JPH01298906A - Travel control system for vehicle - Google Patents

Abstract

PURPOSE:To shorten an arriving time without accelerating the maximum speed of a vehicle by transmitting the zone length of a block section to the controller of the vehicle by transmitting means from the ground to the vehicle. CONSTITUTION:When a vehicle enters each block section, a block section length is transmitted from the ground to the vehicle beforehand. A controller of the vehicle operates an ATC brake at optimum ground points 7', 8', 9', 10', 11', 12' on the basis of an ATC speed signal to be transmitted and the section length in the section. Thus, its arriving time can be shortened without accelerating the maximum speed of the vehicle.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a vehicle travel control device, and in particular, a system for performing optimal travel control from the viewpoint of arrival time. [Prior Art] Conventional technology The train is operated manually by the driver or by the automatic train control system, depending on the signal corresponding to the blocked section of the track, so that the operating speed is set to the speed allowed by the signal. (hereinafter referred to as ATC
), and it was common to control the speed with a margin for the length of the blocked section.

A conventional travel control system will be explained below with reference to FIG.

Figure 1 shows a running curve when stopping at a station using ATC. Conventional travel control will be explained with reference to this diagram.

In Figure 1, the front of the vehicle is the stop limit sign 6 of section 5.
It shall be stopped before. The signal display at this time is 210 signal for section 1, 160 signal for section 2, and °1 signal for section 3.
It is assumed that the 0 signal, the 30 signal in section 4, and the absolute stop signal in section 5 are displayed.The vehicle in figure 0 has a speed of approximately 2101u.
When the vehicle enters section 2 at a speed of 2/h, the ATC brake is activated at 7 in the figure, and at 8 in the figure, when the vehicle speed drops below 160 mph, the brake is released and the vehicle continues to section 3. Vehicle is in section 3
When the vehicle enters the area, the ATC brake is activated at 9 in the figure, and the brake is released at 10 in the figure when the vehicle speed drops to 70+w/h, and the vehicle continues to section 4. When the vehicle enters section 4, the ATC brake is activated at 11 in the diagram, and the vehicle speed decreases to 3.
Remission occurs at 12 in the figure below 0 km/h. After this, the driver performs a check and stops the vehicle at a predetermined position using the manual brake.

[Problem to be solved by the invention]

The minimum value of the length of the blocked section is determined based on the deceleration distance of the vehicle, etc., but it is not a constant value and usually varies depending on the geographical conditions of the track, the density of trains, etc. Therefore, if the length of the blocked section is longer than the required braking distance, there is a margin of distance from when the predetermined speed is reached to the end point of the blocked section. Explaining based on FIG. 1, in this conventional travel control, the ATC brake is activated immediately when the vehicle enters a blocked section with a signal lower than the vehicle speed, so for example, in section 2 in the figure, the speed is 160 km at the end of the section. It would be fine as long as the speed was 1'1m before, but at 8 in the diagram, the speed would be less than 160 km+/h.

Furthermore, when the length of the blockage section is not constant, it is possible to shorten the arrival time by obtaining the length of each blockage section and controlling the travel. It is revealed in ``Speed Management Device''. However, in order to perform this travel control, for example, by storing the length of each blockage section in the vehicle's control device,
Performing operations by the vehicle alone, such as determining the length of the blocked section in which the vehicle is traveling, by calculating the distance of the control device, is not sufficient to ensure driving safety, and is an obstacle to realizing this travel control method. It had become.

[Means to solve the problem]

The present invention uses transmission means from the ground to the vehicle to increase reliability by allowing the vehicle control device to obtain the section length of each blocked section, and uses the section length of each of the above-mentioned blocked sections to At the end of the section, the vehicle travels at a constant speed or at a slow speed until the distance required to match the traffic signal, and then brakes are applied, thereby reducing the time it takes to reach the destination compared to conventional methods.

〔Example〕

An embodiment of the present invention will be described based on FIG. 2.

When a vehicle enters each blocked section, the section length of the blocked section is transmitted from the ground to the vehicle before it enters the section.
A at 7゜ in the diagram, just the ATC brake distance before the end point of
It is possible to activate the TC brake. Similarly, in section 3, AT is at 9" in the figure, and in section 4, AT is at 11° in the figure.
The C brake can be activated. Looking at the reduction in arrival time in this case, it is clearly shorter than in the case of Figure 2, but for example in section 3 it is 3.63.6 for It3-300m, which is also the case in section 0 3.4. Since it is possible to shorten the arrival time, the present invention can achieve an effect comparable to that of increasing the maximum speed.

Next, as a specific embodiment of the transmission means from the ground to the vehicle according to the present invention, a case where a transponder is used as a means for transmitting multiple information from the ground to the vehicle will be described with reference to FIG. Transponders are already in practical use at places such as Kyoto Station on the Tokaido Main Line as a means of transmitting the distance to a stopping point from the ground to a vehicle. Reference numeral 15 in FIG. 3 denotes a beacon with or without power, which sends the section length of the next blocked section to the onboard control device 18 via the onboard section 16 and receiver 17. The on-board control device performs travel control using this closed section length.

As another embodiment of the transmission means from the ground to the train of the present invention, another method for understanding the information transmitted from the ground to the train and the length of the blocked section on the train is to place a beacon in front of the stop station. Figure 4 shows the case where the number of blocked sections up to the stopping station and the section length of each blocked section are transmitted. It is also possible to transmit the information.

As another example, the length of each blocked section of the running line section is stored in advance in the vehicle control device, only the station name code is transmitted from the beacon, and the station code and the stored contents are stored in the vehicle control device. It is also possible to understand the section length of the blocked section in which the vehicle is traveling. In addition to transponders as a means of transmitting information from the ground to the vehicle, it is also possible to transmit light through space by means of LCX, or if transmission is performed only at a fixed point such as a station.

〔Effect of the invention〕

According to the present invention, by taking advantage of recent advances in electronic technology and digital communication technology, it is possible to shorten the arrival time without increasing the maximum speed of the vehicle.

[Brief explanation of the drawing]

Fig. 1 is a travel control diagram when stopping at a station using conventional ATC, and Fig. 2 is a running control diagram when the vehicle stops at a station using the conventional ATC system. Figure 3 is a plotter diagram illustrating the transmission from the ground to the vehicle according to the present invention, and Figure 4 is a diagram showing the vehicle running at a constant speed or diagonally before applying the brakes. FIG. 2 is an explanatory diagram of the case where the number of sections and the section length are transmitted from the ground to the vehicle. 6...stop traffic light, 7,7゛...brake start point for section 2, 8,8゛...start point between the lines in section 2, 9,9゛...brake start point for section 3, 10 .10'Start point of interval between lines in section 3, 11.11'...Start point of brake in interval 4, 12.12°...Start point of interval between lines in section 4, 15...
・Ground element, 16... Onboard element, 17... Receiver, 18
...Onboard control device, 19 vehicles, 20... Station stopping point. Patent applicant: Railway Technology Research Institute Figure 1 Figure 2

Claims (1)

[Claims] 1. In a vehicle running on a track divided into blocked sections, the ground and the vehicle are equipped with a means for transmitting data from the ground to the vehicle, and a beacon is placed in front of the blocked section on the ground, and the vehicle is placed on top of this beacon. By transmitting the section length of the next blocked section to be entered from the ground to the vehicle when the vehicle passes, or by placing a beacon in front of the stop station, when the vehicle passes this beacon, the vehicle By transmitting the number of blocked sections up to the stopping station and the section length of each blocked section, or when the vehicle is stopped at a station, the number of blocked sections up to the next stopping station and the length of each blocked section can be transmitted from the ground to the vehicle. By transmitting the length of the blocked section that the vehicle is entering, the length of the blocked section that the vehicle is entering is grasped on the vehicle, and this blocked section length is used to adjust the speed to match the signal at the end of the blocked section that the vehicle is traveling on. A vehicle driving control system that applies the brakes after driving at a constant speed or at a slow speed to a point in front of you the required distance.