Self-adaptive magneto-rheological damping seat control system

Abstract

The utility model provides a self-adaptive magneto-rheological damping seat control system, which comprises a semi-active seat suspension, a plurality of magneto-rheological dampers, an attitude sensor and a controller, an automobile seat is arranged on an automobile body through the semi-active seat suspension, and the magneto-rheological dampers are arranged at four corners of the semi-active seat suspension; the input end of the magnetic variation damper is connected to the output end of the controller, and the magnetic variation damper is used for receiving a control instruction or a current output value of the magnetic variation damper; the magneto-rheological damper is used for regulating and controlling road excitation signals and data, bumping and vibration generated in the running process of a vehicle are reduced, more comfortable riding experience is provided for a passenger, through the magneto-rheological damper, the fatigue feeling caused by long-time driving or riding is reduced, the comfort degree of a driver and passengers is improved, and the safety of the driver and the passengers is improved. And the posture stability of the driver and the passenger can be maintained, and the body shaking on a bumpy road section is reduced, so that the riding safety is improved.

Description

Technical Field

[0001] The utility model relates to an adaptive magnetorheological damping seat control system, belonging to the field of seat control. Background Art

[0002] Vehicles have become an indispensable means of transportation in people's daily lives. In this process of transportation, the comfort of seats, as the main part of the vehicle that the passengers have direct contact with, is particularly critical. During driving, the vehicle travels on uneven roads, and the bumps and vibrations generated can easily be transmitted to the seats, causing discomfort and fatigue to the passengers.

[0003] To solve this problem, modern vehicle driving seats widely use suspension systems. The suspension system provides a smoother and more comfortable riding experience for the driver and passengers by slowing down and absorbing the vibrations generated during vehicle movement.

[0004] The mechanical suspension systems currently on the market mainly use single spring suspension, hydraulic damper suspension or air bag suspension. The damping force of these systems is usually fixed during manufacturing and cannot be adjusted according to different driving conditions, and cannot provide optimal comfort. Secondly, traditional mechanical shock absorbers have low reliability and stability, high frequency of mechanical failures and repairs, and short service life of the seats.

[0005] Therefore, the utility model provides an adaptive magnetorheological shock absorbing seat control system which can actually adjust the damping force to adapt to different driving conditions and weight changes of passengers. Utility Model Content

[0006] The utility model provides an adaptive magnetorheological shock-absorbing seat control system, which can effectively solve the above problems.

[0007] The utility model is achieved in this way:

[0008] An adaptive magnetorheological damping seat control system comprises a semi-active seat suspension, a magnetorheological damper, a posture sensor, and a controller. The car seat is installed on the car body through the semi-active seat suspension. The magnetorheological dampers are installed at the four corners of the semi-active seat suspension.

[0009] The input end of the magnetic variable damper is connected to the output end of the controller, and is used to receive a control instruction or a current output value of the magnetic variable damper;

[0010] The posture sensor is located on the side of the semi-active seat suspension and is used to obtain the z-axis velocity and acceleration data of the semi-active seat suspension. The output end of the posture sensor is connected to the input end of the controller.

[0011] As a further improvement, the controller includes an MCU and a data processing module located on the MCU, wherein the input end of the data processing module is connected to the output end of the attitude sensor, for receiving the z-axis velocity and acceleration data acquired by the attitude sensor, removing noise through a filtering algorithm and sending the data to the adaptive adjustment module for synchronous storage.

[0012] As a further improvement, the controller further comprises an adaptive adjustment module, the input end of the adaptive adjustment module is connected to the output end of the data processing module, and is used to receive the z-axis velocity and acceleration data processed by the data processing module;

[0013] And the control command or current output value of the magnetic variable damper is calculated by the PID control algorithm;

[0014] Finally, the output end of the adaptive adjustment module is connected to the input end of the magnetic variable damper to send a control instruction or a current output value of the magnetic variable damper.

[0015] As a further improvement, the controller further includes a fully automatic seat control module, the output end of which is connected to a magnetically variable damper for sending an electrical signal to control the tilt angle of the magnetically variable damper and thereby adjust the angle of the car seat.

[0016] As a further improvement, the semi-active seat suspension includes a first frame and a second frame, the first frame and the second frame are parallel to each other, the four corners of the first frame and the second frame are vertically connected by a magneto-variable damper, the top of the first frame is connected to the car seat, and the second frame is fixed to the car body.

[0017] As a further improvement, the posture sensor is installed on the side of the first frame.

[0018] The beneficial effects of the utility model are as follows: the utility model regulates the magnetorheological shock absorber according to the road excitation signal and data, thereby reducing the bumps and vibrations generated during vehicle driving, providing passengers with a more comfortable riding experience, and reducing fatigue caused by long-term driving or riding through the magnetorheological damper, thereby improving the comfort of the driver and passengers, and can also help maintain the stability of the posture of the driver and passengers, reduce body shaking on bumpy roads, and thus improve riding safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a flow chart of an adaptive magnetorheological shock absorbing seat control system provided by an embodiment of the utility model.

[0021] Figure 2 It is a diagram of the internal structure of a controller of an adaptive magnetorheological shock absorbing seat control system provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0023] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] Reference Figure 1 , Figure 2 As shown, this embodiment provides a specific implementation method for an adaptive magnetorheological damping seat control system, including a semi-active seat suspension, a magnetorheological damper, a posture sensor, and a controller. The car seat is installed on the car body through the semi-active seat suspension. The magnetorheological dampers are installed at the four corners of the semi-active seat suspension.

[0025] The input end of the magnetic variable damper is connected to the output end of the controller, and is used to receive a control instruction or a current output value of the magnetic variable damper;

[0026] The attitude sensor is located on the side of the semi-active seat suspension, and is used to obtain the z-axis velocity and acceleration data of the semi-active seat suspension and convert them into electrical signals after processing. The output end of the attitude sensor is connected to the input end of the controller;

[0027] During the driving process of the utility model, the vehicle suspension is excited by the road surface, thereby working to reduce shock. The posture sensor under the car seat will record and process the acceleration of the Z axis, convert it into an electrical signal, and transmit it to the controller. After receiving the data collected by the sensor, the controller will process and analyze the data to understand the vibration conditions, amplitude, frequency, acceleration, etc. of the car seat. The controller will use the collected data and the pre-set PID control algorithm to calculate the control instructions or output values ​​required by the magnetorheological damper. The adjustment amount instruction generated by the controller will be transmitted to the magnetic flux coil of the magnetorheological damper through the circuit to control the flow of the magnetorheological fluid, thereby adjusting the damping force of the magnetorheological damper, reducing the bumps and vibrations generated during the driving of the vehicle, and providing a more comfortable riding experience for the passengers. Through the magnetorheological damper, the fatigue caused by long-term driving or riding is reduced, the comfort of the driver and passengers is improved, and it can also help maintain the posture stability of the driver and passengers, reduce the body shaking on bumpy roads, and thus improve the safety of riding.

[0028] The specific internal structure and principle of the controller are as follows:

[0029] The controller includes an MCU and a data processing module located on the MCU. The input end of the data processing module is connected to the output end of the attitude sensor, which is used to receive the z-axis velocity and acceleration data acquired by the attitude sensor, remove noise through a filtering algorithm and send it to the adaptive adjustment module for synchronous storage.

[0030] Further, the controller further comprises an adaptive adjustment module, the input end of the adaptive adjustment module is connected to the output end of the data processing module, and is used to receive the z-axis velocity and acceleration data processed by the data processing module;

[0031] And the control command or current output value of the magnetic variable damper is calculated by the PID control algorithm;

[0032] Finally, the output end of the adaptive adjustment module is connected to the input end of the magnetic variable damper to send a control instruction or a current output value of the magnetic variable damper.

[0033] The PID control algorithm described here is also a PID algorithm, which controls the controlled quantity through an error signal, and the controller itself is the sum of three links: proportional, integral, and differential.

[0034] As a possible specific implementation of the utility model, the controller also includes a fully automatic control seat module, and the output end of the fully automatic control seat module is connected to the magnetic variable damper for sending an electrical signal to control the tilt angle of the magnetic variable damper and thus adjust the angle of the car seat.

[0035] As a possible specific implementation of the utility model, the semi-active seat suspension includes a first frame and a second frame, the first frame and the second frame are parallel to each other, the four corners of the first frame and the second frame are vertically connected through a magnetic variable damper, the top of the first frame is connected to the car seat, and the second frame is fixed to the car body.

[0036] Furthermore, the attitude sensor is installed on the side of the first frame, and will measure and acquire data following the bumps of the car during driving.

[0037] The present invention is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0038] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0039] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0040] It should be noted that in the claims, any reference signs placed between brackets shall not be constructed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The utility model can be implemented with the aid of hardware comprising several different components and with the aid of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same hardware item. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names.

[0041] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0042] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

Claims

1. An adaptive magnetorheological damping seat control system, characterized in that: It includes a semi-active seat suspension, a magneto-variable damper, a posture sensor, and a controller. The car seat is installed on the car body through the semi-active seat suspension. The magneto-variable dampers are installed at the four corners of the semi-active seat suspension. The input end of the magnetic variable damper is connected to the output end of the controller, and is used to receive a control instruction or a current output value of the magnetic variable damper; The attitude sensor is located on the side of the semi-active seat suspension and is used to obtain the z-axis velocity and acceleration data of the semi-active seat suspension. The output end of the attitude sensor is connected to the input end of the controller; The controller includes an MCU and a data processing module located on the MCU. The input end of the data processing module is connected to the output end of the attitude sensor, and is used to receive the z-axis velocity and acceleration data acquired by the attitude sensor, remove noise through a filtering algorithm, and send the data to the adaptive adjustment module for synchronous storage.

2. The adaptive magnetorheological damping seat control system according to claim 1, characterized in that: The controller further comprises an adaptive adjustment module, the input end of the adaptive adjustment module is connected to the output end of the data processing module, and is used to receive the z-axis velocity and acceleration data processed by the data processing module; And the control instruction or current output value of the magnetic variable damper is calculated by the PID control algorithm; The output end of the adaptive adjustment module is connected to the input end of the magnetic variable damper to send a control instruction or a current output value of the magnetic variable damper.

3. The adaptive magnetorheological damping seat control system according to claim 2, characterized in that: The controller also includes a fully automatic seat control module, the output end of which is connected to a magnetic variable damper for sending an electrical signal to control the tilt angle of the magnetic variable damper and thus adjust the angle of the car seat.

4. The adaptive magnetorheological damping seat control system according to claim 1, characterized in that: The semi-active seat suspension includes a first frame and a second frame, the first frame and the second frame are parallel to each other, the four corners of the first frame and the second frame are vertically connected through a magnetic variable damper, the top of the first frame is connected to the car seat, and the second frame is fixed on the car body.

5. The adaptive magnetorheological damping seat control system according to claim 4, characterized in that: The posture sensor is installed on the side of the first frame.

Images