JPH09226573A - Vehicle door opening and closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle door opening and closing device of high safety having the capability of preventing a door from being opened in spite of an erroneous door opening operation. SOLUTION: A door open/close instruction circuit 1 outputs a door open/close instruction signal S1 on the operation of a door open/close switch SW1. Also, a door open/close control circuit 2 receives the door open/close instruction signal S1, a speed signal S2 showing the speed of a travel and a spot detection signal S3 obtainable at the time of the entry of the vehicle into a station. When a travel speed shown by the speed signal S2 becomes equal to or above the preset speed, the control circuit 2 interrupts the door open/close instruction signal S1 and holds the interrupted state. Also, the control circuit 2 releases the interrupted state and allows the door open/close instruction signal S1 to pass, provided that the travel speed shown by the speed signal S2 is lower than the preset value and the point detection signal S3 is received.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle door opening / closing device.

[0002]

2. Description of the Related Art Many conventional vehicle door opening / closing devices are configured to block a door opening command signal when the vehicle speed is equal to or higher than a predetermined speed to prohibit the door from opening during traveling. There is. The door open command signal is obtained by the conductor or driver operating the door open / close switch to the door open side.

However, when a vehicle stops between stations,
Since the interruption of the door opening command signal is released, if the conductor or the driver mistakenly operates the door opening / closing switch to the door opening side, the door may be opened, which may lead to a fall accident of passengers.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a highly safe vehicle door opening / closing device in which the door does not open due to an incorrect door opening operation.

Another object of the present invention is to provide a suitable vehicle door opening / closing device for use with an automatic driving device or the like.

[0006]

In order to solve the above problems, a vehicle door opening / closing apparatus according to the present invention includes a door opening / closing command circuit and a door opening / closing control circuit. The door opening / closing command circuit is
A door opening / closing switch is included, and a door opening / closing command signal is output by operating the door opening / closing switch. The door opening / closing control circuit uses the door opening / closing command signal, a speed signal indicating the traveling speed of the vehicle, and a point detection signal obtained when the vehicle enters a station as input signals. Then, when the traveling speed indicated by the speed signal becomes equal to or higher than a predetermined speed, the door opening / closing command signal is cut off and the cutoff state is held. The door opening / closing control circuit also releases the blocking state on condition that the traveling speed indicated by the speed signal is less than the predetermined speed, and the point detection signal is input,
The door opening / closing command signal is passed.

As described above, the door opening / closing control circuit cuts off the door opening / closing command signal given from the door opening / closing command circuit when the traveling speed indicated by the speed signal becomes equal to or higher than the predetermined speed, and cuts off the door opening / closing command signal. Hold the state. During traveling, since the traveling speed is equal to or higher than the predetermined speed, the door opening / closing command signal is interrupted and the interrupted state is maintained. Therefore, even if the door opening / closing command circuit outputs the door opening command signal due to an erroneous door opening operation during traveling, the door does not open. As a result, a fall accident of passengers while the vehicle is traveling is prevented.

When the vehicle is stopped between stations, the point detection signal is not obtained, and therefore the condition for releasing the shutoff state and allowing the door opening / closing command signal to pass is not satisfied. Therefore, when the vehicle is stopped between stations,
Even if the door opening operation is erroneously performed and the door opening / closing command circuit outputs the door opening command signal, the door opening / closing control circuit continues to shut off the door opening command signal. This means that when the vehicle is stopped between stations, the door does not open even if the door opening / closing switch forming the door opening / closing command circuit is operated. This prevents passengers from falling when the vehicle is stopped between stations.

The door opening / closing control circuit releases the shutoff state and passes the door opening / closing command signal on condition that the traveling speed indicated by the speed signal is equal to or lower than a predetermined speed and the point detection signal is input. . When the vehicle is about to stop at the station, the above two conditions regarding the speed signal and the point detection signal are satisfied. Therefore, if a vehicle stops at a station,
The door can be opened in response to the door open command signal.

[0010] Other features of the present invention and the operation and effects thereby will be described in more detail with reference to the accompanying drawings.

[0011]

1 is a block diagram showing the construction of a vehicle door opening / closing device according to the present invention. The vehicle door opening / closing device according to the present invention includes a door opening / closing command circuit 1 and a door opening / closing control circuit 2. In the figure, reference numeral 3 is a door opening / closing drive unit.

The door opening / closing command circuit 1 outputs a door opening / closing command signal S1 which is a command to open / close the door 3. The door opening / closing command signal S1 is given by, for example, a contact output of the door opening / closing switch SW1. Door open / close switch SW for one-man driving vehicles
1 is composed of a driver switch provided in the driver's seat. The door open command is given, for example, by closing the contact of the driver switch SW1, and the door close command is given by opening the contact of the driver switch SW1.

The door opening / closing control circuit 2 has a door opening / closing command signal S1.
A speed signal S2 indicating the traveling speed of the vehicle and a point detection signal S3 obtained when the vehicle enters the station are used as input signals. Then, when the traveling speed indicated by the speed signal S2 becomes equal to or higher than a predetermined speed, for example, 5 km / h or more, the door opening / closing command signal S1 is cut off and the cutoff state is maintained. Further, on condition that the traveling speed indicated by the speed signal S2 is less than a predetermined speed, for example, less than 5 km / h, and the point detection signal S3 is input, the shutoff state is released and the door opening / closing command signal S1 is set. Let it pass. The speed signal S2 is given by, for example, the tachogenerator 4 that detects the rotation speed of the wheels. The point detection signal S3 is given, for example, when the car top 52 is coupled to the ground member 53 provided at a specific point. In the case of automatic driving, generally, the ground element is set at the position closest to the stop position leaving a distance of about 10 m to the stop target on the station yard immediately before the stop, so this ground element is used as the ground element 53. can do.

Specifically, the door opening / closing control circuit 2 includes a speed detection relay DSR, a point detection relay P3R, and a door opening prohibition relay.
It is configured to include SIDR and. The speed detection relay DSR is excited when the traveling speed indicated by the speed signal S2 is 5 km / h or more, and the up-contact point DSR1 is closed and the drop contact DSR2 is opened.

The point detection relay P3R has a point detection signal S3.
Is excited when is input, and its fall contact P3R1 opens. The drop contact P3R1 is closed when the point detection signal S3 is not input. Since specific circuits for driving the speed detection relay DSR and the point detection relay P3R are well known, they are omitted. Reference symbol B is a power source terminal of positive polarity, C
Is a negative power source terminal.

[0016] For the door open prohibition relay SIDR,
And the series circuit of the drop contact P3R1 and the enlarging contact SIDR1
They are connected in parallel. If the traveling speed indicated by the speed signal S2 becomes 5 km / h or more and the speed detection relay DSR is excited, and the enlarging contact DSR1 is closed, the door open prohibition relay
SIDR is energized and its contact, SIDR1, closes. If the point detection signal S3 is not input, the point detection relay P3R
Since the drop contact P3R1 of is closed, the open door prohibition relay SIDR is also excited by the series circuit of the drop contact P3R1 and the drop SIDR1 when the drop contact SIDR1 is closed. As a result, the door open prohibition relay SIDR is held by itself.

While the door open prohibition relay SIDR is held by itself, the drop contact SIDR2 continues to open. Drop contact SIDR2
Are connected in series to the driver switch SW1. Therefore, even if the operation switch SW1 is closed after the traveling speed indicated by the speed signal S2 becomes 5 km / h or more and the door open prohibition relay SIDR is held by itself, the door opening / closing command signal S1
Is blocked by the drop contact SIDR2 of the door open prohibition relay SIDR2. This means that the driver switch SW
This means that the door will not be opened even if the door open command signal S1 is generated by the operation of 1. As a result, a fall accident of passengers while the vehicle is traveling is prevented.

The self-holding of the door open prohibition relay SIDR is released when the traveling speed indicated by the speed signal S2 becomes less than 5 km / h, the up-contact DSR1 of the speed detection relay DSR is opened, and the point detection relay is released. This is when P3R is excited and the drop contact P3R1 is opened. The traveling speed indicated by the speed signal S2 is 5 km
Even if it becomes less than / h, and even if the rising contact DSR1 of the speed detection relay DSR is opened, the self-holding is not released unless the drop contact P3R1 of the point detection relay P3R is opened. This means that if the vehicle is stopped between stations, the driver switch SW1 is accidentally operated and the door open command signal S
Even if 1 occurs, it means that the door open command signal S1 continues to be interrupted by the opening of the drop contact SIDR2 and the door does not open. This prevents passengers from falling when the vehicle is stopped between stations.

When the vehicle approaches the stop station, the traveling speed indicated by the speed signal S2 becomes less than 5 km / h, the up-and-down contact DSR1 of the speed detection relay DSR is opened, and the drop contact P3R1 of the point detection relay P3R is opened. , The door open / close command signal S1 obtained by operating the driver switch SW1 is the door open prohibition relay SI
It is supplied to the door opening / closing drive unit 3 through the DR drop contact SIDR2. Therefore, when the vehicle stops at the station, the door can be opened in response to the door opening command signal S4.

The operation of the vehicle door opening / closing device shown in FIG. 1 will be described in more detail with reference to FIG. FIG. 2 shows FIG.
4 is a time chart showing the operation of the vehicle door opening / closing device shown in FIG. The figure shows the operation from the departure from station A to the arrival at station B. In FIG. 2, the closing command is indicated by a logical value 1 and the opening command is indicated by a logical value 0 (see FIG. 2 (a)). No point detection signal is indicated by a logical value 1, and a point detection signal is indicated by a logical value 0 (see FIG. 2 (c)). Opening of the contact is indicated by a logical value 1 and closing of the contact is indicated by a logical value 0 (see FIGS. 2 (d), (e), (g), and (h)). Excitation of the relay is a logical value of 1. , And non-excitation is indicated by a logical value of 0 (see FIG. 2 (f)). The door closed is indicated by a logical value 1 and the door opened is indicated by a logical value 0 (see FIG. 2 (i)).

At time t1, when the driver operates the driver switch SW1 constituting the door opening / closing command circuit 1 to the door closing side, the contact of the driver switch SW1 is opened, and the door opening / closing of the logical value 1 which becomes the door closing command is performed. The command signal S1 is output (Fig. 2
(a)). In this case, since the traveling speed indicated by the speed signal S2 is less than 5 km / h (see FIG. 2 (b)), the speed detection relay DSR is not excited and the enlarging contact DSR1 is opened (FIG. 2).
(See (e)).

When the uphill contact DSR1 is open, the open door prohibition relay SIDR is not excited, and the uphill contact SIDR1 is open,
The drop contact SIDR2 is closed (see Figures 2 (g) and (h)). Since the drop contact SIDR2 is closed, the door open / close command signal S1 obtained by operating the driver switch SW1 toward the door close side is supplied to the door open / close drive unit 3 through the drop contact SIDR2.

At time t1, since the point detection ground signal S3 is a signal without point detection (see FIG. 2 (c)), the point detection relay P3R is not excited and the drop contact P3R1 is closed. (See FIG. 2 (d)).

At time t11, the door is closed (see FIG. 2).
(See (i)). At time t12, the vehicle departs from station A (see FIG. 2 (b)).

Next, at time t2, when the traveling speed indicated by the speed signal S2 becomes 5 km / h or more (see FIG. 2 (b)),
The speed detection relay DSR is excited, and at time t21, the energizing contact D
SR1 closes (see Figure 2 (e)).

Due to the closing of the Urakami contact DSR1, at time t21,
The door open prohibition relay SIDR is excited (see FIG. 2 (f)), and at time t22, the uphill contact SIDR1 is closed (see FIG. 2 (g)).
Then, the drop contact SIDR2 opens (see Fig. 2 (h)).

As described above, since the drop contact P3R1 is closed, the drop contact P3R1 is closed by closing the enlarging contact SIDR1.
And, a series circuit of the encapsulation contact SIDR1 is formed, and the door open prohibition relay SIDR is self-held through this series circuit.

While the open door prohibiting relay SIDR is held by itself, the drop contact SIDR2 continues to open. Drop contact SIDR2
Are connected in series to the driver switch SW1. Therefore, after the traveling speed indicated by the speed signal S2 becomes 5 km / h or more, while the door open prohibition relay SIDR is held by itself, even if the driver switch SW1 is closed, the door open / close command signal S
1 is cut off by the drop contact SIDR2 of the door open prohibition relay SIDR. This means that while driving, the driver switch
This means that the door open / close drive unit 3 does not open the door even if the door open command signal S1 is generated by the operation of SW1. As a result, a fall accident of passengers while the vehicle is traveling is prevented.

Next, at time t3, when the traveling speed indicated by the speed signal S2 becomes less than 5 km / h due to a deceleration command or the like (see FIG. 2 (b)), the speed detection relay DSR is de-energized. Then, at time t31, the uplift contact DSR1 is opened (see FIG. 2 (e)). At this point, the point detection ground signal S3 has not been generated yet (see FIG. 2 (c)), so the point detection relay P3R is not excited and the drop contact P3R1 is closed (see FIG. 2 (d)). ). Therefore, the series circuit of the drop contact P3R1 and the enlarging contact SIDR1 still constitutes a conduction circuit, and the door open prohibition relay SIDR maintains self-holding by this series circuit.

At time t32, the point detection signal S3 corresponding to the point detection is input (see FIG. 2 (c)), the point detection relay P3R is excited, and at time t33, the drop contact P3R.
1 opens (Fig. 2 (d)). When the drop contact P3R1 is opened, the door open prohibition relay SIDR is released from self-holding and becomes non-excited (see Fig. 2 (f)).

At time t34, the enlarging contact SIDR1 is opened (FIG. 2 (g)) and the falling contact SIDR2 is closed (FIG. 2).
(h)). Closing the drop contact SIDR2 closes the door open / close command signal S
The blocking action for 1 is released. Therefore, the door can be opened and closed by operating the operation switch SW1.

After the time t35, the spot detection signal S3 with spot detection disappears. At time t36, the drop contact P3R1 is closed.

At time t4, the vehicle arrives at station B. At time t41, the driver operates the driver switch SW1 to the door opening side. The door opening / closing command circuit 1 outputs a door opening / closing command signal S1 corresponding to the door opening command when the contact of the driver switch SW1 is closed (see FIG. 2 (a)). The door opening / closing command signal S1 is supplied to the door opening / closing drive unit 3, and at time t42,
The door opens (see Fig. 2 (i)).

As described above, the door opening / closing control circuit 2 stops the vehicle at a predetermined stop position when the traveling speed indicated by the speed signal S2 is less than 5 km / h and the point detection signal S3 is input. As a thing, the door opening command signal S1 is passed. Therefore, the vehicle door opening / closing device causes the door opening command signal S to be output when the vehicle stops at a predetermined stop position such as a station.
The door can be opened according to 1.

FIG. 3 is a time chart showing another operation of the vehicle door opening / closing device according to the present invention. The figure shows the operation in the case where the train departs from station A and stops halfway before reaching station B.

The operation from time t1 to time t22 is shown in FIG.
The operation is the same as the case shown in. At time t50 when the vehicle is running between stations, the vehicle starts to decelerate, and at time t5
In No. 1, the traveling speed of the vehicle is less than 5 km / h (Fig. 3
(b)). Then, at time t52, the speed detection relay DSR is de-energized, and the uplift contact DSR1 is opened (Fig. 3).
(See (e)). At time t53, the vehicle stops between stations. Since the vehicle is stopping in front of station B, the point detection ground signal S3 does not occur (see FIG. 3 (c)), the point detection relay P3R is not excited, and the drop contact P3R1 is closed. (See FIG. 3 (d)). Therefore, the series circuit of the drop contact P3R1 and the enlarging contact SIDR1 still constitutes a conduction circuit, and the door open prohibition relay SIDR maintains self-holding by this series circuit (see FIG. 3 (f)). Therefore, the drop contact SIDR2 continues to open. Therefore, even if the driver switch SW1 is closed at time t54, the door opening command signal S1 is cut off by the drop contact SIDR2. This means that the door open / close drive unit 3 does not open the door even if the door open command signal S1 is generated by operating the driver switch SW1 while the train is stopped between stations. This prevents passengers from falling while the train is stopped between stations.

Referring again to FIG. In the vehicle door opening / closing device shown in FIG. 1, the vehicle upper member constituting the on-vehicle device is
When coupled with a ground element provided on the ground side, a point detection signal S3 is generated. In the illustrated example, the power wave W1 generated by the transmission / reception device 51 of the automatic train operation device (ATO device)
The unpowered ground child (transponder) via the on-board child 52
To 53. The unpowered ground child 53 is activated by the power wave W1 and transmits the control information W2 owned by itself to the transmission / reception device 51 via the on-board child 52. The transmitter / receiver 51 is
By receiving the control information W2, the point detection signal S3
Is output. According to this configuration, the reception of the control information W2 can be used as the point detection signal S3,
It is possible to obtain a suitable vehicle door opening / closing device when used together with an automatic driving device or the like.

Although not shown, an automatic train stop device (AT
The variable frequency oscillation circuit used in the S device) may be configured to output the point detection signal S3 when the oscillation frequency is constantly changed to the frequency corresponding to the red indication.

The vehicle door opening / closing device shown in FIG. 1 further has a switch SW2, and the switch SW2 is connected in series to the drop contact DSR2 of the speed detection relay DSR. The series circuit of the switch SW2 and the drop contact DSR2 is the driver switch SW1 and the drop contact SID.
It is connected in parallel to the series circuit of R2. According to this configuration, the drop contact DSR2 is closed when the vehicle is stopped, so if the vehicle is in an emergency stop between stations due to a fire, etc., operate the switch SW2 to the door open side. The door can be opened by closing the contact.

FIG. 4 is a view for explaining a concrete use state of the vehicle door opening / closing device according to the present invention. In the figure, FIG.
The same reference numerals as those shown above indicate identical components. Reference numeral A is a vehicle door opening / closing device according to the present invention.

The transponders 531 to 533 are stopped at the stop position P0.
The stop pattern TP for stopping the vehicle 6 is transmitted to the upper side of the vehicle as control information W2. Transponder 531-5
The arrangement positions P1 to P3 of 33 are determined in consideration of the stop pattern TP, the braking performance of the vehicle, and the like. For example,
Positions P1 to P of the transponders 531 to 533, respectively
3 is generally 110 m, 10 m, 2 from the stop position P0.
m. The point detection signal S3 is obtained by electromagnetically coupling the upper armature 52 with the transponder 533 to control information W.
Given by receiving 2. According to this configuration, the door is opened only when the vehicle 6 stops at the stop position P0 of the station, so high safety can be secured.

[0042]

As described above, according to the present invention, the following effects can be obtained. (A) It is possible to provide a highly safe vehicle door opening / closing device in which the door does not open due to an incorrect door opening operation. (B) It is possible to provide a suitable vehicle door opening / closing device when used together with an automatic driving device or the like.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a vehicle door opening / closing device according to the present invention.

FIG. 2 is a time chart showing the operation of the vehicle door opening / closing device according to the present invention.

FIG. 3 is a time chart showing another operation of the vehicle door opening / closing device according to the present invention.

FIG. 4 is a diagram illustrating a specific usage state of the vehicle door opening / closing device according to the present invention.

[Explanation of symbols]

 1 Door open / close command circuit 2 Door open / close control circuit 3 Door S1 Door open / close command signal S2 Speed signal S3 Point detection signal

Claims (3)

[Claims] 1. A vehicle door opening / closing device including a door opening / closing command circuit and a door opening / closing control circuit, wherein the door opening / closing command circuit includes a door opening / closing switch, and opening / closing the door by operating the door opening / closing switch. It outputs a command signal, the door opening and closing control circuit, the door opening and closing command signal, a speed signal indicating the traveling speed of the vehicle, and a point detection signal obtained when the vehicle enters the station as an input signal , When the traveling speed indicated by the speed signal becomes equal to or higher than a predetermined speed, the door opening / closing command signal is cut off, and the cutoff state is held,
Door opening / closing for vehicle that releases the shutoff state and allows the door opening / closing command signal to pass on condition that the traveling speed indicated by the speed signal is less than the predetermined speed and the point detection signal is input. apparatus. 2. The vehicle door opening / closing device according to claim 1, wherein the point detection signal is generated by an on-board child provided in the on-board device.
A vehicle door opening / closing device provided from the on-board device when combined with a ground element provided on the ground side. 3. The vehicle door opening / closing device according to claim 2, wherein the point detection signal includes a plurality of ground elements in which the vehicle upper child is provided along a traveling direction of the vehicle. A vehicle door opening and closing device that is provided when it is combined with the ground element closest to the stop position.