JP4968751B2 - Device and method for preventing pantograph malfunction of overhead wire / battery hybrid vehicle - Google Patents

Description

  The present invention relates to an apparatus and a method for preventing malfunction of a pantograph in an overhead line / battery hybrid vehicle that can travel even in a section without an overhead line by electric power stored in an in-vehicle battery.

  An overhead wire / battery hybrid vehicle is a vehicle capable of traveling in a non-electrified line section with the power of a vehicle-mounted battery, and is being developed as a vehicle such as a railway vehicle, a tram, or a monorail.

  Some of the overhead line / battery hybrid vehicles charge the battery from the charging overhead line while stopping at the charging station. When charging from the charging overhead line while the vehicle is stopped, it is necessary to charge rapidly during a short stoppage time.

  In such rapid charging, since a large current is supplied in a short time, the pantograph burn-in becomes a problem. Therefore, many overhead wire / battery hybrid vehicles are provided with a supplementary pantograph for charging (pantograph for charging) in addition to a pantograph (traveling pantograph) for supplying power from the overhead wire. In such a vehicle, it is necessary to prevent malfunctions such as raising the pantograph in the non-overhead section (non-electrified line section) or raising the auxiliary pantograph for charging in the overhead section (electrified line section). For example, if the pantograph is raised in the section of the overhead line, the pantograph may be damaged.

  In the pantograph, the driver usually performs an appropriate operation of raising and lowering the pantograph by visually confirming whether the driver enters an overhead line section, a non-overhead section, or a stop (charging station). However, it is desirable to provide a mechanism for automatically detecting these sections and managing the pantograph up and down. For this purpose, it is necessary to obtain position information indicating which section the vehicle is traveling. The position information of a general railway vehicle can be known, for example, by ATS. However, for example, in the case of a tram, it is difficult to know accurate position information because an ATS is not installed.

  On the other hand, as a train control device that performs vehicle contact detection wirelessly, a Bali-type train detection type blocking device (also referred to as Computer and Microwave Balise Aided Train control system, COMBAT) has been developed.

FIG. 10 is a diagram illustrating an example of a COMBAT device configuration.
COMMAT is composed of a ground interrogator Q and a ground responder R provided to face each other across a track, and an on-board responder (tag) T provided on the vehicle body. The ground interrogator Q and the ground responder R are provided at predetermined intervals along the track. Each interrogator Q is electrically connected to a train detection device C installed in the equipment room. The on-board responders T are provided at the front and rear portions on both side surfaces of the vehicle body. This on-board responder T includes vehicle information (such as a train number).

  When there is no vehicle between the ground interrogator Q and the responder R, communication between the two is established. On the other hand, when the vehicle enters between the interrogator Q and the responder R, this communication is not established. When the onboard responder T of the vehicle enters the position facing the ground interrogator Q, the above-mentioned vehicle information is read from the onboard responder T in the ground interrogator Q. This information is sent to the train detection device C, and the position of this vehicle is specified. In addition, since the on-board responder T is provided before and after the vehicle, the approach direction of the vehicle can also be specified.

  This system performs vehicle detection as described above. By applying this system, position information of the vehicle can be obtained.

  The present invention has been made in view of the above-mentioned problems, and accurately knows whether a section with overhead lines or a section without overhead lines is used, and raises and lowers the pantograph based on the information to prevent pantograph malfunctions of the overhead line / battery hybrid vehicle. An object is to provide an apparatus.

  An apparatus for preventing malfunction of a pantograph of an overhead wire / battery hybrid vehicle, which is the base of the present invention, is an overhead wire / battery hybrid that can receive electric power from an overhead wire in a section with an overhead wire and travel using in-vehicle battery stored power in a section without an overhead wire. A device for preventing malfunction of a pantograph in a vehicle, and means for obtaining position information of a section traveling in the present or near future, and determining whether the section position is a section with overhead lines or a section without overhead lines Means, and control means for controlling raising and lowering of the pantograph in accordance with the determination by the determination means.

  According to the present invention, it is automatically determined whether the traveling position of the train is an overhead line section, a non-overhead line section, or a charging station, and the raising / lowering of the pantograph is controlled according to the position. For example, when the crew member has forgotten the operation of lowering the pantograph after passing through the overhead line section, the crew member is controlled to automatically lower the pantograph and lock it after grasping that he has left the overhead line section. For this reason, it is possible to avoid a situation in which the pantograph is lifted even when entering the charging station or the overhead line section while the pantograph is raised or entering the non-overhead section.

  In the present invention, the position information acquisition means is provided along a track, and includes a ground responder (tag) including information on the position (position information), an on-vehicle interrogator provided in the vehicle, A position detecting device for obtaining position information of the ground responder read by the interrogator, and from the position information read by the interrogator, an overhead line section, a non-overhead line section, a charging station (stop) It is preferable to determine whether or not.

  In this case, by including information on the position of the overhead line section, non-overhead line section, charging station, etc. in the ground responder, if this information is read out by the onboard interrogator, the position where the vehicle is currently traveling You can get information about. Alternatively, the ground responder can be used as a simple position display tag, and the overhead line information of the line section can be stored in the position detection device on the upper side of the vehicle to determine the overhead line state at the vehicle position.

  In the present invention, it is preferable that the pantograph includes a pantograph for traveling and a pantograph for charging separately, and the control means controls both pantographs independently.

  In general, when charging a battery, the amount of current supplied is different between when charging from an overhead line while traveling and when charging quickly from a charging overhead line while stopping at a charging station. It is also preferable to use pantographs with different plate properties. Therefore, by making it possible to control both pantographs independently, the pantograph for traveling can be mainly controlled in the overhead line section, and the pantograph for charging can be mainly controlled in the charging station. A single pantograph can be used for both running charging and charging at a charging station.

  In the present invention, it is preferable to provide a pantograph rise detection device on the ground or on the vehicle and detect the rise of the pantograph in a non-overhead section.

  In this case, the pantograph rising detection device can be constituted by a tag attached to the pantograph and the on-vehicle interrogator.

  By providing the pantograph rising detection device, it is possible to detect that the pantograph is rising while traveling in the overhead line section or when entering the overhead line section from the overhead line section, so that the pantograph can be controlled to be lowered. . The pantograph rise detection device can be installed on the ground or on the vehicle. When installing on the ground, for example, an object that is provided in front of the entrance notice tag in the overhead line section and detects an object passing through a position where the pantograph is raised can be used. When installing on a vehicle, for example, a COMBAT interrogator can be mounted on the roof of the vehicle, and a tag can be installed on the lower frame of the pantograph. And a pantograph rise can be detected by the presence or absence of communication between a tag and an interrogator.

  The pantograph malfunction prevention method for an overhead wire / battery hybrid vehicle, which is the basis of the present invention, is an overhead wire / battery hybrid that receives power supply from an overhead wire in a section with an overhead wire and travels using in-vehicle battery stored power in a section without an overhead wire. A method for preventing malfunction of a pantograph in a vehicle, obtaining position information of a section that travels in the present or near future, determining whether the section position is a section with overhead lines or a section without overhead lines, and The raising and lowering of the pantograph is controlled in accordance with the determination by the determining means.

  In the present invention, a ground responder (tag) that is provided along a track and includes information on the position (position information), an onboard interrogator provided on the vehicle, and read by the interrogator. A position detecting device for obtaining position information of the ground responder, and obtaining the position information from the position information read out by the interrogator to obtain an overhead line section, a non-overhead section, a charging station (stop) It can be determined whether or not.

  In the present invention, it is preferable that the pantograph includes a pantograph for traveling and a pantograph for charging separately, and the control means controls both pantographs independently.

  In the present invention, when the pantograph leaves the charging station without descending, the pantograph can be controlled to descend and lock.

  Further, in the present invention, when the pantograph leaves the overhead line section without descending, the pantograph can be controlled to descend and lock.

  Further, in the present invention, when the pantograph reaches the charging station or before the entrance of the overhead line section while the pantograph is raised, the pantograph can be controlled to be lowered and locked.

  Furthermore, in the present invention, a pantograph rising detection device can be further provided on the ground or on the vehicle, and when the rising of the pantograph is detected in a non-overhead section, the pantograph can be controlled to be lowered and locked.

  As is clear from the above description, according to the present invention, it is automatically determined whether or not the traveling position of the train is an overhead line section, a non-overhead section, or a charging station, and the pantograph is raised or lowered according to the position. Can be controlled. For this reason, it is possible to avoid a situation in which the pantograph is lifted even when entering the charging station or the overhead line section while the pantograph is raised or entering the non-overhead section.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
First, the structure of the overhead wire / battery hybrid vehicle will be briefly described.
FIG. 9 is a diagram illustrating an example of the structure of an overhead wire / battery hybrid vehicle.
A battery (not shown) is mounted on this overhead wire / battery hybrid vehicle. This battery uses a lithium ion secondary battery system, and can be rapidly charged, and has a characteristic that the life is extended by repeating the usage of discharging little by little. As an example, a large current of a voltage of 600 volts and a chargeable / dischargeable current of 500 A can be obtained.

A traveling pantograph 1 and a charging pantograph 3 are provided on the roof of the vehicle (in the figure, the traveling pantograph 1 is raised and the charging pantograph 3 is lowered). The traveling pantograph 1 is used for a normal train, and can collect current from an overhead trolley (wire or rigid body) during traveling. This traveling pantograph 1 has characteristics such as a low separation rate during high-speed traveling and high dynamic followability, and the sliding plate is made of a material such as carbon. The electrical resistance value of this sliding plate is equal to or higher than that of a charging pantograph described later. If the sliding plate is made of an iron-based material having a low electric resistance value, it can also be used as a charging pantograph.
The charging pantograph 3 is used for charging a large current while the vehicle is stopped. This charging pantograph 3 has a characteristic to withstand heat rise at the contact portion during charging, and the sliding plate is made of, for example, a copper-based material. The electric resistance value of the sliding plate is equal to or less than that of the traveling pantograph.
These pantographs 1 and 3 are locked in a lowered state by a mechanical key 5 described later.

  The traveling pantograph 1 and the charging pantograph 3 may be the same or may be used in combination. In the example shown below, a case where different pantographs are used for traveling and charging will be described.

Next, position information acquisition means of the overhead wire / battery hybrid vehicle will be described.
This position information acquisition means is a system that is substantially the same as the above-described COMBAT, but includes an interrogator 7 mounted on the vehicle and a responder (position information tag) installed on the ground. The position information tag is attached to a pole such as a power pole or a pole (hereinafter collectively referred to as a power pole) provided at a predetermined interval along the track, and includes information indicating the position and equipment. For example, information such as a stop, a charging station, an overhead line section, and a non-overhead line section is included (described later with reference to FIG. 1). Moreover, you may include the information regarding the distance to a charging station, an overhead line area, and a non-overhead line area. Such tags are maintenance-free, do not require a power source, and are inexpensive, so even if a large number of tags are installed, the cost does not increase greatly.
On the other hand, the interrogators 7A and 7B are mounted on front and rear portions of both side surfaces of the vehicle body. A position detection device (not shown) that obtains position information from information read from the position information tag by the interrogator 7 is mounted on the vehicle.
Alternatively, the ground responder can be used as a simple position display tag and the overhead line information of the line section can be stored in the position detection device on the upper side of the vehicle to determine the overhead line information at the vehicle position.

  When traveling in a section other than the utility pole, there is no response to the interrogator 7 mounted on the vehicle body. However, when reaching the utility pole to which the position information tag is attached, communication is established between the on-board interrogator 7 and the position information tag of the utility pole, and the information included in the position information tag is read out by the on-board interrogator 7. Based on this information, it is possible to know where the vehicle is currently traveling, and position information related to the distance to a stop, an overhead line section, a non-overhead line section, or the like.

Next, the concept of the pantograph malfunction prevention method of the present invention will be briefly described.
FIG. 1 is a diagram for explaining the concept of the pantograph malfunction prevention method of the present invention.
As shown in the figure, utility poles P or support posts are erected in parallel along the line R at a predetermined interval. In this example, utility poles J ′ are erected from the utility pole E in the order along the traveling direction of the train. The line section to the utility pole F is an overhead line section (current collection traveling section) where the electric wire EC is stretched, and the line section from the utility pole F to the utility pole J is a non-overhead section (battery traveling section) or a different electrification section (for example, a section where the voltage changes) ), And after the utility pole J, it is a fast charging section (charging station) that stops. The charging station is, for example, a station, a stop, or a part that is installed in the middle of a track and performs high-current charging while the vehicle is stopped. The charging station is provided with a charging overhead line CC. The charging overhead line CC is a partial overhead line such as a rigid trolley that is laid for several meters at a charging station.

  A position information tag T is attached to each power pole P. The position information tag T of the utility pole E includes information indicating that it is an overhead line section. The position information tag T of the utility pole F includes information indicating the exit of the overhead line section. The position information tag T from the utility pole G to the utility pole I includes information indicating that it is a no-wire section. The position information tag T of the utility pole J includes information indicating the entrance of the charging station (start of the quick charging section). The position information tag T of the utility pole J ′ includes information indicating the exit of the charging station (the end of the quick charging section).

  When the train travels from the right side of the figure, in the overhead line section, it is read from the position information tag T of the utility pole E that the vehicle is located in the overhead line section, and only the pantograph 1 for traveling goes up. Control is performed so that power is supplied or regenerated from the overhead line EC to the drive power converter and the battery via the pantograph 1. On the other hand, the charging pantograph 3 is controlled to be locked. When the train reaches the utility pole F, it is read from the position information tag T of the utility pole F that the vehicle is located at the overhead line section exit, and the vehicle is controlled to lower the traveling pantograph 1. When the utility pole G is reached, it is read from the position information tag T of the utility pole that the vehicle is located in the unwired section, and the pantographs 1 and 3 are controlled to be locked. Moreover, since the section is battery-running, it may shift to an energy saving mode such as turning off the air conditioning of the vehicle depending on the remaining battery level.

  When the vehicle passes through the utility pole J, it is read from the position information tag T of the utility pole that the vehicle is located at the entrance of the charging station, and the vehicle is controlled to allow the charging pantograph 3 to rise. The battery is charged through the pantograph 3 from the charging overhead line CC. At this time, the pantograph 1 for traveling may be raised at the same time. However, most of the current flows through the charging pantograph 3. When the vehicle departs from the charging station and reaches the utility pole J ′, it is read from the position information tag T of the utility pole that the vehicle is located at the exit of the stop. In the vehicle, the charging pantograph 3 (or both pantographs) 1, 3) is controlled to be lowered and locked.

FIG. 2 is a flowchart showing an example of control according to the embodiment of the present invention.
FIG. 3 is a table for explaining the operation of each pantograph in the example of FIG.
In this example, an example of an operation when a train enters and stops at a charging station (stop) where a charging overhead line is located from the unwired section and exits from the charging station after charging (in FIG. 1, the train is a non-wired line). If you enter the charging stop from the section and stop, then leave after charging). The first (entrance) utility pole (reference symbol J in FIG. 1) of the charging station is provided with a position information tag (this tag is referred to as an entrance tag), and the last (exit) utility pole (reference symbol J ′ in FIG. 1). Is provided with a position information tag (this tag is referred to as an exit tag). The entrance tag includes information indicating that it is a charging stop entrance. The exit tag includes information indicating that it is a charging stop exit.

First, the control operation of each pantograph in this example will be described with reference to FIG.
When the entrance tag is read, the entrance flag is set to 1 (true) and the exit flag is set to 0 (false). When the exit tag is read, the entrance flag is set to 0 and the exit flag is set to 1. . When the entrance flag is 1 and the exit flag is 0 (false), unlocking of the charging pantograph is permitted and the traveling pantograph is locked. When the entrance flag is 1 and the exit flag is 1, when the entrance flag is 0 and the exit flag is 1, and when the entrance flag is 0 and the exit flag is 0, both pantographs are locked.

The flowchart will be described with reference to FIG.
Both the pantograph for charging and the pantograph for traveling enter the charging station in a lowered state. Then, in S1, it is determined whether or not the entrance flag is 1. Here, if the entrance flag is 1 and the exit flag is 0, unlocking of the charging pantograph is permitted. Specifically, the excitation circuit contact of the charging pantograph lift relay is configured. At this stage, the mechanical key of the charging pantograph is not removed. The mechanical key is a movable hook that engages with the key at the tip of the pantograph. This movable hook operates to engage and disengage the key of the pantograph by electromagnetic means.

  If the entrance flag is 1 and the exit flag is 0 in S1, the process proceeds to S2 to permit unlocking of the charging pantograph. If the entrance flag is not 1 in S1, the process proceeds to S3, returns to S1, and repeats until the entrance flag becomes 1.

  Next, in S4, it is determined whether or not the exit flag is 1. If the exit flag is not 1, it indicates that the vehicle has not left the charging stop, the crew member determines that the train is stopped, and presses the charging pantograph ascending button. The charging pantograph ascent button is activated when the entrance flag is 1 and the exit flag is 0, and constitutes an excitation circuit for the charging pantograph ascending relay. Furthermore, when the button is pressed, the mechanical key of the charging pantograph can be released.

  Next, in S5, it is determined whether or not the charging pantograph up button has been pressed. If it is determined in S5 that the button has not been pressed, the process proceeds to S6, returns to S4, and repeats until it is determined that the button has been pressed. If it is determined in S5 that the button has been pressed, the process proceeds to S7, where the mechanical key is released and the charging pantograph is raised. Thereafter, in S <b> 8, the charging operation is started after the vehicle-mounted power converter (power converter that performs battery charging or charging / discharging) confirms the voltage. For example, the charging operation is started when the voltage of the charging overhead wire is within a predetermined range (for example, DC 500V or more and 900V or less). Here, a charge start button may be provided separately. In this case, charging is started when the crew member presses the charging start button.

In S9, it is determined whether or not the charge end button has been pressed. If it is not determined that the button has been pressed, the process proceeds to S10 to determine whether a predetermined time has elapsed since the start of charging. The predetermined time is the time when the power converter has reached the amount of charge determined from the current value and voltage value, or the time when the power converter has determined that the vehicle has reached the full stoppage time. Charging is automatically terminated.
When the predetermined time has not elapsed in S10, the process from S9 is repeated after proceeding to S11.

  When the charging end button is pressed in S9, or when a predetermined time has elapsed in S10, charging ends in S12. After charging is complete, the crew member presses the charging pantograph lowering button. Therefore, in S13, it is determined whether or not the charging pantograph lowering button has been pressed. If it is determined that the button has been pressed, the process proceeds to S14, the charging pantograph lowering relay is excited, the process proceeds to S15, and after the pantograph is lowered, a mechanical key is applied. At this point, the charging pantograph raising relay excitation circuit remains configured. Then, it progresses to S16 and a driving | operation is started (a vehicle is started).

  After the operation is started, it is determined whether or not the exit flag is 1 in S4. If the exit flag is 1, the process proceeds to S17 where the charging pantograph is locked. Specifically, the excitation circuit of the charging pantograph lift relay is not configured, and unlocking of the charging pantograph is not permitted.

  Note that if the driver forgets to press the charging pantograph lowering button and it is not determined in S13 that the charging pantograph lowering button has been pressed, the process proceeds to S16 and the operation is started. If the exit flag is 1 in S4, the charging pantograph lowering relay is excited in S18, and after the pantograph is lowered in S19, a mechanical key is applied. At this point, the charging pantograph raising relay excitation circuit remains configured. Thereafter, the process proceeds to S17, where the charging pantograph is locked (the excitation circuit of the charging pantograph ascending relay is not configured, and unlocking of the charging pantograph is not permitted).

Thus, even if the crew member has forgotten to lower the charging pantograph after the charging is completed at the charging stop, the charging pantograph is controlled to lower when reaching the outlet of the charging stop.
In the above example, when the crew member forgot to lower the pantograph, the case where the pantograph is forcibly lowered has been explained. However, when the pantograph leaves without being lowered (the crew did not press the pantograph lowering button). In the case of an alarm). In addition, the fact that the pantograph departs without being lowered can be transmitted to the emergency stop circuit to take measures such as emergency stop.

FIG. 4 is a flowchart showing an example of control according to another embodiment of the present invention.
FIG. 5A is a diagram for explaining the position of the tag in the example of FIG. 4, and FIG. 5B is a table for explaining the operation of each pantograph in the example of FIG.
In this example, an example of an operation when a train enters the overhead line section from the overhead line section, travels by overhead line current collection, and then exits to the overhead line section is shown. As shown in FIG. 5A, the first (entrance) utility pole of the overhead wire section is provided with an entrance tag, and the last (exit) post is provided with an exit tag. The entrance tag includes information indicating that it is an overhead line section entrance. The exit tag includes information indicating that it is an overhead line section exit.

First, the operation of each pantograph in this example will be described with reference to FIG.
When the entrance tag is read, the entrance flag is set to 1 and the exit flag is set to 0. When the exit tag is read, the entrance flag is set to 0 and the exit flag is set to 1. When the entrance flag is 1 and the exit flag is 0, the charging pantograph is locked and the traveling pantograph is unlocked. When the entrance flag is 1 and the exit flag is 1, when the entrance flag is 0 and the exit flag is 1, and when the entrance flag is 0 and the exit flag is 0, both pantographs are locked.

The flowchart will be described with reference to FIG.
Both the pantograph for charging and the pantograph for traveling enter the overhead line section in a lowered state. Then, in S21, it is determined whether or not the entrance flag is 1. If the entrance flag is 1 and the exit flag is 0, unlocking of the traveling pantograph is permitted. Specifically, the excitation circuit contact of the traveling pantograph lift relay is configured. At this stage, the mechanical key of the traveling pantograph is not removed. When the entrance flag is 1 in S21, the process proceeds to S22 and the unlocking of the traveling pantograph is permitted. If the entrance flag is not 1 in S1, the process proceeds to S23, returns to S21, and repeats until the entrance flag becomes 1.

  Next, in S24, it is determined whether or not the exit flag is 1. If the exit flag is not 1, it indicates that the vehicle is in the overhead line section, and the crew member determines that the vehicle has entered the overhead line section, and then presses the traveling pantograph ascent button. When the entrance flag is 1 and the exit flag is 0, the travel pantograph lift button is enabled by configuring an excitation circuit for the travel pantograph lift relay. When the button is pressed, release of the mechanical key of the traveling pantograph is permitted.

  Next, in S25, it is determined whether or not the traveling pantograph up button has been pressed. If it is not determined in S25 that the button has been pressed, the process proceeds to S26, returns to S24, and repeats until the button is pressed. If it is determined in S25 that the button has been pressed, the process proceeds to S27, where the mechanical key is released and the traveling pantograph is raised. Thereafter, in S28, after the on-board power converter (power converter that performs battery charging or charging / discharging) confirms the voltage, the charging operation is started. For example, the charging operation is started when the voltage of the charging overhead wire is within a predetermined range (for example, DC 500V or more and 900V or less). Here, a charge start button may be provided separately. In this case, charging is started when the crew member presses the charging start button.

In S29, it is determined whether or not the charge end button has been pressed. If not, the process proceeds to S30 to determine whether a predetermined time has elapsed since the start of charging. The predetermined time is the time when the amount of charge determined from the current value and voltage value is reached on the power converter side, and charging is automatically terminated when this time is exceeded.
If the predetermined time has not elapsed in S30, the process proceeds to S31 and the operations from S29 are repeated.

  When the charge end button is pressed in S29 or when a predetermined time has elapsed in S30, the charge is ended in S32. After charging, the crew member presses the travel pantograph lowering button when approaching the exit of the overhead line section. Accordingly, the process proceeds to S33, and it is determined whether or not the charging pantograph lowering button has been pressed. If it is determined in S33 that the button has been pressed, the process proceeds to S34, the pantograph lowering relay for driving is excited, and the process proceeds to S35, where the pantograph is lowered, and then a mechanical key is applied. At this point, the traveling pantograph raising relay excitation circuit remains configured. If the travel pantograph lowering button is not pressed in S33, the process returns to S29 and repeats until the button is pressed.

  Thereafter, in S24, it is determined whether or not the exit flag is 1. If the exit flag is 1, the process proceeds to S36 where the traveling pantograph is locked. Specifically, the excitation circuit of the traveling pantograph lift relay is not configured, and unlocking of the charging pantograph is not permitted.

  If the crew member has forgotten to press the pantograph lowering button for traveling in S33 and the exit flag is 1, the driving pantograph lowering relay is energized in S37, and the pantograph is lowered in S38 and then mechanically moved. It takes a key. At this point, the traveling pantograph raising relay excitation circuit remains configured. Thereafter, the process proceeds to S36, where the traveling pantograph is locked (the exciting circuit of the traveling pantograph ascending relay is not configured, and unlocking of the traveling pantograph is not permitted).

  Also in this example, when the train leaves from the overhead line section to the non-overhead section, even if the crew member has forgotten to lower the traveling pantograph, the traveling pantograph is controlled to be lowered when the overhead line section exit is reached.

  In this example, the crew member visually confirmed that the exit of the overhead line section was approached after the end of charging, but the overhead line section exit that informs the utility pole in front of the overhead line section exit that the overhead line section exit is near A notice tag (see FIG. 5A) may be provided for determination.

6A and 6B are diagrams illustrating an example of control according to another embodiment of the present invention. FIG. 6A is a diagram for explaining the position of a tag, and FIG. 6B is a flowchart.
In this example, when a train enters a charging station or an overhead line section (in this example, an overhead line section) from a non-overhead section, the operation when either the charging pantograph or the traveling pantograph remains elevated due to some abnormality An example is shown.

  In this example, as shown in FIG. 6 (A), in addition to the overhead line section entrance tag and the overhead line section exit tag, an entrance notice tag is provided on the utility pole in front of the overhead line section. The entrance notice tag includes information indicating that the entrance of the overhead line section is close. The entrance tag includes information indicating that it is an overhead line section entrance, and the exit tag includes information indicating that it is an overhead line section exit.

A flowchart will be described with reference to FIG.
First, in S41, it is determined whether or not the entrance notice flag is 1. If the entrance notice flag is not 1, it indicates that the overhead section (or charging station) has not been approached yet. When the crew member visually confirms that the overhead line section (or charging station) is approaching, the crew presses both pantograph lowering buttons for safety. In step S42, it is determined whether the pantograph lowering button has been pressed. If it is determined in S42 that the button has been pressed, the process proceeds to S43 to excite the charging pantograph lowering relay and the traveling pantograph lowering relay, and in S44, both pantographs are lowered and a mechanical key is applied. At this point, the traveling pantograph raising relay excitation circuit and the charging pantograph raising relay excitation circuit are configured.
If the lowering button is not pressed in S42, the process from S41 is repeated after proceeding to S45.

  Then, it returns to S41 and it is determined whether the entrance notice flag is 1. If the entrance notice flag is 1, the process proceeds to S46 and the pantograph is locked. Specifically, the excitation circuit of the pantograph raising relay is not configured, and unlocking of the charging pantograph is not permitted.

  If the crew member does not press the pantograph lowering button in S42 and the entrance notice flag is 1, the pantograph lowering relay is energized in S47, and the mechanical key is applied after the pantograph is lowered in S48. . At this point, the pantograph raising relay excitation circuit remains configured. Thereafter, the process proceeds to S46, where the pantograph is locked (the excitation circuit of the pantograph ascending relay is not configured, and unlocking of the pantograph is not permitted).

  The crew cannot recognize that both or one of the pantographs has entered the overhead section while being lifted. Therefore, as in this example, even when both or one of the pantographs enter the overhead line section while being lifted, when reaching the entrance of the same section, both pantographs are controlled to descend.

A pantograph malfunction prevention device described below may be provided as a countermeasure when entering a stop or a charging station while the pantograph is elevated.
FIG. 7 is a diagram schematically showing a configuration of a pantograph malfunction preventing apparatus according to another embodiment of the present invention.
This example shows a stop (charging station), and a charging overhead line CC is provided between the power poles at the entrance and exit of the stop. As shown in the figure, both ends E1 and E2 of the charging overhead line CC are warped upward in a bow shape. By adopting such a shape, for example, when the pantograph 1 for traveling enters the stop with being raised, the pantograph 1 first hits the curved portion E1 along the upward direction, and is pushed and lowered as it is along the overhead line. Enter the stop.

Furthermore, as a countermeasure when entering the overhead line section or the charging stop while the pantograph is elevated, a pantograph rising detection device can be provided on the utility pole or the column in front of the entrance notice tag of the overhead line section or the charging stop.
FIG. 8A is a diagram for explaining the position of the tag, and FIG. 8B is a table for explaining the operation of each pantograph.
In this example, an entrance notice tag is installed in the utility pole in front of the overhead line section, and a pantograph rising detection device is provided in the utility pole in front of the utility pole. This pantograph rise detection device is a device capable of detecting a raised pantograph, and detects an object passing through a position where the pantograph is raised. When the pantograph rise is detected by this device, the pantograph rise flag in the information message in the entrance notice tag is rewritten to 1. The pantograph rising flag becomes 1 on the train side when the entrance notice tag passes. It should be noted that the pantograph rising flag in the entrance notice tag becomes 0 after a certain period of time (a value that allows a margin for the time required for passing the train). Therefore, as a premise, transmission from the pantograph rising detection device to the entrance notice tag is required.

With reference to FIG. 8 (B), the operation | movement of each pantograph in the unwired section until it reaches an entrance tag when the pantograph rise detection device is provided on the ground side will be described.
If the entrance notice flag is 0 and the pantograph rise detection flag is 0, the vehicle has not reached the entrance notice tag and does nothing. When the entrance notice flag becomes 1 and the pantograph rise detection flag remains 0, the charging pantograph and the traveling pantograph are in the lowered state and are locked for safety. When the entrance notice flag is 1 and the pantograph rise detection flag is 1, the charging pantograph and the traveling pantograph are lowered and locked. When the entrance notice flag is 0 and the pantograph rise detection flag is 1, the charging pantograph and the traveling pantograph are lowered and locked. In this case, since the entrance notice does not change even though the entrance notice tag has been reached, it is necessary to separately check the information on the entrance notice tag. Note that the entrance notice flag and the pantograph rise detection flag are reset to 0 when the entrance flag becomes 1.

A pantograph rise detection device can also be provided on the vehicle.
FIGS. 11A and 11B are diagrams schematically showing a configuration of a pantograph rise detection device provided on the vehicle. FIG. 11A shows a time when the pantograph is lowered, and FIG. 11B shows a time when the pantograph is raised.
In the pantograph rise detection device of this example, the COMBAT interrogator q is mounted on the roof of the vehicle, and the rise of the pantograph is detected using this interrogator. The lower frame tube P1 of the pantograph P is provided with a tag T. The tag T includes information indicating that the pantograph P is descending. As shown in FIG. 11A, when the pantograph P is lowered to a position where the tag T faces the interrogator Q, the interrogator Q reads that the pantograph P is lowered from the tag T. On the other hand, when the pantograph P is rising, communication between the tag T and the interrogator Q is not established as shown in FIG.

  In this case, the same operation as described above is performed using the pantograph rising flag when passing the entrance notice tag.

  In the example shown above, the overhead wire section, the non-overhead wire section, and the entrance and exit of the charging station are reversed depending on the traveling direction of the vehicle. However, the tags provided at each entrance and exit are the same. Therefore, the entrance / exit is determined from the state transition based on the traveling direction of the vehicle (information from the destination indicator), and from the state transition on the vehicle side based on the tag unique number or distance information written in the tag. It can be read by discrimination.

  Also, when the charging station is at the end of the track and is turned back, the entrance flag and the exit flag are replaced.

It is a figure explaining the concept of the pantograph malfunction prevention method of this invention. It is a flowchart which shows an example of the control which concerns on embodiment of this invention. It is a table | surface explaining the operation | movement of each pantograph in the example of FIG. It is a flowchart which shows an example of the control which concerns on other embodiment of this invention. FIG. 5A is a diagram for explaining the position of the tag in the example of FIG. 4, and FIG. 5B is a table for explaining the operation of each pantograph in the example of FIG. It is a figure which shows an example of the control which concerns on other embodiment of this invention, FIG. 6 (A) is a figure explaining the position of a tag, FIG.6 (B) is a flowchart. It is a figure which shows typically the structure of the pantograph malfunction prevention apparatus which concerns on other embodiment of this invention. FIG. 8A is a diagram for explaining the position of the tag, and FIG. 8B is a table for explaining the operation of each pantograph. It is a figure explaining an example of the structure of an overhead wire / battery hybrid vehicle. It is a figure which shows an example of the apparatus structure of COMBAT. It is a figure which shows typically the structure of the pantograph raise detection apparatus provided on the vehicle, FIG. 11 (A) shows the time of a pantograph fall, FIG. 11 (B) shows the time of a pantograph rise.

1 Pantograph for traveling 3 Pantograph for charging 5 Mechanical key 7 Interrogator

Claims (6)

It is a device that receives a power supply from an overhead line in a section with an overhead line, and prevents a pantograph malfunction in an overhead line / battery hybrid vehicle that can travel using on-vehicle battery stored power in a section without an overhead line,
Position information acquisition means for obtaining position information of a section traveling in the present or future;
Means for determining whether the section position is a section with overhead lines or a section without overhead lines;
Control means for controlling the raising and lowering of the pantograph according to the judgment of the judgment means;
Including
The pantograph for an overhead wire / battery hybrid vehicle, wherein the control means controls the pantograph to be lowered and locked when it reaches the entrance of the charging station or overhead line section while the pantograph is raised. Malfunction prevention device. When the pantograph exits the charging station and / or overhead wire section without lowered, said control means, overhead line-of claim 1, wherein the controller controls to lock descends the pan motor graph Pantograph malfunction prevention device for battery hybrid vehicle. A pantograph rising detection device is further provided on the ground or on the vehicle,
3. The apparatus for preventing malfunction of pantograph in an overhead wire / battery hybrid vehicle according to claim 1 , wherein when the rise of the pantograph is detected in a non-overhead section, the control means lowers and locks the pantograph. In a section with an overhead line, a power supply is received from the overhead line, and in a section without an overhead line, a method of preventing a malfunction of a pantograph in an overhead line / battery hybrid vehicle that can run using on-vehicle battery stored power,
Obtain location information for the current or future section
Determine whether the section location is a section with overhead lines or a section without overhead lines,
Controlling the raising and lowering of the pantograph according to the determination of the determining means;
A method for preventing a pantograph malfunction of an overhead wire / battery hybrid vehicle, wherein the pantograph is controlled to descend and lock when reaching the charging station or before the entrance of the overhead wire section while the pantograph is elevated. When the pantograph exits the charging station and / or overhead wire section without lowered, the overhead line battery hybrid vehicle according to claim 4, wherein the controller controls so as to lock it down the pan motor graph pantograph How to prevent malfunction. A pantograph rising detection device is further provided on the ground or on the vehicle,
6. The method for preventing malfunction of a pantograph in an overhead wire / battery hybrid vehicle according to claim 4 , wherein when the rise of the pantograph is detected in a non-overhead section, the pantograph is lowered and locked.

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