Pre-active safety seat system and method for increasing speed of pre-active safety seat

Abstract

Provided are a pre-active safety seat system and a method of improving a pre-active safety seat speed. The pre-active safety seat system applied to a vehicle implements a method for improving a pre-active safety seat speed by matching a tilt angle, a sliding movement position, and a seat cushion angle of inclination detected from each of a plurality of sensors of a multi-seat sensor in a dangerous collision environment detected by a vehicle environment sensor of an ADAS with a seat safety map to confirm a dangerous area, and combining and simultaneously controlling a plurality of motors of a multi-seat motor configured for a seat target posture of a seat by a controller to convert the dangerous area to a safe area, thereby shortening a time required for a pre-active safety seat of a seat target posture in a pre-active safety seat operable section before a collision according to a danger detection.

Description

Technical Field

[0001] This invention relates to a pre-active safety seat system for vehicles, and more particularly to a method for increasing the pre-active safety seat speed in vehicles using a pre-active safety seat system, wherein the time required for the pre-active safety seat (PSS) to detect a vehicle collision hazard is advanced by the execution of multiple electric motors. Background Technology

[0002] In recent years, pre-active safety seats (PSS) have been adopted to protect passengers in response to vehicle collisions.

[0003] As an example, Pre-Active Safety Seat (PSS) is a method that predicts a collision by detecting collision hazards from advanced driver assistance system (ADAS) environmental sensors and, in response, changes the seat posture to reduce injury to passengers in abnormal postures outside the response range of the seat belts and airbags.

[0004] To this end, the Pre-Active Safety Seat (PSS) uses a seat motor to control the current seat posture to the target posture, and through the execution of the seat motor, it quickly changes the unstable position of the backrest in the current posture to the angle of the backrest in the safe target posture.

[0005] Therefore, in situations where the collision speed is high, the seat is located in the rear, or the seat back is tilted backward during the collision, the pre-active safety seat (PSS) can improve passenger safety, given the collision hazard that could still result in serious injury despite the use of seat belts and airbags.

[0006] However, the time required for pre-active safety seats (PSS) is determined by the difference between the seat's current and target postures and the execution of the seat motors. But it is set solely by the execution of the motors, which may make it difficult to achieve sufficient execution based on the collision situation.

[0007] For example, if the motor speed is A° / second, then B seconds are required to quickly change the target posture's backrest angle to Y° by setting the current posture's backrest angle to X°. A and B are values ​​that can ensure passenger safety in a typical vehicle collision scenario, and the regions of X and Y, which represent the range for changing the backrest angle of a typical seat, signify a state where X° is tilted back more than Y°.

[0008] Therefore, when a vehicle in front suddenly stops or an accident occurs, if the collision hazard detection time by the ADAS environmental sensors is too late, even with the pre-active safety seat (PSS), the seat posture change time is less than the time required by the PSS, making it inevitable that a safe posture cannot be ensured.

[0009] Even in such measured collision scenarios, using only the tilt motor itself for the individual controls of the pre-active safety seat (PSS) seat back inevitably presents significant challenges in enhancing robustness against accidents.

[0010] The information disclosed in the background section of this invention is only intended to enhance the understanding of the general background of this invention and is not to be construed as confirmation or any form of indication that such information constitutes prior art known to those skilled in the art. Summary of the Invention

[0011] Various aspects of the present invention aim to provide a pre-active safety seat system for a vehicle and a method for increasing the speed of the pre-active safety seat, the application of which includes a multi-seat motor with multiple electric motors for individually controlling the tilt angle, sliding position and tilt angle of the seat, and controlling all the tilt angle of the seat back, the sliding position of the seat cushion and the tilt angle of the seat cushion by the multiple seat motors in a vehicle collision hazard detection environment, thereby reducing the time required for the pre-active safety seat (PSS) to change the seat from a dangerous posture to a safe posture during the pre-active safety seat (PSS) operability phase before a collision according to hazard detection.

[0012] A pre-active safety seat system for a vehicle, according to various exemplary embodiments of the present invention for achieving its purpose, includes: a vehicle environment sensor configured to detect hazardous collision information of adjacent vehicles while the driver's vehicle is in motion; multiple seat sensors configured to detect one or more of tilt angle, sliding position, and seat cushion tilt angle as the current seat posture of the seat in the vehicle; multiple seat motors configured to generate motor driving force such that the current seat posture of the seat is changed to a target seat posture by changing one or more of tilt angle, sliding position, and seat cushion tilt angle; and a controller electrically connected to the vehicle environment sensor, multiple seat sensors, and multiple seat motors, and configured to control the motor driving force to adjust the current seat posture of the seat to the target seat posture in the event of a hazardous collision situation confirmed by the controller based on hazardous collision information.

[0013] As an example of various exemplary embodiments of the present invention, vehicle environment sensors are components of advanced driver assistance systems (ADAS).

[0014] As an exemplary embodiment of the present invention, multiple seat sensors are installed on the seat and include: a tilt sensor for detecting tilt angle; a slide sensor for detecting slide movement position; and a pitch sensor for detecting seat cushion tilt angle relative to seat back.

[0015] As an exemplary embodiment of the present invention, a tilt sensor is installed on the seat back of the seat, a sliding sensor is installed on the seat cushion of the seat, and a pitch sensor is installed on the connection between the seat cushion and the seat back.

[0016] As an exemplary embodiment of the present invention, a multi-seat motor is mounted on a seat and includes: a tilt motor configured to increase or decrease the tilt angle; a sliding motor configured to change the sliding movement position; and a pitch motor configured to increase or decrease the seat cushion tilt angle.

[0017] As an exemplary embodiment of the present invention, a tilt motor is mounted on the seat back of the seat, a slide motor is mounted on the seat cushion of the seat, and a pitch motor is mounted on the hinge connection between the seat cushion and the seat back.

[0018] As an exemplary embodiment of the present invention, the tilt motor, the slide motor, and the pitch motor are stepper motors.

[0019] As an exemplary embodiment of the present invention, the controller is connected to a seat safety map, which includes a danger zone and a safety zone based on the seat back angle and tilt angle. The danger zone is the part of the map that needs to be changed from the current seat posture to the target seat posture.

[0020] As an exemplary embodiment of the present invention, the controller is configured to match the seat cushion tilt angle with the backrest angle, and simultaneously match the tilt angle with the backrest angle according to the sliding movement position, and as a matching result, generate a motor output that changes the current seat posture to the target seat posture.

[0021] As an exemplary embodiment of the present invention, the controller is configured to classify the motor output into tilt motor output for changing the tilt angle, slide motor output for changing the sliding position, and pitch motor output for changing the seat pitch angle.

[0022] As an exemplary embodiment of the present invention, the controller simultaneously sends the tilt motor output and the slide motor output to the multiple seat motors, thereby shortening the time required for PSS target posture of the seat during the PSS operable segment before a vehicle collision based on hazard detection.

[0023] Additionally, a method for improving pre-safety seat speed according to various exemplary embodiments of the present invention for achieving the purpose includes: while the vehicle is in motion, confirming a collision hazard situation of an adjacent vehicle detected by ADAS via a controller; matching a mapping that confirms a mapping of the current seat posture by matching one or more of the seat tilt angle, sliding position, and seat cushion tilt angle detected by multiple seat sensors mounted on the seat with a seat safety mapping, and the mapping confirms the current seat posture as a danger zone; determining a change in one or more of the seat tilt angle, sliding position, and seat cushion tilt angle; and prior to a vehicle collision detected according to the hazard, in a PSS operable segment, driving multiple seat motors electrically connected to the controller and changing the current seat posture to a target posture of the seat in a safe zone by controlling the drive of multiple seat motors mounted on the seat.

[0024] As various exemplary embodiments of the present invention, relative to the target seat posture, the controller sets the posture of the safest region found by analyzing the seat safety mapping when it is confirmed that the current seat posture belongs to a dangerous area as the target posture.

[0025] As an exemplary embodiment of the present invention, the mapping matching includes matching the tilt angle of the sliding movement position with the backrest angle of the seat safety mapping, and as a result of matching the seat cushion tilt angle to the tilt angle of the seat safety mapping, identifying the danger zone and the safety zone of the current seat posture.

[0026] As an exemplary embodiment of the present invention, driving a multi-seat motor includes: adjusting the seat back angle, which changes the tilt angle of the seat back; moving the position of the seat cushion, which moves the sliding position; and adjusting the seat cushion tilt, which changes the height of the seat cushion tilt angle.

[0027] As an exemplary embodiment of the present invention, the adjustment of the seat back angle and the movement of the seat cushion position are controlled simultaneously, thereby shortening the time required for the PSS of the seat target posture.

[0028] As an exemplary embodiment of the present invention, adjusting the seat back angle includes confirming whether the tilt angle does not meet the target value of the safe zone, and changing the tilt angle by driving a tilt motor installed on the seat.

[0029] As an exemplary embodiment of the present invention, the movement of the seat cushion position includes confirming whether the sliding movement position does not meet the target value of the safe area, and moving the sliding movement position by driving a sliding motor installed on the seat.

[0030] As an exemplary embodiment of the present invention, the adjustment of the seat cushion tilt includes confirming whether the seat cushion tilt angle does not meet the target value of the safe zone, and changing the tilt angle of the seat cushion by driving a tilt motor installed on the seat.

[0031] According to various exemplary embodiments of the present invention, a pre-active safety seat system that increases the speed of the vehicle's pre-active safety seat achieves the following operations and effects.

[0032] First, by employing a multi-seat motor system comprising three independent motors (for controlling each of the seat's tilt angle, slide position, and pitch angle), the execution of the seat motors can be enhanced, determining the pre-active safety seat (PSS) timing together with the difference between the seat's current and target postures. Second, the multi-seat motor system with enhanced seat motor execution controls the tilt angle, slide position, and pitch angle together during collision risk detection timing, thus advancing the PSS timing by increasing PSS speed. Third, the performance of the increased PSS speed is further improved by additionally changing the pitch angle control via the pitch motor, while the seat tilt angle is controlled by simultaneously driving the tilt and slide motors. Fourth, by increasing PSS speed, the collision risk detection timing can ultimately be sufficiently adjusted to a safe zone, thereby improving the robustness of the PSS technology. Fifth, by increasing PSS speed, even with the same collision risk detection timing, the start time of PSS operation can be delayed, minimizing consumer complaints due to frequent operation.

[0033] The methods and apparatus of the present invention have other features and advantages, which will be appreciated through the accompanying drawings and appendices incorporated herein by reference. Figure 1 The following description, which illustrates certain principles of the invention, will become apparent or will be described in more detail. Attached Figure Description

[0034] Figure 1 This is a diagram illustrating the configuration of a pre-active safety seat system applied to a vehicle according to various exemplary embodiments of the present invention.

[0035] Figure 2 This is a diagram illustrating the configuration of the controller of a pre-active safety seat system according to various exemplary embodiments of the present invention.

[0036] Figure 3 This is a flowchart of a method for improving the speed of a pre-active safety seat system in a vehicle using various exemplary embodiments of the present invention.

[0037] Figure 4This is a diagram illustrating how a vehicle, according to various exemplary embodiments of the present invention, detects the status of adjacent vehicles using vehicle environment sensors of ADAS.

[0038] Figure 5 This is a diagram illustrating examples of the PSS (Power Suppression Time) required by a pre-active safety seat system in an ADAS (Advanced Driver Assistance System) operating state under a collision hazard situation, according to various exemplary embodiments of the present invention.

[0039] Figure 6 This is a diagram illustrating an example of a pre-active safety seat system for a vehicle, according to various exemplary embodiments of the present invention, confirming the target posture of the seat through a seat safety mapping constructed by a DB.

[0040] Figure 7 This is a diagram illustrating various exemplary embodiments of the present invention, showing the changes in the seat back tilt angle and the movement of the seat cushion position, wherein a pre-safety seat using a tilt motor and a sliding motor operates within the time required by the PSS.

[0041] Figure 8 This is a diagram illustrating the seat cushion tilt angle change states of a pre-safety seat using a pitch motor within the time required for the PSS, according to various exemplary embodiments of the present invention.

[0042] It should be understood that the accompanying drawings are not necessarily drawn to scale, but rather present slightly simplified representations of various features illustrating the basic principles of the invention. Specific design features of the invention contained herein, including, for example, specific dimensions, orientations, positions, and shapes, will be determined in part by the application and usage environment of the particular design.

[0043] In the accompanying drawings, reference numerals are used throughout the various drawings to refer to the same or equivalent parts of the invention. Detailed Implementation

[0044] Detailed reference is now given to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. Although the invention will be described in conjunction with exemplary embodiments thereof, it should be understood that this description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments thereof, but also various alternatives, modifications, equivalents and other embodiments that may be included within the spirit and scope of the invention as defined by the appended claims.

[0045] In the following description of the invention, exemplary embodiments of the invention will be described in detail with reference to the accompanying exemplary drawings. These exemplary embodiments are illustrative and may be practiced in various different forms by those skilled in the art to which various exemplary embodiments of the invention pertain, and therefore the exemplary embodiments of the invention are not limited to those described herein.

[0046] Figure 1 and Figure 2 The vehicle 1 shown is equipped with the pre-active safety seat system 10.

[0047] Reference Figure 1 The pre-active safety seat system 10 is applied to the seat 3, and the seat 3 includes a seat cushion 3A for seating the driver or passenger and a seat back 3B for supporting the back of the driver or passenger.

[0048] However, the difference is that the seat 3 is connected to the pre-active safety seat system 10, so that the position of the seat cushion 3A is moved by sliding movement according to the floor 5, so as to form upward and downward movement by using the tilt angle as the seat cushion pitch. The seat back 3B is located in the middle of the front / rear door of the vehicle 1, so as to form a tilt movement of the backrest angle in the fore-and-aft direction relative to the B-pillar 7 on which the seat belt fastener 7A is installed.

[0049] The sliding movement of the seat cushion 3A is associated with the sliding motor 42, the seat cushion pitch of the seat cushion 3A is associated with the pitch motor 43, and the tilt of the seat back 3B is associated with the tilt motor 41.

[0050] As an example, the pre-active safety seat system 10 includes a pre-active safety seat system that increases the PSS speed within the time required for the pre-active safety seat (PSS) by applying multiple seat sensors 30 and multiple seat motors 40 to the multi-degree-of-freedom seat mechanism of the seat 3.

[0051] Therefore, the pre-active safety seat system 10 includes: a vehicle environment sensor 20, multiple seat sensors 30, multiple seat motors 40, a controller 50, and a seat safety mapping 60.

[0052] The vehicle environment sensor 20 is one of the various sensors constituting the advanced driver assistance system 9 of the vehicle 1. In the present case, using light detection and ranging (LiDAR) (configured to measure the position coordinates of reflective objects by measuring the time it takes for emitted light to return after reflection) and cameras (for capturing road information as video), ADAS 9 provides lane and target point type classification, road type determination, and the current lane and behavior of adjacent vehicles associated with the mapping database in three dimensions.

[0053] Therefore, the vehicle environment sensor 20 is the same as the sensor used in ADAS 9.

[0054] The multi-seat sensor 30 includes three components: tilt sensor 31, slide sensor 32 and pitch sensor 33, and is mounted in pairs on the seat 3.

[0055] For example, tilt sensor 31 detects the change in backrest angle relative to seat back 3B as tilt angle, and provides this information to controller 50; slide sensor 32 detects the sliding distance of seat cushion 3A moving on floor 5, and provides this information to controller 50; pitch sensor 33 is mounted on the hinge connection between seat cushion 3A and seat back 3B to detect the tilt angle of seat cushion 3A relative to seat back 3B as seat cushion pitch, and provides this information to controller 50.

[0056] The multi-seat motor 40 comprises three components: a tilt motor 41, a slide motor 42, and a pitch motor 43, which are mounted in pairs on the seat 3. In the present case, each of the motors 41, 42, and 43 preferably utilizes a stepper motor configured for easy adjustment of the RPM of the motor.

[0057] Each of the tilt motor 41, the slide motor 42, and the pitch motor 43 forms a rack and pinion together to adjust the tilt angle, seat pitch angle, and slide travel distance by using the rotational force of the motor.

[0058] As an example, a tilt motor 41 is mounted on the seat back 3B of the seat 3 and generates a rotational force to move the seat back 3B closer to or further away from the B-pillar 7, thereby changing the tilt angle in the fore-and-aft direction by changing the backrest angle. A sliding motor 42 is mounted on the seat cushion 3A of the seat 3 and generates a rotational force to move the seat cushion 3A relative to the floor 5, thereby changing the sliding position in the fore-and-aft direction (i.e., the vehicle's fore-and-aft direction) by changing the position of the seat cushion 3A. A pitch motor 43 is mounted on the hinge connection between the seat cushion 3A and the seat back 3B of the seat 3 and generates a rotational force to move the seat cushion 3A up or down relative to the seat back 3B, thereby increasing or decreasing the seat cushion tilt angle by changing the height tilt angle of the seat cushion 3A.

[0059] For this purpose, the tilt motor 41 and the pitch motor 43 transmit the rotational force of the motor to the seat back 3B of the seat 3 through rotating gears (e.g., spur gears, bevel gears, helical gears or worm gears), and the sliding motor 42 transmits the rotational force of the motor to the seat cushion 3A of the seat 3 through linear conversion gears (e.g., racks / pinions).

[0060] Therefore, the multi-seat sensor 30 consisting of tilt sensor 31, slide sensor 32 and pitch sensor 33, and the multi-seat motor 40 consisting of tilt motor 41, slide motor 42 and pitch motor 43, form a multi-degree-of-freedom seat mechanism for seat 3.

[0061] Therefore, the multi-degree-of-freedom seat mechanism also includes: determining the degrees of freedom of seat posture other than tilt / slide / seat pitch by representing the current posture of the seat using tilt angle, slide position, and seat cushion pitch angle. Thus, the multi-degree-of-freedom seat mechanism can significantly enhance the performance of the seat motor, determining the time required for pre-active safety seat (PSS) activation in the event of a collision hazard in vehicle 1, together with the difference between the current posture and the target posture of seat 3.

[0062] When a hazard signal is sent by the vehicle environment sensor 20, the controller 50, which is the PSS controller, controls the motor voltage or current of each of the multi-seat motors 40 to change the current seat posture of the seat 3 detected by the multi-seat sensor 30 to the target posture provided by the seat safety mapping 60.

[0063] To this end, the controller 50 receives vehicle environment sensor signals (a) and multi-seat sensor signals (b) as control data, outputs tilt motor output (d), slide motor output (e), and pitch motor output (f) as drive data, and is equipped with a memory to function as a central processing unit. The memory is used to execute actions to increase the speed of the pre-active safety seat (see reference). Figure 4 The control logic is stored as a program.

[0064] The seat safety mapping 60, which is a database (DB) of crash test results forming seat 3, includes a line graph of the backrest angle (X) - elevation angle (Y) of seat 3, wherein, through analysis of the database (DB), seat posture conditions include safe areas and dangerous areas.

[0065] The line graph of backrest angle (X) - elevation angle (Y) is set as a matching mapping for the detection tilt angle (i.e., backrest angle (X)) of seat backrest 3B and the seat cushion elevation angle (i.e., elevation angle (Y)) of seat cushion 3A.

[0066] Reference Figure 2 The controller 50 may be configured to include: a seat target posture setting unit 51 and a seat motor drive control unit 53.

[0067] As an example, the seat target posture setting unit 51 matches the detected tilt angle of the seat back 3B and the seat cushion elevation angle of the seat cushion 3A with the line graph of the backrest angle (X) - elevation angle (Y) of the seat safety mapping 60, and sets the seat target posture by extracting the difference between the current posture and the target posture of the seat 3 with the matching result.

[0068] As an example, the seat motor drive control unit 53 uses the P and I of PID control to control the motor voltage or current of each of the motors 41, 42, and 43 of the multiple seat motors 40. In this context, PID stands for Proportional (P), Integral (I), and Derivative (D).

[0069] While driving each of the drive motors 41, 42, and 43, the seat motor drive control unit 53 controls the voltage of each motor until the current seat posture changes to the target posture.

[0070] at the same time, Figures 3 to 8 This illustrates a method for changing the current posture of seat 3 to a target posture of seat 3 in the event of a dangerous collision with vehicle 1 by increasing the speed of the pre-safety seat system 10. In this case, the control entity is controller 50, and the controlled objects are each of the tilt motor 41, slide motor 42, and pitch motor 43 that constitute the multi-seat motor 40.

[0071] Reference Figure 3 For the method used to increase the speed of the pre-safety seat, the controller 50 performs the following steps: identifying collision hazards (S10), confirming the mapping and matching of seat posture hazards (S20), confirming the target seat posture (S30), and driving the multi-seat motor (S40).

[0072] As an example, collision hazard identification (S10) determines the degree of collision hazard between the driver's vehicle and adjacent vehicles based on information related to adjacent vehicles generated when detecting vehicle environment sensor information (S10-1).

[0073] Reference Figure 1 and Figure 4The vehicle environment sensor 20 performs vehicle environment sensor information detection (S10-1) by detecting the preceding vehicle 100 traveling in the front-rear and left-right directions of the vehicle 1 (the moving vehicle 1) using adjacent vehicle position information. The controller 50, when necessary, determines the position of the driver's vehicle, the positions of adjacent vehicles, and the distance between them based on the adjacent vehicle position information (transmitted by the vehicle environment sensor 20 using a Global Positioning System (GPS)). In the current case, the adjacent vehicle position information of the vehicle environment sensor 20 includes: distance to the colliding object, relative speed, and acceleration, and this information can be transmitted using a controller area network (CAN), Bluetooth, or wireless communication.

[0074] Reference Figure 5 Using the vehicle distance, the controller 50 confirms a collision hazard by classifying collision hazard detection (classified by collision hazard logic (e.g., Lateral Collision Avoidance Assist (LCA) and / or Rear Collision Avoidance Assist (BCA))) into Frontal Collision Warning (FCW) and Frontal Collision Avoidance Assist (FCA).

[0075] Therefore, controller 50 sets the partial braking and full braking processing of FCA in the FCW collision warning to the PSS operable segment.

[0076] As an example, the confirmation step (S20) of mapping and matching seat posture danger confirms the target seat posture based on the current seat posture information of the seat 3 of vehicle 1 generated when detecting multi-seat sensor information (S20-1).

[0077] Reference Figure 1 The multi-seat sensor 30 detects the tilt angle of the seat back 3B of the tilt sensor 31, the sliding distance of the seat cushion 3A of the sliding sensor 32, and the seat cushion tilt angle of the seat cushion 3A of the pitch sensor 33, and provides these detection values ​​to the controller 50 via CAN.

[0078] Therefore, the controller 50 uses the detected values ​​of the seat 3's tilt angle, sliding distance, and seat cushion tilt angle as the current seat position information, and determines whether the seat 3 is in a safe area or a dangerous area by matching the current seat position information with the seat safety mapping 60.

[0079] As an example, the confirmation of the target seat posture (S30) uses the tilt angle, sliding distance and seat cushion tilt angle of the seat 3 in the current state (i.e., collision hazard situation) to confirm the target seat posture in the current seat posture.

[0080] Reference Figure 2 The controller 50 performs a matching between the seat target posture setting unit 51 and the seat safety mapping 60 to confirm the seat target posture.

[0081] Reference Figure 6 Based on the tilt, sliding, and pitch degrees of freedom of seat 3 (represented by a line graph of backrest angle (X) - pitch angle (Y), the seat safety map 60 is configured such that the occurrence / non-occurrence of a submarine scenario includes hazardous and safe zones related to the seat attitude. In the current situation, the hazardous / safe zones are determined using crash test or analysis data for each attitude of seat 3.

[0082] As an example, the data mapping process for the seat safety mapping 60 used to obtain the target seat posture and the time required for pre-active safety seat (PSS) under a collision hazard is as follows.

[0083] First, when the target posture candidates for the safe zone of posture "O" which belongs to the current dangerous zone of the seat are assumed to be "A", "B" and "C", "A" can be matched as the case of moving to the safe zone by adjusting only the seat cushion tilt angle in the current posture, "B" can be matched as the case of moving to the safe zone by adjusting both the seat cushion tilt angle and the backrest angle in the current posture, and "C" can be matched as the case of moving to the safe zone by adjusting only the backrest angle in the current posture.

[0084] Therefore, the time required for the PSS to achieve the target seat posture relative to any of "A", "B", and "C" in the "O" posture can be extracted as follows. In the current case, "tilt A" represents the pitch angle of posture A, "V_recline" represents the operating speed of the tilt motor 41, "V_slide" represents the operating speed of the slide motor 42, and "V_tilt" represents the operating speed of the pitch motor 43, and the motor speed is expressed as revolutions per minute (RPM) as the motor rotation speed.

[0085] (1) Determine the equation for the time required for PSS to change from "O" to "A".

[0086] ΔT_A=(tilt_A–tilt_O) / V_tilt

[0087] tilt indicates pitch or angle;

[0088] (2) Determine the equation for the time required for PSS to change from "O" to "B".

[0089] ΔT_B=max{(backrest angle_B–backrest angle_O) / (V_slide+V_recline),(tilt_B–tilt_O) / (V_tilt)}

[0090] The backrest angle indicates the angle of the backrest.

[0091] (2) Determine the equation for the time required for PSS to change from "O" to "C".

[0092] ΔT_C=(backrest angle_C–backrest_O) / (V_slide+V_recline).

[0093] Therefore, "ΔT_A / ΔT_B / ΔT_C" represents the relationship between "ΔT_B<ΔT_C" and "ΔT_B<ΔT_A", which shows that the motor runs for the shortest time when the "O" posture changes to the "B" posture.

[0094] Therefore, the time required for PSS can be minimized by simultaneously driving and controlling the tilt motor 41 and the slide motor 42 in a dangerous collision situation, similar to "ΔT_B", so as to first approach the target seat posture and then finally reach the target seat posture by controlling the drive of the pitch motor 43.

[0095] As an example, the driving of the multi-seat motor (S40) includes: adjusting the seat back angle (S50, S60), moving the position of the seat cushion (S70, S80), and adjusting the seat cushion tilt (S90, S100).

[0096] When adjusting the seat back angle (S50, S60), moving the seat cushion position (S70, S80), and adjusting the seat cushion tilt (S90, S100), refer to Figure 6 The controller 50 controls the adjustment of the seat back angle (S50, S60) and the movement of the seat cushion position (S70, S80) simultaneously according to "ΔT_B" for minimizing the time required for PSS, thereby driving the tilt motor 41 and the sliding motor 42 that constitute the multi-seat motor 40 together.

[0097] Therefore, the drives of the tilt motor 41, slide motor 42 and pitch motor 43 that constitute the multi-seat motor 40 can be controlled individually one after another, or controlled by two or three combinations, to change the posture to the safe area closest to the current posture of the seat 3.

[0098] The adjustment of the seat back angle (S50, S60) includes confirming whether the tilt does not meet the target (S50) and executing tilt motor drive control (S60). The movement of the seat cushion position (S70, S80) includes confirming whether the sliding does not meet the target (S70) and executing sliding motor drive control (S80). In the current situation, confirming whether the tilt does not meet the target (S50) and confirming whether the sliding does not meet the target (S70) are based on... Figure 6 The value is confirmed by the matching result of the seat safety mapping 60 shown.

[0099] Figure 7 The controller 50 is shown to simultaneously perform the adjustment of the seat back angle (S50, S60) and the movement of the seat cushion position (S70, S80).

[0100] As shown in the figure, relative to the target seat posture required to escape the danger zone and enter the safe zone (the matching result in the seat safety mapping 60), the controller 50 sends the tilt motor output (d) of the seat motor drive control unit 53 to the tilt motor 41, and at the same time, sends the slide motor output (e) to the slide motor 42.

[0101] Therefore, by receiving the output (d) of the tilt motor, the tilt motor 41 is driven to generate a rotational force, and the rotational force of the motor is transmitted to the seat back 3B of the seat 3 through a rotating gear (e.g., a spur gear, a bevel bearing, a helical gear, or a worm gear), so that the tilt angle of the seat back 3B is small. The reduction in the tilt angle makes the back angle (X) of the seat 3 narrower, so that the upper body of the passenger is in close contact with the seat back 3B, thereby reducing the movement of the passenger due to impact and improving safety.

[0102] Simultaneously, the sliding motor 42 is driven by receiving the output (e) of the sliding motor to generate rotational force, and the rotational force of the motor is transmitted to the seat cushion 3A of the seat 3 through a linear conversion gear (e.g., rack / pinion), which increases the sliding movement position of the seat cushion 3A. The increase in the sliding movement position further moves the seat 3 forward, so that the lower body of the passenger is in close contact with the seat cushion 3A, thereby reducing the movement of the passenger due to impact and improving safety.

[0103] As described above, the pre-active safety seat system 10 simultaneously controls the tilt motor 41 and slide motor 42 of the multi-seat motor 40 to minimize the time required for PSS, thereby accelerating the arrival at the target seat posture of the seat 3. Therefore, it has been demonstrated that in hazardous collision situations, during the PSS operable phase (see reference...) Figure 5 During this period, passenger safety can be enhanced.

[0104] The seat cushion tilt adjustment (S90, S100) includes confirming whether the seat cushion tilt does not meet the target (S90) and executing seat cushion tilt motor drive control (S100). In the current situation, confirming whether the seat cushion tilt does not meet the target (S90) is based on the seat safety mapping 60 (e.g., Figure 6 The value confirmed is the matching result shown.

[0105] Figure 8 The controller 50 is shown performing seat cushion tilt adjustment (S90, S100).

[0106] As shown in the figure, relative to the target seat posture required to escape the danger zone and enter the safe zone (the matching result in the seat safety mapping 60), the controller 50 sends the pitch motor output (f) of the seat motor drive control unit 53 to the pitch motor 43.

[0107] Therefore, by receiving the output (f) of the pitch motor, the pitch motor 43 is driven to generate rotational force, and the rotational force of the motor is transmitted to the seat cushion 3A of the seat 3 through a rotating gear (e.g., a spur gear, a bevel bearing, a helical gear, or a worm gear), so that the seat cushion 3A has a small seat cushion tilt angle. The reduction of the seat cushion tilt angle makes the tilt angle (Y) of the seat 3 narrower, so that the lower body of the passenger is in a lower posture, thereby reducing the movement of the passenger due to impact and further improving safety.

[0108] As described above, it has been demonstrated that the pre-active safety seat system 10 controls the pitch motor 43 after minimizing the time required for PSS by driving the tilt motor 41 and slide motor 42 of the multi-seat motor 40, thereby ensuring that, during the dangerous collision phase, PSS is operational (see reference). Figure 5 During this period, passenger safety will be further enhanced.

[0109] As described above, according to an exemplary embodiment of the present invention, the pre-active safety seat system 10 applied to vehicle 1 implements a method for increasing the speed of the pre-active safety seat. This method identifies a danger zone by matching the tilt angle, sliding movement position, and seat cushion pitch angle detected by each of the multiple sensors of the multi-seat sensor 30 in a dangerous collision environment (detected by the vehicle environment sensor 20 of ADAS 9) with the seat safety mapping 60, and by combining and simultaneously controlling the multiple motors of the multi-seat motor 40 for the seat target posture of seat 3 by the controller 50 to transfer the danger zone to a safe zone, thereby shortening the time required for the pre-active safety seat (PSS) to achieve the seat target posture during the pre-active safety seat (PSS) operable segment before a collision according to the hazard detection.

[0110] Additionally, terms related to control devices (e.g., "controller," "control unit," "control device," or "control module," etc.) refer to hardware devices, including a memory and a processor configured to execute one or more steps interpreted as an algorithmic structure. The memory stores algorithmic steps, and the processor executes these steps to perform one or more processes of methods according to various exemplary embodiments of the present invention. Control devices according to exemplary embodiments of this disclosure can be implemented using non-volatile memory and a processor configured to store algorithms for controlling the operation of various components of a vehicle or data regarding software commands for executing algorithms, and the processor configured to perform the operations described above using the data stored in the memory. The memory and processor can be separate chips. Alternatively, the memory and processor can be integrated into a single chip. The processor can be implemented as one or more processors. The processor can include various logic circuits and operational circuits that can process data according to a program provided from the memory and generate control signals based on the processing results.

[0111] The control device may be at least one microprocessor operated by a predetermined program, which may include a series of commands for executing methods included in the foregoing various exemplary embodiments of the present invention.

[0112] The aforementioned invention can also be embodied as computer-readable code on a computer-readable recording medium. A computer-readable recording medium is any data storage device that stores data that can subsequently be read by a computer system. Examples of computer-readable recording media include hard disk drives (HDDs), solid-state drives (SSDs), silicon disk drives (SDDs), read-only memory (ROM), random access memory (RAM), CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, and implementations as carrier waves (e.g., transmission over the Internet).

[0113] In various exemplary embodiments of the present invention, the above operations can be performed by a control device, and the control device can be configured as a plurality of control devices or an integrated single control device.

[0114] In various exemplary embodiments of the present invention, the control device may be implemented in hardware or software, or in a combination of hardware and software.

[0115] For ease of interpretation and precise definition of the appended claims, the terms “upper,” “lower,” “inner,” “outer,” “up,” “lower,” “upward,” “downward,” “front,” “back,” “back,” “inner side,” “outer side,” “inward,” “outer,” “internal,” “external,” “inner,” “outer,” “forward,” and “backward” are used to describe features of the exemplary embodiments with reference to the positions of the features shown in the figures. It should also be understood that the term “connection” or its derivatives refer to both direct and indirect connections.

[0116] For purposes of illustration and description, specific exemplary embodiments of the invention have been described above. They are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed, and it will be apparent that various modifications and variations can be made in accordance with the foregoing teachings. The exemplary embodiments chosen and described are intended to explain certain principles and practical applications of the invention, enabling those skilled in the art to make and utilize various exemplary embodiments, as well as alternatives and modifications, of the invention. The scope of the invention is intended to be defined by the appended claims and their equivalents.

Claims

1. A pre-active safety seat system for a vehicle, the pre-active safety seat system comprising: The vehicle environment sensor is configured to detect dangerous collision information of adjacent vehicles while the vehicle is in motion. Multiple seat sensors are configured to detect at least one of the seat tilt angle, sliding movement position, and seat cushion tilt angle as the current seat posture of the seat in the vehicle. A multi-seat motor is connected to the seat and configured to generate a motor driving force and apply the motor driving force to the seat such that the current seat posture of the seat is changed to a target seat posture by changing at least one of the seat tilt angle, sliding position, and seat cushion tilt angle. as well as A controller, electrically connected to the vehicle environment sensors, the multi-seat sensors, and the multi-seat motors, is configured to: in the event of a dangerous collision situation confirmed by the controller based on the dangerous collision situation information, control the driving force of the motors to adjust the current seat posture of the seats to the target seat posture. The multi-seat sensors include: A tilt sensor, mounted on the seat back of the seat, detects the tilt angle; and A sliding sensor is installed on the seat cushion to detect the sliding movement of the seat cushion. The controller is configured to simultaneously control the adjustment of the seat back angle and the movement of the seat cushion position, thereby shortening the time required for the PSS of the target posture of the seat during the pre-active safety seat PSS operable segment before a vehicle collision is detected based on hazard detection.

2. The pre-active safety seat system for vehicles according to claim 1, in, The vehicle environment sensor is a component of the Advanced Driver Assistance System (ADAS).

3. The pre-active safety seat system for a vehicle according to claim 1, in, The multiple seat sensors are mounted on the seat, and The multi-seat sensor also includes: A pitch sensor is installed on the connection between the seat cushion and the seat back to detect the seat cushion pitch angle relative to the seat back.

4. The pre-active safety seat system for a vehicle according to claim 1, in, The multi-seat motor is mounted on the seat, and The multi-seat motor includes: A tilt motor is mounted on the seat back of the seat to increase or decrease the tilt angle; A sliding motor, mounted on the seat cushion of the seat, is used to change the sliding position; and A pitch motor is mounted on the hinge connection between the seat cushion and the seat back to increase or decrease the seat cushion pitch angle relative to the seat back.

5. The pre-active safety seat system for a vehicle according to claim 4, in, The controller is connected to a seat safety map, which divides dangerous and safe zones by the seat back angle and recline angle. The danger zone is the area where the current seat posture needs to be changed to the target seat posture, and Specifically, when the controller determines that the tilt angle does not meet the target value of the safe zone, the controller is configured to: change the tilt angle by driving a tilt motor mounted on the seat. Specifically, when the controller determines that the sliding movement position does not meet the target value of the safety zone, the controller is configured to: move the sliding movement position by driving a sliding motor mounted on the seat, and When the controller determines that the seat cushion tilt angle does not meet the target value of the safe area, the controller is configured to change the height of the seat cushion tilt angle by driving a pitch motor installed on the seat.

6. The pre-active safety seat system for a vehicle according to claim 1, in, The controller is connected to a seat safety map, which divides dangerous and safe zones by the seat back angle and recline angle. The danger zone is the matching portion where the current seat posture needs to be changed to the target seat posture.

7. The pre-active safety seat system for a vehicle according to claim 6, in, The controller is configured to match the seat cushion tilt angle with the backrest angle, and simultaneously match the tilt angle based on the sliding movement position with the backrest angle. As a result of the matching, the controller controls the multiple seat motors to generate motor outputs to change the current seat posture to the target seat posture.

8. The pre-active safety seat system for a vehicle according to claim 7, in, The controller is configured to classify the motor outputs into: tilt motor outputs for changing the tilt angle, slide motor outputs for changing the sliding position, and pitch motor outputs for changing the seat cushion tilt angle.

9. The pre-active safety seat system for a vehicle according to claim 8, in, The controller simultaneously sends the outputs of the tilting motor and the sliding motor to the multi-seat motor.

10. A method for increasing the pre-active safety seat speed of a vehicle, the method comprising the steps of: While the vehicle is in motion, the controller confirms the collision risk of adjacent vehicles detected by the Advanced Driver Assistance System (ADAS). The controller matches the mapping, which determines the current seat posture by matching at least one of the seat tilt angle, sliding movement position and seat cushion tilt angle detected by multiple seat sensors installed on the seat with a seat safety mapping, and the mapping identifies the current seat posture as a danger zone. The controller determines changes in at least one of the seat's tilt angle, sliding position, and seat cushion tilt angle. as well as Prior to a vehicle collision detected by hazard detection, during the pre-active safety seat (PSS) operable segment, the controller drives multiple seat motors mounted on the seat. These motors, electrically connected to the controller, change the current seat posture to a target posture within a safe area. The steps for driving the multi-seat motor include: Adjusting the angle of the seat back to change the tilt angle; and The position of the seat cushion is moved, wherein the seat cushion causes the sliding movement position to move, and The controller simultaneously adjusts the seat back angle and moves the seat cushion, thereby shortening the time required for the pre-active safety seat PSS to achieve the target posture of the seat.

11. The method according to claim 10, in, Relative to the target seat posture, the controller is configured to set the posture of the safest region found by analyzing the seat safety mapping when the seat is in a dangerous area as the target posture.

12. The method according to claim 10, wherein, The steps for matching maps include: The tilt angle of the sliding movement position will be matched with the backrest angle of the seat safety mapping; and As a result of matching the seat cushion tilt angle to the tilt angle of the seat safety mapping, the danger zone and safe zone of the current seat posture are identified.

13. The method according to claim 10, wherein, The steps for driving the multi-seat motor also include: Adjust the seat cushion tilt, which changes the tilt angle of the seat cushion.

14. The method according to claim 13, in, The multi-seat motor includes a tilting motor, and The adjustment of the seat back angle includes: Confirm whether the tilt angle does not meet the target value of the safety zone; and When the controller determines that the tilt angle does not meet the target value of the safety zone, the controller changes the tilt angle by driving the tilt motor installed on the seat.

15. The method according to claim 13, in, The multi-seat motor includes a sliding motor, and The movement of the seat cushion includes: Confirm whether the sliding position does not meet the target value of the safe area; and When the controller determines that the sliding movement position does not meet the target value of the safety zone, the controller moves the sliding movement position by driving the sliding motor installed on the seat.

16. The method according to claim 13, in, The multi-seat motor includes a pitch motor, and The adjustment of the seat cushion tilt includes: Confirm whether the seat cushion tilt angle does not meet the target value of the safe zone; and When the controller determines that the seat cushion tilt angle does not meet the target value of the safe zone, the controller changes the height of the seat cushion tilt angle by driving the tilt motor installed on the seat.

17. A non-transitory computer-readable storage medium having a program recorded thereon for performing the method of claim 10.

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