JP7086738B2 - Electric vehicle deficiency relief system - Google Patents

Description

The present invention relates to a power deficiency relief system for an electric vehicle.

Conventionally, in facilities such as hotels and restaurants, a parking type called valet parking has been known, and in this type of valet parking, the vehicle that has been driven by oneself is left to a specialized porter for the vehicle. We leave parking to us, and when we go out or go home, we ask the porter to ride the vehicle to the entrance, but it is being considered to automate the valet parking for the spread of self-driving vehicles in the future. ing.

That is, the occupants get off from the autonomous driving vehicle at a predetermined boarding / alighting position set near the entrance / exit of the parking facility, and the autonomous driving vehicle is automatically driven to the parking space by the control system wirelessly connected to the autonomous driving vehicle. It is conceivable to store the car in the car or to automatically drive the car from the parking space to the boarding / alighting position to leave the car.

In addition, as the prior art document information regarding the parking system in which the vehicle is automatically moved in and out of the parking space without the involvement of the occupant, for example, the following patent document 1 by the same applicant as the present invention. Etc. already exist.

Japanese Unexamined Patent Publication No. 2017-214800

However, in recent years, electric vehicles have been attracting attention as zero-emission vehicles that do not emit any exhaust gas, and the shift from gasoline-powered vehicles to electric vehicles is being promoted as a national policy, mainly in Europe. In the future, it is expected that self-driving vehicles will be realized by electric vehicles and will become widespread, but in this type of electric vehicle, the electricity of the battery is exhausted during driving and the power is insufficient. There is a concern that if there is a power shortage during automatic driving in a parking facility that automates valley parking as described above, there is a problem that unnecessary congestion will occur in the parking facility, and it is completely unmanned from the viewpoint of safety. There was also the problem that it was difficult to provide prompt relief for the power shortage that occurred in the parking facility that we wanted to improve.

The present invention has been made in view of the above circumstances, and an object of the present invention is to enable prompt relief when an electric vehicle becomes out of power while traveling.

The present invention provides a non-contact power receiver on the bottom surface to support non-contact power supply from a non-contact power transmitter on the ground side, and non-contact with a ceiling surface having a height within the minimum ground height of the electric vehicle. It is equipped with a self-propelled robot equipped with a transmitter and a control system that guides the self-propelled robot by wireless connection to automatically drive the electric vehicle. While the control system is configured to guide a running robot to supply non-contact power from the emergency power source of the self-propelled robot, the control system also guides an electric vehicle by wireless connection to automatically run the electric vehicle. It is possible to guide an electric vehicle in a power-deficient state to a predetermined retracted position while performing non-contact power supply by a self-propelled robot, and during the guidance, the self-propelled robot is made to follow the self-propelled electric vehicle to a non-contact power supply state. In addition, the self-propelled robot that has reached the retracted position together with the electric vehicle is connected to the ground-side power supply connection port by being provided with a ground-side power supply connection port at the retracted position. It relates to an electric vehicle deficiency relief system, which is configured to be capable of non-contact power supply from a ground-side power source .

Further, in the present invention, the control system is wirelessly notified that the electric vehicle is out of power, and the control system that receives the notification guides the self-propelled robot to the stop position of the electric vehicle. It is preferable that it is.

Further, the present invention may be applied to a parking facility in which the electric vehicle is delivered at the boarding / alighting position and the electric vehicle is automatically driven unmanned by a control system from the boarding / alighting position to the parking space.

According to the above-mentioned electric vehicle power shortage relief system of the present invention, when the electric vehicle runs out of electricity in the battery and becomes in a power shortage state, the self-propelled robot is immediately sent to supply non-contact power to the electric vehicle. Since the electric vehicle can be moved to a predetermined retracted position or the like, it is possible to quickly relieve the electric vehicle that has been stranded due to the lack of electricity, and the electric vehicle can be delivered especially at the boarding / alighting position. In addition, when the electric vehicle is applied to a parking facility in which the electric vehicle is automatically driven unmanned by a control system from the boarding / alighting position to the parking space, unnecessary congestion is not caused in the parking facility. It is possible to achieve an excellent effect that the operation can be smoothly completed and the electric vehicle can be rescued by a self-propelled robot to maintain good complete unmanned operation in the parking facility.

It is a schematic diagram which shows one Example of this invention. It is a perspective view which shows the appearance image of the self-propelled robot of FIG. It is a schematic diagram which shows the state which guided the self-propelled robot of FIG. 1 to just below the electric vehicle in the electric shortage state. It is a schematic diagram which shows the state which guided the electric vehicle of FIG. 3 to the evacuation position together with a self-propelled robot. It is a schematic diagram which shows the example which performs the non-contact power supply by the non-contact power transmission at the retracted position instead of the self-propelled robot of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 illustrates a case where the present invention is applied to a parking facility in which valet parking is automated. In the parking facility shown here, the electric vehicle 1 is delivered at the boarding / alighting position and the boarding / alighting position is reached. From to the parking space, the electric vehicle 1 is guided by a wireless connection using a 3G line, an Internet line, or the like, and is automatically driven unmanned by the control system 2.

Further, a non-contact power receiver 3 is provided on the bottom surface of the electric vehicle 1 so as to be able to handle non-contact power supply from a non-contact power transmitter (not shown in FIG. 1) on the ground side. More specifically, a coil and a capacitor are embedded in the non-contact power receiver 3 on the electric vehicle 1 side and the non-contact power transmitter on the ground side, respectively, and a magnetic field for transmitting electric power by resonating each resonator with a magnetic field. Resonance type non-contact power supply is performed. However, this is only an example of non-contact power supply, and power is transmitted by using the induced magnetic flux generated between the non-contact power receiver 3 on the electric vehicle 1 side and the non-contact power transmission on the ground side. An electromagnetic induction method may be adopted.

Further, a self-propelled robot 5 (see FIG. 2) equipped with a non-contact transmitter 4 on a ceiling surface having a height within the minimum ground height of the electric vehicle 1 is deployed at a predetermined standby place of such a parking facility. The self-propelled robot 5 is guided by the control system 2 by a wireless connection to automatically travel, and the control system 2 is such that the electric vehicle 1 falls into an electric power shortage state. The self-propelled robot 5 is guided to directly under 1 to supply non-contact power supply from the emergency power supply of the self-propelled robot 5 (see FIG. 3), and the electric vehicle is maintained in the non-contact power supply state. 1 is guided to a predetermined retracted position E (see FIG. 4).

Here, the retracted position E is provided with a connection port 6a for the ground-side power supply 6, and the self-propelled robot 5 that has reached the retracted position E together with the electric vehicle 1 is controlled by the control system 2 to the ground. It is connected to the connection port 6a of the side power supply 6 via a connector mechanism that can move forward and backward, and after being connected to the connection port 6a, the emergency power supply of the self-propelled robot 5 is connected to the ground side. It is switched to the power source 6 so that the non-contact power supply to the electric vehicle 1 is continued.

At this time, the electric vehicle 1 wirelessly notifies the control system 2 of the fact that the electric vehicle has fallen into a power shortage state together with the vehicle ID, and the control system 2 receiving the notification immediately parks the equipment. Since the stop position is detected using various sensing devices in the vehicle and the guidance path R ₁ (see FIG. 3) to the detected stop position is obtained by calculation, the self-propelled vehicle runs along this guidance path R ₁ . The robot 5 is automatically driven to be guided directly under the electric vehicle 1 in the power shortage state.

It should be noted that it is an easily feasible matter to automatically drive the self-driving robot 5 along the guidance path _R1 by wireless connection from the control system 2, and then various sensing devices in the parking facility are used. Then, when the vehicle deviates from the guidance path _R1 , a correction may be added to the guidance command for automatic driving. For example, the self-propelled robot 5 is guided by using an image processing device 7 or a 3D rider (not shown). It is possible to detect the deviation from the route _R1 .

Then, when the self-propelled robot 5 is guided directly under the electric vehicle 1 in the power-deficient state, the non-contact power receiver 3 on the bottom surface of the electric vehicle 1 and the non-contact power transmitter 4 on the ceiling surface of the self-propelled robot 5 are connected. The non-contact power supply is started from the emergency power supply of the self-propelled robot 5 so as to face each other, and further, the electric vehicle 1 is guided to a predetermined retracted position E by the control system 2 while performing the non-contact power supply in this way. Further, during the guidance, the self-propelled robot 5 is made to follow the electric vehicle 1 to maintain the non-contact power feeding state.

In guiding the electric vehicle 1 together with the self-propelled robot 5 from a stop position to a predetermined retracted position E, the electric vehicle 1 is guided from the stopped position to a predetermined retracted position, as in the case of guiding the self-propelled robot 5 described above. The guidance path R ₂ (see FIG. 4) to the position E is obtained by calculation, and the electric vehicle 1 and the self-propelled robot 5 may be automatically driven and guided along the guidance path R ₂ .

Further, here, a case where the self-propelled robot 5 is connected to the connection port 6a of the ground-side power supply 6 to continue the non-contact power supply to the electric vehicle 1 is illustrated, but as shown in FIG. 5, for example, as a reference example . In addition to the self-propelled robot 5, a non-contact transmitter 4'is fixedly installed on the floor surface of the retracted position E, and the non-contact transmitter 4'is replaced with the self-propelled robot 5 at the retracted position E. It is also possible to perform non-contact power supply.

Therefore, according to the above embodiment, when the electric vehicle 1 runs out of electricity in the battery while traveling and becomes in a power shortage state, the self-propelled robot 5 is immediately sent to supply non-contact power to the electric vehicle 1 and the electric vehicle 1 is supplied with electricity. Since the electric vehicle 1 can be moved to the predetermined retracted position E, it is possible to quickly relieve the electric vehicle 1 that has been stranded due to the lack of electricity, and in particular, the valley parking as in the present embodiment is automated. In the event of an electric shortage during automatic driving in a parking facility, it is possible to ensure smooth operation without causing unnecessary congestion in the parking facility, and a self-propelled robot. It is also possible to maintain good complete unmanned operation in the parking facility by substituting the relief of the electric vehicle 1 by 5.

The electric vehicle shortage relief system of the present invention is not limited to the above-mentioned embodiment, and may be applied to facilities other than parking facilities that automate valet parking. In addition, the present invention Of course, various changes can be made within the range that does not deviate from the gist.

1 Electric vehicle 2 Control system 3 Non-contact power receiver 4 Non-contact transmitter 4'Non-contact transmitter 5 Self-propelled robot 6 Ground side power supply 6a Connection port 7 Image processing device E Evacuation position R ₁ Guided route R ₂ Guided route

Claims (3)

An electric vehicle equipped with a non-contact power receiver on the bottom to support non-contact power supply from the non-contact power transmitter on the ground side, and a non-contact power transmitter mounted on the ceiling surface at a height that fits within the minimum ground height of the electric vehicle. It is equipped with a self-propelled robot and a control system that guides the self-propelled robot by wireless connection to automatically run, and guides the self-propelled robot directly under the electric vehicle when the electric vehicle becomes out of power. While the control system is configured to supply non-contact power from the emergency power source of the self-propelled robot, the control system can also guide an electric vehicle by wireless connection to automatically drive it. , To guide the electric vehicle in the power shortage state to a predetermined retracted position while performing non-contact power supply by the self-propelled robot, and to make the self-propelled robot follow the self-propelled robot during the guidance to maintain the non-contact power supply state. Moreover, the self-propelled robot that has reached the retracted position together with the electric vehicle is connected to the connection port of the ground-side power supply and is connected to the ground-side power supply from the ground-side power supply. An electric vehicle deficiency relief system characterized by being configured to provide non-contact power supply . The feature is that the control system is wirelessly notified that the electric vehicle is out of power, and the control system that receives the notification guides the self-propelled robot to the stop position of the electric vehicle. The power deficiency relief system for an electric vehicle according to claim 1 . Claim 1 is characterized in that the electric vehicle is delivered at the boarding / alighting position, and the electric vehicle is automatically driven unmanned by a control system from the boarding / alighting position to the parking space. Or the electric vehicle shortage relief system according to 2 .

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