Automobile safety seat control system and working method thereof

Abstract

The application discloses a kind of automobile safety seat control system and working method, system includes speed sensor, is arranged in the collision sensor of each orientation of car, collision controller, airbag controller and automobile seat adjusting device;Speed sensor is used to detect the speed signal of car;Collision sensor is used to detect the barrier signal of car;Collision controller is used to determine whether collision is about to occur, if yes, then within the scope of collision protection time, seat adjustment instruction is issued to the automobile seat adjusting device;Airbag controller is used to trigger airbag to pop out;Automobile seat adjusting device is used to adjust automobile safety seat to preset position.The application can ensure that the system of the application can actively move away from the collision area of the driver and passenger when the car is in a severe collision, further improve the safety of the driver and passenger, and can effectively protect the driver and passenger in a high-intensity collision accident.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of automobile, and particularly relates to an automobile safety seat control system and a working method thereof. BACKGROUND

[0002] With the development of technology, automobiles bring people convenient transportation, but frequent driving accidents also bring people huge life and property losses. In order to improve the driving safety performance of automobiles, automobile seat safety control systems emerge as the times require.

[0003] In the prior art, in addition to optimizing the control system of the automobile itself to improve the safety performance, the safety belt, the safety airbag and the safety air curtain can also play a certain protective role for the driver and the passenger. Among them, the safety belt is mainly used to prevent secondary collision or more serious accidents caused by rushing out of the car when an emergency accident occurs; the safety airbag is mainly used to provide effective front collision protection for the driver and the passenger when a collision occurs, and needs to be used together with the safety belt; and the safety air curtain is mainly used to resist the impact from the side and the leg. However, although the above safety measures can be applied to the collision accidents of normal intensity, the protective effect in high-intensity collision accidents is very limited. SUMMARY

[0004] The purpose of the present application is to provide an automobile safety seat control system and a working method thereof, which at least solve the technical problem that the protective effect of the safety seat control system in the prior art in high-intensity collision accidents is very limited.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] The first aspect provides an automobile safety seat control system, comprising a speed sensor, a collision sensor arranged at each orientation of the automobile, a collision controller, a safety airbag controller and an automobile seat adjusting device;

[0007] The speed sensor is used to detect the speed signal of the automobile in real time, and send the speed signal to the collision controller;

[0008] The collision sensor is used to detect the obstacle signal of each orientation of the automobile in real time, and send the obstacle signal to the collision controller;

[0009] The collision controller is used to forward the speed signal and the obstacle signal of the automobile to the safety airbag controller, and judge whether a collision is about to occur according to the speed signal and the obstacle signal of the automobile. If yes, a collision occurrence warning is performed, and a seat adjusting instruction is issued to the automobile seat adjusting device within the collision protection time range;

[0010] The airbag controller is used to determine whether the airbag triggering condition is reached according to the speed signal and the obstacle signal of the automobile, and if yes, the airbag is triggered to pop out.

[0011] The automobile seat adjusting device is used to adjust the automobile safety seat to the preset position according to the seat adjusting instruction.

[0012] In a possible design, the system further includes a brake sensor and a brake controller, the brake sensor is used to detect a brake signal of the automobile and send the brake signal to the collision controller, the collision controller is used to determine whether the collision is about to occur according to the speed signal, the obstacle signal and the brake signal of the automobile, and if yes, a brake position locking signal is sent to the brake controller to perform brake position locking.

[0013] In a possible design, the collision sensor is arranged at least at the front, the side, the roof and / or the rear of the automobile, and the collision sensor at least includes a radar sensor and / or a pressure sensor.

[0014] The collision controller is used to calculate the relative distance and the relative speed between the automobile and the obstacle according to the radar ranging signal and the speed signal of the automobile, and calculate whether the automobile exceeds the safety distance according to the relative distance and the relative speed, and if yes, the pre-warning before the collision occurs is performed.

[0015] In a possible design, when the seat adjusting instruction is sent to the automobile seat adjusting device within the collision protection time range, the collision controller is specifically used for:

[0016] The first seat adjusting instruction is sent to the automobile seat adjusting device at the preset time point before the collision occurs, so that the automobile seat adjusting device moves the automobile safety seat rearward and / or reclines the automobile safety seat to the first preset position according to the first seat adjusting instruction;

[0017] When the collision trigger signal in front of the automobile is detected by the collision controller, the second seat adjusting instruction is sent to the automobile seat adjusting device, so that the automobile seat adjusting device moves the automobile safety seat to the second preset position according to the second seat adjusting instruction, and the second preset position is the farthest rearward moving position of the seat.

[0018] When the collision trigger signal at the side of the automobile is detected by the collision controller, the third seat adjusting instruction is sent to the automobile seat adjusting device, so that the automobile seat adjusting device moves the automobile safety seat to the third preset position according to the third seat adjusting instruction, and the third preset position should ensure that the body side of the driver and / or the passenger is located behind the B pillar of the automobile.

[0019] When the collision controller detects a collision trigger signal of the automobile roof, a fourth seat adjustment instruction is issued to the automobile seat adjustment device, so that the automobile seat adjustment device reclines the automobile safety seat backrest by a preset angle according to the fourth seat adjustment instruction.

[0020] When the collision controller detects a collision trigger signal of the rear of the automobile, a fifth seat adjustment instruction is issued to the automobile seat adjustment device, so that the automobile seat adjustment device moves the automobile safety seat forward to a fifth preset position according to the fifth seat adjustment instruction.

[0021] In a possible design, the system further comprises a seat pressure sensor configured to detect a pressure signal of the automobile seat and send the pressure signal to the collision controller, so that the collision controller determines whether a person is seated on the seat according to the pressure signal, and if so, issues a seat adjustment instruction to the automobile seat adjustment device when detecting a collision trigger signal.

[0022] In a possible design, the system further comprises a seat position sensor configured to detect a position signal of the automobile safety seat, so that the collision controller issues a seat adjustment instruction to the automobile seat adjustment device according to the position signal when detecting a collision trigger signal.

[0023] In a possible design, the automobile seat adjustment device comprises a seat position adjustment slide rail, and the automobile safety seat is arranged on the seat position adjustment slide rail. One side of the automobile safety seat is provided with a seat drive device, and the seat drive device is connected to the collision controller. The seat drive device comprises a detonator or a high-pressure gas generating device.

[0024] In a possible design, the system further comprises a seat safety control switch connected to the collision controller, configured to receive a seat adjustment trigger signal and send the seat adjustment trigger signal to the collision controller, so that the collision controller issues a seat adjustment instruction to the automobile seat adjustment device according to the seat adjustment trigger signal.

[0025] The second aspect provides a working method of the automobile safety seat control system according to any one of the possible designs in the first aspect, comprising:

[0026] The obstacle signal of each side of the automobile is detected by the collision sensor, the speed signal of the automobile is detected by the speed sensor, and the collision controller determines whether a collision is about to occur according to the obstacle signal and the speed signal. If so, a collision occurrence warning is performed, and a seat adjustment instruction is issued to the automobile seat adjustment device within a collision protection time range;

[0027] The airbag controller judges whether the airbag triggering condition is reached according to the obstacle signal and the speed signal of the automobile, and if yes, triggers the airbag to pop out;

[0028] The automobile seat adjusting device adjusts the automobile safety seat to the preset position according to the seat adjusting instruction.

[0029] In a possible design, when the collision controller detects the collision triggering signal in front or on the side of the automobile, before the seat adjusting instruction is sent to the automobile seat adjusting device, the method further comprises:

[0030] The seat pressure sensor detects the pressure signal of the automobile seat, so that the collision controller judges whether the seat is occupied according to the pressure signal.

[0031] Beneficial effects:

[0032] The present application makes full use of the limited space in the automobile, detects the obstacles through the collision sensors installed in each direction of the vehicle, and detects the speed signal of the automobile through the speed sensor, thereby giving early warning of the automobile collision event, and timely controlling the safety seat to move when the collision occurs, so as to ensure that the system of the present application can actively move the driver and passenger away from the collision area when the automobile is subjected to severe collision, further improve the safety of the driver and passenger, reduce the injury or death of the driver and passenger due to collision when the traffic accident occurs, and effectively protect the driver and passenger in high-intensity collision accidents. Meanwhile, the present application is combined with the airbag control subsystem of the automobile, can improve the injury avoidance ability of the driver and passenger by using the structure and space of the vehicle in a serious collision accident, and further reduce the possibility of personal injury to the minimum. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 The control block diagram of the automobile safety seat control system in the embodiment of the present application;

[0034] Figure 2 The flow chart of the automobile safety seat control method in the embodiment of the present application;

[0035] Figure 3 The flow chart of the front collision control method in the embodiment of the present application;

[0036] Figure 4 The flow chart of the side collision control method in the embodiment of the present application;

[0037] Figure 5 The flow chart of the roof collision control method in the embodiment of the present application;

[0038] Figure 6 The flow chart of the rear collision control method in the embodiment of the present application;

[0039] Figure 7 Method flowchart after the touch signal triggering in the embodiment of the application. DETAILED DESCRIPTION

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the application will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the drawings only constitutes some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings. It should be noted that the description of these embodiments is used to help understand the application, but does not constitute a limitation on the application.

[0041] Embodiment one

[0042] It should be noted that the automobile safety seat control system in the embodiment of the application is mainly applied to various types of automobiles, such as cars, etc. Of course, it can be understood that the automobile safety seat control system in the embodiment of the application can also be applied to the field of electric vehicles, such as new energy electric vehicles, etc., which is not limited here. By being applied to the scene related to the safety of the driver's seat of the automobile, the seat position and the backrest angle can be actively controlled and adjusted to ensure the safety of the driver and the passenger in the event of an emergency.

[0043] As shown in Figure 1 The first aspect of the application provides an automobile safety seat control system, which comprises a speed sensor, a collision sensor arranged at each orientation of the automobile, a collision controller, a safety airbag controller and an automobile seat adjusting device.

[0044] The speed sensor is used to detect the speed signal of the automobile in real time and send the speed signal to the collision controller.

[0045] The collision sensor is used to detect the obstacle signal of each orientation of the automobile in real time and send the obstacle signal to the collision controller.

[0046] The collision controller is used to forward the speed signal and the obstacle signal of the automobile to the safety airbag controller, and judge whether a collision is about to occur according to the speed signal and the obstacle signal of the automobile. If so, a pre-warning before the collision occurs is performed, and a seat adjusting instruction is issued to the automobile seat adjusting device within the collision protection time range.

[0047] The airbag controller is used to determine whether the airbag triggering condition is reached according to the speed signal and the obstacle signal of the automobile, and if yes, the airbag is triggered to pop out, wherein the airbag includes but is not limited to the driver airbag, the driver side airbag, the co-driver airbag, the co-driver side airbag, the rear passenger airbag and the rear side airbag.

[0048] The automobile seat adjusting device is used to adjust the automobile safety seat to a preset position according to the seat adjusting instruction.

[0049] It should be noted that the collision controller is used as an intermediate processor connected with the airbag controller and the collision sensor and the airbag starting control, the collision controller is used to receive the signals of the collision sensors, and simultaneously, the sensor signals received from the collision positions are forwarded to the airbag controller for processing, when the airbag controller reaches the pop-out condition of the corresponding airbag, preferably, the triggering condition of the airbag includes but is not limited to that the speed of the automobile is higher than a threshold value, for example, 60 km / h, the corresponding airbag starting instruction is issued, the collision sensor starts the corresponding seat movement or backrest tilting control immediately after receiving the instruction, and then the pop-out starting signal of the corresponding airbag is issued.

[0050] Based on the above disclosure, the embodiments of the present application make full use of the limited driving and riding space in the automobile, the obstacles are detected by the collision sensors installed in each direction of the vehicle, and the speed signal of the automobile is detected by the speed sensor, so that the automobile collision event is early warned, and the safety seat is controlled to move in time when the collision occurs, so that the system of the present application can actively move the driver and the passenger away from the collision area when the automobile is subjected to a severe collision, the safety of the driver and the passenger is further improved, the driver and the passenger are less likely to be injured or killed due to the collision when the traffic accident occurs, and the driver and the passenger can be effectively protected in a high-intensity collision accident; meanwhile, the present application is combined with the airbag control subsystem of the automobile, the injury avoidance ability of the driver and the passenger is improved by using the structure and space of the vehicle in a serious collision accident, and the possibility of personal injury is further minimized.

[0051] In a specific embodiment, the system further comprises a brake sensor and a brake controller, the brake sensor is used to detect the brake signal of the automobile, and the brake signal is sent to the collision controller to determine whether the collision is about to occur according to the speed signal, the obstacle signal and the brake signal of the automobile, if yes, the brake position locking signal is sent to the brake controller to lock the brake position.

[0052] Specifically, the brake sensor can read whether the driver steps on the brake when the collision is about to occur or occurs, if so, the brake signal is detected, when the collision controller detects that the collision occurs and needs to push the safety seat to move backward, the collision controller automatically moves the driver's seat backward after locking the driver's brake action and locking the brake position, so as to ensure that the driver's brake control is still effective even if the distance is not enough due to the seat retreat when stepping on the brake, and the automatic brake controller is released only after the brake sensor detects the next brake action.

[0053] In a specific embodiment, the collision sensor is arranged at least at the front, side, ceiling and / or rear of the vehicle, and the collision sensor at least includes a radar sensor and / or a pressure sensor.

[0054] The collision controller is configured to calculate the relative distance and relative speed between the vehicle and the obstacle according to the radar ranging signal and the vehicle speed signal, and calculate whether the vehicle exceeds the safe distance according to the relative distance and the relative speed, and if so, a pre-warning before the collision occurs is performed.

[0055] For example, the collision sensor in the embodiment includes at least two collision sensors arranged at the front of the vehicle, at least four collision sensors arranged at the two sides of the vehicle, at least two collision sensors arranged at the ceiling of the vehicle, and at least two collision sensors arranged at the rear of the vehicle. Of course, it can be understood that the above examples do not limit the arrangement of the collision controller, and the user can arrange the collision sensor according to the actual application vehicle or application scene, which is not limited here.

[0056] It should be noted that the collision sensor includes a radar sensor and / or a pressure sensor, wherein the radar sensor is configured to perform radar ranging on obstacles in each direction of the vehicle, and the pressure sensor is configured to detect a pressure signal of the obstacle acting on the vehicle body when the collision occurs. Then, the relative distance between the obstacle and the vehicle can be obtained by radar ranging, and the acting strength of the obstacle can be judged by detecting the pressure signal, and then the collision acceptance strength parameter of the vehicle structure design can be combined to calculate whether the seat of the driver and the passenger needs to be actively moved backward.

[0057] In a specific embodiment, when the seat adjustment instruction is issued to the vehicle seat adjustment device within the collision protection time range, the collision controller is specifically configured to:

[0058] A first seat adjustment instruction is sent to the automobile seat adjustment device at a preset time point before the collision occurs, so that the automobile seat adjustment device moves the automobile safety seat rearward and / or reclines the seat to a first preset position according to the first seat adjustment instruction;

[0059] It should be noted that if the collision is detected to come from the front end or the roof of the vehicle at the preset time point before the collision occurs, for example, 5s, the first preset position is the current seat position recorded by the seat sensor, and the reclining angle is to ensure that the head and shoulder position of the driver is behind the automobile B-pillar, so as to avoid the situation that the driver cannot view the road conditions in front due to the lowering of the backrest; if the collision is detected to come from the side of the vehicle, the first preset position is the position of the automobile B-pillar or slightly behind the B-pillar, so as to avoid that the seat is too far away from the brake and throttle switch to affect the driving safety.

[0060] When the collision controller detects a collision trigger signal in front of the vehicle, a second seat adjustment instruction is sent to the automobile seat adjustment device, so that the automobile seat adjustment device moves the automobile safety seat rearward to a second preset position according to the second seat adjustment instruction, wherein the second preset position is the farthest rearward moving position of the seat;

[0061] Preferably, when the collision controller detects a collision trigger signal in front of the vehicle, the seat is moved rearward to the maximum distance to ensure the maximum safety space in front, that is, the seat is moved to the maximum distance, so as to ensure the maximum safety space in front, and the front airbag can be popped out to further reduce the injury.

[0062] When the collision controller detects a collision trigger signal on the side of the vehicle, a third seat adjustment instruction is sent to the automobile seat adjustment device, so that the automobile seat adjustment device moves the automobile safety seat rearward to a third preset position according to the third seat adjustment instruction, wherein the third preset position should ensure that the side of the body of the driver is located behind the automobile B-pillar;

[0063] It should be noted that by moving the automobile safety seat to the third preset position, the side of the body of the driver is hidden behind the B-pillar as much as possible, so that the B-pillar can block the injury caused by the side impact, and the side airbag can be popped out to further reduce the injury.

[0064] When the collision controller detects a collision trigger signal on the roof of the vehicle, a fourth seat adjustment instruction is sent to the automobile seat adjustment device, so that the automobile seat adjustment device reclines the backrest of the automobile safety seat by a preset angle according to the fourth seat adjustment instruction;

[0065] It should be noted that if the impact intensity reaches a certain intensity, the vehicle roof collision sensor may trigger a collision detection or a deformation signal, and the collision controller will issue a seat adjustment instruction to the seat adjusting device to automatically adjust the seat backrest to a preset angle to move away from the deformed roof position, thereby further ensuring the safety of the driver and passenger, and the front airbag can be ejected to further reduce the injury.

[0066] When the collision controller detects a collision trigger signal at the rear of the vehicle, a fifth seat adjustment instruction is issued to the vehicle seat adjusting device, so that the vehicle seat adjusting device moves the vehicle safety seat forward to a fifth preset position according to the fifth seat adjustment instruction.

[0067] Preferably, when the collision controller detects a collision trigger signal at the rear of the vehicle, if there is no passenger in the front seat and there is a passenger in the rear seat, the collision controller can control the front empty seat to move forward with the maximum distance and at the same time the seat backrest is inclined forward to increase the extrusion safety space of the rear passenger; if there is a passenger in the front seat, the front seat will be controlled to move forward according to the rear collision intensity, and at the same time the seat backrest is straightened to ensure the safety of the front and rear passengers.

[0068] In a specific embodiment, the system further comprises a seat pressure sensor for detecting a pressure signal of the vehicle seat and sending the pressure signal to the collision controller, so that the collision controller determines whether there is a person seated on the seat according to the pressure signal, and if so, issues a seat adjustment instruction to the vehicle seat adjusting device when detecting a collision trigger signal.

[0069] Preferably, the collision controller determines that the seat pressure sensor determines that there is a driver or passenger, and more preferably, the collision controller also receives a signal that the driver or passenger is fastened with a seat belt, so that the seat is controlled when a collision occurs. The seat without receiving the driver or passenger information will not be controlled (such as the seat pushing and the control of the airbag ejection as described above).

[0070] In a specific embodiment, the system further comprises a seat position sensor for detecting a position signal of the vehicle safety seat, so that the collision controller issues a seat adjustment instruction to the vehicle seat adjusting device according to the position signal when detecting a collision trigger signal.

[0071] In a specific embodiment, the automobile seat adjusting device comprises a seat position adjusting slide rail, and a safety seat is arranged on the seat position adjusting slide rail, and a seat driving device is arranged on one side of the safety seat, and the seat driving device is connected with the collision controller, wherein the seat driving device comprises a bursting device or a high-pressure gas generating device.

[0072] Specifically, the safety seat can slide forward and backward on the seat position adjusting slide rail, and a seat position sensor transmits a seat position signal into the collision controller, so as to control the automobile seat to move to a safe position when a collision occurs; preferably, a seat rear movement power device is used to quickly push the automobile seat to retreat at the moment when the collision occurs, and the device is generally a high-pressure gas generating device or a storage container type, etc., when receiving the seat adjusting instruction sent by the collision controller, the seat is quickly pushed to retreat to the designated safe position along the adjusting slide rail combined with the current position signal recorded by the seat position sensor.

[0073] Of course, it can be understood that the safety belt in the embodiment is mounted on the seat back of the automobile, or the safety belt on the B-pillar is wound to the back of the seat back through the pulley on the seat back, and a three-point fixing method of the safety belt is adopted to fix the driver and the passenger, so as to fix the driver and the passenger on the seat during the movement of the driver and the passenger following the seat, and ensure the safety of the personnel.

[0074] In a specific embodiment, when a collision occurs, the collision controller is specifically used for:

[0075] When it is detected that the distance exceeds the first safety distance and the speed is greater than the threshold value, a first alarm is performed by sending a first alarm signal to an audible and light alarm, wherein the audible and light alarm comprises a sound alarm and a signal lamp;

[0076] When it is detected that the distance exceeds the second safety distance and the speed is greater than the threshold value, a second alarm is performed by sending a second alarm signal to the audible and light alarm, wherein the second alarm signal is used to prompt the safety seat to be adjusted;

[0077] When it is detected that the distance exceeds the third safety distance and the speed is greater than the threshold value, a third alarm is performed by sending a third alarm signal to the audible and light alarm, wherein the third alarm signal is used to prompt the safety seat to be adjusted.

[0078] In a specific embodiment, the system further comprises a seat safety control switch connected with the collision controller, used to receive a seat adjusting trigger signal and send the seat adjusting trigger signal to the collision controller, so that the collision controller issues a seat adjusting instruction to the automobile seat adjusting device according to the seat adjusting trigger signal.

[0079] It should be noted that the collision controller of the embodiment serves as an intermediate processor of the collision sensor and the airbag controller, and the intermediate control process is as follows:

[0080] (1) If the vehicle is in a normal power-on process, the collision controller can read the signals sent by each sensor in real time, including seat pressure sensor signals, speed sensor signals, seat belt signals, seat position signals, and collision sensor signals, and detect them to determine the distance between the front obstacle and the vehicle, and further determine whether to start the seat adjustment action in combination with the vehicle speed and brake signal triggering. When it is determined that the front obstacle will collide violently under extreme braking conditions, and the radar sensor is less than a certain distance from the obstacle (for example, 2 meters from the obstacle and the vehicle speed is still greater than 90K / h), and the collision sensor also detects that the brake signal is started, the vehicle acceleration is calculated, and the collision acceptance strength parameter of the vehicle structure design is combined to determine whether the seat of the driver or passenger needs to be controlled to move backward. When the calculation result is severe (i.e., the vehicle may be severely damaged after a collision, affecting the driving space inside the vehicle), the collision controller locks the brake position, controls the seat to retreat to the rear end of the track, and simultaneously connects the signals between the airbag and the airbag controller to ensure that the airbag can be opened by the controller. Further, when a collision occurs, it is detected whether the collision sensor in each direction is triggered. If it is triggered, the front and rear or reclining control of the safety seat will be further adjusted (for example, when the roof deformation sensor is triggered, the seat will be controlled to recline backward, and when the side collision sensor is triggered, the body area of the passenger on the seat will be moved to the rear of the B-pillar).

[0081] (2) If the vehicle is in a low-speed or stationary state, when other objects collide violently with the vehicle body of the driver or passenger, the collision sensor (non-radar signal) is triggered, indicating that the vehicle body shell has been damaged. The collision controller will immediately control the seat to move, and the control method is the same as (1), which will not be described here.

[0082] (3) When the collision comes from the front side, the collision controller calculates the side collision speed and the collision area according to the side collision signal (radar feedback signal), determines the distance and acceleration of the collision sensor, and activates the driver or passenger collision control signal when the speed and collision area reach a certain value. The position sensor is started immediately after detecting the brake signal and the side collision sensor (inside the door or on the pillar).

[0083] (4) If the driver or passenger predicts in advance that the collision is unavoidable, the seat can be forced to move backward and operated by directly pressing the emergency control switch. Further pressing can further activate the seat reclining operation.

[0084] For example, Figures 2 to 7As shown, the second aspect of the embodiments of the present application provides a working method of the automobile safety seat control system as described in any one of the possible designs of the first aspect, including but not limited to the steps S1-S3:

[0085] Step S1. Detect the obstacle signal of each side of the automobile through the collision sensor, detect the speed signal of the automobile through the speed sensor, and determine whether the collision is about to occur according to the obstacle signal and the speed signal through the collision controller, if yes, then carry out the pre-warning before the collision occurs, and issue the seat adjustment instruction to the automobile seat adjusting device within the collision protection time range;

[0086] Step S2. Determine whether the airbag triggering condition is reached according to the obstacle signal and the speed signal of the automobile through the airbag controller, if yes, then trigger the airbag to pop up;

[0087] Step S3. Adjust the automobile safety seat to the preset position according to the seat adjustment instruction through the automobile seat adjusting device.

[0088] In a specific embodiment, when the collision controller detects the collision triggering signal in front of or on the side of the automobile, before issuing the seat adjustment instruction to the automobile seat adjusting device, the method further comprises:

[0089] Detect the pressure signal of the automobile seat through the seat pressure sensor, so that the collision controller determines whether there is a person seated on the seat according to the pressure signal.

[0090] As an application example of the embodiments of the present application, as Figures 3 to 7As shown, since any vehicle has a certain safety speed redundancy design, i.e. it can stop by braking when the speed is below a certain value, therefore, the trigger condition of the airbag in the embodiment of the application is set to be triggered when the vehicle speed reaches a certain condition, for example, when the vehicle speed is below a certain value, such as 60 km / h, the airbag of the car seat is in a locked state and does not work normally, and when the vehicle speed is higher than 60 km / h, the airbag will be triggered, wherein it should be noted that the vehicle speed here includes the absolute speed of the car or the relative speed of the car and the obstacle, i.e. in addition to setting the condition that the speed of the car itself meets the condition, the relative speed is calculated by reading the signal reflected by the external obstacle through the radar of the collision sensor, and when the relative speed is above 60 km / h, the airbag will also be unlocked and work normally. When the car is in a powered state (the car ECU works normally), the collision sensor continuously reads the data values of each sensor, and the distance and relative speed between the radar sensor and the obstacle are determined by the signals fed back by the radar sensor at regular intervals. When the radar detects that the distance to the obstacle is less than 10 meters and the relative speed is less than 60 km / h, the airbag controller and the safety seat control module will be in a locked state, at which time the safety redundancy design of the car itself is relied on for protection, such as sudden stop or collision energy absorption. When the speed or relative speed exceeds 60 km / h, the collision controller is unlocked and enters the working state, and the airbag control enters the normal working state. When the distance to the obstacle is less than 10 meters, the collision sensor sends an audible and light alarm instruction signal to remind the driver and passenger to pay attention to the operation, and when the distance is reduced to within 5 meters, the collision sensor will activate the rear seat to enter the standby state, and the audible and light alarm reminds the driver and passenger that the seat will be moved back. At the same time, the collision sensor reads the current position of the driver and passenger seat, judges the signals of the front and rear seat pressure sensors, and if the rear seat detects a passenger and the rear passenger fastens the seat belt, the seat can only be inclined to 135° or so during the rearward movement. When the distance is further reduced to within 2 meters, the seat rear movement instruction is started, and the states of each collision sensor and the speed state are monitored. When any collision sensor is triggered and the vehicle speed sensor reads a value greater than 0, if the brake sensor is not pressed enough, the collision controller automatically locks the brake to the fully pressed state (ABS may be activated), until the driver releases the brake pedal and presses it again, then the collision controller unlocks the brake lock, and the airbag controller decides whether to pop up the airbag according to the collision situation. The roof radar and roof collision sensor are used to detect whether an obstacle may collide with the windshield to the roof area above the engine compartment of the car, and when the roof radar detects that the distance to the obstacle is less than 2 meters, the driver and passenger seat is activated to be inclined backward. When the roof collision sensor is triggered by external force, the maximum angle of the front seat backrest is forced to be reclined (except for the seat without passengers detected by the seat personnel detection sensor).

[0091] Of course, it can be understood that the above application examples in the embodiment are only used for illustration, in actual application process, the faster the speed is, the greater the radar detection alarm distance threshold is, and the greater the distance of the safety seat triggering action is. The rear movement and the rear leaning of the safety seat controller adopt the blasting device or the high-pressure gas pushing mode to realize the fast movement, the seat position and the angle are monitored in real time in the movement process, when the specified position or the angle is reached, the pushing power is cut off and the seat position is locked. When the driver or the passenger finds the emergency and needs to actively start the safety seat rear movement operation at any time, only needs to press the seat safety control switch, the collision controller will default that the strong collision will occur in front, controls the seat pressed the switch to move back fast and automatically, leans back the seat to the back (detecting whether there is a passenger on the corresponding back seat in the leaning back process, and performing the related rear leaning angle control operation).

[0092] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the scope of protection of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A method for operating a car safety seat control system, characterized in that, This includes speed sensors, collision sensors located at various points on the vehicle, a collision controller, an airbag controller, and a vehicle seat adjustment device. The speed sensor is used to detect the vehicle's speed signal in real time and send the speed signal to the collision controller; The collision sensor is used to detect obstacle signals from all directions of the vehicle in real time and send the obstacle signals to the collision controller. The collision sensor is located at least at the front, side, roof and / or rear of the vehicle, and the collision sensor includes at least a radar sensor; The collision controller is used to calculate the relative distance and relative speed between the vehicle and the obstacle based on the radar ranging signal and the vehicle speed signal, and to calculate whether the vehicle exceeds the safe distance based on the relative distance and relative speed. If so, it will issue a warning before the collision occurs. The collision controller is used to forward the vehicle's speed signal and obstacle signal to the airbag controller, and to determine whether a collision is about to occur based on the vehicle's speed signal and obstacle signal. If so, it issues a pre-collision warning and issues a seat adjustment command to the vehicle seat adjustment device within the collision protection time range. The collision protection time range includes a preset time point before the collision to the time of the collision. When issuing a seat adjustment command to the vehicle seat adjustment device within the collision protection time range, the collision controller is specifically used for: When the collision controller detects a collision trigger signal in front of the vehicle, it sends a second seat adjustment command to the vehicle seat adjustment device, so that the vehicle seat adjustment device moves the vehicle safety seat to a second preset position according to the second seat adjustment command, wherein the second preset position is the farthest rearward position of the seat; When the collision controller detects a collision trigger signal from the side of the vehicle, it sends a third seat adjustment command to the vehicle seat adjustment device, so that the vehicle seat adjustment device moves the vehicle safety seat to a third preset position according to the third seat adjustment command. The third preset position should ensure that the side of the occupant's body is behind the B-pillar of the vehicle. When the collision controller detects a collision trigger signal from the car roof, it sends a fourth seat adjustment command to the car seat adjustment device, so that the car seat adjustment device can tilt the back of the car safety seat back to a preset angle according to the fourth seat adjustment command. When the collision controller detects a collision trigger signal behind the vehicle, it sends a fifth seat adjustment command to the vehicle seat adjustment device, so that the vehicle seat adjustment device moves the vehicle safety seat forward to a fifth preset position according to the fifth seat adjustment command. The airbag controller is used to determine whether the airbag triggering conditions are met based on the vehicle's speed signal and obstacle signal. If so, the airbag is deployed. The car seat adjustment device is used to adjust the car safety seat to a preset position according to the seat adjustment command; The system also includes a brake sensor and a brake controller. The brake sensor is used to detect the vehicle's braking signal and send the braking signal to the collision controller. The collision controller determines whether a collision is about to occur based on the vehicle's speed signal, obstacle signal, and braking signal. If so, it sends a brake position lock signal to the brake controller to lock the brake position. The brake sensor can read whether the driver has pressed the brake pedal when a collision is about to occur. If so, a brake signal is detected. When the collision controller detects that a collision has occurred and the safety seat needs to be moved backward, the collision controller will lock the driver's action of pressing the brake pedal and lock the brake position before automatically moving the driver's seat backward. This ensures that the driver's brake control remains effective even if the braking distance is insufficient due to the seat moving backward. The automatic brake controller will not be released until the brake sensor detects the next braking action. When providing pre-collision warning, the collision controller is specifically configured to: issue a first alarm by sending a first alarm signal to an audible and visual alarm device when the detected distance exceeds a first safe distance and the speed exceeds a threshold, wherein the audible and visual alarm device includes a sound alarm and a signal light; issue a second alarm by sending a second alarm signal to the audible and visual alarm device when the detected distance exceeds a second safe distance and the speed exceeds a threshold, wherein the second alarm signal is used to indicate that the child safety seat is about to be adjusted; and issue a third alarm by sending a third alarm signal to the audible and visual alarm device when the detected distance exceeds a third safe distance and the speed exceeds a threshold, wherein the third alarm signal is used to indicate that the child safety seat is being adjusted. The collision sensor detects obstacle signals from all sides of the vehicle, the speed sensor detects the vehicle's speed signal, and the collision controller determines whether a collision is about to occur based on the obstacle signal and speed signal. If so, a pre-collision warning is issued, and a seat adjustment command is sent to the vehicle seat adjustment device within the collision protection time range. The collision protection time range includes a preset time point before the collision to the time of the collision. The airbag controller determines whether the airbag deployment conditions are met based on the vehicle's obstacle and speed signals. If so, the airbag is deployed. Adjust the car safety seat to the preset position using the car seat adjustment device according to the seat adjustment instructions.

2. The method of operating the automotive safety seat control system according to claim 1, characterized in that, When the collision controller detects a collision trigger signal from the front or side of the vehicle, before issuing a seat adjustment command to the vehicle seat adjustment device, the method further includes: The pressure signal of the car seat is detected by the seat pressure sensor so that the collision controller can determine whether there is a person sitting in the seat.

3. The method of operating the automotive safety seat control system according to claim 1, characterized in that, The system also includes a seat position sensor, which is used to detect the position signal of the car safety seat so that the collision controller can issue a seat adjustment command to the car seat adjustment device based on the position signal when a collision trigger signal is detected.

4. The method of operating the automotive safety seat control system according to claim 1 or 3, characterized in that, The car seat adjustment device includes a seat position adjustment slide rail, on which a car safety seat is mounted. A seat drive device is located on one side of the car safety seat and is connected to the collision controller. The seat drive device includes a blaster or a high-pressure gas generator.

5. The method of operating the automotive safety seat control system according to claim 1, characterized in that, The system also includes a seat safety control switch, which is connected to the collision controller and is used to receive a seat adjustment trigger signal and send the seat adjustment trigger signal to the collision controller so that the collision controller can issue a seat adjustment command to the vehicle seat adjustment device according to the seat adjustment trigger signal.

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