A device for preventing automobile tire burst and instability and a control method thereof

Abstract

The present invention discloses a device for preventing a vehicle from losing stability due to a flat tire and its control method. A gunpowder launching device is installed on each of the left and right sides at the rear end of the vehicle roof. During the driving process of the vehicle, the tire pressures of the four tires are detected. When the tire pressure of any one or more of the tires is decreasing, the vehicle speed is detected. If the vehicle speed does not reach the threshold value, the vehicle body inclination angle α and the vehicle body rotation angle β are not detected, and the gunpowder launching device is not activated. When the vehicle speed reaches the threshold value, the vehicle body inclination angle α is detected. If the value of α does not reach the threshold value, the vehicle body rotation angle β is not detected, and the gunpowder launching device is not activated. If the value of α reaches the threshold value, the vehicle body rotation angle β is detected again. If the value of β does not reach the threshold value, the gunpowder launching device is not activated. If the value of β reaches the threshold value, the gunpowder launching device on the side opposite to the vehicle head turning is activated. The present invention uses the reaction force generated by the explosion of gunpowder to reduce the vehicle speed, reduce the probability of rollover after a flat tire of the vehicle, ensure driving safety, and further ensure the life safety of passengers.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle safety, and particularly to a device for preventing a vehicle from becoming unstable due to a flat tire and a control method thereof. Background Art

[0002] The service life of vehicle tires is long and the service environment is harsh, resulting in reduced tire life and performance. When driving at high speed on the road surface, if a flat tire occurs, the vehicle body is likely to roll over, leading to vehicle damage and casualties.

[0003] In the prior art, after a flat tire occurs, one way to prevent the vehicle from becoming unstable is to arrange airbags on the wheel hub. When the tire bursts, the sensor sends a signal and the airbag detonates to support the tire, thereby ensuring the stability of the vehicle body and preventing rollover. However, the airbag in this method is heavy, has a great impact on the dynamic balance of the wheel, and the cost of replacing the airbag after use is high. Another way is to sense through a sensor when a flat tire occurs, then provide a normal support force through a gas thruster, and then use a telescopic wheel to support to ensure the stability of the vehicle body during a flat tire and prevent rollover. However, this method has a complex structure, occupies vehicle space, and requires replacement of chemical fuel after use, resulting in high costs. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for preventing a vehicle from becoming unstable after a flat tire and a control method of the device.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] A device for preventing a vehicle from becoming unstable due to a flat tire, the device for preventing a vehicle from becoming unstable due to a flat tire includes a plurality of gunpowder launching devices, and the gunpowder launching devices are located on the roof of the vehicle; after the vehicle becomes unstable due to a flat tire, the gunpowder in the gunpowder launching devices explodes, generating a downward force on the vehicle from the roof to reduce the vehicle speed and at the same time restore the vehicle body to a normal state.

[0007] Furthermore, the plurality of gunpowder launching devices include a first gunpowder launching device and a second gunpowder launching device; the first gunpowder launching device and the second gunpowder launching device are respectively placed in two launching bins; the two launching bins are respectively located on the left and right sides at the rear end of the roof; the first gunpowder launching device and the second gunpowder launching device have the same structure; each gunpowder launching device includes a plurality of gunpowder launching units, and each gunpowder launching unit includes a corresponding gunpowder igniter.

[0008] Furthermore, the launch chamber includes an openable cover which is connected to the launch chamber body by two hinges; on the bottom surface inside the launch chamber, a first base, a second base, and a third base are fixed; the first gunpowder unit and the first gunpowder igniter, as well as the second gunpowder unit and the second gunpowder igniter, are fixed on the first base; the third gunpowder unit and the third gunpowder igniter, as well as the fourth gunpowder unit and the fourth gunpowder igniter, are fixed on the second base; the third base is fixed on the bottom surface inside the launch chamber and is located between the first base and the second base.

[0009] Furthermore, one end of the support rod is connected to the third base by a pin, and the connection between one end of the support rod and the third base is a hinged connection, allowing the support rod to rotate on the third base; the other end of the support rod is connected to the ejection block; the ejection block is located inside the gunpowder launch tube; the gunpowder launch tube is welded to the inner side of the cover of the launch chamber facing the inside of the launch chamber, and the support rod and the ejection block are connected by a pin.

[0010] Furthermore, the gunpowder launch tube is cylindrical, and the track is also cylindrical. The track is located at one end of the gunpowder launch tube, and the gunpowder launch tube and the track are integrally formed in an integrated design; the diameter of the gunpowder launch tube is the same as that of the track, and the track is also welded to the inner side of the cover facing the inside of the launch chamber; a long strip-shaped opening is provided below the track; one end of the opening is close to one end of the gunpowder launch tube; one end of the stop plate is hinged to the cover by a pin, and the other end of the stop plate is located between the long strip-shaped openings.

[0011] Furthermore, an elastic member is connected to the cover. One end of the elastic member is fixed to the cover, and the other end is connected to the side of the stop plate facing away from the gunpowder launch tube. The connection point of the elastic member and the stop plate is close to the end of the stop plate.

[0012] Furthermore, an ejection block is provided inside the gunpowder launch tube. The ejection block is cylindrical and is located inside the gunpowder launch tube and arranged along the axial direction of the gunpowder launch tube; the ejection block has a clearance fit with the gunpowder launch tube, and the ejection block can slide axially along the inner surface of the gunpowder launch tube inside the gunpowder launch tube. The ejection block also serves to seal the gunpowder launch tube.

[0013] Furthermore, when the cover of the launch chamber is closed, the ejection block is at the bottom end of the gunpowder launch tube. One end of the ejection block is closely adjacent to the fifth gunpowder unit, and the other end of the ejection block is connected to the support rod by a pin; when the cover of the launch chamber is closed, the support rod is in a flat state inside the launch chamber.

[0014] Furthermore, when the gunpowder in the gunpowder launching tube explodes, the ejection block is pushed by the force generated by the explosion of the gunpowder and moves along the inner wall of the gunpowder launching tube towards the direction of the track. When the ejection block moves, it drives one end of the support rod connected to it to move at the same time. The other end of the support rod rotates on the base. When the ejection block encounters the stop plate during the moving process, the stop plate is stressed and the elastic component is compressed. One end of the stop plate located between the openings moves towards the direction of the cover to leave a passage. The ejection block continues to move towards the other end of the track. When the ejection block reaches the front-end structure of the track, the ejection block stops moving, and the support rod is in a vertical state, supporting the cover of the launch bin to keep the cover in an open state. And at this time, the elastic component is in a compressed state. One end of the stop plate abuts against one end of the ejection block to prevent the ejection block from sliding down, thereby preventing the support rod from falling down.

[0015] A control method for the device for preventing a vehicle from bursting a tire and becoming unstable, characterized in that:

[0016] During the driving process of the vehicle, first detect the tire pressures of the four tires. When the pressure values of any one or more of the tires are decreasing and are abnormal, then detect the vehicle speed. If the vehicle speed does not reach the threshold value V0, then do not detect the vehicle body inclination angle α and the vehicle body rotation angle β, and the gunpowder launching device does not start; when the vehicle speed reaches the threshold value V0, then detect the vehicle body inclination angle α. If the α value does not reach the threshold, then do not detect the vehicle body rotation angle β, and the gunpowder launching device does not start; if the α value reaches the threshold, then detect the vehicle body rotation angle β. If the β value does not reach the threshold, then the gunpowder launching device does not start; the vehicle body left deviation β is defined as a positive angle, and the vehicle body right deviation β is defined as a negative angle; if the β value reaches the threshold, when β is a positive angle, that is, the vehicle head deflects to the left, start the second gunpowder launching device installed on the right side of the vehicle roof; when β is a negative angle, that is, the vehicle head deflects to the right, start the first gunpowder launching device installed on the left side of the vehicle roof to reduce the vehicle speed, and at the same time restore the vehicle body to the normal state to ensure that the vehicle does not roll over.

[0017] The beneficial effects of the present invention are:

[0018] 1. When a tire of the vehicle bursts during high-speed driving, the present invention generates an upward force during the explosion of the gunpowder, and generates a downward reaction force on the vehicle body. The said reaction force acts on the vehicle roof and is a force from the vehicle roof downwards; the said reaction force is used to prevent the vehicle from rolling over due to the inertial force when the tire bursts.

[0019] 2. The present invention uses the reaction force generated by the explosion of the gunpowder to reduce the vehicle speed, and at the same time restores the vehicle body to the normal state to ensure that the vehicle does not roll over. The present invention can reduce the probability of the vehicle rolling over after a tire burst, ensure driving safety, avoid vehicle damage, and further ensure the life safety of passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the present invention.

[0021] Figure 2 This is a schematic diagram of the present invention.

[0022] Figure 3 This is a schematic diagram of the present invention.

[0023] Figure 4 This is a schematic diagram of the closed launch chamber.

[0024] Figure 5 This is a schematic diagram of the open state of the cover of the launch chamber.

[0025] Figure 6 This is a schematic diagram of the present invention.

[0026] Figure 7 This is a schematic diagram of the support rod and the track of the present invention.

[0027] Figure 8 This is a schematic diagram of the present invention.

[0028] In the figure: First gunpowder launch device 1; Second gunpowder launch device 2; Launch chamber 3; Cover 3-1; First base 3-2; Second base 3-3; Third base 3-4; Hinge 3-5; First gunpowder unit 4; Second gunpowder unit 5; Third gunpowder unit 6; Fourth gunpowder unit 7; First gunpowder igniter 8; Second gunpowder igniter 9; Third gunpowder igniter 10; Fourth gunpowder igniter 11; Support rod 12; Ejection block 13; Gunpowder launch tube 14; Fifth gunpowder unit 14-1; Fifth gunpowder igniter 14-2; Stop plate 15; Elastic member 16; Track 17; Opening 17-1. Detailed implementation manners

[0029] In order to make the purpose, technical solutions and advantages of the invention clearer, the present invention will be further described below with reference to the accompanying drawings.

[0030] As Figure 1 shown, in the present invention, a gunpowder launch device is respectively arranged at two corner positions at the rear of the vehicle roof, namely the first gunpowder launch device 1 and the second gunpowder launch device 2. In order to ensure the air resistance and aesthetics, the first gunpowder launch device 1 and the second gunpowder launch device 2 are respectively placed in two launch chambers 3 made of sheet metal materials. The launch chamber 3 is a cube; the two launch chambers 3 are respectively welded to the left and right sides at the rear end of the vehicle roof, or connected to the left and right sides at the rear end of the vehicle roof by bolts; the cover 3-1 of the launch chamber 3 can be opened, and each gunpowder launch device includes four gunpowder launch units.

[0031] In the present invention, when a tire of a vehicle bursts, the on-vehicle computer will receive corresponding sensor signals. After calculation, the signals are transmitted to a gunpowder launching device. The gunpowder launching device operates to cause the gunpowder to explode. Through the upward force generated when the gunpowder explodes, a downward reaction force is generated on the vehicle body. The said reaction force acts on the roof of the vehicle and is a force from the roof downward. The said reaction force is used to prevent the vehicle from tipping over due to inertial force when the tire bursts.

[0032] The gunpowder launching device is located in a closed launching chamber 3. If the gunpowder explodes in a closed space, the forces generated in all directions by the explosion will cancel each other out, and it is impossible to prevent the vehicle from tipping over through the said reaction force. Therefore, before the on-vehicle computer decides that the gunpowder launching device operates, it is necessary to open the cover 3-1 of the launching chamber 3. The cover 3-1 is connected to the body of the launching chamber 3 through two hinges 3-5.

[0033] Since the first gunpowder launching device 1 and the second gunpowder launching device 2 have the same structure and the same working principle, in the embodiment, the structure of the first gunpowder launching device 1 is taken as an example for illustration.

[0034] As Figure 2 shown, the first gunpowder launching device 1 includes four gunpowder launching units, which are the first gunpowder unit 4, the second gunpowder unit 5, the third gunpowder unit 6, and the fourth gunpowder unit 7 from left to right. Gunpowder is placed in the said four gunpowder units. The first gunpowder unit 4, the second gunpowder unit 5, the third gunpowder unit 6, and the fourth gunpowder unit 7 respectively correspond to an igniter, which are the first gunpowder igniter 8, the second gunpowder igniter 9, the third gunpowder igniter 10, and the fourth gunpowder igniter 11.

[0035] The first gunpowder unit 4 and the first gunpowder igniter 8 are integrated; the second gunpowder unit 5 and the second gunpowder igniter 9 are integrated; the third gunpowder unit 6 and the third gunpowder igniter 10 are integrated; the fourth gunpowder unit 7 and the fourth gunpowder igniter 11 are integrated.

[0036] As Figure 3 shown, on the bottom surface inside the launching chamber 3, a first base 3-2, a second base 3-3, and a third base 3-4 are fixed. The first base 3-2, the second base 3-3, and the third base 3-4 can be welded on the bottom surface of the launching chamber 3 or can be fixed on the bottom surface of the launching chamber 3 through bolts. The first gunpowder unit 4 and the first gunpowder igniter 8 and the second gunpowder unit 5 and the second gunpowder igniter 9 are fixed on the first base 3-2. The third gunpowder unit 6 and the third gunpowder igniter 10 and the fourth gunpowder unit 7 and the fourth gunpowder igniter 11 are fixed on the second base 3-3.

[0037] As Figure 3 and Figure 6As shown in the figure, the third base 3-4 is fixed on the bottom surface inside the launch chamber 3 and is located between the first base 3-2 and the second base 3-3; one end of the support rod 12 is connected to the third base 3-4 through a pin. One end of the support rod 12 and the third base 3-4 are hinged together, and the support rod 12 can rotate on the third base 3-4; the other end of the support rod 12 is connected to the ejection block 13; the ejection block 13 is located inside the gunpowder launch tube 14.

[0038] The gunpowder launch tube 14 is welded to the inner side of the cover 3-1 of the launch chamber 3 facing the inside of the launch chamber 3, and the support rod 12 and the ejection block 13 are connected by a pin.

[0039] At the bottom end of the gunpowder launch tube 14, there is a fifth gunpowder unit 14-1, and the fifth gunpowder unit 14-1 is connected to a fifth gunpowder igniter 14-2. The fifth gunpowder unit 14-1 and the fifth gunpowder igniter 14-2 are integrally formed; the fifth gunpowder unit 14-1 contains gunpowder, the fifth gunpowder unit 14-1 is located inside the gunpowder launch tube 14, and the fifth gunpowder igniter 14-2 is located outside the gunpowder launch tube 14.

[0040] The gunpowder launch tube 14 is a cylinder. As Figure 7 shown in the figure, the track 17 is also a cylinder. The track 17 is located at one end of the gunpowder launch tube 14. The gunpowder launch tube 14 and the track 17 are integrally formed as an integrated design; the diameter of the gunpowder launch tube 14 is the same as the diameter of the track 17, and the track 17 is also welded to the inner side of the cover 3-1 facing the inside of the launch chamber 3.

[0041] There is a long strip-shaped opening 17-1 under the track 17; one end of the opening 17-1 is closely attached to one end of the gunpowder launch tube 14.

[0042] One end of the stop plate 15 is hinged to the cover 3-1 through a pin. The connection end of the stop plate 15 and the cover 3-1 can rotate along the pin; the connection point of the stop plate 15 and the cover 3-1 is located on the inner side of the cover 3-1 facing the inside of the launch chamber 3, and the other end of the stop plate 15 is located between the long strip-shaped openings 17-1; one end of the elastic member 16 is fixed on the cover 3-1, and the other end is connected to the side of the stop plate 15 facing away from the gunpowder launch tube 14. The connection point of the elastic member 16 and the stop plate 15 is close to the end of the stop plate 15; the elastic member 16 is a spring.

[0043] The ejection block 13 is cylindrical. The ejection block 13 is located inside the gunpowder launch tube 14 and is arranged along the axial direction of the gunpowder launch tube 14; the ejection block 13 has a clearance fit with the gunpowder launch tube 14. The ejection block 13 can slide axially along the inner surface of the gunpowder launch tube 14 inside the gunpowder launch tube 14, and the ejection block 13 also serves to seal the gunpowder launch tube 14.

[0044] When the cover 3-1 of the launch bin 3 is closed, the ejection block 13 is at the bottom of the gunpowder launch tube. One end of the ejection block 13 is closely adjacent to the fifth gunpowder unit 14-1, and the other end of the ejection block 13 is connected to the support rod 12 through a pin. When the cover 3-1 of the launch bin 3 is closed, the support rod 12 is in a horizontal state inside the launch bin 3.

[0045] When the fifth gunpowder igniter 14-2 receives a signal from the vehicle-mounted computer and ignites, the gunpowder in the fifth gunpowder unit 14-1 included in the gunpowder launch tube 14 explodes. The ejection block 13 is pushed by the force generated by the explosion of the gunpowder and moves along the inner wall of the gunpowder launch tube 14 in the direction of the track 17. Due to the small width of the opening 17-1 of the track 17, the width of the opening 17-1 is smaller than the diameter of the ejection block 13, and the ejection block 13 continues to move towards the other end of the track 17. When the ejection block 13 moves, it simultaneously drives one end of the support rod 12 connected to it to move, and the other end of the support rod 12 rotates on the base 3-4. When the ejection block 13 encounters the stop plate 15 during the movement, the stop plate 15 is stressed, and the elastic member 16 is compressed. One end of the stop plate 15 located between the openings 17-1 moves towards the cover 3-1 to create a passage, and the ejection block 13 continues to move towards the other end of the track 17. When the ejection block 13 reaches the front-end structure of the track 17, the ejection block 13 stops moving. At the same time, the support rod 12 reaches the working position, and the support rod 12 is in a vertical state at this time, supporting the cover 3-1 of the launch bin 3 to make the cover 3-1 in an open state. And at this time, the elastic member 16 is in a compressed state, and one end of the stop plate 15 abuts against one end of the ejection block 13 to prevent the ejection block 13 from sliding down, thereby preventing the support rod 12 from falling down.

[0046] When the tire pressure drops and there is a situation where a flat tire vehicle rolls over, in order to balance the vehicle body, the on-vehicle computer receives a signal and issues a program command. The fifth gunpowder igniter 14-2 receives the signal from the on-vehicle computer and ignites, opening the cover 3-1 of the launch chamber 3. After the cover 3-1 is opened, the on-vehicle computer program controls the first gunpowder igniter 8 to ignite, causing the gunpowder in the first gunpowder unit 4 to explode and generate a reaction force, which acts on the vehicle body to balance the vehicle body and reduce the vehicle speed at the same time. Correspondingly, if, according to the calculation of the on-vehicle computer and the working conditions, it is necessary to increase the reaction force, the first gunpowder igniter 8 and the second gunpowder igniter 9 can be ignited simultaneously, causing the gunpowder in the first gunpowder unit 4 and the second gunpowder unit 5 to explode simultaneously to generate a reaction force, which acts on the vehicle body to balance the vehicle body and reduce the vehicle speed at the same time; or the first gunpowder igniter 8, the second gunpowder igniter 9 and the third gunpowder igniter 10 can be ignited simultaneously, causing the gunpowder in the first gunpowder unit 4, the second gunpowder unit 5 and the third gunpowder unit 6 to explode simultaneously to generate a reaction force, which acts on the vehicle body to balance the vehicle body and reduce the vehicle speed at the same time; or the first gunpowder igniter 8, the second gunpowder igniter 9, the third gunpowder igniter 10 and the fourth gunpowder igniter 11 can be ignited simultaneously, causing the gunpowder in the first gunpowder unit 4, the second gunpowder unit 5, the third gunpowder unit 6 and the fourth gunpowder unit 7 to explode simultaneously to generate a reaction force, which acts on the vehicle body to balance the vehicle body and reduce the vehicle speed at the same time until the vehicle travels to a safe place.

[0047] The information received by the central processing unit of the on-vehicle computer includes: the tire pressure value P1 of the left front tire, the tire pressure value P2 of the right front tire, the tire pressure value P3 of the left rear tire, the tire pressure value P4 of the right rear tire; the vehicle speed V; the vehicle body inclination angle α; the vehicle body rotation angle β.

[0048] A vehicle speed sensor is provided on the vehicle, which can be used to detect the vehicle speed at each moment, and the detected vehicle speed is transmitted to the on-vehicle computer.

[0049] Four tire pressure sensors are provided on the vehicle to detect the tire pressure value of each tire at each moment, and the detected tire pressure value is transmitted to the on-vehicle computer.

[0050] If the vehicle speed is lower than the speed threshold V0, neither the first gunpowder launch device 1 nor the second gunpowder launch device 2 will detonate under any circumstances; if the vehicle speed is higher than the speed threshold V0, the gunpowder launch device needs to detonate according to the following situations; V0 needs to be obtained through experiments or accident probability statistics.

[0051] For each vehicle speed V, there corresponds a vehicle body inclination angle α and a vehicle body rotation angle β. During the vehicle's forward movement, the vehicle body inclination angle α and the vehicle body rotation angle β at each moment can be measured by an inclination sensor or a rotation angle sensor installed on the vehicle, and the vehicle body inclination angle α and the vehicle body rotation angle β measured by the inclination sensor or the rotation angle sensor are transmitted to the on-vehicle computer.

[0052] The threshold value α0 of the vehicle body inclination angle α and the threshold value β0 of the vehicle body rotation angle β need to be obtained through experiments and calculations based on the body structure of each vehicle model; generally, for the vehicle body inclination angle value and the vehicle body rotation angle value obtained through experiments and calculations based on the body structure of each vehicle model, 90% of the calculated vehicle body inclination angle value is taken as the threshold value α0 of the vehicle body inclination angle α, and at the same time, 90% of the calculated vehicle body rotation angle value is taken as the threshold value β0 of the vehicle body rotation angle β, so as to reserve a 10% safety margin.

[0053] Whether the gunpowder in the first gunpowder launching device 1 and the second gunpowder launching device 2 explodes is controlled by a program in the vehicle-mounted computer; the amount of gunpowder in the first gunpowder launching device 1 and the second gunpowder launching device 2 is obtained through multiple experiments and calculations. The amount of gunpowder can make the reaction force generated when the gunpowder explodes prevent the vehicle from rolling over and avoid endangering the safety of the passengers due to the explosion of the gunpowder.

[0054] As Figure 1 and Figure 8 shown, the first gunpowder launching device 1 is installed on the left side at the rear end of the vehicle roof, and the second gunpowder launching device 2 is installed on the right side at the rear end of the vehicle roof.

[0055] During the driving of the vehicle, first, the tire pressure sensors detect the tire pressure values of the four tires. The tire pressure values detected by the tire pressure sensors are transmitted to the vehicle-mounted computer. When the tire pressure value P1 of the left front tire is decreasing, the vehicle-mounted computer determines that P1 is abnormal. Then the vehicle-mounted computer judges the vehicle speed at this time. The vehicle speed data obtained by the vehicle speed sensor is transmitted to the vehicle-mounted computer. If the vehicle-mounted computer determines that the vehicle speed at this time has not reached the speed threshold V0, it is not necessary to detect the vehicle body inclination angle α and the vehicle body rotation angle β, and the gunpowder launching device on the vehicle roof is not activated either; when the vehicle-mounted computer determines that the vehicle speed at this time reaches the threshold V0, the vehicle-mounted computer then judges the vehicle body inclination angle α at this time. The vehicle body inclination angle α value obtained by the inclination sensor is transmitted to the vehicle-mounted computer. If the vehicle-mounted computer determines that the vehicle body inclination angle α value at this time has not reached the threshold value α0, it is not necessary to detect the vehicle body rotation angle β, and the gunpowder launching device on the vehicle roof is not activated either; if the vehicle-mounted computer determines that the vehicle body inclination angle α value at this time reaches the threshold value α0, the vehicle-mounted computer then judges the vehicle body rotation angle β at this time. The vehicle body rotation angle β value obtained by the rotation angle sensor is transmitted to the vehicle-mounted computer. If the vehicle-mounted computer determines that the vehicle body rotation angle β value at this time has not reached the threshold value β0, the gunpowder launching device on the vehicle roof is not activated either; if the vehicle-mounted computer determines that the vehicle body rotation angle β value at this time reaches the threshold value β0, the vehicle-mounted computer issues a program command to open the cover 3-1 of the launch chamber 3, and the gunpowder launching device diagonally opposite to the left front tire works, that is, the gunpowder in the second gunpowder launching device 2 explodes; each gunpowder launching device includes four gunpowder units. The number of exploded gunpowder units, that is, the amount of gunpowder, is calculated by the central processing unit of the vehicle-mounted computer. Through the reaction force generated by the explosion of the gunpowder, the vehicle speed is reduced, and at the same time, the vehicle body is restored to the normal state to ensure that the vehicle does not roll over.

[0056] Similarly, during the driving of the vehicle, first, the tire pressure sensors detect the tire pressure values of the four tires. The tire pressure values detected by the tire pressure sensors are transmitted to the in-vehicle computer. When the tire pressure value P2 of the right front tire is decreasing, the in-vehicle computer determines that P2 is abnormal. Then, the in-vehicle computer judges the vehicle speed at this time. The vehicle speed data obtained by the vehicle speed sensor is transmitted to the in-vehicle computer. If the in-vehicle computer determines that the vehicle speed at this time has not reached the speed threshold V0, there is no need to detect the vehicle body inclination angle α and the vehicle body rotation angle β, and the gunpowder launching device on the vehicle roof is not activated either. When the in-vehicle computer determines that the vehicle speed at this time has reached the threshold V0, the in-vehicle computer then judges the vehicle body inclination angle α at this time. The vehicle body inclination angle α value obtained by the inclination sensor is transmitted to the in-vehicle computer. If the in-vehicle computer determines that the vehicle body inclination angle α value at this time has not reached the threshold α0, there is no need to detect the vehicle body rotation angle β, and the gunpowder launching device on the vehicle roof is not activated either. If the in-vehicle computer determines that the vehicle body inclination angle α value at this time has reached the threshold α0, the in-vehicle computer then judges the vehicle body rotation angle β at this time. The vehicle body rotation angle β value obtained by the rotation angle sensor is transmitted to the in-vehicle computer. If the in-vehicle computer determines that the vehicle body rotation angle β value at this time has not reached the threshold β0, the gunpowder launching device on the vehicle roof is not activated either. If the in-vehicle computer determines that the vehicle body rotation angle β value at this time has reached the threshold β0, the in-vehicle computer issues a program command to open the cover 3-1 of the launch cabin 3, and the gunpowder launching device diagonally opposite to the right front tire works, that is, the gunpowder in the first gunpowder launching device 1 explodes. Each gunpowder launching device includes four gunpowder units. The number of exploded gunpowder units, that is, the amount of gunpowder, is calculated by the central processing unit of the in-vehicle computer. Through the reaction force generated by the explosion of the gunpowder, the vehicle speed is decreased, and at the same time, the vehicle body is restored to the normal state to ensure that the vehicle does not roll over.

[0057] Similarly, during the driving of the vehicle, first, the tire pressure sensors detect the tire pressure values of the four tires. The tire pressure values detected by the tire pressure sensors are transmitted to the in-vehicle computer. When the tire pressure value P1 of the left front tire and the tire pressure value P2 of the right front tire are both decreasing, the in-vehicle computer determines that P1 and P2 are abnormal. Then the in-vehicle computer judges the vehicle speed at this time. The vehicle speed data obtained by the vehicle speed sensor is transmitted to the in-vehicle computer. If the in-vehicle computer determines that the vehicle speed at this time has not reached the speed threshold V0, there is no need to detect the vehicle body inclination angle α and the vehicle body rotation angle β, and the gunpowder launching device on the roof is not activated either. When the in-vehicle computer determines that the vehicle speed at this time reaches the threshold V0, the in-vehicle computer then judges the vehicle body inclination angle α at this time. The vehicle body inclination angle α value obtained by the inclination sensor is transmitted to the in-vehicle computer. If the in-vehicle computer determines that the vehicle body inclination angle α value at this time has not reached the threshold α0, there is no need to detect the vehicle body rotation angle β, and the gunpowder launching device on the roof is not activated either. If the in-vehicle computer determines that the vehicle body inclination angle α value at this time reaches the threshold α0, the in-vehicle computer then judges the vehicle body rotation angle β at this time. The vehicle body rotation angle β value obtained by the rotation sensor is transmitted to the in-vehicle computer. If the in-vehicle computer determines that the vehicle body rotation angle β value at this time has not reached the threshold β0, the gunpowder launching device on the roof is not activated either. If the in-vehicle computer determines that the vehicle body rotation angle β value at this time reaches the threshold β0, the in-vehicle computer issues a program command to open the cover 3-1 of the launch capsule 3. At the same time, the in-vehicle computer judges the magnitudes of the P1 and P2 values, and activates the gunpowder launching device diagonally opposite to the tire with the smaller tire pressure value among the left front tire and the right front tire. The number of gunpowder units, i.e., the amount of gunpowder, for the explosion is calculated by the central processing unit of the in-vehicle computer. Through the reaction force generated by the gunpowder explosion, the vehicle speed is decreased, and at the same time, the vehicle body is restored to the normal state to ensure that the vehicle does not roll over.

[0058] Similarly, during the driving of the vehicle, first, the tire pressure sensors detect the tire pressure values of the four tires. The tire pressure values detected by the tire pressure sensors are transmitted to the in-vehicle computer. When the tire pressure value P3 of the left rear tire is decreasing, the in-vehicle computer determines that P3 is abnormal. Then the in-vehicle computer judges the vehicle speed at this time. The vehicle speed data obtained by the vehicle speed sensor is transmitted to the in-vehicle computer. If the in-vehicle computer determines that the vehicle speed at this time has not reached the speed threshold V0, there is no need to detect the body inclination angle α and the body rotation angle β, and the gunpowder launching device on the vehicle roof is not activated either. When the in-vehicle computer determines that the vehicle speed at this time has reached the threshold V0, the in-vehicle computer then judges the body inclination angle α at this time. The body inclination angle α value obtained by the inclination sensor is transmitted to the in-vehicle computer. If the in-vehicle computer determines that the body inclination angle α value at this time has not reached the threshold α0, there is no need to detect the body rotation angle β, and the gunpowder launching device on the vehicle roof is not activated either. If the in-vehicle computer determines that the body inclination angle α value at this time has reached the threshold α0, the in-vehicle computer then judges the body rotation angle β at this time. The body rotation angle β value obtained by the rotation angle sensor is transmitted to the in-vehicle computer. If the in-vehicle computer determines that the body rotation angle β value at this time has not reached the threshold β0, the gunpowder launching device on the vehicle roof is not activated either. If the in-vehicle computer determines that the body rotation angle β value at this time has reached the threshold β0, the in-vehicle computer issues a program command to open the cover 3-1 of the launch chamber 3, and the gunpowder launching device on the opposite side of the left rear tire is activated, that is, the gunpowder in the second gunpowder launching device 2 explodes. Each gunpowder launching device includes four gunpowder units. The in-vehicle computer central processing unit calculates the number of exploded gunpowder units, that is, the amount of gunpowder. Through the reaction force generated by the explosion of the gunpowder, the vehicle speed is decreased, and at the same time, the vehicle body is restored to the normal state to ensure that the vehicle does not roll over.

[0059] Similarly, during the driving of the vehicle, first, the tire pressure sensors detect the tire pressure values of the four tires, and the tire pressure values detected by the tire pressure sensors are transmitted to the in-vehicle computer. When the tire pressure value P4 of the right rear tire is decreasing, the in-vehicle computer determines that P4 is abnormal. Then, the in-vehicle computer judges the vehicle speed at this time, and the vehicle speed data obtained by the vehicle speed sensor is transmitted to the in-vehicle computer. If the in-vehicle computer determines that the vehicle speed at this time has not reached the speed threshold V0, there is no need to detect the vehicle body inclination angle α and the vehicle body rotation angle β, and the gunpowder launching device on the roof is not activated either. When the in-vehicle computer determines that the vehicle speed at this time has reached the threshold V0, the in-vehicle computer then judges the vehicle body inclination angle α at this time, and the vehicle body inclination angle α value obtained by the inclination sensor is transmitted to the in-vehicle computer. If the in-vehicle computer determines that the vehicle body inclination angle α value at this time has not reached the threshold α0, there is no need to detect the vehicle body rotation angle β, and the gunpowder launching device on the roof is not activated either. If the in-vehicle computer determines that the vehicle body inclination angle α value at this time has reached the threshold α0, the in-vehicle computer then judges the vehicle body rotation angle β at this time, and the vehicle body rotation angle β value obtained by the rotation sensor is transmitted to the in-vehicle computer. If the in-vehicle computer determines that the vehicle body rotation angle β value at this time has not reached the threshold β0, the gunpowder launching device on the roof is not activated either. If the in-vehicle computer determines that the vehicle body rotation angle β value at this time has reached the threshold β0, the in-vehicle computer issues a program command to open the cover 3-1 of the launch cabin 3, and the gunpowder launching device on the opposite side of the right rear tire is activated, that is, the gunpowder in the first gunpowder launching device 1 explodes. Each gunpowder launching device includes four gunpowder units. The in-vehicle computer central processing unit calculates the number of exploded gunpowder units, that is, the amount of gunpowder. Through the reaction force generated by the explosion of the gunpowder, the vehicle speed is decreased, and at the same time, the vehicle body is restored to the normal state to ensure that the vehicle does not roll over.

[0060] Similarly, during the driving of the vehicle, first, the tire pressure sensors detect the tire pressure values of the four tires. The tire pressure values detected by the tire pressure sensors are transmitted to the in-vehicle computer. When the tire pressure value P3 of the left rear tire and the tire pressure value P4 of the right rear tire are both decreasing, the in-vehicle computer determines that P3 and P4 are abnormal. The in-vehicle computer then determines the vehicle speed at this time. The vehicle speed data obtained by the vehicle speed sensor is transmitted to the in-vehicle computer. If the in-vehicle computer determines that the vehicle speed at this time has not reached the speed threshold V0, it is not necessary to detect the vehicle body inclination angle α and the vehicle body rotation angle β, and the gunpowder launching device on the roof is not activated either. When the in-vehicle computer determines that the vehicle speed at this time has reached the threshold V0, the in-vehicle computer then determines the vehicle body inclination angle α at this time. The vehicle body inclination angle α value obtained by the inclination sensor is transmitted to the in-vehicle computer. If the in-vehicle computer determines that the vehicle body inclination angle α value at this time has not reached the threshold α0, it is not necessary to detect the vehicle body rotation angle β, and the gunpowder launching device on the roof is not activated either. If the in-vehicle computer determines that the vehicle body inclination angle α value at this time has reached the threshold α0, the in-vehicle computer then determines the vehicle body rotation angle β at this time. The vehicle body rotation angle β value obtained by the rotation sensor is transmitted to the in-vehicle computer. If the in-vehicle computer determines that the vehicle body rotation angle β value at this time has not reached the threshold β0, the gunpowder launching device on the roof is not activated either. If the in-vehicle computer determines that the vehicle body rotation angle β value at this time has reached the threshold β0, the in-vehicle computer issues a program command to open the cover 3-1 of the launch cabin 3. At the same time, the in-vehicle computer determines the magnitudes of the P3 and P4 values, and activates the gunpowder launching device on the same side of the tire with the larger tire pressure value among the left rear tire and the right rear tire. The number of gunpowder units to be exploded, that is, the amount of gunpowder, is calculated by the central processing unit of the in-vehicle computer. Through the reaction force generated by the explosion of the gunpowder, the vehicle speed is decreased, and at the same time, the vehicle body is restored to the normal state to ensure that the vehicle does not roll over.

[0061] Similarly, during the driving of the vehicle, first, the tire pressures of the four tires are detected. When the tire pressure of any one or two or more tires is decreasing and is abnormal, the vehicle speed is detected again. If the vehicle speed has not reached the threshold V0, the vehicle body inclination angle α and the vehicle body rotation angle β are not detected anymore, and the gunpowder launching device is not activated. When the vehicle speed reaches the threshold V0, the vehicle body inclination angle α is detected again. If the α value has not reached the threshold, the vehicle body rotation angle β is not detected anymore, and the gunpowder launching device is not activated. If the α value reaches the threshold, the vehicle body rotation angle β is detected again. If the β value has not reached the threshold, the gunpowder launching device is not activated. As Figure 8 shown, when the vehicle body leans to the left, β is a positive angle, and when the vehicle body leans to the right, β is a negative angle. If the β value reaches the threshold, then when β is a positive angle, that is, the front of the vehicle leans to the left, the second gunpowder launching device 2 is activated, that is, the gunpowder launching device installed on the right side of the roof is activated. When β is a negative angle, that is, the front of the vehicle leans to the right, the first gunpowder launching device 1 is activated, that is, the gunpowder launching device installed on the left side of the roof is activated, so that the vehicle speed is decreased, and at the same time, the vehicle body is restored to the normal state to ensure that the vehicle does not roll over.

[0062] Finally, it should be noted that the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0063] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "left" and "right" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

Claims

1. A device for preventing a vehicle from losing stability due to a flat tire, characterized in that: The device for preventing a vehicle from losing stability due to a flat tire includes a plurality of gunpowder launching devices, and the gunpowder launching devices are located on the roof of the vehicle; after the vehicle loses stability due to a flat tire, the gunpowder in the gunpowder launching devices explodes, generating a downward force on the vehicle from the roof to reduce the vehicle speed and at the same time restore the vehicle body to a normal state; The plurality of gunpowder launching devices include a first gunpowder launching device (1) and a second gunpowder launching device (2); the first gunpowder launching device (1) and the second gunpowder launching device (2) are respectively placed in two launching bins (3); the two launching bins (3) are respectively located on the left and right sides at the rear end of the roof; the first gunpowder launching device (1) and the second gunpowder launching device (2) have the same structure; each gunpowder launching device includes a plurality of gunpowder launching units, and each gunpowder launching unit includes a corresponding gunpowder igniter; The launching bin (3) includes an openable cover (3-1), and the cover (3-1) is connected to the body of the launching bin (3) through two hinges (3-5); On the bottom surface inside the launching bin (3), a first base (3-2), a second base (3-3), and a third base (3-4) are fixed. The third base (3-4) is fixed on the bottom surface inside the launching bin (3) and is located between the first base (3-2) and the second base (3-3); One end of a support rod (12) is connected to the third base (3-4) through a pin. One end of the support rod (12) and the third base (3-4) are hinged, and the support rod (12) can rotate on the third base (3-4); the other end of the support rod (12) is connected to an ejection block (13); the ejection block (13) is located inside a gunpowder launching tube (14); the gunpowder launching tube (14) is welded to the inner side of the cover (3-1) of the launching bin (3) facing the inside of the launching bin (3). The support rod (12) and the ejection block (13) are connected by a pin.

2. The device for preventing a motor vehicle tire from bursting and losing stability according to claim 1, characterized in that: On the first base (3-2), a first gunpowder unit (4) and a first gunpowder igniter (8), and a second gunpowder unit (5) and a second gunpowder igniter (9) are fixed; on the second base (3-3), a third gunpowder unit (6) and a third gunpowder igniter (10), and a fourth gunpowder unit (7) and a fourth gunpowder igniter (11) are fixed.

3. The device for preventing a motor vehicle from tire blowout and instability as claimed in claim 1, wherein: The gunpowder launching tube (14) is a cylinder, and the track (17) is also a cylinder. The track (17) is located at one end of the gunpowder launching tube (14), and the gunpowder launching tube (14) and the track (17) are integrally formed; the diameter of the gunpowder launching tube (14) is the same as the diameter of the track (17), and the track (17) is also welded to the inner side of the cover (3-1) facing the inside of the launching bin (3); a long strip-shaped opening (17-1) is provided below the track (17); one end of the opening (17-1) is close to one end of the gunpowder launching tube (14); one end of a stop plate (15) is hinged to the cover (3-1) through a pin, and the other end of the stop plate (15) is located between the long strip-shaped openings (17-1).

4. The anti-tire-burst and anti-instability device for vehicle according to claim 3, wherein: An elastic member (16) is connected to the cover (3-1). One end of the elastic member (16) is fixed to the cover (3-1), and the other end is connected to the side of the stop plate (15) facing away from the gunpowder launching tube (14). The connection point of the elastic member (16) and the stop plate (15) is close to the end of the stop plate (15).

5. A device for preventing a motor vehicle tire from bursting and losing stability, characterized in that: When the cover (3-1) of the launch chamber (3) is closed, the ejection block (13) is at the bottom end of the gunpowder launching tube. One end of the ejection block (13) is closely attached to the fifth gunpowder unit (14-1), and the other end of the ejection block (13) is connected to the support rod (12) through a pin; when the cover (3-1) of the launch chamber (3) is closed, the support rod (12) is in a horizontal state inside the launch chamber (3).

6. The device for preventing a motor vehicle from tire blowout and instability according to claim 4, characterized in that: When the gunpowder in the gunpowder launching tube (14) explodes, the ejection block (13) is pushed by the force generated by the explosion of the gunpowder and moves along the inner wall of the gunpowder launching tube (14) towards the direction of the track (17). When the ejection block (13) moves, it simultaneously drives one end of the support rod (12) connected to it to move, and the other end of the support rod (12) rotates on the base (3-4); when the ejection block (13) encounters the stop plate (15) during the movement process, the stop plate (15) is stressed, the elastic member (16) is compressed, and the end of the stop plate (15) located between the openings (17-1) moves towards the cover (3-1) to leave a passage, and the ejection block (13) continues to move towards the other end of the track (17). When the ejection block (13) reaches the front-end structure of the track (17), the ejection block (13) stops moving, the support rod (12) is in a vertical state, and the cover (3-1) of the launch chamber (3) is supported to make the cover (3-1) in an open state. One end of the stop plate (15) abuts against one end of the ejection block (13) to prevent the ejection block (13) from sliding down, thereby preventing the support rod (12) from falling down.

7. A control method for the device for preventing automobile tire burst and instability according to claim 1, characterized in that: The control method includes: during the driving process of the vehicle, first detect the tire pressures of the four tires. When the tire pressure value of any one or more of the tires is decreasing and is abnormal, then detect the vehicle speed. If the vehicle speed does not reach the threshold value V0, then do not detect the vehicle body inclination angle α and the vehicle body rotation angle β, and the gunpowder launching device does not start; when the vehicle speed reaches the threshold value V0, then detect the vehicle body inclination angle α. If the α value does not reach the threshold, then do not detect the vehicle body rotation angle β, and the gunpowder launching device does not start; if the α value reaches the threshold, then detect the vehicle body rotation angle β. If the β value does not reach the threshold, then the gunpowder launching device does not start; the vehicle body left deviation β is defined as a positive angle, and the vehicle body right deviation β is defined as a negative angle; if the β value reaches the threshold, when β is a positive angle, that is, the vehicle head is deflected to the left, start the second gunpowder launching device (2) installed on the right side of the vehicle roof; when β is a negative angle, that is, the vehicle head is deflected to the right, start the first gunpowder launching device (1) installed on the left side of the vehicle roof to reduce the vehicle speed and at the same time restore the vehicle body to a normal state to ensure that the vehicle does not roll over.

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