the next S15, X is set to the supply amount target value W1 for the first liquid supply system 20A, and Y is set to the supply amount target value W2 for the second liquid supply system 20B. 2 preset value setting means). Thereby, the control units 34A and 34B of the liquid supply systems 20A and 20B start the pumps 24A and 24B and open the electromagnetic valves 28A and 28B to set the supply amount target values W1 and W2 as preset values, respectively. Preset control of 20A and 20B is started (S16). Therefore, when the operator inserts the supply nozzles 32A and 32B into the supply port 42a of the light oil tank 42 and the supply port 44a of the urea water tank 44 and opens the respective nozzle levers, the pumps 24A and 24B supply liquid. The light oil and urea water thus supplied are supplied to the light oil tank 42 and the urea water tank 44, respectively.

  In S17, it is checked whether or not the light oil supply amount has reached the supply amount target value W1 (scheduled supply amount X). When the supply amount of the light oil does not reach the supply amount target value W1 (scheduled supply amount X) in S17 (NO in S17), the process proceeds to S19, and the supply amount of urea water becomes the supply amount target value W2 (scheduled supply). Check whether the amount Y) has been reached. In S17, when the supply amount of the light oil reaches the supply amount target value W1 (scheduled supply amount X) (in the case of YES in S17), the process proceeds to S18, and the solenoid valve 28A is closed or the pump 24A is turned on. The supply by the first liquid supply system 20A is stopped to stop.

  In S19, when the urea water supply amount does not reach the supply amount target value W2 (scheduled supply amount Y) (NO in S19), the process proceeds to S21, and whether or not the supply of light oil and urea water is stopped. Check. In S19, when the supply amount of urea water reaches the supply amount target value W2 (scheduled supply amount Y) (YES in S19), the process proceeds to S20 to close the solenoid valve 28B or the pump. 24B is stopped and the supply by the second liquid supply system 20B is stopped.

  In S21, when the supply of light oil and urea water does not stop (NO in S21), the process returns to S17, and the processes of S17 to S21 are repeated. In S21, when the light oil supply amount reaches the supply amount target value W1 (scheduled supply amount X) and the urea water supply amount reaches the supply amount target value W2 (scheduled supply amount Y) (in S21). In the case of YES), the current control process is terminated.

  In this way, in this embodiment, by inputting the planned supply amount of light oil, the scheduled supply amount of urea water is calculated and automatically preset at a predetermined ratio, so that the operator individually sets each preset value. It is not necessary to perform an input operation, and the labor of the operation is simplified correspondingly, and an erroneous input due to an operation error can be prevented.

  In the present embodiment, the control process of FIG. 3 is described as being executed by the control device 34. However, the present invention is not limited to this. For example, the control units 34A and 34B and the overall control unit 34C share control. You may make it perform. In that case, the control units 34A and 34B individually control the pumps 24A and 24B and the electromagnetic valves 28A and 28B, respectively.

  Next, modification 1 (control process 2) of the control process executed by the control device 34 will be described with reference to the flowcharts of FIGS.

  As shown in FIG. 4, the control device 34 clears various variables such as the type and the scheduled supply amount set in the previous process in S31. In the next S32, the supply ratio (ratio) a between the light oil (liquid type 1) and the urea water (liquid type 2) is read from the memory 39 and set.

  Then, it progresses to S33 and it is checked whether the designated amount C (purchase amount) was input by the input device 40a. In S33, when the designated amount C is input (YES in S33), the process proceeds to S34, where the designated amount C is stored in the memory 39 and each liquid unit price (light oil 1) stored in advance in the memory 39 is stored. The amount A per liter and the amount B per liter of urea water are read (planned purchase amount setting means according to claim 2).

  Subsequently, in S35, a supply ratio b in money is calculated from the supply ratio (ratio) a and unit prices A and B of light oil and urea water. For example, the supply ratio b is obtained by b = a · A / B. In the next S36, the specified amount C is allocated to the light oil supplyable amount Y1 and the urea water supplyable amount Y2 using the supply ratio b in the above amount. For example, the light oil suppliable amount Y1 is obtained by an arithmetic expression Y1 = C {b / (b + 1)}, and the urea water suppliable amount Y2 is obtained by an arithmetic expression Y2 = C {1 / (b + 1)}.

  In next S37, Y1 is set to the amount target value (preset value) W1 of the first liquid supply system 20A, and Y2 is set to the amount target value (preset value) W2 of the second liquid supply system 20B (billing). Item 2 preset value setting means). Then, the process proceeds to S38 in FIG. 5, and the control units 34A, 34B of the liquid supply systems 20A, 20B start the pumps 24A, 24B and open the electromagnetic valves 28A, 28B to set the supply amount target values W1, W2, respectively. Preset control of the liquid supply systems 20A and 20B is started as a preset value. Therefore, when the operator inserts the supply nozzles 32A and 32B into the supply port 42a of the light oil tank 42 and the supply port 44a of the urea water tank 44 and opens the nozzle lever, the liquid is fed by the pumps 24A and 24B. Light oil and urea water are supplied to the light oil tank 42 and the urea water tank 44.

  In the next S39, the state flag f1 of the first liquid supply system 20A is set to f1 = 1, and the state flag f2 of the second liquid supply system 20B is set to f2 = 1. Subsequently, the process proceeds to S40, and it is checked whether or not the amount d1 of the light oil supply amount has reached the amount target value W1. In S40, when the light oil supply amount d1 reaches the target amount W1 (in the case of YES in S40), the process proceeds to S41, the pump 24A is stopped to temporarily stop the light oil supply, and the first liquid The status flag f1 of the supply system 20A is set to f1 = 2 (meaning temporary stop).

  Subsequently, in S42, it is checked whether or not the urea water state flag is f2 = 1. In S42, when the urea water state flag is not f2 = 1 (in the case of NO in S42), the process proceeds to S43, and the change e is calculated. The change e is obtained by the arithmetic expression e = C− (d1 + d2).

  Then, it progresses to S44 and it is checked whether a change is zero. In S44, when there is no change e (NO in S44), the process proceeds to S45, and the amount target value W1 of the first liquid supply system 20A for supplying light oil is reset. That is, the change e is added to the amount target value W1, and a new W1 is set as the amount target value. Then, in S46, the pump 24A is activated to restart the supply of light oil.

  Further, in S40, when the light oil supply amount d1 has not reached the target amount W1 (NO in S40), or in S42, when the urea water state flag is f2 = 1, or in S44 If there is a change e (YES in S44), the process proceeds to S47. In S47, it is checked whether or not a supply end switch (not shown) of the first liquid supply system 20A is turned on.

  In S47, when a supply end switch (not shown) of the first liquid supply system 20A is turned on (in the case of YES in S47), the process proceeds to S48, and the status flag f1 is set to f1 = 3 (supply end is completed). Set to mean). Subsequently, in S49, it is checked whether or not the state flag f2 of the second liquid supply system 20B for supplying urea water is f2 = 3 (meaning the end of supply).

  In S49, when the state flag f2 of the second liquid supply system 20B is not f2 = 3 (in the case of NO in S49), or in S47, the supply end switch (not shown) of the first liquid supply system 20A If is off, the process proceeds to S50 shown in FIG. In S49, when the state flag f2 of the second liquid supply system 20B is f2 = 3 (YES in S49), the process proceeds to S60 described later.

  In S50, it is checked whether or not the urea water supply amount d2 has reached the target amount W2. In S50, when the urea water supply amount d2 reaches the target amount W2 (in the case of YES in S50), the process proceeds to S51, where the pump 24B is stopped and the supply of urea water is temporarily stopped. The status flag f2 of the liquid supply system 20B is set to f2 = 2 (meaning temporary stop).

  Subsequently, in S52, it is checked whether or not the light oil state flag is f1 = 1. In S52, if the light oil state flag is f1 = 1 (YES in S52), the process proceeds to S53, and the change e is calculated. The change e is obtained by the arithmetic expression e = C− (d1 + d2).

  Then, it progresses to S54 and it is checked whether a change is zero. In S54, when there is a change e (YES in S54), the process proceeds to S55, and the amount target value W2 of the second liquid supply system 20B for supplying urea water is reset. That is, the change e is added to the amount target value W2, and new W2 is set as the amount target value. In S56, the pump 24B is activated to resume the supply of urea water.

  In S50, when the urea water supply amount d2 does not reach the amount target value W2 (NO in S50), or in S52, the light oil state flag is not f1 = 1 (NO in S52). ) Or when there is no change e in S54 (NO in S54), the process proceeds to S57. In S57, it is checked whether or not a supply end switch (not shown) of the second liquid supply system 20B is turned on.

  In S57, when the supply end switch (not shown) of the second liquid supply system 20B is turned on, the process proceeds to S58, and the status flag f2 is set to f2 = 3 (meaning the supply end). Subsequently, in S59, it is checked whether or not the state flag f1 of the first liquid supply system 20A for supplying light oil is f1 = 3 (meaning the end of supply).

  In S59, when the state flag f1 of the first liquid supply system 20A is f1 = 3 (NO in S59), or in S57, the supply end switch (not shown) of the second liquid supply system 20B. Is OFF (NO in S57), the process returns to S40 shown in FIG. 5 and the processes after S40 are repeated. In S59, when the state flag f1 of the first liquid supply system 20A is not f1 = 3 (NO in S59), the process proceeds to S60.

  In S60, the change e is calculated, and the change e is returned from the depositing / dispensing machine 40b. In S61, the pumps 24A and 24B are stopped and the solenoid valves 28A and 28B are closed to stop the supply of light oil and urea water.

  Thus, in this embodiment, by inputting the purchase price of light oil and urea water, the scheduled supply amount of light oil and urea water is calculated at a predetermined ratio and automatically preset. There is no need to input values individually, which simplifies the operation time and prevents erroneous input due to an operation error.

  Although the control processing in FIGS. 4 to 6 has been described as being executed by the control device 34, the present invention is not limited to this, and for example, the control units 34A and 34B and the overall control unit 34C execute control in a shared manner. You may do it. In that case, the control units 34A and 34B individually control the pumps 24A and 24B and the electromagnetic valves 28A and 28B, respectively.

  Next, modification 2 (control process 3) of the control process executed by the control units 34A and 34B of the control device 34 will be described with reference to the flowcharts of FIGS.

  As shown in FIG. 7, the controller 34A checks whether or not the supply nozzle 32A has been removed from the nozzle hook 37A in S80. When the nozzle switch 38A is turned off in S80, it is determined that the supply nozzle 32A has been removed from the nozzle hook 37A (YES in S80), the process proceeds to S81, the pump 24A is activated, and the solenoid valve 28A is opened. Let

  Subsequently, in S82, the supply amount is calculated by integrating the flow rate pulses output from the flow meter 26A. In the next S83, it is checked whether or not the supply nozzle 32A has been returned to the nozzle hook 37A. When the nozzle switch 38A is turned on in S83, it is determined that the supply nozzle 32A has been returned to the nozzle hook 37A (YES in S83), the process proceeds to S84, and the pump 24A is stopped.

  Then, the light oil supply amount Q 1 is stored in the memory 39. This completes the supply of light oil by the first liquid supply system 20A.

  In the urea water control process shown in FIG. 8, the control unit 34B checks whether or not the supply nozzle 32B has been removed from the nozzle hook 37B in S90. When the nozzle switch 38B is turned off in S90, it is determined that the supply nozzle 32B has been removed from the nozzle hook 37B (in the case of YES in S90), the process proceeds to S91, and the supply amount Q1 of light oil supplied by the supply nozzle 32A Is read from the memory 39.

  In the next S92, the scheduled supply amount Q2 of urea water corresponding to the light oil supply amount Q1 is calculated based on a predetermined supply ratio (ratio) a (supply amount calculation means). Then, it progresses to S93 and it is checked whether the scheduled supply amount Q2 is zero.

  In S93, if the planned supply amount Q2 is not zero (that is, if light oil has been supplied prior to the supply of urea water (NO in S93)), the process proceeds to S94, and the pump 24B is started. The electromagnetic valve 28B is opened. Subsequently, in S95, the flow rate pulse output from the flow meter 26B is integrated to calculate the measured supply amount QX. In S96, it is checked whether or not the measured supply amount QX has reached the planned supply amount Q2. When it is determined in S93 that the planned supply amount Q2 is zero (in the case of YES in S93), this indicates that light oil is not supplied prior to the supply of urea water. Therefore, the process proceeds to S99 described later without supplying urea water.

  In S96, when the measured supply amount QX has not reached the planned supply amount Q2 (NO in S96), the process proceeds to S97, and it is checked whether or not the supply nozzle 32B has been removed from the slack 37B. In S97, when the nozzle switch 38B is OFF, the supply nozzle 32B is not detached from the slid 37B, so the process returns to S95, and the processes after S95 are repeated.

  Further, when the measured supply amount QX reaches the planned supply amount Q2 in S96 (YES in S96) or when the nozzle switch 38B is on in S97, the supply nozzle 32B is returned to the slipping 37B. (S97: YES), the process proceeds to S98, the pump 24A is stopped, and the solenoid valve 28B is closed.

  As described above, in this embodiment, the scheduled supply amount of urea water is calculated at a predetermined ratio and automatically preset according to the supply amount of light oil, so that the operator needs to input each preset value individually. Therefore, it is possible to simplify the operation time and to prevent erroneous input due to an operation error.

  Although the control processes of FIGS. 7 and 8 have been described as being executed by the control units 34A and 34B, the present invention is not limited to this. For example, the control process may be executed by the overall control unit 34C. In this case, the control units 34A and 34B control the pumps 24A and 24B and the electromagnetic valves 28A and 28B according to instructions from the overall control unit 34C.

  In the above embodiment, the case of supplying light oil and urea water is given as an example. However, the present invention is not limited to this. For example, a combination of gasoline (first fluid) and an additive (second fluid) thereto Of course, the present invention can also be applied when supplying a plurality of other fluids (including liquids and gases (for example, gas such as hydrogen gas and CNG)).

  Moreover, although the case where different liquids are supplied to each of the two types of tanks mounted on the automobile has been described in the above embodiment, the present invention can also be applied to liquid supply to tanks provided in things other than automobiles. Needless to say.

It is a block diagram which shows one Example of the fluid supply apparatus by this invention. It is a side view which shows the structural example of the motor vehicle equipped with the tank for light oil and the tank for urea water. It is a flowchart for demonstrating the control processing which the control apparatus 34 performs. 10 is a flowchart for explaining a control process of a first modification executed by the control device 34; FIG. 5 is a flowchart for illustrating a control process executed subsequent to the control process of FIG. 4. FIG. It is a flowchart for demonstrating the control process performed following the control process of FIG. 10 is a flowchart for explaining a control process of a second modification executed by the control device 34; It is a flowchart for demonstrating the control process performed following the control process of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Liquid supply apparatus 20A 1st liquid supply apparatus 20B 2nd liquid supply apparatus 24A, 24B Pump 26A, 26B Flowmeter 28A, 28B Electromagnetic valve 32A, 32B Supply nozzle 34A, 34B Control part 37A, 37B Nozzle hook 38A, 38B Nozzle switch 40 Setter 40a Input device 40b Deposit / withdrawal machine 42 Light oil tank 44 Urea water tank

Claims (3)

A first fluid supply system for supplying a first fluid;
A second fluid supply system for supplying a second fluid of a different type from the first fluid;
First preset value setting means for setting a scheduled supply amount of the first fluid supplied by the first fluid supply system as a first preset value;
Storage means for storing a ratio of a planned supply amount of the second fluid to a predetermined supply amount of the first fluid;
A planned supply amount of the second fluid corresponding to the first preset value set by the first preset value setting means is calculated based on the ratio stored in the storage means, and the second fluid Second preset value setting means for setting the planned supply amount as a preset value of the second fluid;
When the supply amount of the first fluid reaches the first preset value, the supply of the first fluid by the first fluid supply system is stopped and the supply amount of the second fluid is the second amount. Control means for stopping the supply of the second fluid by the second fluid supply system when the preset value is reached,
A fluid supply apparatus comprising: A first fluid supply system for supplying a first fluid;
A second fluid supply system for supplying a second fluid of a different type from the first fluid;
A planned purchase amount setting means for setting a total purchase amount of the first fluid and a purchase amount of the second fluid as a planned purchase amount;
Storage means for storing a ratio of a planned supply amount of the second fluid to a predetermined supply amount of the first fluid;
Calculating the planned supply amount of the first fluid and the planned supply amount of the second fluid corresponding to the planned purchase amount set by the planned purchase amount setting means based on the ratio stored in the storage means; Preset value setting means for setting the scheduled supply amount of the first fluid and the scheduled supply amount of the second fluid as a preset value of the first fluid and a preset value of the second fluid;
When the supply amount of the first fluid reaches the first preset value, the supply of the first fluid by the first fluid supply system is stopped and the supply amount of the second fluid is the second amount. Control means for stopping the supply of the second fluid by the second fluid supply system when the preset value is reached,
A fluid supply apparatus comprising: A first fluid supply system for supplying a first fluid;
A second fluid supply system for supplying a second fluid of a different type from the first fluid;
Storage means for storing a ratio of a planned supply amount of the second fluid to a predetermined supply amount of the first fluid;
Calculating a predetermined supply amount of the second fluid corresponding to the supply amount of the first fluid supplied by the first fluid supply system based on the ratio stored in the storage means; Preset value setting means for setting the scheduled supply amount as a preset value of the second fluid;
Control means for stopping the supply of the second fluid by the second fluid supply system when the supply amount of the second fluid by the second fluid supply system reaches a preset value of the second fluid; ,
A fluid supply apparatus comprising:

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