JP2018034660A - Seat control device and seat control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely control movement of a seat.SOLUTION: A seat control device comprises: an object detection part for detecting whether or not an object is mounted on a seat which can be moved between a cabin and an outside of the cabin; a mode determination part for determining a mode for moving the seat to a first mode when it is detected that an object is mounted on a seat, and determining a mode to a second mode, in which the seat is moved at speed faster than speed for movement of the seat in the first mode, when it is detected that an object is not mounted on the seat; a movement control part for controlling movement of the seat on the basis of the determined mode; and an abnormality detection part for detecting presence/absence of abnormality on the vehicle on the basis of a result detected by the object detection part, in which the mode determination part does not switch a mode from the first mode to the second mode when abnormality is detected.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a seat control device and a seat control method.

  There is a seat control device that moves a seat between a passenger compartment and the exterior of a passenger compartment while the passenger is on the vehicle in order to make it easier for the passenger to get on and off the vehicle. When the occupant is seated on the seat, the seat control device will move the seat at a safe driving speed and drive operation so that the seating posture is not lost and the limbs of the occupant and the vehicle do not interfere with each other. Must be moved. On the other hand, when the occupant is not seated on the seat, the seat controller increases the seat moving speed or omits part of the seat driving operation in order to shorten the seat moving time and reduce power consumption. There is known a technique for reducing the amount of movement of the sheet (see, for example, Patent Document 1).

JP 2013-18341 A

  However, in the conventional technology, when the function of detecting whether or not the occupant is seated on the seat breaks, even if the occupant is actually seated, it is erroneously recognized as not being seated, and the occupant is not seated. Since the seat is moved at the moving speed and the driving operation in this case, the safety may be lowered.

  The present invention has been made in view of such circumstances, and provides a seat control device and a seat control method capable of safely controlling the movement of the seat.

  According to the first aspect of the present invention, there is provided an object detection unit (1021) for detecting whether or not an object is placed on a seat (40) movable between the vehicle interior and the exterior of the vehicle interior; If it is detected that the object is placed on the sheet, the mode for moving the sheet is determined as the first mode, and the object detection unit detects that the object is not placed on the sheet. Determining a mode for moving the sheet to a second mode for moving the sheet at a speed faster than the speed of movement of the sheet in the first mode; and the mode determining unit A movement control unit (104) that controls the movement of the seat based on the mode determined by the control unit, and a difference that detects whether there is an abnormality in the vehicle based on a result detected by the object detection unit. A detection unit (1022), and the mode determination unit does not switch from the first mode to the second mode when an abnormality is detected by the abnormality detection unit. 10).

  Invention of Claim 2 is the seat control apparatus of Claim 1, Comprising: The said movement control part is a state in which the said seat is moving from the said vehicle interior to the said vehicle interior in the said 2nd mode. When the abnormality detection unit detects that the detection result by the object detection unit is abnormal, the movement of the sheet is stopped.

  A third aspect of the present invention is the seat control apparatus according to the first or second aspect, wherein the movement control unit has the first mode when the mode for moving the sheet is the first mode. When the sheet is moved along the first movement locus associated with the first mode and the mode for moving the sheet is the second mode, the second associated with the second mode It is moved along the movement locus.

  Invention of Claim 4 is the seat control apparatus of Claim 3, Comprising: The said movement control part is a state in which the said seat is moving in the said 2nd mode from the said vehicle interior to the said vehicle interior. When the abnormality detection unit detects that the detection result by the object detection unit is abnormal, the sheet is moved along the second movement locus at a movement speed associated with the first mode. Is.

  The invention according to claim 5 is a case where the computer detects whether an object is placed on a seat movable between the vehicle interior and the exterior of the vehicle interior, and detects that the object is placed on the seat. The mode for moving the sheet is determined as the first mode, and when it is detected that the object is not placed on the sheet, the mode for moving the sheet is set to the sheet according to the first mode. The second mode in which the sheet is moved at a speed faster than the moving speed is determined, the movement of the sheet is controlled based on the determined mode, and whether or not an object is placed on the sheet is detected. The seat control method detects whether there is an abnormality in the vehicle based on the result, and does not switch from the first mode to the second mode when the abnormality is detected.

  According to the first and fifth aspects of the present invention, the movement of the seat can be controlled safely even if the function of detecting whether or not an occupant is seated on the seat has failed.

  According to the second aspect of the present invention, when the seat is moving in the mode when the occupant is not seated on the seat, the function of detecting whether the occupant is seated on the seat breaks down. Even when it is impossible to detect that the occupant is seated on the seat, the seat can be safely controlled by stopping the movement of the seat.

  According to the third aspect of the present invention, the movement time of the seat is shortened by making the movement locus of the seat different between when the occupant is seated on the seat and when the occupant is not seated on the seat. In addition, it is possible to reduce the power consumption required for moving the seat.

  According to the fourth aspect of the present invention, when the seat is moving in the mode when the occupant is not seated on the seat, the function of detecting whether the occupant is seated on the seat breaks down. Even if it becomes impossible to detect that the occupant is seated on the seat, the seat can be safely controlled by switching to the moving speed of the seat when the occupant is seated on the seat. it can.

It is the schematic which shows the outline | summary of the movement control of the sheet | seat 40 by the sheet | seat control apparatus 10 which concerns on the 1st Embodiment of this invention. It is the schematic which shows the outline | summary of the member which operates the movement of the sheet | seat 40 which is movement-controlled by the sheet | seat control apparatus 10 which concerns on the 1st Embodiment of this invention. It is the schematic which shows the outline | summary of the detection of the passenger | crew by the seat control apparatus 10 which concerns on the 1st Embodiment of this invention. It is a block diagram which shows the function structure of the sheet | seat control apparatus 10 which concerns on the 1st Embodiment of this invention. It is a flowchart which shows operation | movement of the sheet | seat control apparatus 10 which concerns on the 1st Embodiment of this invention. It is a flowchart which shows operation | movement of the sheet | seat control apparatus 10 which concerns on the 1st Embodiment of this invention. It is the schematic which shows the outline | summary of the movement control of the sheet | seat 40 by the sheet | seat control apparatus 10 which concerns on the 2nd Embodiment of this invention. It is a figure which shows the movement locus | trajectory of the movement of the sheet | seat 40 by the sheet | seat control apparatus 10 which concerns on the 2nd Embodiment of this invention.

  Hereinafter, an embodiment of a seat control device of the present invention will be described with reference to the drawings.

<First Embodiment>
FIG. 1 is a schematic diagram illustrating an outline of movement control of the sheet 40 by the sheet control apparatus 10 according to the first embodiment of the present invention.

  The seat 40 installed on the passenger seat side, which is the left side of the front seat of the vehicle 1, can move between the vehicle interior and the exterior of the vehicle 1. As shown in the drawing, the seat 40 is swung out from the vehicle interior of the vehicle 1 through the state from FIG. 1A to FIG. 1E in order. The seat 40 is stored in the vehicle interior of the vehicle 1 from the outside of the vehicle 1 through the state from FIG. 1E to the state of FIG. 1A in reverse order of the operation in the case of swinging. Is done. In FIG. 1, the occupant is not seated on the seat 40, but the occupant may be seated on the seat 40. By allowing the seat 40 of the vehicle 1 to move between the interior of the vehicle and the exterior of the vehicle, for example, it becomes easy for passengers such as disabled persons and disabled persons to get on and off the vehicle 1.

  Hereinafter, each state from the state of FIG. 1 (A) to the state of FIG. 1 (E) will be described, taking as an example the case where the sheet 40 is shaken out.

  First, the seat 40 is moved by a predetermined distance toward the rear of the vehicle 1 from the state of FIG. This is to prevent the seated passenger's feet from interfering with the front pillar or the like when the seat 40 rotates in the state shown in FIG. 1B. Next, as shown in FIG. 1B, the seat 40 starts to rotate counterclockwise, and the feet of the passenger sitting on the seat 40 are directed toward the outside of the passenger compartment.

  Next, as shown in FIG. 1C, the seat 40 again moves forward by a predetermined distance from the start of the counterclockwise rotation to the rotation of 90 degrees. This is an operation for allowing the rear portion of the seat 40 to move out of the passenger compartment.

  Next, as illustrated in FIG. 1D, the seat 40 moves to the front of the seat 40 (in the direction outside the passenger compartment) while the backrest of the seat 40 is tilted backward to the seat 40. The reason why the backrest is tilted backward is to prevent the seated passenger's head from interfering with the roof portion of the vehicle 1.

  Next, as shown in FIG. 1 (E), when the entire seating surface portion of the seat 40 moves out of the passenger compartment, the seat 40 raises the backrest to the front of the seat 40 again, and the seat 40 has a predetermined height. Only descend. This is to make it easier for a seated passenger to get off the vehicle 1 by lowering the height of the seat 40 from the ground and raising the backrest.

  As described above, when the seat 40 is stored from the outside of the vehicle compartment into the vehicle compartment so that the occupant gets into the vehicle 1, the occupant sits on the seat 40 in the state of FIG. 1D, 1C, and 1B, the seat 40 is moved to the position shown in FIG. 1A, which is the position of the seat 40 when the vehicle 1 travels. Move.

  FIG. 2 is a schematic diagram illustrating an outline of members that operate the movement of the sheet 40 that is movement-controlled by the sheet control apparatus 10 according to the first embodiment of the present invention.

  The movement of the seat 40 is performed by using a remote controller (remote controller) 50 or an elevation operation switch 401 provided on the side surface of the seat 40. In addition, operation of the remote control 50 and the raising / lowering operation switch 401 is performed by the caregiver who cares the passenger | crew etc., when the passenger | crew who sits on the seat 40, or a passenger | crew is an elderly person or a disabled person, for example.

  The remote controller 50 shown in FIG. 2A is provided with a “power” button, an “on” button, and an “out” button. When the sheet 40 is ejected or stored using the remote controller 50, the “power” button is first pressed. Thereafter, when the “ON” button is pressed, the sheet 40 performs a movement operation for storage only while the “ON” button is pressed. Similarly, when the “Exit” button is pressed, the sheet 40 performs a movement operation for swinging out only while the “Exit” button is pressed.

  As described above, since the movement operation of the sheet 40 is performed only while the “ON” button or the “EXIT” button is pressed, any caregiver or the like who operates the remote controller 50 moves the sheet 40. Even when an abnormality occurs and the movement of the sheet 40 has to be stopped, the movement of the sheet 40 can be stopped immediately by releasing the hand from the “ON” button or the “OUT” button.

  FIG. 2B shows a state in which the seat 40 is provided with the lifting operation switch 401. As shown in the drawing, the up / down operation switch 401 is drawn with an upward triangle and a downward triangle. When a portion on which the upward / downward triangular symbol of the lifting operation switch 401 is drawn is pressed, the sheet 40 performs a moving operation for storing only while the portion is pressed. Similarly, when the portion where the downward triangular symbol of the lifting operation switch 401 is drawn is pressed, the seat 40 performs a movement operation for swinging out only while the portion is pressed.

  As described above, since the movement operation of the seat 40 is performed only while the lifting operation switch 401 is pressed, the passenger or caregiver of the seat 40 who operates the lifting operation switch 401 moves the seat 40. Even if some sort of abnormality occurs and the movement of the seat 40 has to be stopped, the movement of the seat 40 can be stopped immediately by releasing the lifting / lowering operation switch 401.

  The seat control device 10 according to the present embodiment detects whether or not an occupant is seated on the seat 40 and switches the moving speed when the seat 40 is moved according to the detected result. The seat 40 moves in the normal mode (first mode) when it is detected that the occupant is seated, and moves at a faster speed than the normal mode when it is detected that the occupant is not seated. It moves in the high speed mode (second mode) that is the mode to perform.

  Hereinafter, a process for detecting whether or not an occupant is seated on the seat 40 will be described with reference to the drawings. FIG. 3 is a schematic diagram showing an outline of occupant detection by the seat control apparatus 10 according to the first embodiment of the present invention.

  FIG. 3A shows a state where the sheet 40 is viewed from above. As shown in the figure, an occupant detection sensor 20 is built in the seat surface of the seat 40. The occupant detection sensor 20 includes switches 201-1 to 201-4 at four locations. Hereinafter, when the switches 201-1 to 201-4 are described without distinction, they are collectively referred to as “switch 201”. The switch 201 is, for example, a membrane switch. When the occupant is seated on the seat 40, the switch 201 is pressed by pressure due to the weight of the occupant, and the switch 201 is switched from OFF to OFF. When the occupant seated on the seat 40 leaves the seat 40, the switch 201 is pulled up due to the absence of pressure due to the weight of the occupant, and the switch 201 is switched from on to off.

  FIG. 3B shows a circuit for the seat control device 10 to detect an occupant and to detect a malfunction of the occupant detection function. As illustrated, the seat control device 10 and the occupant detection sensor 20 are connected by a wire harness 30. The seat control apparatus 10 includes a constant power supply 12 and an A / D (Analog / Digital) analog converter 14.

  With this circuit, the current flowing through the A / D converter 14 varies depending on whether the switch 201 is on or off. That is, when at least one of the switches 201-1 to 201-4 is turned on, all the switches 201-1 to 201-4 are turned off as shown in FIG. As compared with, the current flowing through the A / D converter 14 becomes smaller.

  Further, when the circuit in the occupant detection sensor 20 is disconnected or when the wire harness 30 is disconnected, as shown in FIG. The current flowing through the D converter 14 becomes larger.

  The A / D converter 14 converts the current value of the flowing current into three-stage values of “Lo (low)”, “Mid (medium)”, and “Hi (High)”. Accordingly, if the current flowing through the A / D converter 14 is “Lo”, the seat control apparatus 10 determines that the passenger is seated on the seat 40, and the current flowing through the A / D converter 14 is “Mid”. If it is determined that no occupant is seated on the seat 40, and if the current flowing through the A / D converter 14 is "Hi", it can be determined that the occupant detection function of the occupant detection sensor 20 is broken. . Thus, the seat control device 10 can detect an occupant and a failure of the occupant detection function.

  When the seat control apparatus 10 acquires information indicating an instruction to swing out or store the seat 40 from the remote controller 50 or the lifting operation switch 401, if the seat control apparatus 10 detects that an occupant is on the seat 40, the seat control apparatus 10 moves the seat 40 in the normal mode. Move. In addition, when the seat control device 10 acquires information indicating an instruction to swing out or store the seat 40 from the remote controller 50 or the lifting operation switch 401, the seat control device 10 is faster than the normal mode if it is detected that no occupant is on the seat 40. The sheet 40 is moved in a high speed mode, which is a mode in which the sheet 40 is moved at a moving speed.

  Further, when the seat control device 10 acquires information indicating an instruction to swing out or store the seat 40 from the remote controller 50 or the lifting operation switch 401, if the seat control device 10 detects that the occupant detection function by the occupant detection sensor 20 is broken, The sheet 40 is moved in the normal mode. This is because the seat control device 10 is in a state where it cannot detect whether or not an occupant is seated on the seat 40 due to a malfunction of the occupant detection function. This is because if the seat 40 is moved in the mode, the vehicle 1 may interfere with the occupant's limbs seated.

  Further, the seat control device when the detection result of the detection of the occupant and the detection of the failure of the occupant detection function is changed while the seat control device 10 moves to swing out or store the seat 40. The operation of 10 is as follows.

  When the seat control device 10 detects that no occupant is on the seat 40 while moving the seat 40 in the normal mode for swinging or storing, the seat control device 10 switches from the normal mode to the high speed mode.

  Further, when the seat control device 10 detects that the occupant detection function of the occupant detection sensor 20 is malfunctioning while moving the seat 40 in the normal mode for swinging or storing, the movement of the seat 40 is performed. Stop. Even when the operation is performed after the movement of the sheet 40 is stopped, the sheet control apparatus 10 operates the sheet 40 while maintaining the normal mode. This is because the seat control device 10 is in a state where it cannot detect whether or not an occupant is seated on the seat 40 due to a malfunction of the occupant detection function. This is because when the seat 40 is moved in the high speed mode, the vehicle 1 may interfere with the occupant's limbs seated.

  When the seat control device 10 detects that an occupant is on the seat 40 while moving the seat 40 in the high speed mode for swinging or storing, the seat control device 10 switches from the high speed mode to the normal mode.

  Further, when the seat control device 10 detects that the occupant detection function of the occupant detection sensor 20 is broken while moving the seat 40 in the high-speed mode, the movement of the seat 40 is detected. Stop. Even when the operation is performed after the movement of the seat 40 is stopped, the seat control device 10 operates in the normal mode. This is because the seat control device 10 is in a state where it cannot detect whether or not an occupant is seated on the seat 40 due to a malfunction of the occupant detection function. This is because when the seat 40 is moved in the high speed mode, the vehicle 1 may interfere with the occupant's limbs seated.

[Functional configuration of sheet control apparatus 10]
Hereinafter, the functional configuration of the seat control apparatus 10 will be described. FIG. 4 is a block diagram showing a functional configuration of the seat control apparatus 10 according to the first embodiment of the present invention.

  As illustrated, the sheet control apparatus 10 includes an operation reception unit 101, a detection unit 102, a mode determination unit 103, and a movement control unit 104. The detection unit 102 includes an object detection unit 1021 and an abnormality detection unit 1022. Moreover, the detection part 102 is equipped with the structure for measuring the electric current value and determining the state of the passenger | crew detection sensor 20, such as the above-mentioned constant power supply 12 and A / D converter 14.

  The operation receiving unit 101 receives an instruction to swing out or store the seat 40 from the remote controller 50 or the lifting operation switch 401 by an operation by a passenger or the like.

  The object detection unit 1021 detects whether an occupant is seated on the seat 40 (whether an object is placed). Examples of the object include an occupant, a luggage, and an animal.

  The abnormality detection unit 1022 detects the presence or absence of abnormality in the detection result by the object detection unit 1021. The abnormality is, for example, at least one of disconnection of a circuit in the occupant detection sensor 20 or disconnection of the wire harness 30, but is not limited thereto.

  When the object detection unit 1021 detects that an occupant is seated on the seat 40 (an object is placed), the mode determination unit 103 determines the mode for moving the seat 40 to the normal mode, and the object detection unit When it is detected by 1021 that no occupant is seated on the seat 40 (no object is placed), the seat 40 is determined to be in the high speed mode.

  The movement control unit 104 controls the movement of the seat 40 based on the mode determined by the mode determination unit 103. In addition, when the abnormality detection unit 1022 detects an abnormality in the detection result of the object detection unit 1021, the movement control unit 104 prohibits the transition from the normal mode to the high speed mode.

(Operation of the sheet control apparatus 10)
Hereinafter, the operation of the seat control apparatus 10 will be described. 5 and 6 are flowcharts showing the operation of the seat control apparatus 10 according to the first embodiment of the present invention. FIG. 5 is a flowchart illustrating the operation of the seat control device 10 when the seat control device 10 starts moving the seat 40 from a stopped state. FIG. 6 is a flowchart illustrating the operation of the sheet control apparatus 10 when the sheet control apparatus 10 controls movement in a state where the sheet 40 is moved for swinging out or storing.

  Hereinafter, the flowchart shown in FIG. 5 will be described. The operation shown in the flowchart of FIG. 5 starts periodically (for example, every 0.5 seconds) in a state where the sheet 40 is stopped.

  The operation reception unit 101 determines whether information indicating that the storage button for requesting storage of the seat 40 has been pressed is received from the remote controller 50 or the lifting operation switch 401 (step S001).

  When the information indicating that the storage button has been pressed is not received, the operation receiving unit 101 receives information indicating that the swing button for requesting the swing of the seat 40 has been pressed from the remote controller 50 or the lifting operation switch 401. It is determined whether or not (step S002). If the operation reception unit 101 has not received information indicating that the shake button has been pressed, the process of this flowchart ends.

  When the information indicating that the swing button has been pressed is received, the abnormality detection unit 1022 determines whether or not a failure has occurred in the occupant detection sensor 20 (step S003).

  When it is determined that no failure has occurred in the occupant detection sensor 20, the object detection unit 1021 determines whether there is an occupant in the seat 40 (whether the occupant is seated) (step S004).

  When it is determined that there is no occupant on the seat 40 (no occupant is seated), the movement control unit 104 controls the seat 40 to perform the swing-out operation in the high speed mode (step S005).

  When it is determined that a failure has occurred in the occupant detection sensor 20, or when it is determined that there is an occupant on the seat 40 (the occupant is seated), the movement control unit 104 causes the seat 40 to operate in the normal mode. Control is performed so that the swing-out operation is performed (step S006).

  When the information indicating that the storage button is pressed is received, the abnormality detection unit 1022 determines whether or not a failure has occurred in the occupant detection sensor 20 (step S007).

  When it is determined that no failure has occurred in the occupant detection sensor 20, the object detection unit 1021 determines whether there is an occupant on the seat 40 (whether the occupant is seated) (step S008).

  When it is determined that there is no occupant on the seat 40 (no occupant is seated), the movement control unit 104 controls the seat 40 to perform the storing operation in the high speed mode (step S009).

  When it is determined that a failure has occurred in the occupant detection sensor 20, or when the object detection unit 1021 determines that there is an occupant in the seat 40 (occupant is seated), the movement control unit 104 40 is controlled to perform the storing operation in the normal mode (step S010). Above, the process of this flowchart is complete | finished.

  Hereinafter, the flowchart shown in FIG. 6 will be described. The operation shown in the flowchart of FIG. 6 is started periodically (for example, every 0.5 seconds) in a state where the sheet 40 is moving for swinging or storage.

  The operation reception unit 101 determines whether information indicating that the storage button for requesting storage of the seat 40 has been pressed is received from the remote controller 50 or the lifting operation switch 401 (step S101).

  When the information indicating that the storage button has been pressed is not received, the operation reception unit 101 receives information indicating that the storage button for requesting the ejection of the seat 40 has been pressed from the remote controller 50 or the lifting operation switch 401. It is determined whether or not (step S102). If the operation reception unit 101 has not received information indicating that the shake button has been pressed, the process of this flowchart ends.

  When the information indicating that the swing button has been pressed is received, the abnormality detection unit 1022 determines whether or not a failure has occurred in the occupant detection sensor 20 (step S103).

  When it is determined that no failure has occurred in the occupant detection sensor 20, the object detection unit 1021 determines whether there is an occupant on the seat 40 (whether the occupant is seated) (step S104).

  If it is determined that there is no occupant on the seat 40 (no occupant is seated), the movement control unit 104 controls the seat 40 to perform the swing-out operation in the high speed mode (step S105).

  When it is determined that there is an occupant on the seat 40 (the occupant is seated), the movement control unit 104 controls the seat 40 to perform the swing-out operation in the normal mode (step S106).

  If it is determined that a failure has occurred in the occupant detection sensor 20, the movement control unit 104 controls to stop the swinging operation of the seat 40. (Step S107).

  When information indicating that the storage button has been pressed is received, the abnormality detection unit 1022 determines whether or not a failure has occurred in the occupant detection sensor 20 (step S108).

  When it is determined that no failure has occurred in the occupant detection sensor 20, the object detection unit 1021 determines whether there is an occupant on the seat 40 (whether the occupant is seated) (step S109).

  When it is determined that there is no occupant on the seat 40 (no occupant is seated), the movement control unit 104 controls the seat 40 to perform the storing operation in the high speed mode (step S110).

  When it is determined that there is an occupant on the seat 40 (the occupant is seated), the movement control unit 104 controls the seat 40 to perform the storing operation in the normal mode (step S111).

  When it is determined that a failure has occurred in the occupant detection sensor 20, the movement control unit 104 controls to stop the storing operation of the seat 40. (Step S112).

  Above, the process of this flowchart is complete | finished.

  As described above, according to the seat control apparatus 10 according to the first embodiment, the movement of the seat can be safely controlled even if the function of detecting whether or not the occupant is seated on the seat is out of order. be able to. Further, as described above, according to the seat control apparatus 10 according to the first embodiment, when the seat is moving in the mode when the occupant is not seated on the seat, the occupant is seated on the seat. Even if the function of detecting whether or not the vehicle is out of order and it becomes impossible to detect that an occupant is seated on the seat, the seat can be safely controlled by stopping the movement of the seat. can do.

<Second Embodiment>
The second embodiment of the present invention will be described below with reference to the drawings. FIG. 7 is a schematic diagram illustrating an outline of movement control of the sheet 40 by the sheet control apparatus 10 according to the second embodiment of the present invention. The seat control device 10 according to the second embodiment is determined based on the detection result of the occupant detection sensor 20 when it is determined that an occupant is seated on the seat 40 and when no occupant is seated on the seat 40. Depending on the case, the sheet 40 is moved for moving out and storing in different movement trajectories.

  FIG. 7A shows a movement locus of movement for swinging out the seat 40 when an occupant is seated on the seat 40. FIG. 7B shows a movement locus of movement for swinging out of the seat 40 when no occupant is seated on the seat 40.

  As shown in the figure, when an occupant is seated on the seat 40 (in FIG. 7A), the seat 40 is always more than a certain distance from the instrument panel 60, the entrance door 70, and the center pillar 80. It moves along a movement locus (first movement locus) that moves while maintaining an interval. Thereby, the seat control device 10 can move the seat 40 so that the limbs of the occupant sitting on the seat 40 do not interfere with any part of the vehicle 1.

  On the other hand, as shown in the figure, when no occupant is seated on the seat 40 (FIG. 7B), the seat 40 is the same as when the occupant is seated on the seat 40 (FIG. 7A). It moves with a shorter movement locus (second movement locus) than the movement locus. Thereby, compared with the case where the passenger | crew is seated on the seat 40, the seat control apparatus 10 can move the seat 40 with shorter movement time and less power consumption.

  Further, when an occupant is seated on the seat 40, the seat control device 10 moves the seat 40 in the normal mode and the first movement locus described above. Further, the seat control apparatus 10 moves the seat 40 in the high speed mode and the second movement locus described above when no occupant is seated on the seat 40. Accordingly, the seat control device 10 can move the seat 40 in a shorter movement time when the occupant is not seated on the seat 40 than when the occupant is seated on the seat 40.

  When the abnormality detection unit 1022 detects that the occupant detection sensor 20 is abnormal while the seat 40 is moving for storage in the high speed mode, the seat control device 10 performs the second movement described above. The sheet 40 may be moved by switching from the high speed mode to the normal mode while keeping the locus. Thus, even when the occupant detection sensor 20 cannot detect that the occupant is seated on the seat 40 due to a failure, the seat 40 can be safely stored in the vehicle interior of the vehicle 1.

  When the object detection unit 1021 detects that no occupant is seated on the seat 40 while the seat 40 is moving along the first movement locus, the seat control device 10 determines from the first movement locus. The movement locus of the movement of the seat 40 may be switched to the second movement locus. When the object detection unit 1021 detects that an occupant is seated on the seat 40 while the seat 40 is moving along the second movement locus, the seat control device 10 determines from the second movement locus. The movement locus of the movement of the seat 40 may be switched to the first movement locus.

  FIG. 8 shows a state in which the first movement locus and the second movement locus shown in FIGS. 7A and 7B are superimposed. As shown in the drawing, the movement trajectory from the movement start position ST for the ejection of the seat 40 to the movement end position ED for the ejection of the seat 40 is a first movement trajectory and a second movement trajectory. Have different trajectories. That is, the second movement locus is a movement locus having a shorter movement distance compared to the first movement locus.

  As described above, according to the seat control apparatus 10 according to the second embodiment, the movement trajectory of the seat is different between when the occupant is seated on the seat and when the occupant is not seated on the seat. By making them different, it is possible to shorten the sheet moving time and reduce the power consumption required for moving the sheet.

  Further, as described above, according to the seat control apparatus 10 according to the second embodiment, when the seat is moving in the mode when the occupant is not seated on the seat, the occupant is seated on the seat. Even if the function of detecting whether or not the passenger is out of order and it is no longer possible to detect that the occupant is seated on the seat, the seat movement speed when the occupant is seated on the seat By switching to (slower moving speed), the movement of the seat can be controlled safely.

  The first embodiment and the second embodiment described above may be combined in part or in whole. That is, each mode such as the normal mode and the high-speed mode described above may include at least one of speed information and a movement trajectory.

  The embodiment of the present invention has been described in detail above, but the specific configuration is not limited to the above-described one, and various design changes and the like can be made without departing from the scope of the present invention. is there.

  In addition, you may make it implement | achieve part or all of the sheet | seat control apparatus 10 in embodiment mentioned above with a computer. In that case, the program for realizing the control function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read by the computer system and executed.

  Here, the “computer system” is a computer system built in the seat control apparatus 10 according to the present embodiment, and includes hardware such as an OS (Operating System) and peripheral devices. The “computer-readable recording medium” is a portable medium such as a flexible disk, a magneto-optical disk, a ROM (Read Only Memory), a CD-ROM (Compact Disc Read Only Memory), or a hard disk built in the computer system. A storage device such as a drive (HDD).

  Further, the “computer-readable recording medium” is a medium that dynamically holds a program for a short time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, In this case, a volatile memory inside a computer system that serves as a server or a client may be included that holds a program for a certain period of time. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  Further, the sheet control apparatus 10 according to the present embodiment in the above-described embodiments may be realized as an integrated circuit such as an LSI (Large Scale Integration). Each functional block of the seat control apparatus 10 according to the present embodiment may be individually made into a processor, or a part or all of them may be integrated into a processor. Further, the method of circuit integration is not limited to LSI's, and implementation using dedicated circuitry or general purpose processors is also possible. In addition, when an integrated circuit technology that replaces LSI appears due to the advancement of semiconductor technology, an integrated circuit based on the technology may be used.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle, 10 ... Seat control apparatus, 20 ... Passenger detection sensor, 30 ... Wire harness, 40 ... Seat, 50 ... Remote control, 60 ... Instrument panel, 70 ... Door for getting on / off, 80 ... Center pillar, 101 ... Reception of operation , 102 ... Detection unit, 103 ... Mode determination unit, 104 ... Movement control unit, 201 ... Switch, 401 ... Lifting operation switch, 1021 ... Object detection unit, 1022 ... Abnormality detection unit

Claims (5)

An object detection unit for detecting whether or not an object is placed on a seat movable between the vehicle interior and the exterior of the vehicle interior;
When the object detection unit detects that the object is placed on the sheet, the mode for moving the sheet is determined as the first mode, and the object detection unit places the object on the sheet. If it is detected that there is not, a mode determination unit that determines the mode for moving the sheet as a second mode for moving the sheet at a speed faster than the speed of movement of the sheet in the first mode;
A movement control unit for controlling movement of the sheet based on the mode determined by the mode determination unit;
An abnormality detection unit for detecting the presence or absence of an abnormality in the vehicle based on the result detected by the object detection unit;
With
The mode determination unit does not switch from the first mode to the second mode when an abnormality is detected by the abnormality detection unit.
Sheet control device. The movement control unit has detected that the detection result by the object detection unit is abnormal by the abnormality detection unit in a state where the seat is moving from the vehicle interior to the vehicle exterior in the second mode. The movement of the sheet is stopped,
The sheet control apparatus according to claim 1. When the mode for moving the sheet is the first mode, the movement control unit moves the sheet along the first movement locus associated with the first mode, and moves the sheet. When the mode is the second mode, the second movement path associated with the second mode is moved.
The sheet control apparatus according to claim 1 or 2. The movement control unit has detected that the detection result by the object detection unit is abnormal by the abnormality detection unit in a state where the seat is moving from the outside of the vehicle compartment to the vehicle interior in the second mode. The sheet is moved along the second movement locus at a movement speed associated with the first mode,
The sheet control apparatus according to claim 3. Computer
Detects whether an object is placed on a seat that can move between the interior and exterior of the vehicle,
When it is detected that the object is placed on the sheet, the mode for moving the sheet is determined as the first mode, and when it is detected that the object is not placed on the sheet, Determining a mode for moving the sheet to a second mode for moving the sheet at a speed faster than the speed of movement of the sheet in the first mode;
Controlling the movement of the sheet based on the determined mode;
Detecting the presence or absence of abnormality in the vehicle based on the result of detecting whether or not an object is placed on the seat;
When an abnormality is detected, the switching from the first mode to the second mode is not performed.
Sheet control method.

Images