JP2015193301A - Damage status transmission device by use of waist seat belt - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transmission device which can transmit impact degree applied to a seating person by a waist seat belt and damage degree estimated based on the impact degree.SOLUTION: A transmission device 10 transmits both of impact degree applied to a seating person M by a waist seat belt 21B and damage degree estimated based on the impact degree, or one of them. A sensor 27 detects load P applied to the waist seat belt 21B, load distribution calculation means 31 calculates load distribution L on the basis of the detected load P, impact degree calculation means 33 calculates the impact degree applied to the seating person M on the basis of the load distribution L and a determination result that waist seat belt position determination means 32 makes, which determines whether the waist seat belt 21B is positioned on a hipbone position of the seating person M, and damage degree estimation means 37 estimates the damage degree on the basis of the impact degree. The impact degree and the damage degree are transmitted to an information transfer apparatus 40.

Description

  The present invention relates to a device for transmitting an injury situation by a lumbar seat belt, and more particularly to a occupant by a lumbar seat belt of a seat belt device having a lumbar seat belt that is mounted on a lumbar region of a seated person seated on the seat. The present invention relates to a device for transmitting an injury situation by a lumbar seat belt, which transmits both the degree of impact and the degree of injury estimated based on the degree of impact, or transmits either of them as an injury situation applied from the lumbar seat belt.

  A seat belt device, for example, a three-point seat belt device for a vehicle, has a shoulder seat belt that is slanted over the upper body of a seated person, restrains the shoulder and chest of the seated person to the seat, and the abdomen of the seated person The lumbar seat belt that is stretched over the seat restrains the seated person's waist and abdomen to the seat.

  However, for example, when a vehicle collision occurs when the seat belt is not properly worn, such as when the waist belt is not properly bridged over the occupant's hip bone, the seat belt is caused by an improper wearing state of the seat belt. The seated person may be damaged unexpectedly.

  Therefore, from the viewpoint of detecting the seat belt wearing state, a tension sensor is provided on the seat belt to detect the tension applied to the seat belt, and the seat belt is applied to the seated person based on the detected tension. A technique for assuming a load has been proposed (see, for example, Patent Document 1).

JP 2011-68206 A

  By the way, based on the load applied to the seat occupant by the seat belt detected by the seat belt device, if the mechanical quantity acting on the seat occupant by the load, that is, the degree of impact applied to the seat occupant can be appropriately calculated. For example, when a seated person is injured by encountering a vehicle collision or the like, it is possible to appropriately take measures regarding the treatment of the seated person based on the calculated degree of impact.

  In particular, when the lumbar seat belt is displaced from the occupant's lumbar region, the lumbar seat belt is stretched over the occupant's abdomen, which is a relatively soft body part, and thus the degree of impact applied to the occupant's abdomen. However, it is required to be calculated more appropriately.

  Furthermore, if the degree of injury is estimated based on the calculated degree of impact, and the medical worker can detect the degree of injury at an early stage, for example, the medical worker can quickly grasp the injured state of the seated person. From what can be done, it can be expected that prompt medical practice will be given.

  The present invention has been made in view of the above problems, and its purpose is to transmit the degree of injury imparted to the seated person by the waist seat belt and the degree of injury estimated based on the degree of impact. An object of the present invention is to provide a transmission device for an injury situation caused by a seat belt.

  In order to solve the above-mentioned problems, the device for transmitting an injury situation by the waist seat belt according to the invention as set forth in claim 1 comprises a seat belt having a waist seat belt that is mounted on the waist of the seated person seated on the seat. The degree of injury given to the seated person by the waist seat belt of the apparatus and the degree of injury estimated based on the degree of impact are both transmitted, or the injury situation given either of them from the waist seat belt A device for transmitting an injury situation caused by a waist seat belt that transmits as the seat belt device, wherein the seat belt device is provided on the waist seat belt, and the load applied from the seated person in the wearing state is applied to the left and right sides of the waist seat belt. A sensor for detecting a predetermined area in the spanning direction, and the waist seat base of the load detected by the sensor. Load distribution calculating means for calculating the load distribution in the crossing direction of the left and right of the toe, and whether or not the waist seat belt is at the position of the hip bone of the seated person based on the load distribution obtained by the load distribution calculating means The seat belt position determination means for determining the load, the load distribution information obtained by the load distribution calculation means and the degree of impact calculated from the determination result by the waist seat belt position determination means A degree-of-injury estimating means for estimating the degree of injury to be applied, and transmitting both the degree of impact and the degree of injury to the information transmission device, or one of them from the waist seat belt It is transmitted as an injury situation to be given.

  According to this configuration, the load applied to the lumbar seat belt is detected, and the load distribution is calculated based on the detected load. Based on the degree of impact calculated based on the load distribution, the injury level estimation means is used for the seated person. Estimate the degree of injury.

  Since the impact level and injury level calculated or estimated in this way can be transmitted to the information transmission device as an injury situation given from the lumbar seat belt, the transmitted impact level and injury level can be transmitted. Based on the degree or any one of them, it is possible to quickly and appropriately take measures regarding the treatment of the seated person.

  According to a second aspect of the present invention, in the injury state transmitting device by the lumbar seat belt according to the first aspect, the control device includes a left and right side of the lumbar seat belt out of the load distribution obtained by the load distribution calculating means. Lumbar seatbelt slippage judging means for judging that the lumbar seatbelt slipped from the hip position of the seated person when a change more than a preset value has occurred within a prescribed time in a predetermined area in the spanning direction And the degree of injury is estimated by adding the result of determination by the waist seat belt deviation determination means.

  According to this configuration, when the degree of injury is estimated, the waist seatbelt shift determination unit determines that the waist seatbelt has shifted from the hip position when the load applied to the waist seatbelt changes within a predetermined time. Since the estimation result is added and estimated, the situation when the load changes can be accurately reflected in the estimation of the injury degree. Therefore, since the accuracy of the estimated injury degree is improved, an appropriate injury degree can be transmitted.

  According to a third aspect of the present invention, in the device for transmitting an injury situation by the lumbar seat belt according to the first or second aspect, the control device is configured so that the body shape of the seated person is determined by the load distribution obtained by the load distribution calculating means. It is characterized by comprising a seated body type estimating means for estimating the degree of injury by adding the estimated result of the seated person estimated by the seated body type estimating means.

  According to this configuration, when estimating the degree of injury, since the estimation result of the seated body type estimating unit that estimates the body type of the seated person is estimated based on the load distribution obtained by the load distribution calculating unit, The degree of injury according to the body shape of the seated person can be accurately estimated. Therefore, since the accuracy of the estimated injury degree is improved, an appropriate injury degree can be transmitted.

  According to a fourth aspect of the present invention, in the device for transmitting an injury situation due to the lumbar seat belt according to any one of the first to third aspects, the seat belt device is configured to dispose an upper body of the seated person seated on the seat. A shoulder seat belt to be constrained and a shoulder seat belt sensor for detecting a load input to the shoulder seat belt, and adding the load detected by the shoulder seat belt sensor to estimate the degree of injury It is characterized by doing.

  According to this configuration, when the degree of injury is estimated, since the detection result by the shoulder seat belt sensor that detects the load input to the shoulder seat belt is added and estimated, the load on the shoulder seat belt is estimated. Can be accurately reflected in the estimation of the degree of injury. Therefore, since the accuracy of the estimated injury degree is improved, an appropriate injury degree can be transmitted.

  According to a fifth aspect of the present invention, in the device for transmitting an injury situation by the lumbar seat belt according to any one of the first to fourth aspects, the information transmission device is an in-vehicle display device or a multifunctional portable information terminal. It is characterized by being.

  The invention according to claim 6 is the in-vehicle communication system in which the information transmission device is mounted on a vehicle and communicates with the outside in the device for transmitting an injury situation by the lumbar seat belt according to any one of claims 1 to 4. It is a system.

  The invention described in claim 7 is the device for transmitting an injury situation by the waist seat belt according to any one of claims 1 to 4, wherein the information transmission device is a storage medium.

  According to these configurations of claims 5 to 7, the information transmission device can be configured by an in-vehicle display device, a multifunctional portable information terminal, an in-vehicle communication system, and a storage medium, and the intended use of the impact level and the injury level It is possible to select an optimal information transmission device according to the request and transmit the impact degree and the degree of injury estimated based on the impact degree to the information transmission device.

  According to an eighth aspect of the present invention, in the device for transmitting an injury situation by the lumbar seat belt according to any one of the first to seventh aspects, the degree of impact and the degree of injury transmitted according to the degree of injury. The display mode is changed.

  According to this configuration, the display of the degree of impact and the degree of injury displayed on the information transmission device can be changed according to the degree of injury, so that alerting according to the degree of injury can be promoted.

  According to the present invention, the degree-of-injury estimation means estimates the degree of injury based on the calculated degree of impact, and transmits both the calculated degree of impact and the estimated degree of injury to the information transmission device. be able to.

  Therefore, since the information transmission device can detect the degree of impact and / or injury transmitted to the information transmission device at an early stage, it is possible to quickly and appropriately take measures regarding the treatment of the seated person. Thereby, quick relief of the injured seated person is achieved.

It is a conceptual diagram explaining the outline of the calculation apparatus of the impact degree which concerns on 1st Embodiment of this invention. Similarly, it is a front view explaining the outline of the seat belt device concerning this embodiment. Similarly, it is operation | movement explanatory drawing of the load distribution calculation means which concerns on this Embodiment. Similarly, it is operation | movement explanatory drawing of the load distribution calculation means which concerns on this Embodiment. Similarly, it is operation | movement explanatory drawing of the load distribution calculation means which concerns on this Embodiment. Similarly, it is operation | movement explanatory drawing of the waist | hip | lumbar part seatbelt position determination means which concerns on this Embodiment. Similarly, it is operation | movement explanatory drawing of the impact degree calculation means which concerns on this Embodiment. Similarly, it is operation | movement explanatory drawing of the waist | hip | lumbar part seatbelt deviation determination means which concerns on this Embodiment. Similarly, it is operation | movement explanatory drawing of the waist | hip | lumbar part seatbelt deviation determination means which concerns on this Embodiment. Similarly, it is operation | movement explanatory drawing of the seated person body type estimation means which concerns on this Embodiment. Similarly, it is operation | movement explanatory drawing of the seated person body type estimation means which concerns on this Embodiment. Similarly, it is operation | movement explanatory drawing of the shoulder part load distribution calculation means which concerns on this Embodiment. Similarly, it is a figure explaining the outline of the injury degree estimation apparatus which concerns on this Embodiment. Similarly, it is the flowchart which showed the calculation procedure of the impact degree at the time of the vehicle collision by the control apparatus which concerns on this Embodiment, and the estimation procedure of the injury degree based on the calculated impact degree. It is operation | movement explanatory drawing of the load distribution calculation means which concerns on 2nd Embodiment of this invention. Similarly, it is operation | movement explanatory drawing of the impact degree calculation means which concerns on this Embodiment.

(First embodiment)
Next, an embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a conceptual diagram illustrating an outline of a transmission device according to an embodiment of the present invention, and FIG. 2 is a front view illustrating an overview of a seat belt device according to the present embodiment. As shown in FIG. 1, the transmission device 10 includes a seat belt device 20 and a control device 30 that cooperates with the seat belt device 20 as main components.

  As shown in FIG. 2, the seat belt device 20 is a device that restrains a seat occupant M seated on the seat 1 disposed in the vehicle to the seat 1 by the seat belt 21.

  One end 21 a of the seat belt 21 is attached to a retractor 22 that is provided on the B-pillar 2 of the vehicle and constantly urges the seat belt 21 in the winding direction, and the other end 21 b is connected to the B-pillar 2 below the retractor 22. It is attached.

  The seat belt 21 is inserted through the through ring 23 at the top of the B pillar 2 and, after being inserted through the through ring 23, the tongue plate 24 provided with the engagement fitting 24a is inserted therethrough.

  The tongue plate 24 is formed to be engageable with a buckle 26 attached to a seat belt anchor 25 provided on the side portion 1a of the seat 1 in the engagement fitting 24a.

  In a state where the seated person M is seated on the seat 1, the seat belt 21 is stretched over the body of the seated person M, and the tongue plate 24 is engaged with the buckle 26, so that the seat belt 21 is worn on the seated person M. .

  In this state, a shoulder seat belt 21 </ b> A is formed on the seat belt 21 between the through ring 23 and the tongue plate 24, and the shoulder seat belt 21 </ b> A restrains the shoulder and chest of the seated person M to the seat 1. To do.

  On the other hand, a waist seat belt 21B is formed on the seat belt 21 between the tongue plate 24 and the other end 21b of the seat belt 21 in a state where the seat belt 21 is worn by the seated person M, and this waist seat belt 21B. Restrains the waist and abdomen of the seated person M to the seat 1.

  A sensor 27A is provided on the shoulder seat belt 21A. In the present embodiment, the sensor 27 detects a load applied to the shoulder seat belt 21A from the seated person M side in a state where the shoulder seat belt 21A restrains the shoulder and chest of the seated person M. At the same time, the shoulder seat belt 21 </ b> A is configured as a load detection sensor that detects an acting force generated by pressing the seated person M side as a load.

  In the present embodiment, the sensor 27A is sandwiched between two webbings constituting the seat belt 21, and is built in the spanning direction of the shoulder seat belt 21A indicated by an arrow W1.

  Accordingly, the load applied from the seated person M side is detected corresponding to the area where the sensor 27A is built in the shoulder seat belt 21A, and the shoulder seat belt 21A presses the seated person M side. The generated acting force is detected as a load.

  On the other hand, the waist seat belt 21B is provided with a sensor 27B. In the present embodiment, the sensor 27B detects a load applied to the waist seat belt 21B from the seated person M side in a state where the waist seat belt 21B restrains the waist and abdomen of the seat M. The seat belt 21 </ b> B is configured as a load detection sensor that detects an acting force generated by pressing the seated person M side as a load.

  In the present embodiment, the sensor 27B is sandwiched between two webbings constituting the seat belt 21, and is built in over the left and right bridging directions of the waist seat belt 21B indicated by an arrow W2.

  Accordingly, the load applied from the seated person M side is detected corresponding to the area where the sensor 27B is incorporated in the waist seat belt 21B, and the action caused by the waist seat belt 21B pressing the seated person M side. Force is detected as a load.

  The control device 30 is a device that calculates the degree of impact in cooperation with the seat belt device 20 as described above, estimates the degree of injury, and transmits the degree of impact and the degree of injury to the information transmission device 40.

  As shown in FIG. 1, the control device 30 includes a load distribution calculating unit 31, a waist seat belt position determining unit 32, and an impact degree calculating unit 33.

  The load distribution calculating unit 31 calculates the distribution of the load P applied to the waist seat belt 21B detected by the sensor 27B.

  Specifically, as shown in the operation explanatory diagram of FIG. 3, the load P applied from the waist and abdomen of the seated person M to the region where the sensor 27B is built in the waist seat belt 21B is set to the left side of the seated person M. Is calculated as a load P distributed to the hip bone region Rl applied from the right side of the seated person M, the hip bone region Rr applied from the right side of the seated person M, and the abdominal region Rc applied from the center of the seated person M.

  The load distribution calculation means 31 is applied from the left hip bone Ph of the seated person M as shown in FIG. 3 when the waist seat belt 21B is worn at appropriate positions of the waist and abdomen of the seated person M. The load distribution L of the load P including the high load Pl is calculated on the hip bone region Rl, and the load distribution L of the load P including the high load Pr given from the right hip hip Ph of the seated person M is calculated on the hip bone region Rr. calculate. Further, a load distribution L of the load P applied from the abdomen of the seated person M is calculated on the abdomen region Rc.

  On the other hand, when the lumbar seat belt 21B is mounted on the abdomen only when the lumbar seat belt 21B is shifted upward from the lumbar region of the seated person M, as shown in FIG. The load distribution L of the load P applied from the left abdomen is calculated on the hip region Rl, and the load distribution L of the load P applied from the right abdomen of the seated person M is calculated on the hip region Rr. Further, a load distribution L of the load P including the high load Pc applied from the abdomen of the seated person M is calculated on the abdominal region Rc.

  As shown in the operation explanatory diagram of FIG. 5, the load distribution calculating means 31 is based on the load distribution L, and a load applied from a predetermined region in the spanning direction W2 of the waist seat belt 21B, for example, the abdomen of the seated person M. The load P within a predetermined time in the abdominal region Rc where the load distribution L of P is calculated is integrated.

  In the present embodiment, for example, according to the obtained integral value, the integral value is grasped as the coefficient A when the integral value is relatively small, grasped as the coefficient C when the integral value is large, and the coefficient A And the coefficient C are grasped as the coefficient B.

  The lumbar seat belt position determining means 32 determines whether or not the lumbar seat belt 21B is at the hip bone position of the seated person M based on the load distribution L obtained by the load distribution calculating means 31.

  Specifically, as shown in the operation explanatory diagram of FIG. 6, the theoretical load in the case where the lumbar seat belt 21 </ b> B is properly stretched over the seated person's hip bone position is provided to the lumbar seat belt position determination means 32. The distribution pattern l is stored in advance, whether or not the load distribution L calculated by the load distribution calculating means 31 and the load distribution pattern l match, or the distribution state of the load distribution L and the distribution state of the load distribution pattern l Is compared.

  As shown in FIG. 6A, when the load distribution L calculated by the load distribution calculating means 31 substantially matches the load distribution pattern l stored in advance, the lumbar seat belt 21B is positioned at the hip bone of the seated person M. The determination result in this case is grasped as a coefficient 1.

  On the other hand, as shown in FIG. 6B, when the load distribution L calculated by the load distribution calculating means 31 does not coincide with the load distribution pattern l stored in advance, the lumbar seat belt 21B is the hip bone of the seated person M. It is determined that the position is not present, and the determination result in this case is grasped as a coefficient 2.

  The degree-of-impact calculation means 33 includes an integrated value obtained by integrating the load P within a predetermined time in a predetermined region in the spanning direction W2 of the load distribution L obtained by the load distribution calculation means 31, and a waist seat belt position determination means. Based on the determination result of 32, the degree of impact applied to the abdomen of the seated person M by the waist seat belt 21B is calculated.

  As shown in the operation explanatory diagram of FIG. 7, the coefficient of the integrated value integrated by the load distribution calculating unit 31 and the coefficient of the determination result determined by the waist seat belt position determining unit 32 are obtained by the impact degree calculating unit 33. By multiplying, the degree of impact is calculated.

  In the case where the coefficient of the integral value is A, when it is determined that the lumbar seat belt 21B is at the hip bone position of the seated person M (coefficient 1), the degree of impact is calculated as “A”. On the other hand, in the case where the coefficient of the integral value is A, when it is determined that the lumbar seat belt 21B is not located at the lumbar position of the seated person M (coefficient 2), the degree of impact is calculated as “2A”.

  When the coefficient of the integral value is B, when it is determined that the lumbar seat belt 21B is at the hip bone position of the seated person M (coefficient 1), the degree of impact is calculated as “B”. On the other hand, in the case where the coefficient of the integral value is B, when it is determined that the lumbar seat belt 21B is not at the hip position of the seated person M (coefficient 2), the degree of impact is calculated as “2B”.

  Similarly, in the case where the coefficient of the integral value is C, when it is determined that the lumbar seat belt 21B is at the hip position of the seated person M (coefficient 1), the degree of impact is calculated as “C”. On the other hand, when the coefficient of the integral value is C, when it is determined that the lumbar seat belt 21B is not at the hip bone position of the seated person M (coefficient 2), the degree of impact is calculated as “2C”.

  The degree of impact calculated by the degree-of-impact calculator 33 is transmitted to the information transmission device 40 via the communication interface 38 as an injury situation given to the seated person M from the lower back seat belt 21B.

  Further, the control device 30 receives the load distribution L calculated by the load distribution calculation unit 31 and receives a waist seat belt deviation determination unit 34, a seated body type estimation unit 35, a shoulder load distribution calculation unit 36, and an injury degree estimation. Means 37 are provided, and the degree of injury of the seated person M is estimated based on the degree of impact calculated by the degree-of-impact calculator 33.

  The lumbar seat belt deviation determining means 34 determines whether or not the lumbar seat belt 21B has been displaced from the waist of the seated person M based on the load distribution L obtained by the load distribution calculating means 31.

  In the waist seat belt deviation determination means 34, a change amount of the load distribution L when it is determined that the waist seat belt 21B is displaced is set in advance, and the change amount of the load distribution L within a predetermined time is set in advance. The amount of change in the load distribution is compared.

  Specifically, as shown in the operation explanatory diagram of FIG. 8A, when it is determined that the waist seat belt 21B is at the hip position of the seated person M based on the load distribution L, a predetermined time has elapsed. When it is determined that the lumbar seat belt 21B is at the hip position of the seated person M on the basis of the load distribution L1 after that, that is, there is no change in the load distribution L1, or within a preset range of change in the load distribution If it is a change in the case, it is determined that the waist seat belt 21B is not displaced from the position of the hip bone of the seated person M, and the determination result in this case is grasped as a coefficient 1.

  On the other hand, as shown in the operation explanatory diagram of FIG. 8B, when it is determined that the lumbar seat belt 21B is at the hip position of the seated person M based on the load distribution L, after a predetermined time has elapsed. When it is determined that the lumbar seat belt 21B is not located at the hip bone position of the seated person M based on the load distribution L1, that is, when the lumbar seat belt has changed beyond the preset range of change in the load distribution, It is determined that 21B is displaced from the position of the hip bone of the seated person M, and the determination result in this case is grasped as a coefficient 2.

  Based on the grasped determination results, the impact degree calculated by the impact degree calculating device 33 is multiplied by the determination result grasped as a coefficient.

  As shown in the operation explanatory diagram of FIG. 9, when the impact level calculated by the impact level calculation device 33 is “2B”, it is determined that the waist seat belt 21 </ b> B is not displaced from the hip position of the seated person M. In the case (coefficient 1), the degree of impact remains “2B”, and the degree of impact calculated by the degree-of-impact calculation means 33 is directly applied to the degree-of-injury estimation means 37 via the seated body type estimation means 35 described later. Entered.

  On the other hand, when the degree of impact calculated by the degree-of-impact calculator 33 is “2B”, when it is determined that the lumbar seat belt 21B is displaced from the hip position of the seated person M (coefficient 2), the degree of impact is Is corrected to “4B”, and the corrected impact degree “4B” is input to the injury degree estimation means 37 via the seated body type estimation means 35.

  The seated person body shape estimating means 35 estimates the body shape of the seated person M based on the load distribution L obtained by the load distribution calculating means 31.

  This seat occupant body shape estimation means 35 calculates the waist circumference of the seat occupant M based on the load distribution L obtained by the load distribution calculation means 31, and estimates the body shape of the seat occupant M based on the calculated waist circumference. It is constituted by.

  Specifically, as shown in the operation explanatory diagram of FIG. 10, when the load distribution calculating unit 31 calculates the load distribution La, the seated body type estimating unit 35 is based on the waist circumference calculated from the load distribution La. The seated person M is estimated to be thin, and the estimation result in this case is grasped as a coefficient 1.

  When the load distribution calculating unit 31 calculates the load distribution Lb, the seat occupant body type estimating unit 35 estimates that the seat occupant M is medium based on the waist calculated from the load distribution Lb. The result is grasped as a factor of 2.

  Further, when the load distribution calculating means 31 calculates the load distribution Lc, the seated body type estimating means 35 estimates that the seated person M is thick based on the waist circumference calculated from the load distribution Lc. The estimation result is grasped as a coefficient 3.

  Based on these grasped estimation results, the degree of impact calculated by the degree-of-impact calculation device 33 or the degree of impact corrected by the lumbar seatbelt deviation determining means 34 was grasped as a coefficient by the seated body type estimating means 35. The estimation result is multiplied.

  As shown in the operation explanatory diagram of FIG. 11, when the degree of impact is corrected to “4B” by the waist seat belt deviation determination means 34, it is estimated that the body shape of the seated person M is lean (coefficient 1). ), The degree of impact remains “4B”, and the degree of impact corrected by the lumbar seat belt deviation determining unit 34 is directly input to the degree of injury estimating unit 37 via the shoulder load distribution calculating unit 36 described later. Is done.

  On the other hand, when the degree of impact is corrected to “4B” by the waist seat belt deviation determination means 34, when the body size of the seated person M is estimated to be thick (coefficient 3), the degree of impact is set to “12B”. The corrected impact level “12B” is input to the injury level estimation unit 37 via the shoulder load distribution calculation unit 36.

  The shoulder load distribution calculating means 36 includes a sensor 27A built in the shoulder seat belt 21A based on the load P detected by the sensor 27A that detects the load P applied from the seated person M to the shoulder seat belt 21A. The load distribution corresponding to the region is calculated.

  The configuration of the shoulder load distribution calculating unit 36 is the same as the configuration of the load distribution calculating unit 31, and similarly to the load distribution calculating unit 31, the shoulder direction seat belt 21 </ b> A spanning direction W <b> 1 is based on the load distribution. The load P within a predetermined time in the predetermined region is integrated.

  In the present embodiment, for example, the integral value is grasped as the coefficient a when the integral value is relatively small, as the coefficient a, and as the coefficient c when the integral value is large, according to the obtained integral value. And the coefficient c are grasped as the coefficient b.

  Based on the calculated integral value, the impact level calculated by the impact level calculation device 33, or the impact level corrected by either one of the waist seat belt deviation determination unit 34 and the seated body type estimation unit 35 is corrected. Is multiplied by the calculation result grasped as a coefficient by the shoulder load distribution calculating means 36.

  As shown in the operation explanatory diagram of FIG. 12, when the degree of impact is corrected to “4B” by the waist seat belt deviation determination unit 34 and the level of impact is corrected to “12B” by the seated body type estimation unit 35, When the integrated value is calculated to be a (coefficient 1), the impact level remains “12B”, and the impact level corrected by the seated body type estimation unit 35 remains unchanged in the injury level estimation unit 37. Entered.

  On the other hand, in the case where the degree of impact is corrected to “4B” by the waist seat belt deviation determination unit 34 and the level of impact is corrected to “12B” by the seated body type estimation unit 35, the integrated value is calculated to be c. In the case (coefficient 3), the impact level is corrected to “36B”, and the corrected impact level “36B” is input to the injury level estimation means 37.

  The degree of injury estimation means 37 is either the degree of impact calculated by the degree-of-impact calculation device 33, or the waist seat belt deviation determination means 34, the seated body type estimation means 35, and the shoulder load distribution calculation means 36, or any of them. The degree of injury of the seated person M is estimated based on the degree of impact corrected by the above.

  As shown in the schematic diagram of the injury degree estimation means 37 in FIG. 13, the injury degree estimation means 37 includes an impact degree correspondence table Ta that assigns the input impact degree to the injury degree corresponding to the impact degree. Injury degrees “Z1” to “Z5” corresponding to are preset.

  In the present embodiment, the degree of impact “2B” calculated by the degree-of-impact calculator 33 is changed to “36B” via the waist seat belt deviation determining unit 34, the seated body type estimating unit 35, and the shoulder load distribution calculating unit 36. Since it is corrected and input to the injury level estimation means 37, “Z4”, which is an injury level corresponding to the input impact level of “36B”, is estimated as the injury level of the seated person M.

  The degree of injury estimated by the degree-of-injury estimation device 37 is transmitted to the information communication device 40 via the communication interface 38 as an injury situation given to the seated person M from the waist seat belt 21B.

  The information transmission device 40 may be a so-called car navigation system that is an in-vehicle display device that performs route guidance from a current value of a vehicle to a destination or the like, or a so-called smartphone that is a multifunctional portable terminal.

  Further, the information transmission device 40 may be a storage area of a so-called telematics system (Telematics System) that is an in-vehicle communication system that is mounted on a vehicle and communicates with the outside, or a storage area of a server computer that is a storage medium.

  In particular, if the information transmission device 40 is a telematics system, it is possible to communicate with the information communication device of the medical facility, so that both the impact level and the injury level or either one can be promptly transmitted to the medical facility. It can be expected that prompt medical treatment will be given.

  When both the degree of impact and the degree of injury are transmitted to these information transmission devices 40 or any one of them is displayed on each information transmission device 40, the display mode is changed according to the degree of the degree of injury. Can be configured to.

  For example, when the information transmission device 40 is a smartphone and the degree of injury is large, not only the impact level and the injury level are displayed on the screen of the smartphone, but also the displayed color is changed or the display is blinked. Or a voice display as well as a screen display.

  Thereby, since the display mode of the degree of impact and the degree of injury displayed on the information transmission device 40 can be changed in accordance with the degree of injury, it is possible to prompt the attention depending on the degree of injury.

  Next, a procedure for calculating the degree of impact and a procedure for estimating the degree of injury based on the calculated degree of impact by the control device 30 of the transmission device 10 will be described.

  FIG. 14 is a flowchart showing a procedure for calculating the degree of impact at the time of a vehicle collision by the control device 30 and a procedure for estimating the degree of injury based on the calculated degree of impact.

  For example, during normal traveling such as traveling on a flat pavement at a substantially constant speed, the load P detected by the sensor 27B is extremely small, so that the impact is calculated based on the load distribution L calculated by the load distribution calculating means 31. The degree of impact calculated by the degree calculation means 33 is also small enough to be ignored.

  Therefore, in this case, even if the lumbar seat belt position determination means 32 determines that the lumbar seat belt 21B is not in the lumbar position, the calculated impact level is not substantially affected.

  On the other hand, as shown in FIG. 14, when a load P is applied to the waist seat belt 21B from the seated person M side due to the collision of the vehicle in step S1, the sensor 27B detects the load P in step S2.

  In step S3, the load distribution calculating means 31 applies the load P applied from the waist and abdomen of the seated person M detected by the sensor 27B to the hip region Rl applied from the left side of the seated person M, the right side of the seated person M. It is calculated as a load distribution L distributed in the hip bone region Rr applied from the head and the abdominal region Rc applied from the center of the seated person M.

  Further, in step S3, the load distribution calculating unit 31 is based on the load distribution L, for example, in the abdominal region Rc where the load distribution L of the load P applied from the abdomen of the seated person M is calculated within a predetermined time. Integrate the load P. The coefficient of the integral value is calculated to be B, for example, in the present embodiment.

  Thereafter, in step S4, based on the load distribution L obtained by the load distribution calculating means 31, the waist seat belt position detecting means 32 determines whether or not the waist seat belt 21B is at the hip bone position of the seated person M. The

  In this step S4, when the load distribution L substantially coincides with the load distribution pattern l stored in advance, it is determined that the lumbar seat belt 21B is at the hip position of the seated person M (coefficient 1).

  In this case, in step S5, the coefficient B of the integrated value integrated by the load distribution calculating unit 31 and the coefficient of the determination result that the lumbar seat belt 21B in the lumbar seat belt position determining unit 32 is at the lumbar position of the seated person M. 1 is multiplied by the impact degree calculating means 33.

  By this multiplication, the impact level is calculated in step S6. In the present embodiment, since the coefficient of the integral value is B and the determination result (coefficient 1) is that the waist seat belt 21B is at the hip position of the seated person M, the degree of impact is “B”. Is calculated.

  On the other hand, if the load distribution L does not coincide with the previously stored load distribution pattern 1 in step S4, the waist seat belt position detecting means 32 determines that the waist seat belt 21B is not at the waist position of the seated person M. (Coefficient 2).

  In this case, in step S7, the coefficient B of the integrated value integrated by the load distribution calculating means 31 and the coefficient of the determination result that the waist seat belt 21B in the waist seat belt position determining means 32 is not at the hip bone position of the seated person M. 2 is multiplied by the impact degree calculation means 33.

  By this multiplication, the impact level is calculated in step S6. In the present embodiment, since the coefficient of the integral value is B and the determination result (coefficient 2) is that the waist seat belt 21B is not at the hip bone position of the seated person M, the impact level is calculated to be 2B. Is done.

  When it is determined that the lumbar seat belt 21B is not located at the hip bone position of the seated person M and the calculated impact level is “2B”, the calculated impact level 2B indicates that the seated person M has the waist seat belt in step S8. The injury situation given from 21B is transmitted to the information transmission device 40 via the communication interface 38.

  The calculated degree of impact is not necessarily transmitted to the information transmission device 40, but is appropriately transmitted to the information transmission device 40 as required.

  On the other hand, in step S9, based on the load distribution L obtained by the load distribution calculating means 31, the waist seat belt deviation determining means 34 determines whether or not the waist seat belt 21B has been displaced from the waist of the seated person M. .

  In this step S9, when the load distribution L calculated by the load distribution calculating means 31 has changed beyond the preset range of change in the load distribution, the lumbar seat belt 21B is the hip bone of the seated person M. It is determined that the position is not present (coefficient 2).

  In this case, in step S10, the degree of impact “2B” is multiplied by the coefficient 2 of the determination result that the lumbar seat belt 21B is not at the hip position of the seated person M, and the degree of impact is changed from “2B” to “4B”. It is corrected.

  On the other hand, when the load distribution L calculated by the load distribution calculation means 31 does not change after the lapse of a predetermined time in step S10, or is a change within a preset range of change in the load distribution. It is determined that the lumbar seat belt 21B is at the hip bone position of the seated person M (coefficient 1).

  In this case, in step S11, the impact degree “2B” is multiplied by the coefficient 1 of the determination result that the waist seat belt 21B is at the hip position of the seated person M (impact degree is “2B”).

  When the degree of impact is corrected to “4B”, the body type of the seated person M is estimated by the seated person body shape estimating means 35 based on the load distribution L obtained by the load distribution calculating means 31 in step S12. The

  In step S12, the seat occupant body type estimation means 35 estimates that the seat occupant M is thin, medium, or thick based on the load distributions La to Lc calculated by the load distribution calculation means 31, and each of them is determined. It grasps | ascertains as a coefficient 1-3 according to an estimation result.

  In step S <b> 13, the impact degree “4B” is multiplied by the coefficient of the estimation result based on the estimation result obtained by the seated body type estimation unit 35. In the present embodiment, the occupant body type estimation means 35 estimates that the occupant M is thick (coefficient 3). The coefficient 3 is multiplied by the impact degree “4B”, and the impact degree starts from “4B”. It is corrected to “12B”.

  When the impact is corrected to “12B” and the load P is applied to the shoulder seat belt 21A from the seated person M side, the sensor 27A detects the load P in step S14.

  In step S15, the shoulder load distribution calculating means 36 calculates the load P detected by the sensor 27A as a load distribution in a predetermined region extending from the shoulder of the seated person M to the chest, and based on the load distribution, The load P within a predetermined time in a predetermined region in the crossing direction W1 of the partial seat belt 21A is integrated. The integral value is calculated as coefficients a to c.

  The integral values calculated as the coefficients a to c are multiplied by the impact degree “12B” in step S16. In the present embodiment, the integral value is calculated as the coefficient 3, and the coefficient 3 is multiplied by the impact level “12B” to correct the impact level from “12B” to “36B”.

  Thereafter, in step S17, the corrected impact level “36B” is input to the injury level estimation means 37, and in step S18, the injury level is estimated based on the input impact level “36B”.

  In the present embodiment, “Z4”, which is the injury level corresponding to the input “36B” impact level, is estimated as the injury level of the seated person M.

  The estimated degree of injury “36B” is transmitted to the information transmission device 40 via the communication interface 38 as an injury situation given to the seated person M from the lumbar seat belt 21B in step S19.

  The estimated degree of injury is not necessarily transmitted to the information transmission device 40, but is appropriately transmitted to the information transmission device 40 as required.

  The control device 30 of the transmitting device 10 having the above configuration detects the load P applied to the waist seat belt 21B by the collision of the vehicle by the sensor 27B, and the load applied from the waist and abdomen of the seated person M detected by the sensor 27B. P is distributed in the hip region Rl given from the left side of the seated person M, the hip region Rr given from the right side of the seated person M, and the abdominal region Rc given from the central part of the seated person M. Calculated as L.

  Based on the load distribution L, the impact level calculating means 33 can calculate the impact level applied to the seated person M, and based on the calculated impact level, the injury level estimating means 37 can calculate the impact level. The degree of injury can be estimated.

  Since the transmitting device 10 transmits both the impact degree and the degree of injury estimated based on the impact degree, or one of them to the information transmission device 40, the transmitted impact degree and / or the degree of injury is any one of them. On the basis of this, it is possible to take measures relating to the treatment of the seated person quickly and appropriately.

  The degree of injury is estimated on the basis of the degree of impact. After the degree of impact is calculated by the degree-of-impact calculation means 33, the waist seat belt deviation determination means 34, the seated body type estimation means 35, and the shoulder load distribution calculation. Each result of the means 36 is factorized and multiplied by the impact.

  Therefore, since the situation at the time of the vehicle collision can be accurately reflected in the degree of impact, the accuracy of the degree of injury estimated based on the degree of impact is also improved.

  The information transmission device 40 can be configured by various information transmission devices such as a car navigation system, a smartphone, a telematics system, and a storage area of a server computer.

  Therefore, it is possible to transmit the impact degree and the degree of injury estimated based on the impact degree to the optimum information transmission device according to the purpose of use or request of the transmitting device 10, or any one of them.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. In the present embodiment, only a part of the configuration of the load distribution calculation unit and the part of the impact degree calculation unit different from the first embodiment will be described, and the rest of the configuration is the first embodiment. Since it is the same as that of this form, the detailed description is abbreviate | omitted.

  In the present embodiment, the load distribution calculating means 31 calculates the distribution of the load P applied to the waist seat belt 21B detected by the sensor 27B as the load distribution L.

  FIG. 15 is an explanatory diagram of the operation of the load distribution calculating unit 31. As shown in the figure, the load distribution calculating means 31 calculates the load distribution L of the load P applied from the predetermined region in the spanning direction W2 of the waist seat belt 21B, for example, the abdomen of the seated person M, based on the load distribution L. The maximum load value X in the calculated abdominal region Rc is detected.

  The load distribution detection means 31 stores in advance a theoretical load value when the lumbar seat belt 21B is properly stretched over the seated person's hip bone position as a threshold value T, and the detected maximum load value. The difference value Δ is calculated by subtracting the threshold value T from X.

  In the present embodiment, for example, when the difference value Δ is negative, the difference value Δ is grasped as the coefficient A, and when the difference value Δ is 0, the difference value Δ is defined as the coefficient B. A case where the difference value Δ is positive and is recognized is recognized as the coefficient C.

  FIG. 16 is an explanatory diagram of the operation of the impact degree calculation means 33.

  As shown in the figure, the degree-of-impact calculation unit 33 calculates the difference value calculated by subtracting the threshold T from the maximum load value X in a predetermined region in the spanning direction W2 of the load distribution L obtained by the load distribution calculation unit 31. Based on Δ and the determination result by the waist seat belt position determination means 32, the degree of impact applied to the abdomen of the seated person M by the waist seat belt 21B is calculated.

  The coefficient of the difference value Δ calculated by the load distribution calculating unit 31 and the coefficient of the determination result determined by the waist seat belt position determining unit 32 are multiplied by the impact level calculating unit 33 to calculate the impact level. .

  When the coefficient of the difference value Δ is A, when it is determined that the lumbar seat belt 21B is at the hip position of the seated person M (coefficient 1), the degree of impact is calculated as “A”. On the other hand, when the coefficient of the difference value Δ is A, when it is determined that the lumbar seat belt 21B is not at the hip bone position of the seated person M (coefficient 2), the degree of impact is calculated as “2A”.

  When the coefficient of the difference value Δ is B, when it is determined that the lumbar seat belt 21B is at the hip position of the seated person M (coefficient 1), the degree of impact is calculated as “B”. On the other hand, when the coefficient of the difference value Δ is B, when it is determined that the lumbar seat belt 21B is not at the hip bone position of the seated person M (coefficient 2), the degree of impact is calculated as “2B”.

  Similarly, when the coefficient of the difference value Δ is C, when it is determined that the lumbar seat belt 21B is at the hip position of the seated person M (coefficient 1), the degree of impact is calculated as “C”. . On the other hand, when the coefficient of the difference value Δ is C, when it is determined that the lumbar seat belt 21B is not at the hip bone position of the seated person M (coefficient 2), the degree of impact is calculated as “2C”.

  In the transmitting device 10 configured as described above, the impact level is a difference value calculated by subtracting the threshold T from the maximum load value X in a predetermined region in the spanning direction W of the load distribution L obtained by the load distribution calculating unit 31. Therefore, the degree of impact as a mechanical quantity acting on the seated person can be favorably calculated by a simple calculation method.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the invention. In each of the above-described embodiments, the case where the transmission device 10 is provided in a vehicle has been described. However, for example, the transmission device 10 may be provided in a seat of a railway vehicle, an aircraft, a ship, or the like.

DESCRIPTION OF SYMBOLS 10 Transmission apparatus 20 Seat belt apparatus 21 Seat belt 21A Shoulder seat belt 21B Lumbar seat belt 27A, 27B Sensor 30 Control apparatus 31 Load distribution calculation means 32 Lumbar seat belt position determination means 33 Impact degree calculation means 34 Abdominal seat belt deviation determination means 35 Seated body type estimating means 36 Shoulder load distribution calculating means 37 Injury degree estimating means 40 Information transmission device L Load distribution M Seated person P Load Rl Hip bone region Rr Hip bone region Rc Abdominal region W1, W2 Crossing direction X Maximum load value Δ Difference value

Claims (8)

Estimated based on the degree of impact given to the seated person by the waist seat belt of the seat belt device having a waist seat belt that is mounted on the waist of the seated person sitting on the left and right, and the degree of impact Transmitting the degree of injury together, or any one of them, a device for transmitting an injury situation by a waist seat belt that transmits as an injury situation given from the waist seat belt,
The seat belt device includes a sensor that is provided on the waist seat belt, and detects a load applied from the seated person in the wearing state in a predetermined region in a left-right crossing direction of the waist seat belt,
Load distribution calculating means for calculating a load distribution in the crossing direction of the left and right of the waist seat belt of the load detected by the sensor;
Lumbar seat belt position determining means for determining whether or not the lumbar seat belt is in the hip position of the seated person based on the load distribution obtained by the load distribution calculating means;
The degree of injury for estimating the degree of injury given to the seated person based on the information on the load distribution obtained by the load distribution calculating unit and the degree of impact calculated from the determination result by the waist seat belt position determining unit And a control device having estimation means,
Transmitting both the degree of impact and the degree of injury to the information transmission device, or transmitting either one of them as an injury situation given from the waist seat belt, a device for transmitting an injury situation by the waist seat belt . The controller is
Of the load distribution obtained by the load distribution calculating means, when the load value in a predetermined region in the crossing direction of the left and right waist seat belts changes more than preset within a predetermined time, the waist seat A waist seat belt shift determination means for determining that the belt has shifted from the hip bone position of the seated person,
The injury state transmission device according to claim 1, wherein the injury level is estimated by adding a determination result of the waist seat belt deviation determination means. The controller is
A seat occupant body shape estimating means for estimating the body shape of the seat occupant from the load distribution obtained by the load distribution calculating means;
3. The injury state transmitting device according to claim 1 or 2, wherein the injury degree is estimated by adding the estimated result of the seated person estimated by the seated body type estimating means. The seat belt device includes:
A shoulder seat belt that restrains the upper body of the seated person seated on the seat;
A shoulder seat belt sensor for detecting a load input to the shoulder seat belt,
The device for transmitting an injury situation by a waist seat belt according to any one of claims 1 to 3, wherein the injury level is estimated by adding a load detected by the shoulder seat belt sensor. The information transmission device is:
It is a vehicle-mounted display apparatus or a multifunctional portable information terminal, The transmission device of the injury condition by the waist seat belt of any one of Claims 1-4 characterized by the above-mentioned. The information transmission device is:
It is an in-vehicle communication system which is mounted in a vehicle and communicates with the outside, The transmission device of the injury situation by the waist seat belt according to any one of claims 1 to 4.   The said information transmission apparatus is a storage medium, The transmission device of the injury condition by the waist seat belt of any one of Claims 1-4 characterized by the above-mentioned.   The device for transmitting an injury situation by a lumbar seat belt according to any one of claims 1 to 7, wherein a display mode of the transmitted impact and injury is changed according to the injury.

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