JP3252035B2 - Electric vehicle charging display - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vehicle having a battery charging connector provided on an outer surface of a vehicle body, and more particularly to a charge display device for displaying a state of a battery charging operation by a charging device. .

[0002]

2. Description of the Related Art In recent years, electric vehicles have attracted attention as pollution-free transportation means. In such an electric vehicle, a motor as a power source is driven by a battery.
Because of the large power consumption and the large power consumption of various in-vehicle devices, even when a large-capacity battery is mounted, the battery needs to be charged by a charging device provided at an appropriate place when traveling a long distance. Therefore, a power supply port for charging is provided on the outer surface of the body of the electric vehicle.

[0003] The charging operation as described above is performed in a state where the vehicle is stopped. Conventionally, whether or not the charging operation is performed or whether or not the charging is completed is conventionally performed from the charging device side. This is done by looking at a display such as an indicator provided on an instrument panel provided in the vehicle interior (for example, see Japanese Patent Application Laid-Open No. 4-334907).

[0004]

Normally, when charging is performed, the above-mentioned indicator cannot be confirmed because charging is performed in a state where all electric systems are stopped. Since it is difficult to confirm whether or not the charging is completed, the confirmation relies on an indicator or the like on the charging device side. However,
For example, when the indicator on the charging device side is separated from the car, etc., the above confirmation cannot be easily performed. Further, when the indicator is out of order, the charging state cannot be confirmed at all. After the charging operation has been performed for a certain period of time, the electrical system of the automobile is turned on, and the confirmation is made on the display on the instrument panel or the like, which has a problem that the operation is troublesome.

The present invention has been made in view of the above-described problems of the related art, and a main object of the present invention is to provide an electric vehicle capable of easily confirming a state of a battery charging operation outside a vehicle. A charging display device.

[0006]

According to the present invention, there is provided a battery charging connector provided on an outer surface of a vehicle body.
And an openable / closable lid for selectively exposing the connector.
A charging state display device for an electric vehicle having the
Opening / closing detecting means for detecting opening / closing of a lid, and the battery
Charging state detecting means for detecting a charging state of the battery;
Display starts when the detecting means detects the open state of the lid
While the lid is open and the battery is charged.
Means for displaying a state and a state of a charging operation,
Display means provided near the connector on the outer surface of the vehicle body
The present invention is attained by providing a charge state display device for an electric vehicle, which is characterized in that:

[0007]

[Action] In this way, it is possible to confirm easily that state during the work at a position for charging work.
For example, there is no need for the driver to always sit in the driver's seat and check the instrument panel or the like. Further, the display means is an indicator lamp, and the charging state can be displayed in various types and in multiple stages according to the display color and the display state (lighting / flashing, etc.), so that the charging state of the battery is simple.
Can be checked easily and in detail .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a schematic perspective view showing the appearance of an electric vehicle to which the present invention is applied. A power supply unit 3 is provided near the rear wheel 2 of the vehicle body 1 of the vehicle. As shown in FIG. 2, the power supply unit 3 includes a connector 4 provided at a position slightly depressed from the outer surface of the vehicle body 1 and an openable / closable lid 5 provided at a position that selectively covers the connector 4. And an indicator lamp 6 provided near the connector 4 so as not to be hidden even when the lid 5 is closed.

FIG. 3 is a schematic block circuit diagram of the electric system of the electric vehicle. A motor 11 as a power source of the electric vehicle is connected to a power drive unit 12, and is connected to a battery 15 via a connection device 14 together with a high-voltage load 13. The connection device 14 is also connected to a battery charger 16 provided with the connector 4, and selectively connects the battery charger 16 to the battery 1.
5. Connection device 14 described above
Is controlled by the management ECU 17. The management ECU 17 is connected to a voltmeter 18, an ammeter 19, and a temperature sensor 20 for detecting a load or the like of the battery 15, and appropriately controls the connection device 14 and the like according to a load state and the like.

On the other hand, the management ECU 17 is connected to the open / close switch 21 for detecting the open / close state of the lid 5 of the power supply unit 3 and the indicator lamp 6.
The indicator lamp 6 is selectively lit or blinked or its display color is changed according to the open / close state of the lid 5 , the charging operation state, and the charging state.

The procedure of the charging operation in this embodiment will be described below. First, charge the electric vehicle
Opens the lid 5 of the power supply unit and connects the power supply device. Do
The lid 5 is open or the power supply
Indicator light 6 is red to indicate that
Flashes quickly. Next, when charging actually starts, the indicator
The data lamp 6 lights red. Then, when the charging is completed at last, the indicator lamp 6 turns green.

Therefore, if charging is not successful due to a failure of the charging device or an abnormal connection state, etc., the red lamp remains blinking and it is confirmed that the state of the charging operation is abnormal. be able to. Further, when the lid 5 is open with the power supply device disconnected from the connector 4, the red lamp blinks, so that even if the lid is forgotten to be closed, this can be easily confirmed. Further, when the charging is completed, the green lamp is turned on, so that there is no need to maintain the charged state for an unnecessarily long time. In addition, for example, when the indicator lamp 6 is compared with the indicator on the charging device side, the state of the charging operation can be confirmed more reliably.

FIG. 4 shows a modification of the above embodiment.
2 and a detailed description of the same parts as in FIG. 2 is omitted. In this embodiment, the indicator lamp 26 is hidden in a state where the lid 25 is closed, and there is no fear that dirt due to dust or the like during traveling adheres to the indicator lamp and it becomes difficult to confirm the display. The aesthetics during driving are improved. Other structures are the same as those of the above-described embodiment.

In the above embodiment, charging is performed by blinking and lighting the indicator lamp and selecting between the red lamp and the green lamp.
Although the operation status and charging status are displayed, information such as how much charging has been completed may be displayed by increasing the display color or devising the blinking interval. A display capable of displaying numbers and the like may be provided to display more detailed information.

[0016]

As is apparent from the above description, according to the charge display device for an electric vehicle according to the present invention, it is possible to provide
Display means for indicating the state of the charging operation near the power supply unit provided on the surface is also provided on the outer surface of the vehicle body ,
The state of the charging operation can be checked outside the vehicle, and it is not necessary to check that the charging has been completed on the charging device side or on the instrument panel in the vehicle interior. . Also displays the lid open status.
Therefore, it is possible to easily confirm that the user has forgotten to close the lid. Furthermore, the display means is an indicator lamp, and the charging state can be displayed in various types and in multiple stages according to the display color and the display state, so that the charging state can be easily and in detail confirmed with a simple structure.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing the appearance of an electric vehicle to which the present invention is applied.

FIG. 2 is an enlarged perspective view showing only a power supply unit of FIG. 1;

FIG. 3 is a circuit block diagram showing a configuration of an electric system in the electric vehicle of FIG. 1;

FIG. 4 is a view similar to FIG. 2 showing a modified embodiment of the embodiment shown in FIGS.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Rear wheel 3 Power supply part 4 Connector 5 lid 6 Indicator lamp 11 Motor 12 Power drive unit 13 High voltage system load 14 Connection device 15 Battery 16 Battery charger 17 Management ECU 18 Voltmeter 19 Ammeter 20 Temperature sensor 21 Opening / closing switch 25 Lid 26 Indicator light

Claims (3)

(57) [Claims] 1. A battery charging connector provided on an outer surface of a vehicle body and an openable / closable connector for selectively exposing the connector.
A charge state display device for an electric vehicle, comprising: a lid; an open / close detection unit configured to detect opening / closing of the lid; and a charge state detection unit configured to detect a charge state of the battery.
If, when the opening and closing detecting means detects the open state of the lid table
Start reading, the lid is opened and the battery is
Means for displaying the charging state of the battery and the state of the charging operation.
The display means is located near the connector on the outer surface of the vehicle body.
Charging state display device for an electric vehicle, characterized in that provided. 2. The display device according to claim 1, wherein the display device comprises an indicator lamp for displaying a change in a charging state and an open state of the lid according to a change in a light emitting state and / or a light emitting color .
Charging display apparatus for an electric vehicle according to claim 1, wherein it is in the earthenware pots. 3. The method according to claim 2, wherein the display means is configured to close the lid.
It is provided in a position where it can be hidden from the outside in the closed state
The electric vehicle according to claim 1 or 2,
Electronic display device.