JP2021026649A - Driving support system, driving support method, and program - Google Patents

Abstract

To suppress a lag of arrival time to a destination among a plurality of vehicles when the plurality of vehicles go to a common destination.SOLUTION: A driving support system 1 for supporting driving of an own vehicle when the own vehicle and other vehicles move to a common destination comprises: an own vehicle arrival estimate time calculation part 17 which acquires own vehicle arrival estimate time in which the own vehicle arrives at the destination; an other vehicle arrival estimate time acquisition part 19 which acquires other vehicle arrival estimate time in which other vehicles arrive at the destination; and a driving support part 13 which selectively executes a normal support mode for supporting the driving of the own vehicle when the own vehicle arrival estimate time is later than or the same as the other vehicle arrival estimate time, and a delay support mode for supporting the driving of the own vehicle when the own vehicle arrival estimate time is earlier than the other vehicle arrival estimate time of at least one of the other vehicles on the basis of the own vehicle arrival estimate time and the other vehicle arrival estimate time.SELECTED DRAWING: Figure 2

Description

The present invention relates to a driving support system, a driving support method, and a program.

Patent Document 1 (Japanese Unexamined Patent Publication No. 2012-52805) discloses a navigation device that notifies whether another vehicle has arrived at a common destination when a plurality of vehicles head for a common destination.

An object of the present invention is to provide a technique for suppressing a deviation in arrival time at a destination among a plurality of vehicles when the plurality of vehicles head for a common destination.

According to the first aspect of the present invention, it is a driving support system that assists the driving of the own vehicle when the own vehicle and one or a plurality of other vehicles move to a common destination, and the own vehicle. The own vehicle arrival estimated time acquisition unit that acquires the own vehicle arrival estimated time when the other vehicle arrives at the destination, and the other vehicle arrival estimated time acquisition unit that acquires the other vehicle arrival estimated time when the other vehicle arrives at the destination. , Normal support for supporting the driving of the own vehicle when the estimated arrival time of the own vehicle is later than or the same as the estimated arrival time of the other vehicle based on the estimated arrival time of the own vehicle and the estimated arrival time of the other vehicle. Driving support that selectively executes a mode and a delay support mode that assists the driving of the own vehicle when the estimated arrival time of the own vehicle is earlier than the estimated arrival time of the other vehicle of at least one of the other vehicles. A driving support system with a department and is provided.
According to the second aspect of the present invention, the driving support method for supporting the driving of the own vehicle when the own vehicle and one or a plurality of other vehicles move to a common destination, the own vehicle. The step of acquiring the estimated time of arrival of the own vehicle to acquire the estimated time of arrival of the own vehicle arriving at the destination, and the step of acquiring the estimated time of arrival of the other vehicle for the other vehicle to arrive at the destination. , Normal support for supporting the driving of the own vehicle when the estimated arrival time of the own vehicle is later than or the same as the estimated arrival time of the other vehicle based on the estimated arrival time of the own vehicle and the estimated arrival time of the other vehicle. Driving support that selectively executes a mode and a delay support mode that assists the driving of the own vehicle when the estimated arrival time of the own vehicle is earlier than the estimated arrival time of the other vehicle of at least one of the other vehicles. Driving assistance methods, including steps, are provided.

According to the present invention, when a plurality of vehicles head for a common destination, it is possible to suppress a deviation in arrival time at the destination among the plurality of vehicles.

It is a figure which shows a mode that a plurality of vehicles move to a common destination. (First Embodiment) It is a functional block diagram of a driving support system. (First Embodiment) It is a figure which shows the memory content of the merged vehicle arrival estimated time DB. (First Embodiment) It is a time chart of the operation of the driving support system. (First Embodiment) It is a functional block diagram of a driving support system. (Second Embodiment)

(First Embodiment)
Hereinafter, the first embodiment of the present disclosure will be described with reference to FIGS. 1 to 4.

The driving support system 1 shown in FIGS. 1 and 2 supports the driving of the own vehicle 2 when the own vehicle 2 and the other vehicle 3 move to a common destination 4. FIG. 1 illustrates a case where the own vehicle 2 and two other vehicles 3 move to a common destination 4, but instead of this, the own vehicle 2 and one or three or more other vehicles It is conceivable that 3 moves to a common destination 4.

As shown in FIG. 2, in the present embodiment, the driving support system 1 includes a driving support device 5 mounted on the own vehicle 2 and a support server 6. The driving support device 5 and the support server 6 can perform two-way communication via a public communication network (not shown). The driving support system 1 further includes a driving support device (not shown) mounted on the other vehicle 3. Since the driving support device 5 mounted on the own vehicle 2 and the driving support device mounted on the other vehicle 3 have the same configuration, the latter description will be omitted. The support server 6 may be omitted. In this case, it is conceivable that the driving support device 5 of the own vehicle 2 communicates with the driving support device of the other vehicle 3 by means such as inter-vehicle communication to transmit and receive information. Further, the other vehicle 3 may not be provided with the driving support device, and may be in the form of transmitting the estimated arrival time when the other vehicle 3 arrives at the destination to the support server 6 or the driving support device 5.

(Driving support device 5)
The driving support device 5 includes a CPU 5a (Central Processing Unit) as a central processing unit, a read / write free RAM 5b (Random Access Memory), and a read-only ROM 5c (Read Only Memory). Then, the CPU 5a reads and executes the control program stored in the ROM 5c, so that the control program drives the hardware such as the CPU 5a into the destination setting unit 10, the merging other vehicle setting unit 11, the current location acquisition unit 12, and the operation. It functions as a support unit 13, a required time calculation unit 15, a current time acquisition unit 16, an own vehicle arrival estimated time calculation unit 17, an own vehicle arrival estimated time transmission unit 18, and another vehicle arrival estimated time acquisition unit 19. The driving support device 5 further includes a display 5d as an output unit and a touch panel 5e as an input unit.

The destination setting unit 10 sets the position information of the destination 4 according to the operation of the touch panel 5e by the user. The destination setting unit 10 may set the position data of the destination 4 based on the received data from the support server 6 or the other vehicle 3. There may be a form in which the destination 4 is set using a communication device such as a smartphone (not shown).

The merging other vehicle setting unit 11 sets the vehicle ID of the other vehicle 3 to which the own vehicle 2 merges at the destination 4 in response to the operation of the touch panel 5e by the user. The merging other vehicle setting unit 11 may set the vehicle ID of the other vehicle 3 to which the own vehicle 2 merges at the destination 4 based on the received data from the support server 6 or the other vehicle 3.

The current location acquisition unit 12 acquires the current location data regarding the current location of the own vehicle 2 by using, for example, a GPS receiver (Global Positioning System) or a GLONASS receiver (Global Navigation Satellite System). The current location acquisition unit 12 may acquire current location data using autonomous navigation means including an acceleration sensor and an angular velocity sensor.

The driving support unit 13 supports the driving of the own vehicle 2. In the present embodiment, the driving support unit 13 includes a route search unit 13a and a route guidance unit 13b.

The route search unit 13a searches for a route from the current location to the destination 4, and generates route data regarding the guide route as the specified route. The route search unit 13a searches for an appropriate route according to a set search mode such as an arrival time priority mode, a toll road priority mode, and a traffic jam avoidance mode.

The route guidance unit 13b guides the user on the route to the destination 4 mainly via the display 5d based on the route data generated by the route search unit 13a.

The required time calculation unit 15 calculates the time required for the own vehicle 2 to travel from the current location to the destination 4 along the guide route as the required time. This required time can be calculated by using the mileage along the guide route and the speed limit or average travel speed at each link constituting the guide route.

The current time acquisition unit 16 acquires the current time data related to the current time by using, for example, a GPS receiver (Global Positioning System) or a GLONASS receiver (Global Navigation Satellite System). The current time acquisition unit 16 may acquire the current time data from the internal clock of the driving support device 5.

The own vehicle arrival estimated time calculation unit 17 calculates the own vehicle arrival estimated time, which is the estimated time when the own vehicle 2 arrives at the destination 4, based on the current time and the required time.

The own vehicle arrival estimated time transmission unit 18 transmits the arrival estimated time data regarding the own vehicle arrival estimated time to the support server 6 or the other vehicle 3. However, the own vehicle arrival estimated time transmission unit 18 may be omitted. In this case, the estimated arrival time of the own vehicle 2 is not notified to the support server 6 or the other vehicle 3.

The other vehicle arrival estimated time acquisition unit 19 receives and acquires the other vehicle arrival estimated time data indicating the other vehicle arrival estimated time as the estimated time when the other vehicle 3 arrives at the destination 4 from the support server 6 or the other vehicle 3. To do.

Then, the driving support unit 13 supports the driving of the own vehicle 2 based on the estimated arrival time of the own vehicle and the estimated arrival time of the other vehicle. Specifically, when the estimated arrival time of the own vehicle is earlier than the estimated arrival time of the other vehicle, the driving support unit 13 delays the estimated arrival time of the own vehicle so that the difference between the estimated arrival time of the own vehicle and the estimated arrival time of the other vehicle can be obtained. Support the operation of the own vehicle 2 so as to shorten it.

In the present embodiment, the driving support unit 13 is configured to selectively execute the normal support mode and the delay support mode.

The normal support mode is a mode for supporting the driving of the own vehicle 2 when the estimated arrival time of the own vehicle is later than the estimated arrival time of the other vehicle. When executing the normal support mode, the driving support unit 13 typically supports the driving of the own vehicle 2 so that the own vehicle 2 arrives at the destination 4 as soon as possible. The normal support mode may be selected when the estimated arrival time of the own vehicle is almost the same as the estimated arrival time of another vehicle, and the route search unit 13a performs a route search in the arrival time priority mode or the toll road priority mode. May be selected if present.

The delay support mode is a mode for supporting the driving of the own vehicle 2 when the estimated arrival time of the own vehicle is earlier than the estimated arrival time of the other vehicle. When executing the delay support mode, the driving support unit 13 prioritizes the fuel efficiency, traffic safety, driving comfort, and alleviation of driving fatigue of the own vehicle 2 rather than the arrival time of the own vehicle 2 at the destination 4. In consideration of this, it is possible to provide user-friendly driving support for driving the own vehicle 2. When the own vehicle 2 heads for the destination 4 common to the plurality of other vehicles 3, the delay support mode is when the estimated arrival time of the own vehicle is earlier than the estimated arrival time of at least one other vehicle 3. In addition, the mode may be a mode for supporting the driving of the own vehicle 2.

The driving support unit 13 operates based on the mode selected from the normal support mode and the delay support mode. The normal support mode and the delay support mode may be selected by the user.

(Support server 6)
The support server 6 will be described with reference to FIG. The support server 6 includes a CPU 6a (Central Processing Unit) as a central processing unit, a read / write free RAM 6b (Random Access Memory), and a read-only ROM 6c (Read Only Memory). Then, the CPU 6a reads and executes the control program stored in the ROM 6c, so that the control program executes the hardware such as the CPU 6a by the merging vehicle management unit 20, the merging vehicle expected arrival time DB21, and the expected arrival time acquisition unit 22. , It functions as an estimated arrival time transmission unit 23. The driving support device 5 may include the merging vehicle management unit 20 and the merging vehicle arrival estimated time DB 21. Further, the estimated arrival time acquisition unit 22 and the estimated arrival time transmission unit 23 can be omitted because the driving support device 5 directly communicates with the other vehicle 3.

The merging vehicle management unit 20 manages a plurality of vehicles merging at the destination 4 in association with each other.

Expected arrival time of merging vehicle DB 21 stores the estimated arrival time of each of a plurality of vehicles merging at the destination 4. FIG. 3 illustrates the stored contents of the merged vehicle arrival estimated time DB21. In the example of FIG. 3, it is assumed that three vehicles with vehicle IDs from 00001 to 00003 meet at the destination 4, the estimated arrival time of the vehicle with vehicle ID 00001 is 08:52, and the estimated arrival time of the vehicle with vehicle ID 00002. The time is 10:12, and the estimated arrival time of the vehicle with vehicle ID 00003 is 9:07. That is, only the vehicle with vehicle ID 00002 is expected to arrive at the destination 4 later than the other vehicles.

The estimated arrival time acquisition unit 22 acquires the estimated arrival time data from the own vehicle 2 or the other vehicle 3, and updates the stored contents of the merging vehicle estimated arrival time DB 21 based on the acquired estimated arrival time data.

The estimated arrival time transmission unit 23 transmits the estimated arrival time data of the vehicle related to the vehicle that is the request source to the vehicle in response to the request from the own vehicle 2 or the other vehicle 3 or periodically.

(Operation)
S100:
First, the destination setting unit 10 sets the position information of the destination 4 according to the operation of the touch panel 5e by the user.

S110:
Next, the merging other vehicle setting unit 11 sets the vehicle ID of the other vehicle 3 to which the own vehicle 2 merges at the destination 4 in response to the operation of the touch panel 5e by the user.

S120:
Next, the merging other vehicle setting unit 11 transmits the merging other vehicle data regarding the vehicle ID of the other vehicle 3 to which the own vehicle 2 merges at the destination 4 to the support server 6 or the other vehicle 3.

S130:
Next, the merging vehicle management unit 20 generates the merging vehicle arrival estimated time DB 21 based on the merging other vehicle data.

S140:
Next, the current location acquisition unit 12 acquires the current location data regarding the current location of the own vehicle 2.

S150:
Next, the driving support unit 13 supports the driving of the own vehicle 2.

S160:
Specifically, the route search unit 13a searches for an appropriate route from the current location to the destination 4, and generates route data regarding the guide route as the specified route.

S170:
Further, the route guidance unit 13b starts route guidance to the destination 4 to the user mainly via the display 5d based on the route data generated by the route search unit 13a.

S180:
Next, the required time calculation unit 15 calculates the time required for the own vehicle 2 to travel from the current location to the destination 4 along the guide route as the required time.

S190:
The current time acquisition unit 16 acquires the current time data.

S200:
Next, the own vehicle arrival estimated time calculation unit 17 calculates the own vehicle arrival estimated time, which is the estimated time when the own vehicle 2 arrives at the destination 4, based on the current time and the required time.

S210:
Next, the own vehicle arrival estimated time transmission unit 18 transmits the arrival estimated time data regarding the own vehicle arrival estimated time to the support server 6 or the other vehicle 3 in association with the vehicle ID of the own vehicle 2.

S220:
The estimated arrival time acquisition unit 22 updates the estimated arrival time DB 21 of the merging vehicle based on the estimated arrival time data received from the own vehicle 2.

S230:
Next, the other vehicle estimated arrival time acquisition unit 19 requests the support server 6 or the other vehicle 3 for the estimated arrival time data, which is the estimated time when the other vehicle 3 arrives at the destination 4.

S240:
In response to this, the estimated arrival time transmission unit 23 transmits the estimated arrival time data of the other vehicle 3 to the other vehicle estimated arrival time acquisition unit 19 of the own vehicle 2. Alternatively, the driving support device of the other vehicle 3 transmits the estimated arrival time data of the other vehicle 3 to the other vehicle estimated arrival time acquisition unit 19 of the own vehicle 2.

S250:
Then, the driving support unit 13 selects either the normal support mode or the delay support mode based on the estimated arrival time of the own vehicle and the estimated arrival time of the other vehicle. Specifically, the driving support unit 13 selects the normal support mode when the estimated arrival time of the own vehicle is later than or the same as the estimated arrival time of the other vehicle, and the estimated arrival time of the own vehicle is larger than the estimated arrival time of the other vehicle. If it is too early, select the delay support mode. When there are a plurality of other vehicles 3, the driving support unit 13 compares the latest estimated arrival time of the other vehicle among the estimated arrival times of the other vehicles 3 with the estimated arrival time of the own vehicle, and provides normal support. Either the mode or the delay support mode may be selected. In the example shown in FIG. 3, when the vehicle ID of the own vehicle 2 is 000001, the driving support unit 13 usually compares the estimated arrival time of the other vehicle 3 having the vehicle ID 00002 with the estimated arrival time of the own vehicle. Either the support mode or the delay support mode may be selected.

S260:
Then, the driving support unit 13 determines whether or not the own vehicle 2 has arrived at the destination. If it is determined that the own vehicle 2 has not arrived at the destination (S260: NO), the driving support unit 13 returns the process to S140. On the other hand, if it is determined that the own vehicle 2 has arrived at the destination (S260: YES), the driving support unit 13 ends the process.

When the normal support mode is selected in the S150, the driving support unit 13 typically supports the driving of the own vehicle 2 so that the time required for the own vehicle 2 to reach the destination 4 is the shortest. .. Even when the driving support unit 13 selects the normal support mode by the operation by the user, for example, the estimated arrival time is the earliest, the mileage is the shortest, or the toll road. You may support the driving of the own vehicle 2 so as to preferentially travel. On the other hand, when the delay support mode is selected, the driving support unit 13 drives the own vehicle 2 so that the difference between the estimated arrival time of the own vehicle and the estimated arrival time of another vehicle is shortened by delaying the estimated arrival time of the own vehicle. Support.

That is, the driving support unit 13 supports the driving of the own vehicle 2 so as to suppress the deviation of the arrival times of the plurality of vehicles heading for the common destination 4. Specifically, when the estimated arrival time of the own vehicle 2 is earlier than the estimated arrival time of the other vehicle 3, instead of shortening the required time from the current location to the destination 4 as much as possible, fuel consumption and traffic safety , Road usage fee, ease of driving, and other indicators other than the arrival time of the own vehicle 2 are prioritized over the arrival time, and the driving of the own vehicle 2 is supported.

Hereinafter, specific contents of driving support when the driving support unit 13 selects the delay support mode will be illustrated.

(1) Vehicle Speed and Vehicle Acceleration When executing the delay support mode, the vehicle speed or vehicle acceleration driving support unit 13 suppresses the vehicle speed or vehicle acceleration of the own vehicle 2 as compared with the case of executing the normal support mode. Supports the driving of vehicle 2. Specifically, the driving support unit 13 exceeds a predetermined value such as a speed limit of the road on which the vehicle speed of the own vehicle 2 travels, or the vehicle acceleration of the own vehicle 2 exceeds a predetermined predetermined value. In the case of sudden start or sudden acceleration, the user is instructed to suppress the vehicle speed or the vehicle acceleration via the display 5d. According to this, the fuel efficiency of the own vehicle 2 is improved, and the traffic safety is also improved.

(2) The inter-vehicle distance driving support unit 13 supports the driving of the own vehicle 2 when the delay support mode is executed so that the inter-vehicle distance from the preceding vehicle is longer than when the normal support mode is executed. To do. Specifically, when the inter-vehicle distance to the preceding vehicle is less than a predetermined value set to a longer distance than when the normal support mode is executed, the driving support unit 13 informs the user via the display 5d. Instruct to increase the distance from the preceding vehicle. The driving support unit 13 may have a forward collision warning function that notifies the user when the inter-vehicle distance to the preceding vehicle falls below a predetermined value, and when the delay support mode is executed, the inter-vehicle distance that notifies the user. Set the threshold to a longer distance than when running normal support mode. According to this, the fuel efficiency of the own vehicle 2 is improved, the traffic safety is also improved, and the effect of suppressing the occurrence of traffic congestion can be expected. The distance between the own vehicle 2 and the preceding vehicle can be measured by a known technique such as a phase difference detection method, a TOF method, or a triangular distance measurement method. Further, the inter-vehicle distance between the own vehicle 2 and the preceding vehicle may be set according to the speed of the own vehicle 2. The inter-vehicle distance between the own vehicle 2 and the preceding vehicle may be set according to the type of road on which the vehicle travels, for example, an expressway or a general road.

(3) When the idling stop operation support unit 13 executes the normal support mode, the acceleration performance at the time of starting is prioritized by continuing the operation of the internal combustion engine even when the vehicle is stopped. On the other hand, when the driving support unit 13 executes the delay support mode, the fuel consumption of the own vehicle 2 is prioritized over the acceleration performance at the time of transmission, and the operation of the internal combustion engine is stopped at the time of stopping the vehicle, that is, , Assists the driving of the own vehicle 2 so as to stop idling. According to this, the fuel efficiency of the own vehicle 2 is improved.

(4) Route Search Condition When executing the delay support mode, the driving support unit 13 sets a route that avoids a traffic jam-prone section or an accident-prone section as compared with the case of executing the normal support mode. Assists the driving of the own vehicle 2 so that the vehicle 2 runs. Specifically, when the delay support mode is executed, the route search unit 13a of the driving support unit 13 serves as a route from the current location to the destination 4 as a route from the current location to the destination 4, as compared with the case where the normal support mode is executed. Or search for a route that avoids accident-prone sections. According to this, frequent accelerator and brake operations due to traffic jams and comfortable driving with less frustration can be realized.

(5) Route Search Condition When executing the delay support mode, the driving support unit 13 makes the own vehicle 2 travel on a route having a less signal or a gradient as compared with the case of executing the normal support mode. Supports the driving of vehicle 2. Specifically, when the delay support mode is executed, the route search unit 13a of the driving support unit 13 uses a signal or a gradient as a route from the current location to the destination 4 as compared with the case where the normal support mode is executed. Search for routes with few. According to this, the fuel efficiency of the own vehicle 2 is improved, and comfortable driving with less accelerator and brake operations due to stopping by a signal or traveling on a slope can be realized.

(6) Breaks, etc. When the driving support unit 13 executes the delay support mode, the user recharges, refuels, or charges the in-vehicle battery more frequently than when the normal support mode is executed. Support the driving of the own vehicle 2 as proposed in. The above proposal may be made, for example, via the display 5d. The driving support unit 13 may propose to the user to take a longer break when executing the delay support mode than when executing the normal support mode.

(7) When executing the delay support mode, the pause operation support unit 13 uses, for example, a display 5d so that the stop time at the time of pausing is longer than that when the normal support mode is executed. Instruct the user. Specifically, when the own vehicle 2 is temporarily stopped, the driving support unit 13 instructs the user to continue the stopped state until a predetermined time elapses, for example, via the display 5d, and sets the predetermined time. Change according to the type of support mode. For example, when the driving support unit 13 selects the normal support mode, the predetermined time may be set to 1 second, and when the delay support mode is selected, the predetermined time may be set to 3 seconds. Not limited to. When the delay support mode is executed, the driving support unit 13 uses the display 5d so that the deceleration amount of the traveling speed at the time of pausing is slower than that when the normal support mode is executed. You may instruct. According to this, traffic safety will be improved.

(8) When the traffic light driving support unit 13 executes the delay support mode, the light color of the traffic light in front of the own vehicle 2 in the traveling direction changes from blue to yellow as compared with the case of executing the normal support mode. Instruct the user to stop at the position corresponding to the traffic light at an earlier timing, for example, via the display 5d. The light color of the traffic light in front of the own vehicle 2 in the traveling direction may be acquired via means such as road-to-vehicle communication (not shown), and the timing at which the light color of the traffic light in front of the own vehicle 2 in the traveling direction changes from blue to yellow. Earlier, the user may be instructed via the display 5d to stop at a position corresponding to the traffic light. According to this, traffic safety will be improved.

(9) Intersection approach speed When executing the delay support mode, the driving support unit 13 determines the vehicle speed when entering the intersection ahead of the traveling direction of the own vehicle 2 as compared with the case of executing the normal support mode. The user is instructed, for example, via the display 5d to decelerate more and then enter. According to this, traffic safety will be improved.

Although the first embodiment has been described above, the first embodiment has the following features.

The driving support system 1 supports the driving of the own vehicle 2 when the own vehicle 2 and the other vehicle 3 move to a common destination 4. In the driving support system 1, the own vehicle arrival estimated time calculation unit 17 as the own vehicle arrival estimated time acquisition unit that acquires the own vehicle arrival estimated time when the own vehicle 2 arrives at the destination 4, and the other vehicle 3 are the destination 4 The other vehicle arrival estimated time acquisition unit 19 that acquires the other vehicle arrival estimated time arriving at, and the driving support unit 13 that supports the driving of the own vehicle 2 based on the own vehicle arrival estimated time and the other vehicle arrival estimated time. To be equipped. According to the above configuration, when a plurality of vehicles head for a common destination, it is possible to suppress a deviation in the arrival time at the destination 4 among the plurality of vehicles. In addition, the user-friendly driving support for driving the own vehicle 2 should be provided by giving priority to the fuel efficiency, traffic safety, driving comfort, and alleviation of driving fatigue of the own vehicle 2 rather than the arrival time at the destination 4. Can be done.

In the present embodiment, the driving support device 5 which is a single device includes the own vehicle arrival estimated time calculation unit 17, the other vehicle arrival estimated time acquisition unit 19, and the driving support unit 13. The element may be realized by distributed processing among a plurality of devices.

Further, when the own vehicle 2 and the other vehicle 3 move to the common destination 4, the driving support method for supporting the driving of the own vehicle 2 includes the own vehicle arrival estimated time acquisition step (S200) and the other vehicle arrival estimated time. The acquisition step (S240) and the driving support step (S150) are included. According to the above method, when a plurality of vehicles head for a common destination, it is possible to suppress a deviation in the arrival time at the destination 4 among the plurality of vehicles.

In the first embodiment, the driving support content of the own vehicle 2 may be changed according to the difference between the estimated arrival time of the own vehicle and the estimated arrival time of another vehicle. For example, if the difference is one hour or more, the driving support unit 13 can adopt a guidance route that does not include the expressway when the current guidance route includes the expressway. On the other hand, if the difference is about 10 minutes, the driving support unit 13 may propose, for example, to display the location of the convenience store on the display 5d and to take a short break.

(Second Embodiment)
Hereinafter, the second embodiment of the present disclosure will be described with reference to FIG. Hereinafter, the present embodiment will be mainly described as being different from the first embodiment, and overlapping description will be omitted.

In the first embodiment, as shown in FIG. 2, the driving support unit 13 is composed of a route search unit 13a and a route guidance unit 13b. On the other hand, in the present embodiment, as shown in FIG. 5, the driving support unit 13 is composed of a route search unit 13a and an automatic driving unit 13c. The automatic driving unit 13c automatically controls at least a part or all of the driving operations including the accelerator operation, the brake operation, and the steering wheel operation of the own vehicle 2. The automatic driving unit 13c controls the operation of the own vehicle 2 so that the own vehicle 2 travels along the route specified by the route search unit 13a.

Hereinafter, specific contents of driving support when the driving support unit 13 in the present embodiment selects the delay support mode will be illustrated.

(1) Vehicle speed and vehicle acceleration When the delay support mode is executed, the vehicle speed and vehicle acceleration automatic driving unit 13c suppresses the vehicle speed or vehicle acceleration of the own vehicle 2 as compared with the case where the normal support mode is executed. Controls the operation of vehicle 2.

(2) Inter-vehicle distance The automatic driving unit 13c controls the operation of the own vehicle 2 when the delay support mode is executed so that the inter-vehicle distance from the preceding vehicle is longer than when the normal support mode is executed. To do.

(3) The temporary stop automatic driving unit 13c operates the own vehicle 2 so that when the delay support mode is executed, the stop time at the time of the temporary stop is longer than when the normal support mode is executed. Control.

(4) When the automatic traffic light driving unit 13c executes the delay support mode, the light color of the traffic light in front of the own vehicle 2 in the traveling direction changes from blue to yellow as compared with the case where the normal support mode is executed. In addition, the operation of the own vehicle 2 is controlled so as to stop at a position corresponding to the traffic light at an earlier timing.

(5) Intersection approach speed When executing the delay support mode, the automatic driving unit 13c determines the vehicle speed when approaching the intersection ahead of the traveling direction of the own vehicle 2 as compared with the case of executing the normal support mode. The operation of the own vehicle 2 is controlled so that the vehicle enters after decelerating more.

Although the first and second embodiments have been described above, these embodiments can be changed as follows, for example.

For example, the driving support unit 13 may propose to the user to actively use other environmentally friendly means of transportation such as car sharing and railroad when executing the delay support mode.

Further, the automatic driving unit 13c may allow overtaking accompanied by a lane change when executing the normal support mode.

In the above example, the program can be stored and supplied to a computer using various types of non-transitory computer readable media. Non-transitory computer-readable media include various types of tangible storage media. Examples of non-temporary computer-readable media include magnetic recording media (eg, flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (eg, magneto-optical disks). Examples of non-temporary computer-readable media further include CD-ROMs (Read Only Memory), CD-Rs, CD-R / Ws, semiconductor memories (eg, mask ROMs, etc.) of non-temporary computer-readable media. Examples further include PROM (Programmable ROM), EPROM (Erasable PROM), flash ROM, RAM (random access memory)). The program may also be supplied to the computer by various types of transient computer readable media. Examples of temporary computer-readable media include electrical, optical, and electromagnetic waves. The temporary computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.

1 Driving support system 2 Own vehicle 3 Other vehicle 4 Destination 5 Driving support device 5d Display 5e Touch panel 6 Support server 10 Destination setting unit 11 Confluence Other vehicle setting unit 12 Current location acquisition unit 13 Driving support unit 13a Route search unit 13b Route guidance Unit 13c Automatic driving unit 15 Required time calculation unit 16 Current time acquisition unit 17 Own vehicle arrival estimated time calculation unit 18 Own vehicle arrival estimated time transmission unit 19 Other vehicle arrival estimated time acquisition unit 20 Merged vehicle management unit 21 Merged vehicle arrival estimated time DB
22 Estimated arrival time acquisition unit 23 Estimated arrival time transmission unit

Claims (9)

A driving support system that assists the driving of the own vehicle when the own vehicle and one or more other vehicles move to a common destination.
The own vehicle arrival estimated time acquisition unit that acquires the own vehicle arrival estimated time when the own vehicle arrives at the destination, and
The other vehicle arrival estimated time acquisition unit that acquires the other vehicle arrival estimated time when the other vehicle arrives at the destination, and
A normal support mode for assisting the driving of the own vehicle when the estimated arrival time of the own vehicle is later than or the same as the estimated arrival time of the other vehicle based on the estimated arrival time of the own vehicle and the estimated arrival time of the other vehicle. A driving support unit that selectively executes the delay support mode that assists the driving of the own vehicle when the estimated arrival time of the own vehicle is earlier than the estimated arrival time of the other vehicle of at least one of the other vehicles. When,
With,
Driving support system. The driving support system according to claim 1.
The driving support unit
When the delay support mode is executed, the driving of the own vehicle is assisted so as to suppress the vehicle speed or the vehicle acceleration of the own vehicle as compared with the case of executing the normal support mode.
Driving support system. The driving support system according to claim 1 or 2.
When the delay support mode is executed, the driving support unit supports the driving of the own vehicle so that the distance between the vehicle and the preceding vehicle is longer than when the normal support mode is executed.
Driving support system. The driving support system according to any one of claims 1 to 3.
When the delay support mode is executed, the driving support unit causes the own vehicle to travel on a route that avoids a traffic jam-prone section or an accident-prone section as compared with the case of executing the normal support mode. Supporting the driving of the own vehicle,
Driving support system. The driving support system according to any one of claims 1 to 4.
When the delay support mode is executed, the driving support unit drives the own vehicle so that the own vehicle travels on a route having a less signal or a gradient as compared with the case of executing the normal support mode. Support,
Driving support system. The driving support system according to any one of claims 1 to 5.
When executing the delay support mode, the driving support unit proposes a break, refueling, or charging of the in-vehicle battery more frequently than when executing the normal support mode. To support the driving of the own vehicle,
Driving support system. The driving support system according to any one of claims 1 to 6.
When the delay support mode is executed, the driving support unit supports the driving of the own vehicle so that the stop time at the time of pausing is longer than when the normal support mode is executed.
Driving support system. It is a driving support method that supports the driving of the own vehicle when the own vehicle and one or more other vehicles move to a common destination.
The own vehicle arrival estimated time acquisition step for acquiring the own vehicle arrival estimated time when the own vehicle arrives at the destination, and
The other vehicle arrival estimated time acquisition step of acquiring the other vehicle arrival estimated time when the other vehicle arrives at the destination, and
A normal support mode for assisting the driving of the own vehicle when the estimated arrival time of the own vehicle is later than or the same as the estimated arrival time of the other vehicle based on the estimated arrival time of the own vehicle and the estimated arrival time of the other vehicle. A driving support step that selectively executes the delay support mode that assists the driving of the own vehicle when the estimated arrival time of the own vehicle is earlier than the estimated arrival time of the other vehicle of at least one of the other vehicles. When,
including,
Driving support method. A program for causing a computer to execute the driving support method according to claim 8.

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