JPH0418078Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a warning device for merging vehicles, particularly a device that warns merging vehicles of the presence or absence of a main line vehicle in a merging section between a merging road and a main track. .

[Prior Art] FIG. 5 shows an example of a rampway of a motorway, in which a merging road 100 and a main track 11 are connected.
The merging section 120 with 0 is formed with sufficient margin.

The merging vehicle 200 traveling on the merging road 100 is connected to the main line vehicle 210 traveling from behind.
Visually check the presence and approaching speed of the main track 1.
Join the 10th.

However, it is difficult to sufficiently ensure safety when merging with just visual confirmation of drivers.
In particular, on rampways such as expressways and test courses, the speed of the main line vehicle 210 is extremely high, so the driver of the merging vehicle 200 has to pay attention to the rear for a long time, which places a large mental and physical burden on the driver. There was a problem.

In particular, when the main line vehicle 210 travels at a high speed, rear-end collisions between merging vehicles are likely to occur within the merging section 120 due to the skill level and judgment errors of the drivers of the merging vehicle 200.
There has been a problem in that if careless interruption to 0 is performed, a collision with the main line vehicle 210 or the like may occur.

In order to solve such problems, proposals such as Japanese Patent Publication No. 58-25320 have been made in the past.

FIG. 6 shows a device according to this proposal. According to this device, a traffic light 10 is provided at a predetermined position in the merging section of the merging road 100, and a merging vehicle 200 is made to wait there in advance.

Moreover, on this merging path 100, a plurality of guide lamps 12-1, 12-2, . . . are installed at predetermined intervals from this waiting point to the merging point with the main track 110.

Then, using the speed sensor 14, the main line vehicle 21
0 speed is detected, and the arithmetic processing circuit 16 determines whether the merging vehicle 200 is the main line vehicle 21 based on this detected speed.
0, predicts and calculates the possible time for merging without being obstructed by traffic lights 10, lights up the traffic light 10 in blue, and displays the merging vehicle 2.
Start the 00.

Then, the guide lamps 12-1 and 12-2 are sequentially turned on to guide the merging vehicle 200 towards the main track 110 so that the merging vehicle 210 can merge onto the main track 110 at the predicted time. ing.

[Problems to be solved by the invention] However, in such a conventional device, the traffic light 10
Since the merging vehicles 200 are made to wait each time using the merging road 100, there is a problem that when there are many vehicles 200 entering the merging road 100, the vehicles 200 become congested in front of the traffic light 10, which is not practical. Ta.

In particular, since the number of vehicles 200 entering via the merging road 100 is extremely large on rampways and the like provided on expressways near cities, using such a conventional device will reduce the congestion of merging vehicles 200. The problem was that it was impossible to use the system, especially considering the traffic jams during rush hours in the morning and evening.

[Purpose of the invention] The present invention was devised in view of such conventional problems, and its purpose is to safely and smoothly merge merging vehicles onto the main track without causing unnecessary traffic jams as described above. An object of the present invention is to provide a warning device for merging vehicles that is capable of merging vehicles.

[Means for solving the problem] In order to achieve the above object, the warning device for merging vehicles of the present invention includes: a speed sensor that detects the speed of the main line vehicle entering the merging section; Danger time calculation means for calculating the time when the main line vehicle passes the start point and end point of the merging danger warning section; and when the main line vehicle is traveling in the merging danger warning section, displays a warning message for merging vehicles to merge onto the main track. A display means is provided.

[Operation] With the above configuration, the driver of the merging vehicle can check the presence or absence of a vehicle on the main track based on the merging warning display on the display means, thereby reducing the burden on the driver of checking the main line vehicle. It will be possible to smoothly merge onto the main line without causing traffic congestion on the merging road.

[Example] Next, a preferred example of the present invention will be described based on the drawings.

First Embodiment FIGS. 1 and 2 show a preferred example of a warning device for merging vehicles according to the present invention.

The characteristic feature of the present invention is that based on the running speed of the main line vehicle 210, the time during which the vehicle 210 is passing through a predetermined merging danger warning section is determined, and during this time,
The object is to display a merging warning to the merging vehicle 200.

For this reason, the upstream predetermined position P of the merging section 120
The speed v of the main line vehicle 210 passing through 0 is detected using the speed sensor 20, and the detected speed v is inputted to the dangerous time calculation circuit 22.

The position of P0 is 100 to 200 m from the merging point P1 on an expressway with a speed limit of about 100 km/h.
It is preferable to set it somewhat upstream.

The danger time calculation circuit 22 calculates the danger time for the main line vehicle 210 to pass through the start point Q1 and the end point P2 of the merging danger warning section based on the detected speed v, and calculates the danger time when the main line vehicle 210 passes the start point Q1 and the end point P2 of the merging danger warning section, and calculates the danger time when the main line vehicle 210 passes the start point Q1 and the end point P2 of the merging danger warning section, and calculates the danger time when the main line vehicle 210 passes the start point Q1 and the end point P2 of the merging danger warning section. 24 is formed so as to be displayed by lighting.

In the embodiment, this critical time calculation circuit 22
includes a calculation unit 26 that calculates a critical time, and a control unit 28 that controls on/off of the lamp 24 based on the calculation result.

Then, the calculation unit 26 calculates the optimum inter-vehicle distance M based on the detected speed v, and moves from the position Q1, which is this inter-vehicle distance M before the merging section start point P1, to the merging section end point P3, that is, from Q1 to P2. The section will be set as a merging danger warning section.

Then, based on the following equation, the main line vehicle 210 calculates the times S and E for passing through the danger warning section start point Q1 and end point P2.

S=L2-M/v=L2-K1v/v=L2/v-K1...(1) E=L3/v...(2) L2: Distance from P0 to merging start point P2 (m) M: Optimal inter-vehicle distance (m) K1: Inter-vehicle distance coefficient (sec) L3: Distance from P0 to merging end point P2 (m) The above S and E are not calculated each time.
It is also possible to set the times S and E corresponding to the vehicle speed v in advance and read out the times corresponding to the vehicle speed v each time.

Then, the control unit 28 lights up the warning lamp 24 at the timing when the main line vehicle 210 enters the starting point Q1 of the merging danger warning section, that is, at the timing S, and at the timing when the main line vehicle 210 passes the end point P2 of the merging danger warning section, namely The lamp 24 is controlled to be turned off at timing E.

In this way, according to the present invention, the main line vehicle 2
Based on the traveling speed V of 10, while the vehicle 210 is traveling within the merging danger warning section Q1 to P2, a merging warning display can be displayed to the merging vehicle 200 using the lamp 24.

Therefore, when the lamp 24 is not lit, the merging vehicle 200 can easily check behind and safely merge onto the main track 110, and when the lamp 24 is lit, It is determined that the main line vehicle 210 is running within the danger warning section, the main line vehicle 210 is carefully checked, and it is possible to safely merge onto the main line 110.

Therefore, according to the present invention, the burden on the driver of the merging vehicle 200 is significantly reduced, and it becomes possible to merge onto the main track 110 safely and smoothly.

Second Embodiment FIGS. 3 and 4 show a second preferred embodiment of the present invention.
-2...... are installed at predetermined intervals, and each warning lamp 24
-1, 24-2... A merging danger warning section is set for each merging danger warning section, and while the main line vehicle is traveling in each merging danger warning section, the corresponding warning lamp 24-1, 24-2...
The purpose is to display by lighting...

Therefore, the calculation unit 26 of the embodiment calculates the lighting timing Sn and the lighting timing En of each lamp 24-1, 24-2, . . . based on the following equation.

Sn=Ln−Mn/v=Ln−Knv/v=Ln/v−Kn ……(3) En=Ln1/v ……(4) Ln: Distance from P0 to Pn (m) Mn: Each merging danger Inter-vehicle distance for each warning section (m) Kn: Inter-vehicle distance coefficient for each merging danger warning section (sec) Here, the optimal inter-vehicle distance for each merging danger warning section is determined by merging within the limited merging sections P1 to P5. To make it smooth, M1≧M2≧M3…
It is preferable to set...

Then, the control unit 28 controls on/off of the corresponding lamps 24-1, 24-2, . . . based on the calculation result, and displays a merging warning to the merging vehicle 200.

Therefore, taking the lamp 24-1 as an example,
The lamp 24-1 is turned on at the timing S1 when the main line vehicle 210 passes the danger warning section start point Q1 for the lamp 24-1, and the lamp 24-1 is turned on at the timing E1 when the main line vehicle 210 passes the danger warning section end point P2.
4-1 is controlled off.

Similarly, the lamp 24-2 indicates the starting point of the danger warning section, S1, where the main line vehicle 210 passes through Q2.
It is turned on at the timing of , and the danger warning section end point P
The off control is performed at timing P2 when passing through 3.

In this way, according to the device of this embodiment, each lamp 24-1, 24-2...
The merging vehicle 20 independently displays a merging warning.
0, it becomes possible to smoothly merge into the main track 110 at the optimal position while watching the display on the lamp.

In particular, the first embodiment has the advantage that the control configuration of the entire device is simple, but on the other hand,
If the merging section 120 is long, the merging warning time by the ramp 24 will become too long, and if the merging section is in the latter half of the merging section, the main line vehicle will be in Q1.
Even if you are driving nearby, you will be warned earlier than necessary.

If you are in the first half of the merging section, you will receive a warning even after passing the main line vehicle.

However, according to the device according to the second embodiment, it is possible to solve the above-mentioned problems and to make merging vehicles quickly and efficiently merge onto the main track 110. becomes.

[Effects of the invention] As explained above, according to the invention, the driver of a merging vehicle can know the presence or absence of a main line vehicle within the merging danger warning section based on the merging warning display, so that the driver of the merging vehicle can know whether there is a main line vehicle within the merging danger warning section. This makes it possible to smoothly merge vehicles safely by reducing the burden on the driver and without causing traffic congestion on the merge road.

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams showing a first preferred embodiment of the warning device for merging vehicles according to the present invention, and FIGS. 3 and 4 are explanatory diagrams showing a preferred second embodiment of the present invention. , FIG. 5 is an explanatory diagram of the vicinity of a rampway on a motorway, and FIG. 6 is a schematic explanatory diagram of a conventional device. 20... Speed sensor, 22... Danger time calculation circuit, 24... Warning lamp, 100... Merging road, 1
10... Main track, 120... Merging section, 200...
...merging vehicle, 210...main line vehicle.

Claims (1)

[Scope of claim for utility model registration] (1) In a device that warns merging vehicles of the danger of merging onto the main track in a merging section between a merging road and a main track, the speed of the main line vehicle is adjusted before the merging section. a speed sensor that detects at a predetermined position; a dangerous time calculation means that calculates a scheduled start time and a scheduled end time for a main line vehicle to pass through the merging danger warning section based on the detected speed; A warning device for a merging vehicle, comprising: a display means for displaying a warning message for a merging vehicle to merge onto a main track; (2) In the device set forth in claim (1) for utility model registration, the calculation means calculates an optimum inter-vehicle distance based on the detected vehicle speed, and determines a section where the optimum inter-vehicle distance is added to a merging section as a merging danger warning section. A warning device for merging vehicles characterized by being set. (3) In the device according to either of claims (1) or (2) for utility model registration, the display means includes a plurality of display means installed at predetermined intervals within the merging section between the merging road and the main track. The vehicle includes a warning lamp, and the calculating means sets a merging danger warning section for each warning lamp, and lights up the corresponding warning lamp each time the main line vehicle travels within each danger warning section. Warning device for merging vehicles.