WO2014054536A1 - On-board device and navigation method - Google Patents

Abstract

This on-board device is characterized by being provided with: passive motion mechanisms (21, 22, 11, 12, 13) disposed in a seat device (100) in which a passenger sits, for changing the posture of the passenger in such a way as to change the amount of motion of the passenger due to passive motion during driving of a vehicle; a prospective route search means (400) for respectively searching for a plurality of routes leading to a target destination as prospective routes; a prediction means (400) for predicting the passenger's level of motion of passive motion by the passive motion mechanisms (21, 22, 11, 12, 13) in the event of the vehicle being driven over the prospective routes; and a route selection means (400) for selecting a recommended route from among the plurality of prospective routes, on the basis of passenger's level of motion of to passive motion, that was predicted by the prediction means (400).

Description

In-vehicle device and navigation method

The present invention relates to an in-vehicle device and a navigation method.
This application claims priority based on Japanese Patent Application No. 2012-220983, filed on October 3, 2012. For designated countries that are allowed to be incorporated by reference, The contents described in the application are incorporated into the present application by reference and made a part of the description of the present application.

Conventionally, there has been known a seat device that supports the occupant's posture by detecting the occupant's posture and controlling the seat cushion and the seat back according to the occupant's posture in order to improve the riding comfort of the moving body. (Patent Document 1).

JP 2006-8098 A

It is desirable to perform a certain amount of exercise to maintain and improve health. However, when riding in a vehicle, the movement of the occupant is limited, and there is a problem that the amount of exercise necessary for maintaining and improving health cannot be obtained. In particular, the conventional technology reduces the exercise load applied to the occupant by traveling the vehicle (muscle load necessary for the occupant to maintain the posture during vehicle travel) by supporting the occupant's posture. Among them, it was difficult for the passengers to obtain the amount of exercise necessary to maintain and improve their health.

The problem to be solved by the present invention is to provide an in-vehicle device that searches for a route through which an occupant can appropriately perform passive motion.

The present invention is installed in a seat device on which an occupant sits, and the vehicle is driven to a destination while driving a passive motion mechanism for changing the occupant's posture so that the momentum due to the passive motion of the occupant changes while the vehicle is traveling. The above problem is solved by predicting the occupant's passive exercise momentum for each route when driving the route leading to, and determining the recommended route from a plurality of routes based on the predicted passive exercise momentum .

According to the present invention, it is possible to search for a recommended route that allows an occupant to appropriately perform passive exercise from a plurality of routes by predicting the amount of exercise by the occupant's passive exercise for each route.

It is a block diagram which shows the navigation system which concerns on this embodiment. It is a lineblock diagram showing the sheet device concerning a 1st embodiment. It is a graph which shows an example of the relationship between the protrusion amount to the passenger | crew side of a thoracic-vertebra part airbag, and the air supply amount supplied in a thoracic-vertebra part airbag. It is the schematic which shows the side surface of the sheet | seat apparatus which concerns on this embodiment. It is a figure for demonstrating the determination method of a recommendation path | route. It is a flowchart which shows the navigation process which concerns on this embodiment. It is a block diagram which shows the sheet | seat apparatus which concerns on 2nd Embodiment.

<< First Embodiment >>
Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In this embodiment, a navigation system mounted on a vehicle will be described as an example. Here, FIG. 1 is a block diagram illustrating a configuration of a vehicle 1 (hereinafter, also referred to as a host vehicle 1) provided with the navigation system according to the present embodiment. As shown in FIG. 1, the vehicle 1 includes a seat device 100, an input device 200, a map database 300, a control device 400, and a presentation device 500. These devices are connected by a CAN (Controller Area Network) or other vehicle-mounted LAN, and exchange information with each other.

FIG. 2 is a view showing the sheet apparatus 100 according to the present embodiment. A seat device 100 according to the present embodiment is mounted on a vehicle 1 so that an occupant riding the vehicle 1 can be seated. The seat device 100 described below may be applied to a seat device in a driver seat where a driver is seated, or may be applied to a seat device in a seat where a passenger other than the driver is seated. .

As shown in FIG. 2, when the occupant sits on the seat device 100, the seat device 100 includes a seat cushion 10 that supports the lower body of the occupant, a seat back 20 that supports the upper body of the occupant, and the head of the occupant. It is comprised from the headrest 30 which supports.

The seat back 20 is provided with a thoracic vertebra airbag 21 and a lumbar airbag 22 as shown in FIG. Specifically, the thoracic portion airbag 21 is provided at a position corresponding to the thoracic vertebra of the occupant when the occupant leans against the seat back 20, and the lumbar portion airbag 22 is disposed on the seat back 20. It is provided at a position corresponding to the lumbar spine of the occupant when leaning.

In addition, the thoracic spine airbag 21 is connected to the air pump 40 via the hose 41. The shape of the thoracic vertebra part airbag 21 is variable by sending air into the thoracic vertebra part airbag 21 or discharging air from the thoracic part airbag 21 by the air pump 40. Similarly, the lumbar portion airbag 22 is connected to the air pump 40 via the hose 42, and air is sent into the lumbar portion airbag 22 by the air pump 40 or air is discharged from the lumbar portion airbag 22. Thus, the shape of the lumbar portion airbag 22 is variable.

For example, when air is supplied into the thoracic spine airbag 21 by the air pump 40, the thoracic spine airbag 21 swells and protrudes in the occupant direction (X-axis direction). Here, FIG. 3 is a diagram illustrating an example of a relationship between the air supply amount supplied by the air pump 40 and the protrusion amount of the thoracic vertebra part airbag 21 when the occupant is seated on the seat device 100. FIG. 3 also shows an example of the relationship between the air supply amount supplied by the air pump 40 and the air pressure in the thoracic vertebra airbag 21. For example, in the example shown in FIG. 3, when the supply of air from the air pump 40 to the thoracic vertebra part airbag 21 is started, the thoracic vertebra part airbag 21 starts to protrude in the occupant direction (X-axis direction). As a result, the protruding thoracic vertebra airbag 21 pushes a part of the occupant's body in the X-axis direction, and as a result, the posture of the occupant is changed so that the momentum due to the passive movement of the occupant during vehicle travel increases. be able to. In the example shown in FIG. 3, when the air supply amount by the air pump 40 exceeds a predetermined amount Qp, the thoracic portion airbag 21 is pushed back by the occupant's body, thereby suppressing the protrusion of the thoracic portion airbag 21. The air pressure in the thoracic spine airbag 21 is increased. That is, the rate at which the thoracic portion airbag 21 projects in the occupant direction (X-axis direction) with respect to the amount of air supplied from the air pump 40 decreases, and the rate at which the air pressure within the thoracic portion airbag 21 increases.

Similarly, when air is supplied into the lumbar airbag 22 by the air pump 40, the lumbar airbag 22 swells and begins to protrude in the occupant direction (X-axis direction). As a result, the protruded lumbar portion airbag 22 pushes a part of the occupant's body in the X-axis direction, and as a result, the occupant's posture is changed so that the momentum due to the passive movement of the occupant during vehicle travel increases. be able to.

That is, by projecting the thoracic vertebra airbag 21 and lumbar airbag 22 in the occupant direction (X-axis direction), the contact area between the upper body of the occupant and the seat back 20 is reduced. Therefore, when the vehicle 1 changes lanes or runs a curve with the thoracic vertebra airbag 21 or lumbar airbag 22 protruding in the occupant direction (X-axis direction), the upper body of the occupant is caused by the centrifugal force. Becomes easier to move in the lateral direction (substantially in the Y-axis direction), and the exercise load (muscle load) necessary for the occupant to maintain the posture can be increased. In the present embodiment, the amount of protrusion of the thoracic vertebra airbag 21 and lumbar airbag 22 can be freely adjusted by the control of the control device 300 to be described later, and the thoracic airbag 21 and lumbar airbag. The amount of exercise in the passive movement of the occupant can be adjusted according to the amount of protrusion 22.

In the seat device 100 according to the present embodiment, the thoracic portion airbag 21 and the lumbar portion airbag 22 may be projected at the same time, or one of the thoracic portion airbag 21 and the lumbar portion airbag 22. It is also possible to protrude only. For example, when the thoracic portion airbag 21 and the lumbar portion airbag 22 are projected at the same time, compared to the case where only one of the thoracic portion airbag 21 and the lumbar portion airbag 22 is projected, Since the contact area of the seat surface is smaller, the momentum due to passive movement of the occupant can be further increased.

Further, when the thoracic vertebra airbag 21 or the lumbar vertebra airbag 22 protrudes toward the passenger (X-axis direction), the air pump 40 discharges air from the thoracic vertebra airbag 21 or lumbar airbag 22. The protruding amount of the thoracic vertebra part airbag 21 and the lumbar part airbag 22 can be reduced. For example, when the protrusion amount of the thoracic vertebra part airbag 21 and the lumbar part airbag 22 is set to zero, the contact area between the occupant's upper body and the seat back 20 is increased, and the occupant's upper body is supported by the entire seat back 20. Therefore, when the vehicle is running, the upper body of the occupant becomes difficult to move in the lateral direction (Y-axis direction), and the exercise load (muscle load) necessary for the occupant to maintain the posture is reduced. Can do.

Further, as shown in FIG. 2, the seat cushion 10 is provided with a seat surface rear portion airbag 11. Specifically, the seat surface rear portion airbag 11 is located behind the center of the seat cushion 10 or the center of the seat cushion 10 (X-axis negative direction side), and when the occupant sits on the seat cushion 10 It is provided at a position corresponding to the occupant's buttocks.

The seat surface rear part airbag 11 is connected to the air pump 40 via the hose 43, and air is sent into the seat surface rear part airbag 11 by the air pump 40, or air is sent from the seat surface rear part airbag 11. By discharging, the shape of the seat surface rear portion airbag 11 is variable.

For example, when air is supplied into the seat surface rear portion airbag 11 by the air pump 40, the seat surface rear portion airbag 11 expands and protrudes in the passenger direction (Z-axis direction). And by making the seat surface rear part airbag 11 project in the occupant direction (Z-axis direction) in this way, the contact area between the lower body of the occupant and the seat cushion 10 is reduced, which allows the vehicle to change lanes or curve The occupant's body is easy to move back and forth and left and right (X-axis direction and Y-axis direction) due to the centrifugal force when traveling and the inertial force when the vehicle accelerates or decelerates. It is possible to increase the exercise load (muscle load) necessary for maintaining the balance. As described above, the seat device 100 according to the present embodiment increases the momentum in the passive motion of the occupant using the kinetic energy of the vehicle by causing the seat surface rear portion airbag 11 to protrude in the occupant direction (Z-axis direction). Can be made.

On the other hand, when the seat back portion airbag 11 protrudes toward the occupant side, the air pump 40 discharges air from the seat back portion airbag 11 to reduce the protrusion amount of the seat back portion airbag 11. can do. For example, when the protrusion amount of the seat back portion airbag 11 is set to zero, the contact area between the lower body of the occupant and the seat cushion 10 is increased, and the body pressure distribution of the lower body of the occupant is equal in the seat cushion 10. The lower body of the occupant can be supported by the entire seat cushion 10. Therefore, when the host vehicle 1 is traveling, the occupant's body is difficult to move back and forth, left and right (X-axis direction, Y-axis direction), and the exercise load (muscle load) necessary for the occupant to maintain the posture is increased. Can be reduced. In the present embodiment, the amount of protrusion of the seat surface rear portion airbag 11 can be freely adjusted by the control of the control device 300 described later, and according to the amount of protrusion of the seat surface rear portion airbag 11, The amount of exercise by passive movement of the occupant can be adjusted.

In addition, as shown in FIG. 2, the seat cushion 10 is provided with a pair of seat surface front portion airbags 12 and 13. Specifically, the pair of seat surface front portion airbags 12 and 13 are in front of the center of the seat cushion 10 (X-axis positive direction side), and when the occupant is seated on the seat cushion 10, It is provided at a position corresponding to each thigh.

The seat front portion airbags 12 and 13 are connected to the air pump 40 via hoses 44 and 45. Then, the air pump 40 feeds air into the seat front part airbags 12 and 13, or discharges air from the seat front part airbags 12 and 13, thereby forming the shape of the seat front part airbags 12 and 13. Is variable.

Here, FIG. 4 is a schematic view showing the side surface of the seat device 100 according to the first embodiment (showing the seat device 100 viewed from the Y-axis direction), and FIG. FIG. 4B shows the seat apparatus 100 in a scene where a sufficient amount of air is supplied to the backs 12 and 13, and FIG. 4B discharges a sufficient amount of air from the seat front part airbags 12 and 13. The sheet apparatus 100 of the scene which carried out is shown.

For example, as shown in FIG. 4 (A), when a sufficient amount of air is supplied into the seat front part airbags 12 and 13, the seat front part airbags 12 and 13 are inflated and occupant direction ( It projects in the direction of the substantially Z axis). Thus, when a sufficient amount of air is supplied into the seat front part airbags 12 and 13, the seat front part airbags 12 and 13 protrude in the occupant direction (substantially Z-axis direction). Thereby, the seat surface of the seat cushion 10 can be made substantially horizontal. Thereby, the exercise | movement load (muscle load) of a passenger | crew at the time of vehicle travel is reduced, and a passenger | crew can perform a driving | operation appropriately.

On the other hand, as shown in FIG. 4 (B), when a sufficient amount of air is discharged from the seat front part airbags 12 and 13, the occupant direction of the seat front part airbags 12 and 13 ( The amount of protrusion in the (substantially Z-axis direction) is zero. Therefore, as shown in FIG. 4B, the seat surface of the seat cushion 10 is inclined forward (X-axis direction) as a whole. Thus, when the seat surface of the seat cushion 10 is tilted forward, the posture of the occupant seated on the seat cushion 10 is also tilted forward (in the X-axis direction). For example, inertia when the vehicle is accelerated or decelerated The force makes it easier for the occupant's body to move in the front-rear direction (X-axis direction), and the exercise load (muscle load) necessary for the occupant to maintain the posture can be increased. In particular, by tilting the posture of the occupant forward so that the occupant does not approach the seat back 20, it is possible to further increase the exercise load (muscle load) necessary for the occupant to maintain the posture. As described above, the seat device 100 according to the present embodiment uses the kinetic energy of the vehicle by discharging air from the seat front part airbags 12 and 13 and tilting the seat cushion 10 forward. The amount of exercise in the passive movement of the occupant can be increased.

The air pump 40 is connected to the hoses 41 to 45, respectively, and through these hoses 41 to 45, the thoracic vertebra part airbag 21, the lumbar vertebra part airbag 22, the seat surface rear part airbag 11, and a pair of seat surface fronts are provided. Air is sent into the part airbags 12 and 13, or the thoracic part airbag 21, the lumbar part airbag 22, the seat rear part airbag 11, and the pair of seat front part airbags 12 and 13. Can be discharged. The air pump 40 may be a dedicated air pump for adjusting the amount of air in each of the airbags 21, 22, 11, 12, and 13, or may be an air pump that is also used as an in-vehicle air conditioner or the like. Also good.

As shown in FIG. 2, air valves 51 to 55 are provided in the respective hoses 41 to 45, respectively. By controlling the opening and closing of the air valves 51 to 55 by a control device 300 described later, the air valves 51 to 55 are controlled. The amount of air can be adjusted for each of the backs 21, 22, 11, 12, and 13.

Returning to FIG. 1, the input device 200 is, for example, a device such as a microphone that can be input by the occupant's voice, or a touch panel or joystick that is arranged on a display screen that can be input by the occupant's manual operation. The occupant can input information for determining a recommended route to the destination as input information via the input device 200. Such input information includes, for example, the destination, the travel distance to the destination, the required time to the destination, and the amount of passive motion desired by the occupant (for example, the average motion intensity of the passive motion, the passive motion Information such as maximum exercise intensity and passive exercise time).

For example, the occupant can input the distance to the destination as “close”, “far”, “within 10 km” or the like via the input device 200, and the required time to the destination is “within 60 minutes”. And so on. Furthermore, the occupant can input the exercise intensity of the passive motion desired by the occupant as “strong”, “medium”, “weak”, “2METs”, etc. via the input device 200. The exercise intensity can be input as “3METs”. As will be described later, the input information input by the input device 200 is transmitted to the control device 400, and the route most suitable for the input information is determined as the recommended route. Note that “METs”, which is a unit indicating exercise intensity, is based on oxygen intake per unit time, and the higher the value, the greater the amount of passive exercise. Moreover, input information is not limited to said information, For example, it is good also as a structure containing the calorie consumption which shows the momentum of the passive exercise which a passenger | crew desires. Furthermore, instead of “METs”, a numerical value in units of “exercise” may be input. “Exercise” is a unit indicating the amount of exercise obtained by integrating METs over time. One exercise is performed when 1 METs is exercised continuously for 1 hour. Two hours of exercise will also result in two exercises. By the way, the target value of the exercise guidelines published by the Ministry of Health, Labor and Welfare requires exercise more than 23 exercises every week.

The map database 300 stores map information as well as momentum information of each road. Here, the momentum information is information indicating the momentum of the passive movement of the occupant when the host vehicle 1 travels on a road, and is calculated for each road by the control device 400. In addition, the calculation method of the momentum by the passenger's passive movement on each road will be described later.

The control device 400 includes a ROM (Read Only Memory) in which a program for controlling the seat device 100 is stored, a CPU (Central Processing Unit) that executes the program stored in the ROM, and an accessible storage device. It has a functioning RAM (Random Access Memory). As an operation circuit, instead of or in addition to a CPU (Central Processing Unit), an MPU (Micro Processing Unit), a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), etc. Can be used.

The control device 400 executes a program stored in the ROM by the CPU, thereby obtaining an input information acquisition function for acquiring input information from the input device 200, and a map for acquiring map information and momentum information of each road from the map database 300. An information acquisition function, a candidate route search function for searching for a candidate route to the destination, a recommended route determination function for determining a recommended route of the host vehicle 1 from the candidate routes, and the host vehicle 1 traveling on a road The momentum calculating function for calculating the momentum of the passive movement of the occupant at the time and the movement control function for controlling the airbags 21, 22, 11, 12, and 13 to change the posture of the occupant are realized. Below, each function with which the control apparatus 400 is provided is demonstrated.

The input information acquisition function of the control device 400 acquires input information input via the input device 200 by a passenger. The input information acquired by the input information acquisition function includes the destination, the travel distance to the destination, the required time to the destination, the amount of passive movement desired by the occupant (for example, average exercise intensity, maximum exercise intensity, and Information such as exercise time). Further, the input information acquisition function may be configured to acquire the required time to the destination as the exercise time of the passive exercise.

The map information acquisition function of the control device 400 acquires map information and momentum information for each road from the map database 300. This momentum information is information indicating the momentum of passive exercise on each road calculated by the momentum calculation function described later.

The candidate route search function searches each of a plurality of routes reaching the destination as candidate routes based on the input information acquired by the input information acquisition function and the map information acquired by the map information acquisition function. Specifically, the candidate route search function searches a plurality of routes satisfying the destination, the travel distance to the destination, the required time to the destination, etc. as candidate routes from the input information input by the occupant. For example, when the required time to reach the destination is entered by the occupant as “within 60 minutes” and the travel distance to the destination is entered as “within 10 km”, the candidate route search function displays the destination entered by the occupant. A plurality of routes that can reach the destination within “60 minutes” and have a travel distance of “within 10 km” are searched for as candidate routes.

The recommended route determination function of the control device 400 determines, as a recommended route, a route most suitable for the input information input by the occupant from among a plurality of candidate routes searched by the candidate route search function. Specifically, the recommended route determination function is based on the momentum information of each road acquired by the map information acquisition function, and the amount of exercise due to the passive motion of the occupant when traveling on each candidate route (for example, traveling on each candidate route) Predicted average exercise intensity, maximum exercise intensity, and exercise time). The recommended route determination function is, for example, the average exercise intensity, the maximum exercise intensity, and the exercise time of the passive exercise in each predicted candidate route, and the average exercise intensity of the passive exercise desired by the occupant acquired by the input information acquisition function. The maximum exercise intensity and the exercise time are collated, and a candidate route most suitable for the input information input by the occupant is determined as a recommended route from among a plurality of candidate routes.

Here, FIG. 5 is a diagram for explaining a method for determining a recommended route. In the example shown in FIG. 5, the average exercise intensity of the passive exercise is compared with the route A having a relatively high average exercise intensity of the passive exercise. An example is shown in which a low-estimated route B is searched as a candidate route. For example, in the example illustrated in FIG. 5, when the occupant inputs the average exercise intensity of the passive exercise as “high” via the input device 200, the recommended route determination function is a candidate route with a high average exercise intensity of the passive exercise. Among A and candidate path B with low passive exercise intensity, candidate path A with high passive exercise intensity can be determined as a recommended path. In the example of the scene shown in FIG. 5, for example, when the maximum exercise intensity of the passive movement in the candidate path A exceeds the maximum exercise intensity of the passive movement input by the occupant, the recommended path determination function selects the candidate path B. It can be determined as a recommended route.

Furthermore, the recommended route determination function determines the recommended route in consideration of the fuel consumption to the destination. For example, when the occupant inputs the average exercise intensity due to the passive movement of the occupant as “2 METs” and the maximum exercise intensity as “3 METs” via the input device 200, the recommended route determination function has a plurality of candidates that satisfy these conditions. Among the routes, a candidate route with the lowest fuel consumption can be determined as a recommended route. Then, the recommended route determined by the recommended route determination function is transmitted to the presentation device 500 and presented to the occupant.

The re-search determination function of the control device 400 determines whether or not to re-search the recommended route. For example, the re-search determination function determines a recommended route suitable for newly input information when the vehicle 1 is traveling on the recommended route and new input information is input by the occupant. In order to do so, it is decided to re-search the recommended route. The re-search determination function obtains the amount of passive motion desired by the occupant in the current recommended route from the posture of the occupant detected based on the output of a pressure sensor embedded in a camera (not shown) or the seat device 100. If it is determined that it is not, it can be determined that the recommended route is re-searched so that the amount of passive motion desired by the passenger can be obtained. Furthermore, if the re-search determination function determines that it cannot reach the destination in the required time entered by the occupant when traveling on the current recommended route from the current time, It is possible to decide to re-search the recommended route so that the destination can be reached. In addition, the re-search determination function can determine that the recommended route is re-searched even when the occupant instructs the recommended route to be searched again via the input device 200.

The motion control function of the control device 400 controls the driving of the thoracic portion airbag 21, the lumbar portion airbag 22, and the seat back portion airbag 11, so that the occupant can appropriately perform passive motion. Change the posture. For example, the motion control function opens the air valves 51, 52, and 53 in the seat device 100 on which the driver is seated when the driver's driving load is low, such as when the vehicle is traveling on a highway. By operating the air pump 40 so as to supply air into the thoracic vertebra airbag 21, lumbar vertebra airbag 22, and rear seat airbag 11, the thoracic airbag 21, lumbar airbag 22, seat The protruding amount of the rear airbag 11 is increased. As a result, when the driver's driving load is low, the driver's posture can be changed so that the exercise load (muscle load) necessary for the driver to maintain his / her posture increases. Similarly, when the driver's driving load is low, the motion control function opens the air valves 54 and 55 and causes the air pump 40 to discharge air from the pair of seat surface front airbags 12 and 13. By operating, the posture of the driver can be changed so that the seat cushion 10 is tilted forward and the exercise load (muscle load) necessary for the driver to maintain the posture increases.

On the other hand, when the driver's driving load is high, for example, when the vehicle is traveling on a narrow street, the motion control function enables the air valves 51, 52, 53 in the seat device 100 on which the driver is seated. The thoracic vertebrae airbag 21, the lumbar vertebrae airbag 22, and the lumbar vertebrae airbag 22, The protrusion amount of the seat surface rear portion airbag 11 is reduced. As a result, the driver's body is supported by the entire seat cushion 10 and the entire seat back 20, and the posture of the driver is changed so that the exercise load (muscle load) necessary for the driver to maintain the posture is reduced. Can be made. Similarly, when the driving load on the driver is high, the motion control function opens the air valves 54 and 55 and supplies sufficient air into the seat front portion airbags 12 and 13. By moving the seat cushion 10, the seat cushion 10 has a seating surface tilted substantially horizontally (or tilted so that the seat cushion sinks backward from substantially horizontal), and the exercise load (muscle load) necessary for the driver to maintain his / her posture is maintained. The driver's posture can be changed to reduce. The driving control function can determine whether or not the vehicle 1 is traveling on a highway or a narrow street based on the map information acquired by the map information acquisition function.

The momentum calculation function of the control device 400 calculates the momentum of passive movement for each road when the host vehicle 1 travels on the road. Specifically, the momentum calculation function calculates the amount of momentum generated by the passive movement of the occupant for each road based on the number of corners on the road on which the host vehicle 1 has traveled, the number of brakes, whether the road is on a slope, the width of the road, and the like. calculate. For example, the momentum calculation function is such that the greater the number of corners of the road on which the host vehicle 1 is traveling, the greater the number of brakes, the more the slope is, the narrower the width of the road, Etc. and the load (acceleration) applied to the occupant increases, so the momentum due to the passive motion of the occupant on such a road is calculated high. In addition, since the load (acceleration) applied to the occupant changes depending on the travel speed, the amount of exercise is calculated using the vehicle speed from the travel history and the average travel speed of a general vehicle in addition to the road speed limit value. May be.

Further, the momentum calculation function calculates the momentum in the passive movement of the occupant in consideration of the control of the airbags 21, 22, 11, 12, and 13 by the movement control function. For example, when traveling on a road, the movement control function reduces the amount of protrusion of the thoracic vertebra airbag 21, lumbar vertebra airbag 22, and rear seat airbag 11 toward the occupant side, and passive movement of the occupant When the amount of exercise due to decreases, the amount of exercise due to the passive movement of the occupant is calculated accordingly. Then, the momentum calculation function stores information on the calculated momentum of the passive exercise in the map database 300 as the amount of exercise information in association with the road that has traveled.

The presentation device 500 presents the recommended route determined by the control device 400 to the occupant. The presentation device 500 is not particularly limited, and examples thereof include a display that displays a recommended route together with map information and a speaker that guides the recommended route by voice. In addition, the presentation device 500 may be a display having the touch panel type input device 200.

Next, the navigation process according to this embodiment will be described. FIG. 6 is a flowchart showing the navigation processing according to the present embodiment.

First, in step S101, input information input by a passenger via the input device 200 is acquired by the input information acquisition function of the control device 400. If the input information is acquired, the process proceeds to step S102. If the input information is not obtained, step S101 is repeated.

In step S102, the map information acquisition function of the control device 400 acquires map information and momentum information of each road from the map database 300.

In step S103, the candidate route search function of the control device 400 searches for the candidate route to the destination based on the input information acquired in step S101 and the map information acquired in step S102. For example, the candidate route search function searches a plurality of routes that satisfy the travel distance to the destination and the required time included in the input information as candidate routes.

In step S104, the recommended route determination function of the control device 400 determines the recommended route based on the input information acquired in step S101 and the momentum information of each road acquired in step S102. Specifically, the recommended route determination function first predicts the momentum due to the passive motion of the occupant when traveling on each candidate route searched in step S103, based on the momentum information of each road acquired in step S102. To do. The recommended route determination function includes the amount of passive exercise desired by the occupant (for example, average exercise intensity, maximum exercise intensity, and exercise time) included in the input information, and the occupant predicted in each candidate route. The candidate path most suitable for the input information is determined as a recommended path by collating with the amount of exercise of the passive exercise (for example, the average exercise intensity, the maximum exercise intensity, and the exercise time of the passive exercise).

In step S105, the presentation device 400 presents the recommended route determined in step S104 to the passenger. For example, when the presentation device 400 is a display, the recommended route can be presented to the occupant by displaying the recommended route together with the map information on the display screen.

In step S106, the re-search determination function of the control device 400 determines whether or not to re-search the recommended route. For example, the re-search determination function is used when the input information is newly input, or when the occupant determines that the passive motion suitable for the input information has not been obtained. When it is determined that the destination cannot be reached, it can be determined that the recommended route is re-searched. If it is determined that the recommended route is to be searched again, the process returns to step S102 and a new recommended route is searched. On the other hand, if it is determined not to re-search the recommended route, the process proceeds to step S107.

In step S107, the re-search determination function determines whether or not the host vehicle 1 has arrived at the destination. When it is determined that the host vehicle 1 has arrived at the destination, the navigation process is terminated. On the other hand, when it is determined that the host vehicle 1 has not arrived at the destination, the process returns to step S106 and again. The determination as to whether or not to re-search for the recommended route is repeated.

The control device 400 controls the airbags 21, 22, 11, 12, and 13 by the motion control function and the passive motion of the passengers on each road by the motion amount calculation function even during the navigation processing described above. The momentum is calculated repeatedly. Thus, in the present embodiment, while the vehicle can travel, the occupant can appropriately perform passive exercise, and the amount of exercise information of each road used for determining the recommended route in the above-described navigation process is obtained from the map database. 300 can be accumulated.

As described above, in the present embodiment, the route to the destination is searched as a candidate route, and the passive motion of the occupant by the airbags 21, 22, 11, 12, and 13 when the vehicle 1 travels on the candidate route. Is determined for each candidate route, and the most suitable route for performing the passive motion required by the occupant is determined as a recommended route based on the predicted momentum of the passive motion in each candidate route. Thereby, in this embodiment, when the own vehicle 1 travels on the recommended route, the occupant can obtain the amount of exercise required by the occupant and can appropriately maintain and improve the health of the occupant.

In the present embodiment, the average exercise intensity, the maximum exercise intensity, and the exercise time of the passive exercise in each candidate route are predicted as the amount of exercise of the passive mobility, and the average exercise intensity and the maximum exercise intensity of the passive exercise desired by the occupant are predicted. The recommended route is determined from the plurality of candidate routes by comparing the exercise time and the average exercise intensity, the maximum exercise intensity, and the exercise time of the passive exercise predicted in each candidate route. Thereby, in this embodiment, the recommended path | route which can perform the passive motion which a passenger | crew desires can be determined with a higher precision. Furthermore, in this embodiment, driving energy consumption until reaching the destination can be suppressed by determining the recommended route in consideration of the fuel consumption to the destination.

Further, in the present embodiment, the recommended route most suitable for the input information input by the occupant is presented to the occupant via the presentation device 300, and the occupant desires the occupant to travel along the recommended route. It is possible to appropriately perform the passive exercise of the momentum.

<< Second Embodiment >>
Subsequently, a second embodiment of the present invention will be described. The second embodiment has the same configuration as the first embodiment except that the sheet device 100a is different from the sheet device 100 according to the first embodiment in the points described below. It operates in the same way.

FIG. 7 is a configuration diagram of the sheet apparatus 100a according to the second embodiment. In addition to the configuration of the seat device 100 according to the first embodiment, the seat device 100a according to the second embodiment includes the lumbar support portions 23 and 24 and the side support portions 25 and 26 so that the posture of the occupant does not change by a certain amount or more. , Knee support portions 61 and 62, a heel support portion 71, arm support portions 81 and 82 (not shown), elbow support portions 83 and 84 (not shown), and a neck support portion 31.

As shown in FIG. 7, the lumbar support portions 23 and 24 are respectively provided in regions on the left and right sides of the thoracic airbag 21 and the lumbar airbag 22 corresponding to the vicinity of the lumbar region of the occupant seated on the seat device 100a. ing. The lumbar support portions 23 and 24 are connected to an actuator (not shown), and by driving the actuator, the lumbar support portions 23 and 24 bend toward the front inner side (occupant side). The movement in the direction is suppressed, and the posture of the occupant is prevented from changing more than a certain amount. In addition, each lumbar support part 23 and 24 can operate | move independently. Moreover, the actuator which operates the lumbar support parts 23 and 24 employs a reversible actuator that is reversibly driven such as an electric motor. As a result, the lumbar support parts 23 and 24 are reversibly operated to the passenger side. It is possible to return to the normal state from the protruding state.

As shown in FIG. 7, the side support portions 25 and 26 are provided in regions outside the thoracic vertebra portion airbag 21, the lumbar portion airbag 22, and the lumbar support portions 23 and 24, respectively. Actuators (not shown) are connected to the side support portions 25 and 26. By driving the actuators, the side support portions 25 and 26 bend forward inward (occupant side) and the occupant's upper body moves in the lateral direction. It is possible to prevent the occupant's posture from changing more than a certain amount. In addition, each side support part 25 and 26 can operate | move independently. Moreover, the actuator which operates the side support parts 25 and 26 employ | adopts the reversible actuator which drives reversibly, such as an electric motor, Thereby, the side support parts 25 and 26 project to the passenger | crew side as a reversible operation | movement. It is possible to return from the normal state to the normal state.

The knee support portions 61 and 62 are provided in each of the door and the center console so as to face each other at a height corresponding to the knee portion of the occupant seated on the seat device 100a. Each knee support portion 61, 62 is configured to be able to protrude toward the occupant side, and is connected to an actuator (not shown). By driving this actuator, the knee support portion 61, 62 protrudes toward the occupant side. The knee support portions 61 and 62 constitute part of the surface shape of the inner panel of the door or the center console in the normal state (initial state), and project toward the occupant side by operating toward the occupant side. To do. As a result, since the end surfaces of the knee support portions 61 and 62 abut against the occupant's knee, the lateral movement of the occupant's legs can be suppressed, and the posture of the occupant can be prevented from changing more than a certain amount. The support performance in the vicinity of the knee can be improved. The individual knee support units 61 and 62 can operate independently. Moreover, the actuator which operates knee support parts 61 and 62 employ | adopts the reversible actuator which drives reversibly, such as an electric motor, Thereby, knee support parts 61 and 62 are set to a passenger | crew side as a reversible operation | movement. It is possible to return to the normal state from the protruding state.

The heel support portion 71 is provided on the floor around the feet of the passenger sitting on the seat device 100a. The heel support portion 71 constitutes a part of the surface shape of the floor around the feet of the occupant in the normal state (initial state). However, the heel support portion 71 is moved toward the occupant side by an actuator (not shown). The front end portion (the end portion on the X-axis direction) of the vehicle rises from the floor to the occupant side, and functions as a stopper that prevents the occupant's posture from changing by a certain amount or more. In other words, the occupant can prevent the posture of the occupant from changing by a certain amount or more by using the protruding heel support portion 71 as a step. In addition, the actuator which operates this heel support part 71 employ | adopts the reversible actuator which drives reversibly, such as an electric motor, Thereby, the heel support part 71 protruded to the passenger | crew side as a reversible operation | movement. It is possible to return from the state to the normal state.

The arm support portions 81 and 82 are provided in each of the door and the center console so as to face each other at a height corresponding to the arm portion of the occupant seated on the seat device 100a. In addition, the elbow support portions 83 and 84 are provided on the door and the center console in such a relationship that they face each other at a height corresponding to the elbow portion of the occupant seated on the seat device 100a. In addition, the arm support portions 81 and 82 and the elbow support portions 83 and 84 are respectively connected to actuators (not shown). By driving the actuators, the arm support portions 81 and 82 and the elbow support portions 83 and 84 are The lateral movement of the occupant's upper body is suppressed, and the occupant's posture is prevented from changing more than a certain amount. The arm support portions 81 and 82 and the elbow support portions 83 and 84 can operate independently. Moreover, the actuator which operates arm support part 81,82 and elbow support part 83,84 employ | adopts the reversible actuator which drives reversibly, such as an electric motor, By this, arm support part 81,82 and elbow support The parts 83 and 84 can return to the normal state from the state of protruding toward the occupant as a reversible operation.

The neck support portion 31 is provided at a position corresponding to the neck portion of the occupant seated on the seat device 100a in the headrest 30. The neck support portion 31 incorporates a wire whose left and right ends can be moved by an actuator (not shown), and the left and right ends of the wire are bent forward inward (occupant side), thereby suppressing the movement of the neck of the occupant. Can be prevented from changing more than a certain amount. The actuator that operates the neck support portion 31 employs a reversible actuator that is reversibly driven such as an electric motor. As a result, the neck support portion 31 is also reversibly operated from a state where it protrudes toward the occupant side. It can return to the state.

In addition to the functions of the first embodiment, the control device 400a according to the second embodiment includes lumbar support parts 23 and 24, side support parts 25 and 26, knee support parts 61 and 62, a heel support part 71, an arm support part 81, 82, elbow support parts 83 and 84, and a function of controlling the operation of the neck support part 31. For example, in the present embodiment, the control device 400a provides the lumbar support so that when the host vehicle 1 is traveling on a narrow street and the driver's driving load is large, the momentum due to the driver's passive motion is reduced. The parts 23 and 24, the side support parts 25 and 26, the knee support parts 61 and 62, the heel support part 71, the arm support parts 81 and 82, the elbow support parts 83 and 84, and the neck support part 31 are operated to the occupant side. As a result, it is possible to prevent the driver's posture from changing by a certain amount or more during traveling of the vehicle, and to support the driver's body in a scene where the driver's driving load is large. In addition, when the host vehicle 1 is traveling on an expressway and the driver's driving load is small, the control device 400a returns the support unit to a normal state so that the driver can obtain a certain momentum. To control.

As described above, the seat device 100a according to the second embodiment includes the lumbar support portions 23 and 24, the side support portions 25 and 26, the knee support portions 61 and 62, the heel support portion 71, the arm support portions 81 and 82, and the elbow support. By providing the portions 83 and 84 and the neck support portion 31 and driving these support portions to the occupant side, the posture of the occupant can be prevented from changing by a certain amount or more.

The embodiment described above is described for facilitating understanding of the present invention, and is not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

For example, in the above-described embodiment, the momentum calculation function of the control device 400 is based on the number of corners of the road on which the host vehicle 1 is traveling, the number of times of braking, whether the road is a slope, the width of the road, and the like. However, for example, the function for calculating the momentum includes the number of corners of the road on which the vehicle 1 is traveling, the number of times of braking, whether the road is a slope, the width of the road, etc. Based on the history information of each road, the momentum of the current passive movement of the occupant is calculated, and the calculated amount of passive movement is stored in the map database 300 as history information. It may be configured to calculate the amount of exercise. For example, the momentum calculation function stores the calculated momentum of the occupant's passive motion as history information each time the vehicle travels on the road, and calculates the average value of the past occupant's passive exercise momentum stored as the history information. It can be calculated as the momentum of the passive movement of the occupant.

Further, in the above-described embodiment, the configuration in which the own vehicle 1 calculates the momentum due to the passive motion of the occupant on each road by actually traveling on the road is exemplified. However, the present invention is not limited to this configuration. The amount of passive movement of the occupant can be stored in the map database 300 in advance. In this case, since the momentum of the passive movement of the occupant on the road can be obtained from the map database 300 even on the road on which the own vehicle 1 is not actually traveling, the road on which the own vehicle 1 has not traveled can be obtained. The path to be included can be determined as the recommended path. Similarly, by collecting the momentum of the passive movement of each road from a plurality of other vehicles in an information center installed outside the vehicle 1, the own vehicle 1 can passively pass passengers on each road from the information center. It is good also as a structure which acquires the exercise amount of an exercise | movement. In this case as well, even if the host vehicle 1 is not actually traveling, the amount of passive motion on the road can be acquired from the information center as long as the other vehicle has traveled. A route including a road on which the host vehicle 1 has never traveled can be determined as a recommended route of the host vehicle 1.

Further, in the above-described embodiment, the configuration in which the candidate route most suitable for the input information input by the input device 200 is determined as the recommended route by the recommended route determination function of the control device 400 is illustrated, but the configuration is limited to this configuration. For example, the recommended route may be determined from among a plurality of candidate routes based on the amount of exercise generally required by the occupant for maintaining and improving health.

In addition, in the above-described embodiment, the control device 400 controls the thoracic vertebra part airbag 21, the lumbar vertebra part airbag 22, the seat surface rear part airbag 11, and the pair of seat surface front part airbags 12 and 13. However, the present invention is not limited to this configuration. For example, when the occupant operates an operation unit (not shown), the thoracic vertebra part airbag 21, the lumbar vertebra part airbag 22, the seat rear part airbag 11, and the pair of seats It is good also as a structure which controls the surface front part airbags 12 and 13. FIG. As a result, the occupant can perform a desired passive motion at a desired timing. Similarly, in the second embodiment described above, the lumbar support parts 23 and 24, the side support parts 25 and 26, the knee support parts 61 and 62, the heel support part 71, the arm support by operating the operation part (not shown) in the occupant. The parts 81 and 82, the elbow support parts 83 and 84, and the neck support part 31 may be operated.

Moreover, in embodiment mentioned above, although the structure which inclines the seat surface of the seat cushion 10 by discharging | emitting air from a pair of seat surface front part airbags 12 and 13 was illustrated, it is not limited to this structure, The following It is good also as such a structure. For example, the seat cushion 10 is configured so that the seat surface of the seat cushion 10 becomes substantially horizontal when a sufficient amount of air is discharged from the pair of seat surface front portion airbags 12 and 13. By supplying a sufficient amount of air to the seat front part airbags 12 and 13, the seat front part airbags 12 and 13 are inflated, and the pair of seat front part airbags 12 and 13 are moved in the passenger direction (Z By projecting in the axial direction), the seat surface of the seat cushion 10 may be tilted rearward, whereby the posture of the occupant may be tilted rearward to increase the momentum due to the passive motion of the occupant. Alternatively, when a sufficient amount of air is discharged from the seat front part airbags 12 and 13, the seat cushion 10 is tilted forward, and the seat front part airbags 12 and 13 have a sufficient amount. When the air is supplied, the seat surface front portion airbags 12 and 13 are configured so that the seat surface of the seat cushion 10 is tilted rearward. It is good also as a structure which inclines the seat surface of the seat cushion 10 by adjusting quantity, and adjusts the momentum in a passenger | crew's passive motion.

Further, the seat device 100 includes any one of the thoracic vertebra part airbag 21, the lumbar vertebra part airbag 22, the seat surface rear part airbag 11, and the pair of seat surface front part airbags 12 and 13. It is good also as a structure, It is good also as a structure provided with combining any 2 or more airbags. Similarly, the seat device 100a includes lumbar support parts 23 and 24, side support parts 25 and 26, knee support parts 61 and 62, heel support parts 71, arm support parts 81 and 82, elbow support parts 83 and 84, and a neck support. It is good also as a structure provided with any one support part among the parts 31, or it is good also as a structure provided with combining any two or more support parts.

The thoracic vertebra part airbag 21, the lumbar vertebra part airbag 22, the seat rear part airbag 11, and the pair of seat front part airbags 12 and 13 according to the above-described embodiment are added to the passive motion mechanism of the present invention. Reference numeral 400 corresponds to candidate route searching means, prediction means, and route determination means of the present invention, and presentation device 500 corresponds to presentation means of the present invention.

DESCRIPTION OF SYMBOLS 100,100a ... Seat apparatus 10 ... Seat cushion 11 ... Seat surface rear part airbag 12, 13 ... Seat surface front part airbag 20 ... Seat back 21 ... Thoracic vertebra part airbag 22 ... Lumbar vertebra part airbag 23, 24 ... Lumber support Part 25, 26 ... Side support part 30 ... Necklace 31 ... Neck support part 40 ... Air pump 41-45 ... Hose 51-55 ... Air valve 61, 62 ... Knee support part 71 ... Heel support part 81, 82 ... Arm support part 83 84 ... Elbow support unit 200 ... Input device 300 ... Map database 400 ... Control device 500 ... Presentation device

Claims (6)

1. A passive motion mechanism that is installed in a seat device on which an occupant is seated, and that changes the posture of the occupant so that the amount of motion due to the passive motion of the occupant during vehicle travel changes;
   Candidate route searching means for searching each of a plurality of routes to the destination as candidate routes;
   Predicting means for predicting, for each candidate path, the amount of passive movement of the occupant by the passive movement mechanism when the vehicle travels along the candidate path.
   An in-vehicle apparatus, comprising: a route determination unit that determines a recommended route from the plurality of candidate routes based on the amount of movement of the passive motion for each candidate route predicted by the prediction unit.
2. The in-vehicle device according to claim 1,
   The route determination unit is configured to select one of the plurality of candidate routes based on the passive exercise momentum required for the occupant in addition to the passive exercise momentum for each candidate route predicted by the prediction unit. An in-vehicle device that determines the recommended route.
3. The in-vehicle device according to claim 2,
   The predicting unit predicts the exercise intensity and the exercise time of the passive motion of the occupant by the passive motion mechanism when the vehicle travels on the candidate route, thereby predicting the momentum of the passive motion on the candidate route. A vehicle-mounted device characterized by:
4. The in-vehicle device according to any one of claims 1 to 3,
   The predicting means predicts a driving energy consumption amount for each candidate route when the vehicle travels on the candidate route,
   The in-vehicle device, wherein the route determination unit determines the recommended route from the plurality of candidate routes in consideration of the drive energy consumption for each candidate route predicted by the prediction unit.
5. The in-vehicle device according to any one of claims 1 to 4,
   The in-vehicle device further comprising a presenting unit for presenting the recommended route determined by the route determining unit to an occupant.
6. Installed in the seat device on which the occupant sits, the passive motion mechanism for changing the posture of the occupant so that the amount of motion due to the passive motion of the occupant changes while the vehicle is running. A navigation method characterized by predicting and determining a recommended route from a plurality of the routes based on the predicted momentum of the passive motion for each route.

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