JP2002281610A - Urban transportation system using trams - Google Patents

Abstract

(57) [Summary] [Problem] Consider measures to popularize trams. A tram has a pantograph for collecting electricity from a storage battery and an overhead line, and a track of the tram has a section without an overhead line and a section in which an overhead line is installed. In the section, the power is collected from the overhead line by the pantograph and the storage battery mounted on the tram 10 is charged,
The tram 10 travels in a section without an overhead line using a storage battery as a power source. In this case, by arranging a section where the overhead wire 20 is installed on the track portion of the train stop 18 and supplying power to the tram 10 at the train stop 18, it is not necessary to install an overhead line in another traveling section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an urban transportation system in which a city transportation centered on a transportation system by a tram is associated with an energy infrastructure and the like, and a future vision of the urban transportation and vehicle society is summarized as a specific proposal as a system technology. It is about the system.

[0002]

2. Description of the Related Art In Japan, the post-war explosion of automobiles and traffic congestion in cities
The tram, which had spread so far and supported urban transportation as a foot of citizens, was abolished. However, in recent years, streetcars (LRTs) have been reviewed as urban transportation means that are friendly to the global environment, and introduction in various cities is being considered. As for automobiles, in addition to conventional gasoline and diesel vehicles, ECV (electric vehicles), FCV (fuel cell vehicles), hybrid vehicles, and the like have attracted attention as low-pollution and non-polluting vehicles.

As a prior art relating to the structure of a power supply unit of a vehicle, Japanese Patent Application Laid-Open No. 48-36876 discloses that a terminal and a lead wire are artificially connected after a battery is mounted, or the battery is disconnected before the battery is removed. A structure is disclosed in which the operation of artificially disconnecting the connection is not required.

[0004]

When a tram is newly introduced into a city, it is desirable to reduce the investment in infrastructure, to match the current cityscape, and to introduce it in harmony with automobile traffic. . For that purpose, it is necessary to review the existing power supply method using overhead lines and consider urban landscape and infrastructure investment. In addition, electric vehicles (EC
In order to spread V), it is necessary to develop charging facilities in the city, but this has also been integrated with the above-mentioned facilities for power supply to trams, and the city has been harmonized. It is desirable to develop a lean infrastructure.

The present invention has been made in view of the above points, and an object of the present invention is to provide a method of supplying power to a tram by using a combination of an overhead wire and a rechargeable battery, using a fuel cell, To provide an urban transportation system that can realize a tram that can run without using overhead lines in some or all sections by adopting uncharged charging that applies inductive charging (transformer principle). is there.
Further, an object of the present invention is to share an electric power line or the like laid on a tram with an overhead vehicle or an electric vehicle, or to mount an electric vehicle that travels through an urban area (urban area) on a vehicle-car-mounted tram vehicle. It is an object of the present invention to provide an urban transportation system that enables coexistence and co-prosperity of trams in a car society by using an operation system in which electric vehicles can receive power supply during transportation.

[0006]

In order to achieve the above object, an urban transportation system using a tram according to the present invention is provided with a pantograph in which an electrically driven tram collects electricity from a storage battery and a ground wire. The track of the tram has a section with no overhead line and a section where the overhead line is installed, and in the section where the overhead line is installed, power is collected from the overhead line by a pantograph and the storage battery mounted on the tram is charged, and there is no overhead line. It is configured to run on a tram in a section using a storage battery as a power source (see FIGS. 1 and 2). In this case, a section where the overhead wire is installed is arranged on the track portion of the train stop so that power can be supplied while the tram is stopped, and no overhead wire is provided on another track portion on which the tram runs. (See FIG. 2).

[0007] Further, the urban transportation system using a tram according to the present invention is provided with a pantograph in which the tram driven by electricity is provided with a storage battery and an overhead line, and the trajectory of the tram corresponds to a section having no overhead line. In the section where the overhead wire is installed, in the section where the overhead wire is installed, power is collected from the overhead wire by the pantograph and the tram travels and the storage battery mounted on the tram is charged, and in the section without the overhead wire, the storage battery is used as a power supply It is characterized by running on a tram (see FIGS. 1 and 3). In this case, a sensor may be provided on the tram and its track to automatically switch between traveling by current collection from the overhead line in the section where the overhead line is installed and traveling by the storage battery in the section without the overhead line. Preferred (see FIG. 3).

[0008] Further, the urban transportation system using a tram according to the present invention is used as a power source for an electrically driven tram.
The fuel cell is mounted on the tram, so that power can be supplied to the tram without using an overhead line. In trams equipped with these storage batteries or fuel cells, by installing a capacitor, it is possible to use a storage battery or fuel cell as a power source in sections without overhead lines (for example, when starting a car, climbing a slope, congestion, etc. ) Can generate high output power.

Further, in the city transportation system using a tram according to the present invention, a power supply of a tram driven by electric power is laid on a road surface, power is supplied to the tram by electromagnetic induction on a track of the tram, and an overhead line is provided. It is characterized in that it is possible to supply electric power to a tram without using a telephone (see FIGS. 4 and 5). Further, in a tram system using both the overhead wire and the power supply from the storage battery, in the tramway track section, instead of providing the overhead wire, instead of providing the overhead wire, a power supply is laid on the road surface and electromagnetic induction is performed on the track. It is also possible to set the section where the inductive charging of the tram is performed, so that power can be supplied to the tram without using an overhead line.

In a tram system using both the overhead line and the power supply from a storage battery, an electric vehicle traveling on a road which is the same as or parallel to the road of the tram serves as a driving power source, and the overhead line installed on the track of the tram. It is possible to receive power supply and charging from the power supply. Further, in a tram system that supplies power from a power source laid on the road surface, an electric vehicle that travels on a road that is the same as or parallel to the tram track is used as a drive power source on the road surface on the tram track. It is possible to receive power supply and charging from an installed power source.

Further, as another form of the above-mentioned urban transportation system using a tram, a vehicle for mounting an automobile is introduced as a tram vehicle, and the tram vehicle is installed in an urban area (or an urban area). It is conceivable to carry and carry the inflowing electric vehicle, and to supply power to the electric vehicle during that time.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below, but the present invention is not limited to the following embodiments, and can be implemented with appropriate modifications. . FIG. 1 shows an example of a tram vehicle used in the first and second embodiments of the present invention. The tram 10 includes a pantograph 12 that collects electricity from an overhead line installed on the ground, and a rechargeable storage battery 14. 16 is a motor. In addition, it is also possible to mount a fuel cell on the tram 10 and use it as a power source. in this case,
Since it is conceivable that the output of the storage battery or the fuel cell becomes insufficient at the time of departure, climbing a hill, congestion, or the like, a capacitor may be mounted on the tram 10.

FIG. 2 is a top view of a main part of an urban transportation system using a tram according to the first embodiment of the present invention. In the present embodiment, by supplying power to the tram at a train stop, the tram is operated by using a charged storage battery as a power source without using the overhead line except at the train stop where the overhead line is installed. is there. As shown in FIG. 2, a charging overhead wire 20 is installed on a track portion where the train stop 18 is located. Track 22 near both ends of overhead wire 20
A pantograph rising ground child 24 and a pantograph falling ground child 26 each serving as a transmitting antenna are provided on the top, and a receiving antenna is provided at the bottom of the tram 10 traveling in the direction indicated by the arrow in FIG. Are provided on the vehicle. When the tram 10 travels in the direction of the arrow, the on-board child 28 is used. Car upper child 3
0 is used when traveling in the opposite direction. In addition, it is also possible to adopt a configuration in which the transmitting side is provided on the step portion of the train stop 18 and the receiving side is provided on the side surface of the tram 10.

As shown in FIGS. 1 and 2, when the tram 10 travels in the direction of the arrow toward the train stop 18, the tram 10 enters the area where the overhead wire 20 is installed, and the pantograph rises on the track 22. The pantograph 12, which has been folded at the top of the tram 10, rises as the vehicle top 28 passes over the top 24, and comes into contact with the overhead wire 20. In this way, the storage battery 14 mounted on the tram 10 is charged at the train stop 18. Then, when the tram 10 departs and passes over the pantograph descending ground child 26, the pantograph 12 descends and is folded again. Tram 1
0 travels using the storage battery 14 as a power source to a train stop where the next charging overhead line is installed. In addition, the overhead wire for charging does not need to be installed at all train stops, and may be installed at, for example, major train stops or terminal stations.
In addition, a charging overhead line can be installed in a garage or the like in addition to a train stop. According to the configuration of the present embodiment, the area where the overhead line is installed is only a train stop for supplying power, and the overhead line is not used in a normal traveling section, which is preferable in view of the scenery.

FIG. 3 is a top view of a main part of an urban transportation system using a tram according to a second embodiment of the present invention. In the present embodiment, a section for collecting electricity from an overhead line and a section for traveling with a storage battery are selectively used according to an area or a situation where a tram runs, and both sections are automatically switched. is there. Upper trajectory 3 shown in FIG.
Reference numeral 2 denotes a track portion that shifts from a section without an overhead line to a section where an overhead line 34 is installed, and a lower track 36 is a track portion that shifts from a section where an overhead line 38 is installed to a section without an overhead line.

As shown in FIGS. 1 and 3, in the section of the track 32 where there is no overhead line, the tram 10 runs on the storage battery 14 with the pantograph 12 lowered, and the tram 10 When the vehicle enters the section, the pantograph 12 rises after passing over the pantograph ascending ground member 40, and the tram 10 collects electricity from the overhead line 34 and travels. In the section of the track 36 where the overhead wire 38 is installed, the tram 10 travels while collecting power from the overhead wire 38 with the pantograph 12 raised, and when passing over the pantograph descending ground member 42, the pantograph 1
2 descends, and the tram 10 enters a section having no overhead line and runs on the storage battery 14. In addition, it is preferable to provide the overhead power line collecting section in which the overhead line is installed in a city center where a large amount of electric power is required or a section with a large number of services, and the storage battery traveling section without the overhead line is a depopulated area or a section with a small number of services. It is preferable to provide them at the like. In addition, the overhead power line collecting section where the overhead line is installed may be a dedicated track for a tram, and the storage battery traveling section without an overhead line may be a combined track with a road of an automobile. Other configurations and operations are the same as those in the first embodiment.

FIGS. 4 and 5 show a main part of an urban transportation system using a tram according to a third embodiment of the present invention. In the present embodiment, a tram power supply is laid on a road surface, and non-call charging using inductive charging (transformer principle) is performed. FIG. 4 is a top view of the conceptual configuration of the present embodiment. As an example, energy is transmitted from a power supply 48 to a road surface on a track 46 at a position of a train stop 44 by electromagnetic induction. Is laid. Then, FIG.
When a tram 54 provided with an induction coil 52 at the bottom of the vehicle as shown in FIG.
Is supplied with power. FIG. 5 is a side view of the conceptual configuration of the present embodiment, which is a method of transmitting energy by electromagnetic induction applying the principle of a transformer, so that a ground wire, a pantograph, and other connection terminals are not used. Power can be supplied to the tram. Further, the configuration of the present embodiment can be adopted instead of the current collection method using overhead wires in the first and second embodiments. Other configurations and operations in this case are the same as those in the first and second embodiments.

Next, an urban transportation system using a tram according to a fourth embodiment of the present invention will be described.
In this embodiment, electric power is supplied to an electric vehicle by sharing power with a tram (LRT). In the electric vehicle 56 shown in FIG. 6, a power supply for the electric vehicle is usually assumed to be a desk lamp. However, a power cable of a tram (LRT) is laid on the road surface, and the charging plug 58 of the electric vehicle 56 is not a fixed type but an open type of an installation type. Power can be supplied while running. The electric power received by the electric vehicle 56 from the LRT power source is measured by an access counter method using a meter installed in the charger 60, and is separately charged by communicating with an operating organization of a tram (LRT). In this way, even if the entire area of the city area is dedicated to the LRT, there is an advantage for the vehicle using the electric vehicle, so that coexistence and co-prosperity can be achieved.
Further, the system in this embodiment that can share the power supply of the tram as the power supply of the electric vehicle can be applied to the configurations of the first, second, and third embodiments described above.

Next, an urban transportation system using a tram according to a fifth embodiment of the present invention will be described.
In the present embodiment, a vehicle-mounted tram (LRT) is introduced, and an electric vehicle that has flowed into an urban area (or an urban area) is mounted on the tram for transportation and transportation. This is an operation system that supplies power. In an urban area or the like, an electric vehicle can pass through it like a ferryboat on the sea, while the electric vehicle is mounted on a tram (LRT) and the vehicle travels while charging while it is like a "gateway". A simple billing system. Instead of a toll in a city area, etc., a dedicated LRT that can receive power when boarding a tram (LRT) is created, and the electric vehicle is charged and charged while moving, and the cruising range of the electric vehicle By extending the time, the convenience of vehicles using electric vehicles will also be improved. With such a system,
The shortcoming of EVs has been the disadvantage of electric vehicles.
It is also possible to use "long-distance charging while charging during the day", which is different from the concept of "cars" that charge in the night and use it during the day.

[0020]

As described above, the present invention has the following effects. (1) As a power supply method to a tram, by using an overhead line and a rechargeable battery together, using a fuel cell, or adopting a non-charged charging applying an inductive charging (transformer principle), A tram that can run without using overhead lines in some or all sections can be realized, and can also contribute to the preservation of cityscape. (2) Since the power supply of the tram can be shared as the power supply of the electric vehicle, the road of coexistence and co-prosperity of the tram in a car society is opened.

[Brief description of the drawings]

FIG. 1 is a schematic configuration side view showing an example of a tram vehicle used in the first and second embodiments of the present invention.

FIG. 2 is a schematic configuration explanatory diagram showing a main part of a city transportation system using a tram according to the first embodiment of the present invention, as viewed from above.

FIG. 3 is a schematic configuration explanatory diagram showing a top view of a main part of an urban transportation system using a tram according to a second embodiment of the present invention.

FIG. 4 is a conceptual configuration explanatory view showing a top view of a main part of an urban transportation system using a tram according to a third embodiment of the present invention.

FIG. 5 is an explanatory side view of a conceptual configuration showing a main part of an urban transportation system using a tram according to a third embodiment of the present invention.

FIG. 6 is a schematic diagram illustrating an example of the configuration of an electric vehicle.

[Explanation of symbols]

 10, 54 tram 12 pantograph 14 storage battery 16 motor 18, 44 train stop 20, 34, 38 overhead wire 22, 32, 36, 46 track 24, 40 pantograph rising ground child 26, 42 pantograph falling ground child 28, 30 vehicle upper child 48 power supply 50, 52 induction coil 56 electric vehicle 58 charging plug 60 charger

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Koji Kadota, Inventor 1-1, Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries, Ltd. Inside Akashi Plant (72) Inventor Kenji Mori 1-1-1, Kawasaki-cho, Akashi-shi, Hyogo Kawasaki Heavy Industries, Ltd. Akashi Factory (72) Inventor Toshio Atsuta 1-1, Kawasaki-cho, Akashi City, Hyogo Prefecture Kawasaki Heavy Industries, Ltd. Akashi Factory F-term (reference) 5H115 PA13 PC02 PI01 PI16 PI18 PO06 PO13 PU01 QE05

Claims (11)

[Claims] 1. An electric-powered tram includes a storage battery and a pantograph for collecting electricity from a ground wire, and the tram has a track-free section and a section in which the wire is installed. In the section where the tram was used, the storage battery mounted on the tram was charged by collecting electricity from the overhead line by the pantograph, and the tram was run using the storage battery as a power source in the section without the overhead line. Transportation system. 2. A section where an overhead line is installed on a track portion of a train stop so that power can be supplied while the tram is stopped, and an overhead line is provided on another track portion on which the tram runs. An urban transportation system using a tram according to claim 1, wherein the system is not provided. 3. A tram that is driven by electricity is provided with a pantograph for collecting electricity from a storage battery and an overhead line, and the track of the tram has a section having no overhead line and a section in which an overhead line is installed. In the section where it was collected, the pantograph collected power from the overhead line to run the tram and charged the storage battery mounted on the tram, and in the section without the overhead line, the tram was run using the storage battery as a power supply. Urban transportation system using a tram. 4. A sensor is provided on a tram and its track to automatically switch between traveling by current collection from an overhead line in a section where an overhead line is installed and traveling by a storage battery in a section without an overhead line. An urban transportation system using the tram according to claim 3. 5. A power supply for a tram driven by electricity,
An urban transportation system using a tram, wherein a fuel cell is mounted on the tram, and power can be supplied to the tram without using an overhead line. 6. The tram according to claim 1, wherein a capacitor is mounted on the tram, and high-output power can be generated when necessary when a storage battery or a fuel cell is used as a power source in a section without an overhead line. Urban transportation system using the tram described in. 7. A power supply for an electric-powered tram is laid on a road surface, power is supplied to the tram by electromagnetic induction on a track of the tram, and power can be supplied to the tram without using an overhead line. An urban transportation system that uses a tram. 8. The section of the tram track where the overhead wire is installed is a section where power supply is laid on the road and inductive charging of the tram is performed by electromagnetic induction on the track instead of providing the overhead wire, and the overhead wire is not used. An urban transportation system using a tram according to any one of claims 1 to 4, wherein the tram can be supplied with power. 9. An electric vehicle traveling on a road that is the same as or parallel to a tramway track can receive power supply and charging from a catenary line installed on the tramway track as a driving power source. An urban transportation system using the tram according to any one of claims 1 to 4. 10. An electric vehicle traveling on a road that is the same as or parallel to a tramway track can receive power supply and charging from a power source laid on a road surface on the tramway track as a driving power source. An urban transportation system using the tram according to claim 7. 11. A vehicle for mounting an automobile as a tram vehicle is introduced, and an electric vehicle that has flowed into an urban area is mounted on the tram vehicle for transportation and transportation, during which power is supplied to the electric vehicle. An urban transportation system using the tram according to claim 1.