JP2017206200A - Device for controlling occupant protection device, occupant protection system and method for controlling occupant protection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for controlling an occupant protection device that can allow an occupant protection device to properly execute a function of protecting an occupant while inhibiting comfort of an occupant from being impaired, and to provide an occupant protection system and a method for controlling an occupant protection device.SOLUTION: A device 1 for controlling an occupant protection device 2 includes: an identification part 11; and control parts 12, 13. The identification part 11 identifies whether other vehicle approaching own vehicle is in automatic operation or manual operation. The control parts 12, 13 perform operation control for an occupant protection device 2 provided in the own vehicle depending on an identification result by the identification part 11.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an occupant protection device control device, an occupant protection system, and an occupant protection device control method.

  Conventionally, a vehicle is provided with an occupant protection device that protects the occupant during a vehicle collision, such as a seat belt, a seat belt pretensioner, and an air bag. Such an occupant protection device may not fully exhibit the occupant protection function when the occupant's posture is not appropriate. For this reason, there is an occupant protection device that optimizes the amount of occupant restraint by a seat belt when the approach of another vehicle is detected (see, for example, Patent Document 1).

  On the other hand, in recent vehicles, seat arrangements are diversified in consideration of passenger comfort in a company room, and the degree of freedom of the passenger posture is increased. In addition, when automatic driving of vehicles is put into practical use in the future, the vehicles increase to the degree of freedom of the occupant posture in the driver's seat.

JP 2007-22338 A

  However, when the occupant is in a free posture in the vehicle interior, as described above, the occupant protection device may not be able to exhibit the occupant protection function. In addition, even if an approach of another vehicle is detected, a collision with the other vehicle may be avoided. Every time an approach of another vehicle is detected, the occupant protection device is activated in advance so that the occupant posture is appropriate. Otherwise, passenger comfort is impaired.

  Embodiments of the present invention have been made in view of the above, and control of an occupant protection device capable of causing the occupant protection device to exhibit the occupant protection function while suppressing the loss of passenger comfort. An object is to provide a device, an occupant protection system, and a control method for the occupant protection device.

  A control device for an occupant protection device according to an embodiment includes an identification unit and a control unit. The identification unit identifies whether another vehicle approaching the host vehicle is operating automatically or manually. A control part performs operation control according to the identification result by the above-mentioned discernment part to the crew member protection device provided in the above-mentioned vehicles.

  A control device for an occupant protection device, an occupant protection system, and a control method for an occupant protection device according to an embodiment allow the occupant protection device to sufficiently exhibit an occupant protection function while suppressing a loss of passenger comfort. be able to.

Drawing 1 is an explanatory view showing an example of vehicles provided with a control device concerning an embodiment. FIG. 2 is a block diagram illustrating a configuration of the occupant protection system and the control device according to the embodiment. FIG. 3 is an explanatory diagram of occupant corresponding winding amount information according to the embodiment. FIG. 4 is an explanatory diagram illustrating an example of operation control by the pre-collision control unit according to the embodiment. FIG. 5 is an explanatory diagram illustrating an example of operation control by the pre-collision control unit according to the embodiment. FIG. 6 is an explanatory diagram illustrating an example of operation control by the pre-collision control unit according to the embodiment. FIG. 7 is an explanatory diagram illustrating an example of operation control by the pre-collision control unit according to the embodiment. FIG. 8 is a flowchart illustrating processing executed by the control device according to the embodiment.

  Hereinafter, a control device for an occupant protection device, an occupant protection system, and a control method for an occupant protection device according to embodiments will be described in detail with reference to the accompanying drawings. In addition, this invention is not limited by this embodiment.

  First, an example of a vehicle provided with the control device according to the embodiment will be described with reference to FIG. FIG. 1 is an explanatory diagram illustrating an example of a vehicle (hereinafter, referred to as “own vehicle 100”) provided with the control device 1 according to the embodiment. FIG. 1 shows the arrangement of the control device 1, the occupant protection device, and various sensors. An example of a specific configuration of the occupant protection system according to the embodiment will be described later with reference to FIG.

  Here, the case where the host vehicle 100 is a four-seat sedan type with the right steering wheel (the front right seat is the driver seat 41) will be described as an example, but the vehicle provided with the control device 1 is the left steering wheel. It may be a vehicle other than a sedan type.

  The own vehicle 100 has an automatic driving function, and during the automatic driving, the rotational position of the seat surface of the front driver seat 41 and the front passenger seat 42 and the inclination angle of the backrest can be freely changed. is there. In addition, the host vehicle 100 can freely change the rotational position of the seat surface of the passenger seat 42, the inclination angle of the backrest, and the inclination angle of the backrest of the driver seat 41 during manual driving.

  As shown in FIG. 1, the host vehicle 100 includes a radar 36, a communication device 35, an automatic driving device 101, a collision sensor 31, a three-dimensional sensor 32, a seat orientation sensor 33, and a seat angle sensor 34.

  In addition, the host vehicle 100 includes a plurality of seat modules 21, seat belt modules 22, seat belt pretensioners (hereinafter simply referred to as “pretensioners 23”), and airbags 24, each functioning as an occupant protection device. Prepare. Furthermore, the host vehicle 100 includes a control device 1 that controls the operation of the occupant protection device.

  The radar 36 is, for example, a millimeter wave radar, and detects other vehicles approaching the host vehicle 100, obstacles, lanes, and the like. The communication device 35 is a communication module that performs inter-vehicle communication with another vehicle approaching the host vehicle 100.

  When the automatic driving mode is selected by the user, the automatic driving device 101 automatically controls acceleration / deceleration and steering of the own vehicle 100 based on the detection results of other vehicles, obstacles, and lanes by the radar 36. Thus, the vehicle 100 automatically travels.

  The collision sensor 31 is, for example, a three-dimensional acceleration sensor that detects an impact applied to the host vehicle 100, and detects a collision of the host vehicle 100. The collision sensors 31 are provided at, for example, the four corners of the vehicle (the vehicle front right side, the vehicle front left side, the vehicle rear right side, and the vehicle rear left side) and the center positions of both side surfaces of the vehicle.

  The airbag 24 is a device that, when a collision of the host vehicle 100 is detected by the collision sensor 31, the bag body is inflated instantaneously, and the impact to the occupant is absorbed and mitigated by the inflated bag body. For example, the airbag 24 is provided in front of the driver seat 41, in front of the passenger seat 42, on the window side of the driver seat 41, the passenger seat 42, and the rear seat 43.

  The pretensioner 23 is a device that prevents the occupant from being thrown out of the vehicle by instantaneously retracting the seat belt and restraining the occupant to the seat when the collision of the host vehicle 100 is detected by the collision sensor 31. It is.

  The three-dimensional sensor 32 is, for example, a TOF (Time Of Flight) sensor. The three-dimensional sensor 32 is provided in the center of the dashboard in the vehicle cabin, and measures the presence / absence, position, and three-dimensional shape of an occupant.

  The seat orientation sensor 33 is provided in each of the driver seat 41 and the passenger seat 42, and is a sensor that detects the rotational position of the seat surface in the seat. The seat angle sensor 34 is a sensor that is provided in each of the driver seat 41 and the passenger seat 42 and detects an angle (reclining angle) between the seat surface and the backrest of the seat.

  The seat module 21 is a device that is provided in each of the driver's seat 41 and the passenger seat 42 and changes the mode of the seat by operation control by the control device 1. Specifically, the seat module 21 changes the rotational position of the seat surface in the seat and the reclining angle of the backrest. The seat belt module 22 is a device that is provided in each of the driver seat 41 and the passenger seat 42 and that winds and unwinds the seat belt by operation control by the control device 1.

  The control device 1 is a device that controls the operation of the seat module 21, the seat belt module 22, the pretensioner 23, and the airbag 24 that function as an occupant protection device. When the collision of the host vehicle 100 is detected, the control device 1 protects the occupant by operating the pretensioner 23 and the airbag 24.

  Further, the control device 1 controls the operation of the seat module 21 and the seat belt module 22 when the approach of another vehicle to the host vehicle 100 is detected while the host vehicle 100 is in automatic driving, thereby protecting passengers. I do.

  However, when the control device 1 operates the seat module 21 and the seat belt module 22 against the intention of the occupant each time an approach of another vehicle to the host vehicle 100 is detected, the comfort of the occupant in the passenger compartment is improved. There is a risk of damage.

  For example, even if the approach of another vehicle to the own vehicle 100 is detected, if the other vehicle approaching the own vehicle 100 and the own vehicle 100 are both in automatic driving, the collision is caused by the automatic driving control of both the own vehicle 100 and the other vehicle. Is likely to be avoided.

  For this reason, when both the other vehicle approaching to the own vehicle 100 and the own vehicle 100 are in the automatic operation, the protection of the passenger by the operation of the seat module 21 and the seat belt module 22 is not necessarily required. In such a case, if the control device 1 operates the seat module 21 and the seat belt module 22 against the passenger's intention to protect the passenger, the comfort of the passenger in the passenger compartment is impaired.

  On the other hand, when the other vehicle approaching the own vehicle 100 is in the manual operation, the other vehicle may behave unexpectedly even if it tries to avoid the collision with the other vehicle by the automatic driving control of the own vehicle 100. May not be avoided.

  For this reason, when another vehicle approaching the host vehicle 100 is operated manually, safety is more important than passenger comfort, and the passenger must be protected by the operation of the seat module 21 and the seat belt module 22. .

  Therefore, the control device 1 identifies whether another vehicle approaching the host vehicle 100 is operating automatically or manually, and the other vehicle is operating automatically or manually with respect to the seat module 21 and the seat belt module 22. The operation control according to the identification result is performed. Thus, the control device 1 can cause the occupant protection device to exhibit the occupant protection function while suppressing the passenger comfort from being impaired.

  Further, the control device 1 can more appropriately protect the occupant by the occupant protection device by determining the amount of the seat belt wound by the seat belt module 22 based on the measurement result of the occupant by the three-dimensional sensor 32. Can do.

  Next, the configuration of the occupant protection system and the control device 1 according to the embodiment will be described with reference to FIG. FIG. 2 is a block diagram illustrating a configuration of the occupant protection system and the control device 1 according to the embodiment. 2 that are the same as those shown in FIG. 1 are given the same reference numerals as those shown in FIG. 1, and detailed descriptions thereof are omitted.

  As shown in FIG. 2, the occupant protection system according to the embodiment includes a control device 1, an occupant protection device 2, a communication device 35, a radar 36, a three-dimensional sensor 32, a seat orientation sensor 33, a seat angle sensor 34, and a collision sensor 31. , And an automatic driving device 101.

  The control device 1 is connected to the occupant protection device 2, the communication device 35, the radar 36, the three-dimensional sensor 32, the seat orientation sensor 33, the seat angle sensor 34, the collision sensor 31, and the automatic driving device 101. The occupant protection device 2 includes a seat module 21, a seat belt module 22, a pretensioner 23, and an airbag 24.

  The control device 1 includes an identification unit 11, a pre-collision control unit 12, a collision control unit 13, and a storage unit 14. The storage unit 14 stores occupant corresponding winding amount information 15 and seat appropriateness mode information 16. The storage unit 14 is, for example, a semiconductor memory device such as a RAM (Random Access Memory) or a flash memory, or a storage device such as an HDD (Hard Disk Drive) or an optical disk.

  The identification unit 11, the pre-collision control unit 12, and the on-collision control unit 13 are, for example, a microcomputer having a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an input / output port, and the like. Includes various circuits.

  The identification unit 11, the pre-collision control unit 12, and the on-collision control unit 13 are realized, for example, by the CPU reading and executing a program stored in the ROM. Note that the identification unit 11, the pre-collision control unit 12, and the on-collision control unit 13 may be partially or entirely configured by hardware such as ASIC (Application Specific Integrated Circuit) or FPGA (Field Programmable Gate Array). Good. Hereinafter, the identification unit 11, the pre-collision control unit 12, and the collision control unit 13 will be described in detail.

  When a signal indicating that automatic driving is started from the automatic driving device 101, the identification unit 11 acquires information indicating the size of the object approaching the host vehicle from the radar 36 and the distance to the object. Further, the identification unit 11 determines whether or not another vehicle is approaching the host vehicle 100 based on information acquired from the radar 36. In addition, the identification part 11 can set the distance to the other vehicle determined to be approaching to the own vehicle 100 to an arbitrary distance.

  When the identification unit 11 determines that the other vehicle is approaching the host vehicle 100, the identification unit 11 causes the communication device 35 to try the vehicle-to-vehicle communication with the other vehicle. The result of whether or not communication is established is acquired.

  The identification unit 11 determines that the other vehicle is in automatic driving when acquiring information indicating that the inter-vehicle communication is established with the other vehicle from the communication device 35. Moreover, the identification part 11 determines with the other vehicle being in manual driving, when acquiring the information which shows that vehicle-to-vehicle communication was not materialized between other vehicles from the communication apparatus 35. FIG.

  The communication device 35 transmits a request for information indicating whether automatic driving or manual driving is being performed to another vehicle after inter-vehicle communication is established with the other vehicle, and outputs a response to the identification unit 11. It may be a configuration. In such a case, the identification unit 11 determines whether the other vehicle is operating automatically or manually based on a response from the other vehicle. When the identification unit 11 determines that another vehicle approaching the host vehicle 100 is in manual operation, the identification unit 11 outputs information indicating the fact to the pre-collision control unit 12.

  When the information indicating that another vehicle approaching the host vehicle 100 is being manually operated is input from the identification unit 11, the pre-collision control unit 12 detects the detection results from the seat orientation sensor 33 and the seat angle sensor 34, respectively. To get.

  Further, the pre-collision control unit 12 determines the rotational positions and reclining angles of the driver seat 41 and the passenger seat 42 based on the detection results acquired from the seat orientation sensor 33 and the seat angle sensor 34.

  The pre-collision control unit 12 matches the determined rotational position and reclining angle of the driver seat 41 and the passenger seat 42 with the rotational position and reclining angle included in the seat appropriate mode information 16 stored in the storage unit 14. It is determined whether or not.

  The seat appropriateness mode information 16 includes information indicating appropriate rotation positions and reclining angles of the driver seat 41 and the passenger seat 42 that allow the passenger to be appropriately protected by the operation of the pretensioner 23 and the airbag 24.

  The appropriate rotational position and reclining angle are merely examples, and differ from the rotational position and reclining angle described above depending on the arrangement positions of the pretensioner 23 and the airbag 24 in the vehicle interior.

  For example, when the occupant protection function by the pretensioner 23 and the airbag 24 is most appropriately exhibited in a state where the front seat and the rear seat face each other, the rotational position of the seat where the front seat and the rear seat face each other is The rotation position is appropriate.

  The pre-collision control unit 12 sets a control signal to match when the current rotation position and reclining angle of the driver seat 41 and the passenger seat 42 do not match the rotation position and reclining angle included in the seat appropriate mode information 16. To 21.

  That is, the pre-collision control unit 12 changes the modes of the driver seat 41 and the passenger seat 42 until the current rotational position and reclining angle match the rotational position and reclining angle included in the seat appropriate mode information 16.

  Accordingly, the pre-collision control unit 12 can appropriately protect the occupant by the occupant protection device 2. In addition, the pre-collision control unit 12 does not operate the seat module 21 when the other vehicle approaching the host vehicle 100 is in an automatic operation with a low possibility of a collision, so that passenger comfort is impaired. Can be suppressed.

  In addition, the control unit 12 before the collision outputs a control signal for winding the seat belt when information indicating that another vehicle approaching the host vehicle 100 is manually operated is input from the identification unit 11. Output to the belt module 22.

  At this time, the control unit 12 before the collision causes the seat belt module 22 to send a control signal for winding the seat belt until a winding amount that allows the occupant to be appropriately protected by the operation of the pretensioner 23 and the airbag 24 is reached. Output to.

  Specifically, the pre-collision control unit 12 indicates a measurement result from the three-dimensional sensor 32 when information indicating that another vehicle approaching the host vehicle 100 is being manually operated is input from the identification unit 11. Get information.

  Subsequently, the pre-collision control unit 12 determines the presence / absence of the occupant, the physique, the sitting position, and the posture for each seat based on the measurement result acquired from the three-dimensional sensor 32, and is stored in the determination result and the storage unit 14. The seat belt winding amount is determined based on the occupant corresponding winding amount information 15.

  Here, with reference to FIG. 3, the occupant corresponding winding amount information 15 stored in the storage unit 14 will be described. FIG. 3 is an explanatory diagram of the occupant corresponding winding amount information 15 according to the embodiment. As shown in FIG. 3, the occupant corresponding winding amount information 15 is information in which the occupant's physique, seating position, posture, and seat belt winding amount are associated with each other.

  The information (a1, a2, etc.) indicating the physique in the occupant corresponding take-up amount information 15 is information indicating, for example, the occupant's sitting height and the occupant's body type (for example, lean, standard, medium, thick, etc.). The information (b1, b2, etc.) indicating the occupant's seating position in the occupant corresponding winding amount information 15 is, for example, the seat surface front position, the seat surface appropriate position, the seat surface right position, the seat surface left position, etc. It is the information which shows the position of the passenger | crew in.

  The information (c1, c2, etc.) indicating the posture in the occupant corresponding winding amount information 15 is information indicating the inclination of the upper body of the occupant, for example, forward tilt, standard, rearward tilt, and the like. The information (d1, d2, etc.) indicating the winding amount in the occupant corresponding winding amount information 15 is information indicating the length of the seat belt to be wound by the seat belt module 22, for example.

  Each piece of information (a1, a2, etc.) indicating a different physique is associated with a plurality of pieces of information (b1, b2, etc.) indicating different seating positions. Also, information (c1, c2, etc.) indicating different postures is associated with a plurality of information (b1, b2, etc.) indicating different seating positions. Further, information (d1, d2, etc.) indicating the amount of winding is associated with information (c1, c2, etc.) indicating different postures.

  The pre-collision control unit 12 selects a winding amount that matches the physique, seating position, and posture of the occupant determined based on the measurement result by the three-dimensional sensor 32 from the occupant corresponding winding amount information 15, and the seat belt module 22 It is determined as the amount of the seat belt to be wound. Then, the pre-collision control unit 12 outputs a control signal for causing the seat belt to be retracted to the seat belt module 22 until the determined retract amount is reached.

  Accordingly, the pre-collision control unit 12 can appropriately protect the occupant by the occupant protection device 2. In addition, since the pre-collision control unit 12 does not operate the seat belt module 22 when another vehicle approaching the host vehicle 100 is in an automatic operation with a low possibility of collision, passenger comfort is impaired. This can be suppressed. An example of operation control for the seat module 21 and the seat belt module 22 by the pre-collision control unit 12 will be described later with reference to FIGS.

  Further, the pre-collision control unit 12 performs failure determination of the three-dimensional sensor 32 at a predetermined timing. For example, the pre-collision control unit 12 determines the failure of the three-dimensional sensor 32 when the host vehicle 100 is powered on. Specifically, when performing the failure determination, the pre-collision control unit 12 causes the three-dimensional sensor 32 to measure the three-dimensional shape of the occupant, and compares the actual measurement value obtained by the measurement with a preset reference value. To do.

  At this time, for example, the pre-collision control unit 12 causes the three-dimensional sensor 32 to measure the distance from the three-dimensional sensor 32 to the occupant's face, and compares the distance obtained by the measurement with a reference value. The reference value here is, for example, the distance from the three-dimensional sensor 32 to 20 cm before the headrest of the seat.

  The pre-collision control unit 12 determines that the three-dimensional sensor 32 has failed when the difference between the actual measurement value and the reference value exceeds a predetermined threshold (for example, 50 cm). When the approach of another vehicle during manual operation is detected during a failure of the three-dimensional sensor 32, the pre-collision control unit 12 causes an occupant with a standard physique to sit in an appropriate position with an appropriate posture on the seat. Assuming that the seat belt is wound, the seat belt winding amount of the seat belt module 22 is determined.

  As a result, the pre-collision control unit 12 can ensure the minimum safety for the occupant by the pretensioner 23 and the airbag 24 even when the three-dimensional sensor is out of order.

  In addition, when the pre-collision control unit 12 determines that the three-dimensional sensor 32 is out of order, the rotational position included in the seat appropriate mode information 16 includes the seat orientation and the reclining angle regardless of whether or not another vehicle is in proximity. And reclining angle.

  In addition, when operating the seat module 21 and the seat belt module 22 during the failure of the three-dimensional sensor 32, the pre-collision control unit 12 issues a warning to the user in advance by, for example, a warning lamp.

  Returning to FIG. 2, when information indicating that the collision of the host vehicle 100 is detected from the collision sensor 31 is input from the collision sensor 31, the control unit 13 activates the pretensioner 23 and restrains the occupant to the seat by the seat belt. Then, the airbag 24 is operated to inflate the bag body of the airbag 24.

  Next, an example of operation control by the pre-collision control unit 12 according to the embodiment will be described with reference to FIGS. 4-7 is explanatory drawing which shows an example of the operation control by the pre-collision control part 12 which concerns on embodiment. In FIG. 4, the occupant is not shown in order to clarify the change in the seat mode, but in the description, it is assumed that the occupant is actually seated in all seats.

  As shown in FIG. 4 (a), the occupant rotates, for example, the driver's seat 41 toward the center of the passenger compartment or the passenger's seat 42 backward while the host vehicle 100 is in automatic operation. It may be rotated or the backrest may be reclined.

  In this state, when the host vehicle 100 collides and the airbag 24 is activated, the bag body of the airbag 24 is inflated between the headrest and the dashboard of the driver seat 41 and the passenger seat 42, and the driver seat 41. The passenger in the passenger seat 42 receives a shock from the back of the head and is dangerous.

  Therefore, the pre-collision control unit 12 controls the seat module 21 in preparation for a collision when another vehicle approaching manual operation approaches in the state shown in FIG. As shown in (b), the driver's seat 41 and the passenger seat 42 are rotated to face forward.

  Further, the pre-collision control unit 12 controls the seat module 21 to raise the back of the passenger seat 42. As a result, the pre-collision control unit 12 can appropriately exert the occupant protection function of the pretensioner 23 and the airbag 24.

  Further, the pre-collision control unit 12 detects the approach of another vehicle during manual driving, and after the driver's seat 41 and the passenger seat 42 are in the state shown in FIG. When there is no collision, control is performed to return the driver seat 41 and the passenger seat 42 to the state shown in FIG.

  However, the pre-collision control unit 12 places the driver's seat 41 and the passenger seat 42 in the state shown in FIG. The state shown by (b) in FIG. 4 is maintained without performing the returning control. Thereby, the control part 12 before a collision can prevent that a passenger | crew's comfort is impaired by suppressing changing the aspect of a seat frequently.

  Further, as shown in FIG. 5A, the occupant 51 may be seated, for example, in a forward leaning posture while the host vehicle 100 is in automatic operation. In this state, if the host vehicle 100 collides and the pretensioner 23 is activated and the seat belt 6 is wound up instantaneously, the occupant 51 is hit against the backrest or the headrest, which is dangerous.

  Therefore, the pre-collision control unit 12 controls the seat belt module 22 in preparation for a collision when another vehicle approaching manual operation approaches in the state shown in FIG. (B), the seat belt 6 is gently wound up to restrain the occupant 51 safely. Accordingly, the pre-collision control unit 12 can appropriately exhibit the passenger protection function of the pretensioner 23.

  However, the pre-collision control unit 12 performs control to return the seat belt 6 to the state shown in FIG. 5A when a plurality of other vehicles in manual driving approach the host vehicle 100 sequentially. First, the state shown in FIG. 5B is maintained. Thereby, the control part 12 before a collision can prevent that a passenger | crew's comfort is impaired by suppressing that the winding amount of the seatbelt 6 is changed frequently.

  Further, as shown in FIG. 6A, for example, when an occupant 52 having a large physique is seated on the driver's seat 41, a standard occupant is seated (for example, FIG. 5B). The amount of feeding of the seat belt 6 is larger than that shown in FIG.

  In this state, when the host vehicle 100 collides and the pretensioner 23 is activated, the seat belt 6 that is wound up until the occupant 52 is restrained more safely than when the standard occupant is seated. Since the amount of winding becomes large and it takes time to wind the seat belt 6, it is dangerous.

  Therefore, the pre-collision control unit 12 controls the seat belt module 22 in preparation for a collision when another vehicle approaching manual operation approaches in the state shown in FIG. As shown in (b), the seat belt 6 is gently wound up to restrain the occupant 52 safely. Accordingly, the pre-collision control unit 12 can appropriately exhibit the passenger protection function of the pretensioner 23.

  However, the pre-collision control unit 12 performs control to return the seat belt 6 to the state shown in FIG. 6A when a plurality of other vehicles in manual operation approach the host vehicle 100 sequentially. First, the state shown in FIG. 6B is maintained. Thereby, the control part 12 before a collision can prevent that a passenger | crew's comfort is impaired by suppressing that the winding amount of the seatbelt 6 is changed frequently.

  Further, as shown in FIG. 7A, the occupant 53 may be seated at a position shifted laterally from the center of the driver seat 41, for example, while the host vehicle 100 is in automatic driving. In this state, if the host vehicle 100 collides, the pretensioner 23 operates and the seat belt 6 is wound up instantaneously, the occupant 53 is instantaneously and forcibly pulled back to the center of the driver's seat 41, resulting in danger. It is.

  Therefore, the pre-collision control unit 12 controls the seat belt module 22 in preparation for a collision when another vehicle approaching manual operation approaches in the state shown in FIG. (B), the seat belt 6 is gently wound up to restrain the passenger 53 safely. Accordingly, the pre-collision control unit 12 can appropriately exhibit the passenger protection function of the pretensioner 23.

  However, the pre-collision control unit 12 performs control to return the seat belt 6 to the state shown in FIG. 7A when a plurality of other vehicles in manual operation approach the host vehicle 100 sequentially. First, the state shown in FIG. 7B is maintained. Thereby, the control part 12 before a collision can prevent that a passenger | crew's comfort is impaired by suppressing that the winding amount of the seatbelt 6 is changed frequently.

  Next, processing executed by the control device 1 according to the embodiment will be described with reference to FIG. FIG. 8 is a flowchart illustrating processing executed by the control device 1 according to the embodiment. Here, the process executed by the control device 1 after the host vehicle 100 is turned on and the failure determination of the three-dimensional sensor 32 is completed will be described.

  As illustrated in FIG. 8, when the failure determination of the three-dimensional sensor 32 is completed, the control device 1 determines whether another vehicle approaches the host vehicle 100 (Step S101). And the control apparatus 1 complete | finishes a process, when it determines with another vehicle not approaching (step S101, No).

  On the other hand, when it determines with the other vehicle approaching (step S101, Yes), the control apparatus 1 determines whether the approaching other vehicle is carrying out manual driving | operation (step S102). And the control apparatus 1 complete | finishes a process, when it determines with the other vehicle not being in manual driving (it is driving automatically) (step S102, No).

  On the other hand, if it is determined that the other vehicle is being manually operated (step S102, Yes), the control device 1 determines the state of the occupant and the seat (step S103). Specifically, the control device 1 determines the orientation of the seating surface of each seat, the reclining angle of the backrest, the presence or absence of an occupant, the physique, the sitting position, and the posture.

  Thereafter, the control device 1 performs seat belt module control (step S104). Specifically, the control device 1 outputs a control signal for winding up the seat belt to the seat belt module 22 until the winding amount corresponds to the occupant's physique, seating position, and posture.

  At this time, when it is determined in advance that the three-dimensional sensor 32 is out of order, the control device 1 has an occupant with a standard physique seated at an appropriate position in an appropriate posture on the seat. Then, the amount of seat belt retracted by the seat belt module 22 is determined. Then, the control device 1 outputs a control signal for winding the seat belt to the seat belt module 22 until the determined winding amount is reached.

  Subsequently, the control device 1 performs sheet module control (step S105). Specifically, the control device 1 controls the seat rotation position and the reclining angle until the rotation position and the reclining angle of each seat coincide with the rotation position and the reclining angle included in the seat appropriateness mode information 16. Is output to the sheet module 21.

  Thereafter, the control device 1 determines whether or not another vehicle is separated from the host vehicle 100 (step S106). Then, when it is determined that the other vehicle is not separated (No in Step S106), the control device 1 repeats the determination in Step S106 until the other vehicle is separated.

  On the other hand, when it determines with the other vehicle separating (step S106, Yes), the control apparatus 1 performs seat * seatbelt return control (step S107), and complete | finishes a process. Specifically, the control device 1 maintains the state of the seat and the seat belt when a plurality of other vehicles in manual operation approach the host vehicle 100 in succession.

  Then, when there is no other manually operated vehicle approaching the host vehicle 100, the control device 1 returns the state of the seat and the seat belt to the state at the time of step S102 and ends the process.

  Although not shown here, the control device 1 determines whether or not a signal indicating that a collision of the host vehicle 100 has been detected from the collision sensor 31 in parallel with the processing shown in FIG. Perform the monitoring process. And the control apparatus 1 performs operation control which operates the pretensioner 23 and the airbag 24, when the signal which shows having detected the collision of the own vehicle 100 from the collision sensor 31 is input.

  In the above-described embodiment, when another vehicle that is being manually operated approaches the own vehicle 100 that is automatically driven, the pre-collision control unit 12 optimizes the seat mode and the seat belt winding amount in advance. Although the case has been described, the same control may be performed while the host vehicle 100 is in manual operation.

  As a result, the control device 1 can be applied to the occupant protection device even when the host vehicle 100 is in manual operation, the driver is in an appropriate occupant posture, and occupants other than the driver are free occupant postures. The passenger protection function can be exhibited appropriately.

  As described above, the control device according to the embodiment includes an identification unit that identifies whether another vehicle approaching the host vehicle is in automatic driving or manual driving, and an occupant protection device provided in the host vehicle. And a control unit that performs operation control in accordance with the identification result of. Thereby, the control device can cause the occupant protection device to sufficiently exhibit the occupant protection function while suppressing the passenger comfort from being impaired.

  The occupant protection device according to the embodiment includes a seat module that changes the aspect of the seat, a seat belt pretensioner, and an airbag. Then, when the identification unit identifies that the other vehicle is being manually operated, the control unit changes operation of the seat until the occupant can be protected by operating the pretensioner and the airbag. To the sheet module.

  Accordingly, the control device can allow a free occupant posture to the occupant when the approaching other vehicle is in an automatic operation with a low risk of collision. On the other hand, when the approaching other vehicle is in a manual operation where there is a risk of collision, the control device appropriately protects the occupant by operating the pretensioner and the airbag by optimizing the aspect of the seat. Can do.

  Moreover, the control part which concerns on embodiment performs operation control which changes the rotation position of the seat surface in a seat with respect to a seat module. As a result, the control device properly protects the occupant by operating the pretensioner and airbag by optimizing the rotational position of the seat surface when other approaching vehicles are in manual operation where there is a risk of collision. Can be made.

  Moreover, the control part which concerns on embodiment performs operation control which changes the angle of the backrest in a seat with respect to a seat module. As a result, the control device can appropriately protect the occupant by operating the pretensioner and the airbag by optimizing the angle of the backrest when the approaching other vehicle is in a manual operation where there is a risk of collision. Can do.

  The occupant protection device according to the embodiment further includes a seat belt module that winds and unwinds the seat belt. Then, when the discriminating unit identifies that the other vehicle is in manual operation, the control unit performs the winding of the seat belt until a winding amount that enables protection of the occupant by the operation of the pretensioner and the airbag is reached. The operation control is performed on the seat belt module.

  Accordingly, the control device can allow a free occupant posture to the occupant when the approaching other vehicle is in an automatic operation with a low risk of collision. On the other hand, when the other vehicle that is approaching is in a manual operation where there is a risk of collision, the control device optimizes the amount of seat belt retracted, thereby appropriately occupant by operating the pretensioner and the airbag. Can be protected.

  In addition, the control unit according to the embodiment performs at least one determination among the position, physique, and posture of the occupant based on the measurement value input from the three-dimensional sensor that measures the three-dimensional shape of the occupant. The seat belt winding amount is determined according to the result.

  As a result, the control device optimizes the amount of seat belt retracted according to the occupant's body when the approaching other vehicle is in a manual operation where there is a risk of a collision. The occupant can be properly protected by the operation of.

  In addition, the control unit according to the embodiment determines whether or not there is a failure in the three-dimensional sensor based on a difference between a preset reference value and the measured value of the occupant by the three-dimensional sensor, and determines that the three-dimensional sensor has a failure. When determining, the amount of seat belt retracted is determined assuming that a standard occupant is seated. Thereby, even if it is a case where a three-dimensional sensor fails, the control apparatus can ensure minimum safety | security with respect to a passenger | crew with a pretensioner and an airbag.

  Moreover, the control part which concerns on embodiment performs operation control according to the identification result by an identification part with respect to a passenger | crew protection device, when the own vehicle is driving automatically. Thus, the control device can appropriately protect the occupant with the pretensioner and the airbag even when all occupants including the driver are in a free occupant posture.

  In addition, it is desirable that the control device optimizes the seat mode and the seat belt winding amount so that the occupant protection device can maximize the occupant protection function when another vehicle in manual operation approaches. It is not always necessary to optimize.

  In other words, when the other vehicle in manual operation approaches, the control device allows the occupant protection device and the seat belt winding so that the occupant protection device can ensure the minimum safety for the occupant. The structure which controls quantity may be sufficient.

  In addition, the control device is in manual operation when the approaching other vehicle is in automatic operation, but the behavior of the other vehicle is unnatural (in the case of meandering operation or driving exceeding legal speed). The configuration may be such that the same operation control as when another vehicle approaches is performed on the occupant protection device. As a result, the control device can appropriately protect the occupant with the occupant protection device regardless of whether the approaching other vehicle is in automatic driving or manual driving.

  In addition, when the other vehicle in the manual operation approaches, the control device, in addition to the seat mode and the seat belt winding amount, for example, other component modes related to the posture of the occupant, such as the headrest of the seat. The structure which optimizes may be sufficient.

  In the above-described embodiment, the control device controls the operation of the seat module and the seat belt module so that the occupant can be protected by the operation of the pretensioner of the seat belt of the own vehicle and the airbag of the own vehicle. This is just an example. The control device according to the embodiment may have the following configuration.

  For example, the control device can protect an occupant by operating at least one of a pretensioner of a seat belt of the host vehicle and an airbag of the host vehicle when another vehicle approaching the host vehicle is in manual operation. The configuration may be such that operation control of the seat module is performed.

  Further, the control device can protect the occupant by operating at least one of the pretensioner of the seat belt of the host vehicle and the airbag of the host vehicle when another vehicle approaching the host vehicle is in manual operation. The configuration may be such that the operation of the seat belt module is controlled.

  In addition, when the other vehicle approaches the host vehicle, the control device seats the seat so that the passenger can be protected by operating at least one of the pretensioner of the seat belt of the host vehicle and the airbag of the host vehicle. The structure which rotates a surface may be sufficient. Even with such a configuration, the control device can cause the occupant protection device to appropriately exhibit the occupant protection function while suppressing the passenger comfort from being impaired.

  Further effects and modifications can be easily derived by those skilled in the art. Thus, the broader aspects of the present invention are not limited to the specific details and representative embodiments shown and described above. Accordingly, various modifications can be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents.

DESCRIPTION OF SYMBOLS 1 Control apparatus 2 Passenger protection apparatus 11 Identification part 12 Pre-collision control part 13 Control part 14 at the time of collision 14 Memory | storage part 15 Passenger corresponding winding amount information 16 Seat appropriate mode information 21 Seat module 22 Seat belt module 23 Pretensioner 24 Airbag 31 Collision Sensor 32 Three-dimensional sensor 33 Seat orientation sensor 34 Seat angle sensor 35 Communication device 36 Radar 41 Driver's seat 42 Passenger's seat 43 Rear seat 51, 52, 53 Crew 6 Seat belt 100 Own vehicle 101 Automatic driving device

Claims (11)

An identification unit for identifying whether another vehicle approaching the host vehicle is operating automatically or manually;
A control device for an occupant protection device, comprising: a control unit that performs operation control according to the identification result by the identification unit with respect to the occupant protection device provided in the host vehicle. The occupant protection device is
Including a seat module that changes the aspect of the seat;
The controller is
When the other vehicle is identified as being manually operated by the identification unit, the passenger can be protected by operating at least one of the pretensioner of the seat belt of the host vehicle and the airbag of the host vehicle. The control device for an occupant protection device according to claim 1, wherein operation control for changing the seat mode is performed on the seat module. The controller is
The control device for an occupant protection device according to claim 2, wherein operation control for changing a rotational position of a seating surface in the seat is performed on the seat module. The controller is
The control device for an occupant protection device according to claim 2 or 3, wherein operation control for changing a backrest angle in the seat is performed on the seat module. The occupant protection device is
A seat belt module for winding and unwinding the seat belt;
The controller is
When the other vehicle is identified as being manually operated by the identification unit, the seat belt is involved until the take-up amount is such that occupants can be protected by operating at least one of the pretensioner and the airbag. The control device for the occupant protection device according to any one of claims 2 to 4, wherein the operation control for performing the control is performed on the seat belt module. The controller is
Based on the measurement value input from the three-dimensional sensor that measures the three-dimensional shape of the occupant, at least one of the position, physique, and posture of the occupant is determined, and the seat belt is determined according to the determination result. The occupant protection device control device according to claim 5, wherein the winding amount is determined. The controller is
When determining whether or not there is a failure in the three-dimensional sensor based on the difference between a preset reference value and the measured value of the occupant by the three-dimensional sensor, The control device for an occupant protection device according to claim 6, wherein a winding amount of the seat belt is determined on the assumption that an occupant is seated. The controller is
The occupant protection according to any one of claims 1 to 7, wherein during the automatic driving of the host vehicle, the occupant protection device is subjected to operation control according to an identification result by the identification unit. Control device for the device. An occupant protection device provided in the host vehicle;
A control unit that includes an identification unit that identifies whether another vehicle approaching the host vehicle is in automatic driving or manual driving, and a control unit that controls the occupant protection device according to the identification result of the identification unit. An occupant protection system comprising: a device. An identification step for identifying whether another vehicle approaching the host vehicle is operating automatically or manually,
A control step of performing operation control according to the identification result of the identification step with respect to the occupant protection device provided in the host vehicle. When another vehicle approaches the host vehicle, the seat surface of the seat is moved until the passenger can be protected by operating at least one of the pretensioner of the seat belt of the host vehicle and the airbag of the host vehicle. A control device for an occupant protection device, comprising: a control unit that performs operation control for rotation.

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