Seat adjustment device during a vehicle collision

Abstract

The application relates to a seat adjusting device in a vehicle collision process and belongs to the technical field of vehicle collision prevention. The seat adjusting device comprises a lateral overturning assembly, a sliding assembly, a seat body, a sensing module and a control module. The seat body is connected with the bottom of a passenger space of a vehicle body through the lateral overturning assembly and the sliding assembly. The seat body slides away from a side of the vehicle body that is impacted under the drive of the sliding assembly. The seat body overturns away from the side of the vehicle body that is impacted under the drive of the lateral overturning assembly. The sensing module comprises four acceleration sensor arrays arranged on four sides of a vehicle shell respectively. Any acceleration sensor array is used for measuring the acceleration of the shell and uploading to the control module in real time. The control module is electrically connected with the lateral overturning assembly, the sliding assembly and the sensing module and controls the running time of the lateral overturning assembly, the sliding assembly and the sensing module. The seat adjusting device can change the evasion distance according to the impact severity while considering the two evasion schemes of translation and overturning.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of automobile anti-collision, and particularly relates to a seat adjusting device in a vehicle collision process. BACKGROUND

[0002] With the improvement of people's living standards, the popularization rate of automobiles is also increasing. However, the speed of the automobile not only brings people convenience, but also increases the consequences when an accident occurs. When the automobile collides in front and back, the human body will quickly rush forward due to inertia, collide with the internal parts of the vehicle, and cause the human body to be injured. In addition to the risk of frontal and rear impact, there is also a probability of lateral impact. Compared with frontal impact, in side impact, the serious deformation of the automobile door sill will cause the lateral passenger cabin space to be squeezed. Due to the small collision area and low lateral structure stiffness, side impact is more dangerous, which directly affects the safety of passengers. Therefore, Chinese patent CN100445151C discloses a passenger car side impact seat tilting device, which comprises an inclined tilting rod. One end of the inclined tilting rod is fixed on the vehicle body floor near the power channel of the vehicle body, and the other end is fixedly connected with the B-pillar on both sides of the vehicle body and has an inclination angle with the vehicle body floor. During the process of a side impact accident of the automobile, the impact side B-pillar drives the inclined tilting rod to rotate around the fulcrum on the vehicle body floor under the action of the impact force, and simultaneously pushes the seat and the passenger to tilt, which can prevent the impact side B-pillar and the door from directly impacting the passenger's body. At the same time, it is beneficial to the full opening of the side airbag. The inclined tilting rod increases the stiffness of the impacted side, which is beneficial to reducing the deformation amount of the impact side B-pillar and the door, reducing the deformation speed of the impact side B-pillar and the door, and reducing the personal injury of the passenger caused by the side impact of the automobile.

[0003] However, when the vehicle is subjected to a side impact, the impact point is not always located on the tilting rod. The seat adjusting device adopting the above scheme cannot make the seat tilt away from the impact point in this case. When the rest of the side wall of the vehicle body approaches the human body, especially the upper body, under the action of the impact, it still poses a fatal threat to the passenger. At the same time, in the existing seat adjusting scheme, whether the seat is translated or tilted, the displacement degree cannot be changed according to the severity of the impact. Since the space in the vehicle is limited and usually carries other passengers, when the displacement degree of the seat is too low, it will lead to insufficient safety and cannot avoid the impact between the human body and the vehicle body. When the displacement degree of the seat is too high, it is easy to invade the space of other passengers, causing the secondary disaster of the collision between the remaining passengers and the seat. Therefore, a seat adjusting device in a vehicle collision process is needed, which can change the avoidance distance according to the severity of the impact while considering both translation and tilting avoidance schemes. SUMMARY

[0004] To solve the above problems in the prior art, the application provides a seat adjusting device in a vehicle collision process, which has the characteristics of considering both translation and overturning avoidance schemes and changing avoidance distance according to the severity of the impact.

[0005] The object of the application can be achieved by the following technical solutions:

[0006] A seat adjusting device in a vehicle collision process, comprising a lateral overturning assembly, a sliding assembly, a seat body, a sensing module and a control module, the bottom surface of the lateral overturning assembly is connected with the bottom of the passenger space of the vehicle body, the top of the lateral overturning assembly is connected with the bottom of the sliding assembly, the seat body is arranged on the top of the sliding assembly and slides away from the side of the vehicle impacted by the sliding assembly, and the lateral overturning assembly is used for overturning the sliding assembly and the seat body away from the side of the vehicle impacted.

[0007] The sensing module is arranged on the surface of the vehicle shell, the sensing module comprises four acceleration sensor arrays arranged on the four sides of the vehicle shell respectively, any acceleration sensor array is used for measuring the acceleration of the shell and uploading the data to the control module in real time, the control module is electrically connected with the lateral overturning assembly, the sliding assembly and the sensing module respectively, the acceleration thresholds a and b are pre-input in the control module, wherein a < b, and the standard operation time c of the lateral overturning assembly and the sliding assembly is pre-input in the control module.

[0008] Wherein, a < b.

[0009] When the control module receives the data > a uploaded by more than or equal to 10% of the sensors in the same sensor array, the lateral overturning assembly or the sliding assembly is operated for 0.5c seconds.

[0010] When the control module receives the data > b uploaded by more than or equal to 20% of the sensors in the same sensor array, the lateral overturning assembly or the sliding assembly is operated for c seconds.

[0011] As a preferred technical solution of the application, when the control module receives the data > a uploaded by more than or equal to 10% of the sensors in the same sensor array while more than or equal to 10% of the sensors are out of connection, the lateral overturning assembly or the sliding assembly is operated for 50c seconds.

[0012] As a preferred technical solution of the application, the sliding assembly comprises a lateral slide rail group and a forward slide rail group perpendicular to each other in the same plane, the forward slide rail group and the lateral slide rail group each comprise two parallel driving slide rails and two drivers arranged corresponding to the two driving slide rails, the forward slide rail group is arranged parallel to the forward direction of the vehicle, the seat body is linked to the top of the forward slide rail group and the lateral slide rail group, and the bottom of the forward slide rail group is connected with the top of the lateral overturning assembly.

[0013] As a preferred technical solution of the present application, the lateral overturning assembly comprises a hinge and two telescopic rods, the hinge is arranged at the vehicle chassis and is hinged with the inner one of the drive slide rails in the forward slide rail group, the two telescopic rods are each hinged at one end with the vehicle chassis and at the other end with the outer one of the drive slide rails in the forward slide rail group, and each of the two telescopic rods is provided with a driver.

[0014] As a preferred technical solution of the present application, the drivers are each a high-pressure gas tank, which makes the drive slide rail slide or the telescopic rod extend.

[0015] As a preferred technical solution of the present application, a support assembly is further included, which is embedded in the seat body, and the control module is electrically connected with the support assembly to instruct the support assembly to extend and support the safety space between the seat and the top of the vehicle shell.

[0016] As a preferred technical solution of the present application, a chair back overturning assembly is further included, which is arranged in the seat body and is used to overturn the chair back of the seat body, and the control module is electrically connected with the chair back overturning assembly and drives the chair back overturning assembly according to the data of the sensing module.

[0017] As a preferred technical solution of the present application, an override button is further included, which is electrically connected with the control module and is used to start the lateral overturning assembly and the sliding assembly, and the control module gives priority to the command of the override button.

[0018] The present application has the following beneficial effects:

[0019] (1) By pre-inputting the values of a, b and c in the control module, electrically connecting the control module with a plurality of groups of acceleration sensors, and making the control module judge the accident level according to the proportion of the uploaded data exceeding the threshold value, the severity of the accident is judged, the number of lost acceleration sensors is introduced, and the ratio of the lost acceleration sensors is used as a factor to judge the accident level, so that the avoidance action of the seat adjusting device is changed according to the severity of the accident, and the misjudgment of the accident level caused by the damage of the acceleration sensor by the impact is avoided, and the avoidance action of the seat adjusting device can be further changed according to the severity of the accident in a more serious impact accident;

[0020] (2) By arranging the support assembly, the support rod is lifted to a position higher than the passenger's head when an accident occurs, and is in contact with the shell in advance, which can partially lift the shell, or act as a limiting mechanism to prevent the high-pressure gas piston in the lateral overturning assembly from further overturning the seat body, thereby reducing the probability of the passenger's head colliding with the upper shell;

[0021] (3) By setting the override button, the passenger can judge whether to perform the avoidance action in advance according to the situation, and reduce the consequences caused by the algorithm of the control module that cannot match the actual accident severity. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to facilitate the understanding of those skilled in the art, the present application will be further described below in conjunction with the drawings.

[0023] Figure 1 is a structural schematic diagram of the present application;

[0024] Figure 2 is a structural schematic diagram of the sliding assembly and the lateral overturning assembly of the present application;

[0025] Figure 3 is a structural schematic diagram of the sliding assembly and the lateral overturning assembly of the present application when being lifted;

[0026] Figure 4 is a sectional view of the lateral overturning assembly of the present application;

[0027] Figure 5 is a loop block diagram of the control module of the present application.

[0028] Main element symbol explanation:

[0029] In the figure: 1, seat body; 2, sliding assembly; 21, forward sliding rail group; 22, lateral sliding rail group; 23, driving sliding rail; 231, connecting rod; 232, sliding piece; 233, air cylinder; 234, piston; 235, limiting strip; 24, high-pressure gas tank; 3, lateral overturning assembly; 31, support table; 32, hinge; 33, telescopic rod; 4, jacking rod; 41, support rod; 5, overturning rod; 6, sensing module; 61, acceleration sensor; 7, control module; 71, override button. DETAILED DESCRIPTION

[0030] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined application purpose, the specific implementation, structure, features and effects according to the present application are described in detail as follows in conjunction with the drawings and preferred embodiments.

[0031] Please refer to Figures 1-5 A seat adjusting device in the process of vehicle collision, comprising a seat body 1, the seat body 1 is arranged in the vehicle body shell, in the embodiment, the seat body 1 is the co-pilot seat of the left-hand drive passenger car of conventional layout, at this time, the co-pilot seat is at the upper right corner of the vehicle interior space when observing the vehicle body shell interior space from the overhead perspective, at this time, the seat is closest to the front and right side shell, when the vehicle is transported, the passenger sits on the co-pilot seat.

[0032] When the vehicle is in transport, it is possible to have a rear-end collision with another vehicle or other accidents in front. Due to the high speed of the vehicle itself, when a front collision occurs, the vehicle body shell constituting the interior space of the vehicle is often extruded backward, and the front passengers will quickly rush forward and hit the extruded shell under the action of inertia. Under the combined action of the two, it is easy to cause the human body to collide with the shell and cause injury, and even the probability of passengers being extruded in the vehicle by the deformed shell after the collision, affecting rescue. Therefore, the seat adjusting device further comprises a sliding assembly 2, a sensing module 6 and a control module 7. The sliding assembly 2 comprises a forward sliding rail set 21, which comprises two parallel drive sliding rails 23. Each drive sliding rail 23 is provided with a corresponding driver. The two drive sliding rails 23 of the forward sliding rail set 21 are parallel to the forward direction of the vehicle body. The seat body 1 is slidably arranged on the two drive sliding rails 23 and slides along the drive sliding rail 23 under the drive of the drive assembly. The sensing module 6 is arranged on the outer surface of the four sides of the vehicle body, for monitoring acceleration data and uploading to the control module 7. The control module 7 is electrically connected with the driver. In this embodiment, since the seat is the co-pilot seat of the left-hand drive car, it is located in the front row. Therefore, when the vehicle collides in front, it needs to move backward to move away from the front shell. At this time, the initial position of the sliding member 232 on the two drive sliding rails 23 is located in the stroke close to the front of the vehicle. At the same time, the drive sliding rail 23 can be a lead screw assembly driven by a lead screw structure, or a sliding guide rail driven by a cylinder 233. The seat body 1 is connected with the sliding member 232 on the guide rail. The sliding member 232 and the seat body 1 slide to the other end of the drive sliding rail 23. When a front collision occurs, the external object extrudes the shell for a short time. The sensing module 6 located on the outer surface of the front of the vehicle body detects the acceleration change caused by extrusion. When the control module 7 receives the acceleration data change of the front sensing module 6, the two drivers of the forward sliding rail set 21 are started. The two drivers drive the sliding member 232 and the seat body 1 to slide to the other end of the drive sliding rail 23, so that the passengers sitting on it move backward to move away from the vehicle body shell on the side hit by the collision, reducing the probability of collision with the front shell and increasing the potential rescue space.

[0033] Preferably, the two driving slide rails 23 of the forward slide rail group 21 are sliding guide rails driven by the cylinder 233. Due to the fast speed of the vehicle itself, the collision and the shell deformation caused by the collision often occur in a very short time, so the driver of the driving slide rail 23 needs to start and complete the driving of the sliding part 232 in an instant, so that the seat body 1 is moved to the position. When the driving slide rail 23 adopts the scheme of motor driving, the motor needs to start in a very short time when the collision occurs and drive the sliding part 232 at the highest possible speed. At this time, the motor needs to pass a large current in a short time, which is easy to cause burning and other accidents, so that the safety function of the forward slide rail group 21 is lost. In order to avoid such situations, the driving slide rail 23 is a sliding guide rail driven by the cylinder 233. In the embodiment, the driving slide rail 23 includes a high-pressure gas tank 24, a cylinder 233, a piston 234 and a limiting strip 235. The high-pressure gas tank 24, the cylinder 233 and the piston 234 constitute a driver. The cylinder 233 is provided with an opening at both ends. One end of the piston 234 is slidably arranged in the cylinder 233, and the other end extends out of the opening of the cylinder 233 and is connected with the sliding part 232. The high-pressure gas tank 24 is in communication with the cylinder 233 through the other opening of the cylinder 233. The high-pressure gas tank 24 and the opening are connected through a solenoid valve. The control module 7 is electrically connected with the solenoid valve and controls the opening and closing of the solenoid valve. The limiting strip 235 is arranged in parallel with the sliding direction of the piston 234 in the cylinder 233. The cylinder 233 and the limiting strip 235 are parallel to the forward direction of the vehicle. One end of the limiting strip 235 is connected with the outer wall of the cylinder 233. The bottom surface of the sliding part 232 cooperates with the limiting strip 235 and slides on the limiting strip 235. Normally, the piston 234 is located in the cylinder 233 near the front end of the vehicle. When a frontal collision occurs, the control module 7 opens the solenoid valve after receiving the signal of the sensing module 6. The gas in the high-pressure gas tank 24 is released into the cylinder 233. The high-pressure gas expands in the cylinder 233 and pushes the piston 234 along the cylinder 233. The piston 234 pushes the sliding part 232 to slide away from the front end of the vehicle along the limiting strip 235. At the same time, the driving of the sliding part 232 drives the seat body 1 to move backward, which avoids the high failure rate of the motor driving in the instant start and further improves the safety of the passengers.

[0034] In addition to the risk of frontal rear impact, vehicles also have the probability of side impact. Compared with frontal impact, in side impact, the serious deformation of the automobile door sill can cause the lateral passenger cabin space to be squeezed. Due to the smaller collision area and lower side structure stiffness, side impact is more dangerous, which directly affects the safety of passengers. In order to reduce the risk in side impact, the sliding assembly 2 further includes a lateral sliding rail set 22. Similar to the forward sliding rail set 21, the lateral sliding rail set 22 includes two parallel driving sliding rails 23, each of which is provided with a corresponding driver. The two driving sliding rails 23 are arranged perpendicular to the vehicle forward direction. The two lateral sliding rail sets 22 are arranged above the forward sliding rail set 21, and one of the driving sliding rails 23 is connected with the two sliding members 232 of the forward sliding rail set 21. The two driving sliding rails 23 are connected through a connecting strip. The seat body 1 is arranged above the lateral sliding rail set 22 and is connected with the sliding members 232 of the two driving sliding rails 23. In this embodiment, since the seat is the co-pilot seat of a left-hand-drive car, it is located on the right side in the vehicle body. Therefore, when the vehicle collides on the right side, it needs to move to the left to move away from the right shell. At this time, the initial positions of the sliding members 232 on the two driving sliding rails 23 are located at one end near the right side of the vehicle in the stroke. When the side impact occurs, the control module 7 receives the acceleration data change of the side sensing module 6, and starts the two drivers of the lateral sliding rail set 22. The two drivers drive the sliding members 232 and the seat body 1 to slide on the driving sliding rails 23 to the other end of the stroke, so that the passengers sitting on it move to the left when colliding, reducing the probability of collision injury with the shell on the side of the impact, while increasing the potential rescue space and improving the safety of passengers in side impact.

[0035] Preferably, for similar reasons as the forward sliding rail set 21, the two driving sliding rails 23 of the lateral sliding rail set 22 are sliding guides in which the sliding members 232 are driven by the cylinders 233. Except that the arrangement direction is changed to be perpendicular to the vehicle forward direction, the rest of the structure is similar to the driving sliding rail 23 in the forward sliding rail set 21. When side impact occurs, the control module 7 opens the electromagnetic valve in the lateral sliding rail set 22 after receiving the signal of the sensing module 6. The gas in the high-pressure gas tank 24 is released into the cylinder 233 and expands to push the piston 234. The piston 234 pushes the sliding member 232 to slide along the limiting strip 235 away from the right end of the vehicle, completing the driving of the sliding member 232 to move the seat body 1 to the left.

[0036] In the side impact, sometimes the impact point is relatively close to the upper part of the shell, and due to the structure of the family car, the space for lateral displacement is shorter than that for front and rear displacement, so that in the event of a lateral impact, only the inward horizontal movement cannot move the passengers away from the side of the shell. In order to further move the passengers away from the side of the shell and reduce the risk in the event of a side impact, the seat adjusting device further comprises a lateral overturning assembly 3 arranged below the forward sliding rail assembly 21, and the two drive sliding rails 23 of the forward sliding rail assembly 21 are connected by a connecting strip. The lateral overturning assembly 3 comprises a hinge 32 and two telescopic rods 33. The hinge 32 is arranged at the vehicle chassis and is hinged with the inner drive sliding rail 23 of the forward sliding rail assembly 21. The two telescopic rods 33 are arranged in parallel outside the sliding assembly 2. The two telescopic rods 33 are each provided with a driver. In this embodiment, the lateral overturning assembly 3 comprises a hinge 32, two telescopic rods 33 and a support table 31. The two telescopic rods 33 are arranged in parallel and their projections in the forward direction of the vehicle coincide. The support table 31 is arranged on the vehicle chassis and has a long strip shape as a whole. The long side of the support table 31 is parallel to the forward direction of the vehicle. The height of the support table 31 is consistent with the vertical height of the telescopic rod 33 in the retracted state. The hinge 32 is arranged above the edge of the support table 31. Taking the front passenger seat as an example, the drive sliding rail 23 on the left side of the forward sliding rail assembly 21 is hinged with the hinge 32, and the drive sliding rails 23 on the right side are respectively hinged with one end of the two telescopic rods 33. The other end of the two telescopic rods 33 is hinged with the vehicle chassis. The telescopic rod 33 has a piston 234 structure. The inner space of the two piston 234 structures is respectively connected with a high-pressure gas tank 24 through an electromagnetic valve. The electromagnetic valve is electrically connected with and controlled by the control module 7. At the same time, in order to support the seat as a whole when the sliding assembly 2 overturns, the two drive sliding rails 23 of the forward sliding rail assembly 21 and the lateral sliding rail assembly 22 are connected by a connecting rod 231. When the acceleration data of the side impact sensing module 6 changes, the control module 7 opens the two electromagnetic valves of the lateral overturning assembly 3. The high-pressure gas expands in the piston 234 structure of the telescopic rod 33 and pushes the telescopic rod 33 to elongate. The sliding assembly 2 above the telescopic rod 33 rotates away from the right side of the shell hit by the hinge 32. The seat body 1 arranged above the sliding assembly 2, especially the passenger's torso above the seat body 1, moves away from the right side of the shell. By arranging the lateral overturning assembly 3, the passenger, especially the passenger's important torso, moves away from the side of the shell in the event of a side impact, further improving the safety of side impact.

[0037] When the above structure performs the risk avoidance action after the collision, due to the limited space in the vehicle and the fact that it usually carries other passengers, when the seat movement degree is too low, it will cause insufficient safety and cannot avoid the impact of the human body and the vehicle body, when the seat movement degree is too high, it is easy to invade the space of other passengers, causing the remaining passengers to collide with the seat, and secondary disasters occur, at this time, the degree of risk avoidance needs to be determined according to the severity of the collision, when the collision is not serious, it means that the shell deformation is not serious, at this time, there is no need for a large risk avoidance action, and the risk avoidance can be completed while considering not invading the space of other passengers, when the impact is more serious, it means that the shell deformation is more serious, at the same time, compared with the impact of the seat adjustment device on other people, the impact caused by a major traffic accident is much more serious, at this time, compared with invading the space of other passengers, it should be considered to make the passengers near the impact point away from the impact point, therefore, when the impact is more serious, a larger risk avoidance action is needed, in order to change the avoidance action of the seat adjustment device according to the severity of the accident, the sensing module 6 is a sensor array embedded in the four side surfaces, each sensor array is composed of a plurality of acceleration sensors 61, and the plurality of acceleration sensors 61 are respectively connected with the control module 7, the control module 7 numbers and groups the plurality of acceleration sensors 61, the acceleration sensors 61 in the same sensor array are in the same group, at the same time, the control module 7 has pre-input acceleration thresholds a and b, where a < b, and has pre-input standard electromagnetic valve opening time c, during driving, the plurality of accelerators upload the acceleration data detected in real time to the control module 7, when the vehicle collides, a certain part of the vehicle shell is depressed, the acceleration sensor 61 embedded in the depression part has a large acceleration due to the deformation of the shell within a short time, the control module 7 first determines the position of the vehicle body impact according to the group of the acceleration sensor 61 uploading the abnormal data, at the same time, when the data received by the control module 7 shows that more than 10% of the acceleration sensors 61 in the same sensor array upload acceleration data greater than a, it means that at least 10% of the components are slightly deformed, at this time, the control module 7 determines that a first-class accident occurs, when the data received by the control module 7 shows that more than 20% of the acceleration sensors 61 in the same sensor array upload acceleration data greater than b, it means that at least 20% of the components are deformed more seriously, at this time, the control module 7 determines that a second-class accident occurs, at the same time, due to the existence of inertia and resistance, after the electromagnetic valve is opened, the input amount of high-pressure gas is low, the pushing force on the piston 234 is small, when the input amount of high-pressure gas is large, the pushing force on the piston 234 is large, and the opening time of the adjusting electromagnetic valve determines the filling amount of high-pressure gas in the piston 234, after the collision, the control module 7 starts the corresponding part of the seat adjustment device in the seat near the impact position according to the impact position, for example, when the front of the vehicle collides, the electromagnetic valve in the forward slide rail group 21 of the co-driver seat body 1 is opened, when the side of the vehicle collides,The electromagnetic valve in the lateral flip assembly 3 and the lateral slide rail assembly 22 in the co-driver seat body 1 is opened, and the opening time of the electromagnetic valve is determined by the control module 7 according to the determination of the accident level. When the determination result is a first-class accident, the corresponding electromagnetic valve is opened for a corresponding time of 0.5c value. At this time, less high-pressure gas enters the corresponding piston 234 structure, and the stroke of the sliding piece 232 or the telescopic rod 33 is lower. When the determination result is a second-class accident, the corresponding electromagnetic valve is opened for a corresponding time of c value. At this time, more high-pressure gas enters the corresponding piston 234 structure, and the stroke of the sliding piece 232 or the telescopic rod 33 is larger. By pre-inputting the values of a, b and c in the control module 7, the acceleration sensors 61 of the several groups of sensing modules 6 are formed, and the control module 7 determines the accident level according to the proportion of the uploaded data exceeding the threshold value. The severity of the accident is determined by the accident level, and the avoidance action of the seat adjusting device is automatically changed according to the severity of the accident.

[0038] In the actual occurrence of more serious collision accidents, due to the huge impact force and serious shell deformation, there is a probability that the severely deformed part of the buried sensor will be damaged by the collision accident before uploading the data, and the acceleration sensor 61 located in the part with less impact or deformation can normally upload the acceleration data. At this time, there is a probability that the acceleration data uploaded by the originally 20% acceleration sensor 61 is greater than b. After the damage of this part of the sensor, only the acceleration sensor 61 in the part with less impact will upload the data less than b to the control module 7, so that the control module 7 makes a wrong judgment on the accident level. In order to avoid such problems, the control module 7 real-time statistics the ratio of the acceleration sensor 61 in the same group that loses connection with the control module 7 in the same group. When the loss ratio is greater than 10%, it represents that there may be a serious collision accident that causes part of the sensor to lose connection. At the same time, in order to avoid the damage of the remaining acceleration sensor 61 caused by the control module 7, the control module 7 misjudges that the vehicle starts the seat adjusting device when no collision accident occurs, causing the passenger to be unable to normally operate or ride the vehicle. When the control module 7 receives data showing that the loss ratio of the acceleration sensor 61 in the same sensor array is greater than 10% and more than 10% of the acceleration sensor 61 uploads the acceleration data greater than a, the control module 7 determines that a third level accident occurs. At this time, it represents that the impact occurs and the acceleration sensor 61 corresponding to the part with less impact uploads data greater than a, and the acceleration sensor 61 corresponding to the part with more serious impact loses connection, and the impact is more serious than the second level accident. After the control module 7 determines that the third level accident occurs, the control module 7 opens the corresponding electromagnetic valve indefinitely. Specifically, the control module 7 opens the corresponding electromagnetic valve for 50c value corresponding time. At this time, the most high-pressure gas enters the corresponding piston 234 structure, and the sliding member 232 or telescopic rod 33 on the slide rail 23 is driven to have the longest stroke. By introducing the statistics of the number of lost acceleration sensor 61 and according to the ratio of the lost acceleration sensor 61 as a factor to judge the accident level, the misjudgment of the accident level caused by the damage of the acceleration sensor 61 by the impact is avoided. At the same time, when a more serious collision accident occurs, the evasive action of the seat adjusting device can be further changed according to the severity.

[0039] In the process of moving the seat body 1 away from the side of the vehicle shell by the lateral overturning assembly 3, since the seat body 1 is essentially moved in a circle around the hinge 32, the seat body and the passenger thereon are lifted in height while moving away from the side of the shell, which causes the head of a part of the higher passenger to have a probability of colliding with the upper shell. In order to reduce the probability of such problems, the seat adjusting device further comprises a support assembly embedded in the seat body 1, and the control module 7 is electrically connected with the support assembly to instruct the support assembly to extend and support a safety space between the seat and the top of the vehicle shell. In the embodiment, the support assembly comprises a pair of support rods 41, and in order to improve the support effect, the support assembly further comprises a top rod 4 connected to the top of the two support rods 41. The frame structure formed by the two support rods 41 and the top rod 4 covers the headrest at the top of the seat body 1, and at the same time, the top rod 4 prevents the support rods 41 from being completely retracted into the seat body 1. The two support rods 41 are both electrically connected with the control module 7 and are telescopic rods 33 driven by electric cylinders. After the control module 7 determines that the vehicle body is subjected to a side impact according to the group to which the acceleration sensor 61 that transmits the abnormal data belongs, the control module 7 drives the support rods 41 to extend. At this time, the top rod 4 is lifted to a position higher than the head of the passenger under the action of the support rods 41, and contacts the shell in advance, which can partially lift the shell, or acts as a limiting mechanism to prevent the gas-driven telescopic rod 33 in the lateral overturning assembly 3 from further overturning the seat body 1. By arranging the support assembly, the probability of the head of the passenger colliding with the upper shell is reduced.

[0040] When the human body is squeezed by the deformed vehicle shell after an accident, when the human body adopts a lying posture, because every part of the human body has a support, the pressure on the human body at this time will be borne by the human body on average, and because the human body adopts a lying posture, the displacement space of the organs of the human body is smaller under external force, so that the injury to the passenger in the accident is lower. In order to change the body position of the passenger to a lying posture when an accident occurs, the seat adjusting device further comprises a backrest overturning assembly arranged in the seat body 1, which is used to overturn the backrest of the seat body 1. The control module 7 is electrically connected with the backrest overturning assembly and drives the backrest overturning assembly according to the sensor data. In the embodiment, the backrest overturning assembly comprises a locker at the backrest rotation shaft of the seat body 1 and a overturning rod 5. One end of the overturning rod 5 is connected with an electric motor fixed to the internal structure of the vehicle, and the electric motor drives the overturning rod 5 to rotate along the backrest rotation shaft of the seat body 1. The other end of the overturning rod 5 is connected with the backrest. The control module 7 is electrically connected with the electric motor and the locker and drives them to operate. When the control module 7 determines that a side impact accident occurs, the control module 7 unlocks the locker and drives the electric motor to rotate according to the accident level. In a first-class accident, the electric motor rotates by 30°, in a second-class accident, the electric motor rotates by 40°, and in a third-class accident, the electric motor rotates by 55°. By arranging the overturning assembly and electrically connecting it with the control module 7, the passenger is changed to a lying posture when a collision occurs, and the angle of lying is adjusted according to the accident level.

[0041] When an accident occurs, sometimes the algorithm for judging the severity of the accident according to the data of several sensors and the on-off situation of the control module 7 cannot match the actual severity of the accident, at which time the user needs to judge by himself, in order to enable the passenger to have a method of judging and issuing instructions, the seat adjusting device also includes an override button 71, the override button 71 is electrically connected with the control module 7, the override button 71 is used to start the lateral overturning assembly 3 and the sliding assembly 2, the control module 7 gives priority to the command of the override button 71, in the embodiment, the override button 71 is divided into two and arranged on the side of the seat body 1, after the two buttons are pressed, the control module 7 respectively executes the avoidance action corresponding to the three-level accident in the front-back direction and the left-right direction, when the impact is about to occur, the user can judge by himself whether to execute the avoidance action in advance according to the situation, when the button is pressed, the control module 7 directly executes the avoidance action and stops judging whether the seat on which the button is pressed needs to execute the action according to the signal of the sensing module 6.

[0042] The working principle and use process of the present application are as follows:

[0043] Taking the co-pilot seat of a left-hand drive car as an example, when a forward collision occurs, the control module 7 opens the electromagnetic valve of the forward sliding rail group 21 after receiving the signal of the sensor array located in front of the vehicle shell, the gas in the high-pressure gas tank 24 is released into the cylinder 233, the high-pressure gas expands in the cylinder 233 and pushes the piston 234 along the cylinder 233, the piston 234 pushes the sliding piece 232 to slide along the limiting strip 235 away from the end of the vehicle in front, completing the driving of the sliding assembly 2 to move the seat body 1 backward.

[0044] When a lateral collision occurs, the control module 7 opens the electromagnetic valve in the lateral sliding rail group 22 after receiving the signal of the sensing module 6, the gas in the high-pressure gas tank 24 is released into the cylinder 233 and expands to push the piston 234, the piston 234 pushes the sliding piece 232 to slide along the limiting strip 235 away from the end of the vehicle on the right, completing the driving of the sliding piece 232 to move the seat body 1 to the left, at the same time, the control module 7 opens the two electromagnetic valves of the lateral overturning assembly 3, the high-pressure gas expands in the piston 234 structure of the telescopic rod 33 and pushes the telescopic rod 33 to elongate, driving the sliding assembly 2 above the telescopic rod 33 to rotate away from the right side of the shell along the hinge 32, the seat body 1 arranged above the sliding assembly 2, especially the passenger's torso above the seat body 1, is away from the right side of the shell, by arranging the lateral overturning assembly 3, the passenger, especially the passenger's relatively important torso part, is away from the side of the shell when a lateral collision occurs, at the same time of the action of the lateral overturning assembly, the control module 7 drives the support rod 41 of the support assembly to elongate, at this time, the top rod 4 is lifted to a position higher than the passenger's head under the action of the support rod 41, and is in contact with the shell in advance, which can partially lift the shell, or act as a limiting mechanism to prevent the gas in the lateral overturning assembly 3 from driving the telescopic rod 33 to further overturn the seat body 1.

[0045] When the collision occurs, if the acceleration data uploaded by more than or equal to 10% of the acceleration sensors 61 in the same group is greater than a, the control module 7 determines that a first-level accident occurs, and opens the corresponding electromagnetic valve for a time corresponding to a value of 0.5c; if the acceleration data uploaded by more than or equal to 20% of the acceleration sensors 61 in the same group is greater than b, the control module 7 determines that a second-level accident occurs, and opens the corresponding electromagnetic valve for a time corresponding to a value of c; if the disconnection rate of the acceleration sensors 61 in the same group is greater than 10% and the acceleration data uploaded by more than or equal to 10% of the acceleration sensors 61 is greater than a, the control module 7 determines that a third-level accident occurs, and the control module 7 opens the corresponding electromagnetic valve indefinitely.

[0046] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed above with the preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, change, and modification of the above embodiments, which does not depart from the technical solution of the present application, belongs to the scope of the technical solution of the present application.

Claims

1. A seat adjusting device in a vehicle collision process, characterized by: The application relates to a side overturning assembly, a sliding assembly, a seat body, a sensing module and a control module, the bottom surface of the side overturning assembly is connected with the bottom of a passenger space of a vehicle body, the top of the side overturning assembly is connected with the bottom of the sliding assembly, the seat body is arranged on the top of the sliding assembly and slides away from the side of the vehicle impacted by the vehicle under the driving of the sliding assembly, and the side overturning assembly is used for overturning the sliding assembly and the seat body away from the side of the vehicle impacted by the vehicle. The sensing module is arranged on the surface of the vehicle shell, the sensing module comprises four acceleration sensor arrays arranged on four surfaces of the side of the vehicle shell respectively, any acceleration sensor array is used for measuring the acceleration of the shell and uploading the acceleration to the control module in real time, the control module is electrically connected with the side overturning assembly, the sliding assembly and the sensing module respectively, acceleration thresholds a and b are pre-input in the control module, wherein a < b, and the standard operation time c of the side overturning assembly and the sliding assembly is also pre-input in the control module. Wherein, a < b; When the control module receives data greater than or equal to 10% of the sensors in the same sensor array and greater than a, the side overturning assembly or the sliding assembly is operated for 0.5c seconds. When the control module receives data greater than or equal to 20% of the sensors in the same sensor array and greater than b, the side overturning assembly or the sliding assembly is operated for c seconds. When the control module receives data greater than or equal to 10% of the sensors in the same sensor array and greater than a, and the data greater than or equal to 10% of the sensors are lost, the side overturning assembly or the sliding assembly is operated for 50c seconds. The sliding assembly comprises a side sliding rail group and a forward sliding rail group which are perpendicular to each other in the same plane, the forward sliding rail group and the side sliding rail group each comprise two parallel driving sliding rails and two drivers arranged corresponding to the two driving sliding rails, the forward sliding rail group is arranged parallel to the forward direction of the vehicle, the seat body is connected to the top of the forward sliding rail group and the side sliding rail group, and the bottom of the forward sliding rail group is connected to the top of the side overturning assembly.

2. The seat adjusting device during a vehicle collision according to claim 1, wherein: The side overturning assembly comprises a hinge and two telescopic rods, the hinge is arranged at the vehicle chassis and is hinged to the inner driving sliding rail of the forward sliding rail group, the two telescopic rods are each hinged to the vehicle chassis at one end and hinged to the outer driving sliding rail of the forward sliding rail group at the other end, and the two telescopic rods are each provided with a driver.

3. The seat adjusting apparatus during a vehicle collision according to claim 1, characterized by: The driver is a high-pressure gas tank, and the high-pressure gas tank drives the driving sliding rail to slide or the telescopic rod to extend.

4. The seat adjusting apparatus during a vehicle collision according to claim 1, characterized by: The application further comprises a supporting assembly embedded in the seat body, the control module is electrically connected with the supporting assembly to instruct the supporting assembly to extend and support the safety space between the seat and the top of the vehicle shell.

5. The seat adjusting apparatus during a vehicle collision according to claim 1, characterized by: The application further comprises a backrest overturning assembly arranged in the seat body, the backrest overturning assembly is used for overturning the backrest of the seat body, the control module is electrically connected with the backrest overturning assembly and drives the backrest overturning assembly according to the sensing module data.

6. The seat adjusting apparatus during a vehicle collision according to claim 1, characterized by: The application further comprises an override button electrically connected with the control module, the override button is used for starting the side overturning assembly and the sliding assembly, and the control module preferentially executes the command of the override button.

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