JP2014045615A - Charging and generating system for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a charging and generating system capable of generating electric power for performing charging into a vehicle and capable of performing charging into the vehicle, using the generated power, only when a user of the vehicle needs charging.SOLUTION: While electric power required for charging into an electric vehicle or the like is being generated, making effective use of oscillation energy, charging can be performed only when a vehicle user needs charging, thus providing high convenience. Generating and charging can be performed only by the system, thus achieving high energy saving and thus leading to promotion of an ecologically friendly electric vehicle and the like.

Description

  The present invention relates to a vehicle power generation system for charging an in-vehicle storage battery such as an electric vehicle.

  Generally, a vehicle that has a storage battery (battery) inside such as an electric vehicle or a hybrid vehicle and needs to be charged to the storage battery (battery) needs to be charged at home (at home) or at a charging stand. It takes time and effort. In addition, there is a problem that the vehicle cannot travel during charging, but in order to solve such a problem, for example, Patent Documents 1 to 3 and the like disclose nothing about a vehicle that is temporarily stopped at an intersection or the like. A charging system that performs charging at a contact is disclosed.

JP-A-10-75535 JP 2005-73313 A JP 2010-167898 A

However, in the conventional charging systems such as Patent Documents 1 to 3, since the electric power for charging the vehicle uses a commercial power supply or an AC power supply, it does not contribute to energy saving. There was a problem that the system could not be used in the event of a sudden power failure when such a situation occurred.
In addition, there is a problem that the vehicle passing through an intersection or the like is unconditionally charged or charged when the vehicle's battery level is low, so that it is charged even when the user of the vehicle does not want to be charged. there were.

  The present invention has been made to solve the above-described problems, and generates electric power for charging a vehicle and uses the generated electric power to charge the user of the vehicle. An object of the present invention is to provide a charging / generating system that can charge a vehicle only when desired.

  In order to achieve the above object, a charging / power generation system according to the present invention includes a vibration power generation device that is embedded or laid in an area where a moving body moves and generates power by vibration generated by the movement of the moving body, and the vibration power generation device generates power. A power storage device that stores the generated power, a power supply device that is embedded or laid in an area where the vehicle travels, and that uses the power stored in the power storage device to charge a vehicle-mounted storage battery mounted on the vehicle in a contactless manner; A communication information acquisition unit that performs wireless communication with the vehicle, and charging that instructs the power supply device to charge the vehicle storage battery based on the vehicle information of the vehicle acquired by the communication information acquisition unit And a control unit.

  According to the present invention, the effective use of vibration energy can generate power necessary for charging an electric vehicle or the like, and can be charged only when the user of the vehicle wants to charge. Good. Further, since power generation and charging can be performed only by this system, there is an energy saving effect, and it can be connected to promotion of an environmentally friendly electric vehicle or the like.

1 is a schematic configuration diagram of a charging / power generation system for a vehicle according to Embodiment 1. FIG. It is a figure which shows the electric power generation function part of a charging / power generation system, and the electric power generation image by a vehicle. It is a figure which shows the charge function part of a charging / generating system, and the charge image to a vehicle. 3 is a flowchart showing processing of a charging function portion of the charging / generating system in the first embodiment. It is an example of the determination table for determining whether to charge based on the classification information of a vehicle, and a battery remaining charge. It is a schematic diagram of the intersection which shows the area which can charge the vehicle by which the charging / power generation system is embed | buried under the basement. It is explanatory drawing which shows an example of the rule of the priority of charge. FIG. 3 is a schematic configuration diagram of a charging / power generation system for a vehicle in a second embodiment. FIG. 5 is a schematic configuration diagram of a charging / power generation system for a vehicle in a third embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a schematic configuration diagram of a vehicle charging / generating system according to Embodiment 1 of the present invention. This charging / power generation system 10 includes a vibration power generation device 1, a power storage device 2, a plurality of transmission circuits (power feeding devices) 3, a charge control unit 4, and a communication information acquisition unit 5, and movement of people such as intersections and vehicles It is buried or laid in the area where the body moves. And it operate | moves as shown below between the vehicles 11 which pass the ground of the area where this charging / power generation system 10 was installed (buried or laid).

The charging / power generation system 10 may be buried underground such as an intersection, laid on the shoulder of a road, or laid on the ground so that people, vehicles, etc. can pass therethrough. The term “installation” means buried or laid.
And in this Embodiment 1, the vibration electric power generation system 10, the vibration electric power generating apparatus 1, the electrical storage apparatus 2, the some transmission circuit (electric power feeding apparatus) 3, the charge control part 4, and the communication information acquisition part 5 which are the component are as follows. The description will be made assuming that it is buried underground at an intersection where there are many movements (traffic) of moving objects such as people and vehicles. The same applies to the following embodiments.

FIG. 2 is a diagram illustrating a power generation image of the power generation function part (vibration power generation device 1 and power storage device 2) of the charging / power generation system 10 and the vehicle 11 or the like.
The vibration power generation device 1 uses, for example, a piezoelectric element to generate power by vibration generated by movement of a pedestrian or a vehicle traveling on the ground in an area where the charging / power generation system 10 is installed. The generated electric power is stored in the power storage device 2 and used for charging the vehicle 11 that needs to be charged, such as an electric vehicle or a hybrid vehicle.

FIG. 3 shows a charging function portion (power storage device 2, a plurality of transmission circuits (power feeding devices) 3, a charging control unit 4 and a communication information acquisition unit 5) in the charging / generating system 10 and an image of charging the vehicle 11. FIG.
The vehicle 11 stores a reception circuit 12 that receives a signal (electric power) from the transmission circuit (power supply device) 3 of the charging / power generation system 10 in a contactless manner, an in-vehicle storage battery 13 that is charged by the electric power, and vehicle information that will be described later. The vehicle information storage unit 14 and a communication unit 15 that transmits the vehicle information to the charging / generating system 10 via an ETC (Electric Toll Collection System / registered trademark, which will be omitted below) or the like.

  A plurality of transmission circuits (power feeding devices) 3 of the charging / power generation system 10 are installed at predetermined intervals around an intersection that is an area where the vehicle 11 travels, and any of the transmission circuits (power feeding devices) 3 is a power storage device. 2 is receiving power stored in it. Then, according to the position of the vehicle 11, the vehicle 11 is charged by using the electric power stored in the power storage device 2 from the transmission circuit (power feeding device) 3 present at the corresponding position. In addition, about the method of charging the vehicle-mounted storage battery 13 in the vehicle 11 from the transmission circuit (power supply device) 3 via the reception circuit 12 of the vehicle 11 without contact, for example, as described in Patent Documents 1 to 3 and the like. Since it is a well-known technique, description is abbreviate | omitted here.

The charging control unit 4 acquires vehicle information stored in the vehicle information storage unit 14 of the vehicle 11 via the communication information acquisition unit 5 described later, and charges the vehicle 11 based on the vehicle information. If it is determined whether or not charging is to be performed, the transmitting circuit (power feeding device) 3 is instructed to charge the in-vehicle storage battery 13 of the vehicle 11.
Then, the communication information acquisition unit 5 performs wireless communication with the vehicle 11 via the communication unit 15 of the vehicle 11, receives vehicle information of the vehicle 11, and outputs the vehicle information to the charging control unit 4.

  As described above, the charging / power generation system 10 generates and stores electric power for charging the vehicle by vibration when the person or the vehicle passes, and the stored electric power is required for the vehicle 11. Since it can be used for charging the battery, power generation and charging can be performed only by this system, so that there is an energy saving effect, and it can be connected to promotion of an environmentally friendly electric vehicle or the like.

  Here, vehicle information of the vehicle 11 will be described. The vehicle information includes at least (1) vehicle type information, (2) the remaining battery level of the vehicle, and (3) whether or not charging is desired. (1) The vehicle type information is information indicating whether the vehicle is a priority vehicle such as an emergency vehicle or a disabled vehicle. Information about whether the vehicle is a vehicle that requires battery charging, such as an electric vehicle or a hybrid vehicle, may also be included in this type information. Since it is not necessary to transmit information to the charging / power generation system, it is assumed here that information is exchanged only with a vehicle that needs to be charged with a battery. Only. Further, (2) the battery remaining amount of the vehicle indicates the remaining amount (battery remaining amount) of the in-vehicle storage battery 13 of the vehicle 11.

  Further, (3) “whether or not charging is desired” is a flag indicating whether or not the driver of the vehicle 11 wishes to charge the vehicle 11 by a charging / generating system installed in an area such as an intersection. Is turned on when charging is desired, and is turned off when charging is not desired. This can be set by the driver in advance, and by turning this setting ON, it is automatic when waiting for a signal at an intersection, such as when the distance to the home is far away or when the charging station is unknown. Can be charged automatically. On the other hand, even if the remaining battery level of the vehicle 11 is low, it is possible to turn off the charging request when the vehicle 11 is just a short distance away from home.

Next, determination processing and charging instruction operation by the charging control unit 4 will be described with reference to a flowchart shown in FIG.
First, when the charging control unit 4 receives the vehicle information of the vehicle 11 via the communication information acquisition unit 5 (step ST1), whether or not the charging request is ON (present) in the vehicle information. Is determined (step ST2). If the desire for charging is OFF (none) (NO in step ST2), the processing is terminated as it is. On the other hand, when the charge request is ON (YES) (in the case of YES in step ST2), the vehicle type information and the remaining battery level in the vehicle information are further determined as shown in FIG. (Step ST3).

The charge control unit 4 holds a determination table based on the vehicle type information and the remaining battery level (remaining battery level) in advance, and determines whether or not charging is possible with reference to the determination table.
FIG. 5 is an example of a determination table for determining whether or not to charge based on the vehicle type information and the remaining battery level. As shown in FIG. 5, for example, when the vehicle type information is a priority vehicle, it is determined that the battery is less than 50% “charge”, and when it is 50% or more, “do not charge”. Is determined. Further, in the case of a general vehicle (ordinary vehicle), if the remaining battery level is less than 20%, it is determined to be “charged”, and if it is 20% or more, it is determined to be “not charged”.

  According to this determination table, for example, when the vehicle type information is a priority vehicle, it is “charged” when the remaining battery level is less than 50% (in the case of YES in step ST4), the transmission circuit ( The power supply device) 3 is instructed to perform charging (step ST5), and when the remaining battery level is 50% or more, it is “not charged” (in the case of NO in step ST4), so the processing is terminated. Similarly, in the case of a general vehicle (ordinary vehicle), when the remaining battery level is less than 20%, it is “charged” (in the case of YES in step ST4), and therefore the transmission circuit (power feeding device) 3 is charged. (Step ST5), and when the remaining battery level is 20% or more, it is “not charged” (in the case of NO in step ST4), the process is terminated.

  Thus, when the request for charging is ON (present), based on the vehicle type information and the remaining amount of the in-vehicle storage battery, an instruction is given to the transmission circuit (power supply device) 3, Charging can be performed efficiently only when the user of the vehicle wants charging.

  Here, based on the vehicle type information and the remaining battery level (remaining battery level), it is determined whether or not to charge each vehicle with reference to a determination table as shown in FIG. Therefore, although it has been described that it is determined whether to charge or not, charging may be performed with priority given to each vehicle based on the type information of each vehicle and the remaining battery level. This will be described below.

  FIG. 6 is a schematic diagram of an intersection showing an area where the charging / power generation system 10 is installed in the basement and the vehicle can be charged. This charging / power generation system 10 is installed in an area with a traffic light. FIG. 6 shows a case of left-hand traffic, and a gray portion is a charging area (stop area) 21. Then, the vehicle existing on the charging area 21 is charged. In FIG. 6, for example, the traffic lights 22 and 23 in the up and down direction are blue and the vehicle passes, the traffic lights 24 and 25 in the left and right direction are red, and a plurality of vehicles stop on the road in the left and right direction (charging area 21). Consider the case. At this time, it is assumed that a plurality of vehicles (for example, three vehicles) are also stopped on the road from the left direction to the right direction, and a plurality of vehicles (for example, three vehicles) are also stopped on the road from the right direction to the left direction. .

In such a case, according to a preset rule, which vehicle is preferentially charged is determined, and charging is performed according to the priority order. FIG. 7 is an explanatory diagram showing an example of charging priority rules.
In this case as well, charging is performed only for vehicles whose charging desire is ON. For example, the vehicle type information is a priority vehicle, and the remaining battery level is less than 10%. The thing (A) is charged most preferentially. At this time, charging is performed until the remaining battery level reaches 10%.

Next, the vehicle type information is a general vehicle (ordinary vehicle) and the remaining battery level (B) (B) is charged until the remaining battery level reaches 10%.
Next, the vehicles whose vehicle type information is the priority vehicle and the remaining battery level is 10% or more and less than 20% (A and C) are charged until the remaining battery level reaches 20%.
Finally, a vehicle (B and D) whose vehicle type information is a general vehicle (ordinary vehicle) and whose remaining battery level is 10% or more and less than 20% is charged until the remaining battery level reaches 20%.

  In this way, by giving a priority order based on the type information of the vehicle and the remaining amount (battery remaining amount) of the in-vehicle storage battery, and instructing the transmission circuit (power supply device) 3 to charge, During a short stop where a plurality of vehicles are waiting for a signal, it is possible to efficiently supply the minimum necessary power to the plurality of vehicles.

  The vehicle type information may include vehicle position information. In this way, when the charging control unit 4 instructs the transmission circuit (power supply device) 3 to charge, the transmission circuit (power supply device) installed at a position corresponding to the position information of the vehicle. 3 can be instructed to charge, so that charging can be performed more efficiently.

  As described above, according to the first embodiment, the vehicle can be charged while generating electric power necessary for charging an electric vehicle or the like by effectively using the vibration energy. Good. Further, since power generation and charging can be performed only by this system, there is an energy saving effect, and it can be connected to promotion of an environmentally friendly electric vehicle or the like.

In addition, when the user's request for charging is ON (present), an instruction is given to the transmission circuit (power feeding device) 3 based on the vehicle type information and the remaining amount of the in-vehicle storage battery, Charging can be performed efficiently only when the user of the vehicle wants charging.
In addition, a priority order is assigned based on the vehicle type information and the remaining amount of the on-vehicle storage battery, and the charging circuit (power supply device) 3 is instructed to charge, thereby allowing a plurality of vehicles to wait for a signal. While the vehicle is stopped for a short time, it is possible to efficiently supply a minimum amount of power to a plurality of vehicles.

Embodiment 2. FIG.
FIG. 8 is a schematic configuration diagram of a charging / generating system for a vehicle according to Embodiment 2 of the present invention. In addition, the same code | symbol is attached | subjected to the structure similar to what was demonstrated in Embodiment 1, and the overlapping description is abbreviate | omitted. The charging / power generation system 20 of the second embodiment described below further includes a charging control unit 6 as compared with the charging / power generation system 10 of the first embodiment. This charging / generating system 20 is also installed in an area with a traffic light as shown in FIG. 6 (for example, underground such as an intersection).

In this case, it is assumed that the vehicle information stored in the vehicle information storage unit 14 of the vehicle 11 includes a vehicle identification number for identifying the vehicle.
The charging control unit 6 acquires vehicle information stored in the vehicle information storage unit 14 of the vehicle 11 via the communication information acquisition unit 5 in the same manner as the charging control unit 4, and the vehicle identification number in the vehicle information. The charging fee is calculated based on the remaining amount of the on-vehicle storage battery. For example, as illustrated in FIG. 6, when a vehicle 11 coming from the left direction goes straight as an example, the vehicle 11 acquired at the charge calculation start point (31 in FIG. 6) is obtained for this vehicle 11. Based on the difference between the remaining battery level and the remaining battery level of the vehicle with the same vehicle identification number acquired at the charge calculation end point 41, the amount of electric power charged in the vehicle 11 is calculated, and the charging fee is calculated based on that.

When the vehicle 11 turns left, the charge calculation end point is 43. When the vehicle 11 turns right, the charge calculation end point is 44. In either case, the point is designated as the same vehicle identification number. Based on the vehicle information acquired when the vehicle 11 passes, the amount of electric power charged in the vehicle 11 can be calculated, and the charging fee can be calculated.
The method for charging the charging fee calculated in this way to the vehicle 11 having the vehicle identification number may be performed in the same manner as for charging a toll road fee by ETC, for example. Omitted.

  As described above, according to the second embodiment, in addition to the same effects as in the first embodiment, even when the remaining battery level of the vehicle 11 is low, the distance to the home is a short distance, etc. In this case, it is possible to prevent a charge from being automatically charged by turning off the charge request.

  In addition, based on the vehicle type information in the acquired vehicle information, control that does not charge in the case of a priority vehicle, and the above calculated charging fee is reduced (for example, half price), You may make it perform control called. As a result, a more detailed billing system can be realized.

Embodiment 3 FIG.
FIG. 9 is a schematic configuration diagram of a vehicle power generation system according to Embodiment 3 of the present invention. In addition, the same code | symbol is attached | subjected to the structure similar to what was demonstrated in Embodiment 1, and the overlapping description is abbreviate | omitted. The charging / power generation system 30 according to the third embodiment described below further includes a power failure information acquisition unit 7 and a signal power supply unit 8 as compared with the charging / power generation system 10 according to the first embodiment. This charging / generating system 30 is also installed in an area with a traffic signal as shown in FIG. 6 (for example, underground such as an intersection).

The power failure information acquisition unit 7 acquires power failure information representing an area where a power failure occurs from an electric power company or the like.
When the power failure information acquired by the power failure information acquisition unit 7 includes the area where the charging / power generation system 30 is installed, the signal power supply unit 8 uses the power stored in the power storage device 2. Then, power is supplied to the traffic lights in the area.

As described above, according to the third embodiment, in addition to the effects in the first embodiment, in the event of a power failure, power is supplied from the power storage device 2 of the charging / generating system 30 installed underground to the traffic light. Therefore, it is possible to avoid traffic accidents and difficult traffic situations caused by traffic signal blackouts due to disasters and the like.
Moreover, although the structure which added the power failure information acquisition part 7 and the signal power supply part 8 to the charging / power generation system 10 in Embodiment 1 was demonstrated here, these were added to the charging / power generation system 20 in Embodiment 2. Needless to say, you can.

  In the present invention, within the scope of the invention, any combination of the embodiments, or any modification of any component in each embodiment, or omission of any component in each embodiment is possible. .

  DESCRIPTION OF SYMBOLS 1 Vibration power generator 2 Power storage device 3 Transmission circuit (power supply device) 4 Charging control unit 5 Communication information acquisition unit 6 Charge control unit 7 Power failure information acquisition unit 8 Signal power supply unit 10, 20, 30 Charging power generation system, 11 vehicle, 12 receiving circuit, 13 vehicle storage battery, 14 vehicle information storage unit, 15 communication unit, 21 charging area (stop area), 22, 23, 24, 25 traffic light, 31, 32, 33, 34 Calculation start point, 41, 42, 43, 44 Charge calculation end point.

Claims (6)

A vibration power generation apparatus that is embedded or laid in an area where the moving body moves, and that generates power by vibration generated by the movement of the moving body;
A power storage device for storing electric power generated by the vibration power generation device;
A power feeding device that is embedded or laid in an area where the vehicle travels, and uses a power stored in the power storage device to charge a vehicle-mounted storage battery mounted on the vehicle without contact,
A communication information acquisition unit for performing wireless communication with the vehicle;
And a charging control unit for instructing the power feeding device to charge the in-vehicle storage battery of the vehicle based on the vehicle information of the vehicle acquired by the communication information acquisition unit. Charging and generating system. The vehicle information includes at least the type information of the vehicle, the remaining amount of the in-vehicle storage battery, and whether or not charging is desired,
The charging control unit, when there is a request for the charging, instructs the power feeding device to charge based on the type information of the vehicle and a remaining amount of the in-vehicle storage battery. 1. A vehicle power generation system according to 1. The charging control unit assigns a priority order based on the type information of the vehicle and the remaining amount of the in-vehicle storage battery when instructing charging to the power feeding device, and instructs the power feeding device to charge. The vehicle power generation system according to claim 2, wherein: The power feeding device is buried or laid around the intersection,
The vehicle information includes position information of the vehicle,
The charging control unit, when instructing charging to the power feeding device, instructs charging to the power feeding device embedded or laid at a position corresponding to the position information of the vehicle. The vehicle power generation system according to claim 2. A charging control unit that charges the vehicle based on a difference between a remaining battery level before charging of the in-vehicle storage battery and a remaining battery level after charging when the vehicle is charged from the power supply device. Further comprising
The charging / generating system for a vehicle according to claim 2, wherein the charging control unit does not charge or reduces the charging fee when the vehicle type information is a priority vehicle. The charging and generating system is embedded or laid in an area with a traffic light,
A power outage information acquisition unit for acquiring power outage information;
A signal power supply unit capable of supplying power to the traffic light;
The signal power supply unit uses the power stored in the power storage device when the power outage information acquired by the power outage information acquisition unit includes an area where the charging / power generation system is embedded or laid. Then, electric power is supplied to the traffic light. The vehicle charging and generating system according to claim 1.

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