A magneto-rheological vibration damping seat control system

Abstract

The utility model discloses a kind of magnetorheological shock-absorbing seat control systems, including seat body, controller, sensor, back magnetorheological shock absorber, bottom magnetorheological shock absorber, the output end of the sensor is connected to the input end of controller, the controller includes MCU, data processing module, back control module, bottom control module, the input end of the data processing module is connected to the output end of sensor, the output end of the data processing module is respectively connected to the input end of back control module, the input end of bottom control module, the output end of back control module, the output end of bottom control module is respectively connected to the input end of back magnetorheological shock absorber, the input end of bottom magnetorheological shock absorber.The utility model fast response speed, real-time adjustment damping force, improve seat comfort.

Description

Technical Field

[0001] This utility model relates to the technical field of seat vibration reduction control, and in particular to a magnetorheological vibration reduction seat control system. Background Technology

[0002] Vehicles have become an indispensable means of transportation in people's daily lives. During this journey, the seat, as the primary point of contact between the occupant and the vehicle, is crucial for comfort. When driving on uneven roads, bumps and vibrations are easily transmitted to the seat, causing discomfort and fatigue. To address this issue, modern vehicle driver's seats widely employ suspension systems. Suspension systems reduce and absorb vibrations generated during vehicle movement, providing a smoother and more comfortable ride for the driver and passengers. Currently, mechanical suspension systems on the market mainly use single-spring suspensions, hydraulic damper suspensions, or air suspensions. The damping force of these systems is usually fixed during manufacturing and cannot be adjusted according to different driving conditions, thus failing to provide optimal comfort. Therefore, developing a seat back vibration damping technology that can adapt to a wider range of vibration frequencies is particularly important. To solve these problems, magnetorheological dampers have emerged, serving as magnetorheological vibration dampers. Magnetorheological dampers have a wide range of damping force adjustment, which can be flexibly adjusted according to different working conditions and vibration frequencies to achieve optimal vibration reduction effect. There is an urgent need for a magnetorheological vibration-damping seat control system to control the damping force of the magnetorheological dampers on the seat. Utility Model Content

[0003] The purpose of this invention is to provide a magnetorheological vibration damping seat control system to control the damping force of the magnetorheological vibration damper on the seat.

[0004] To achieve the above objectives, this utility model discloses a magnetorheological vibration damping seat control system, including a seat body, a controller, sensors, a back magnetorheological vibration damper, and a bottom magnetorheological vibration damper. The back magnetorheological vibration damper and the bottom magnetorheological vibration damper are respectively installed on the backrest and base of the seat body. The input terminals of the back magnetorheological vibration damper and the bottom magnetorheological vibration damper are respectively connected to the output terminal of the controller, and are used to receive control commands or current output values ​​from the back magnetorheological vibration damper and the bottom magnetorheological vibration damper, respectively. The sensors are located at the bottom of the seat body and are used to acquire the speed and acceleration of the seat body. Speed ​​data is transmitted through the sensor, the output of which is connected to the input of the controller. The controller includes an MCU, a data processing module, a rear control module, and a bottom control module. The data processing module, the rear control module, and the bottom control module are all located on the MCU. The input of the data processing module is connected to the output of the sensor, and the output of the data processing module is connected to the input of the rear control module and the input of the bottom control module, respectively. The output of the rear control module and the output of the bottom control module are connected to the input of the rear magnetorheological damper and the input of the bottom magnetorheological damper, respectively.

[0005] Preferably, it also includes a back spring vibration isolator and a mounting plate, wherein both ends of the back magnetorheological vibration isolator and both ends of the back spring vibration isolator are respectively connected to the backrest of the seat body and the mounting plate.

[0006] Preferably, it also includes a bottom spring vibration isolator and a base plate mounted on the seat body base. The sensor is mounted on the base plate, and both ends of the bottom spring vibration isolator and both ends of the bottom magnetorheological vibration damper are respectively connected to the base and base plate of the seat body.

[0007] The beneficial effects of this utility model are as follows: The magnetorheological vibration damping seat control system provided by the above technical solution has a back magnetorheological vibration damper and a bottom magnetorheological vibration damper respectively installed on the backrest and the seat cushion. When the sensor detects a vibration signal, it sends a signal to the data processing module in the controller. The back control module and the bottom control module control the damping force of the back magnetorheological vibration damper and the bottom magnetorheological vibration damper respectively. It has a fast response speed and adjusts the damping force in real time, thereby improving the comfort of the seat.

[0008] The present invention will become clearer from the following description and in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. Attached Figure Description

[0009] Figure 1 The diagram shows a flowchart of a magnetorheological vibration damping seat control system.

[0010] Figure 2 The diagram shows the internal structure of the controller in the magnetorheological vibration damping seat control system.

[0011] Figure 3 The diagram shown is a structural diagram of a magnetorheological vibration damping seat.

[0012] Figure 4 The diagram shows the structure of the bottom spring isolator, base plate, sensor, and bottom magnetorheological damper in the magnetorheological vibration damping seat. Detailed Implementation

[0013] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0014] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0016] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0017] refer to Figures 1 to 4A magnetorheological vibration damping seat control system includes a seat body 100, a controller, a sensor 150, a back magnetorheological vibration damper 220, and a bottom magnetorheological vibration damper 130. The back magnetorheological vibration damper 220 and the bottom magnetorheological vibration damper 130 are respectively mounted on the backrest and base of the seat body 100. The input terminals of the back magnetorheological vibration damper 220 and the bottom magnetorheological vibration damper 130 are respectively connected to the output terminal of the controller to receive control commands or current output values ​​from the back magnetorheological vibration damper 220 and the bottom magnetorheological vibration damper 130. The sensor 150 is located at the bottom of the seat body 100 and is used to acquire data from the seat body. The sensor 150 has a velocity and acceleration data of 100. The output of the sensor 150 is connected to the input of the controller. The controller includes an MCU, a data processing module, a back control module, and a bottom control module. The data processing module, the back control module, and the bottom control module are all located on the MCU. The input of the data processing module is connected to the output of the sensor 150. The output of the data processing module is connected to the input of the back control module and the input of the bottom control module, respectively. The output of the back control module and the output of the bottom control module are connected to the input of the back magnetorheological damper 220 and the input of the bottom magnetorheological damper 130, respectively.

[0018] During driving, the vehicle suspension is excited by the road surface. The sensor 150 at the bottom of the seat body 100 records and processes the acceleration along the Z and X axes, converts it into electrical signals, and transmits them to the controller. After receiving the data collected by the sensor 150, the data processing module in the controller processes and analyzes this data to understand the vibration experienced by the car seat, such as amplitude, frequency, and acceleration. The back control module and the bottom control module use the collected data and a pre-set PID control algorithm to calculate the control commands or current output values ​​for the back magnetorheological damper 220 and the bottom magnetorheological damper 130. The adjustment commands generated by the controller are transmitted to the back magnetorheological damper 220 and the bottom magnetorheological damper 130 through the circuit. The magnetorheological coils in the variable damper 130 control the flow of magnetorheological fluid in the back magnetorheological damper 220 and the bottom magnetorheological damper 130, thereby adjusting the damping force of the back magnetorheological damper 220 and the bottom magnetorheological damper 130. It has a fast response speed and adjusts the damping force in real time, improving seat comfort and reducing bumps and vibrations generated during vehicle operation, providing passengers with a more comfortable riding experience. By controlling the back magnetorheological damper 220 and the bottom magnetorheological damper 130, fatigue caused by long-term driving or riding can be reduced, improving the comfort of the driver and passengers. It can also help maintain the posture stability of the driver and passengers, reduce body swaying on bumpy roads, and thus improve riding safety.

[0019] In one embodiment, the system further includes a back spring isolator 230 and a mounting plate 210. Both ends of the back magnetorheological damper 220 and the back spring isolator 230 are respectively connected to the backrest of the seat body 100 and the mounting plate 210. The back spring isolator 230 can be a passive air spring isolator. The back spring isolator 230 serves to store energy, maintain stiffness, and support weight, while the back magnetorheological damper 220 serves to dissipate energy, suppress resonance, and control motion. There are two back magnetorheological dampers 220, arranged side-by-side between the backrest of the seat body 100 and the mounting plate 210. The back spring isolator 230 is positioned between the two back magnetorheological dampers 220, which better supports and dampes the passenger's backrest, improving seat back comfort.

[0020] In one embodiment, the system further includes a bottom spring isolator 140 and a base plate 110 mounted on the seat body 100 base. The sensor 150 is mounted on the base plate 110. Both ends of the bottom spring isolator 140 and both ends of the bottom magnetorheological damper 130 are respectively connected to the base of the seat body 100 and the base plate 110. The bottom spring isolator 140 can be a passive air spring isolator, which serves to store energy, maintain stiffness, and support weight. There are two bottom magnetorheological dampers 130, which are arranged crosswise between the base plate 110 and the seat body 100 base. This provides better support and vibration damping for the passenger's seat cushion. When the car decelerates or brakes, it can suppress the passenger's forward or backward tilting. Combined with the backrest support provided by the back magnetorheological damper 220, it can improve seat comfort.

[0021] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A magnetorheological vibration damping seat control system, characterized in that, The system includes a seat body, a controller, a sensor, a back magnetorheological damper, and a bottom magnetorheological damper, wherein the back magnetorheological damper and the bottom magnetorheological damper are respectively installed on the backrest and the base of the seat body; The input terminals of the back magnetorheological damper and the bottom magnetorheological damper are respectively connected to the output terminal of the controller, and are used to receive control commands or current output values ​​from the back magnetorheological damper and the bottom magnetorheological damper, respectively. The sensor is located at the bottom of the seat body and is used to acquire the speed and acceleration data of the seat body. The output of the sensor is connected to the input of the controller. The controller includes an MCU, a data processing module, a rear control module, and a bottom control module. The data processing module, the rear control module, and the bottom control module are all located on the MCU. The input terminal of the data processing module is connected to the output terminal of the sensor. The output terminal of the data processing module is connected to the input terminal of the rear control module and the input terminal of the bottom control module, respectively. The output terminals of the rear control module and the bottom control module are connected to the input terminals of the rear magnetorheological damper and the bottom magnetorheological damper, respectively.

2. The magnetorheological vibration damping seat control system as described in claim 1, characterized in that, It also includes a back spring vibration isolator and a mounting plate. Both ends of the back magnetorheological vibration isolator and both ends of the back spring vibration isolator are respectively connected to the backrest of the seat body and the mounting plate.

3. The magnetorheological vibration damping seat control system as described in claim 1, characterized in that, It also includes a bottom spring vibration isolator and a base plate mounted on the seat body base. The sensor is mounted on the base plate. Both ends of the bottom spring vibration isolator and both ends of the bottom magnetorheological vibration damper are respectively connected to the base and base plate of the seat body.

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