Method and system for resetting zero-pressure seat of vehicle

Abstract

The invention relates to a resetting method and system for a zero-pressure seat of a vehicle, and the method comprises the steps: judging whether a passenger is on the zero-pressure seat or not and whether the zero-pressure seat is in a zero-gravity state or not through a seat controller, and obtaining a judgment result; when the judgment result is that the passenger is on the zero-pressure seat and is in the zero-gravity state, the seat controller sends the judgment result to an automatic emergency braking system, so that the automatic emergency braking system sends a pre-collision signal to the seat controller after the vehicle has a collision risk and triggers emergency braking; the seat controller receives the pre-collision signal; and the seat controller generates a reset signal according to the pre-collision signal and sends the reset signal to the driving mechanism, so that the driving mechanism drives the backrest to rotate by a preset angle, and the zero-pressure seat is reset to the safe state from the zero-pressure state before the vehicle collides. According to the resetting method and system for the zero-pressure seat of the vehicle, before the vehicle collides, the zero-pressure seat is quickly reset from the zero-gravity state to the safe state, and therefore passengers can receive the collision in a relatively safe posture.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle zero-pressure seats, and more specifically to a method and system for resetting a vehicle zero-pressure seat. Background Art

[0002] The zero-pressure seat is a high-tech seat designed based on ergonomic principles and the physiological curves of the human body. In the zero-pressure posture, it can provide uniform and comfortable support for the body, so that the parts of the body that are in contact for a long time are in a pressure-free state, thereby reducing the body pressure of the driver and passengers and tending to a zero-pressure suspension state.

[0003] The zero-pressure seat has a safe state and a zero-gravity state. In the safe state, the occupant is in a normal position, and in the zero-gravity state, the occupant is in a large reclining position. By adjusting the inclination angle of the backrest of the zero-pressure seat, the zero-pressure seat can be switched between the safe state and the zero-gravity state. When designing the seat, collision verification will be performed in the safe state. Therefore, if the vehicle collides, the zero-pressure seat is in a safe state, and the occupant will be relatively safe.

[0004] Because when the zero-pressure seat is in a zero-gravity state, the occupants are in a lying position. If the vehicle collides at this time, the occupants are prone to diving and the risk of the seat belt cutting their necks, which is very unsafe. Summary of the invention

[0005] The purpose of the present invention is to provide a method and system for resetting a vehicle zero-pressure seat, which can quickly restore the zero-pressure seat from a zero-gravity state to a safe state before a vehicle collision occurs, so that the occupants can face the collision in a relatively safe posture.

[0006] Based on the above purpose, the present invention provides a method for resetting a zero-pressure seat of a vehicle on one hand, wherein the vehicle includes an automatic emergency braking system, the zero-pressure seat includes a seat seat, a backrest and a driving mechanism, the zero-pressure seat has a safe state and a zero-gravity state, the backrest is rotatably connected to the seat seat, the driving mechanism is respectively connected to the backrest and the seat seat, and is used to drive the backrest to rotate relative to the seat seat, the vehicle also includes a seat controller, and the seat controller is respectively connected to the driving mechanism and the automatic emergency braking system, and the method includes:

[0007] The seat controller determines whether there is an occupant on the zero-pressure seat and whether the seat is in a zero-gravity state, and obtains a determination result;

[0008] When the judgment result is that there is an occupant on the zero-pressure seat and the seat is in a zero-gravity state, the seat controller sends the judgment result to the automatic emergency braking system, so that the automatic emergency braking system sends a pre-collision signal to the seat controller after the vehicle has a collision risk and triggers emergency braking;

[0009] The seat controller receives the pre-crash signal;

[0010] The seat controller generates a reset signal according to the pre-collision signal, and sends the reset signal to the drive mechanism, so that the drive mechanism drives the backrest to rotate a preset angle, so that the zero-pressure seat is reset from a zero-pressure state to a safe state before a vehicle collision.

[0011] Furthermore, the zero-pressure seat is further provided with a pressure sensor, and the pressure sensor is used to monitor the pressure on the zero-pressure seat. The seat controller determines whether there is an occupant on the zero-pressure seat, specifically including:

[0012] The seat controller receives the pressure monitored by the pressure sensor;

[0013] The seat controller compares the pressure monitored by the pressure sensor with a preset pressure. If the pressure is greater than the preset pressure, it is determined that there is an occupant on the zero-pressure seat. Otherwise, it is determined that there is no occupant on the zero-pressure seat.

[0014] Furthermore, the zero-pressure seat is further provided with a first angle sensor, which is used to monitor the angle between the backrest and the seat seat of the zero-pressure seat. The seat controller determines whether the zero-pressure seat is in a zero-gravity state, specifically including:

[0015] The seat seat controller receives the angle between the backrest and the seat seat monitored by the first angle sensor;

[0016] The seat controller determines whether the zero-pressure seat is in a zero-gravity state according to the angle monitored by the first angle sensor; or,

[0017] The zero-pressure seat is further provided with a first angle sensor and a second angle sensor, wherein the first angle sensor is used to monitor the angle between the backrest and the seat seat of the zero-pressure seat, and the second angle sensor is used to monitor the angle between the seat seat of the zero-pressure seat and the horizontal direction. The seat controller determines whether the zero-pressure seat is in a zero-gravity state, specifically including:

[0018] The seat seat controller receives the angle between the backrest and the seat seat monitored by the first angle sensor and the angle between the seat seat and the horizontal direction monitored by the second angle sensor;

[0019] The seat controller determines whether the zero-pressure seat is in a zero-gravity state based on the sum of the angle monitored by the first angle sensor and the angle monitored by the second angle sensor.

[0020] Further, the pre-collision signal includes a time to collision, and the seat controller generates a reset signal according to the pre-collision signal, specifically including:

[0021] The seat controller acquires the driving time according to the distance-to-collision time;

[0022] The seat controller calculates the driving force value according to the driving time, the pressure value monitored by the pressure sensor, and the angle monitored by the first angle sensor or the sum of the angle monitored by the first angle sensor and the angle monitored by the second angle sensor;

[0023] A reset signal is generated according to the driving time and the value of the driving force.

[0024] Furthermore, the backrest can rotate between a first position and a third position relative to the seat base, passing through a second position during the rotation. When the backrest is between the first position and the second position, the zero-pressure seat is in a safe state; when the backrest is between the second position and the third position, the zero-pressure seat is in a zero-pressure state.

[0025] Furthermore, the preset angle is equal to the angle between the second position and the third position.

[0026] Furthermore, the seat controller is arranged on the seat seat.

[0027] Another aspect of the present invention provides a reset system for a vehicle zero-pressure seat, wherein the vehicle includes an automatic emergency braking system, the zero-pressure seat includes a seat base, a backrest and a driving mechanism, the zero-pressure seat has a safe state and a zero-gravity state, the backrest is rotatably connected to the seat base, the driving mechanism is respectively connected to the backrest and the seat base, and is used to drive the backrest to rotate relative to the seat base, and the reset system includes:

[0028] A judgment module, used for judging whether there is an occupant on the zero-pressure seat and whether the seat is in a zero-gravity state, and obtaining a judgment result;

[0029] a sending module, configured to send the judgment result to the automatic emergency braking system when the judgment result is that there is an occupant on the zero-pressure seat and the seat is in a zero-gravity state, so that the automatic emergency braking system sends a pre-collision signal after the vehicle has a collision risk and triggers emergency braking;

[0030] a receiving module, configured to receive the pre-collision signal; and

[0031] A generating module is used to generate a reset signal according to the pre-collision signal, and send the reset signal to the driving mechanism, so that the driving mechanism drives the backrest to rotate a preset angle, so that the zero-pressure seat is reset from a zero-pressure state to a safe state before a vehicle collision.

[0032] Furthermore, the zero-pressure seat is also provided with a pressure sensor, and the pressure sensor is used to monitor the pressure on the zero-pressure seat. The judgment module includes:

[0033] A first receiving unit, configured to receive the pressure monitored by the pressure sensor;

[0034] A comparison unit is used to compare the pressure monitored by the pressure sensor with a preset pressure. If the pressure is greater than the preset pressure, it is determined that there is an occupant on the zero-pressure seat; otherwise, it is determined that there is no occupant on the zero-pressure seat.

[0035] Furthermore, the zero-pressure seat is further provided with a first angle sensor, and the first angle sensor is used to monitor the angle between the backrest and the seat seat of the zero-pressure seat, and the judgment module further includes:

[0036] a second receiving unit, configured to receive the angle between the backrest and the seat seat monitored by the first angle sensor;

[0037] a zero gravity determination unit, configured to determine whether the zero-pressure seat is in a zero gravity state according to the angle monitored by the first angle sensor; or

[0038] The zero-pressure seat is further provided with a first angle sensor and a second angle sensor, wherein the first angle sensor is used to monitor the angle between the backrest and the seat of the zero-pressure seat, and the second angle sensor is used to monitor the angle between the seat of the zero-pressure seat and the horizontal direction. The judgment module further includes:

[0039] a second receiving unit, configured to receive an angle between the backrest and the seat seat monitored by the first angle sensor and an angle between the seat seat and a horizontal direction monitored by the second angle sensor;

[0040] A zero gravity judgment unit is used to judge whether the zero-pressure seat is in a zero gravity state according to the sum of the angle monitored by the first angle sensor and the angle monitored by the second angle sensor.

[0041] Further, the pre-collision signal includes a time to collision, and the generating module includes:

[0042] An acquisition unit, configured to acquire the driving time according to the distance-to-collision time;

[0043] a calculation unit, configured to calculate a driving force value according to the driving time, the pressure value monitored by the pressure sensor, and the angle monitored by the first angle sensor or the sum of the angle monitored by the first angle sensor and the angle monitored by the second angle sensor;

[0044] A generating unit is used to generate a reset signal according to the driving time and the driving force value.

[0045] Furthermore, the backrest can rotate between a first position and a third position relative to the seat base, passing through a second position during the rotation. When the backrest is between the first position and the second position, the zero-pressure seat is in a safe state; when the backrest is between the second position and the third position, the zero-pressure seat is in a zero-pressure state.

[0046] Furthermore, the preset angle is equal to the angle between the second position and the third position.

[0047] The reset method and system of the vehicle zero-pressure seat of the present invention, when the vehicle has a collision risk and triggers the emergency brake, if there is an occupant on the zero-pressure seat and the seat is in a zero-pressure state, the seat controller will receive a pre-collision signal sent by the automatic emergency braking system, and send a reset signal generated according to the pre-collision signal to the drive mechanism to control the drive mechanism to drive the backrest to rotate to a preset angle, so that the zero-pressure seat is reset to a safe state before the vehicle collides, thereby allowing the occupant to meet the collision in a relatively safe posture and ensuring the safety of the occupant; the reset begins after the automatic emergency braking system triggers the emergency brake, and the automatic emergency braking system is used to assist the backrest, so that the drive mechanism can drive the backrest to reset with a smaller driving force. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 Schematic diagram of the structure of a zero-pressure seat in different states according to an exemplary embodiment of the present invention;

[0049] Figure 2 is an exploded view of a zero-pressure seat according to an exemplary embodiment of the present invention;

[0050] Figure 3 is a flow chart of a method for resetting a vehicle zero-pressure seat according to an embodiment of the present invention;

[0051] Figure 4 The figure is a structural block diagram of a vehicle zero-pressure seat resetting system according to another embodiment of the present invention. DETAILED DESCRIPTION

[0052] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings and described in detail.

[0053] like Figure 1As shown, in an exemplary embodiment, the zero-pressure seat includes a seat base 110, a backrest 120 and a driving mechanism, the backrest 120 is rotatably connected to the seat base 110, and the driving mechanism is used to drive the backrest 120 to rotate relative to the seat base 110 between a first position A and a third position C, during which the second position B is passed, wherein the first position A is a position where the angle between the backrest 120 and the vertical direction Z is α1; the second position B is a position where the angle between the backrest 120 and the vertical direction Z is α2; and the third position C is a position where the angle between the backrest 120 and the vertical direction Z is α3. When the backrest 120 is between the first position A and the second position B, the zero-pressure seat is in a safe state, and the safety state will be verified for collision when the seat is designed, so when the occupant is in this safe state, it is relatively safe; when the backrest 120 is between the second position B and the third position C, the zero-pressure seat is in a zero-pressure state, at which time the occupant is in a large lying position. If the occupant is in this zero-pressure state and is in a collision, there is a risk of diving and the safety belt cutting the neck, which is very unsafe.

[0054] The values ​​of α1, α2, and α3 can be adjusted as needed. In an exemplary embodiment, α1 = 20°, α2 = 40°, α3 = 60°, and θ = α3 - α2 = 20°.

[0055] like Figure 2 As shown, the driving mechanism may include two motors 130, the backrest 120 and the seat base 110 may be rotatably connected via a rotating shaft 140 and two backrest angle adjusters 150, the two motors 130 are both connected to the rotating shaft 140 to drive the rotating shaft 140 to rotate, the two backrest angle adjusters 150 are respectively connected to both ends of the rotating shaft 140, and the two backrest angle adjusters 150 are also connected to the seat base 110 and the backrest 120. When the two motors 130 rotate, the rotating shaft 140 is driven to rotate, and after the rotating shaft 140 rotates, the backrest angle adjusters 150 are rotated, so that the backrest 120 rotates between the first position A and the third position C relative to the seat base 110.

[0056] In order to avoid risks to passengers during a vehicle collision, an embodiment of the present invention provides a method for resetting a vehicle zero-pressure seat. Before a collision, the zero-pressure seat is quickly restored from a zero-pressure state to a safe state, thereby allowing passengers to face the collision in a relatively safe posture.

[0057] In the method for resetting a vehicle zero-pressure seat in an embodiment of the present invention, the vehicle includes an automatic emergency braking (AEB) system (not shown in the figure) and a seat controller 200, and the automatic emergency braking system is electrically connected to the seat controller 300; the seat controller 200 is connected to a driving mechanism (e.g., electrically connected or communication connected), so as to control the driving mechanism to drive the backrest 120 to rotate relative to the seat base 110. For example, the seat controller 200 can be installed on the seat base 110 and connected to the driving mechanism (e.g., electrically connected or communication connected) through a wiring harness 300.

[0058] The automatic emergency braking system is a vehicle active safety technology, mainly including three modules, namely the control module, the distance measurement module and the braking module. The core of the distance measurement module is microwave radar, face recognition technology and video system, etc., which can provide road safety, accurate and real-time images and road conditions information. The automatic emergency braking system uses radar to measure the distance of the vehicle in front or obstacles, and then compares the measured distance with the alarm distance and the safety distance. When it is less than the alarm distance, an alarm prompt (such as light alarm, sound alarm, etc.) will be issued. When it is less than the safety distance, emergency braking will be triggered, causing the vehicle to brake automatically, thereby ensuring vehicle safety. The automatic emergency braking system is an existing system on the vehicle, and its structure and principle will not be repeated here.

[0059] In some embodiments, the automatic emergency braking system may use an algorithm based on TTC (time to collision) to implement automatic braking to avoid collisions or mitigate the consequences of collisions. TTC is an indicator based on the relative speed and distance between vehicles or between vehicles and obstacles. It represents the time required to collide with the vehicle or obstacle in front under the current speed and acceleration conditions. By calculating TTC and judging whether emergency braking needs to be triggered based on a preset threshold, the magnitude of the braking force can be adjusted according to the value of TTC to adapt to different emergency braking needs. For example, when TTC = 3.6s, the automatic emergency braking system will trigger an alarm prompt; when TTC = 1.6s, emergency braking is triggered, and the braking deceleration a = 4.3m / s 2 ; When TTC = 0.6s, the braking deceleration increases to a = 7.8m / s 2 .

[0060] like Figure 3 As shown, an embodiment of the present invention provides a method for resetting a vehicle zero-pressure seat, comprising the steps of:

[0061] S1000: The seat controller 200 determines whether there is an occupant on the zero-pressure seat and whether the seat is in a zero-gravity state, and obtains a determination result.

[0062] In some embodiments, a pressure sensor and a first angle sensor may be installed on the zero-pressure seat of the vehicle. The pressure sensor is used to monitor the pressure on the zero-pressure seat, and the first angle sensor is used to monitor the angle between the backrest 120 and the seat seat 110 of the zero-pressure seat. The seat controller 200 can determine whether there is an occupant on the zero-pressure seat and whether it is in a zero-pressure state according to the pressure value monitored by the pressure sensor and the first angle sensor. For example, the pressure value monitored by the pressure sensor can be compared with a preset pressure (e.g., 200N). If it is greater than the preset pressure, it is determined that there is an occupant on the zero-pressure seat, otherwise it is determined that there is no occupant on the zero-pressure seat. The angle between the seat seat 110 and the vertical direction is usually a fixed value (e.g., 90°). Through the angle between the backrest 120 and the seat seat 110, it can be determined whether the backrest 120 is between the second position B and the third position C. If so, it is determined that the zero-pressure seat is in a zero-pressure state, otherwise, it is not in a zero-pressure state.

[0063] In some embodiments, the seat base 110 can rotate relative to the horizontal direction, so as to achieve the lifting of the seat base 110. A second angle sensor for monitoring the angle between the seat base 110 and the horizontal direction can be installed on the zero-pressure seat. According to the angle monitored by the first angle sensor and the rotation angle monitored by the second angle sensor, it can be determined whether the backrest 120 is between the second position B and the third position C, thereby determining whether the zero-pressure seat is in a zero-pressure state. For example, the angle monitored by the second angle sensor is the angle between the seat base 110 and the horizontal direction, and the angle monitored by the first angle sensor is the angle between the backrest 120 and the seat base 110. By adding the two, the angle between the backrest 120 and the horizontal direction can be obtained, and then the angle between the backrest 120 and the vertical direction can be obtained by subtracting 90° from the angle. By comparing the angle with α1, α2, and α3, it can be known whether the backrest 120 is between the second position B and the third position C, thereby determining whether the zero-pressure seat is in a zero-pressure state.

[0064] S2000: When the judgment result is that there is an occupant on the zero-pressure seat and it is in a zero-gravity state, the seat controller 200 sends the judgment result to the automatic emergency braking system, so that the automatic emergency braking system sends a pre-collision signal to the seat controller 200 after the vehicle has a collision risk and triggers emergency braking.

[0065] After the seat controller 200 obtains the judgment result, if the judgment result is that there is no occupant on the zero-pressure seat or there is an occupant on the zero-pressure seat but it is not in a zero-pressure state, then the zero-pressure seat does not need to be reset and does not need to be sent to the automatic emergency braking system. When the judgment result is that there is an occupant on the zero-pressure seat and it is in a zero-gravity state, if the occupant faces a collision in this state, then the occupant will be at risk. Therefore, the zero-pressure seat needs to be reset from the zero-gravity state to a safe state before the vehicle collides, so that the occupant can face the collision in a relatively safe posture; at this time, the seat controller 200 can send the judgment result to the automatic emergency braking system.

[0066] After the emergency brake is triggered, it usually takes some time for the vehicle to collide. During this period, the zero-pressure seat needs to be reset from the zero-pressure state to a safe state so that the occupant can face the collision in a relatively safe posture. Therefore, after the emergency brake is triggered, the automatic emergency brake system can send a pre-collision signal to the seat controller 200, so that the seat controller 200 can control the zero-pressure seat to quickly reset from the zero-position state to a safe state before the vehicle collides.

[0067] S3000: The seat controller 200 receives a pre-collision signal.

[0068] In some embodiments, the pre-collision signal may include a time until the collision, so that the seat controller 200 generates a reset signal according to the pre-collision signal.

[0069] S4000: The seat controller 200 generates a reset signal according to the pre-collision signal, and sends the reset signal to the driving mechanism, so that the driving mechanism drives the backrest 120 to rotate to a preset angle, so that the zero-pressure seat is reset from a zero-pressure state to a safe state before a vehicle collision.

[0070] After receiving the pre-collision signal, the seat controller 200 generates a reset signal and sends the reset signal to the drive mechanism. The reset signal may include information such as the value of the driving force of the drive mechanism (for example, the torque of the motor 130), the driving time (i.e., the time the drive mechanism runs), so that the reset signal controls the drive mechanism to drive the backrest 120 to rotate by a preset angle within the driving time with a driving force of a preset size, so that the backrest 120 can be reset from a zero-pressure state to a safe state before the vehicle collides. Since the safety state of the zero-pressure seat is verified by collision, it will be safer for the occupants to face a collision in this state.

[0071] In some embodiments, the preset angle can be equal to the angle θ between the second position B and the third position C, for example 20°. In this way, no matter where the backrest 120 is between the second position B and the third position C, the backrest 120 can return to between the first position A and the second position B after rotating 20° counterclockwise, thereby returning the zero-pressure seat to a safe state.

[0072] After the automatic emergency braking system triggers the emergency brake, the vehicle will be subjected to a braking force, causing the vehicle to slow down at a preset deceleration. Therefore, the occupants will be subjected to an additional forward inertia force, which will reduce the pressure of the occupants on the backrest 120, thereby reducing the driving force of the driving mechanism to rotate the backrest 120. In other words, the automatic emergency braking system has a great assisting effect on the reset of the backrest 120, so that the driving mechanism can drive the backrest 120 to reset with a smaller driving force and a shorter driving time.

[0073] In some embodiments, the driving time in the reset signal can be obtained according to TTC (for example, equal to TTC or equal to TTC-0.1s), and the value of the driving force can be determined according to the weight of the occupant, the angle between the backrest 120 and the seat 110, and the driving time. The greater the weight of the occupant, the greater the driving force required; the smaller the TTC, the shorter the time to collision, and the greater the driving force required. The value of the driving force can be calculated by the pressure monitored by the pressure sensor, the angle monitored by the first angle sensor (or the sum of the angle monitored by the first angle sensor and the angle monitored by the second angle sensor), and the TTC obtained by the automatic emergency braking system. The value of the driving force is included in the reset signal and sent to the driving mechanism. After receiving the reset signal, the driving mechanism will drive the backrest 120 to rotate in the direction of the first position A with the driving force of the value in the reset signal, so that the backrest 120 can rotate in the direction of the first position A by a preset angle within the driving time, that is, the zero-pressure seat can be reset to a safe state before the vehicle collides, so that the occupant can meet the collision in a relatively safe posture, ensuring the safety of the occupant.

[0074] like Figure 2 As shown, in an exemplary embodiment, the driving mechanism includes two motors 130, and the seat controller 200 is connected to the two motors 130 through the wiring harness 300, and sends a reset signal to the two motors 130 respectively. The reset signal includes the torque and driving time of each motor 130. After receiving the reset signal, the motor 130 rotates according to the above torque for the above driving time, so that the backrest 120 rotates a preset angle within the driving time, that is, the zero-pressure seat is reset to a safe state before the vehicle collides. In this embodiment, the power supply voltage of each motor 130 is 12V, the driving time is 1-1.5s, and the preset angle is 20°. Two 12V motors 130 can rotate the backrest 120 by 20° within 1-1.5s.

[0075] According to the method for resetting a vehicle zero-pressure seat in an embodiment of the present invention, when the vehicle is at risk of collision and the emergency brake is triggered, if there is an occupant on the zero-pressure seat and the seat is in a zero-pressure state, the seat controller 200 will receive a pre-collision signal sent by the automatic emergency braking system, and send a reset signal generated according to the pre-collision signal to the drive mechanism to control the drive mechanism to drive the backrest 120 to rotate to a preset angle, so that the zero-pressure seat is reset to a safe state before the vehicle collides, thereby allowing the occupant to meet the collision in a relatively safe posture and ensuring the safety of the occupant; the reset is started after the automatic emergency braking system triggers the emergency brake, and the automatic emergency braking system is used to assist the backrest 120, so that the drive mechanism can drive the backrest 120 to reset with a smaller driving force.

[0076] like Figure 4 As shown, another embodiment of the present invention provides a reset system for a vehicle zero-pressure seat, the vehicle includes an automatic emergency braking system, the zero-pressure seat includes a seat seat, a backrest and a driving mechanism, the zero-pressure seat has a safe state and a zero-gravity state, the backrest is rotatably connected to the seat seat, the driving mechanism is respectively connected to the backrest and the seat seat, and is used to drive the backrest to rotate relative to the seat seat, and the reset system includes a judgment module 11, a sending module 12, a receiving module 13 and a generating module 14.

[0077] The judgment module 11 is used to judge whether there is an occupant on the zero-pressure seat and whether it is in a zero-gravity state, and obtain a judgment result.

[0078] In some embodiments, the zero-pressure seat is further provided with a pressure sensor, and the pressure sensor is used to monitor the pressure on the zero-pressure seat. The judgment module 11 includes:

[0079] A first receiving unit, configured to receive the pressure monitored by the pressure sensor;

[0080] The comparison unit is used to compare the pressure monitored by the pressure sensor with a preset pressure. If the pressure is greater than the preset pressure, it is determined that there is an occupant on the zero-pressure seat; otherwise, it is determined that there is no occupant on the zero-pressure seat.

[0081] In some embodiments, the zero-pressure seat is further provided with a first angle sensor, which is used to monitor the angle between the backrest and the seat of the zero-pressure seat, and the judgment module further includes:

[0082] A second receiving unit, configured to receive the angle between the backrest 120 and the seat base 110 monitored by the first angle sensor; and

[0083] The zero-gravity judgment unit is used to judge whether the zero-pressure seat is in a zero-gravity state according to the angle monitored by the first angle sensor.

[0084] In some other embodiments, the seat base 110 can rotate relative to the horizontal direction, and the zero-pressure seat can also be provided with a second angle sensor for monitoring the angle between the seat base 110 and the horizontal direction. The judgment module may include:

[0085] A second receiving unit, for receiving an angle between the backrest 120 and the seat base 110 monitored by the first angle sensor and an angle between the seat base 110 and a horizontal direction monitored by the second angle sensor; and

[0086] The zero gravity judgment unit is used to judge whether the zero pressure seat is in a zero gravity state according to the angle monitored by the first angle sensor and the angle monitored by the second angle sensor.

[0087] The sending module 12 is used to send the judgment result to the automatic emergency braking system when the judgment result is that there is an occupant on the zero-pressure seat and it is in a zero-gravity state, so that the automatic emergency braking system sends a pre-collision signal after the vehicle has a collision risk and triggers emergency braking.

[0088] The receiving module 13 is used for receiving a pre-collision signal.

[0089] The generating module 14 is used to generate a reset signal according to the pre-collision signal, and send the reset signal to the driving mechanism so that the driving mechanism drives the backrest to rotate a preset angle, so that the zero-pressure seat is reset from a zero-pressure state to a safe state before a vehicle collision.

[0090] In some embodiments, the pre-collision signal includes the time to collision. The reset signal may include the value of the driving force of the driving mechanism and the driving time. The generation module 14 includes:

[0091] An acquisition unit, used for acquiring the driving time according to the time from the collision;

[0092] a calculation unit, configured to calculate a driving force value according to the driving time, the pressure value monitored by the pressure sensor, and the angle monitored by the first angle sensor (or the sum of the angle monitored by the first angle sensor and the angle monitored by the second angle sensor);

[0093] The generating unit is used to generate a reset signal according to the values ​​of the driving time and the driving force.

[0094] The reset system of the vehicle zero-pressure seat in the embodiment of the present invention is that when the vehicle is at risk of collision and the emergency brake is triggered, if there is an occupant on the zero-pressure seat and the seat is in a zero-pressure state, the seat controller 200 will receive the pre-collision signal sent by the automatic emergency braking system, and send the reset signal generated according to the pre-collision signal to the drive mechanism to control the drive mechanism to drive the backrest 120 to rotate to a preset angle, so that the zero-pressure seat is reset to a safe state before the vehicle collides, thereby allowing the occupant to meet the collision in a relatively safe posture and ensuring the safety of the occupant; the reset is started after the automatic emergency braking system triggers the emergency brake, and the automatic emergency braking system is used to assist the backrest 120, so that the drive mechanism can drive the backrest 120 to reset with a smaller driving force.

[0095] The systems, modules or units described in the above embodiments may be implemented by computer chips or entities, or by products with certain functions. A typical implementation device is a computer. Specifically, the computer may be, for example, a personal computer, a laptop computer, a cellular phone, a camera phone, a smart phone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.

[0096] For the convenience of description, the above device is described as being divided into various units according to their functions. Of course, when implementing the present invention, the functions of each unit can be implemented in the same or multiple software and / or hardware.

[0097] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0098] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks 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 produce 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.

[0099] 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.

[0100] 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. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0101] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0102] The memory may include non-permanent storage in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0103] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0104] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0105] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0106] The present invention may be described in the general context of computer-executable instructions executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform specific tasks or implement specific abstract data types. The present invention may also be practiced in distributed computing environments where tasks are performed by remote processing devices connected through a communication network. In a distributed computing environment, program modules may be located in local and remote computer storage media, including storage devices.

[0107] Each embodiment of the present invention is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0108] It should be noted that the present invention (e.g., the inventive concept, etc.) has been described in the specification of this patent document and / or illustrated in the drawings according to the exemplary embodiments; the embodiments of the present invention are presented only by way of example and are not intended to limit the scope of the present invention. The structure and / or arrangement of the elements of the inventive concept embodied in the present invention as described in the specification and / or illustrated in the drawings is merely illustrative. Although the exemplary embodiments of the present invention have been described in detail in this patent document, it is readily understood by those of ordinary skill in the art that equivalents, modifications, variations, etc. of the subject matter of the exemplary embodiments and alternative embodiments are possible and are considered to be within the scope of the present invention; all of these subject matters (e.g., modifications, variations, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the present invention. It should also be noted that various / other modifications, changes, substitutions, equivalents, alterations, omissions, etc. may be made in the configuration and / or arrangement of the exemplary embodiments (e.g., in terms of concepts, designs, structures, devices, forms, assemblies, constructions, means, functions, systems, processes / methods, steps, the order of process / method steps, operations, operating conditions, performances, materials, compositions, combinations, etc.) without departing from the scope of the present invention; all of these subjects (e.g., modifications, changes, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the present invention. The scope of the present invention is not intended to be limited to the subject matter (e.g., details, structures, functions, materials, behaviors, steps, sequences, systems, results, etc.) described in the specification and / or drawings of this patent document. Considering that the claims of this patent document will be appropriately interpreted as covering the full scope of the subject matter of the present invention (e.g., including any and all such modifications, changes, embodiments, combinations, equivalents, etc.); it should be understood that the terms used in this patent document are intended to provide a description of the subject matter of the exemplary embodiments, rather than as a limitation on the scope of the present invention.

[0109] It should also be noted that, depending on the exemplary embodiment, the present invention may include conventional technologies (such as technologies implemented and / or integrated in exemplary embodiments, modifications, variations, combinations, equivalents), or may include any other applicable technologies (present and / or future) with the ability to perform the functions and processes / operations described in the specification and / or illustrated in the figures. All of these technologies (such as technologies implemented in embodiments, modifications, variations, combinations, equivalents, etc.) are considered to be within the scope of the present invention of this patent document.

Claims

1. A method for resetting a zero-pressure seat of a vehicle, wherein the vehicle includes an automatic emergency braking system, the zero-pressure seat includes a seat base, a backrest and a driving mechanism, the zero-pressure seat has a safe state and a zero-gravity state, the backrest is rotatably connected to the seat base, the driving mechanism is respectively connected to the backrest and the seat base, and is used to drive the backrest to rotate relative to the seat base, characterized in that: The vehicle further includes a seat controller, wherein the seat controller is connected to the drive mechanism and the automatic emergency braking system respectively, and the method includes: The seat controller determines whether there is an occupant on the zero-pressure seat and whether the seat is in a zero-gravity state, and obtains a determination result; When the judgment result is that there is an occupant on the zero-pressure seat and the seat is in a zero-gravity state, the seat controller sends the judgment result to the automatic emergency braking system, so that the automatic emergency braking system sends a pre-collision signal to the seat controller after the vehicle has a collision risk and triggers emergency braking; The seat controller receives the pre-crash signal; The seat controller generates a reset signal according to the pre-collision signal, and sends the reset signal to the drive mechanism, so that the drive mechanism drives the backrest to rotate a preset angle, so that the zero-pressure seat is reset from a zero-pressure state to a safe state before a vehicle collision.

2. The method for resetting a vehicle zero-pressure seat according to claim 1, characterized in that: The zero-pressure seat is also provided with a pressure sensor, and the pressure sensor is used to monitor the pressure on the zero-pressure seat. The seat controller determines whether there is an occupant on the zero-pressure seat, specifically including: The seat controller receives the pressure monitored by the pressure sensor; The seat controller compares the pressure monitored by the pressure sensor with a preset pressure. If the pressure is greater than the preset pressure, it is determined that there is an occupant on the zero-pressure seat. Otherwise, it is determined that there is no occupant on the zero-pressure seat.

3. The method for resetting a vehicle zero-pressure seat according to claim 2, characterized in that: The zero-pressure seat is also provided with a first angle sensor, which is used to monitor the angle between the backrest and the seat seat of the zero-pressure seat. The seat controller determines whether the zero-pressure seat is in a zero-gravity state, specifically including: The seat seat controller receives the angle between the backrest and the seat seat monitored by the first angle sensor; The seat controller determines whether the zero-pressure seat is in a zero-gravity state according to the angle monitored by the first angle sensor; or, The zero-pressure seat is further provided with a first angle sensor and a second angle sensor, wherein the first angle sensor is used to monitor the angle between the backrest and the seat seat of the zero-pressure seat, and the second angle sensor is used to monitor the angle between the seat seat of the zero-pressure seat and the horizontal direction. The seat controller determines whether the zero-pressure seat is in a zero-gravity state, specifically including: The seat seat controller receives the angle between the backrest and the seat seat monitored by the first angle sensor and the angle between the seat seat and the horizontal direction monitored by the second angle sensor; The seat controller determines whether the zero-pressure seat is in a zero-gravity state based on the sum of the angle monitored by the first angle sensor and the angle monitored by the second angle sensor.

4. The method for resetting a vehicle zero-pressure seat according to claim 3, characterized in that: The pre-collision signal includes a time to collision, and the seat controller generates a reset signal according to the pre-collision signal, specifically including: The seat controller acquires the driving time according to the distance-to-collision time; The seat controller calculates the driving force value according to the driving time, the pressure value monitored by the pressure sensor, and the angle monitored by the first angle sensor or the sum of the angle monitored by the first angle sensor and the angle monitored by the second angle sensor; A reset signal is generated according to the driving time and the value of the driving force.

5. The method for resetting a vehicle zero-pressure seat according to claim 1, characterized in that: The backrest can rotate between a first position and a third position relative to the seat base, passing through a second position during the rotation. When the backrest is between the first position and the second position, the zero-pressure seat is in a safe state; when the backrest is between the second position and the third position, the zero-pressure seat is in a zero-pressure state.

6. The method for resetting a vehicle zero-pressure seat according to claim 5, characterized in that: The preset angle is equal to the included angle between the second position and the third position.

7. The method for resetting a vehicle zero-pressure seat according to claim 1, characterized in that: The seat controller is arranged on the seat seat.

8. A reset system for a vehicle zero-pressure seat, wherein the vehicle includes an automatic emergency braking system, the zero-pressure seat includes a seat base, a backrest and a drive mechanism, the zero-pressure seat has a safe state and a zero-gravity state, the backrest is rotatably connected to the seat base, the drive mechanism is respectively connected to the backrest and the seat base, and is used to drive the backrest to rotate relative to the seat base, characterized in that: The reset system comprises: A judgment module, used for judging whether there is an occupant on the zero-pressure seat and whether the seat is in a zero-gravity state, and obtaining a judgment result; a sending module, configured to send the judgment result to the automatic emergency braking system when the judgment result is that there is an occupant on the zero-pressure seat and the seat is in a zero-gravity state, so that the automatic emergency braking system sends a pre-collision signal after the vehicle has a collision risk and triggers emergency braking; a receiving module, configured to receive the pre-collision signal; and A generating module is used to generate a reset signal according to the pre-collision signal, and send the reset signal to the driving mechanism, so that the driving mechanism drives the backrest to rotate a preset angle, so that the zero-pressure seat is reset from a zero-pressure state to a safe state before a vehicle collision.

9. The vehicle zero-pressure seat resetting system according to claim 8, characterized in that: The zero-pressure seat is also provided with a pressure sensor, and the pressure sensor is used to monitor the pressure on the zero-pressure seat. The judgment module includes: A first receiving unit, configured to receive the pressure monitored by the pressure sensor; A comparison unit is used to compare the pressure monitored by the pressure sensor with a preset pressure. If the pressure is greater than the preset pressure, it is determined that there is an occupant on the zero-pressure seat; otherwise, it is determined that there is no occupant on the zero-pressure seat.

10. The vehicle zero-pressure seat resetting system according to claim 9, characterized in that: The zero-pressure seat is also provided with a first angle sensor, and the first angle sensor is used to monitor the angle between the backrest and the seat seat of the zero-pressure seat. The judgment module also includes: a second receiving unit, configured to receive the angle between the backrest and the seat seat monitored by the first angle sensor; a zero gravity determination unit, configured to determine whether the zero-pressure seat is in a zero gravity state according to the angle monitored by the first angle sensor; or The zero-pressure seat is further provided with a first angle sensor and a second angle sensor, wherein the first angle sensor is used to monitor the angle between the backrest and the seat of the zero-pressure seat, and the second angle sensor is used to monitor the angle between the seat of the zero-pressure seat and the horizontal direction. The judgment module further includes: a second receiving unit, configured to receive an angle between the backrest and the seat seat monitored by the first angle sensor and an angle between the seat seat and a horizontal direction monitored by the second angle sensor; A zero gravity judgment unit is used to judge whether the zero-pressure seat is in a zero gravity state according to the sum of the angle monitored by the first angle sensor and the angle monitored by the second angle sensor.

11. The vehicle zero-pressure seat resetting system according to claim 10, characterized in that: The pre-collision signal includes a time to collision, and the generating module includes: An acquisition unit, configured to acquire the driving time according to the distance-to-collision time; a calculation unit, configured to calculate a driving force value according to the driving time, the pressure value monitored by the pressure sensor, and the angle monitored by the first angle sensor or the sum of the angle monitored by the first angle sensor and the angle monitored by the second angle sensor; A generating unit is used to generate a reset signal according to the driving time and the driving force value.

12. The vehicle zero-pressure seat resetting system according to claim 8, characterized in that: The backrest can rotate between a first position and a third position relative to the seat base, passing through a second position during the rotation. When the backrest is between the first position and the second position, the zero-pressure seat is in a safe state; when the backrest is between the second position and the third position, the zero-pressure seat is in a zero-pressure state.

13. The vehicle zero-pressure seat resetting system according to claim 12, characterized in that: The preset angle is equal to the included angle between the second position and the third position.

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