JPS6130902A - Transporting apparatus - Google Patents

Abstract

PURPOSE:To simplify and to reduce the weight of a vehicle by disposing only a propulsion power device having a current collector for receiving power from a trolley wire, a motor, gears and wheels in the vehicle. CONSTITUTION:A plurality of power supply zones are provided along rails 16, and power supply lines 22a, 22b are disposed in the respective zones. Simultaneously, power devices 21a, 21b which are variable in the supply power to vehicles in every zone are disposed on the ground. A vehicle 17 has only a propulsion power device having a current collector 23 for receiving power from the lines 22, a motor 19 with a reduction gear, wheels 18. Logic units 24a, 24b provided in the respective zones are disposed on the ground to apply commands to the power devices 21 to vary the supply power to the vehicle 17.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a transportation device using an electric vehicle that runs on its own along a track, and particularly to a transportation device that is effective on elevated tracks.

(Prior Art) In a transportation device using an electric vehicle that runs on its own along a track, it is desired that the structure of the vehicle be simplified and lightened in order to reduce the cost of construction. Particularly in the case of elevated tracks, in order to reduce the cost of the structure, it is desirable to reduce the weight of the vehicles in order to reduce the load on the tracks, and this is even more desirable for lightweight elevated structures such as Morrail, which aim to reduce the cost of construction. Furthermore, reducing the weight of vehicles directly leads to energy conservation, and the demand for weight reduction increases as the unit cost of energy increases. Furthermore, the simplification of the structure of the vehicle reduces maintenance costs, improves functional reliability, and provides many operational advantages. In most transportation devices that have been put into practical use, electric vehicles make judgments to protect against rear-end collisions and operate according to the required driving program, such as ``departure'' and ``acceleration''.
It has devices that manually or automatically control the speed to maintain, decelerate, stop, etc., a power device that controls power, and a propulsion power device consisting of motors, gears, wheels, etc., and receives power from a current collector. The system controls a certain amount of electric power, allowing the vehicle to run on its own. Efforts are being made to reduce the weight of each of these on-vehicle devices, but it is difficult to achieve significant weight reduction.

1. Conventional Example 1 - In order to deal with the above problem, it has been proposed in Japanese Patent Application Laid-Open No. 59-23736 to install a power device on the ground instead of installing it on the vehicle. The part that controls driving and makes decisions and commands such as protecting against rear-end collisions and driving according to the program (a part that makes logical decisions including the driver, a communication part that transmits commands to the ground based on operations, etc.) is left on the car.

-Conventional Example 2- As an example of a train with fewer on-board equipment, there have been commercially available toys and model railways exhibited to the public for a long time. All that is onboard for vehicle propulsion is a propulsion power unit consisting of a motor, gears, and wheels, and a current collector.On the ground, there are electrical devices such as tapped transformers that can change the voltage.
With the exception of some parts that are automated, the human brain is used as a logical device while observing the vehicle's driving conditions and surroundings, and the vehicle's running is controlled by manually operating the taps of the transformer, which is the electric power device.

1. Conventional Example 3 - In the proposal by Japanese Patent Publication No. 58-2J270, the propulsion power unit, its electric power unit, and the logic device for operating them are all installed on the ground, and are not mounted on a vehicle. Therefore, although this is close to ideal in terms of simplifying and reducing the weight of the vehicle, it has a structure in which the propulsion power unit is installed along the entire length of the track.

(Problem to be Solved by the Invention) In Conventional Case 1, assuming that the driver makes logical decisions, the weight of the driver is 50 to 60 mm plus +r, which is the load borne by the vehicle, and if the driver is replaced by a machine, the same or Equipment that weighs more than that must be mounted on the vehicle, and communication equipment that transmits commands to the ground must also be mounted on the vehicle, making it insufficient to simplify and reduce the weight of the vehicle.

In Conventional Example 2, humans make decisions and operate the vehicle while looking at the vehicle's driving situation and surrounding conditions, and in a practical transportation device that requires multiple vehicles to travel simultaneously, the system efficiently follows the driving program and protects against rear-end collisions. , and cannot enable safe operation that matches the track conditions.

In Conventional Example 3, since the propulsion power device is arranged over the entire length of the track, the load on the track due to the weight of this device increases, and the construction cost of the elevated structure increases.

The impact is particularly large on light tracks.

The present invention solves the problems in each of the conventional examples, sufficiently simplifies and reduces the weight of the vehicle, maintains safe running of the vehicle, and
A transportation device that enables efficient operation according to the operation program, enables smooth running at the power supply boundary, and does not increase the load on the track by placing something such as a propulsion power unit on the track. The purpose is to serve as an offering.

(Means for Solving the Problems) The present invention has a track and a vehicle that runs on the track, a power device that can supply variable power to the vehicle is installed on the ground, and the electric power is supplied along the track. In transportation equipment in which the power supply line that supplies power from the equipment to the vehicle is divided into multiple power supply sections, only the current collector and propulsion power unit that receive power from the power supply line among the equipment involved in vehicle propulsion are installed. A logic device is installed on the ground, and the logic device is configured to change the power supplied to the vehicle by the power device according to a command from the logic device, and the power device itself is It is possible to control the running of the vehicle that does not have a control HI function. In this case, the logic device receives information from a detection means that detects the position or position and speed of the vehicle to be controlled and the vehicle in front of the vehicle, and takes into account track conditions such as the opening and closing of branching devices. It has a logic that maintains the safety of the vehicle guiding rod, and has preset "route", "departure", and "acceleration".
A control means that controls according to all or part of the basic operation program such as "maintain speed", "deceleration", "stop", etc., and automatically or manually intervenes depending on the transportation situation and interrupts the control by the control means. It has a means to change the control to correspond to the driving program and controls the running of the vehicle. In addition, when driving continuously across the power supply boundary from the power supply section where the vehicle to be controlled exists to the power supply section in front, the power device that supplies power to the power supply section where the vehicle to be controlled exists and the power supply section in front. By having a means for giving commands based on the same logic as the electric power device, safe running of the vehicle can be maintained, efficient operation according to the driving program, and smooth running of the power supply boundary can also be achieved. As mentioned above, since the power equipment is installed on the ground and the logic equipment is placed on the ground, there is no need to arrange heavy equipment along the track, and the load on the track can be reduced. The detection means is composed of a plurality of detection functional elements, some of which are installed on the vehicle and the others on the ground, thereby reducing the increase in vehicle weight due to the detection means, and reducing the transmission line of the detection information of the detection means. The sensing means can also be placed in series along the track to receive the logic device.

(Description of Embodiments) First, a track and a vehicle, which are an example of a transportation device that is particularly effective when implementing the present invention, will be described with reference to FIGS. 2 to 4. Figure 2 is a side view showing a track and a vehicle suspended from the track.The track structure is extremely lightweight, with the rail 2 that suspends the vehicle 1 supported by struts 5 via hangers 3 and cables 4. It has the advantage of allowing a large span (L). This is an effective transportation device when crossing rivers, lakes, canyons, etc. is required. FIG. 3 is a cross-sectional view of FIG. 2, showing an example of a double track with one track on each side of the support. FIG. 4 is a cross-sectional view showing details of one vehicle on one track, which has an inverted T-shaped bracket 6 between the rail 2 and the hanger 3. The wheels 7 rolling on the rail 2 are supported by a reduction geared motor 8, and the wheels 7 and the reduction geared motor 8 provided on the left and right sides are integrally connected by a frame 9, and the vehicle body 10 is connected to the frame 9. is supported in suspension.

If the vehicle is for a passenger, a seat 11 is provided.

A power supply line 12 is provided on the track side, and a current collector 13 is provided on the vehicle side, so that electric power for driving the motor 8 can be received from the ground. An information transmission line 14 is provided continuously on the track side, and an antenna 15 is provided on the vehicle side, so that mainly information regarding the position of the vehicle or the position and speed of the vehicle is transmitted to the ground.

FIG. 1 is an explanatory schematic diagram showing one embodiment of the present invention.
6, a vehicle 17 is supported by wheels 18.1B',
One wheel 18 is driven by a motor 19. motor 19
The motor is equipped with a reduction gear and is further equipped with a brake 20 that is applied by spring force when the motor power is cut off. In this way, the vehicle has a structure in which when electric power is supplied, the brakes are loosened and the motor 19 drives the wheels 18 and the vehicle moves by itself. A plurality of power supply sections are provided along the track 16, and power supply lines 22a, 22b, . , 21b... are installed on the ground, and power from the power devices 21a, 21b... is supplied to the power supply vA22a, 22b..., respectively along the orbit. Among the devices involved in vehicle propulsion, a current collector 23 that receives power from the power supply line 22 and a motor 19 with a reduction gear,
Only a propulsion power device (including a circuit protection device in case of an electrical accident such as a short circuit) consisting of wheels 18 and the like is arranged in the vehicle 17. Logic devices 24a and 2 provided for each power supply section
4b... is placed on the ground, and the logic devices 24a, 2
The commands of 4b... are the arrows 25a, 25b...
...Electricity bag 71211 as shown! = transmitted, vehicle 1
7 is configured to change the power supplied to it. The logical devices 24a, 24b, . Information about the position and speed of the vehicle 17 is received from the respective detection means via the logical device transmitting/receiving section 26a, and information about the position and speed of the vehicle ahead of the vehicle 17 shown by the arrow 27 in the traveling direction of the vehicle 17 to be controlled is received. From the detection means to the logical device transmitting/receiving section 26b or further forward logical device transmitting/receiving section and communication lines 28a, 28b...
AT
It has the same logic as the known example called C device, and consists of all or part of the preset "route", "departure", "acceleration", "maintained speed", "deceleration", "stop", etc. The vehicle is equipped with a control means for controlling according to the basic operation program, and a means for automatically or manually intervening from the operation command center 29 depending on the transportation situation to change the control by the control means to control corresponding to the interrupt operation program. Control driving. The logic device then controls the vehicle 1 to be controlled.
When the vehicle 17 continues to run from the power supply section where the power supply line 22a exists, that is, the power supply section having the power supply line 22a, through the power supply boundary 30 to the power supply section in front, the vehicle 17 to be controlled
The logic device 2 is configured so that the power supply to the power supply section in which the existing power supply section exists and the power supply to the preceding power supply section are controlled by commands based on the same logic.
4a is configured to be transmitted to the logic device 24b via the communication &l 128.

The detection means is composed of a plurality of functional elements, and has a tuned circuit with a constant frequency F1 as a part thereof, and detects the presence of a vehicle. A position detection means consisting of an antenna 31 as a functional element is provided. Further, the pulse generator 32, the transmitter 33, and the antenna 34, which are driven and rotated by the wheels 18', constitute a vehicle speed detection means, and transmit pulses proportional to the vehicle speed.

In order to transmit signals from the antennas 31, 34, transmission lines 35a, 35b, . 35a, 35b, . . . , respectively.

FIG. 5 shows an embodiment of the transmission line, where A indicates the substance of the transmission line, and its structure is a conventionally well-known twisted loop line. This is connected to the ground logical device transmitting/receiving section 26a.
, 26b, . . . are transmitting alternating current electricity with a frequency of F2. When the antenna 31 having a tuning circuit of Fl is coupled to the stranded loop due to the presence of a vehicle, the frequency F2 of the transmitted alternating current electricity is attracted to Fl and fluctuates. Logical device transmitting/receiving units 26a, 26b...
By understanding this fluctuation, it is possible to obtain a pulse as shown in FIG. 5B. In the figure, the horizontal axis indicates distance, and by counting the number of pulses, it is possible to know where the vehicle is located on the transmission line. Note that when the antenna 31 is at the twisting point of the twisting loop, the antenna 3
Since the connection of 1 becomes invalid, a pulse is generated for each twisting point. The interval between pulses corresponds to the twisting pitch of the transmission line, and the speed of the vehicle can be obtained by measuring the time between pulses. However, in this embodiment, speed detection using the pulses is not performed, and the antenna 34 transmits fine pulses as shown in FIG. 5C. This is connected to the transmission line and logic device transmitting/receiving sections 26a, 26b...
... via logical devices 2.1a, 24b...
The speed of the vehicle is detected by counting the number of pulses per hour. Each power device 21a, 21b
Electric power is supplied from a substation 36 to the substation 36. The electric power generated when the wheels 1B' of the vehicle 17 drive the electric power generated is used for the on-vehicle lighting 39, the broadcasting device 40, and other auxiliary equipment via the floating charging battery 38. These auxiliary devices are controlled via an antenna 41 and a transceiver 42. The logic devices 24a, 24b, . . . are also provided with programs and logic related to controlling such auxiliary equipment. Deceleration is naturally necessary to drive the vehicle, and even at this time, the logic device commands control the motor 19 to generate power and generate a regenerative brake that returns the power to the substation 36.

The traveling of a vehicle in the transportation device having the configuration shown in FIG. 1 will be explained as an example. When the opening of the preset track path for the vehicle to proceed is confirmed, and the preset time arrives, the transportation device issues a command to start the power device. When the vehicle is started, the vehicle is accelerated, and the logic device issues a command so that the electric power generates a propulsive force that achieves a predetermined high acceleration that is permissible in terms of ride comfort. At this time, the speed is obtained from the pulse transmitted from the vehicle, the actual acceleration is obtained by differentiating it, and the value is compared with a preset acceleration to perform feedback control to correct the command. When the vehicle continues to accelerate and recognizes through pulses from the vehicle that it has reached the preset maximum speed in that section, the "maintain speed," it issues a command to generate electric power that generates a propulsive force equal to the vehicle's running resistance. emanate. At this time as well, feedback control is used to compare the actual speed and the set speed. As the vehicle progresses and reaches a predetermined deceleration zone for stopping, the logic device absorbs power to generate a braking force that achieves a high deceleration that is permissible for the predetermined ride comfort, similar to when accelerating. issue a command to do so.

At this time, the actual deceleration and the set deceleration are also compared, but the actual speed is also compared with the speed at which the vehicle should be based on the relationship between the stop position and the vehicle's existing position, and the deceleration section is set so that the vehicle stops at the predetermined position. Feedback control is performed during the operation. The above is driving according to the basic driving program, but in addition, if the driving situation is such that passengers are having trouble boarding and alighting, interventions such as suspending departure can be made manually by recognizing the situation on the TV monitor at the driving command center. Furthermore, when driving is behind the scheduled time, the driving command center is equipped with logic that commands a higher acceleration than is permissible for ride comfort and automatically corrects the driving program to match the basic driving program. . Alternatively, the command can be made manually.

The power device that receives such a command controls the power from the substation, changes the power to the power corresponding to the command, and supplies the power to the power supply line. The vehicle receives the electric power through the power generator and supplies it to the motor, which then generates torque. The torque of the motor is converted through gears attached to the motor into propulsive force that drives the wheels and propels the vehicle.

In the case of deceleration, the power device acts to generate a reverse torque on the motor, and the motor acts as a generator and power is returned from the power device to the substation. At the final stop, the power device is cut off and the brake attached to the motor is activated by spring force to maintain the stop.

Next, the movement of the power feeding boundary, which is an important effect of the present invention, will be described. Vehicle antenna 31 and twisted loop transmission line 3
From the relationships 5a, 35b..., the location of the vehicle can be recognized by counting the number of pulses with the logic device, and the pulses from the pulse generator of the vehicle are transmitted to the logic device from the transmission line and within a certain period of time. The speed is obtained by counting the number of pulses, and this determines the command to the power device. When the vehicle continuously runs on the power supply boundary with the power supply section in front, the command determined as described above is transmitted to the power device of the power supply section in front, and the power supply section in front is also controlled in the same manner. Supply electricity. Therefore, even at the power supply boundary, the vehicle continues to receive the same power supply without interruption and continues to run smoothly.

As is clear from the detailed description of FIG. 5, in the configuration of the embodiment, the means for detecting the position and speed information of the vehicle used in the logic device and the transmission thereof are such that pulses generated in the relationship between the transmission line and the antenna are transmitted. The pulses from the vehicle's pulse generator are transmitted to the logic device via the on-board transmitter, antenna, and transmission line, and are transmitted to the logic device by counting the number of pulses and recognizing the vehicle position. The speed can be obtained by counting the number of pulses within a certain period of time.

(Other Embodiments) FIG. 6 is an explanatory diagram of another embodiment of the present invention, in which one logic device 43 and two power devices 21a, 2
1b is integrated to give commands. Information related to other logical devices is connected to the operation control center via information path 4.
4.

If the length of the command transmission cable from the logic device 43 to the power device 21a or 21b is not very long and the control performance is maintained, there is an advantage that the number of logic devices installed is small and economical. When the scale of the entire logic device is small, it can be centrally installed only in the operation control center.

As another embodiment of the present invention, a first
It is also possible to use a linear motor instead of the rotary motor 19 shown in FIGS. An example thereof is shown in FIG. The primary coil 45 of the linear motor and the wheels 46 supporting it form a linear motor truck, and the primary coil 45 propels the metal track 16 as a reaction rail.

At this time, the electric power received by the vehicle is three-phase AC, with frequency controlled to control speed, voltage controlled to control propulsion,
Each is variable. The power received by the current collector 23 is directly supplied to the primary coil 45.

The wheels 18 have a structure on which a brake 20 acts, and are used for holding the vehicle stopped. The linear motor system has the advantage that the propulsion power device has no rotating parts, has a simple structure, and is easy to maintain, but it is technically difficult to improve general energy efficiency.

It is desirable to take this interest into consideration and decide according to the purpose.

(Effects of the Invention) The present invention can be achieved by arranging only the propulsion power device consisting of a current collector that receives power from a power supply line, a motor, gears, wheels, etc., among the devices involved in vehicle propulsion, in the vehicle. By simplifying and reducing the weight of rolling stock, the weight reduction reduces the cost of elevated track construction and saves energy during operation.The simplification reduces vehicle maintenance costs and improves functional reliability. Effects can be obtained. In addition, the logic device installed on the ground protects against rear-end collisions and has logic that takes track conditions into account, ensuring vehicle running safety.The logic device also has control logic that allows the vehicle to run in accordance with the driving program. This enables efficient operation, and furthermore, by giving commands based on the same logic to the power device that supplies power to the power supply section where the vehicle is located and the power device that supplies power to the power supply section in front of the vehicle, the vehicle This has the effect of allowing smooth travel across power supply boundaries. In addition, although the power equipment is installed on the ground, it does not need to be installed on the elevated track, so there is no need to place heavy objects on the elevated track as in conventional example 3, and the load on the track is reduced. This has the effect of not increasing track construction costs.

[Brief explanation of the drawing]

Figure 1 is a block diagram showing an overview of the control system for vehicle running;
Fig. 2 is a side view showing an example of a transportation device suitable for applying the present invention, Fig. 3 is a front view, Fig. 4 is a sectional view of a vehicle portion, and Fig. 5 is a signal transmission line and a signal emitted therefrom. FIG. 6 is a block diagram similar to FIG. 4 showing another embodiment of the present invention, and FIG. 7 is a block diagram showing yet another embodiment. 16... Track 17... Vehicle 18.
18'...Wheel 19...Motor 2
1a, 21b...Power devices 22a, 22b...Power supply lines 24a, 24b...Logic devices 26a, 26b...Logic device transmitter/receiver 31.3
4...Antenna 32...Pulse generator 33...Transmitter Fig. 3 Fig. 4

Claims (2)

[Claims] (1) It has a track and a vehicle that runs on the track, a power device that can supply variable power to the vehicle is installed on the ground, and a power supply line is installed along the track to feed the power from the power device to the vehicle. In a transportation device that is installed separately in multiple power supply sections, of the devices involved in vehicle propulsion, only the current collector and propulsion power device that receive power from the power supply line are placed on the vehicle.
The logic device includes means for changing the power supplied to the vehicle by the power device; The logic device receives information from a detection means regarding at least the position of a vehicle to be controlled and a vehicle in front of the vehicle; By taking into account track conditions such as the opening and closing of branch devices, the information can be used to calculate the route, departure, acceleration, maintained speed, and
a control means for controlling at least part of deceleration and stop; a means for automatically or manually intervening depending on the transportation situation to change the control by the control means; and a power supply where the vehicle to be controlled exists. When driving continuously across the power supply boundary from one section to the previous power supply section, the power equipment that supplies power to the power supply section where the vehicle to be controlled exists and the power device that supplies power to the power supply section ahead must be given commands based on the same logic. and the detection means includes a plurality of detection function elements, some of which are placed on the vehicle and the others on the ground, and the detection information transmission line of the detection means is continuous along the track. A transportation device characterized by being installed. (2) In the transport device according to the above item 1, the control means of the logical device is configured to receive information from a vehicle to be controlled and a position and speed detection means of a vehicle existing in front of the vehicle. .