Control methods, devices, storage media, and vehicles in the event of a tire blowout

Abstract

This invention discloses a control method, device, storage medium, and vehicle for a vehicle tire blowout. The method includes: acquiring vehicle operating status information, wherein the operating status information includes at least: vehicle speed, vehicle slope information, vehicle wheel height, and vehicle spring pressure; determining vehicle wheel load information based on the operating status information; determining the vehicle's center of gravity position based on the wheel load information in response to a tire blowout; and controlling the vehicle to rise to a target height in response to the center of gravity position being within a target center of gravity range, wherein the target height is used to adjust the center of gravity position to the target center of gravity range, and the target center of gravity range is a triangular area formed by the wheel on the non-blowout side of the vehicle. This invention solves the technical problem of difficulty in reducing further damage to the tire and rim of a blowout tire by controlling the shift of the vehicle's center of gravity.

Description

Technical Field

[0001] This invention relates to the field of vehicles, and more specifically, to a control method, apparatus, storage medium, and vehicle for a vehicle tire blowout. Background Technology

[0002] Currently, during vehicle operation, tire blowouts or other wheel malfunctions are common. To prevent further damage to the faulty tire and rim, the spare tire needs to be replaced promptly. When the vehicle reaches a repair shop, the faulty tire can be reused after simple repairs. However, equipping a vehicle with a spare tire requires installation space, which reduces the vehicle's passenger space. In addition, the spare tire has a certain weight, increasing the vehicle's load and fuel consumption. This leads to technical problems that make it difficult to reduce further damage to the tire and rim of a blown-out wheel by controlling the vehicle's center of gravity transfer.

[0003] There is currently no effective solution to the technical problem of reducing further damage to the tire and rim of a blown-out wheel by controlling the vehicle's center of gravity transfer. Summary of the Invention

[0004] This invention provides a control method, apparatus, storage medium, and vehicle for a vehicle tire blowout, to at least solve the technical problem of difficulty in reducing further damage to the tire and rim of a blowout wheel by controlling the vehicle's center of gravity transfer.

[0005] According to one aspect of the present invention, a control method for a vehicle in the event of a tire blowout is provided. The method may include: acquiring vehicle operating state information, wherein the operating state information includes at least: vehicle speed, vehicle slope information, vehicle wheel height, and vehicle spring pressure; determining vehicle wheel load information based on the operating state information; determining the vehicle's center of gravity position based on the wheel load information in response to a tire blowout; and controlling the vehicle to rise to a target height in response to the center of gravity position being within a target center of gravity range, wherein the target height is used to adjust the center of gravity position to the target center of gravity range, the target center of gravity range being a triangular region formed by the wheel on the non-blowout side of the vehicle.

[0006] Optionally, in addition to controlling the vehicle to rise to a target height in response to the center of gravity being within the target center of gravity range, the control method for a tire blowout also includes: increasing the load on the wheel opposite the blowout wheel in response to the center of gravity not being within the target center of gravity range; determining the center of gravity position based on the wheel load information corresponding to the load; and controlling the vehicle to rise to a target height in response to the center of gravity being within the target center of gravity range.

[0007] Optionally, in response to the center of gravity being within the target center of gravity range, controlling the vehicle to be raised to the target height includes: using the air springs of the wheels to raise the vehicle to the target height.

[0008] Optionally, the vehicle is raised to a target height using the air springs of the wheels, including: determining the difference between the height of the air spring on the side of the vehicle with the blown tire and the height of the air spring on the side of the vehicle opposite the blown tire; and raising the vehicle to the target height using the air springs in response to the difference being a difference threshold.

[0009] Optionally, after the vehicle is raised to the target height using the air springs of the wheels, the control method for a tire blowout also includes reducing the air pressure corresponding to the air spring on the side of the blown-out wheel to a pressure threshold.

[0010] Optionally, after controlling the vehicle to rise to the target height in response to the center of gravity being within the target center of gravity range, the control method for the vehicle in the event of a tire blowout further includes: acquiring wheel load information of the non-blowout side of the vehicle; maintaining the vehicle height at the target height in response to the wheel load information being total load information; sending a prompt message in response to the wheel load information not being total load information, increasing the air pressure corresponding to the air spring on the blowout wheel side to the original air pressure, and performing the step of determining the center of gravity position of the vehicle based on the wheel load information in response to the tire blowout, wherein the prompt message is used to indicate that the blowout wheel has contacted the ground.

[0011] According to one aspect of the present invention, a control device for an oil pump test bench is provided. The device may include: a first acquisition unit for acquiring vehicle operating status information, wherein the operating status information includes at least: vehicle speed, vehicle slope information, vehicle wheel height, and vehicle spring pressure; a first determination unit for determining vehicle wheel load information based on the operating status information; a first response unit for determining the vehicle's center of gravity position based on the wheel load information in response to a tire blowout; and a second response unit for controlling the vehicle to rise to a target height in response to the center of gravity position being within a target center of gravity range, wherein the target height is used to adjust the center of gravity position to the target center of gravity range, the target center of gravity range being a triangular area formed by the wheel on the non-blowout side of the vehicle.

[0012] According to another aspect of the present invention, a computer-readable storage medium is also provided. The computer-readable storage medium includes a stored program, wherein, when the program is executed, it controls the device where the computer-readable storage medium is located to perform the control method for a vehicle tire blowout according to the embodiments of the present invention.

[0013] According to another aspect of the present invention, a processor is also provided. The processor is used to run a program, wherein the program, when run by the processor, executes the vehicle tire blowout control method of the present invention.

[0014] According to another aspect of the present invention, a vehicle is also provided, which is used to execute the control method for a vehicle tire blowout according to the embodiments of the present invention.

[0015] In this embodiment of the invention, the vehicle's working status information is acquired. Based on this information, the vehicle's wheel load information can be determined, and the possibility of a tire blowout can be assessed. If a tire blows out, the vehicle's center of gravity position is determined based on the determined wheel load information. It is then determined whether the center of gravity position is within the target center of gravity range. If it is, the vehicle is raised to the target height, thereby adjusting the center of gravity position to the target range. This achieves the goal of raising the height of the blown-out wheel, thus solving the technical problem of reducing further damage to the tire and rim of a blown-out wheel by controlling the vehicle's center of gravity shift. This achieves the technical effect of reducing further damage to the tire and rim of a blown-out wheel by controlling the vehicle's center of gravity shift. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a flowchart of a control method for a vehicle tire blowout according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of a functional communication architecture for maintaining stable vehicle operation according to an embodiment of the present invention;

[0019] Figure 3 This is a flowchart of a vehicle driving control method when a tire blows out, according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of a control device for a vehicle tire blowout according to an embodiment of the present invention. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0022] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0023] Example 1

[0024] According to an embodiment of the present invention, a control method for a vehicle tire blowout is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0025] Figure 1 This is a flowchart of a control method for a vehicle tire blowout according to an embodiment of the present invention. The method may include the following steps:

[0026] Step S101: Obtain the vehicle's working status information.

[0027] In the technical solution provided by step S101 of the present invention, the above-mentioned working state information may include at least: vehicle speed, vehicle slope information, vehicle wheel height and vehicle spring pressure. The vehicle wheel height may be the height of the four wheels of the vehicle, and the vehicle spring pressure may be the pressure of the air springs on the four wheel sides of the vehicle. This is only an example and is not specifically limited.

[0028] Optionally, the vehicle speed sensor can be used to obtain vehicle speed information, the acceleration signal can be used to calculate the current slope information of the vehicle, the vehicle height sensor can be used to obtain vehicle wheel height information, and the deformation sensor can be used to obtain vehicle spring pressure.

[0029] Step S102: Determine the wheel load information of the vehicle based on the working status information.

[0030] In the technical solution provided by step S102 of the present invention, the wheel load information of the vehicle can be used to characterize the load borne by the four wheels of the vehicle.

[0031] Optionally, after obtaining the vehicle's operating status information, the vehicle's wheel load information can be determined based on the operating status information. For example, the load borne by the four wheels of the vehicle can be calculated based on the vehicle's speed information, the vehicle's slope information, the vehicle's wheel height, and the vehicle's spring pressure.

[0032] In step S103, in response to a tire blowout, the vehicle's center of gravity position is determined based on the wheel load information.

[0033] In the technical solution provided by step S103 of the present invention, the tire blowout may include: a tire blowout of any wheel in the vehicle, or other malfunctions of any wheel in the vehicle.

[0034] Optionally, after determining the vehicle's wheel load information based on the working status information, in response to a tire blowout, the vehicle's center of gravity position is determined based on the wheel load information. For example, the vehicle's wheel blowout situation is judged. If a tire of the vehicle blows out (or any wheel of the vehicle experiences another malfunction), the vehicle's center of gravity position is determined based on the determined wheel load information. If no tire of the vehicle blows out (or no wheel of the vehicle experiences another malfunction), then it is not necessary to determine the vehicle's center of gravity position based on the determined wheel load information.

[0035] Step S104: In response to the center of mass being within the target center of mass range, control the vehicle to be raised to the target height.

[0036] In the technical solution provided by step S104 of the present invention, the target height can be used to adjust the center of gravity position to the target center of gravity range, which can be the triangular area range formed by the wheel on the side of the vehicle without a blowout.

[0037] Optionally, in response to a tire blowout, after determining the vehicle's center of gravity position based on wheel load information, and in response to the center of gravity position being within the target center of gravity range, the vehicle is controlled to be raised to the target height. For example, it is determined whether the center of gravity position is within the target center of gravity range. If the center of gravity position is within the target center of gravity range, the vehicle is controlled to be raised from the current height to the target height, thereby adjusting the center of gravity position to the target center of gravity range. If the center of gravity position is not within the target center of gravity range, it is necessary to increase the load on the wheel diagonally opposite the blowout wheel, and it is not necessary to control the vehicle to be raised from the current height to the target height temporarily, until the center of gravity position is brought within the target center of gravity range by increasing the load on the wheel diagonally opposite the blowout wheel.

[0038] In steps S101 to S104 of this application, the vehicle's working status information is obtained. Based on the vehicle's working status information, the vehicle's wheel load information can be determined, and the vehicle's tire blowout situation can be judged. If a tire blows out, the vehicle's center of gravity position is determined based on the determined wheel load information. It is judged whether the center of gravity position is within the target center of gravity range. If the center of gravity position is within the target center of gravity range, the vehicle is controlled to be raised to the target height, thereby adjusting the center of gravity position to the target center of gravity range. This achieves the purpose of raising the height of the blown tire, thus solving the technical problem that it is difficult to reduce further damage to the tire and rim of the blown tire by controlling the transfer of the vehicle's center of gravity. It achieves the technical effect of reducing further damage to the tire and rim of the blown tire by controlling the transfer of the vehicle's center of gravity.

[0039] The method described in this embodiment will be further described below.

[0040] As an optional embodiment, in addition to step S104, which controls the vehicle to rise to the target height in response to the center of gravity being within the target center of gravity range, the control method for a vehicle when a tire blows out also includes: increasing the load on the wheel opposite the blown-out wheel in response to the center of gravity not being within the target center of gravity range; determining the center of gravity position based on the wheel load information corresponding to the load; and controlling the vehicle to rise to the target height in response to the center of gravity being within the target center of gravity range.

[0041] In this embodiment, the aforementioned increase in load on the wheel diagonally opposite to the wheel with the blown tire can be accomplished by transferring items from inside the cabin to above the wheel diagonally opposite to the wheel with the blown tire. Alternatively, the aforementioned increase in load on the wheel diagonally opposite to the wheel with the blown tire can be accomplished by increasing the load on the cabin above the wheel diagonally opposite to the wheel with the blown tire. This load can be a stone or any heavy object.

[0042] Optionally, in response to a tire blowout, after determining the vehicle's center of gravity position based on wheel load information, it is determined whether the center of gravity position is within the target center of gravity range. If the center of gravity position is not within the target center of gravity range, the load on the wheel diagonally opposite the blowout wheel is increased. Based on the wheel load information corresponding to the increased load, the center of gravity position after the increased load can be determined. It is then determined whether this center of gravity position is within the target center of gravity range. If the center of gravity position is within the target center of gravity range, the vehicle is raised to the target height, thereby adjusting the center of gravity position to the target center of gravity range. If the center of gravity position is not within the target center of gravity range, it is still necessary to increase the load on the wheel diagonally opposite the blowout wheel, and it is not necessary to temporarily raise the vehicle from the current height to the target height until the center of gravity position is brought within the target center of gravity range by increasing the load on the wheel diagonally opposite the blowout wheel.

[0043] As an optional embodiment, step S104, in response to the center of mass being within the target center of mass range, controls the vehicle to be raised to the target height, including: using the air springs of the wheels to raise the vehicle to the target height.

[0044] In this embodiment, the air spring of the aforementioned wheel can be used to adjust the suspension stiffness, wherein the stiffness of the suspension system can be changed by adjusting the pressure of the air spring.

[0045] Optionally, in response to a tire blowout, after determining the vehicle's center of gravity position based on wheel load information, it is determined whether the center of gravity position is within the target center of gravity range. If the center of gravity position is within the target center of gravity range, the vehicle can be raised from its current height to the target height using the air springs corresponding to the four wheels. For example, by controlling the height of the air springs corresponding to the four wheels, the height of the air spring on the side of the blowout wheel can be made to reach the target height difference with the height of the air spring corresponding to the tire diagonally opposite the blowout wheel, thereby completing the transfer of the vehicle's center of gravity.

[0046] Alternatively, after using the air springs of the wheels to raise the vehicle to the target height, if the air spring force supporting the wheel on the side with the blown tire is directly removed from the ground, then the wheel with the blown tire will no longer bear the load of the vehicle body.

[0047] As an optional embodiment, raising the vehicle to a target height using the air springs of the wheels includes: determining the difference between the height of the air spring on the side of the vehicle with the blown tire and the height of the air spring on the side of the vehicle opposite the blown tire; and raising the vehicle to the target height using the air springs in response to the difference being a difference threshold.

[0048] In this embodiment, the aforementioned difference threshold can be used to represent the target height difference between the height of the air spring on the side of the blown-out tire wheel and the height of the air spring on the diagonally opposite side of the blown-out tire wheel.

[0049] Optionally, in response to a tire blowout, after determining the vehicle's center of gravity position based on wheel load information, the height difference between the air spring on the side of the blown-out wheel and the air spring on the opposite side of the blown-out wheel is calculated. This yields the height difference between the two, and a determination is made as to whether this difference is a threshold value. If the difference is a threshold value, the vehicle is raised from its current height to a target height using the air springs corresponding to each of the four wheels. If the difference is not a threshold value, the height difference between the two is further adjusted until it reaches the threshold value.

[0050] As an optional embodiment, after the vehicle is raised to a target height using the air springs of the wheels, the control method for a tire blowout further includes: reducing the air pressure corresponding to the air spring on the side of the blowout wheel to a pressure threshold.

[0051] In this embodiment, the aforementioned air pressure threshold can be used to keep the vehicle's center of gravity within the target center of gravity range.

[0052] Optionally, after the vehicle is raised to the target height using the air springs of the wheels, the air spring on the side of the blown tire is controlled to decrease to the air pressure threshold, and the air pressure at the air spring on the side of the blown tire is maintained at the same air pressure threshold, thereby keeping the vehicle's center of gravity within the target center of gravity range.

[0053] As an optional embodiment, in step S104, after controlling the vehicle to rise to the target height in response to the center of gravity being within the target center of gravity range, the control method for the vehicle when a tire blows out further includes: acquiring wheel load information of the non-blowout side of the vehicle; maintaining the vehicle height at the target height in response to the wheel load information being total load information; sending a prompt message in response to the wheel load information not being total load information, increasing the air pressure corresponding to the air spring on the blowout wheel side to the original air pressure, and performing the step of determining the center of gravity position of the vehicle based on the wheel load information in response to the tire blowout, wherein the prompt message is used to indicate that the blowout wheel is in contact with the ground.

[0054] In this embodiment, the aforementioned wheel load information being total load information can be used to indicate that the sum of the monitored loads on the three wheels is equal to the total load, while the aforementioned wheel load information not being total load information can be used to indicate that the sum of the monitored loads on the three wheels is less than the total load.

[0055] Optionally, after controlling the vehicle to rise to the target height in response to the center of gravity being within the target center of gravity range, the wheel load information of the non-exploded tire side of the vehicle is acquired in real time. It is determined whether the wheel load information of the non-exploded tire side is the total load information. If the wheel load information is the total load information, then the three wheels on the non-exploded tire side are in contact with the ground, and the single wheel on the exploded tire side is not in contact with the ground, and the vehicle height is maintained at the target height. If the wheel load information is not the total load information, then the three wheels on the non-exploded tire side are in contact with the ground, and the single wheel on the exploded tire side is also in contact with the ground. A prompt message is sent to the display device, the air spring on the exploded tire side is controlled to increase to the original air pressure, and the step of determining the center of gravity position of the vehicle based on the wheel load information in response to the tire explosion of the vehicle is executed. The display device can be a display screen or other devices, which is only an example here and is not specifically limited.

[0056] Optionally, by sending a prompt message to the display device, the driver can be alerted that a tire blowout has occurred during vehicle operation due to bumps or jolting, causing the wheel to touch the ground and requiring another vehicle load transfer operation.

[0057] This embodiment acquires the vehicle's working status information. Based on this information, the vehicle's wheel load information can be determined, and the possibility of a tire blowout can be assessed. If a tire blows out, the vehicle's center of gravity is determined based on the determined wheel load information. It is then assessed whether the center of gravity is within the target center of gravity range. If it is, the vehicle is raised to the target height, thereby adjusting the center of gravity to the target range. This solves the technical problem of reducing further damage to the tire and rim of a blown-out wheel by controlling the vehicle's center of gravity shift. It achieves the technical effect of reducing further damage to the tire and rim of a blown-out wheel by controlling the vehicle's center of gravity shift.

[0058] Example 2

[0059] The technical solutions of the embodiments of the present invention will be illustrated below with reference to preferred embodiments.

[0060] In current vehicle operation, tire blowouts or other wheel malfunctions are common. To prevent further damage to the faulty tire and rim, a spare tire needs to be replaced promptly. When the vehicle reaches a repair shop, the faulty tire can be reused after simple repairs. However, equipping a vehicle with a spare tire requires installation space, thus reducing passenger space. Additionally, the spare tire's weight increases the vehicle's load and fuel consumption, making it difficult to mitigate further damage to the blown tire and rim by controlling the vehicle's center of gravity shift. Therefore, a method for controlling vehicle movement during a tire blowout is needed to ensure that further damage to the blown tire and rim can be reduced by controlling the vehicle's center of gravity shift.

[0061] In one related technology, a method for controlling a vehicle with a tire blowout is disclosed. This method includes: acquiring vehicle operating state information, wherein the operating state information includes at least: vehicle speed information, vehicle slope information, vehicle wheel height information, and vehicle spring pressure information; determining wheel load information based on the operating state information; determining the center of gravity position of the vehicle when any wheel blows out based on the wheel load information; and controlling the vehicle's movement during the blowout in response to the center of gravity position being within a target center of gravity range, wherein the target center of gravity range is a triangular area formed by the three wheels on the non-blowout side of the vehicle. However, this method only reduces the force on the blown-out wheel by acquiring the blown-out wheel information and based on that information, and cannot reduce further damage to the tire and rim of the blown-out wheel by controlling the shift of the vehicle's center of gravity.

[0062] However, this invention proposes a method for controlling vehicle movement during a tire blowout. By utilizing the vehicle's air springs, the vehicle height corresponding to the blown wheel and the vehicle height of three other points can be controlled. Furthermore, the difference between the vehicle height on the side of the blown wheel and the vehicle height on the side of the wheel diagonally opposite the blown wheel is changed, so that the blown wheel no longer bears the vehicle's load. This achieves the goal of raising the height of the blown wheel, solving the technical problem of reducing further damage to the tire and rim of a blown wheel by controlling the vehicle's center of gravity shift. It achieves the technical effect of reducing further damage to the tire and rim of a blown wheel by controlling the vehicle's center of gravity shift.

[0063] Figure 2 This is a schematic diagram of a functional communication architecture for maintaining stable vehicle operation according to an embodiment of the present invention, such as... Figure 2 As shown, this functional communication architecture can be implemented through vehicle center of gravity transfer and tire blowout wheel protection strategies.

[0064] Optionally, the vehicle control system can receive vehicle speed information, slope information (or calculate the current slope through acceleration signals), four-point height signals of the vehicle body, and pressure of the four air springs (FL, FR, RL, and RR) matched to the vehicle. Based on the received signals, it calculates the load on the four wheels of the vehicle and the center of gravity of the vehicle. Through control logic, it controls the air springs and active shock absorbers of the vehicle to achieve the transfer of the vehicle's center of gravity after a tire blowout.

[0065] Alternatively, the above control logic can be as follows:

[0066] The system acquires current road slope information, calculates the vehicle load on the four wheels using air spring pressure, and calculates the vehicle's center of gravity based on the slope. Specifically, it calculates whether adjusting the height of the four air springs after a tire blowout can shift the vehicle's center of gravity to its projection point on the horizontal plane (i.e., within the triangle formed by the projections of the three non-blowout wheels). The system then calculates the specific height adjustment required for the four air springs. If a tire blowout occurs, and the minimum and maximum heights provided by the air springs at the four corners of the vehicle cannot be adjusted to shift the center of gravity to the triangle formed by the three non-blowout wheels, the system records the corresponding tire and calculates the minimum load transfer required within the vehicle's cabin to achieve this shift.

[0067] Optionally, if the vehicle detects a tire blowout or a fault message and the driver triggers the tire blowout driving protection control function, then it is confirmed whether the blowout of the current faulty tire can achieve the transfer of the center of gravity for tire blowout protection. If it can, then the driver is prompted to keep the vehicle stopped, and the driver is asked to confirm entering the tire blowout protection control program and wait for the vehicle's center of gravity to be adjusted.

[0068] Optionally, the height of the vehicle's four air springs can be controlled so that the height of the air spring on the side of the blown tire is equal to the target height difference between the air spring on the diagonally opposite side of the blown tire and the air spring on the side of the tire opposite the blown tire. After the adjustment is completed, hold the position for 2 seconds. At this time, the center of gravity of the vehicle body has been adjusted to be within the triangle formed by the line connecting the three non-blown tire wheels. If the air spring force supporting the blown tire wheel to the ground is removed at this time, the blown tire wheel will no longer bear the load of the vehicle body.

[0069] Optionally, after the air spring adjustment is completed and held for 2 seconds, the air spring on the side of the blown tire is controlled to reduce the air pressure by a certain amount and maintain this state.

[0070] Optionally, if the vehicle is equipped with active shock absorbers, the active shock absorbers will be controlled to raise the wheel on the side of the blown tire to a certain distance from the rim on the ground, and the active shock absorber valve system will be closed to maintain this height. If the vehicle is not equipped with active shock absorbers or the active shock absorbers do not have the function of closing the valve system to maintain the height, this step can be skipped.

[0071] Optionally, to confirm that the wheel on the side with the blown tire is no longer bearing the vehicle load, the vehicle height information from the four vehicle height sensors is used to determine whether the wheel on the side with the blown tire has been lifted (this determination is not made if there is no active suspension), and the load of the four air springs is used to determine whether the vehicle load is concentrated on the non-blown tire three wheels.

[0072] Optionally, if it is confirmed at this time that the wheel on the side of the blown tire is no longer bearing the load of the vehicle body, then the driver is prompted that the tire driving protection has completed the transfer of the vehicle's center of gravity, and the vehicle can now be driven smoothly. The driver should try to avoid sudden acceleration or deceleration and try to avoid vehicle bumps.

[0073] Optionally, after the vehicle has been driving smoothly, the air springs on the three sides of the tire that has not blown out are monitored in real time, and the load value is calculated. This monitors whether the sum of the loads on the three wheels is less than the total load. If the sum of the loads on the three wheels is less than the total load, it is determined that the tire on the side with the blown out is in contact with the ground. The driver is then prompted that the bumps or jolting during the vehicle's operation caused the tire with the blown out to touch the ground, and the vehicle load transfer operation needs to be performed again. If the sum of the loads on the three wheels is equal to the total load, the current state is maintained until the vehicle stops, and the driver deactivates the tire blowout driving protection control function.

[0074] Optionally, during the above process, if the vehicle load distribution corresponding to the blown tire cannot cope with the center of gravity shift of the blowout protection, the driver is prompted to move items in the cabin to the tire diagonally opposite the blown tire, and / or increase the load in the cabin above the tire diagonally opposite the blown tire. This load can be a stone or any heavy object. The load distribution after the driver's operation is monitored in real time until the current load distribution of the vehicle meets the conditions for the center of gravity shift of the blowout protection. The driver is then prompted to keep the vehicle stopped, confirm the entry into the blowout tire protection control program, and wait for the vehicle's center of gravity to be adjusted.

[0075] Optionally, after the center of gravity is adjusted and it is confirmed that the blown tire is still bearing load, or when the driver is driving in a steady state and the blown tire is monitored to be bearing load, the driver will be prompted to perform the vehicle load transfer operation again and be prompted to perform the corresponding operation.

[0076] Figure 3 This is a flowchart of a vehicle driving control method when a tire blows out, according to an embodiment of the present invention. Figure 3 As shown, the method may include the following steps:

[0077] Step S301: Obtain the current road surface slope information.

[0078] After obtaining the current road slope information, proceed to step S302 to calculate the four-wheel load based on the air spring pressure.

[0079] After calculating the four-wheel load based on the air spring pressure, proceed to step S303 to calculate the vehicle's center of gravity position based on the four-wheel load.

[0080] After calculating the vehicle's center of gravity position based on the four-wheel load, proceed to step S304 to calculate whether the current center of gravity position has the tire blowout protection function when each tire blows out (that is, whether it can transfer the vehicle's center of gravity position to the triangular area formed by the three wheels on the non-blowout side of the ground plane by simply changing the height of the four corners of the vehicle body without performing other operations; limited by the minimum and maximum height limits provided by the air springs at the four corners of the vehicle body and the active suspension; if the current center of gravity position does not meet the conditions, it is necessary to move the load position inside the vehicle or add load at the diagonal of the blowout side wheel inside the cabin).

[0081] If the current center of gravity position at the time of each tire blowout does not provide tire blowout protection, proceed to step S309, prompting the driver to move items in the cabin to the area above the tire diagonally opposite the blowout tire, and / or increase the load in the cabin above the area above the tire diagonally opposite the blowout tire. This load can be a stone or any heavy object. If the current center of gravity position at the time of each tire blowout provides tire blowout protection, proceed to step S305, calculating the required increase in vehicle height on the blowout side and decrease in vehicle height diagonally opposite the blowout tire to achieve tire blowout protection, or the minimum load transfer required to complete the load transfer for tire blowout protection.

[0082] After calculating the required increase in vehicle height on the side of the tire blowout and decrease in vehicle height diagonally opposite the wheel on the side of the tire blowout to achieve the tire blowout driving protection function, or the minimum load transfer required to complete the load transfer for tire blowout driving protection, proceed to step S306 to determine whether tire blowout information has been received.

[0083] If no tire blowout information is received, proceed to step S301 to obtain the current road slope information. If tire blowout information is received, proceed to steps S307 and S308, where the driver triggers the tire blowout driving protection control function to determine whether the current vehicle load distribution can cope with the center of gravity shift of the tire blowout protection.

[0084] If the current vehicle load distribution can handle the center of gravity shift during tire blowout protection, proceed to steps S311, S312, S313, S314, and S315. The driver is prompted to keep the vehicle stationary. The driver confirms entry into the tire blowout protection control procedure and waits for the center of gravity to adjust. The system then controls the air spring on the opposite side of the blowout tire to raise the vehicle to the target height, controls the air spring on the blowout side to raise the vehicle to the target height, controls the air spring on the blowout side to reduce its pressure and maintain this state, and controls the active shock absorber to raise the wheel on the blowout side until the rim is a certain distance off the ground. The active shock absorber valve system is then closed to maintain this height (this step can be skipped if the vehicle does not have active shock absorbers or the active shock absorbers do not have a valve system that can be closed to maintain the height).

[0085] If the current vehicle load distribution cannot cope with the center of gravity shift of the tire blowout protection, proceed to steps S309 and S310, prompting the driver to move items in the cabin to the tire diagonally opposite the blown tire, and / or increase the load in the cabin above the tire diagonally opposite the blown tire. This load can be a stone or any heavy object. Also, determine whether the current vehicle load distribution can cope with the center of gravity shift of the tire blowout protection. If the current vehicle load distribution can cope with the center of gravity shift of the tire blowout protection, proceed to step S311. If the current vehicle load distribution cannot cope with the center of gravity shift of the tire blowout protection, proceed to step S309.

[0086] After controlling the air spring on the side of the blown tire to reduce the air pressure to a certain level and maintain this state, controlling the active shock absorber to raise the wheel on the side of the blown tire to a certain distance from the ground, and closing the active shock absorber valve system to maintain this height (if the vehicle does not have an active shock absorber or the active shock absorber does not have the function of closing the valve system to maintain the height, this step can be skipped), proceed to step S316, confirm whether the wheel on the side of the blown tire has been lifted based on the vehicle height information of the four vehicle height sensors, and at the same time, confirm whether the vehicle load is concentrated on the non-blown tire three-wheeler based on the four air springs.

[0087] If it is confirmed that the wheel on the side of the blown tire has not been lifted, and it is also confirmed that the vehicle load is not concentrated on the non-blown tire tricycle, then proceed to steps S317, S318, and S319, prompting the driver to perform the vehicle load transfer operation again, restore the air spring pressure to the corresponding value, calculate the minimum load transfer required to achieve the tire blowout driving protection function, and the corresponding required vehicle height increase on the side of the blown tire and the vehicle height decrease diagonally opposite the wheel on the side of the blown tire.

[0088] If it is confirmed that the wheel on the side with the blown tire has been lifted, and it is also confirmed that the vehicle load is concentrated on the three wheels without the blown tire, then proceed to steps S320 and S321, prompting the driver that the tire driving protection vehicle center of gravity transfer has been completed, and the vehicle can now be driven smoothly. It is necessary to avoid sudden acceleration or deceleration as much as possible, and to avoid vehicle bumps as much as possible. In addition, monitor the load values ​​of the three air springs on the three sides of the wheel without the blown tire, and monitor whether the sum of the loads carried by the three wheels is less than the total load.

[0089] If the sum of the loads on the three wheels is less than the total load, proceed to step S322, prompting the driver that the tire blowout caused the wheel to touch the ground due to bumps or jolting during vehicle operation. If the sum of the loads on the three wheels is equal to the total load, proceed to step S323, maintaining the current state until the vehicle stops, and the driver deactivates the tire blowout driving protection control function.

[0090] In this embodiment, by controlling the vehicle height corresponding to the blown tire and the vehicle height of the other three points, and by changing the difference between the vehicle height on the side of the blown tire and the vehicle height on the side of the diagonally opposite wheel, the center of gravity of the vehicle is positioned within the triangle connecting the three wheels that have not blown tires. Then, the wheel on the blown tire side is raised to a certain distance from the ground by the active shock absorber (active hydraulic shock absorber control and execution unit), and the height of the blown tire wheel is maintained by closing the active shock absorber valve system. This ensures that there is a certain gap between the rim and the tire of the wheel on the blown tire side during vehicle operation, thereby solving the technical problem and achieving the technical effect.

[0091] Example 3

[0092] According to an embodiment of the present invention, a control device for a vehicle tire blowout is also provided. It should be noted that this control device for a vehicle tire blowout can be used to execute a control method for a vehicle tire blowout as described in Embodiment 1.

[0093] Figure 4 This is a schematic diagram of a control device for a vehicle tire blowout according to an embodiment of the present invention. Figure 4 As shown, the control device 400 for a vehicle tire blowout may include: a first acquisition unit 401, a first determination unit 402, a first response unit 403, and a second response unit 404.

[0094] The first acquisition unit 401 is used to acquire the vehicle's working status information, wherein the working status information includes at least: the vehicle's speed, the vehicle's slope information, the vehicle's wheel height, and the vehicle's spring pressure.

[0095] The first determining unit 402 is used to determine the wheel load information of the vehicle based on the working status information.

[0096] The first response unit 403 is used to determine the position of the vehicle's center of gravity based on the wheel load information in response to a tire blowout.

[0097] The second response unit 404 is used to control the vehicle to rise to a target height in response to the center of gravity position being within the target center of gravity range. The target height is used to adjust the center of gravity position to the target center of gravity range, which is the triangular area formed by the wheel on the side of the vehicle that has not blown out.

[0098] Optionally, the control device 400 for a vehicle in the event of a tire blowout may further include: a third response unit, used to increase the load on the wheel opposite the blowout wheel in response to the center of gravity position not being within the target center of gravity range; a second determination unit, used to determine the center of gravity position based on wheel load information corresponding to the load; and a fourth response unit, used to control the vehicle to be raised to the target height in response to the center of gravity position being within the target center of gravity range.

[0099] Optionally, the second response unit 404 may include a lifting module for raising the vehicle to a target height using air springs on the wheels.

[0100] Optionally, the lifting module may include: a determining submodule for determining the difference between the height of the air spring on the side of the blown tire wheel and the height of the air spring on the diagonally opposite side of the blown tire wheel; and a responding submodule for raising the vehicle to a target height using the air springs in response to the difference being a difference threshold.

[0101] Optionally, the control device 400 for a tire blowout may further include a control unit for controlling the air spring on the side of the blowout wheel to decrease to a pressure threshold.

[0102] Optionally, the control device 400 for a vehicle in the event of a tire blowout may further include: a second acquisition unit for acquiring wheel load information on the side of the vehicle that is not blown out; a fifth response unit for maintaining the vehicle height at a target height in response to the wheel load information being total load information; and a sixth response unit for sending a prompt message in response to the wheel load information not being total load information, controlling the air spring on the side of the blown-out wheel to increase to its original air pressure, and performing the step of determining the vehicle's center of gravity position based on the wheel load information in response to the vehicle's tire blowout.

[0103] In this embodiment, a first acquisition unit is used to acquire the vehicle's working status information, which includes at least: the vehicle's speed, the vehicle's slope information, the vehicle's wheel height, and the vehicle's spring pressure; a first determination unit is used to determine the vehicle's wheel load information based on the working status information; a first response unit is used to determine the vehicle's center of gravity position based on the wheel load information in response to a tire blowout; and a second response unit is used to control the vehicle to rise to a target height in response to the center of gravity position being within a target center of gravity range, wherein the target height is used to adjust the center of gravity position to the target center of gravity range, and the target center of gravity range is the triangular area formed by the wheel on the non-blowout side of the vehicle. This solves the technical problem of difficulty in reducing further damage to the tire and rim of a blowout tire by controlling the shift of the vehicle's center of gravity, and achieves the technical effect of reducing further damage to the tire and rim of a blowout tire by controlling the shift of the vehicle's center of gravity.

[0104] Example 4

[0105] According to an embodiment of the present invention, a computer-readable storage medium is also provided, the storage medium including a stored program, wherein the program executes the control method for a vehicle tire blowout as described in Embodiment 1.

[0106] Example 5

[0107] According to an embodiment of the present invention, a processor is also provided for running a program, wherein the program is executed by the processor to perform the control method for a vehicle tire blowout as described in Embodiment 1.

[0108] Example 6

[0109] According to an embodiment of the present invention, a vehicle is also provided for performing any of the control methods for a vehicle tire blowout in Embodiment 1.

[0110] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0111] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0112] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between units or modules may be electrical or other forms.

[0113] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0114] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0115] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0116] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A control method for a vehicle tire blowout, characterized in that, include: Obtain vehicle operating status information, wherein the operating status information includes at least: vehicle speed, vehicle slope information, vehicle wheel height, and vehicle spring pressure; Based on the working status information, the wheel load information of the vehicle is determined; In response to a tire blowout of the vehicle, the position of the vehicle's center of gravity is determined based on the wheel load information. In response to the center of gravity being within the target center of gravity range, the difference between the height of the air spring on the side of the blown tire wheel and the height of the air spring on the opposite side of the blown tire wheel is determined; in response to the difference being a difference threshold, the vehicle is raised to a target height using the air springs, wherein the target height is used to adjust the center of gravity to the target center of gravity range, the target center of gravity range being a triangular area formed by the tires on the non-blown tire side of the vehicle; After raising the vehicle to the target height in response to the center of gravity being within the target center of gravity range, the method further includes: acquiring wheel load information on the side of the vehicle without a blowout; maintaining the vehicle height at the target height in response to the wheel load information being total load information; sending a prompt message in response to the wheel load information not being total load information, increasing the air pressure corresponding to the air spring on the side of the blowout wheel to the original air pressure, and performing the step of determining the center of gravity position of the vehicle based on the wheel load information in response to the vehicle's wheel blowout, wherein the prompt message is used to indicate that the blowout wheel is in contact with the ground.

2. The method according to claim 1, characterized in that, In addition to controlling the vehicle to rise to the target height in response to the center of mass being within the target center of mass range, the method further includes: In response to the fact that the center of mass position is not within the target center of mass range, the load on the wheel diagonally opposite the blown-out wheel is increased; The position of the center of gravity is determined based on the wheel load information corresponding to the load. In response to the fact that the center of mass is within the range of the target center of mass, the vehicle is controlled to be raised to the target height.

3. The method according to claim 1, characterized in that, After raising the vehicle to a target height using the air springs of the wheels, the method further includes: Reduce the air pressure corresponding to the air spring on the side of the blown tire wheel to the air pressure threshold.

4. A control device for a vehicle tire blowout, characterized in that, include: The first acquisition unit is used to acquire the vehicle's operating status information, wherein the operating status information includes at least: the vehicle's speed, the vehicle's slope information, the vehicle's wheel height, and the vehicle's spring pressure. The first determining unit is used to determine the wheel load information of the vehicle based on the working status information; The first response unit is used to respond to a tire blowout of the vehicle and determine the position of the vehicle's center of gravity based on the wheel load information. The second response unit is configured to, in response to the center of gravity being within the target center of gravity range, determine the difference between the height of the air spring on the side of the vehicle with the blown tire and the height of the air spring on the side diagonally opposite the blown tire; and, in response to the difference being a difference threshold, use the air spring to raise the vehicle to a target height, wherein the target height is used to adjust the center of gravity position to the target center of gravity range, and the target center of gravity range is a triangular area formed by passing through the wheel on the side of the vehicle without the blown tire. After raising the vehicle to the target height in response to the center of gravity being within the target center of gravity range, the device is further configured to acquire wheel load information on the side of the vehicle without a blowout; maintain the vehicle height at the target height in response to the wheel load information being total load information; and send a prompt message in response to the wheel load information not being total load information, increase the air pressure corresponding to the air spring on the side of the blowout wheel to the original air pressure, and perform the step of determining the center of gravity position of the vehicle based on the wheel load information in response to the vehicle's wheel blowout, wherein the prompt message is used to indicate that the blowout wheel has contacted the ground.

5. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein, when the program is executed, it controls the device containing the computer-readable storage medium to perform the control method for a vehicle tire blowout as described in any one of claims 1 to 3.

6. A processor, characterized in that, The processor is used to run a program, wherein the program, when run by the processor, executes the control method for a vehicle tire blowout as described in any one of claims 1 to 3.

7. A vehicle, characterized in that, The vehicle is used to execute the control method for a tire blowout as described in any one of claims 1 to 3.

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