JP3012787B2 - Liquid supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid supply device in which a liquid mounted on an in-vehicle tank is supplied through a liquid supply line by a pump driven by a vehicle engine.

[0002]

2. Description of the Related Art Conventionally, in a liquid supply device in which a liquid mounted on an in-vehicle tank is supplied through a liquid supply line by a pump using a vehicle engine as a drive source, Japanese Patent Laid-Open No. 6-199 is disclosed.
As in 397, when the engine and the pump are connected, the first switch means for supplying power to the control means and the display by being turned on by pressure detection means provided in the pipeline has been proposed, The purpose of this proposal is to prevent an operation error in which the nozzle is opened and the refueling is started without turning on the power of the control means and the display, and the refueling amount cannot be confirmed on the display. is there.

[0003] In addition, by providing a re-display switch,
Even when the pump is not driven, power is supplied to the control means and the display so that the last liquid supply amount can be confirmed.

[0004]

However, in the above proposal, a redisplay switch is provided so that the previous refueling amount can be confirmed without driving the pump.
In addition to the data to be confirmed by the display, there is a case where a check operation of management data such as a summation of a tank remaining amount and a liquid supply amount is performed. The means and the indicator must be supplied with power, which places a burden on the pump and the supply line.

Further, in the above proposal, power can be supplied to the control means and the display by the first switch or the redisplay switch, but it is determined which switch input each switch input is. In order to judge, it is necessary to provide the input port of the control means separately.
When trying to connect the redisplay switch to an existing liquid supply device to which only the switch is already connected, it is good if there is an extra input port, but there is no input port for connecting other input means Must add an input port to connect a new redisplay switch,
To that end, not only must a new board be manufactured, but in the worst case, it may be necessary to change to a CPU with higher performance.

Furthermore, the proposed redisplay switch must be kept pressed by hand in order to display the previous refueling amount. When the refueling amount is noted, the refueling amount is stored once during the display. Otherwise, if the data cannot be stored, the operation of pressing the redisplay switch and the operation of writing the refueling amount must be alternately repeated.

An object of the present invention is to provide a liquid supply device which can solve the above problems.

[0008]

According to the present invention, there is provided a liquid supply apparatus for supplying a liquid mounted on a vehicle-mounted tank through a liquid supply pipe by using a pump driven by a vehicle engine. , A display that displays liquid supply data and management data such as the sum of tank remaining amount and liquid supply amount, a management key that outputs a desired management data display command signal, and a manual output that outputs a power-on signal only when pressed A switch, an automatic switch that detects driving of the pump and continuously outputs a power-on signal during driving of the pump, and an input port to which a power-on signal from the manual and automatic switches is commonly input, and the one of the switches is provided. When a power-on signal is input from the controller, the on-board battery is connected to the power-supplied unit of the liquid supply device. When the input time of the input power-on signal is less than a predetermined time, the management key It is an gist thereof is to provide a liquid supply apparatus provided with a control means for displaying the management data to the display device to input management data display command signal al. Also, in the liquid supply device, if the command signal is not input again until a predetermined time has elapsed after the input of the management data display command signal, the power supply of the vehicle-mounted battery and the liquid supply device is automatically performed. It is an object of the present invention to provide a liquid supply device provided with a control unit for disconnecting a connection with a unit. Further, in the liquid supply device, when a power-on signal is input by an automatic switch and the power-on signal is not input again until a predetermined time elapses after the input of the signal is released, the vehicle is automatically mounted on the vehicle. It is an object of the present invention to provide a liquid supply device including a control unit for disconnecting a battery from a power-supplied portion of the liquid supply device. Also,
In the above-mentioned liquid supply device, there is provided a liquid supply device provided with control means for releasing connection between a vehicle-mounted battery and a power-supplied portion of the liquid supply device when input and release of a power-on signal are alternately repeated twice. It is the gist.

[0009]

According to the present invention, it is possible to check the management data such as the total of the remaining amount of the tank and the amount of the supplied liquid without driving the pump, and once the power is supplied by the manual switch, the operation can be performed for a predetermined time. As long as there is an input from the management key, the power is continuously supplied and various management data is continuously displayed on the display, so that it is not necessary to operate the manual switch to supply power to the display each time.

After the refueling is completed, P.P. T. After disconnecting O and after confirming the management data with the management key, the connection between the vehicle-mounted battery and the power-supplied unit is automatically released if left unattended.

Further, P.S. T. If the connection and disconnection of O or the pressing and release of the manual switch are alternately repeated twice, the connection between the vehicle-mounted battery and the power-supplied unit can be forcibly released.

Further, the control means for connecting two kinds of switches required for performing the above control can have one input port.

[0013]

An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is an explanatory view showing the overall structure of a liquid supply device according to one embodiment of the present invention. Reference numeral 1 denotes an on-vehicle tank for storing liquid to be supplied, and a pump 2 for supplying liquid.
Liquid is supplied from a liquid supply nozzle 4 with an on-off valve via a liquid supply pipe 3.

In the middle of the liquid supply line 3, the valve is throttled stepwise at the time of preset liquid supply or the like, and an electric valve 5 composed of a motor and a ball valve for performing appropriate liquid supply, And outputs a pulse signal through a flow meter 6.

Further, 7 is the P.S. T. O (power take-out device)
At the time of liquid supply, the output of the engine 8 of the vehicle is transmitted to the pump 2. T. In O7, P.
T. During O7 connection, there is provided an automatic switch 9 which continuously outputs the state as a power-on signal (this automatic switch 9 detects a displacement of a PTO lever,
An encoder that detects the rotation of the pump 2 or a pressure switch that detects the pressure in the liquid supply line 3 may be used.

Reference numeral 10 denotes an operation unit, a display 11 for displaying various data such as liquid supply data and management data, a liquid supply mode key for instructing preset liquid supply and integer value liquid supply, and management data. And a manual switch 13 (for example, a switch that is always kept off by an elastic body) for outputting a power-on signal only when pressed, and the like. Have been.

Reference numeral 14 denotes a battery provided in the vehicle, which is connected to the power-supplied unit 15 via a relay switch 16 that receives a power-on signal and supplies power to the power-supplied unit 15.

Reference numeral 17 denotes a control means comprising a conventionally known microcomputer or the like. Based on signals from the flow meter 6 and the keyboard 12, various data are displayed on the display 11, the motor of the motor-operated valve 5 is operated, and The opening degree of the valve 5 is adjusted, and various liquid supply modes are executed. Also,
Upon receiving a power-on signal from the manual switch 13 or the automatic switch 9, an on-signal is output to the relay switch 16 to connect the battery 14 and the power-supplied unit 15. Further, both the manual switch 13 and the automatic switch 9 are connected to a common input port of the control means 17.

Reference numeral 18 denotes a battery connected to the control means 17, which is a backup power supply for the control means 17.

Next, the use and operation of the present invention will be described with reference to FIG.

First, the case of executing the liquid supply operation will be described.

The engine 8 is set in an idling state at a liquid supply location. T. Connect O7 and rotate pump 2.

Then, P. T. The automatic switch 9 provided at O7 is closed, a power-on signal is input to the control means 17 (step 1), and the control means 17 which has received the power-on signal outputs an ON signal to the relay switch 16 to output the relay signal. 16 on (step 2), battery 1
4 and the power-supplied unit 15 are connected so that the liquid can be supplied at any time.

At this time, a timer built in the control means 17 is set at the same time (step 3), and the power-on signal is input to the control means 17 continuously for a predetermined time t1 (about 10 seconds) or more. The control means 17 determines whether it is a power-on signal from the manual switch 13 or a power-on signal from the automatic switch 9 by checking whether or not there is (Steps 4 and 5).

In this case, T. Since O7 is an input from the automatic switch 9 in the connected state, the power-on signal is continuously input for a predetermined time t1 or more, and the state in which the liquid can be supplied continues to be maintained (step 6). Then, a desired liquid supply mode is set and input by a liquid supply mode key in the keyboard 12, and liquid supply is started.

At the time when the liquid supply is completed, the P.V. T.
If the connection of O7 is disconnected and the ON state of the automatic switch 9 is released (step 6), the timer built in the control means 17 is cleared once (step 7), and the time t2 is set (step 8). If a new power-on signal is not input to the control unit 17 (steps 9 and 10), it is left for t2 hours (about 3 minutes).
A signal for turning off the relay switch 16 is output from the control means 17, and the relay switch 16 is turned off to disconnect the battery 14 from the power-supplied unit 15 (step 1).
At the same time as 1), the timer is cleared (step 12),
Return to the initial standby state (step 1).

When it is desired to turn off the power immediately after the supply of the liquid has been completed, the P.E. T. Disconnect O7 connection,
After releasing the ON state of the automatic switch 9 (step 6), before the time t2 elapses, it is connected and disconnected again, that is, the automatic switch 9 in the ON state is once turned off,
Turn it on again (step 9), turn it off (step 1
3) The signal for turning off the relay switch 16 is the control means 1
7, the relay switch 16 is turned off, the connection between the battery 14 and the power-supplied unit 15 is released (step 11), and the timer is cleared (step 1).
2) Return to the initial standby state (step 1).

However, when the power-on signal of the automatic switch 9 is input to the control means 17 again, the liquid supply can be restarted (step 13). T. If O7 is disconnected, the power will be turned off immediately.

Next, a case where the operation of confirming management data is executed will be described.

The operation of confirming the management data is the operation of confirming the remaining amount of the tank, confirming the total of the liquid supply, etc.
P. T. O7 does not need to be connected, and if the checking operation is performed in a short time, there is no need to worry about running out of the battery.

First, the manual switch 13 on the operation unit 10
push. Then, a power-on signal is input to the control means 17 (step 1), and the control means 17 having received the signal turns on
A power-on signal is output to the relay switch 16 to turn on the relay switch 16 (step 2), and the battery 14 and the power-supplied unit 15 are connected.

At this time, a timer built in the control means 17 is set at the same time (step 3), and the power-on signal is input to the control means 17 continuously for a predetermined time t1 (about 10 seconds) or more. It is determined whether the signal is a power-on signal from the manual switch 13 or a power-on signal from the automatic switch 9 by checking whether the power is on (steps 4 and 5). Since the output is performed, the input of the power-on signal to the control means 17 is interrupted before the time t1 elapses.

Then, the timer counting t1 is cleared (step 14), a new timer is set (step 15), and counting of time t2 is started (step 17).

When the management data to be confirmed is input by operating the management key before the time t2 elapses (step 16), a display signal is output from the control means 17 having received the signal to the display 11, and a desired signal is output. Management data is Display 1
1 is displayed (step 19). After that, the timer is cleared (step 14) and set to count the time t2 again (step 15). If no operation is performed, the timer is left as it is (step 17). ), A signal for turning off the relay switch 16 is output from the control means 17, the relay switch 16 is turned off, the connection between the battery 14 and the power-supplied unit 15 is released (step 11), and the timer is cleared (step 12). ), Return to the initial standby state (step 1).

If it is desired to turn off the power immediately after the completion of the management data confirmation operation, if the manual switch is pressed again before the time t2 has elapsed, the control means 1
7, a power-on signal is input (step 18). However, since the power-on signal is immediately interrupted due to the power-on signal from the manual switch (step 13), a signal to turn off the relay switch 16 at that time is issued. Output from the control means 17, the relay switch 16 is turned off, and the connection between the battery 14 and the power-supplied unit 15 is released (step 1).
At the same time as 1), the timer is cleared (step 12),
It is possible to return to the initial standby state (step 1).

To summarize the above, T. O7 can be connected or the manual switch 13 can be pressed to turn on the power. T. If O7 is separated and left, or if the manual key is pressed and then the management key is operated or not, it is left as it is,
The power is automatically turned off after a lapse of a predetermined time. Also, in any case, if it is desired to forcibly turn off the power once it has been turned on, the power can be turned off instantly by repeating the input and release of the power-on signal twice.

[0038]

Since the present invention is constructed as described above, it is possible to check the management data such as the total of the remaining amount of the tank and the amount of the supplied liquid without driving the pump. It is not necessary to apply an extra pressure load to the liquid supply line, and it is possible to improve the durability of each part. Once power is supplied by the manual switch, as long as there is an input from the management key within a predetermined time Since power is continuously supplied and various management data is continuously displayed on the display, there is no need to operate the manual switch each time to supply power to the display. Can take notes.

After the refueling is completed, P.P. T. After disconnecting O or after confirming the management data with the management key, if left unattended, the connection between the vehicle-mounted battery and the power-supplied unit is automatically released, and wasteful power due to forgetting to turn off the battery etc. Consumption can be prevented, and the life of the vehicle battery can be extended.

Further, P.S. T. By connecting and disconnecting O or alternately pressing and releasing the manual switch twice,
Since the connection between the vehicle-mounted battery and the power-supplied unit can be forcibly released, more aggressive power saving can be performed in accordance with the user's desire.

Further, the control means for connecting the two types of switches required for performing the above-described control can have one input port, and can be implemented without newly providing an input port.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a liquid supply device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of the apparatus.

[Explanation of symbols]

 1 In-vehicle tank 2 Pump 3 Liquid supply line 7 T. O 8 Engine 9 Automatic switch 11 Indicator 12 Keyboard (liquid supply mode key and management key) 13 Manual switch 14 In-vehicle battery 15 Powered part 17 Control means

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B67D 5/00-5/22

Claims (1)

(57) [Claims] 1. A liquid supply device for supplying a liquid mounted on an in-vehicle tank through a liquid supply line by a pump using a vehicle engine as a drive source; liquid supply data, totaling of a tank remaining amount and a liquid supply amount. A management key for outputting a desired management data display command signal, and a manual switch for outputting a power-on signal only when pressed; a power-on signal for detecting pump operation and for driving the pump And an input port to which power-on signals from the manual and automatic switches are input in common, and when a power-on signal is input from one of the switches, a vehicle-mounted battery and a liquid supply device are provided. When the input time of the input power-on signal is less than a predetermined time, a management data display command signal from the management key is input to the display unit. A liquid supply device, comprising: control means for displaying management data.