Vehicle interior device and vehicle

Abstract

The invention provides a vehicle interior device and a vehicle, wherein the vehicle interior device comprises an electric component of which the function can be changed without replacing a control device. A vehicle interior device (M) is provided with an interior member (S), at least one electric component (21) provided in the interior member, and a control device (10) having a control unit (11) for controlling the electric component, a storage unit (12) for storing a first control program (P1) for controlling the electric component as a device for executing a first function, and a communication unit (13) for communicating with the storage unit (12). The control unit controls the electric component as a device for executing a first function by means of a first control program in an initial state, and updates the first control program to a second control program (P2) on the basis of data received from a server (100) provided outside the vehicle via the communication unit. The control unit controls the electric component as a device that executes a second function different from the first function by means of a second control program.

Description

Technical Field

[0001] The present invention relates to an interior device for a vehicle and the vehicle, and in particular to an interior device for a vehicle including an electric component and the vehicle. Background Art

[0002] Patent Document 1 discloses a vehicle seat provided with an electric component such as a vibrator, and when the approach of another vehicle is detected, the vibrator or the like is used to notify the occupant of the information.

[0003] In the vehicle seat described in Patent Document 1, the electric component is used for information notification, but the use of the electric component is not limited thereto and can be used for other purposes. For example, the vibrator can also be used for entertainment purposes.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: International Publication No. 2019 / 044826 Summary of the invention

[0007] Problems to be solved by the invention

[0008] However, in the case of existing electrical components, it is difficult to change the method of using the electrical components, that is, it is difficult to add other functions to the electrical components or change them to other functions, unless the control device (electronic control unit (ECU)) in which the program is assembled is replaced together.

[0009] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a vehicle interior device and a vehicle including an electrical component whose function can be changed without replacing a control device.

[0010] Technical means of solving problems

[0011] The above-mentioned problem can be solved by an interior device for a vehicle of the present invention. An interior device for a vehicle is mounted on a vehicle, and the interior device for a vehicle comprises: an interior component, at least one electrical component arranged on the interior component, and a control device, wherein the control device has a control unit, a storage unit, and a communication unit for controlling the electrical component, the storage unit stores a first control program for controlling the electrical component as a device for performing a first function, the control unit controls the electrical component as a device for performing the first function through the first control program in an initial state, and when the first control program is updated to a second control program based on data received from a server arranged outside the vehicle via the communication unit, the control unit controls the electrical component as a device for performing a second function different from the first function through the second control program.

[0012] By updating the first control program stored in the storage unit of the control device to the second control program, the control unit of the control device controls the electrical component to be a device having the second function, so that an internal device for a vehicle including an electrical component whose function can be changed without replacing the control device (ECU) can be provided. Since there is no need to replace the control device, for example, it is not necessary to go to a sales store (dealer) to replace the control device, which is economical and affordable, and functions can be added and changed quickly. In addition, by updating the control program, new functions can be continuously added.

[0013] Furthermore, in the above configuration, preferably, the second function is a function that produces an effect different from that of the first function.

[0014] By adding a second function that produces an effect different from the first function to the electrical component, the existing electrical component can be used as a more convenient device.

[0015] Furthermore, in the above structure, preferably, the interior component is a vehicle seat, and the electrical component is provided on the vehicle seat.

[0016] By updating the functions of electrical components provided in a vehicle seat, more convenient services can be provided to passengers sitting in the vehicle seat.

[0017] In addition, in the structure, it is preferable that the electrical component is a vibrating body arranged on the vehicle seat, the first function is a function of notifying an occupant seated on the vehicle seat of information through vibration, and the second function is a function of vibrating in conjunction with a sound emitted in the vehicle.

[0018] Without replacing the control unit (ECU), a function of vibrating in conjunction with sound for the passengers can be added to the existing vibration body, thereby providing entertainment to the passengers.

[0019] In the above configuration, preferably, the vehicle seat includes a headrest speaker provided on a headrest, and the second function includes a function of vibrating in conjunction with a sound emitted from the headrest speaker.

[0020] By providing a function of vibrating in conjunction with the sound emitted from the headrest speaker, it is possible to provide the occupant with vibration that is more integrated with the sound.

[0021] In addition, in the structure, it is preferable that the electrical component is a seat belt reminder, the first function is a function of detecting the load of an occupant sitting on the vehicle seat, and the second function is a function of measuring the occupant's breathing rate based on the occupant's body movement, or a function of measuring the distribution of the occupant's body pressure.

[0022] The breathing rate and body pressure distribution of the occupant can be obtained without replacing the control unit (ECU).

[0023] In addition, in the structure, it is preferable that the vehicle seat has an air chamber device for kneading the occupant, and the second function includes the following functions: using the seat belt reminder to measure the breathing rate of the occupant according to the body movement of the occupant, and using the air chamber device to knead the occupant based on the measured breathing rate.

[0024] By measuring the breathing rate, for example, the physical condition of the occupant can be evaluated, and by kneading the occupant based on the physical condition of the occupant, the tense state of the occupant's body can be relieved more effectively.

[0025] Furthermore, in the above configuration, preferably, the second function includes a function of measuring the body pressure distribution of the occupant using the seat belt reminder, and transmitting the measured body pressure distribution to a portable terminal owned by the occupant via the communication unit.

[0026] By measuring the distribution of body pressure, the posture of the occupant can be determined. Therefore, by sending the distribution of body pressure to the portable terminal, the occupant can check the posture based on the information.

[0027] In addition, in the structure, it is preferable that the electrical component is a seat weight sensor, the first function is to detect the load of the occupant sitting on the vehicle seat, and the second function is to estimate the weight of the occupant sitting on the vehicle seat.

[0028] The weight of the occupant can be obtained without replacing the control unit (ECU).

[0029] Furthermore, in the above configuration, preferably, the second function includes a function of transmitting the weight of the occupant estimated by the seat weight sensor to a portable terminal owned by the occupant via the communication unit.

[0030] By transmitting the weight of the occupant to the portable terminal of the occupant, the occupant can manage the weight using the portable terminal.

[0031] In addition, the above-mentioned problems can be solved by a vehicle including a vehicle interior device having the above-mentioned structure.

[0032] A vehicle including a vehicle interior device capable of causing an electric component to perform another function without replacing a control unit (ECU) can be provided.

[0033] Effects of the Invention

[0034] According to the in-vehicle device of the present invention, by updating the first control program stored in the storage unit of the control device to the second control program, the control unit of the control device controls the electrical components to be a device having the second function, so that an in-vehicle device including electrical components whose functions can be changed without replacing the control device (ECU) can be provided. Since there is no need to replace the control device, for example, it is not necessary to go to a sales store (dealer) to replace the control device, which is economical and affordable, and functions can be added and changed quickly. In addition, by updating the control program, new functions can be continuously added.

[0035] Furthermore, according to the vehicle interior device of the present invention, by adding a second function having an effect different from the first function to the electric component, the existing electric component can be used as a more convenient device.

[0036] Furthermore, according to the vehicle interior device of the present invention, by updating the functions of the electrical components provided in the vehicle seat, it is possible to provide more convenient services to the occupants sitting in the vehicle seat.

[0037] Furthermore, according to the in-vehicle device of the present invention, a function of vibrating in conjunction with sound for passengers can be added to an existing vibrating body without replacing the control unit (ECU), thereby providing entertainment to the passengers.

[0038] Furthermore, according to the vehicle interior device of the present invention, by providing a function of vibrating in conjunction with the sound emitted from the headrest speaker, it is possible to provide vibrations that are more integrated with the sound to the occupant.

[0039] Furthermore, according to the in-vehicle device of the present invention, the breathing frequency or body pressure distribution of the occupant can be acquired without replacing the control device (ECU).

[0040] In addition, according to the in-vehicle device of the present invention, by measuring the breathing rate, for example, the physical condition of the occupant can be evaluated, and by kneading the occupant based on the occupant's physical condition, the occupant's physical tension can be more effectively relieved.

[0041] In addition, according to the vehicle interior device of the present invention, the posture of the occupant can be determined by measuring the distribution of body pressure. Therefore, by sending the distribution of body pressure to the portable terminal, the occupant can check the posture based on the information.

[0042] Furthermore, according to the in-vehicle device of the present invention, the weight of the occupant can be obtained without replacing the control unit (ECU).

[0043] Furthermore, according to the in-vehicle device of the present invention, the weight of the occupant is transmitted to the portable terminal of the occupant, so that the occupant can manage his / her weight using the portable terminal.

[0044] Furthermore, according to the vehicle of the present invention, it is possible to provide a vehicle including a vehicle interior device capable of causing an electric component to execute another function without replacing the control unit (ECU). BRIEF DESCRIPTION OF THE DRAWINGS

[0045] [ Figure 1 ] is a diagram schematically showing the structure of a vehicle including an interior device for a vehicle according to one embodiment of the present invention.

[0046] [ Figure 2 ] is a three-dimensional view of a vehicle seat and a door showing the interior device for a vehicle of the first embodiment.

[0047] [ Figure 3 ] is a block diagram showing the functions of an internal device for a vehicle in an initial state.

[0048] [ Figure 4 ] is a block diagram showing the functions of an internal device for a vehicle with an updated control program.

[0049] [ Figure 5 ] is a block diagram showing the structure of the vibration ECU circuit.

[0050] [ Figure 6 ] is a three-dimensional view of a vehicle seat showing the vehicle interior device of the second embodiment.

[0051] [ Figure 7 ] is a block diagram showing the functions of an internal device for a vehicle in an initial state.

[0052] [ Figure 8 ] is a block diagram showing the functions of an internal device for a vehicle with an updated control program.

[0053] [ Fig. 9 ] is a diagram showing a seat weight sensor provided in the interior device for a vehicle of the third embodiment.

[0054] [ Fig.10 ] is a block diagram showing the functions of an internal device for a vehicle in an initial state.

[0055] [ Fig.11 ] is a block diagram showing the functions of an internal device for a vehicle with an updated control program. DETAILED DESCRIPTION

[0056] Below, refer to Figures 1 to 11 The vehicle interior device M as an embodiment of the present invention is described. The embodiments described below are for easy understanding of the present invention and do not limit the present invention. That is, the present invention can be changed and improved without departing from its purpose, and the present invention naturally includes its equivalents.

[0057] In the following description, the material, shape, and size of the parts constituting the vehicle interior device M are merely specific examples and do not limit the present invention.

[0058] In addition, as an example of an interior member provided in the vehicle interior device M, a vehicle seat S can be cited, and a configuration example thereof will be described.

[0059] In the following description, the so-called "front-rear direction" is the front-rear direction of the vehicle seat S, and is a direction that coincides with the traveling direction when the vehicle V is traveling. In addition, the so-called "seat width direction" is the lateral width direction of the vehicle seat S, and is a direction that coincides with the left-right direction viewed from the occupant sitting on the vehicle seat S. In addition, the so-called "up-down direction" is the up-down direction of the vehicle seat S, and is a direction that coincides with the vertical direction when the vehicle V is traveling on a horizontal plane.

[0060] In addition, the shapes, positions, postures, and the like of the various parts of the vehicle seat S described below are described assuming that the vehicle seat S is in a seated state, except for cases where special instructions are given.

[0061] like Figure 1 As shown, the vehicle seat S of the vehicle interior device M according to the present embodiment is a seat mounted on a vehicle V and on which an occupant H riding in the vehicle V sits.

[0062] The vehicle V is a four-wheeled vehicle, which is set as an ordinary car, and can also be applied to any type of vehicle such as a van, a sports utility vehicle, etc. In addition, it is not limited to an engine car, and the vehicle V can also be an electric vehicle (EV car). The vehicle V can also be a vehicle that can automatically drive. In addition, it is not limited to a four-wheeled vehicle, for example, the vehicle V can also be a three-wheeled vehicle or a two-wheeled motorcycle.

[0063] like Figure 1 As shown, the vehicle V includes a vehicle seat S and a vehicle door D in the vehicle interior. In addition, a speaker 31, a monitor 33, etc. are mounted as electrical components. An ECU (Electronic Control Unit) 10 is provided in the instrument panel, and the electrical components such as the speaker 31, the monitor 33, etc., except for the engine, are controlled by the ECU 10. In addition, the ECU 10 is equivalent to the control device of the present invention.

[0064] The ECU 10 is equipped with a control circuit for controlling various electrical components. The ECU 10 has a central processing unit (CPU) as a data calculation / control processing device, a read-only memory (ROM), a random access memory (RAM), a solid state drive (SSD), and a hard disk drive (HDD) as a storage device. In addition, the ECU 10 includes a communication interface for receiving information or signals from electrical components or sending signals for operation. Each component is connected to each other via a bus so that it can communicate with each other.

[0065] Furthermore, the ECU 10 may also be a control device for an advanced autonomous driving system (Advanced driver-assitance systems (ADAS)).

[0066] The ECU 10 includes a control unit 11 for controlling electrical components (such as the vibrating body 21 or the seat belt reminder 41), a storage unit 12, and a communication unit 13 as functional structures. The storage unit 12 stores setting files or programs for controlling various electrical components. The control unit 11 reads the setting files or programs stored in the storage unit 12 to operate the electrical components.

[0067] The control unit 11 is implemented by a CPU, and the storage unit 12 is implemented by a storage device. The communication unit 13 is implemented by a communication interface, and in addition to wired communication with the electrical components in the vehicle V, it can also wirelessly communicate (Over The Air (OTA)) with an OTA server 100 (server) installed outside the vehicle V or a portable terminal 101 owned by the passenger H. Through OTA, the ECU 10 can update the setting files or programs stored in the storage unit 12.

[0068] The storage unit 12 of the ECU 10 stores a first control program P1 for controlling the electrical components mounted on the vehicle V to be devices that perform a first function as an initial function in an initial state (e.g., at the time of purchasing the vehicle). In the initial state, the control unit 11 controls the electrical components to be devices that perform the first function through the first control program P1.

[0069] After purchasing the vehicle V, if the owner instructs to add functions of the electrical components, the ECU 10 receives data such as the second control program P2 received from the OTA server 100. The ECU 10 then updates the first control program P1 stored in the storage unit 12 to the second control program P2.

[0070] When the first control program P1 is updated to the second control program P2, the control unit 11 can control the electrical components to be devices that perform a second function different from the first function through the second control program P2.

[0071] Conventionally, in order to add functions to the electric components (vibrating body 21 or seat belt reminder 41 ) or use them for other purposes, it is necessary to replace the ECU in which the program for controlling the electric components is installed.

[0072] The ECU 10 provided in the vehicle interior device of this embodiment includes a communication unit capable of communicating with an external server. Setting files and programs stored in the ECU 10 can be updated via OTA, so there is no need to replace the ECU 10 itself in order to give other functions to the electrical components.

[0073] That is, the passenger H does not need to send the vehicle to a sales store (dealer) or a repair shop to replace the ECU 10. That is, the provider of the vehicle V can provide product services after the sale without going through a sales store. In addition, the passenger H can also add new functions according to the performance of the ECU 10.

[0074] <First embodiment>

[0075] As a first embodiment, the following is used Figures 1 to 5, a case where the electric component is a vibrating body 21 provided in the vehicle seat S will be described.

[0076] like Figure 1 and Figure 2 As shown, the vehicle seat S includes a seat back 1 that supports the back of a seated occupant H, a seat cushion 2 that supports the buttocks of the occupant H, and a headrest 3 that supports the head of the occupant H.

[0077] The vibrating body 21 is provided on the seat back 1 and the seat cushion 2, and can be vibrated by the vibration ECU circuit 20. The vibration ECU circuit 20 is connected to the ECU 10 via the in-vehicle network, and has the following function (first function): in an initial state, for example, at the time of purchasing the vehicle V, when a warning signal is received from the ECU 10, the vibrating body 21 is vibrated to notify a warning only to the seated occupant (for example, the driver).

[0078] In other words, Figure 3 As shown, the ECU 10 controls the vibrator 21 to be a device that performs a first function of notifying an occupant seated on the vehicle seat S of information by vibration, using a first control program P1 initially stored in the storage unit 12 .

[0079] That is, when the vehicle is purchased, the vehicle seat S is equipped with a vibration human machine interface (HMI) as a safety function.

[0080] In addition, a headrest speaker 32 is provided on the headrest of the vehicle seat S, and can receive audio data from the ECU 10 and generate a warning sound or music.

[0081] Furthermore, after purchasing the vehicle V, if the occupant (owner of the vehicle) wishes to update the function of the vibration body 21, such as Figure 4 As shown, the ECU 10 downloads the second control program from the OTA server 100 by wireless communication via the communication unit 13. Then, the first control program P1 stored in the storage unit 12 is updated to the second control program P2.

[0082] In the second control program P2, as the second function, a function of vibrating in conjunction with sound (especially bass) emitted in the vehicle is added. It is also possible to make the information notification function (first function) installed from the beginning and the vibration function (second function) linked to sound coexist.

[0083] If we describe it more specifically, Figure 4 As shown, the ECU 10 sends sound data (such as music or virtual engine sound) not only to the headrest speaker 32 but also to the vibration ECU circuit 20 through the second control program P2.

[0084] When the received sound data is music, the vibration ECU circuit 20 uses the filter circuit 27 (see Figure 5 ) extracts the bass part (e.g., the bass or drum sound region of 20 Hz to 600 Hz) and vibrates the vibrator 21 according to the frequency. The passenger H can feel the bass part of the music through the vibration and feel the presence of a concert venue.

[0085] In addition, the sound data sent by the ECU 10 may also be a virtual engine sound imitating the engine sound of a sports car. By updating to the second control program P2, the frequency information imitating the engine sound of a sports car is stored in the storage unit 12 of the ECU 10. Regarding the engine sound, data of a plurality of sports cars may be stored.

[0086] The ECU 10 obtains actual engine output information from a body ECU (not shown) that controls the engine, and outputs a virtual engine sound from the headrest speaker 32 according to the actual engine output. At this time, the vibration ECU circuit 20 receives the virtual engine sound and vibrates the vibration body 21 according to the strength or length of the virtual engine sound.

[0087] A virtual engine sound of a sports car is generated based on the actual engine output, and the vibration body 21 is vibrated in a manner linked to the underlying engine sound, thereby giving the occupants a feeling of riding in a sports car.

[0088] In this way, by updating the software (control program) stored in the ECU 10 by OTA, the vibrating body 21 installed as a safety function in the initial state can also be used for entertainment purposes.

[0089] In addition, in order to vibrate the vibrating body 21 according to the sound data, it is desirable to include in advance a connection circuit connecting the headrest speaker 32 and the vibrating body 21, and a filter circuit for extracting a specific frequency. That is, when the vehicle body is purchased, it is desirable that the program for operating these circuits is not included in the first control program, but is included in the second control program, so that the connection circuit or the filter circuit can be used. Thus, the vibration ECU circuit 20 is not replaced but updated to the second control program, so that a function can be added to vibrate in conjunction with music or virtual engine sound.

[0090] Figure 5, a block diagram of the vibration ECU circuit 20 is shown in FIG. The vibration ECU circuit 20 has a CAN (Controller Area Network) transceiver 22, an EEPROM (Electrically Erasable Programmable Read-Only Memory) 23, an MCU (Microcontroller Unit) 24, a DAC (Digital Analog Converter) 25, a relay 26, and an amplifier circuit 28 (AMP (Amplifier)). The vibration ECU circuit 20 is provided with a filter circuit 27. Each component is configured to obtain power from a power supply circuit 29 and be driven.

[0091] The EEPROM 23 stores programs and data for controlling the vibration ECU circuit 20, etc. The MCU 24 reads the program from the EEPROM 23, and based on the warning information received by the CAN transceiver, sends a signal to the vibration body 21 via the DAC 25 and the AMP 28. The vibration body 21 that receives the signal can vibrate to transmit the warning to the occupant.

[0092] In the initial state, the sound data is not input to the vibration ECU circuit 20, and the filter circuit 27 does not function. When the second control program P2 is updated, the sound data of music or virtual engine sound is input to the vibration ECU circuit 20, and the filter circuit 27 functions. The filter circuit 27 extracts a specific frequency from the sound data. After extraction, the relay is switched to make the vibration body 21 vibrate in conjunction with the sound of the specific frequency.

[0093] The device that outputs sounds such as music and virtual engine sounds is not limited to the headrest speakers 32, and may be speakers 31 mounted on interior parts such as the vehicle door D or the instrument panel.

[0094] <Second embodiment>

[0095] As a second embodiment, using Figures 6 to 8 , a case where the electrical component is a seat belt reminder 41 provided on the vehicle seat SA will be described.

[0096] like Figure 6 As shown, the vehicle seat SA includes a seat back 1 , a seat cushion 2 , and a headrest 3 , similarly to the vehicle seat S of the first embodiment.

[0097] The seat belt reminder 41 is a pressure sensor such as a diaphragm switch that detects a load applied when the occupant H takes a seat, and is connected to the ECU 10A mounted on the vehicle VA.

[0098] The seat belt reminder 41 has a function of only detecting the load of the occupant as a first function in the initial state. When the load is detected, the ECU 10A is configured to warn the seated occupant when the seat belt is not worn. The warning is performed by emitting a warning sound through a speaker 31 mounted on the vehicle VA or displaying a warning screen on a monitor 33.

[0099] If we describe it more specifically, Figure 7 As shown, the vehicle interior device MA includes: a seat belt reminder 41 as an electrical component provided on the vehicle seat SA, an ECU 10A, a speaker 31, and a monitor 33. The ECU 10A controls the seat belt reminder 41 to perform a function (first function) of detecting the load of an occupant seated on the vehicle seat SA through a first control program P1A initially stored in the storage unit 12.

[0100] That is, at the time of purchase, the vehicle seat SA is equipped with the seat belt reminder 41 that can be used as a safety function.

[0101] The seat back 1 of the vehicle seat SA is provided with an air cell device 46 for kneading the occupant H. The air cell device 46 is controlled by an air cell ECU circuit 45 mounted on the vehicle seat SA, and can knead (massage) the occupant H as requested.

[0102] Furthermore, after purchasing the vehicle VA, in the case where the occupant (owner of the vehicle VA) wishes to update the function of the seat belt reminder 41, such as Figure 8 As shown, the ECU 10A downloads the second control program P2A from the OTA server 100 by wireless communication via the communication section 13. Then, the first control program P1A stored in the storage section 12 is updated to the second control program P2A.

[0103] In the second control program P2A, as the second function, a function of measuring the respiratory rate of the occupant H based on the body movement of the occupant H or a function of measuring the body pressure distribution of the occupant H is added. That is, the function of detecting the load installed from the beginning after the update also coexists with the function of measuring the respiratory rate and the function of measuring the body pressure distribution.

[0104] <Examination of body movement>

[0105] Since the seat belt reminder 41 of the vehicle interior device MA includes a pressure sensor such as a diaphragm switch, the body movement of the occupant H can be detected even after the load of the occupant H is detected. When updated to the second control program P2A, the control unit 11 can detect the breathing rate of the occupant H based on the body movement of the occupant H, and compare it with a predetermined threshold value to determine the relaxation degree of the occupant H.

[0106] Since the normal breathing rate is about 12 to 20 times per minute, for example, when the breathing rate is greater than 20 times, the ECU 10A can determine that the occupant H is irritable.

[0107] That is, by measuring the breathing rate, the relaxation level indicating the physical condition of the occupant can be determined. When the relaxation level deteriorates, the air cell device 46 is operated to knead and relax the body of the occupant, thereby relieving the tense state of the body.

[0108] The relaxation degree can be determined not only from the breathing rate but also from the heartbeat rate. The heartbeat can be detected from the body movement caused by the leg artery. In the case of the heartbeat, the relaxation degree is also determined by comparing the heartbeat rate per minute with a threshold value.

[0109] The air cell device 46 provided in the seat back 1 or the seat cushion 2 is expanded or deflated to perform kneading (massage) on the occupant H. The kneading may be automatically performed when the relaxation of the occupant H deteriorates. In addition, the kneading may be performed after the occupant is asked for permission before the kneading is performed and the permission is given.

[0110] In this way, the occupant H who is the owner of the vehicle VA can add a health function by updating the first control program P1A to the second control program P2A after purchase.

[0111] <Body pressure test>

[0112] The vehicle interior device MA can also use the seat belt reminder 41 to check the approximate distribution of body pressure. Specifically, it can be determined whether there is a deviation in body pressure in the front-to-back direction or the left-to-right direction by four membrane switches arranged on the front, back, left, and right sides of the seat cushion 2 constituting the seat belt reminder 41. For example, the load value of a sitting state with good balance is stored as a reference value, and it can be determined whether there is a deviation in body pressure by calculating how much the load value measured by the membrane switch is higher or lower than the reference value.

[0113] At this time, the in-vehicle device MA can transmit the distribution of body pressure to the portable terminal 101 (smartphone, tablet, etc.) owned by the occupant H via the communication unit 13 by wireless communication. In addition, the in-vehicle device MA can also transmit the distribution data of body pressure to the navigation system installed in the vehicle V. The distribution of body pressure detected by the ECU 10A is displayed on the monitor 33 in the vehicle.

[0114] The user can check his / her posture by displaying the distribution of body pressure on the screen of the portable terminal 101 or the monitor 33 of the navigation system via the application. At this time, the portable terminal 101 can also display suggestions for improving posture based on the distribution of body pressure on the screen. By displaying his / her posture in a graphical form, the user can easily check his / her posture.

[0115] <Third embodiment>

[0116] As a third embodiment, using Figures 9 to 11 , a case where the electrical component of the vehicle interior device MB is a seat weight sensor 55 provided in the vehicle seat SB is described.

[0117] The vehicle seat SB provided with the seat weight sensor 55 includes a seat back 1 , a seat cushion 2 , and a headrest 3 , similarly to the vehicle seat S of the first embodiment and the vehicle seat SA of the second embodiment.

[0118] like Fig. 9 As shown, a vehicle seat SB of the vehicle interior device MB is provided with a seat frame 50. The seat frame 50 includes a backrest frame 51 forming a frame of a seat back 1, and a cushion frame 52 forming a frame of a seat cushion 2. The lower end of the backrest frame 51 and the rear end of the cushion frame 52 are connected via a reclining device 53.

[0119] A slide device 54 is provided below the cushion frame 52, and the position of the vehicle seat SB can be changed by sliding an upper rail 54b on a lower rail 54a.

[0120] like Fig. 9 As shown in FIG. 1 , the seat weight sensor 55 is provided between the seat cushion frame 52 and the upper rail 54b, and is configured to detect the load of the occupant by applying a load from the seat cushion 2 when the occupant sits. The vehicle seat SB is configured to warn the occupant that the seat belt is not worn when the load is detected by the seat weight sensor 55. The warning is performed by emitting a warning sound through the speaker 31 mounted on the vehicle V or displaying a warning screen on the monitor 33, similarly to the seat belt reminder 41 of the second embodiment.

[0121] If we describe it more specifically, Fig.10As shown, the vehicle interior device MB includes: a seat weight sensor 55 as an electrical component provided on the vehicle seat SB, an ECU 10B, a speaker 31, and a monitor 33. The ECU 10B controls the seat weight sensor 55 to perform a function (first function) of detecting the load of an occupant seated on the vehicle seat SB through a first control program P1B initially stored in the storage unit 12.

[0122] That is, at the time of purchase, the vehicle seat SB is equipped with the seat weight sensor 55 that can be used as a safety function.

[0123] Furthermore, after purchasing the vehicle VB, in the case where the occupant H as the owner wishes to update the function of the seat weight sensor 55, such as Fig.11 As shown, the ECU 10B downloads the second control program P2A from the OTA server 100 by wireless communication via the communication unit 13. Then, the ECU 10B updates the first control program P1A stored in the storage unit 12 to the second control program P2A.

[0124] In the second control program P2A, the control unit 11 is programmed to estimate the body weight based on the load data received from the seat weight sensor 55 .

[0125] That is, the control unit 11 of the ECU 10B performs control such that the seat weight sensor 55 functions as a device for estimating (second function) the weight of the occupant sitting on the vehicle seat through the second control program P2A.

[0126] The second function may include a function in which the control unit 11 of the ECU 10B transmits data of the weight of the occupant H estimated from the load detected by the seat weight sensor 55 to the portable terminal 101 of the occupant H (user), such as a smartphone or tablet, via the communication unit 13 .

[0127] The ECU 10B transmits the estimated body weight to the portable terminal 101 , thereby recording the daily weight change in the portable terminal 101 .

[0128] The data on the weight of the occupant H can be transmitted not only to the mobile terminal 101 but also to a navigation system mounted on a vehicle.

[0129] Furthermore, the in-vehicle device MB may display advice for weight loss on the screen of the portable terminal 101 or the monitor 33 of the vehicle VB through an application based on changes in weight recorded in the portable terminal 101 or the navigation system.

[0130] In this way, the passenger H who is the owner of the vehicle VB can add a health function by updating the first control program P1B to the second control program P2B after purchase.

[0131] Furthermore, when the seat weight sensor 55 is used to estimate the body weight, the seated occupant usually places his / her feet on the floor, so it is difficult to directly use the load value measured by the seat weight sensor 55 as the body weight, and correction needs to be made through a program. In addition, since the body weight is not accurate, for example, only the difference from the last measurement may be notified to the occupant. In such a case, by initially inputting the accurate body weight of the occupant, a body weight closer to the actual body weight can be estimated.

[0132] <Purchase of the Second Control Program>

[0133] The update from the first control program P1 to the first control program P1B to the second control program P2 to the second control program P2B shown in the first to third embodiments can also be implemented by the passenger H (user) who is the owner of the vehicles V to VB purchasing the second control program P2 to the second control program P2B.

[0134] Alternatively, the passenger H may use the second control programs P2 to P2B only during the period of subscription service. In this case, when the subscription service period ends, the second control programs P2 to P2B are deleted or the second function is turned off, and only the first function operates.

[0135] The second control programs P2 to P2B for realizing the second function can also be purchased from the user's portable terminal 101 such as a smartphone or tablet. Alternatively, the passenger H can purchase the second control programs P2 to P2B via an in-vehicle interface (eg, the monitor 33 of the navigation system).

[0136] In the above, the interior device for a vehicle including an electrical component and a vehicle as an embodiment of the present invention are described using the figures. In addition, a vehicle seat is cited as an example of an interior component, the interior component may be a vehicle door or dashboard, and the electrical component may also be a device (monitor or sensor, etc.) provided on the vehicle door or dashboard.

[0137] When the electrical component is a door speaker or a headrest speaker for a vehicle, in the initial state it only has the function of playing music (entertainment function) as the first function, but it can also be updated to a second control program to add a function of notifying the approach of a vehicle by sound from the left and right (second function, safety function).

[0138] In addition, when the electric component is an air chamber device, it only has a massage function (first function, comfort function) in the initial state, but it can also be updated to a second control program to add a posture correction function (second function, health function). For example, if the passenger is hunchbacked, the air chamber device corresponding to the part on the pelvis can be inflated to correct the posture.

[0139] In addition, when the electric component is an air ventilation system (AVS) that delivers or draws air from the surface of a vehicle seat, it only has a function of suppressing stuffiness (first function, comfort function) in the initial state, but it can also be updated to a second control program to add a function of eliminating drowsiness by flowing cool air (second function, safety function). In the above case, for example, the drowsiness of the occupant is detected by a seat belt reminder that is a biosensor, so that the drowsiness elimination function (second function) is activated.

[0140] In addition, the present invention is not limited to ground-moving vehicles with wheels such as automobiles and trains, or vehicle interior components mounted on ground-moving vehicles, but can also be applied to vehicles such as airplanes and ships that move other than the ground, and vehicle interior components mounted on such vehicles.

[0141] Explanation of symbols

[0142] V, VA, VB: Transportation

[0143] H: Crew

[0144] M: Interior equipment for vehicles

[0145] D: Doors for transportation

[0146] S, SA, SB: Seats for vehicles (interior components)

[0147] 1: Seat back

[0148] 2: Seat cushion

[0149] 3: Headrest

[0150] 10, 10A, 10B: ECU (control unit)

[0151] 11: Control Department

[0152] 12: Storage

[0153] 13: Ministry of Communications

[0154] P1, P1A, P1B: First control program

[0155] P2, P2A, P2B: Second control program

[0156] 20: Vibration ECU circuit

[0157] 21: Vibrator (electrical component)

[0158] 22: CAN transceiver

[0159] 23: EEPROM

[0160] 24: MCU

[0161] 25: DAC

[0162] 26: Relay

[0163] 27: Filter circuit

[0164] 28: Amplifier circuit

[0165] 29: Power circuit

[0166] 31: Speaker

[0167] 32: Headrest speakers

[0168] 33: Monitor

[0169] 41: Seat belt reminder (electrical component)

[0170] 45: ECU circuit for air chamber

[0171] 46: Air chamber device

[0172] 50: Seat frame

[0173] 51: Backrest frame

[0174] 52: Seat frame

[0175] 53: Tilt device

[0176] 54: Sliding device

[0177] 54a: Lower rail

[0178] 54b: Upper rail

[0179] 55: Seat weight sensor (electrical component)

[0180] 100: OTA server

[0181] 101: Portable Terminal

Claims

1. A vehicle interior device, mounted on a vehicle, wherein the vehicle interior device is characterized in that: include: an interior component, at least one electrical component provided in the interior component, and a control device, The control device includes a control unit for controlling the electrical components, a storage unit, and a communication unit. The storage unit stores a first control program for controlling the electrical component to function as a device that performs a first function. The control unit controls the electrical component to be a device that performs the first function according to the first control program in an initial state. When the first control program is updated to the second control program based on data received from a server provided outside the vehicle via the communication unit, The control unit controls the electrical component to be a device that performs a second function different from the first function through the second control program.

2. The vehicle interior device according to claim 1, characterized in that: The second function is a function that produces an effect different from that of the first function.

3. The vehicle interior device according to claim 1, characterized in that: The interior component is a vehicle seat. The electrical component is provided on the vehicle seat.

4. The vehicle interior device according to claim 3, characterized in that: The electrical component is a vibrating body provided on the vehicle seat. The first function is a function of notifying an occupant seated on the vehicle seat of information by vibration. The second function is a function of vibrating in conjunction with a sound generated in the vehicle.

5. The vehicle interior device according to claim 4, characterized in that: The vehicle seat has a headrest speaker provided on the headrest. The second function includes a function of vibrating in conjunction with the sound emitted from the headrest speaker.

6. The vehicle interior device according to claim 3, characterized in that: The electrical component is a seat belt reminder. The first function is a function of detecting a load of an occupant seated on the vehicle seat. The second function is a function of measuring the breathing rate of the occupant based on the body movement of the occupant, or a function of measuring the distribution of the body pressure of the occupant.

7. The vehicle interior device according to claim 6, characterized in that: The vehicle seat has an air chamber device for kneading the occupant. The second function includes the following functions: using the seat belt reminder to measure the breathing rate of the occupant according to the body movement of the occupant, and using the air chamber device to knead the occupant based on the measured breathing rate.

8. The vehicle interior device according to claim 6, characterized in that: The second function includes a function of measuring the body pressure distribution of the occupant using the seat belt reminder, and transmitting the measured body pressure distribution to a portable terminal owned by the occupant via the communication unit.

9. The vehicle interior device according to claim 3, characterized in that: The electrical component is a seat weight sensor, The first function is a function of detecting a load of an occupant seated on the vehicle seat. The second function is a function of estimating the weight of the occupant sitting on the vehicle seat.

10. The vehicle interior device according to claim 9, characterized in that: The second function includes a function of transmitting the weight of the occupant estimated by the seat weight sensor to a portable terminal owned by the occupant via the communication unit.

11. A vehicle, comprising the vehicle interior device according to any one of claims 1 to 10.

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