Active protection seat and seat adjustment method for automatic driving vehicle

Abstract

The present invention proposes an active protection seat for an autonomous driving car, the active protection seat comprising a seat fore-and-aft and height adjustment device, a control system, a seat moving device, a first damping adjustment device, a second damping adjustment device and an adjustable car seat. The side of the seat fore-and-aft and height adjustment device is fixedly connected to the control system, and the upper surface is fixedly connected to the seat moving device to achieve the fore-and-aft movement and height adjustment of the seat moving device; the control system receives the signal of the vehicle driving computer, and after analysis and processing, controls the first and second damping adjustment devices to adjust the damping size to achieve seat stability. The first damping adjustment device and the second damping adjustment device are installed on the lower surface of the seat support plate, and the first damping adjustment device and the second damping adjustment device are located on the same straight line, parallel to the guide rail. The technical solution of the present invention can autonomously adjust and achieve seat stability in real time, actively protect the safety of the occupants, and provide a comfortable riding environment for the occupants.

Description

Technical Field

[0001] The present invention belongs to the field of active protection seats for automobiles, and in particular relates to an automobile seat for active protection of passengers in an automatic driving automobile and a seat adjustment method. Background Art

[0002] Self-driving cars use perception sensors to analyze road conditions in real time and adjust their driving status in real time based on the analysis results. During the adjustment process, there is no prompt to the passengers in the car. Limited by the perception distance and perception environment, self-driving cars often accelerate, decelerate or brake suddenly. The passengers in the car have no prediction of this action and can only passively accept the inertial force generated by the sudden acceleration and deceleration of the vehicle transmitted by the seats in the car. This inertial force will appear in the entire driving process, providing the passengers in the car with a poor riding environment and even causing damage to the passengers' bodies. At present, when the car is driving automatically, it is impossible to make timely and smooth adjustments to the seat status according to the current situation, such as when the car is accelerating, decelerating, driving on a curve, going uphill or downhill. This is exactly the technical problem to be solved by the present invention. Summary of the invention

[0003] Purpose of the invention: The present invention provides a car seat and a seat adjustment method that can actively adapt to the driving state of an autonomous vehicle, and can be quickly adjusted together with the driving state of the vehicle to provide a comfortable riding environment for the passengers in the vehicle.

[0004] Technical solution: The present invention provides an active protection seat for an automobile, which comprises a control system (2), a seat moving device (3), a first damping adjustment device (4), a second damping adjustment device (5) and an adjustable automobile seat (6); the seat moving device (3) comprises an upper seat support plate (3-1), a slider (3-2), a lower seat support plate (3-3), a guide rail (3-4), a pressure plate (3-5), and a displacement sensor (3-6); the adjustable automobile seat (6) is located on the upper surface of the upper seat support plate (3-1), the lower surface of the upper seat support plate (3-1) is fixedly connected with the slider (3-2), the upper surface of the lower seat support plate (3-3) is provided with a guide rail (3-4), and the slider (3-2) is slidably connected to the guide rail (3-4); the displacement sensor (3-6) is fixed on the lower seat support plate (3-3), and the pressure plate (3-5) is fixedly connected to the lower seat support plate (3-3). The first damping adjustment device (4) and the second damping adjustment device (5) are located on the same straight line and parallel to the guide rail (3-4); one end of the first damping adjustment device (4) and the second damping adjustment device (5) close to the middle of the seat support plate (3-1) are fixed to the lower surface of the upper seat support plate (3-1); the other ends of the first damping adjustment device (4) and the second damping adjustment device (5) are fixed to the upper surface of the lower seat support plate (3-3); the control system (2) is connected to the first damping adjustment device (4) and the second damping adjustment device (5) respectively, and is used to control the first damping adjustment device (4) and the second damping adjustment device (5) to adjust the damping size.

[0005] Preferably, four sliders (3-2) are symmetrically fixedly connected to the lower surface of the upper seat support plate (3-1), and two parallel guide rails are arranged on the upper surface of the lower seat support plate (3-3), and every two sliders (3-2) are slidably connected to each guide rail (3-4).

[0006] Preferably, limit blocks (3-7) are provided at both ends of each guide rail, and the seat support plate (3-1) is restricted and can only slide along the guide rail (3-4) within the range of the limit blocks (3-7) at both ends.

[0007] Preferably, the automobile active protection seat further comprises a seat fore-and-aft and height adjustment device (1), the upper surface of which is fixedly connected to the bottom of the seat moving device (3), and the seat fore-and-aft and height adjustment device (1) is used for the fore-and-aft movement and height adjustment of the seat moving device (3).

[0008] Preferably, the control system (2) is located at the front and rear of the seat and on the side of the height adjustment device (1).

[0009] Preferably, the first damping adjustment device (4) comprises a first connecting block (4-1), a first electromagnetic shock absorber (4-2) and a second connecting block (4-3); two ends of the first electromagnetic shock absorber (4-2) are respectively connected to the first connecting block (4-1) and the second connecting block (4-3); the first connecting block (4-1) is fixed to the lower surface of the upper seat support plate (3-1), and the second connecting block (4-3) is fixed to the upper surface of the lower seat support plate (3-3); the first electromagnetic shock absorber (4-2) is connected to the control system, and the damping size of the first electromagnetic shock absorber (4-2) is controlled by the control system (2); the second damping The adjustment device (5) has the same structure as the first damping adjustment device, comprising a first connecting block (4-1), a second electromagnetic shock absorber (5-2) and a second connecting block (4-3); two ends of the second electromagnetic shock absorber (5-2) are respectively connected to the first connecting block (4-1) and the second connecting block (4-3); the first connecting block (4-1) is fixed to the lower surface of the upper seat support plate (3-1), and the second connecting block (4-3) is fixed to the upper surface of the lower seat support plate (3-3); the second electromagnetic shock absorber (5-2) is connected to the control system (2), and the damping size of the second electromagnetic shock absorber (5-2) is controlled by the control system (2).

[0010] In addition, the present invention also proposes a seat adjustment method implemented according to the active protection seat of the automobile, the method comprising the following steps:

[0011] (1) fixing the active protection seat for automobiles on an installation position of an automobile seat, and determining an original equilibrium position of the active protection seat for automobiles;

[0012] (2) Determine the current driving state of the self-driving car. If the car seat is subjected to a backward inertial force when the car is accelerating, the control system (2) controls the second electromagnetic shock absorber to reduce damping and the first electromagnetic shock absorber to increase damping within the time t after analyzing and processing the received signals of the speed V, acceleration a and acceleration time t of the self-driving car, so as to offset the inertial force generated by the acceleration within the acceleration time until the acceleration ends. After the acceleration ends, the seat position is displaced due to the inertial force. The control system (2) adjusts the first electromagnetic shock absorber and the second electromagnetic shock absorber again according to the position information of the pressure plate (3-5) detected by the displacement sensor (3-6). The damping size is adjusted to make the seat return to the original balanced position; if the car is decelerating and the car seat is subjected to a forward inertial force, the control system (2) receives the speed V, deceleration a and acceleration time t signals of the automatic driving car, and after analysis and processing, controls the first electromagnetic shock absorber to reduce the damping and the second electromagnetic shock absorber to increase the damping size within the time t, thereby offsetting the inertial force generated by deceleration during the deceleration time. After the deceleration is completed, the seat position is displaced due to the inertial force. The control system (2) will adjust the damping size of the first electromagnetic shock absorber and the second electromagnetic shock absorber again according to the position information of the displacement sensor, so that the seat returns to the original balanced position.

[0013] Preferably, the step (2) further includes: judging the current driving state of the automatic driving vehicle, if the automatic driving vehicle currently enters a curve and the vehicle seat is subjected to centrifugal force, the control system (2) will control the damping size of the first electromagnetic shock absorber and the second electromagnetic shock absorber during the curve driving time after analysis and processing based on the received signals of the speed V and the steering wheel angle a of the automatic driving vehicle, so as to offset the centrifugal force during the curve driving time; and if the vehicle seat is displaced due to the centrifugal force during the curve driving time, the control system (2) will adjust the damping size of the first electromagnetic shock absorber and the second electromagnetic shock absorber again according to the position information of the pressure plate (3-5) detected by the displacement sensor (3-6), so that the seat returns to the original equilibrium position.

[0014] Beneficial effects: Compared with the prior art, the technical solution of the present invention has the following beneficial technical effects:

[0015] The technical solution of the present invention can autonomously adjust and realize the stability of the seat in real time, actively protect the safety of the passengers, and provide a comfortable riding environment for the passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a seat composition diagram of the present invention;

[0017] Figure 2 It is an axonometric view of the active protection seat;

[0018] Figure 3is the installation diagram of the first and second damping adjustment devices of the active protection seat;

[0019] Figure 4 It is a diagram of the components of the seat moving device;

[0020] Figure 5 is a composition diagram of the first and second damping adjustment devices;

[0021] Figure 6 This is the working principle diagram of the active protection seat.

[0022] The active protection seat consists of: a seat fore-and-aft and height adjustment device 1, a control system 2, a seat moving device 3, a first damping adjustment device 4, a second damping adjustment device 5 and an adjustable car seat 6, an upper seat support plate 3-1, a slider 3-2, a lower seat support plate 3-3, a guide rail 3-4, a pressure plate 3-5, a displacement sensor 3-6, a first connecting block 4-1, a first electromagnetic shock absorber 4-2 and a second connecting block 4-3, and a second electromagnetic shock absorber 5-2. DETAILED DESCRIPTION

[0023] The present invention provides an active protection seat for an automobile, which comprises a control system (2), a seat moving device (3), a first damping adjustment device (4), a second damping adjustment device (5) and an adjustable automobile seat (6); the seat moving device (3) comprises an upper seat support plate (3-1), a slider (3-2), a lower seat support plate (3-3), a guide rail (3-4), a pressure plate (3-5) and a displacement sensor (3-6); the adjustable automobile seat (6) is located on the upper surface of the upper seat support plate (3-1); the slider (3-2) is fixedly connected to the lower surface of the upper seat support plate (3-1); the guide rail (3-4) is arranged on the upper surface of the lower seat support plate (3-3); the slider (3-2) is slidably connected to the guide rail (3-4); the displacement sensor (3-6) is fixed on the lower seat support plate (3-3); and the pressure plate (3-5) is fixedly connected to the lower seat support plate (3-3). 5) one end of which is fixed on the upper seat support plate (3-1), the pressure plate (3-5) slides synchronously with the seat support plate (3-1), and the other end of the pressure plate (3-5) is directly opposite to the displacement sensor (3-6); the first damping adjustment device (4) and the second damping adjustment device (5) are located on the same straight line and parallel to the guide rail (3-4); one end of the first damping adjustment device (4) and the second damping adjustment device (5) close to the middle of the seat support plate (3-1) is fixed on the lower surface of the upper seat support plate (3-1), and the other ends of the first damping adjustment device (4) and the second damping adjustment device (5) are fixed on the upper surface of the lower seat support plate (3-3); the control system (2) is respectively connected to the first damping adjustment device (4) and the second damping adjustment device (5) for controlling the first damping adjustment device (4) and the second damping adjustment device (5) to adjust the damping size.

[0024] The lower surface of the upper seat support plate (3-1) is symmetrically fixedly connected with four sliders (3-2), and the upper surface of the lower seat support plate (3-3) is provided with two parallel guide rails, and every two sliders (3-2) are slidably connected with each guide rail (3-4). Here, four sliders (3-2) and two parallel guide rails are preferred, and different numbers of sliders and guide rails can be provided according to actual needs.

[0025] Limit blocks (3-7) are arranged at both ends of each guide rail, and the seat support plate (3-1) is restricted and can only slide along the guide rail (3-4) within the range of the limit blocks (3-7) at both ends.

[0026] The automobile active protection seat also includes a seat fore-and-aft and height adjustment device (1), the upper surface of which is fixedly connected to the bottom of the seat moving device (3), and the seat fore-and-aft and height adjustment device (1) is used for the fore-and-aft movement and height adjustment of the seat moving device (3).

[0027] The control system (2) is located at the front and rear of the seat and on the side of the height adjustment device (1).

[0028] The first damping adjustment device (4) comprises a first connecting block (4-1), a first electromagnetic shock absorber (4-2) and a second connecting block (4-3); two ends of the first electromagnetic shock absorber (4-2) are respectively connected to the first connecting block (4-1) and the second connecting block (4-3); the first connecting block (4-1) is fixed to the lower surface of the upper seat support plate (3-1), and the second connecting block (4-3) is fixed to the upper surface of the lower seat support plate (3-3); the first electromagnetic shock absorber (4-2) is connected to a control system, and the damping size of the first electromagnetic shock absorber (4-2) is controlled by the control system (2); the second damping adjustment device (4) comprises a first connecting block (4-1), a first electromagnetic shock absorber (4-2), and a second connecting block (4-3); The device (5) has the same structure as the first damping adjustment device, comprising a first connecting block (4-1), a second electromagnetic shock absorber (5-2) and a second connecting block (4-3); two ends of the second electromagnetic shock absorber (5-2) are respectively connected to the first connecting block (4-1) and the second connecting block (4-3); the first connecting block (4-1) is fixed to the lower surface of the upper seat support plate (3-1), and the second connecting block (4-3) is fixed to the upper surface of the lower seat support plate (3-3); the second electromagnetic shock absorber (5-2) is connected to the control system (2), and the damping size of the second electromagnetic shock absorber (5-2) is controlled by the control system (2).

[0029] In addition, the present invention also proposes a seat adjustment method implemented according to the active protection seat of the automobile, the method comprising the following steps:

[0030] (1) fixing the active protection seat for automobiles on an installation position of an automobile seat, and determining an original equilibrium position of the active protection seat for automobiles;

[0031] (2) Determine the current driving state of the self-driving car. If the car seat is subjected to a backward inertial force when the car is accelerating, the control system (2) controls the second electromagnetic shock absorber to reduce damping and the first electromagnetic shock absorber to increase damping within the time t after analyzing and processing the received signals of the speed V, acceleration a and acceleration time t of the self-driving car, so as to offset the inertial force generated by the acceleration within the acceleration time until the acceleration ends. After the acceleration ends, the seat position is displaced due to the inertial force. The control system (2) adjusts the first electromagnetic shock absorber and the second electromagnetic shock absorber again according to the position information of the pressure plate (3-5) detected by the displacement sensor (3-6). The damping size is adjusted to make the seat return to the original balanced position; if the car is decelerating and the car seat is subjected to a forward inertial force, the control system (2) receives the speed V, deceleration a and acceleration time t signals of the automatic driving car, and after analysis and processing, controls the first electromagnetic shock absorber to reduce the damping and the second electromagnetic shock absorber to increase the damping size within the time t, thereby offsetting the inertial force generated by deceleration during the deceleration time. After the deceleration is completed, the seat position is displaced due to the inertial force. The control system (2) will adjust the damping size of the first electromagnetic shock absorber and the second electromagnetic shock absorber again according to the position information of the displacement sensor, so that the seat returns to the original balanced position.

[0032] Preferably, the step (2) further includes: judging the current driving state of the automatic driving vehicle, if the automatic driving vehicle currently enters a curve and the vehicle seat is subjected to centrifugal force, the control system (2) will control the damping size of the first electromagnetic shock absorber and the second electromagnetic shock absorber during the curve driving time after analysis and processing based on the received signals of the speed V and the steering wheel angle a of the automatic driving vehicle, so as to offset the centrifugal force during the curve driving time; and if the vehicle seat is displaced due to the centrifugal force during the curve driving time, the control system (2) will adjust the damping size of the first electromagnetic shock absorber and the second electromagnetic shock absorber again according to the position information of the pressure plate (3-5) detected by the displacement sensor (3-6), so that the seat returns to the original equilibrium position.

[0033] Here, the seat state adjustment when the car is accelerating, decelerating, or driving on a curve is merely illustrated. In addition to the above-mentioned seat state adjustment proposed by the present invention, the present invention can also be used for other seat state adjustments, such as seat state adjustment when driving uphill or downhill, etc., which are not illustrated one by one here.

Claims

1. An active protection seat for a car, characterized in that: The active protection seat comprises a control system (2), a seat moving device (3), a first damping adjustment device (4), a second damping adjustment device (5) and an adjustable car seat (6); the seat moving device (3) comprises an upper seat support plate (3-1), a slider (3-2), a lower seat support plate (3-3), a guide rail (3-4), a pressure plate (3-5) and a displacement sensor (3-6); the adjustable car seat (6) is located on the upper surface of the upper seat support plate (3-1); the slider (3-2) is fixedly connected to the lower surface of the upper seat support plate (3-1); the guide rail (3-4) is arranged on the upper surface of the lower seat support plate (3-3); the slider (3-2) is slidably connected to the guide rail (3-4); the displacement sensor (3-6) is fixed on the lower seat support plate (3-3); one end of the pressure plate (3-5) is fixed to the upper seat support plate (3-3); On the chair support plate (3-1), the pressing plate (3-5) slides synchronously with the upper seat support plate (3-1), and the other end of the pressing plate (3-5) is directly opposite to the displacement sensor (3-6); the first damping adjustment device (4) and the second damping adjustment device (5) are located on the same straight line and parallel to the guide rail (3-4); one end of the first damping adjustment device (4) and the second damping adjustment device (5) close to the middle of the upper seat support plate (3-1) is fixed to the lower surface of the upper seat support plate (3-1), and the other ends of the first damping adjustment device (4) and the second damping adjustment device (5) are fixed to the upper surface of the lower seat support plate (3-3); the control system (2) is respectively connected to the first damping adjustment device (4) and the second damping adjustment device (5) for controlling the first damping adjustment device (4) and the second damping adjustment device (5) to adjust the damping size; The lower surface of the upper seat support plate (3-1) is symmetrically fixedly connected with four sliders (3-2); the upper surface of the lower seat support plate (3-3) is provided with two parallel guide rails, and every two sliders (3-2) are slidably connected with each guide rail (3-4); The automobile active protection seat also includes a seat forward and backward movement and height adjustment device (1), the upper surface of which is fixedly connected to the bottom of the seat moving device (3), and the seat forward and backward movement and height adjustment device (1) is used for the seat moving device (3) to move forward and backward and adjust the height; The first damping adjustment device (4) comprises a first connecting block (4-1), a first electromagnetic shock absorber (4-2) and a second connecting block (4-3); two ends of the first electromagnetic shock absorber (4-2) are respectively connected to the first connecting block (4-1) and the second connecting block (4-3); the first connecting block (4-1) is fixed to the lower surface of the upper seat support plate (3-1), and the second connecting block (4-3) is fixed to the upper surface of the lower seat support plate (3-3); the first electromagnetic shock absorber (4-2) is connected to a control system, and the damping size of the first electromagnetic shock absorber (4-2) is controlled by the control system (2); the second damping adjustment device (4) comprises a first connecting block (4-1), a first electromagnetic shock absorber (4-2), and a second connecting block (4-3); The device (5) has the same structure as the first damping adjustment device, comprising a first connecting block (4-1), a second electromagnetic shock absorber (5-2) and a second connecting block (4-3); two ends of the second electromagnetic shock absorber (5-2) are respectively connected to the first connecting block (4-1) and the second connecting block (4-3); the first connecting block (4-1) is fixed to the lower surface of the upper seat support plate (3-1), and the second connecting block (4-3) is fixed to the upper surface of the lower seat support plate (3-3); the second electromagnetic shock absorber (5-2) is connected to the control system (2), and the damping size of the second electromagnetic shock absorber (5-2) is controlled by the control system (2).

2. The active protection seat for a vehicle according to claim 1, characterized in that: Limit blocks (3-7) are arranged at both ends of each guide rail, and the upper seat support plate (3-1) is restricted and can only slide along the guide rail (3-4) within the range of the limit blocks (3-7) at both ends.

3. The active protection seat for automobile according to claim 1, characterized in that: The control system (2) is located at the front and rear of the seat and on the side of the height adjustment device (1).

4. The seat adjustment method for the active protection seat of an automobile according to any one of claims 1 to 3, characterized in that: The method comprises the following steps: (1) fixing the active protection seat for automobiles on an installation position of an automobile seat, and determining an original equilibrium position of the active protection seat for automobiles; (2) Determine the current driving state of the self-driving car. If the car seat is subjected to a backward inertial force when the car is accelerating, the control system (2) controls the second electromagnetic shock absorber to reduce damping and the first electromagnetic shock absorber to increase damping within the time t after analyzing and processing the received signals of the speed V, acceleration a and acceleration time t of the self-driving car, so as to offset the inertial force generated by the acceleration within the acceleration time until the acceleration ends. After the acceleration ends, the seat position is displaced due to the inertial force. The control system (2) adjusts the first electromagnetic shock absorber and the second electromagnetic shock absorber again according to the position information of the pressure plate (3-5) detected by the displacement sensor (3-6). The damping size is adjusted to make the seat return to the original balanced position; if the car is decelerating and the car seat is subjected to a forward inertial force, the control system (2) receives the speed V, deceleration a and acceleration time t signals of the automatic driving car, and after analysis and processing, controls the first electromagnetic shock absorber to reduce the damping and the second electromagnetic shock absorber to increase the damping size within the time t, thereby offsetting the inertial force generated by deceleration during the deceleration time. After the deceleration is completed, the seat position is displaced due to the inertial force. The control system (2) will adjust the damping size of the first electromagnetic shock absorber and the second electromagnetic shock absorber again according to the position information of the displacement sensor, so that the seat returns to the original balanced position.

5. The seat adjustment method according to claim 4, characterized in that: The step (2) further includes: judging the current driving state of the automatic driving vehicle, if the automatic driving vehicle currently enters a curve and the vehicle seat is subjected to centrifugal force, the control system (2) will analyze and process the received signals of the speed V and the steering wheel angle a of the automatic driving vehicle, and then control the damping size of the first electromagnetic shock absorber and the second electromagnetic shock absorber during the curve driving time to offset the centrifugal force during the curve driving time; and if the vehicle seat is displaced due to the centrifugal force during the curve driving time, the control system (2) will adjust the damping size of the first electromagnetic shock absorber and the second electromagnetic shock absorber again according to the position information of the pressure plate (3-5) detected by the displacement sensor (3-6), so that the seat returns to the original balanced position.

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