JPH04285406A - Charging method of electric automobile - Google Patents

Abstract

PURPOSE:To solve problems of conventional electric automobile which must return to a charging station after traveling a predetermined distance and thereby has application only for short distance traveling and which can not be charged in the way of traveling even if a large number of charging stations are installed and must interrupt traveling for a long time in order to be charged. CONSTITUTION:Solar cells 2 connected with a battery 10 and an identifying information generator 3 are mounted on the outer face of an electric automobile 1. If a decision is made that the automobile 1 can be charged based on information provided from the identifying information generator 3 when the electric automobile stops at an intersection because of red signal, a charging light emitter 6 emits a light beam with high illuminance to the solar cells 2 mounted on the outer face of the automobile thus charging the battery 10. According to the invention, the automobile 1 is not required to drop at a charging station.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention does not use an engine,
The present invention relates to a charging method for an electric vehicle in which a drive system is electrically operated using a battery.

0002

2. Description of the Related Art Generally, electric vehicles have a limited battery capacity, so they must be charged over a relatively short distance. For this reason, conventional electric vehicles have fixed charging stations and are used as a means of transportation on campus or in local areas. At this charging base, batteries were charged for long periods of time using small currents using charging cables.

0003

[Problems to be Solved by the Invention] However, conventional electric vehicles cannot be used as general vehicles because of their short range and the limitations of charging the battery.
It had limited uses. Furthermore, even if a plurality of charging stations were provided, there was a problem in that it was not possible to charge the vehicle while the vehicle was running, and it was necessary to interrupt the vehicle for long periods of time to charge the vehicle.

0004

[Means for Solving the Problems] The present invention provides a charging method for an electric vehicle that is equipped with a large capacity battery and uses the output of this battery as a power source for a drive system. A solar cell and an identification information generating section are provided, and after the information of the identification information generating section is identified, the solar cell is irradiated with a light beam of high illuminance.

[0005] Furthermore, in a charging method for an electric vehicle that is equipped with a large capacity battery and uses the output of the battery as a power source for the drive system, a solar cell connected to the battery and a position information generating section are provided on the outside of the electric vehicle. When the position information of the position information generator is identified, the irradiation direction is adjusted based on the position information, and then the solar cell is irradiated with a light beam of high illuminance.

[0006]

[Operation] When an electric car stops at an intersection, etc., a device installed here identifies the car's identification information and irradiates the solar cells with a beam of high intensity to generate electricity inside the car and charge it. I do. There is no need to stop for charging. Additionally, the direction of light irradiation is controlled based on position information from the vehicle.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory diagram showing an embodiment of the electric vehicle charging method according to the present invention, and FIG. 2 is a block diagram of essential parts of the embodiment shown in FIG. In these drawings, 1 is an electric vehicle equipped with a battery 10, and a solar cell 2 connected to the battery 10 is mounted on the roof of the electric vehicle 1.
and a code plate 3 on which code information for identification is written. 4 is a light projector that illuminates the code plate 3; 5 is a light receiver that receives reflected light from the code plate 3 with a lens system (not shown) and reads the code information; 6 is a light receiver that emits a highly illuminating and directional charging beam; 7 is a control device for suspending and controlling the projector 4, light receiver 5, and charging beam emitter 6; 8 is a control device for supporting the control device 7 from the sidewalk 9 on the roadway; The charging device 11 is constituted by these pillars.

Note that the control device 7, as shown in FIG.
It consists of a code analyzer 71 that analyzes the output of the light receiver 5, and a switch 72 that turns on the charging beam emitter 6 upon receiving the output of the code analyzer 71. A plurality of charging devices 11 are provided at predetermined intervals in a predetermined section from before a stop line on a roadway having a traffic light.

Next, the operation of the above embodiment will be explained. After confirming that the traffic light is red, the electric vehicle 1 stops below the control device 7. The light from the floodlight 4, which is always on, is transmitted through the code plate 3.
The light is reflected from the light receiver 5 and received by the code analyzer 71.
It is analyzed by When the code analyzer 71 analyzes that the code information is a specific code, the code analyzer 71 gives an output to the switch 72, and the switch 72 is turned on to supply power to the charging beam emitter 6.

As a result, the charging beam emitter 6 starts emitting light, and a directional, high-intensity charging beam is directed toward the electric vehicle 1.
The solar cell 2 is irradiated. The solar cell 2 photoelectrically converts the high energy received during the stop period, and quickly charges the battery 10. Thereafter, when the electric vehicle 1 starts due to the green signal, the code analyzer 71 recognizes this and stops the power supply to the charging beam emitter 6.

In the above embodiment, if the predetermined section in which the charging device 11 is installed is located at a predetermined location along the main road or in a local area, long-distance driving and continuous driving can be achieved without requiring special charging time. Can run.

FIG. 3 is an explanatory diagram showing another embodiment of the electric vehicle charging method according to the present invention, and FIG. 4 is a block diagram of its main parts, in which the same parts as in FIGS. 1 and 2 are given the same symbols. , the explanation thereof will be omitted. In the figure, 20 is an electric vehicle 1
a transmitting antenna for transmitting positional radio wave information installed at 2;
1 is a receiving antenna that receives positional radio wave information from the transmitting antenna 20; 22 is a mechanism that allows the control device 7 to swing freely in three-dimensional directions with respect to the support 8; 23 is a receiving antenna 21
This is a calculation section that calculates and outputs the swing angle of the mechanism section 22 based on the positional radio wave information received by.

In the above embodiment, when the electric vehicle 1 stops under the control device 7, the receiving antenna 21 receives the position radio wave information transmitted from the transmitting antenna 20, and the calculating section 23 uses this to control the vibration of the control section 7. The moving angle is calculated and the mechanism section 22 is driven. The projector 4, receiver 5, and charging beam emitter 6 fixed to the control unit 7 are directed toward the roof of the electric vehicle 1 according to the swinging of the control unit 7, and read the code information written on the code plate 3. The solar cell 2 is irradiated with the receiving light beam. Note that the code plate 3, light projector 4, and light receiver 5 may be omitted.

In this embodiment, by using the position radio wave information, the electric vehicle 1 only has to stop near the charging device 11 without adjusting its stopping position. Further, there is no need to provide a plurality of charging devices 11 for one signal device.

[0015] In each of the above embodiments, the solar cell 2 and the code plate 3 are provided on the roof of the electric vehicle 1, but the present invention is not limited to this, and they may be provided on the side, for example. Furthermore, it goes without saying that the solar cell used here is not limited to one that reacts only to general visible light, but may also react to other light rays included in sunlight, such as ultraviolet rays and infrared rays.

[0016]

[Effects of the Invention] As explained above, the method for charging an electric vehicle according to the present invention is such that rapid charging is performed using a charging beam and a solar cell during a stop period during driving, so that it can be used for long-distance driving. It can also run continuously, expanding its use to general automobiles, etc. Also, extra charging time and work can be eliminated.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an embodiment of an electric vehicle charging method according to the present invention.

FIG. 2 is a block diagram of main parts in FIG. 1;

FIG. 3 is an explanatory diagram showing another embodiment of the electric vehicle charging method according to the present invention.

FIG. 4 is a block diagram of main parts in FIG. 3;

[Explanation of symbols]

1 Electric car 2. Solar cells 3 Code board 4 Floodlight 5 Photo receiver 6 Charging beam emitter

Claims (2)

[Claims] Claim 1: A method for charging an electric vehicle equipped with a large-capacity battery and using the output of the battery as a power source for a drive system, wherein a solar cell connected to the battery and an identification information generating section are provided on the outer surface of the electric vehicle. A method for charging an electric vehicle, comprising: irradiating the solar cell with a beam of high illuminance after identifying the information of the identification information generating section. Claim 2: A method for charging an electric vehicle equipped with a large-capacity battery and using the output of the battery as a power source for a drive system, wherein a solar cell connected to the battery and a position information generating unit are provided on the outer surface of the electric vehicle. A method for charging an electric vehicle, comprising: adjusting the irradiation direction based on the position information when the position information of the position information generating section is identified; and then irradiating the solar cell with a beam of high illuminance.