JP2010184526A - On-vehicle equipment controller - Google Patents

Abstract

A vehicle-mounted device control device capable of avoiding an occupant or a loaded luggage from contacting a vehicle inner wall or interior when adjusting a seat.
A vehicle-mounted device control apparatus 1 that controls the position of a seat 33 of a vehicle 3 includes a 3D video apparatus 31 that detects a three-dimensional position of a part of the occupant's body, and an occupant based on the three-dimensional position. A distance detection unit 22 that acquires a distance L between a part of the body of the vehicle and a vehicle interior or an inner wall of the vehicle, and a seat control unit that controls the position of the seat so that the distance L acquired by the distance detection unit 22 is not less than a predetermined distance 23, it is possible to avoid contact between the occupant's body and the vehicle interior or inner wall.
[Selection] Figure 1

Description

  The present invention relates to a control device for in-vehicle equipment.

  Conventionally, what controls the position of a sheet is known as a control device of in-vehicle equipment (for example, refer to patent documents 1). The device described in Patent Document 1 automatically adjusts the position of a seat so that an eye point and a driving posture corresponding to a posture condition input by a driver are obtained.

Japanese Patent Laid-Open No. 2005-271771

  However, in the conventional apparatus, when the position of the seat is automatically adjusted, the occupant's body may come into contact with the inner wall or interior of the vehicle depending on the physique of the vehicle occupant. For example, when the vertical position of the seat is automatically adjusted, the head of an occupant seated on the seat may come into contact with the ceiling inside the vehicle. Further, when the reclining position of the seat is automatically adjusted, the seat may come into contact with an occupant seated behind the seat or a load loaded behind the seat.

  Therefore, the present invention has been made to solve such a technical problem, and is capable of avoiding that an occupant or a loaded luggage comes into contact with the vehicle inner wall or the interior when the seat is adjusted. An object is to provide a control device.

  That is, the vehicle-mounted device control device according to the present invention is a vehicle-mounted device control device that controls the position of a vehicle seat, and includes position information detection means for detecting a three-dimensional position of a part of a passenger's body, and a three-dimensional position. Distance acquisition means for acquiring a distance between a part of the occupant's body and the vehicle interior or vehicle inner wall, and seat position control means for controlling the position of the seat so that the distance acquired by the distance acquisition means is not less than a predetermined distance And comprising.

  The in-vehicle device control device according to the present invention detects a three-dimensional position of a part of the occupant's body by the position information detecting means, and based on the detected three-dimensional position, a part of the occupant's body and the interior or inner wall of the vehicle Can be acquired by the distance acquisition means, and the sheet position can be controlled by the sheet position control means so that the acquired distance does not become a predetermined distance or less. For this reason, it becomes possible to avoid a contact with a passenger | crew's body, a vehicle interior, or an inner wall.

  An in-vehicle device control device according to the present invention is an in-vehicle device control device that controls the position of a vehicle seat, and includes a position information detecting unit that detects a three-dimensional position of a load loaded on the vehicle, and a three-dimensional position. Distance acquisition means for acquiring the distance between the luggage and the vehicle interior or the vehicle inner wall based on the vehicle, and seat position control means for controlling the position of the seat so that the distance acquired by the distance acquisition means does not become a predetermined distance or less. Configured.

  The in-vehicle device control device according to the present invention detects the three-dimensional position of the load loaded on the vehicle by the position information detecting means, and obtains the distance between the load and the interior or inner wall of the vehicle based on the detected three-dimensional position. The sheet position can be controlled by the sheet position control means so that the acquired distance is not less than a predetermined distance. For this reason, it is possible to avoid contact between the luggage and the vehicle interior or the inner wall.

  In the above-described in-vehicle device control apparatus, the seat position control unit may control at least one of the up / down motion, the front / rear motion, and the reclining motion of the seat.

  The sheet position control means preferably performs position control by adjusting the speed of the sheet so that the sheet is decelerated as the distance acquired by the distance acquisition means becomes shorter. By comprising in this way, it can be made to recognize that the passenger | crew who seats on the said seat is likely to contact a vehicle interior or a vehicle inner wall.

  According to the present invention, it is possible to avoid that an occupant or a loaded luggage contacts the vehicle inner wall or the interior when adjusting the seat.

It is a block diagram which shows the structure outline | summary of a vehicle provided with the vehicle equipment control apparatus which concerns on embodiment. It is a schematic diagram for demonstrating the structure of the vehicle equipment control apparatus which concerns on embodiment. It is a flowchart for demonstrating operation | movement of the vehicle equipment control apparatus which concerns on embodiment. It is a flowchart for demonstrating operation | movement of the vehicle equipment control apparatus which concerns on embodiment. It is a graph which shows the distance dependence of seat seat speed. It is a schematic diagram for demonstrating operation | movement of the vehicle equipment control apparatus which concerns on another example.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and redundant description is omitted.

  The in-vehicle device control device according to the present embodiment is suitably employed in a vehicle that performs seat position control (seat position control), for example.

  Initially, it demonstrates from the outline | summary of a vehicle provided with the vehicle equipment control apparatus which concerns on this embodiment. FIG. 1 is a block diagram showing a configuration outline of a vehicle including an in-vehicle device control device 1 according to the present embodiment, and FIG. 2 is a schematic diagram showing a configuration of the in-vehicle device control device 1 according to the present embodiment. A vehicle 3 shown in FIG. 1 includes a seat adjustment unit 30, a 3D video device (position information detection means) 31, an ECU (Electronic Control Unit) 2, and a seat drive device 32. The ECU 2 is a computer of an electronically controlled automobile device, and includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a memory such as a RAM (Random Access Memory), and an input / output interface.

  The seat adjustment unit 30 is an input unit that is operated by the occupant to move the position of the seat to a predetermined position. For example, it is provided around the seat cushion 33b of the seat seat 33, and is configured so that an occupant seated on the seat seat 33 can be adjusted. The seat adjustment unit 30 is configured so that, for example, the occupant can input a target movement amount or a target movement position in the vertical direction (H direction), the front-rear direction (X direction), or the reclining direction (Y direction). For example, it has an upward movement button, a downward movement button, a forward movement button, a backward movement button, a sheet tilt button, a sheet return button, etc., and has a function of inputting the ON state of each adjustment button as sheet adjustment information. ing. The sheet adjustment unit 30 has a function of outputting the input sheet adjustment information to the ECU 2.

  The 3D video apparatus 31 has a function of acquiring three-dimensional image information. For example, the 3D image device 31 is arranged around the roof 3a of the vehicle 3 and is seated on the seat seat 33 and the image of the roof 3a of the vehicle 3 It has a function to acquire information. For example, a 3D camera is used as the 3D video apparatus 31. The 3D video device 31 has a function of outputting the acquired image information to the ECU 2.

  The ECU 2 includes an attitude detection unit 21, a distance detection unit (distance acquisition unit) 22, and a seat control unit (sheet position control unit) 23.

  The posture detection unit 21 has a function of detecting the riding posture of the occupant based on the image information acquired by the 3D video device 31. The posture detection unit 21 detects a riding posture such as leaning forward while the occupant is seated or leaning against the seat back 33a of the seat 33 based on the image information. The posture detection unit 21 has a function of outputting the detected passenger posture information to the seat control unit 23.

  The distance detection unit 22 has a function of detecting the distance between the head that is a part of the occupant's body and the roof 3 a that is the inner wall of the vehicle 3 based on the image information acquired by the 3D video device 31. is doing. For example, the distance detection unit 22 determines the distance L between the occupant's head and the roof 3a based on the three-dimensional position information (three-dimensional coordinate information) of the occupant's head and the three-dimensional position information of the roof 3a. It has a function to calculate. The distance detection unit 22 has a function of outputting the detected distance L to the sheet control unit 23.

  The seat control unit 23 has a function of outputting a drive signal for controlling the position and moving speed of the seat 33. The seat control unit 23 generates a drive signal based on the seat adjustment information input by the seat adjustment device, the riding posture information detected by the posture detection unit 21, and the distance L detected by the distance detection unit 22. It has a function of outputting the generated drive signal to the sheet drive device 32.

  The seat drive device 32 is an actuator that drives the seat 33 based on the drive signal generated by the seat control unit 23. The seat drive device 32 moves, for example, the seat cushion 33b and the seat back 33a in the vertical direction (H direction) and the front-back direction (X direction) based on the drive signal, or the seat back 33a in the reclining direction (Y direction). And has a function to move.

  The in-vehicle device control apparatus 1 includes the 3D video apparatus 31, the attitude detection unit 21, the distance detection unit 22, and the seat control unit 23 described above.

  Next, the operation of the in-vehicle device control apparatus 1 according to this embodiment will be described. 3 and 4 are flowcharts showing the operation of the in-vehicle device control apparatus 1 according to the present embodiment. The control process shown in FIG. 3 is repeatedly executed at a predetermined interval from the timing when the key is set to the ACC position, for example. In consideration of ease of explanation, a case where the passenger adjusts the seat 33 in the vertical direction will be described.

  When the control process shown in FIG. 3 is started, the process starts from the seating detection process (S10). The process of S10 is a process executed by the ECU 2 to detect the seating of the occupant. For example, the ECU 2 determines whether the occupant is seated based on image information input from the 3D video apparatus 31. Alternatively, the seating of an occupant may be detected using a seat sensor (not shown). When the process of S10 ends, the process proceeds to a distance detection process (S12).

  The process of S12 is a process which the distance detection part 22 performs, and starts the detection of the distance L between a passenger | crew's head and the roof 3a. For example, the distance detection unit 22 calculates the distance L by acquiring the three-dimensional position information of the occupant's head and the roof 3a from the 3D video device 31 at a predetermined interval. When the process of S12 ends, the process proceeds to a sheet adjustment determination process (S14).

  The process of S14 is a process executed by the ECU 2 to determine whether or not the occupant has adjusted the seat. For example, the ECU 2 determines whether or not the sheet adjustment information is input from the sheet adjustment unit 30. If the sheet adjustment information is not input from the sheet adjustment unit 30, the control process shown in FIG. 3 ends without adjusting the sheet. On the other hand, when the sheet adjustment information is input from the seat adjustment unit 30, it is determined that the occupant has adjusted the seat, and the process proceeds to the seat position control process (S16).

  The process of S16 is a process for controlling the position of the seat 33. The process of S16 will be described with reference to FIG. As shown in FIG. 4, the sheet position control process starts with an attitude determination process (S20).

  The process of S20 is a process executed by the posture detection unit 21 and the seat control unit 23 to determine whether or not the occupant's posture is a normal posture. The posture detection unit 21 detects the posture of the occupant based on the three-dimensional image information acquired from the 3D video device 31. For example, when the head is protruding forward, it is detected that the head is leaning forward. Further, if the upper position of the seat back 33a and the position of the head are substantially the same, it is detected that the occupant is leaning against the seat back 33a. Then, the seat control unit 23 determines whether or not the riding posture detected by the posture detection unit 21 is a normal posture. For example, the seat control unit 23 records the normal posture information of the occupant in advance in the memory of the ECU. Then, the detected riding posture information is compared with the recorded normal posture information to determine whether or not the posture of the occupant is a normal posture. As the normal posture information, for example, if the driver is a driver's seat passenger, the driving posture of the passenger is used. Further, for example, if the passenger is a passenger seat or a rear seat, a posture leaning against the seat back 33a is used. In the process of S20, when it is determined that the occupant's posture is a normal posture, the process proceeds to an effective distance calculation process (S24). On the other hand, in the process of S20, when it is determined that the occupant's posture is not a normal posture, the process proceeds to a difference calculation process (S22).

  The process of S22 is a process executed by the seat control unit 23 to compare the riding posture information with the normal posture information and calculate the difference. For example, the difference between the three-dimensional position information of the occupant's head in the riding posture information and the three-dimensional position information of the occupant's head in the normal posture information is calculated. More specifically, the three-dimensional position coordinate information of the occupant's head in the riding posture information is subtracted from the three-dimensional position coordinate information of the occupant's head in the normal posture information. When the process of S22 ends, the process proceeds to an effective distance calculation process (S24).

The process of S24 is a process executed by the seat control unit 23 to calculate an effective distance (effective distance L _R ) between the head of the occupant and the roof 3a. The effective distance _LR is a distance between the head of the occupant and the roof 3a when the occupant is in a normal posture at the current seat position. For example, when the seat control unit 23 determines that the posture is the normal posture in the process of S20, the distance L calculated by acquiring the three-dimensional position information of the head of the occupant and the roof 3a from the 3D video device 31 is effectively used. The distance _{LR is} assumed. On the other hand, if the seat control unit 23 determines in the process of S20 that the posture is not the normal posture, the seat control unit 23 acquires the three-dimensional position information of the occupant's head and the roof 3a from the 3D video apparatus 31 and calculates the distance L from S22. the effective distance L _R by subtracting the difference calculated by the processing. When the processing of S24 is completed, the routine proceeds to stop area determination processing (S26).

The process of S26 is a process executed by the sheet control unit 23 to determine whether or not the effective distance _LR is within the stop area. Seat control unit 23 determines that if the effective distance L _R is equal to or less than a predetermined distance L _0, it is determined that the predetermined distance L ₀ or less is in the stopping area. The predetermined distance L ₀ is may be set in advance, including calculation error, or the like. In the processing of S26, if the effective distance L _R is equal to or less than the predetermined distance L _0, i.e., if the effective distance L _R is determined to be within the stop region, the process proceeds to stop processing (S38).

  The process of S38 is a process executed by the seat control unit 23 to place the seat seat 33 in a stopped state. For example, the sheet control unit 23 performs processing that does not output a drive signal to the sheet drive device 32. That is, the seat 33 does not move even when the occupant turns the seat adjustment unit 30 on. When the process of S38 ends, the sheet position control process shown in FIG. 4 ends.

On the other hand, in the processing of S26, if the effective distance L _R is determined not to be less than the predetermined distance L _0, i.e., if the effective distance L _R is determined not to be within the stop region, the process proceeds to the deceleration region determination processing (S28 ).

The process of S28 is a process executed by the seat control unit 23 to determine whether or not the effective distance _LR is within the deceleration region. Seat control unit 23 determines the effective distance L _R is equal to or less than a predetermined distance L _1, and when it is determined that the predetermined distance L ₁ following a deceleration region. The predetermined distance L ₁ may be set in advance, including calculation error, or the like. In the processing of S28, if the effective distance L _R is not less than the predetermined distance L _1, i.e., if the effective distance L _R is not decelerating region, the process proceeds to the normal speed setting processing (S30).

Processing step S30, the seat control unit 23 executes, sets the normal sheet moving speed V ₁ to the sheet travel speed. When the process of S30 ends, the process proceeds to a movement process (S34).

On the other hand, in the process of S28, if the effective distance _{L R} is equal to or less than the predetermined distance _{L 1,} i.e., if the effective distance _{L R} is decelerating region, the process proceeds to deceleration processing (S32). Processing of step S32, the seat control unit 23 executes, by decelerating the normal sheet moving speed V ₁ is set as the sheet traveling speed. The deceleration of the sheet moving speed will be described with reference to FIG. FIG. 5 is a graph showing the execution distance dependency of the sheet moving speed. As shown in FIG. 5, when the effective distance L _R is equal to or less than the predetermined distance L _1, based on the normal speed V _1, set such as sheet moving speed effective distance L _R becomes shorter decreases. When the process of S32 is completed, the process proceeds to the movement process (S34).

  The process of S34 is a process that is executed by the seat control unit 23 and the seat driving device 32 and moves the seat 33 at the seat moving speed set in the process of S30 or S32. For example, the sheet control unit 23 outputs a drive signal for moving at a predetermined distance (or a predetermined time) at the sheet moving speed set in the process of S30 or S32 to the sheet driving device 32. The seat drive device 32 moves the seat 33 according to the drive signal. When the process of S34 ends, the process proceeds to an adjustment end determination process (S36).

  The process of S36 is a process that is executed by the seat control unit 23 and determines whether or not the passenger's seat adjustment is completed. For example, the sheet control unit 23 determines whether or not the adjustment button of the sheet adjustment unit 30 is in the ON state based on the sheet adjustment information. In the process of S36, when it is determined that the adjustment button is still in the ON state, the process shifts again to the attitude determination process (S20). Thereby, the processing of S20 to S34 is repeatedly executed until the adjustment button is turned off. If it is determined in step S36 that the adjustment button is not in the ON state, the sheet position control process shown in FIG. 4 is terminated.

  When the sheet position control process shown in FIG. 4 ends, the process returns to S16 in FIG. 3 and the control process shown in FIG. 3 ends.

  The control process shown in FIGS. By executing the control process shown in FIGS. 3 and 4, the seat 33 can be moved without bringing the head of the passenger into contact with the roof 3a.

As described above, according to the in-vehicle device control device 1 according to the present embodiment, a 3D position of a part of the occupant's body is detected by the 3D video device 31, and the occupant's head is based on the detected 3D position. and obtains the distance L between the roof 3a of the vehicle 3 by the distance detection unit 22 calculates the effective distance L _R based on the distance L, the effective distance L _R is the predetermined distance L ₀ seat control unit 23 so as not follows Thus, the sheet position can be controlled. For this reason, it becomes possible to avoid contact with a passenger | crew's head and the roof 3a of the vehicle 3. FIG. Further, for performing the seat position control based on the effective distance L _R, it is possible even if the occupant has changed the posture controlling the distance between the occupant's head and the roof 3a of the vehicle 3.

Further, the seat control unit 23 adjusts the speed of the seat seat 33 so as to decelerate immediately before the effective distance _LR reaches the predetermined distance L ₀ and performs position control, so that the seat control section 23 is seated on the seat seat 33 to adjust the seat. It is possible to make an occupant recognize that he / she is likely to contact the roof 3a of the vehicle 3.

  In addition, embodiment mentioned above shows an example of the vehicle equipment control apparatus which concerns on this invention. The in-vehicle device control device according to the present invention is not limited to the in-vehicle device control device 1 according to the embodiment, and the in-vehicle device control device according to the embodiment is modified without changing the gist described in each claim. Or, it may be applied to other things.

  For example, in the above-described embodiment, the example in which the head of the occupant is controlled not to contact the roof 3a of the vehicle 3 has been described, but the present invention is not limited to this. For example, the inner wall of the vehicle 3 may be a side wall other than the roof 3a. Moreover, you may employ | adopt not only the position control of the seat of the up-down direction (H direction) shown in the present Example but position control of the front-back direction (X direction) or a reclining direction (Y direction). FIG. 6 shows an outline of seat position control in the reclining direction (Y direction). As shown in FIG. 6, when the occupant of the front seat tilts the seat back 33 a, there may be a case where it comes into contact with a part of the occupant's body (for example, head or foot) of the rear seat. That is, the vehicle interior (here, the seat 33) and the occupant's body in the rear seat may come into contact with each other. For this reason, the distance between the seat back 33a and the occupant of the rear seat is acquired by the 3D video apparatus 31, and the seat position is controlled in the same manner as the control described in the embodiment, so that the occupant of the front seat holds the seat back 33a. Even if it is a case where it falls down, it can avoid contacting the seat 33 with the passenger | crew of a rear seat. The vehicle interior includes not only a seat seat but also a handle, an attached box, and the like.

  For example, when a load is loaded on the seat 33, the distance between the load and the roof 3a of the vehicle 3 is acquired by the 3D video device 31, and the seat position is controlled in the same manner as the control described in the embodiment. Also good. Thereby, it can control so that a load and the roof 3a of the vehicle 3 may not contact. Further, when a load is loaded on the rear seat, the distance between the seat back 33a and the load on the rear seat is acquired by the 3D video apparatus 31, and the seat position is controlled in the same manner as the control described in the embodiment. Also good. Thereby, it can control so that the seat 33 and the load of a rear seat may not contact.

  In the above-described embodiment, the example in which the sheet movement speed V is monotonously decreased in the deceleration area as illustrated in FIG. 5 has been described. However, the present invention is not limited to this, and the sheet movement speed V is in the deceleration area. It may be a decreasing function.

  In the above-described embodiment, an example in which the occupant seated on the seat seat operates the seat adjustment unit 30 is described. However, another occupant may operate the seat adjustment unit 30.

  In the above-described embodiment, the example using the 3D video apparatus 31 has been described. However, other position detection means such as a 2D image sensor or an infrared sensor may be used. The present invention can also be employed when moving the interior other than the seat 33.

  DESCRIPTION OF SYMBOLS 1 ... In-vehicle device control apparatus, 2 ... ECU, 3 ... Vehicle, 21 ... Attitude detection part, 22 ... Distance detection part (distance acquisition means), 23 ... Seat control part (sheet position control means), 30 ... Seat adjustment part, 31... 3D video device (position information detecting means), 32... Sheet driving device.

Claims (4)

An in-vehicle device control device that controls the position of a vehicle seat,
Position information detecting means for detecting a three-dimensional position of a part of the occupant's body;
Distance acquisition means for acquiring a distance between a part of the occupant's body and a vehicle interior or vehicle inner wall based on the three-dimensional position;
Sheet position control means for controlling the position of the sheet so that the distance acquired by the distance acquisition means does not become a predetermined distance or less;
A vehicle-mounted device control device comprising: An in-vehicle device control device that controls the position of a vehicle seat,
Position information detecting means for detecting a three-dimensional position of the load loaded on the vehicle;
Distance acquisition means for acquiring a distance between the luggage and a vehicle interior or a vehicle inner wall based on the three-dimensional position;
Sheet position control means for controlling the position of the sheet so that the distance acquired by the distance acquisition means does not become a predetermined distance or less;
A vehicle-mounted device control device comprising:   The in-vehicle device control device according to claim 1, wherein the seat position control unit controls at least one of an up / down operation, a front / rear operation, and a reclining operation of the seat.   The said sheet position control means adjusts the speed | rate of the said sheet | seat so that it may decelerate, so that the distance acquired by the said distance acquisition means becomes short, The position control is performed as described in any one of Claims 1-3 characterized by the above-mentioned. The in-vehicle device control device described.

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