A suspension damping structure suitable for three-row zero-gravity seats

Abstract

A suspension damping structure suitable for three-row zero-gravity seats, comprising an upper mounting framework, a lower fixed seat, a cross-arm assembly, an air spring, a magneto-rheological damper, an acceleration sensor, a position sensor, and a controller; the lower fixed seat is provided with a mounting plate near the rear end; the inner arm of the cross-arm assembly is provided with a connecting plate, the front end of the outer arm is provided with a lower connecting frame, and the front end of the connecting plate is provided with an upper connecting frame; the air spring is arranged on the mounting plate and connected to the connecting plate at the upper end; the magneto-rheological damper is arranged between the upper connecting frame and the lower connecting frame; the acceleration sensor is arranged at the front end of the upper mounting framework and the lower fixed seat; the position sensor is arranged near the rear end of the suspension damping structure; and the controller is used for adjusting the air spring according to the data monitored by the position sensor and adjusting the damping coefficient of the magneto-rheological damper according to the data monitored by the acceleration sensor. The structure significantly improves the ride comfort in the inclined state through the cooperative matching of the air spring and the magneto-rheological damper.

Description

Technical Field

[0001] This utility model belongs to the field of automotive seat technology and relates to a suspension and shock absorption structure suitable for three-row zero-gravity seats. Background Technology

[0002] In zero-gravity seats, the weight distribution of occupants changes significantly when the seat is tilted at a large angle. Traditional shock absorption solutions struggle to adapt to the shift in the center of gravity and changes in vibration transmission characteristics caused by these posture changes, thus affecting comfort. Therefore, it is necessary to design a novel suspension and shock absorption structure. Summary of the Invention

[0003] In view of the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a suspension shock absorption structure suitable for three rows of zero-gravity seats. Under zero-gravity large tilt angle posture, this structure can effectively suppress multi-directional vibration through the coordinated cooperation of air springs and magnetorheological dampers, and significantly improve the riding comfort in the tilt state.

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

[0005] A suspension damping structure suitable for three-row zero-gravity seats includes an upper mounting frame, a lower fixed seat, a crossarm assembly, an air spring, a magnetorheological damper, an acceleration sensor, a position sensor, and a controller. The lower fixed seat has a mounting plate near its rear end. The inner arm of the crossarm assembly has a connecting plate opposite the mounting plate, and the front end of the connecting plate has an upper connecting frame near the center. The front end of the outer arm of the crossarm assembly has a lower connecting frame near the center. The air spring is mounted on the mounting plate and its upper end is connected to the connecting plate. The magnetorheological damper is positioned between the upper and lower connecting frames. Two acceleration sensors are used, one at the front end of the upper mounting frame and the other at the front end of the lower fixed seat. The position sensor is mounted on the inner or outer arm, near the rear end of the suspension damping structure. The controller adjusts the air spring based on data monitored by the position sensor and adjusts the damping coefficient of the magnetorheological damper based on data monitored by the acceleration sensor.

[0006] As a preferred embodiment of this utility model, the inner arm and outer arm are arranged in a cross configuration. The upper end of the inner arm is rotatably connected to the front end of the upper mounting frame, and the lower end of the inner arm is rotatably connected to the rear end of the lower fixed seat. The upper end of the outer arm is rotatably connected to the rear end of the upper mounting frame, and the lower end of the outer arm is rotatably connected to the front end of the lower fixed seat. The intersection of the inner arm and the outer arm is rotatably connected by a rotating shaft.

[0007] As a preferred embodiment of this invention, the air spring is connected to an air source via a pipeline, and the pipeline is equipped with an air control valve.

[0008] Advantages and beneficial effects of this utility model:

[0009] (1) The suspension damping structure provided by this utility model can effectively suppress multi-directional vibration and significantly improve the riding comfort in the tilted state by cooperating with the air spring and the magnetorheological damper in a zero-gravity large tilt angle posture.

[0010] (2) This utility model reflects the effective load and center of gravity under posture changes by using displacement data between the upper mounting frame and the lower fixed seat, and precisely adjusts the air spring according to the data to ensure that the seat can accurately maintain the set suspension height at any tilt angle and avoid posture changes from interfering with the seat.

[0011] (3) In the process of vehicle driving, the damping coefficient of the magnetorheological damper is dynamically adjusted according to the acceleration data. The dynamic damping adjustment height can adapt to the load center of gravity shift and vibration characteristics change caused by zero gravity attitude change, and the suspension stability is excellent. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0013] Figure 1 A simplified diagram of the suspension and shock absorption structure for three rows of zero-gravity seats provided by this utility model;

[0014] Figure 2 This is a schematic diagram of a seat mounted on a suspension damping structure.

[0015] Figure 3 This is an isometric view of the suspension damping structure of this utility model;

[0016] Figure 4 This is a side view of the suspension damping structure of this utility model;

[0017] Figure 5 This is a schematic diagram showing the installation location of the air spring;

[0018] Figure 6 This is a schematic diagram showing the installation location of the magnetorheological damper. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] like Figures 1 to 6As shown, this embodiment provides a suspension and shock absorption structure suitable for three-row zero-gravity seats, including an upper mounting frame 1, a lower fixed seat 2, a cross arm assembly 3, an air spring 4, a magnetorheological damper 5, an acceleration sensor 6, a position sensor 7, and a controller; wherein, the lower fixed seat 2 is provided with a mounting plate 201 near the rear end; the cross arm assembly 3 includes an inner arm 31 and an outer arm 32, which are arranged crosswise, the upper end of the inner arm 31 is rotatably connected to the front end of the upper mounting frame 1, and the lower end of the inner arm is rotatably connected to the rear end of the lower fixed seat 2. The upper end of the outer arm 32 is rotatably connected to the rear end of the upper mounting frame 1, and the lower end of the outer arm is rotatably connected to the front end of the lower fixed seat 2. The inner arm 31 and the outer arm 32 are rotatably connected by a pivot at their intersection. A connecting plate 310 is provided on the inner arm 31 at a position opposite to the mounting plate 201. An upper connecting frame 311 is provided at the front end of the connecting plate 310 near the middle. A lower connecting frame 320 is provided at the front end of the outer arm 32 near the middle. The air spring 4 is mounted on the mounting plate 201, with its upper end connected to the connecting plate 310. The air spring 4 is connected to an air source through a pipeline. The pipeline is connected, and a venting control valve 8 is provided on it; the magnetorheological damper 5 is disposed between the upper connecting frame 311 and the lower connecting frame 320, and is rotatably connected to both the upper connecting frame 311 and the lower connecting frame 320; there are two acceleration sensors 6, one disposed at the front end of the upper mounting frame 1 and the other disposed at the front end of the lower fixed seat 2; during vehicle movement, the two acceleration sensors detect the relative acceleration between the upper mounting frame 1 and the lower fixed seat 2, reflecting the combined vibrations related to road conditions and attitude; the position sensor 7 is mounted on the inner arm 31 or the outer arm 32. The controller is located near the rear end (tail end) of the suspension damping structure to detect the displacement between the upper mounting frame 1 and the lower fixed seat 2 after zero gravity posture, reflecting the effective load and center of gravity under posture changes; the controller is used to control the ventilation control valve 8 to open or close according to the data monitored by the position sensor 7, thereby adjusting the air spring 4 to maintain the target suspension height and compensate for the influence of posture changes; at the same time, it adjusts the damping coefficient of the magnetorheological damper 5 according to the relative acceleration between the upper mounting frame 1 and the lower fixed seat 2 to adapt to the load center of gravity shift and vibration characteristics changes caused by zero gravity posture changes.

[0022] The above describes specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A suspension and shock absorption structure suitable for three rows of zero-gravity seats, characterized in that, The system includes an upper mounting frame, a lower fixed base, a crossarm assembly, an air spring, a magnetorheological damper, an accelerometer, a position sensor, and a controller. The lower fixed base has a mounting plate near its rear end. The inner arm of the crossarm assembly has a connecting plate opposite the mounting plate, with an upper connecting frame at the front end of the connecting plate near the center. The outer arm of the crossarm assembly has a lower connecting frame at the front end near the center. The air spring is mounted on the mounting plate and connected to the connecting plate at its upper end. The magnetorheological damper is positioned between the upper and lower connecting frames. Two accelerometers are used, one at the front end of the upper mounting frame and the other at the front end of the lower fixed base. The position sensor is mounted on either the inner or outer arm, near the rear end of the suspension damping structure. The controller adjusts the air spring based on data monitored by the position sensor and adjusts the damping coefficient of the magnetorheological damper based on data monitored by the accelerometer.

2. The suspension and shock absorption structure for three rows of zero-gravity seats according to claim 1, characterized in that, The inner arm and outer arm are arranged in a cross configuration. The upper end of the inner arm is rotatably connected to the front end of the upper mounting frame, and the lower end of the inner arm is rotatably connected to the rear end of the lower fixed seat. The upper end of the outer arm is rotatably connected to the rear end of the upper mounting frame, and the lower end of the outer arm is rotatably connected to the front end of the lower fixed seat. The intersection of the inner arm and the outer arm is rotatably connected by a rotating shaft.

3. A suspension and shock absorption structure suitable for three rows of zero-gravity seats according to claim 1, characterized in that, The air spring is connected to an air source via a pipeline, and the pipeline is equipped with an air control valve.

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