Method and system for resetting a zero pressure seat of a vehicle

Abstract

This invention relates to a method and system for resetting a zero-pressure seat in a vehicle. The method includes: a seat controller determining whether there is an occupant on the zero-pressure seat and whether it is in a zero-gravity state, obtaining a determination result; when the determination result indicates that there is an occupant on the zero-pressure seat and it is in a zero-gravity state, the seat controller sends the determination result to the automatic emergency braking system, so that the 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; the seat controller generates a reset signal based on the pre-collision signal and sends the reset signal to a drive mechanism, so that the drive mechanism drives the backrest to rotate by a preset angle, thereby resetting the zero-pressure seat from a zero-pressure state to a safe state before a vehicle collision. The vehicle zero-pressure seat reset method and system of this invention quickly restores the zero-pressure seat from a zero-gravity state to a safe state before a vehicle collision, thus allowing the occupant to face the collision in a relatively safe posture.

Description

Technical Field

[0001] This invention relates to the field of vehicle zero-pressure seat technology, and more specifically to a method and system for resetting a vehicle zero-pressure seat. Background Technology

[0002] Zero-pressure seats are high-tech seats designed based on ergonomic principles and the physiological curves of the human body. In a zero-pressure posture, they can provide even and comfortable support for the body, keeping the parts of the body in contact with the body for a long time in a pressure-free state, thereby reducing the physical pressure on drivers and passengers and approaching a zero-pressure suspension state.

[0003] The zero-pressure seat has a safe mode and a zero-gravity mode. In the safe mode, the occupant is in a normal posture, and in the zero-gravity mode, the occupant is in a fully reclined position. By adjusting the angle of the backrest, the zero-pressure seat can switch between the safe mode and the zero-gravity mode. During the seat design process, crash tests are conducted in the safe mode. Therefore, if the zero-pressure seat is in the safe mode during a vehicle collision, the occupant will be relatively safe.

[0004] Because zero-pressure seats allow occupants to lie down in a zero-gravity state, if a collision occurs at this time, occupants are at risk of being thrown forward and having their necks cut by the seat belt, which is extremely unsafe. Summary of the Invention

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

[0006] To achieve the above objectives, the present invention provides a method for resetting a zero-pressure seat in a vehicle. The vehicle includes an automatic emergency braking system, and 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 connected to both the backrest and the seat base and is used to drive the backrest to rotate relative to the seat base. The vehicle also includes a seat controller, which is connected to both the drive mechanism and the automatic emergency braking system. The method includes:

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

[0008] When the judgment result is that there is an occupant in 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-collision signal;

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

[0011] Furthermore, the zero-pressure seat is also equipped with a pressure sensor, which 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 determines that there is an occupant on the zero-pressure seat; otherwise, it determines that there is no occupant on the zero-pressure seat.

[0014] Furthermore, the zero-pressure seat is also equipped with a first angle sensor, which is used to monitor the angle between the backrest and the 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 controller receives the angle between the backrest and the seat monitored by the first angle sensor;

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

[0017] The zero-pressure seat is also equipped with a first angle sensor and a second angle sensor. 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 seat controller determines whether the zero-pressure seat is in a zero-gravity state, specifically including:

[0018] The seat controller receives the angle between the backrest and the seat monitored by the first angle sensor and the angle between the 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 angles detected by the first angle sensor and the second angle sensor.

[0020] Furthermore, the pre-collision signal includes the time elapsed since the collision, and the seat controller generates a reset signal based on the pre-collision signal, specifically including:

[0021] The seat controller obtains the driving time based on the time of the distance collision;

[0022] The seat controller calculates the driving force value based on 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 based on the driving time and the value of the driving force.

[0024] Furthermore, the backrest can rotate relative to the seat between a first position and a third position, passing through a second position. 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 located on the seat.

[0027] Another aspect 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, 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. The drive mechanism is connected to both the backrest and the seat, and is used to drive the backrest to rotate relative to the seat. The reset system includes:

[0028] The judgment module is used to determine whether there are occupants on the zero-pressure seat and whether it is in a zero-gravity state, and obtain the judgment result;

[0029] The sending module is used to send the judgment result to the automatic emergency braking system when the judgment result is that there is an occupant in the zero-pressure seat and the 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 is configured to receive the pre-collision signal; and

[0031] The generation module is used to generate a reset signal based on the pre-collision signal and send the reset signal to the drive mechanism so that the drive mechanism drives the backrest to rotate by a preset angle, so that the zero-pressure seat resets from the zero-pressure state to a safe state before the vehicle collision.

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

[0033] The first receiving unit is used to receive the pressure monitored by the pressure sensor;

[0034] 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.

[0035] Furthermore, the zero-pressure seat is also equipped with a first angle sensor, which is used to monitor the angle between the backrest and the seat of the zero-pressure seat. The judgment module also includes:

[0036] The second receiving unit is used to receive the angle between the backrest and the seat monitored by the first angle sensor;

[0037] The zero-gravity determination unit is used to determine whether the zero-pressure seat is in a zero-gravity state based on the included angle monitored by the first angle sensor; or,

[0038] The zero-pressure seat is also equipped with a first angle sensor and a second angle sensor. 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] The second receiving unit is used to receive the angle between the backrest and the seat monitored by the first angle sensor and the angle between the seat and the horizontal direction monitored by the second angle sensor.

[0040] The zero-gravity determination unit is used to determine whether the zero-pressure seat is in a zero-gravity state based on the sum of the included angles detected by the first angle sensor and the second angle sensor.

[0041] Furthermore, the pre-collision signal includes the time from the collision, and the generation module includes:

[0042] The acquisition unit is used to acquire the driving time based on the time of the collision at the distance;

[0043] The calculation unit is used to calculate the value of the driving force based on the driving time, the pressure value monitored by the pressure sensor, and the included angle monitored by the first angle sensor or the sum of the included angle monitored by the first angle sensor and the included angle monitored by the second angle sensor.

[0044] A generation unit is used to generate a reset signal based on the driving time and the value of the driving force.

[0045] Furthermore, the backrest can rotate relative to the seat between a first position and a third position, passing through a second position. 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 vehicle zero-pressure seat reset method and system of the present invention, when the vehicle is at risk of collision and emergency braking is triggered, if there is an occupant on the zero-pressure seat and it 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 a preset angle, so that the zero-pressure seat is reset to a safe state before the vehicle collision, thereby allowing the occupant to face the collision in a relatively safe posture and ensuring the safety of the occupant; after the automatic emergency braking system triggers emergency braking, the reset begins, and the assistance of the automatic emergency braking system to the backrest allows the drive mechanism to drive the backrest to reset with a smaller driving force. Attached Figure Description

[0048] Figure 1 This is a structural schematic diagram of a zero-pressure seat under different states according to an exemplary embodiment of the present invention;

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

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

[0051] Figure 4 This is a structural block diagram of a vehicle zero-pressure seat reset system according to another embodiment of the present invention. Detailed Implementation

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

[0053] like Figure 1As shown, in an exemplary embodiment, the zero-pressure seat includes a seat 110, a backrest 120, and a drive mechanism. The backrest 120 is rotatably connected to the seat 110. The drive mechanism drives the backrest 120 to rotate relative to the seat 110 between a first position A and a third position C, passing through a second position B. 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. This safe state is verified during the seat design process, so the occupant is relatively safe when encountering a collision in this state. 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. In this state, the occupant is in a reclining posture. If encountering a collision in this zero-pressure state, the occupant faces the risk of being thrown forward and having their neck cut by the seatbelt, which is extremely 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 drive mechanism may include two motors 130. The backrest 120 and the seat 110 are rotatably connected via a shaft 140 and two backrest adjusters 150. Both motors 130 are connected to the shaft 140 to drive it to rotate. The two backrest adjusters 150 are respectively connected to both ends of the shaft 140 and are also connected to the seat 110 and the backrest 120. When the two motors 130 rotate, they drive the shaft 140 to rotate. The rotation of the shaft 140 causes the backrest adjusters 150 to rotate, thereby allowing the backrest 120 to rotate relative to the seat 110 between a first position A and a third position C.

[0056] To avoid risks to occupants during a vehicle collision, this invention provides a method for resetting a zero-pressure seat in a vehicle. Before a collision, the zero-pressure seat is quickly restored from a zero-pressure state to a safe state, thereby allowing occupants to face the collision in a relatively safe posture.

[0057] In the vehicle zero-pressure seat reset method of this embodiment of the invention, the vehicle includes an Automatic Emergency Braking (AEB) system (not shown in the figure) and a seat controller 200. The AEB system is electrically connected to the seat controller 200. The seat controller 200 is connected to a drive mechanism (e.g., electrical or communication connection) to control the drive mechanism to drive the backrest 120 to rotate relative to the seat seat 110. For example, the seat controller 200 may be mounted on the seat seat 110 and connected to the drive mechanism via a wiring harness 300 (e.g., electrical or communication connection).

[0058] Automatic emergency braking (AEM) is an active vehicle safety technology that primarily comprises three modules: a control module, a ranging module, and a braking module. The ranging module's core components include microwave radar, facial recognition technology, and a video system, providing accurate and real-time images and road condition information. AEM uses radar to measure the distance to the vehicle ahead or an obstacle, then compares this distance to a warning distance and a safe distance. If the distance is less than the warning distance, an alarm is triggered (e.g., lights or sound). If the distance is less than the safe distance, emergency braking is activated, automatically braking the vehicle to ensure safety. AEM is an existing system in vehicles, and its structure and principles will not be detailed here.

[0059] In some embodiments, the automatic emergency braking system may employ an algorithm based on TTC (Time to Collision) to achieve automatic braking, thereby avoiding or mitigating collisions. TTC is an indicator based on the relative speed and distance between vehicles or between a vehicle and an obstacle. It represents the time required for a collision with the vehicle or obstacle ahead under current speed and acceleration conditions. By calculating TTC and determining whether emergency braking needs to be triggered based on a preset threshold, the braking force can be adjusted according to the TTC value to adapt to different emergency braking requirements. For example, when TTC = 3.6s, the automatic emergency braking system will trigger an alarm; when TTC = 1.6s, emergency braking is triggered, and the braking deceleration a = 4.3 m / s². 2 When TTC = 0.6s, the braking deceleration increases to a = 7.8m / s². 2 .

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

[0061] S1000: The seat controller 200 determines whether there is an occupant on the zero-pressure seat and whether it is in a zero-gravity state, and obtains the judgment 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 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 based on the pressure value monitored by the pressure sensor and the first angle sensor reading. 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 110 and the vertical direction is usually a fixed value (e.g., 90°). By measuring the angle between the backrest 120 and the seat 110, it can be determined whether the backrest 120 is between the second position B and the third position C. If it is, 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 110 can rotate relative to the horizontal direction, thereby raising the seat 110. A second angle sensor can be installed on the zero-pressure seat to monitor the angle between the seat 110 and the horizontal direction. Based on the angle detected by the first angle sensor and the rotation angle detected 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 detected by the second angle sensor is the angle between the seat 110 and the horizontal direction, and the angle detected by the first angle sensor is the angle between the backrest 120 and the seat 110. By adding the two, the angle between the backrest 120 and the horizontal direction can be obtained. Then, 90° is subtracted from it to obtain the angle between the backrest 120 and the vertical direction. Comparing this angle with α1, α2, and α3, 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.

[0064] S2000: When the judgment result is that there is an occupant in the zero-pressure seat and the seat controller 200 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 receiving the judgment result, if the judgment result is that there is no occupant in the zero-pressure seat or that there is an occupant in the zero-pressure seat but 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. If the judgment result is that there is an occupant in the zero-pressure seat and in a zero-gravity state, then if the occupant is to be in this state in a collision, then the occupant will be at risk. Therefore, the zero-pressure seat needs to be reset from a zero-gravity state to a safe state before the vehicle collision, so that the occupant can be in a relatively safe posture to meet the collision. In this case, the seat controller 200 can send the judgment result to the automatic emergency braking system.

[0066] After emergency braking is triggered, the vehicle typically takes some time before a collision occurs. During this time, the run-flat seats need to be reset from a run-flat state to a safe state so that the occupants can face the collision in a relatively safe posture. Therefore, after emergency braking is triggered, the automatic emergency braking system can send a pre-collision signal to the seat controller 200 so that the seat controller 200 can control the run-flat seats to quickly reset from a run-flat state to a safe state before the vehicle collision.

[0067] S3000: Seat controller 200 receives pre-collision signals.

[0068] In some embodiments, the pre-collision signal may include the time from the collision so that the seat controller 200 can generate a reset signal based on the pre-collision signal.

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

[0070] Upon receiving a pre-collision signal, the seat controller 200 generates a reset signal and sends it to the drive mechanism. This reset signal may include information such as the driving force of the drive mechanism (e.g., the torque of the motor 130) and the driving time (i.e., the duration of the drive mechanism's operation). The reset signal controls the drive mechanism to rotate the backrest 120 by a preset angle with a preset driving force within the driving time, thus enabling the backrest 120 to reset from a zero-pressure state to a safe state before a vehicle collision. Since the safety state of a zero-pressure seat has been crash-tested, occupants are safer in this state during a collision.

[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, after the backrest 120 rotates counterclockwise by 20°, it can return to the position between the first position A and the second position B, thereby returning the zero-pressure seat to a safe state.

[0072] When the automatic emergency braking system triggers emergency braking, the vehicle will be subjected to a braking force, causing the vehicle to decelerate at a preset deceleration. As a result, the occupants will be subjected to an additional forward inertial force. This inertial force will reduce the pressure of the occupants on the backrest 120, thereby reducing the driving force required by the drive mechanism to rotate the backrest 120. In other words, the automatic emergency braking system greatly assists in the reset of the backrest 120, allowing the drive mechanism to reset the backrest 120 with less driving force and a shorter driving time.

[0073] In some embodiments, the drive time in the reset signal can be obtained based on TTC (e.g., equal to TTC or equal to TTC-0.1s). The value of the drive force can be determined based on the occupant's weight, the angle between the backrest 120 and the seat 110, and the drive time. The greater the occupant's weight, the greater the required drive force; the smaller the TTC, the shorter the time to collision, and therefore the greater the required drive force. The value of the drive force can be calculated using the pressure monitored by the pressure sensor, the angle monitored by the first angle sensor (or the sum of the angles monitored by the first angle sensor and the second angle sensor), and the TTC obtained by the automatic emergency braking system. This value of the drive force is included in the reset signal and sent to the drive mechanism. After receiving the reset signal, the drive mechanism will drive the backrest 120 to rotate towards the first position A with the drive force of the value in the reset signal. This allows the backrest 120 to rotate a preset angle towards the first position A within the drive time, ensuring that the zero-pressure seat can be reset to a safe state before a vehicle collision, allowing the occupant to face the collision in a relatively safe posture and ensuring the occupant's safety.

[0074] like Figure 2 As shown, in an exemplary embodiment, the drive mechanism includes two motors 130. The seat controller 200 is connected to the two motors 130 via a wiring harness 300 and sends reset signals to each motor 130. The reset signals include the torque and drive time of each motor 130. Upon receiving the reset signal, the motor 130 rotates according to the specified torque and drive time, thereby causing the backrest 120 to rotate a preset angle within the drive time, thus resetting the zero-pressure seat to a safe state before a vehicle collision. In this embodiment, the power supply voltage of each motor 130 is 12V, the drive time is 1-1.5s, and the preset angle is 20°. The two 12V motors 130 can cause the backrest 120 to rotate 20° within 1-1.5s.

[0075] The vehicle zero-pressure seat reset method of this embodiment of the invention, when the vehicle is at risk of collision and emergency braking is triggered, if there is an occupant on the zero-pressure seat and it 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 a preset angle, so that the zero-pressure seat is reset to a safe state before the vehicle collision, thereby allowing the occupant to face the collision in a relatively safe posture and ensuring the safety of the occupant; after the automatic emergency braking system triggers emergency braking, the reset begins, and the assistance of the automatic emergency braking system to the backrest 120 allows the drive mechanism to 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, 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. The drive mechanism is connected to the backrest and the seat respectively and is used to drive the backrest to rotate relative to the seat. 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 determine whether there are occupants on the zero-pressure seat and whether it is in a zero-gravity state, and obtain the judgment result.

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

[0079] The first receiving unit is used 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 the preset pressure. If the pressure is greater than the preset pressure, it is determined that there is an occupant in the zero-pressure seat; otherwise, it is determined that there is no occupant in 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. The determination module further includes:

[0082] The second receiving unit is used to receive the angle between the backrest 120 and the seat 110 monitored by the first angle sensor; and

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

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

[0085] The second receiving unit is used to receive the angle between the backrest 120 and the seat 110 monitored by the first angle sensor and the angle between the seat 110 and the horizontal direction monitored by the second angle sensor; and

[0086] The zero-gravity judgment unit is used to determine whether the zero-pressure seat is in a zero-gravity state based on the angle detected by the first angle sensor and the angle detected 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 in the zero-pressure seat and the 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 to receive the pre-collision signal.

[0089] The generation module 14 is used to generate a reset signal based on the pre-collision signal and send 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 the zero-pressure state to the safe state before the vehicle collision.

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

[0091] The acquisition unit is used to obtain the driving time based on the time of the collision.

[0092] The calculation unit is used to calculate the value of the driving force based on the driving time, the pressure value monitored by the pressure sensor and the included angle monitored by the first angle sensor (or the sum of the included angle monitored by the first angle sensor and the included angle monitored by the second angle sensor).

[0093] The generation unit is used to generate a reset signal based on the driving time and the value of the driving force.

[0094] In the vehicle zero-pressure seat reset system of this embodiment of the invention, when the vehicle is at risk of collision and emergency braking is triggered, if there is an occupant on the zero-pressure seat and it 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 a preset angle, so that the zero-pressure seat is reset to a safe state before the vehicle collision, thereby allowing the occupant to face the collision in a relatively safe posture and ensuring the safety of the occupant; after the automatic emergency braking system triggers emergency braking, the reset begins, and the assistance of the automatic emergency braking system to the backrest 120 allows the drive mechanism to drive the backrest 120 to reset with a smaller driving force.

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

[0096] For ease of description, the above apparatus is described in terms of its functions, divided into various units. Of course, in implementing this invention, the functions of each unit can be implemented in one or more software and / or hardware components.

[0097] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied 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] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0099] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0100] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function 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] Memory may include non-persistent storage in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0103] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, 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 technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0104] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0105] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied 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.

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

[0107] The various embodiments in this invention are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0108] It should be noted that the present invention (e.g., inventive concepts, etc.) has been described in the specification of this patent document and / or illustrated in the figures according to exemplary embodiments; embodiments of the present invention are presented by way of example only and are not intended to limit the scope of the invention. The structure and / or arrangement of elements of the inventive concept embodied in the present invention as described in the specification and / or illustrated in the figures are merely illustrative. Although exemplary embodiments of the present invention have been described in detail in this patent document, it will be readily understood by those skilled in the art that equivalents, modifications, variations, etc., of the subject matter of the exemplary and alternative embodiments are possible and are considered to be within the scope of the present invention; all such subject matter (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 modifications, variations, substitutions, equivalents, alterations, omissions, etc., may be made in the configuration and / or arrangement of exemplary embodiments (e.g., in terms of concept, design, structure, device, form, assembly, construction, means, function, system, process / method, steps, sequence of process / method steps, operation, operating conditions, performance, materials, composition, combination, etc.) without departing from the scope of the invention; all such subject matter (e.g., modifications, variations, embodiments, combinations, equivalents, etc.) is intended to be included within the scope of the invention. The scope of the invention is not intended to be limited to the subject matter described in the specification and / or figures of this patent document (e.g., details, structure, function, materials, behavior, steps, sequence, system, result, etc.). Considering that the claims of this patent document will be properly interpreted to cover the full scope of the subject matter of the invention (e.g., including any and all such modifications, variations, embodiments, combinations, equivalents, etc.); it should be understood that the terminology used in this patent document is for the purpose of providing a description of the subject matter of exemplary embodiments and not as a limitation on the scope of the invention.

[0109] It should also be noted that, according to exemplary embodiments, the present invention may include conventional techniques (e.g., techniques implemented and / or integrated in exemplary embodiments, modifications, variations, combinations, equivalents, etc.), or may include any other applicable techniques (now and / or in the future) with the ability to perform the functions and processes / operations described in the specification and / or illustrated in the figures. All such techniques (e.g., techniques implemented in the manner of 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 in a vehicle, the vehicle including an automatic emergency braking system, the zero-pressure seat including a seat, a backrest, and a drive mechanism, the zero-pressure seat having a safe state and a zero-gravity state, the backrest being rotatably connected to the seat, and the drive mechanism being connected to both the backrest and the seat, for driving the backrest to rotate relative to the seat, characterized in that, The vehicle also includes a seat controller, which is connected to both the drive mechanism and the automatic emergency braking system. The method includes: The seat controller determines whether there is an occupant on the zero-pressure seat and whether it is in a zero-gravity state, and obtains the determination result. When the determination result indicates that there is an occupant in the zero-pressure seat and the vehicle is in a zero-gravity state, the seat controller sends the determination 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 pre-collision signal includes the time from the collision. The seat controller receives the pre-collision signal; The seat controller generates a reset signal based on the pre-collision signal and sends the reset signal to the drive mechanism, so that the drive mechanism drives the backrest to rotate by a preset angle, so that the zero-pressure seat resets from a zero-pressure state to a safe state before a vehicle collision; the reset signal includes the values ​​of drive time and drive force; after the automatic emergency braking system triggers emergency braking, the drive mechanism rotates the backrest to reduce the drive force by utilizing the forward inertial force of the occupant during emergency braking to assist the backrest.

2. The reset method of a zero pressure seat of a vehicle according to claim 1, characterized by, The zero-pressure seat is also equipped with a pressure sensor, which 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 determines that there is an occupant on the zero-pressure seat; otherwise, it determines 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 equipped with a first angle sensor, which is used to monitor the angle between the backrest and the 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 controller receives the angle between the backrest and the seat monitored by the first angle sensor; The seat controller determines whether the zero-pressure seat is in a zero-gravity state based on the included angle monitored by the first angle sensor; or, The zero-pressure seat is also equipped with a first angle sensor and a second angle sensor. 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 seat controller determines whether the zero-pressure seat is in a zero-gravity state, specifically including: The seat controller receives the angle between the backrest and the seat monitored by the first angle sensor and the angle between the 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 angles detected by the first angle sensor and the second angle sensor.

4. The reset method of a zero pressure seat of a vehicle according to claim 3, characterized by, The seat controller generates a reset signal based on the pre-collision signal, specifically including: The seat controller obtains the driving time based on the time of the distance collision; The seat controller calculates the driving force value based on 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 based on the driving time and the value of the driving force.

5. The reset method of a zero voltage seat of a vehicle according to claim 1, characterized by, The backrest can rotate relative to the seat between a first position and a third position, passing through a second position. 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 angle between the second position and the third position.

7. The reset method of a zero voltage seat of a vehicle according to claim 1, characterized by, The seat controller is located on the seat.

8. A reset system for a vehicle zero-pressure seat, the vehicle including an automatic emergency braking system, the zero-pressure seat including a seat, a backrest, and a drive mechanism, the zero-pressure seat having a safe state and a zero-gravity state, the backrest being rotatably connected to the seat, and the drive mechanism being connected to both the backrest and the seat for driving the backrest to rotate relative to the seat, characterized in that, The reset system includes: The judgment module is used to determine whether there are occupants on the zero-pressure seat and whether it is in a zero-gravity state, and obtain the judgment result; The sending module is configured to send the judgment result to the automatic emergency braking system when the judgment result is that there is an occupant in the zero-pressure seat and the 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; the pre-collision signal includes the time from the collision. A receiving module is configured to receive the pre-collision signal; and The generation module is used to generate a reset signal based on the pre-collision signal and send the reset signal to the drive mechanism so that the drive mechanism drives the backrest to rotate by a preset angle, so that the zero-pressure seat resets from a zero-pressure state to a safe state before the vehicle collision; the reset signal includes the values ​​of drive time and drive force; after the automatic emergency braking system triggers emergency braking, the drive mechanism rotates the backrest to reduce the drive force by utilizing the forward inertial force of the occupant during emergency braking to assist the backrest.

9. The vehicle zero-pressure seat reset system according to claim 8, characterized in that, The zero-pressure seat is also equipped with a pressure sensor, which is used to monitor the pressure on the zero-pressure seat. The judgment module includes: The first receiving unit is used to receive the pressure monitored by the pressure sensor; 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.

10. The reset system of a zero pressure seat of a vehicle according to claim 9, wherein The zero-pressure seat is also equipped with a first angle sensor, which is used to monitor the angle between the backrest and the seat of the zero-pressure seat. The judgment module further includes: The second receiving unit is used to receive the angle between the backrest and the seat monitored by the first angle sensor; The zero-gravity determination unit is used to determine whether the zero-pressure seat is in a zero-gravity state based on the included angle monitored by the first angle sensor; or, The zero-pressure seat is also equipped with a first angle sensor and a second angle sensor. 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: The second receiving unit is used to receive the angle between the backrest and the seat monitored by the first angle sensor and the angle between the seat and the horizontal direction monitored by the second angle sensor. The zero-gravity determination unit is used to determine whether the zero-pressure seat is in a zero-gravity state based on the sum of the included angles detected by the first angle sensor and the second angle sensor.

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

12. The reset system of a zero pressure seat of a vehicle according to claim 8, wherein The backrest can rotate relative to the seat between a first position and a third position, passing through a second position. 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 reset system according to claim 12, characterized in that, The preset angle is equal to the angle between the second position and the third position.

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