Zero-gravity seat framework driving and passive safety method

Abstract

The invention relates to a zero-gravity seat framework driving and passive safety method. The method comprises the steps that S1, the sitting posture of a zero-gravity seat is controlled; s2, carrying out passive safety control on the zero-gravity seat in a zero-gravity posture; step S21, when the vehicle is collided or the vehicle radar early warns that the collision is about to occur, a seat controller is utilized to confirm the current sitting posture of the seat; s22, when the seat controller in the step S21 detects that the seat is in the zero-gravity posture, the seat controller is used for controlling a seat cushion rapid return mechanism to rapidly return to the standard posture, a cushion air bag is ignited, and a secondary locking mechanism is used for preventing the seat cushion rapid return mechanism from rebounding; s23, when the seat controller in the step S21 detects that the seat is in the standard posture, the seat cushion quick return mechanism is not started; the vehicle passive safety device has the advantage that the vehicle passive safety device can be ensured to play a role by quickly returning the seat in the zero-gravity posture.

Description

Technical Field

[0001] The invention relates to the technical field of zero-gravity seats, and in particular to a zero-gravity seat frame driving and passive safety method. Background Art

[0002] Today's zero-gravity seats are innovative comfort seats. When using zero-gravity seats, passengers can adjust the seat back and seat cushion at a large angle to achieve a large-angle reclining position for passengers, providing a more comfortable sitting position. However, due to the large angle of the backrest and seat cushion of zero-gravity seats, passengers are in a lying position, and the adjustment range of the seat belt is limited. In an emergency, the restraint force of the seat belt on the body is not enough to fully protect the passengers, posing a safety hazard. Summary of the invention

[0003] In view of the above problems, the purpose of the present invention is to provide a zero-gravity seat frame driving and passive safety method, which is used to optimize the occupant injury after the zero-gravity posture collision of the automobile seat, so as to overcome the shortcomings of the above-mentioned prior art.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] A zero-gravity seat frame driving and passive safety method specifically comprises the following steps:

[0006] Step S1: zero-gravity chair sitting posture control;

[0007] Step S11: When the occupant adjusts the zero-gravity posture, the seat controller is used to confirm the current seat posture and the zero-gravity posture adjustment or the standard posture adjustment is performed according to the current sitting posture;

[0008] Step S12: When the seat controller receives the zero gravity posture adjustment, the seat controller is used to control the coordinated action of multiple drive motors of the seat to adjust the seat to the zero gravity posture;

[0009] Step S13: When the seat controller receives the standard posture adjustment, the seat controller is used to control multiple driving motors of the seat to coordinately adjust the seat to the standard posture;

[0010] Step S2: Passive safety control of the zero-gravity seat in a zero-gravity attitude;

[0011] Step S21: when the vehicle collides or the vehicle radar warns that a collision is about to occur, the current seat posture is confirmed using the seat controller;

[0012] Step S22: when the seat controller in step S21 detects that the seat is in a zero-gravity posture, the seat controller is used to control the seat cushion quick return mechanism to quickly return to a standard posture, and the seat cushion airbag is detonated, and a secondary locking mechanism is used to prevent the seat cushion quick return mechanism from rebounding;

[0013] Step S23: When the seat controller in step S21 detects that the seat is in the standard posture, the seat cushion quick return mechanism is not started.

[0014] As a preferred embodiment of the present invention, step S22 also includes the following steps:

[0015] Step S221: Use the angle adjustment drive motor of the seat cushion quick return mechanism to control the seat cushion adjuster. The seat cushion quick return mechanism plays the role of a connecting rod, and forms a four-bar mechanism with the seat cushion and the support seat, so that the rotational movement is converted into the seat cushion angle lifting; the travel stop pin and the lower connecting plate of the adjuster jointly realize the seat cushion angle travel limit, the energy absorption locking mechanism triggers the unlocking, and the detonator drives the pull wire to pull the cam locking plate, and the cam locking plate drives the lock tongue to unlock, and the unlocking bracket is separated from the rotating bracket, so that the core shaft of the energy absorption friction disk rotates, triggering the damping plate and the friction disk shell to rub, so as to realize the energy absorption process. Returning to the design posture of the seat cushion, the occupant is protected once, through the locking block installed on the unlocking bracket, the locking frame installed on the synchronous cross tube, the holding locking pin installed on the locking block, the avoidance lock hole opened on the side of the lock frame, and the holding spring for holding the locking pin. The holding locking pin is pressed against the end face of the locking block by the holding spring. Before the seat cushion collides, the locking block, the holding spring and the holding locking pin move together. After the seat cushion collides, the locking block rotates with the energy absorbing friction disk, and the holding locking pin is pressed into the locking groove of the locking block by the holding spring. The holding locking pin blocks the energy absorbing friction disk from rotating by inertia, so that the energy absorbing friction disk stops working in the reverse direction due to the inertia force, thereby providing secondary protection for the occupant.

[0016] The advantages and positive effects of the present invention are:

[0017] 1. The present invention aims to solve the problem that passive safety devices such as seat belts cannot effectively protect occupants when seats collide in a zero-gravity posture. The present invention ensures that the passive safety devices of the vehicle can function by quickly returning the seats in a zero-gravity posture.

[0018] 2. The present invention adds a reverse locking mechanism (secondary locking) to the seat cushion quick return mechanism to prevent rebound, thereby avoiding secondary damage to the occupant caused by the inertia caused by the rebound of the seat cushion after the seat cushion is returned after a large-angle collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the zero-gravity skeleton in the design posture of the present invention.

[0020] Figure 2 It is a schematic diagram of the zero-gravity posture skeleton in the present invention.

[0021] Figure 3 It is a schematic diagram of the frame of the seat cushion after the collision in the present invention.

[0022] Figure 4 It is a schematic diagram of the initial driving position of the angle adjustment motor in the present invention.

[0023] Figure 5 It is a schematic diagram of the zero gravity posture of the angle adjustment motor in the present invention.

[0024] Figure 6 It is an exploded view of the connection position of the angle adjuster in the present invention.

[0025] Figure 7 It is an exploded view of the seat cushion quick return mechanism of the present invention.

[0026] Figure 8 It is a schematic diagram of the detonator of the present invention before being unlocked.

[0027] Fig. 9 It is a schematic diagram of the detonator after being unlocked in the present invention.

[0028] Fig.10 It is an exploded view of the energy absorbing friction disk in the present invention.

[0029] Fig.11 It is a schematic diagram of the energy absorbing friction disk in the present invention.

[0030] Fig.12 It is a schematic diagram of the installation of the seat cushion airbag in the present invention.

[0031] Fig.13 It is an exploded view of the installation of the seat cushion airbag in the present invention.

[0032] Fig.14 It is a schematic diagram of the secondary locking mechanism in the present invention.

[0033] Fig.15 It is an exploded view of the secondary locking mechanism in the present invention.

[0034] Fig.16 It is a flow chart of the present invention.

[0035] Figure numerals: seat cushion quick return mechanism 1, angle adjustment drive motor 2, seat cushion angle adjuster 3, seat cushion 4, support seat 5, detonator 6, pull wire 7, cam locking plate 8, holding spring 9, unlocking bracket 10, rotating bracket 11, energy absorbing friction disc 12, core shaft 13, damping plate 14, friction disc housing 15, locking block 16, lock frame 17, holding lock pin 18. DETAILED DESCRIPTION

[0036] In the following description, for the purpose of illustration, in order to provide a comprehensive understanding of one or more embodiments, many specific details are set forth. However, it is apparent that these embodiments may also be implemented without these specific details. In other examples, for ease of describing one or more embodiments, known structures and devices are shown in the form of block diagrams.

[0037] See also Figure 1-16 This embodiment provides a zero-gravity seat frame driving and passive safety method, which specifically includes the following steps:

[0038] Step S1: zero-gravity chair sitting posture control;

[0039] Step S11: When the occupant adjusts the zero-gravity posture, the seat controller is used to confirm the current seat posture and the zero-gravity posture adjustment or the standard posture adjustment is performed according to the current sitting posture;

[0040] Step S12: When the seat controller receives the zero gravity posture adjustment, the seat controller is used to control the coordinated action of multiple drive motors of the seat to adjust the seat to the zero gravity posture;

[0041] Step S13: When the seat controller receives the standard posture adjustment, the seat controller is used to control multiple driving motors of the seat to coordinately adjust the seat to the standard posture;

[0042] Step S2: Passive safety control of the zero-gravity seat in a zero-gravity attitude;

[0043] Step S21: when the vehicle collides or the vehicle radar warns that a collision is about to occur, the current seat posture is confirmed using the seat controller;

[0044] Step S22: When the seat controller in step S21 detects that the seat is in a zero-gravity posture, the seat controller is used to control the seat cushion quick return mechanism 1 to quickly return to a standard posture, and to ignite the seat cushion airbag, and a secondary locking mechanism is used to prevent the seat cushion quick return mechanism 1 from rebounding;

[0045] Step S221: Use the angle adjustment drive motor 2 of the seat cushion quick return mechanism 1 to control the seat cushion adjuster 3. The seat cushion quick return mechanism 1 plays the role of a connecting rod, and forms a four-bar mechanism with the seat cushion 4 and the support seat 5, so that the rotational movement is converted into the seat cushion angle lifting; the travel stop pin and the lower connecting plate 6 of the adjuster jointly realize the seat cushion angle travel limit, and the energy absorption locking mechanism of the seat cushion quick return mechanism 1 is triggered to unlock, and the detonator 6 drives the pull wire 7 to pull the cam locking plate 8, and the cam locking plate 9 drives the lock tongue to unlock, and the unlocking bracket 10 is separated from the rotating bracket 11, so that the core shaft 13 of the energy absorption friction disk 12 rotates, triggering the damping plate 14 to rub against the friction disk shell 15, so as to realize the energy absorption process. Returning to the design posture of the seat cushion, the occupant is protected once by the lock block 16 installed on the unlocking bracket 10, the lock frame 17 installed on the synchronous cross tube, the top holding lock pin 18 installed on the lock block 16, the avoidance lock hole opened on the side of the lock frame 16, and the top holding spring 9 for holding the lock pin 18. The top holding lock pin 18 is pressed against the end face of the lock block 15 by the top holding spring 9. Before the seat cushion collides, the lock block 16, the top holding spring 9 and the top holding lock pin 18 move together. After the seat cushion collides, the lock block 16 rotates with the energy absorbing friction disk 9, and the top holding lock pin 18 is pressed into the locking groove of the lock block 16 by the top holding spring 9. The top holding lock pin 18 blocks the energy absorbing friction disk 9 from rotating by inertia, so that the energy absorbing friction disk 12 stops working in the reverse direction due to the inertia force, thereby providing secondary protection for the occupant.

[0046] Step S23: When the seat controller in step S21 detects that the seat is in the standard posture, the seat cushion quick return mechanism is not started.

[0047] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A zero-gravity seat frame driving and passive safety method, characterized in that: The following steps are involved: Step S1: zero gravity chair sitting posture control; Step S11: When the occupant adjusts the zero-gravity posture, the seat controller is used to confirm the current seat posture and the zero-gravity posture adjustment or the standard posture adjustment is performed according to the current sitting posture; Step S12: When the seat controller receives the zero gravity posture adjustment, the seat controller is used to control the coordinated action of multiple drive motors of the seat to adjust the seat to the zero gravity posture; Step S13: When the seat controller receives the standard posture adjustment, the seat controller is used to control multiple driving motors of the seat to coordinately adjust the seat to the standard posture; Step S2: Zero-Gravity Seat Passive safety control in zero-G attitude; Step S21: when the vehicle collides or the vehicle radar warns that a collision is about to occur, the current seat posture is confirmed using the seat controller; Step S22: when the seat controller in step S21 detects that the seat is in a zero-gravity posture, the seat controller is used to control the seat cushion quick return mechanism to quickly return to a standard posture, and the seat cushion airbag is detonated, and a secondary locking mechanism is used to prevent the seat cushion quick return mechanism from rebounding; Step S23: When the seat controller in step S21 detects that the seat is in the standard posture, the seat cushion quick return mechanism is not started.

2. A zero-gravity seat frame driving and passive safety method according to claim 1, characterized in that: Step S22 also includes the following steps: Step S221: Use the angle adjustment drive motor of the seat cushion quick return mechanism to control the seat cushion adjuster. The seat cushion quick return mechanism plays the role of a connecting rod, and forms a four-bar mechanism with the seat cushion and the support seat, so that the rotational movement is converted into the seat cushion angle lifting; the travel stop pin and the lower connecting plate of the adjuster jointly realize the seat cushion angle travel limit, the energy absorption locking mechanism triggers the unlocking, and the detonator drives the pull wire to pull the cam locking plate, and the cam locking plate drives the lock tongue to unlock, and the unlocking bracket is separated from the rotating bracket, so that the core shaft of the energy absorption friction disk rotates, triggering the damping plate and the friction disk shell to rub, so as to realize the energy absorption process. Returning to the design posture of the seat cushion, the occupant is protected once, through the locking block installed on the unlocking bracket, the locking frame installed on the synchronous cross tube, the holding locking pin installed on the locking block, the avoidance lock hole opened on the side of the lock frame, and the holding spring for holding the locking pin. The holding locking pin is pressed against the end face of the locking block by the holding spring. Before the seat cushion collides, the locking block, the holding spring and the holding locking pin move together. After the seat cushion collides, the locking block rotates with the energy absorbing friction disk, and the holding locking pin is pressed into the locking groove of the locking block by the holding spring. The holding locking pin blocks the energy absorbing friction disk from rotating by inertia, so that the energy absorbing friction disk stops working in the reverse direction due to the inertia force, thereby providing secondary protection for the occupant.

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