Seat device for vehicle and method for controlling the same

Abstract

The invention provides a seat device for a vehicle and a control method thereof. A seat device for a vehicle includes: an electric device for moving a seat of the vehicle; a pinching detection unit that detects a person who is pinched by the obstacle by detecting a load change of the electric device when the seat is moved; an obstacle detection unit that detects the presence or absence of an obstacle in the movement direction of the seat; and a control unit for reducing the load of the seat on the obstacle when the obstacle is present.

Description

Technical Field

[0001] The present invention relates to a seat device for a vehicle and a control method thereof. Background Art

[0002] In recent years, efforts have been actively made to provide access to a sustainable transportation system that also takes into account vulnerable road users such as the elderly, disabled, or children. To achieve the above object, research and development have been carried out to further improve traffic safety and convenience through development related to the habitability of vehicles.

[0003] Just as pinch detection can be performed on the electric windows and sunroofs of a vehicle, a seat also uses a motor pulse sensor to detect its position. When detecting a pinch caused by the movement of the seat (i.e., when the front seat moves and pinches the occupant of the rear seat), since the surface of the seat is soft, it is different from the characteristics of rigid objects such as electric windows and sunroofs. Therefore, when a pinch caused by the seat is detected, the load will dissipate, and the tendency is for the frequency change that causes the motor to rotate to become smaller, which leads to the problem of a higher pinch load. This is an issue to be solved.

[0004] By changing the judgment threshold for differentiating (taking the difference) from the motor frequency to improve sensitivity, the detection load can be reduced. However, during normal operation, false detections are likely to occur.

[0005] However, in the habitability of a vehicle, how to reduce false detections when a pinch occurs during automatic seat movement is an issue. Summary of the Invention

[0006] This case aims to solve the above problems and achieve the goal of reducing false detections when a pinch occurs during automatic seat movement. Moreover, it further contributes to the development of a sustainable transportation system.

[0007] Based on the above description, according to an embodiment of the present invention, there is provided a seat device for a vehicle. The seat device for a vehicle includes: an electric device for moving the seat of the vehicle; a pinch detection unit that, when the seat moves, detects an obstacle being pinched by detecting a load change of the electric device; an obstacle detection unit that detects whether an obstacle exists in the moving direction of the seat; and a control unit that, when the obstacle exists, reduces the pinch load of the seat on the obstacle.

[0008] According to an embodiment of the present invention, in the above-mentioned vehicle seat device, the pinch detection unit is configured to determine that an obstacle is pinched when the load change of the electric device exceeds a specified judgment threshold. Further, compared with the case where the obstacle does not exist, in the case where the obstacle exists, the control unit reduces the specified judgment threshold of the pinch detection unit.

[0009] According to an embodiment of the present invention, in the above-mentioned vehicle seat device, when the presence of the obstacle is detected by the obstacle detection unit, compared with the case where the obstacle does not exist, the control unit reduces the moving speed of the seat.

[0010] According to an embodiment of the present invention, in the above-mentioned vehicle seat device, the seat of the vehicle further includes a seat cushion portion and a seat back portion.

[0011] Further, according to another embodiment of the present invention, a control method for a vehicle seat device is provided. The seat device has an electric device for moving the seat of the vehicle. The control method includes: when the seat is moving, detecting an obstacle being pinched by detecting a load change of the electric device; detecting whether the obstacle exists in the moving direction of the seat; and when the obstacle exists, reducing the pinch load on the obstacle caused by the seat.

[0012] According to an embodiment of the present invention, in the control method of the above-mentioned vehicle seat device, the control method further includes: when the load change of the electric device exceeds a specified judgment threshold, determining that the obstacle is pinched. Among them, compared with the case where the obstacle does not exist, in the case where the obstacle exists, the specified judgment threshold of the pinch detection unit is reduced.

[0013] According to an embodiment of the present invention, in the control method of the above-mentioned vehicle seat device, when the presence of the obstacle is detected, compared with the case where the obstacle does not exist, the moving speed of the seat is reduced.

[0014] According to an embodiment of the present invention, in the control method of the above-mentioned vehicle seat device, the seat of the vehicle further includes a seat cushion portion and a seat back portion.

[0015] According to an embodiment of the present invention, when the obstacle detection unit installed in the vehicle detects the possibility of pinching, the judgment threshold of pinch detection is changed to improve sensitivity and reduce the pinch load. Further, by reducing the motor speed and the pinch load without changing the judgment threshold of pinch detection, false detection during normal operation can be prevented, and the pinch load can be reduced only when a pinching situation occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1A and Figure 1B shows a schematic diagram of the seat structure of a vehicle.

[0017] Figure 2 shows a schematic diagram of the architecture for detecting obstacles inside a vehicle.

[0018] Figure 3A and Figure 3B shows the pinching situation caused by seat movement.

[0019] Figure 4 shows a schematic diagram of the architecture of a seat device for a vehicle according to an embodiment of the present invention.

[0020] Figure 5 shows a schematic diagram of the logical concept for judging pinching according to an embodiment of the present invention

[0021] Figure 6A and Figure 6B shows a schematic diagram explaining the relationship between the motor speed and the motor load when pinching occurs.

[0022] Figure 7A and Figure 7B illustrates a graph of the change in motor speed with and without an external force.

[0023] Figure 8 shows an explanatory diagram of a method for reducing the pinching load according to an embodiment of the present invention.

[0024] Figure 9 shows an explanatory diagram of a method for reducing the pinching load according to another embodiment of the present invention.

[0025] Figure 10 shows a schematic diagram of the pinching detection process of a vehicle seat according to an embodiment of the present invention.

[0026] Figure 11 shows a schematic diagram of the pinching detection process of a vehicle seat according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0027] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numerals are used in the drawings and the description to refer to the same or like parts.

[0028] Figure 1A and Figure 1B shows a schematic diagram of the seat structure of a vehicle. As Figure 1A and Figure 1BAs shown, as an example, the seat 10 of a vehicle may include a seat cushion portion 12 and a seat back portion 14. Also, the seat cushion portion 12 and the seat back portion 14 may be pivotally connected together. Generally, the seat 10 is disposed inside the vehicle. The seats disposed in the front of the vehicle may include at least the driver's seat and the passenger seat. Generally, the vehicle seat can provide movement or rotation in at least four directions, such as the forward and backward movement of the entire seat 10, the up and down movement of the entire seat 10, the tilting movement of the front end of the seat cushion portion 12, and the forward and backward tilting movement of the seat back portion 14. Of course, in a higher-order seat 10, more directions of movement can be provided.

[0029] As Figure 1A with Figure 1B shown, this seat 10 is slidably mounted on the floor inside the vehicle, whereby the seat 10 can move forward and backward along direction A (substantially consistent with the longitudinal direction of the vehicle) by a motor 21. The seat 10 can move the front end of the seat cushion portion 12 up and down (tilt) in direction B by a motor 22. The seat 10 can move up and down in direction C (i.e., the height direction) by a motor 23, whereby the height of the seat 10 can be adjusted. Thus, the seat back portion 14 can be rotated in direction D by a motor 24, that is, the seat back portion 14 can be reclined backward or forward.

[0030] As an embodiment, the seat 10 may further be provided with a controller 30, such as a seat control ECU (Electric Control Unit). The controller 30 is composed of a processor, for example, and it can receive user instructions (for example, the user can operate a switch group 40 provided on the seat 10) to control at least one of the motors 21 to 24 to adjust the posture of the seat 10. The controller 30 as the seat control ECU is also used to execute the control programs described later. Also, these control programs can also be controlled by the vehicle's core ECU. The core ECU can receive detection signals from various sensors provided on the vehicle V and perform corresponding control programs through calculation.

[0031] Figure 2 Schematic diagram showing the architecture for detecting obstacles inside the vehicle. As Figure 2 shown, detection devices 52, 54 for detecting obstacles OB are provided inside the vehicle V. These detection devices 52, 54 may be cameras or radars, for example. As an example, cameras or radars, etc. may be provided inside the roof lining of the vehicle V. Of course, they may also be provided at other suitable places inside the vehicle V. As an example of an embodiment of the present invention, the cameras or radars 52, 54 can detect within a detection area 60 between the front seat 10 and the rear seat 18 to determine whether there is an obstacle OB within the detection area 60.

[0032] Figure 3A And Figure 3B displays the pinching condition caused by the movement of the seat. As Figure 3A shown, when the current driver or passenger adjusts the seat 10 to move backward along direction A, the seat 10 may pinch the occupant of the rear seat 18. At this time, the controller 30 serving as the seat control ECU can control the motor 21 of the seat 10 (see Figure 1B ), so that the seat 10 moves forward a specified distance along direction A' opposite to direction A to release the pinching of the occupant of the rear seat 18 by the seat 10. Similarly, as Figure 3B shown, when the current driver or passenger adjusts the seat 10 to make the backrest 14 fall backward along direction D, the seat 10 may pinch the occupant of the rear seat 18. At this time, the controller 30 serving as the seat control ECU can control the motor 24 of the seat 10 (see Figure 1B ), so that the backrest 14 of the seat 10 falls forward a specified distance along direction D' opposite to direction D to release the pinching of the occupant of the rear seat 18 by the seat 10.

[0033] According to an embodiment of the present invention, when there is an obstacle between the front seat 10 and the rear seat 18, the present invention further provides a control method for the seat 10 to avoid pinching between the obstacle OB and the rear occupant. The following further describes this control method.

[0034] Figure 4 Displays a block diagram of a vehicle seat device according to an embodiment of the present invention. As Figure 1A And Figures 1B to 4 shown, the seat device 100 may include an electric device 102, a pinching detection unit 104, an obstacle detection unit 106, and a control unit 108. The electric device 102 is used to move the seat 10 of the vehicle V, that is, to control the movement of the seat 10 in Figure 1A each of the directions A to D shown. The electric device 102 may be composed of the motors 21 to 24 shown in Figure 1B .

[0035] In addition, the pinching detection unit 104 is configured to detect whether the obstacle OB is pinched by detecting the load change of the electric device 102 (that is, the difference in motor speed) when the seat 10 moves. The motor speed here may refer to any one or a combination of the motors 21 to 24 installed on the seat 10. The situation where the obstacle OB is pinched usually occurs during the forward and backward movement of the seat 10 or the backward fall of the backrest 14. Therefore, for example, it can be detected by Figure 1B the seat control ECU shown to detect the speed change of the motors 21 and 24 to determine the change in the pinching load on the obstacle OB.

[0036] The obstacle detection unit 106 detects whether there is an obstacle OB in the moving direction of the seat 10. That is, as Figure 2 shown, detection devices 52, 54 such as cameras or radars in the vehicle V can detect whether there is an obstacle OB in the detection area 60.

[0037] The control unit 108 can be implemented by the controller 30 of the seat control ECU or by the core ECU of the vehicle. Here, the control unit 108 can generate a control signal for controlling the electric device 102 based on the detection results from the pinch detection unit 104 and the obstacle detection unit 106, causing the seat 10 to perform corresponding actions.

[0038] When there is an obstacle OB, that is, when there is an obstacle between the front seat 10 and the rear seat 18, the pinch load on the obstacle OB caused by the seat 10 is reduced. As an implementation, this operation can be controlled by the controller 30 as the seat control ECU. For example, when the obstacle detection unit 106 detects the presence of the obstacle OB, this detection result is transmitted to the controller 30, and the controller 30 can control the motors 21, 24 to reduce the pinch load on the obstacle OB. How to reduce the pinch load on the obstacle OB is further described below.

[0039] Figure 5 Show a logical concept diagram for judging pinch according to the embodiment of the present invention. As Figure 5 shown, after the control unit 108 (for example, through the controller 30 as the seat control ECU) receives the motor speed, it will perform the differential value judgment in step S10 and the pinch tendency judgment in step S12. Finally, in step S14, combining the judgment results of steps S10 and S12, the judgment result of the pinch of the seat 10 on the obstacle 10 is output. That is, when the seat 10 pinches the obstacle OB or the occupant of the rear seat 18, the rotational speed of the motor (such as motors 21 to 24, etc.) will decrease. After that, the difference value of the speed reduction amount (i.e., equivalent to the differential value) can be calculated. Then, it is judged whether the difference value exceeds the specified judgment threshold, and when the differential value shows a pinch tendency, it is judged that a pinch has occurred.

[0040] Regarding step S10, when performing the difference value judgment, that is, when performing the difference value judgment of the motor speed, the difference value Δ of the motor speed is calculated at a certain count (such as every once in a while). When the difference value Δ exceeds the specified judgment threshold, it is judged that a pinch has occurred.

[0041] As Figure 6A and Figure 6BAs shown, when pinching occurs at time T1, the motor speed begins to decrease as time increases, where X is the decrease in the motor speed caused by pinching. At the same time, the load (estimated value) applied to the motor also begins to increase as time increases, where Y is the increase in the load on the obstacle caused by pinching. Therefore, using the characteristic curve of the motor, the pinching load on the obstacle OB can be estimated from the change in the motor speed.

[0042] Furthermore, if only the difference in motor speed is used to determine whether pinching has occurred, large fluctuations in the motor speed may be caused by external forces of local interference (for example, when the occupant suddenly sits up, etc.), resulting in false judgments. Therefore, in the present invention, when further determining the tendency of pinching through step S12, first, the difference in motor speed calculated each time is compared for a period of time. If the difference remains approximately constant, it can be determined that pinching has occurred.

[0043] As Figure 7A shown, the difference Δ in the motor speed calculated for each period of time remains approximately constant. The increase in the pinching load during pinching takes a relatively long time to change. And as Figure 7B shown, the pinching load caused by external force interference changes greatly in a short period of time. Therefore, the measurement data measured in the past can be used to analyze whether there is a tendency of pinching.

[0044] Next, the method of reducing the pinching load when the obstacle detection unit 106 detects the obstacle OB will be described. According to an embodiment of the present invention, as Figure 8 shown, at time point T1, for example, when the seat 10 moves backward (it may also include the case where the seat 10 moves backward and the backrest 14 reclines simultaneously), when it first contacts the obstacle OB or the occupant in the rear seat 18, it is the time point when pinching starts. After that, as time increases, the motor speed begins to decrease. At this time, as described above, the controller 30 as the seat control ECU starts to calculate the difference in the motor speed. In the case where the obstacle OB does not exist, at time point T2, when the load change (i.e., the difference) of the electric device 102 by the pinching detection unit 104 exceeds the specified judgment threshold b1, it is determined that pinching has occurred and pinching is detected. The pinching load at this time is b1, and the object of pinching is the occupant in the rear seat 18.

[0045] When the obstacle detection unit 106 detects the presence of the obstacle OB, at this time, the controller 30 as the seat control ECU can reduce the judgment threshold from the judgment threshold b1 to the judgment threshold b2. Thus, it can be seen that the load change (i.e., the difference) exceeds the judgment threshold b2 at a time point T earlier than time point T2. Therefore, according to the embodiment of the present invention, when the obstacle OB exists, pinching can be detected earlier. As Figure 8As shown, at time point T, it corresponds to a pinch load a2, which is less than the pinch load a1.

[0046] Therefore, compared with the case where the obstacle OB does not exist, in the case where the obstacle OB exists, the specified judgment threshold of the pinch detection unit 104 is decreased (b1 → b2), and the pinch load can be decreased from a1 to a2. Thus, in the case where the obstacle OB exists, by decreasing the judgment threshold, it is possible to judge the occurrence of pinching earlier, thereby reducing the pinch load on the obstacle OB (or the occupant sitting in the rear seat 18).

[0047] According to another embodiment of the present invention, as Figure 9 shown, at time point T1, for example, when the seat 10 moves backward (which may include the case where the seat 10 moves backward and the seat back 14 reclines backward simultaneously), the time point when it first contacts the obstacle OB or the occupant in the rear seat 18 is the start time point of pinching. After that, as time increases, the motor speed starts to decrease. At this time, as described above, the controller 30, which is the seat control ECU, starts to calculate the difference in the motor speed. In the case where the obstacle OB does not exist, at time point T2, when the load change (i.e., the difference) of the electric device 102 detected by the pinch detection unit 104 exceeds the specified judgment threshold b, it is judged that pinching has occurred and pinch detection is performed. The pinch load at this time is a1, and the object of pinching is the occupant in the rear seat 18.

[0048] When the obstacle detection unit 106 detects the existence of the obstacle OB, at this time, compared with the method of decreasing the judgment threshold in the above-described embodiment, in this embodiment, instead of decreasing the judgment threshold, the motor speed is decreased. At this time, as Figure 9 shown, after the motor speed is decreased, its corresponding curve changes from I-1 to I-2. At this time, the pinch load curve changes from II-1 to II-2. Thus, even if the obstacle OB exists and the judgment threshold b remains unchanged, since the motor speed is decreased, the corresponding pinch load is also decreased to a2.

[0049] Therefore, compared with the case where the obstacle OB does not exist, in the case where the obstacle OB exists, decreasing the motor speed, that is, the moving speed of the seat, can also decrease the pinch load. Thus, in the case where the obstacle OB exists, by decreasing the moving speed of the seat (including the moving speeds of the seat cushion portion 12 and the seat back 14), the pinch load on the obstacle OB (or the occupant sitting in the rear seat 18) can be decreased.

[0050] Next, the control process of the pinch detection of the vehicle seat according to the embodiment of the present invention will be described. Figure 10 A schematic diagram showing the pinch detection process of the vehicle seat according to the embodiment of the present invention is displayed. This embodiment corresponds to Figure 8 the control method shown.

[0051] As shown Figure 10 in FIG. 1, in step S100, the automatic operation start condition is satisfied, and the automatic operation starts. The automatic operation here may refer to the automatic adjustment operation of the seat 10 of the vehicle V, which is the automatic movement in at least four directions A to D as shown Figure 1A in FIG. 2.

[0052] In step S102, the monitoring of the interior of the vehicle V is started using cameras or radars as detection devices 52 and 54 inside the vehicle V. The cameras or radars are examples of the obstacle detection unit 106.

[0053] In step S104, at this time, the obstacle detection unit 106 can detect within the detection area 60 inside the vehicle V to determine whether there is an obstacle OB, that is, to detect whether there is an obstacle OB between the front seat 10 and the rear seat 18.

[0054] When it is detected that the obstacle OB exists between the front seat 10 and the rear seat 18 (i.e., "Yes" in step S104), step S106 is executed. In step S106, the determination threshold for pinch detection is lowered from the first determination threshold b1 to the second determination threshold b2 (refer to Figure 8 ), thereby improving the sensitivity. Then, step S110 is continued.

[0055] Conversely, when it is not detected that the obstacle OB exists between the front seat 10 and the rear seat 18 (i.e., "No" in step S104), step S108 is executed. In step S108, the determination threshold for pinch detection is set to the first determination threshold b1 (refer to Figure 8 ). Then, step S110 is continued.

[0056] In step S110, it is detected whether the difference in motor speed (thereby estimating the pinch load) exceeds the determination threshold. At this time, if no obstacle OB is detected in step S104, it is determined whether a pinch occurs based on whether the difference in motor speed exceeds the first determination threshold b1. Also, if an obstacle OB is detected in step S104, it is determined whether a pinch occurs based on whether the difference in motor speed exceeds the second determination threshold b2. This determination can be performed, for example, by the controller 30 as the seat control ECU.

[0057] In step S110, when the difference in motor speed exceeds the judgment threshold (b1 or b2) (i.e., "yes"), that is, when it is determined that pinching has occurred, step S112 is executed, that is, the controller 30 performs a reverse movement of the seat 10. Here, the so-called reverse movement means that when the seat 10 moves in a certain direction and pinching occurs, the seat 10 is moved in the opposite direction of the above-mentioned certain direction. For example, when the seat 10 moves backward as a whole, the reverse movement will move the seat 10 forward. Also, if the backrest 14 of the seat 10 moves (rotates) backward, the reverse movement will move the backrest 14 of the seat 10 forward (rotates). Of course, the movement of the seat 10 can also be a movement including both of these, or a movement including at least the Figure 1A four directions shown.

[0058] Next, in step S114, when the seat 10 has performed the reverse movement and reached the specified distance, the automatic adjustment action of the seat 10 is stopped, and this control process ends. For example, for the forward and backward movement of the seat 10, the specified distance is the straight-line distance, and for the forward and backward movement (rotation) of the backrest 14 of the seat 10, the specified distance is the rotation angle (or the arc distance of the movement). In addition, this specified distance can be set in the controller in advance, or can also be set by the user.

[0059] Also, in step S110, when the difference in motor speed does not exceed the judgment threshold (b1 or b2) (i.e., "no"), that is, when it is determined that no pinching has occurred, this control process ends.

[0060] Figure 11 Show a schematic diagram of the pinching detection process of a vehicle seat according to another embodiment of the present invention. This embodiment corresponds to the Figure 9 shown control method. As Figure 11 shown, in step S200, the automatic action start condition is satisfied, and the automatic action starts. The automatic action here can refer to the automatic adjustment action of the seat 10 of the vehicle V, which is the automatic movement in at least the four directions of A to D as Figure 1A shown.

[0061] In step S202, start using cameras or radars as detection devices 52 and 54 in the vehicle V to monitor the interior of the vehicle V. The cameras or radars are examples of the obstacle detection unit 106.

[0062] In step S204, at this time, the obstacle detection unit 106 can detect within the detection area 60 in the vehicle V to determine whether there is an obstacle OB, that is, detect whether there is an obstacle OB between the front seat 10 and the rear seat 18.

[0063] When an obstacle OB is detected as existing between the front seat 10 and the rear seat 18 (i.e., "Yes" in step S204), step S206 is executed. In step S206, the motor speed is reduced to a second motor speed (refer to Figure 9 ). After that, step S210 is continued.

[0064] Conversely, when no obstacle OB is detected as existing between the front seat 10 and the rear seat 18 (i.e., "No" in step S204), step S208 is executed. In step S208, the motor speed is set to a first motor speed greater than the second motor speed (refer to Figure 9 ). After that, step S210 is continued. After that, step S210 is continued.

[0065] In step S210, it is detected whether the difference in the motor speed (thereby estimating the pinch load) exceeds a determination threshold b (refer to Figure 9 ). At this time, if no obstacle OB is detected in step S204, it is determined whether pinching has occurred based on whether the difference in the first motor speed exceeds the determination threshold b. Also, if an obstacle OB is detected in step S204, it is determined whether pinching has occurred based on whether the difference in the second motor speed exceeds the determination threshold b. This determination can be performed, for example, by the controller 30 serving as the seat control ECU.

[0066] In step S210, when the difference in the motor speed (the first or second motor speed) exceeds the determination threshold b (i.e., "Yes"), that is, when it is determined that pinching has occurred, step S212 is executed, that is, the controller 30 performs a reverse movement operation of the seat 10. Here, the reverse movement operation means that when the seat 10 moves in a certain direction and pinching occurs, the seat 10 is moved in the opposite direction to the above-mentioned certain direction. For example, when the seat 10 moves backward as a whole, the reverse movement operation will move the seat 10 forward. Also, if the backrest 14 of the seat 10 moves backward (rotates), the reverse movement operation will move the backrest 14 of the seat 10 forward (rotate). Of course, the movement of the seat 10 can also be a movement including both of these, or a movement including at least the Figure 1A four directions shown above.

[0067] Next, in step S214, when the seat 10 performs the reverse movement operation and reaches a specified distance, the automatic adjustment operation of the seat 10 is stopped, and this control process ends. For example, for the forward and backward movement of the seat 10, the specified distance is a straight-line distance, and for the forward and backward movement (rotation) of the backrest 14 of the seat 10, the specified distance is a rotation angle (or an arc distance of movement). In addition, this specified distance can be set in advance in the controller, or can also be set by the user.

[0068] Further, in step S210, when the difference in the motor speed (first or second motor speed) does not exceed the determination threshold b (i.e., "no"), that is, when it is determined that no pinching has occurred, this control process ends.

[0069] According to an embodiment of the present invention, the determination threshold for pinch detection is changed only when a camera or radar installed in the vehicle detects a possibility of pinching, so as to improve sensitivity and reduce the pinch load. Further, by reducing the motor speed and the pinch load without changing the determination threshold for pinch detection, false detection during normal operation can be prevented, and the pinch load can also be reduced only when a pinch condition occurs.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A seat device for a vehicle, characterized in that, Comprising: An electric device for moving the seat of the vehicle; A pinching detection unit that, when the seat moves, detects an obstacle being pinched by detecting a change in the load of the electric device; An obstacle detection unit that detects whether an obstacle exists in the moving direction of the seat; And A control unit that, when the obstacle exists, reduces the pinching load on the obstacle caused by the seat.

2. The seat device for a vehicle according to claim 1, wherein The pinching detection unit is configured to determine that the obstacle is pinched when the load change of the electric device exceeds a specified determination threshold, Compared with the case where the obstacle does not exist, when the obstacle exists, the control unit reduces the specified determination threshold of the pinching detection unit.

3. The seat device for a vehicle according to claim 1, wherein When the presence of the obstacle is detected by the obstacle detection unit, compared with the case where the obstacle does not exist, the control unit reduces the moving speed of the seat.

4. The seat device for a vehicle according to any one of claims 1 to 3, wherein The seat of the vehicle further includes: a seat cushion portion and a seat back portion.

5. A control method for a seat device for a vehicle, the seat device having an electric device for moving the seat of the vehicle, characterized in that, Comprising: When the seat moves, an obstacle being pinched is detected by detecting a change in the load of the electric device; Detecting whether an obstacle exists in the moving direction of the seat; And When the obstacle exists, reducing the pinching load on the obstacle caused by the seat.

6. The control method for a vehicle seat device according to claim 5, characterized in that, Further comprising: When the load change of the electric device exceeds a specified determination threshold, it is determined that the obstacle is pinched, Wherein, compared with the case where the obstacle does not exist, when the obstacle exists, the specified determination threshold of the pinching detection unit is reduced.

7. The control method of the seat device for a vehicle according to claim 5, wherein When the presence of the obstacle is detected, compared with the case where the obstacle does not exist, the moving speed of the seat is reduced.

8. The control method of the seat device for a vehicle according to any one of claims 5 to 7, wherein The seat of the vehicle further includes: a seat cushion portion and a seat back portion.

Images