Methods, apparatus, devices, and media for reducing vehicle crash damage

Abstract

The application discloses a method, device, equipment and medium for reducing vehicle collision damage, and belongs to the technical field of vehicle safety. The method comprises the following steps: predicting whether a first collision between a host vehicle and a front vehicle in the same lane is at risk, and whether a second collision between the host vehicle and a rear vehicle in the same lane is at risk; if the first collision is at risk and the second collision is at risk, predicting a first collision acceleration of the host vehicle when the first collision occurs and a second collision acceleration of the host vehicle when the second collision occurs; and if the first collision acceleration or the second collision acceleration is greater than a first acceleration threshold, controlling the vehicle to ignite a safety airbag and tighten a safety belt before the collision occurs. The method ignites the safety airbag before the vehicle collides, can ensure that the safety airbag is successfully ignited, makes the safety airbag play an effective protection role, and reduces the harm caused by the collision to people in the vehicle.

Description

Technical Field

[0001] This invention relates to the field of vehicle safety technology, and in particular to a method, apparatus, device, and medium for reducing vehicle collision damage. Background Technology

[0002] In recent years, with the continuous increase in the total number of cars, automobiles have become an indispensable means of transportation. Therefore, vehicle collision warning and safety protection have always been a hot topic in automotive safety assistance research.

[0003] In existing technology, when a collision sensor detects a vehicle collision, it determines whether to deploy the airbags based on the actual collision conditions. However, when a collision actually occurs, the collision may cause the vehicle's detection or control equipment to malfunction, resulting in the airbags failing to deploy properly and thus failing to provide the intended protection, making it difficult to effectively reduce the personal injury caused to passengers. Summary of the Invention

[0004] In view of the above problems, the present invention is proposed to provide a method, apparatus, device, and medium for reducing vehicle collision injuries in order to overcome or at least partially solve the above problems. When it is detected that the vehicle may collide with the vehicle in front, and may also collide with the vehicle behind, if the predicted collision intensity is high, the airbags can be deployed before the collision occurs. This ensures the airbags deploy smoothly, enabling them to provide effective protection and reducing injuries to vehicle occupants.

[0005] In a first aspect, the present invention provides a method for reducing vehicle collision damage, the method comprising:

[0006] Predict whether there is a risk of a first collision between this vehicle and the vehicle in front in the same lane, and whether there is a risk of a second collision between this vehicle and the vehicle behind in the same lane;

[0007] If there is a risk of the first collision and a risk of the second collision, then predict the first collision acceleration of the vehicle when the first collision occurs, and the second collision acceleration of the vehicle when the second collision occurs;

[0008] If the first or second collision acceleration is greater than the first acceleration threshold, the vehicle is controlled to deploy the airbags and tighten the seat belts before a collision occurs.

[0009] Optionally, predicting whether there is a risk of a first collision between the vehicle and the vehicle in front in the same lane, and whether there is a risk of a second collision between the vehicle and the vehicle behind in the same lane, includes:

[0010] Get the speed of this vehicle, the speed of the vehicle in front, and the speed of the vehicle behind, as well as the distance between this vehicle and the vehicle in front of it, and the distance between this vehicle and the vehicle behind it.

[0011] Based on the speed of the preceding vehicle, the distance to the preceding vehicle, the speed of the following vehicle, the distance to the following vehicle, and the speed of the current vehicle, predict whether there is a risk of the current vehicle colliding with the preceding vehicle in the first collision, and whether there is a risk of the current vehicle colliding with the following vehicle in the second collision.

[0012] Optionally, before predicting whether there is a risk of a first collision between the vehicle and the vehicle in front in the same lane, and whether there is a risk of a second collision between the vehicle and the vehicle behind in the same lane, the method further includes:

[0013] The vehicle's driving conditions are detected, including at least highway conditions and urban road conditions;

[0014] If the driving conditions of the vehicle are highway conditions, then determine whether the vehicle speed is greater than the speed threshold.

[0015] If the vehicle speed is greater than the speed threshold, then the steps of predicting whether there is a risk of a first collision between the vehicle and the vehicle in front in the same lane, and whether there is a risk of a second collision between the vehicle and the vehicle behind in the same lane are performed.

[0016] Optionally, the method further includes:

[0017] If there is a risk of the first collision and no risk of the second collision, the vehicle speed is reduced to a first speed range and a first alarm message is issued.

[0018] If there is no risk of the first collision, but there is a risk of the second collision, the vehicle speed is increased to a second speed range, and a second alarm message is issued.

[0019] Optionally, controlling the vehicle to deploy the airbags before a collision includes:

[0020] Predict the time of the first collision when the first collision occurs, and the time of the second collision when the second collision occurs;

[0021] Obtain the inflation time and deployment time of the airbag;

[0022] Based on the first collision time, the inflation time, and the ejection time, determine the first target vehicle distance for the airbag to deploy;

[0023] The second target vehicle distance for detonating the airbag is determined based on the second collision time, the inflation time, and the ejection time.

[0024] The airbag is deployed when the distance to the vehicle in front decreases to the first target distance or the distance to the vehicle behind decreases to the second target distance.

[0025] Optionally, determining the first target vehicle distance for deploying the airbag based on the first collision time, the inflation time, and the deployment time includes:

[0026] Determine the first relative velocity and the first relative acceleration between the preceding vehicle and the vehicle itself;

[0027] Based on the first relative velocity, the first relative acceleration, the first collision time, the inflation time, and the ejection time, predict the first relative distance between the vehicle and the vehicle in front before the airbag is deployed;

[0028] The difference between the distance to the preceding vehicle and the first relative distance is calculated to obtain the first target distance.

[0029] Optionally, the method further includes:

[0030] If the first collision acceleration and the second collision acceleration are not greater than the set first acceleration threshold, then the vehicle is controlled to tighten the seat belt, and it is determined whether the first collision acceleration and the second collision acceleration are greater than the second acceleration threshold, wherein the second acceleration threshold is less than the first acceleration threshold;

[0031] If the first collision acceleration or the second collision acceleration is greater than the second acceleration threshold, the driver is alerted to whether the airbag needs to be deployed.

[0032] If the driver needs to deploy the airbag, the vehicle is controlled to deploy the airbag before a collision occurs.

[0033] Secondly, the present invention provides a device for reducing vehicle collision damage, the device comprising:

[0034] The first prediction module is used to predict whether there is a risk of a first collision between the vehicle and the vehicle in front in the same lane, and whether there is a risk of a second collision between the vehicle and the vehicle behind in the same lane.

[0035] The second prediction module is used to predict the first collision acceleration of the vehicle when the first collision occurs and the second collision occurs if there is a risk of the first collision and a risk of the second collision.

[0036] The first control module is configured to control the vehicle to deploy the airbags and tighten the seat belts before a collision occurs if the first collision acceleration or the second collision acceleration is greater than the first acceleration threshold.

[0037] Optionally, the first prediction module is also used for:

[0038] Get the speed of this vehicle, the speed of the vehicle in front, and the speed of the vehicle behind, as well as the distance between this vehicle and the vehicle in front of it, and the distance between this vehicle and the vehicle behind it.

[0039] Based on the speed of the preceding vehicle, the distance to the preceding vehicle, the speed of the following vehicle, the distance to the following vehicle, and the speed of the current vehicle, predict whether there is a risk of the current vehicle colliding with the preceding vehicle in the first collision, and whether there is a risk of the current vehicle colliding with the following vehicle in the second collision.

[0040] Optionally, the device further includes a detection module for:

[0041] The vehicle's driving conditions are detected, including at least highway conditions and urban road conditions;

[0042] If the driving conditions of the vehicle are highway conditions, then determine whether the vehicle speed is greater than the speed threshold.

[0043] If the vehicle speed is greater than the speed threshold, then the steps of predicting whether there is a risk of a first collision between the vehicle and the vehicle in front in the same lane, and whether there is a risk of a second collision between the vehicle and the vehicle behind in the same lane are performed.

[0044] Optionally, the device further includes a second control module for:

[0045] If there is a risk of the first collision and no risk of the second collision, the vehicle speed is reduced to a first speed range and a first alarm message is issued.

[0046] If there is no risk of the first collision, but there is a risk of the second collision, the vehicle speed is increased to a second speed range, and a second alarm message is issued.

[0047] Optionally, the first control module includes:

[0048] The prediction unit is used to predict the first collision time when the first collision occurs and the second collision time when the second collision occurs.

[0049] The acquisition unit is used to acquire the inflation time and deployment time of the airbag;

[0050] The first determining unit is configured to determine the first target vehicle distance for detonating the airbag based on the first collision time, the inflation time, and the ejection time.

[0051] The second determining unit is used to determine the second target vehicle distance for detonating the airbag based on the second collision time, the inflation time, and the ejection time.

[0052] The detonation unit is used to detonate the airbag when the distance to the preceding vehicle decreases to the first target distance or the distance to the following vehicle decreases to the second target distance.

[0053] Optionally, the first determining unit is also used for:

[0054] Determine the first relative velocity and the first relative acceleration between the preceding vehicle and the vehicle itself;

[0055] Based on the first relative velocity, the first relative acceleration, the first collision time, the inflation time, and the ejection time, predict the first relative distance between the vehicle and the vehicle in front before the airbag is deployed;

[0056] The difference between the distance to the preceding vehicle and the first relative distance is calculated to obtain the first target distance.

[0057] Optionally, the device further includes a third control module for:

[0058] If the first collision acceleration and the second collision acceleration are not greater than the set first acceleration threshold, then the vehicle is controlled to tighten the seat belt, and it is determined whether the first collision acceleration and the second collision acceleration are greater than the second acceleration threshold, wherein the second acceleration threshold is less than the first acceleration threshold;

[0059] If the first collision acceleration or the second collision acceleration is greater than the second acceleration threshold, the driver is alerted to whether the airbag needs to be deployed.

[0060] If the driver needs to deploy the airbag, the vehicle is controlled to deploy the airbag before a collision occurs.

[0061] Thirdly, the present invention provides an electronic device comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the computer instructions to perform the method for reducing vehicle collision damage as described in the first aspect.

[0062] Fourthly, the present invention provides a computer-readable storage medium storing computer instructions for causing the computer to perform the method for reducing vehicle collision damage as described in the first aspect.

[0063] The technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0064] This invention provides a method, apparatus, device, and medium for reducing vehicle collision injuries. It predicts the risk of a first collision with a vehicle in the same lane and the risk of a second collision with a vehicle behind it in the same lane. If both risks exist, it indicates the collision may be unavoidable. In cases where a collision is unavoidable, the method predicts the vehicle's initial collision acceleration and the second collision acceleration, using these accelerations to determine the collision intensity. If either the initial or second collision acceleration exceeds a set acceleration threshold, indicating a potentially severe collision, the method controls the vehicle to deploy airbags and tighten seatbelts before the collision to protect occupants. This method, when detecting a potential collision with both the vehicle in front and behind, and predicting a high collision intensity, deploys airbags before the collision, ensuring successful deployment and effective protection, thus reducing injury to occupants.

[0065] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0066] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0067] Figure 1 This is a flowchart of a method for reducing vehicle collision damage provided by an embodiment of the present invention;

[0068] Figure 2 This is a structural block diagram of a device for reducing vehicle collision damage provided in an embodiment of the present invention. Detailed Implementation

[0069] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0070] Figure 1 This is a flowchart of a method for reducing vehicle collision damage provided by an embodiment of the present invention, such as... Figure 1 As shown, the method includes:

[0071] Step S110: Predict whether there is a risk of a first collision between the vehicle and the vehicle in front in the same lane, and whether there is a risk of a second collision between the vehicle and the vehicle behind in the same lane.

[0072] In this embodiment, the risk of a first collision is the sum of the distance traveled by the vehicle in front after emergency braking and the current distance to the vehicle in front, which is less than the sum of the distance traveled by the vehicle within the driver's reaction time and the distance traveled after emergency braking following the reaction time; the risk of a second collision is the sum of the distance traveled by the vehicle within the driver's reaction time and the current distance to the vehicle behind, which is less than the sum of the distance traveled by the vehicle behind the driver within the driver's reaction time and the distance traveled after emergency braking following the reaction time.

[0073] The distance between the vehicle in front and the vehicle in front is the distance between the vehicle in front, and the distance between the vehicle behind and the vehicle behind is the distance between the vehicle in front and the vehicle behind. The driver's reaction time can be determined based on historical data or through experiments. For example, the reaction time is 0.8 seconds.

[0074] This can be understood as follows: During vehicle operation, if the vehicle in front brakes suddenly, and the driver of this vehicle reacts within a certain time and takes emergency braking measures, and after both vehicles come to a stop, the distance between the two vehicles decreases to less than zero, then there is a risk of collision between this vehicle and the vehicle in front. Similarly, if the driver of the vehicle behind brakes suddenly, and the driver of the vehicle behind brakes suddenly, and after both vehicles come to a stop, the distance between the two vehicles decreases to less than zero, then there is a risk of collision between the vehicle behind and this vehicle.

[0075] Optionally, step S110 includes:

[0076] The first step is to obtain the speed of your vehicle, the speed of the vehicle in front, the speed of the vehicle behind, the distance between your vehicle and the vehicle in front of the vehicle in front, and the distance between your vehicle and the vehicle behind the vehicle.

[0077] In this embodiment, the speed of the vehicle in front, the distance to the vehicle in front, the speed of the vehicle behind, and the distance to the vehicle behind can be detected in real time using a camera array and a radar array.

[0078] The second step is to predict, based on the speed of the vehicle in front, the distance to the vehicle in front, the speed of the vehicle behind, the distance to the vehicle behind, and the speed of your own vehicle, whether there is a risk of a first collision between your vehicle and the vehicle in front, and whether there is a risk of a second collision between your vehicle and the vehicle behind.

[0079] In this embodiment, the acceleration of the vehicle in front can be obtained by dividing the speed change of the vehicle in front by the time interval between the two measurement points provided by the radar array; similarly, the acceleration of the vehicle in front and the acceleration of the vehicle behind can be obtained.

[0080] Then, based on the current speed and acceleration of the vehicle in front, the distance it can travel after emergency braking can be calculated. Similarly, based on the current speed and acceleration of the current vehicle, the distance it can travel within the driver's reaction time and the distance it can travel after emergency braking can be calculated. Likewise, based on the current speed and acceleration of the vehicle behind, the distance it can travel within the driver's reaction time and the distance it can travel after emergency braking can be calculated. If the sum of the distance traveled by the vehicle in front after emergency braking and the distance to the vehicle in front is less than the sum of the distance traveled by the current vehicle within the driver's reaction time and the distance traveled after emergency braking, it indicates that a collision is possible. If the sum of the distance traveled by the vehicle in front after emergency braking and the distance to the vehicle in front is not less than the sum of the distance traveled by the current vehicle within the driver's reaction time and the distance traveled after emergency braking, it indicates that there is still a certain distance between the current vehicle and the vehicle in front, and a collision will not occur. Similarly, if the sum of the distance traveled by this vehicle after emergency braking and the distance to the vehicle behind is less than the distance traveled by the vehicle behind within the driver's reaction time and the distance traveled after emergency braking, it indicates that a collision may occur between this vehicle and the vehicle behind. If the sum of the distance traveled by this vehicle after emergency braking and the distance to the vehicle behind is not less than the distance traveled by the vehicle behind within the driver's reaction time and the distance traveled after emergency braking, it indicates that there is still a certain distance between this vehicle and the vehicle behind, and a collision will not occur.

[0081] Optionally, before step S110, the method further includes:

[0082] The system detects the vehicle's road conditions; if the vehicle is traveling on a highway, it determines whether the vehicle's speed exceeds a speed threshold; if the vehicle's speed exceeds the speed threshold, it then performs steps to predict whether there is a risk of a first collision between the vehicle and the vehicle in front in the same lane, and whether there is a risk of a second collision between the vehicle and the vehicle behind in the same lane.

[0083] In this embodiment, the driving conditions include at least highway conditions and urban road conditions. The driving conditions can be determined by detecting ETC (Electronic Toll Collection) information, navigation information, and GPS (Global Positioning System) information.

[0084] In this embodiment, considering that when a vehicle is traveling on a highway, the driver is prone to collisions due to adverse factors such as fatigue, inattention, sudden physical discomfort, excessive speed, or inclement weather. Therefore, when it is detected that the vehicle is traveling on a highway and its speed exceeds a speed threshold, a function to reduce vehicle collision damage can be activated. That is, by reducing vehicle collision damage, the injury to people and vehicles caused by a collision can be reduced.

[0085] Optionally, the method further includes:

[0086] If there is a risk of a first collision but no risk of a second collision, the vehicle speed will be reduced to a first speed range, and a first warning message will be issued. If there is no risk of a first collision but a risk of a second collision, the vehicle speed will be increased to a second speed range, and a second warning message will be issued.

[0087] In this embodiment, if there is a risk of a first collision but no risk of a second collision, the risk of a first collision can be eliminated by increasing the distance between the vehicle and the vehicle in front, i.e., by reducing the vehicle's speed to increase the distance to the vehicle in front. However, to prevent excessively rapid deceleration that would reduce the distance between the vehicle and the vehicle behind too much, thereby increasing the risk of a second collision, it is necessary to control the reduced vehicle speed within a first speed range, i.e., controlling the reduced vehicle speed to be less than the upper limit of the first speed range to ensure that the risk of a first collision can be eliminated. At the same time, the reduced vehicle speed should be controlled to be greater than the lower limit of the first speed range to ensure that the risk of a second collision is not caused.

[0088] In this embodiment, if there is no risk of a first collision but a risk of a second collision, then the risk of a second collision can be eliminated by increasing the distance between the vehicle and the vehicle behind, i.e., by increasing the vehicle's speed to increase the distance to the vehicle behind. However, to prevent excessive acceleration that would reduce the distance between the vehicle and the vehicle in front too much, thereby increasing the risk of a first collision, it is necessary to control the increased vehicle speed within a second speed range. That is, control the increased vehicle speed to be less than the upper limit of the second speed range to ensure that the risk of a first collision is not caused. At the same time, control the increased vehicle speed to be greater than the lower limit of the second speed range to ensure that the risk of a second collision is eliminated.

[0089] Among them, the upper and lower limits of the first and second speed ranges can be determined based on the real-time detected speeds of the vehicles in front, the distance to the vehicles in front, the speeds of the vehicles behind, the distance to the vehicle itself, and the speed of the vehicle itself.

[0090] For example, if the vehicle's speed at a certain moment is V1, then the distance traveled by the vehicle from the start of emergency braking to the moment its speed reaches zero is equal to the sum of the distance traveled by the vehicle in front during that time and the distance between the two vehicles at that moment. If the vehicle's speed at a certain moment is V2, then the distance traveled by the vehicle behind during emergency braking to the moment its speed reaches zero is equal to the sum of the distance traveled by the vehicle in front during that time and the distance between the two vehicles at that moment. Then, the upper limit of the speed range corresponding to that moment can be set as V1, and the lower limit can be set as V2.

[0091] In this embodiment, the first alarm information can be an audible and visual alarm to remind the driver that there is a risk of collision between the vehicle and the vehicle in front, so that the driver will not accelerate; the first alarm information can be an audible and visual alarm to remind the driver that there is a risk of collision between the vehicle and the vehicle behind, so that the driver will not perform emergency braking or other operations.

[0092] Step S120: If there is a risk of a first collision and a risk of a second collision, predict the first collision acceleration of the vehicle when the first collision occurs, and the second collision acceleration of the vehicle when the second collision occurs.

[0093] In this embodiment, if a collision is predicted to be unavoidable, the intensity of the collision is further predicted, i.e., the collision intensity is determined by the collision acceleration. The collision acceleration is the acceleration of the vehicle at the moment of collision.

[0094] In this embodiment, since the vehicle collision is an irreversible collision, the instantaneous speeds of the two vehicles are the same after the collision. According to the law of conservation of momentum, the instantaneous speed of the vehicle after the collision is only affected by the mass of the vehicle itself and the mass of the colliding vehicles.

[0095] Therefore, based on the vehicle's speed, acceleration, distance to the vehicle in front (distance to the vehicle behind), speed of the vehicle in front (distance to the vehicle behind), and acceleration of the vehicle in front (acceleration of the vehicle behind), the instantaneous speed of the vehicle before the collision can be predicted. By obtaining the mass of the vehicle in front (or behind) and the mass of the vehicle itself at the time of the collision, the instantaneous speed of the vehicle after the collision can be predicted. Furthermore, based on the distance between the airbag's acceleration sensor and the front bumper, the minimum time for the collision to occur can be calculated. Finally, based on the vehicle's instantaneous speed before the collision, the vehicle's instantaneous speed after the collision, and the minimum time for the collision, the maximum acceleration at the time of the collision can be calculated. This maximum acceleration is taken as the vehicle's collision acceleration.

[0096] Step S130: If the first collision acceleration or the second collision acceleration is greater than the first acceleration threshold, control the vehicle to deploy the airbags and tighten the seat belts before the collision occurs.

[0097] This can be understood as follows: if the first or second collision acceleration is greater than the first acceleration threshold, it indicates that the collision intensity is relatively high, and it is necessary to actively deploy the airbags and tighten the seat belts to protect the safety of the occupants.

[0098] Optionally, the method also includes:

[0099] If the first collision acceleration and the second collision acceleration are not greater than the set first acceleration threshold, the vehicle will tighten the seat belts and determine whether the first collision acceleration and the second collision acceleration are greater than the second acceleration threshold. If the first collision acceleration or the second collision acceleration is greater than the second acceleration threshold, the driver will be reminded whether the airbags need to be deployed. If the driver needs to deploy the airbags, the vehicle will deploy the airbags before the collision occurs.

[0100] The second acceleration threshold is less than the first acceleration threshold.

[0101] In this embodiment, if the first collision acceleration and the second collision acceleration are not greater than a set acceleration threshold, it indicates that the collision intensity is small and the airbag does not meet the conditions for active deployment. Then, it is determined whether the first collision acceleration and the second collision acceleration are greater than the second acceleration threshold corresponding to passive deployment of the airbag. If so, the conditions for passive deployment are met, and it is necessary to obtain whether the driver intends to deploy the airbag, that is, whether the driver needs to manually deploy the airbag. If the driver intends to, the airbag is deployed before the collision occurs.

[0102] Optionally, step S130 includes:

[0103] The first step is to predict the time of the first collision and the time of the second collision.

[0104] In this embodiment, the time required from the current moment until the collision between the current vehicle and the preceding vehicle (i.e., the first collision time) can be calculated based on the speed and acceleration of the preceding vehicle, the current vehicle's speed and acceleration, and the distance between the current vehicle and the preceding vehicle. Similarly, the time required from the current moment until the collision between the current vehicle and the following vehicle (i.e., the second collision time) can be calculated based on the speed and acceleration of the following vehicle, the current vehicle's speed and acceleration, and the distance between the following vehicle and the following vehicle.

[0105] The second step is to obtain the airbag inflation and deployment times.

[0106] In this embodiment, the inflation time and ejection time can be obtained directly from the parameters of the airbag.

[0107] The third step is to determine the first target vehicle distance for airbag deployment based on the first collision time, inflation time, and deployment time.

[0108] Optional, the third step includes:

[0109] Determine the first relative speed and first relative acceleration between the vehicle in front and the vehicle in front; based on the first relative speed, first relative acceleration, first collision time, inflation time and deployment time, predict the first relative distance between the vehicle in front and the vehicle in front before the airbag is deployed; calculate the difference between the distance to the vehicle in front and the first relative distance to obtain the first target distance.

[0110] Wherein, the first relative velocity is the speed difference between the speed of the vehicle in front and the speed of the vehicle itself, and the first relative acceleration is the acceleration difference between the acceleration of the vehicle in front and the acceleration of the vehicle itself.

[0111] This can be understood as calculating the collision time, subtracting the inflation time, and then subtracting the deployment time to obtain the vehicle's travel time before the airbag deploys. This allows for sufficient inflation and deployment time before a collision to ensure successful airbag deployment. Based on the vehicle's travel time before airbag deployment, as well as the first relative velocity and acceleration, the first relative distance between the vehicle and the vehicle in front before airbag deployment can be calculated. Finally, the difference between the distance to the vehicle in front and the first relative distance is calculated to obtain the first target distance, which is the distance the vehicle will travel after airbag deployment and before a collision, ensuring the airbag can fully inflate upon impact.

[0112] Step 4: Determine the second target vehicle distance for airbag deployment based on the second collision time, inflation time, and deployment time.

[0113] Specifically, the second relative speed and the second relative acceleration between the following vehicle and the vehicle itself are determined; based on the second relative speed, the second relative acceleration, the collision time, the inflation time, and the deployment time, the second relative distance between the vehicle and the following vehicle before the airbag is deployed is predicted; the difference between the distance to the following vehicle and the second relative distance is calculated to obtain the second target distance.

[0114] The second relative velocity is the speed difference between the following vehicle and the current vehicle, and the second relative acceleration is the acceleration difference between the following vehicle and the current vehicle.

[0115] In this embodiment, the second target vehicle distance can be calculated based on the calculation method for the first target vehicle distance. That is, the second relative distance between the vehicle and the following vehicle before the airbag is deployed can be calculated first. Finally, the distance that the vehicles will still travel after the airbag is deployed and the collision occurs can be calculated to ensure that the airbag can fully inflate at the time of the collision.

[0116] Step 5: Deploy the airbags when the distance to the vehicle in front decreases to the first target distance or the distance to the vehicle behind decreases to the second target distance.

[0117] In this embodiment, the airbags are deployed when the two vehicles are still at the target distance, thereby achieving the measure of deploying the airbags before a collision occurs, so as to effectively protect the safety of the occupants.

[0118] Based on the same inventive concept, embodiments of the present invention also provide a device for reducing vehicle collision damage. Figure 2 This is a structural block diagram of a device for reducing vehicle collision damage provided in an embodiment of the present invention, as shown below. Figure 2 As shown, the device 200 includes a first prediction module 201, a second prediction module 202, and a first control module 203.

[0119] The first prediction module 201 is used to predict whether there is a risk of a first collision between the vehicle and the vehicle in front in the same lane, and whether there is a risk of a second collision between the vehicle and the vehicle behind in the same lane.

[0120] The second prediction module 202 is used to predict the first collision acceleration of the vehicle when the first collision occurs and the second collision occurs if there is a risk of a first collision and a risk of a second collision.

[0121] The first control module 203 is used to control the vehicle to deploy the airbags and tighten the seat belts before a collision occurs if the first collision acceleration or the second collision acceleration is greater than the first acceleration threshold.

[0122] Optionally, the first prediction module 201 is also used for:

[0123] Get the speed of this vehicle, the speed of the vehicle in front, and the speed of the vehicle behind, as well as the distance between this vehicle and the vehicle in front of it, and the distance between this vehicle and the vehicle behind it.

[0124] Based on the speed of the vehicle in front, the distance to the vehicle in front, the speed of the vehicle behind, the distance to the vehicle behind, and the speed of your own vehicle, predict whether there is a risk of a first collision with the vehicle in front, and whether there is a risk of a second collision with the vehicle behind.

[0125] Optionally, the device 200 also includes a detection module for:

[0126] The vehicle's driving conditions must be checked, including at least highway and urban road conditions.

[0127] If the vehicle is traveling on a highway, determine whether the vehicle speed exceeds the speed threshold.

[0128] If the vehicle speed exceeds the speed threshold, then the steps of predicting whether there is a risk of a first collision between the vehicle and the vehicle in front in the same lane, and whether there is a risk of a second collision between the vehicle and the vehicle behind in the same lane are executed.

[0129] Optionally, the device 200 further includes a second control module for:

[0130] If there is a risk of a first collision but no risk of a second collision, reduce the vehicle speed to the first speed range and issue the first warning message.

[0131] If there is no risk of a first collision but there is a risk of a second collision, the vehicle speed will be increased to the second speed range, and a second warning message will be issued.

[0132] Optionally, the first control module 203 includes:

[0133] The prediction unit is used to predict the time of the first collision when the first collision occurs and the time of the second collision when the second collision occurs.

[0134] The acquisition unit is used to acquire the inflation time and deployment time of the airbag;

[0135] The first determining unit is used to determine the first target vehicle distance for the airbag to deploy based on the first collision time, inflation time, and deployment time.

[0136] The second determining unit is used to determine the second target vehicle distance for the airbag to deploy based on the second collision time, inflation time, and deployment time.

[0137] The detonation unit is used to detonate the airbag when the distance to the vehicle in front decreases to the first target distance or the distance to the vehicle behind decreases to the second target distance.

[0138] Optionally, the first determining unit is also used for:

[0139] Determine the first relative velocity and first relative acceleration between the vehicle in front and the vehicle in front;

[0140] Based on the first relative velocity, first relative acceleration, first collision time, inflation time and deployment time, predict the first relative distance between the vehicle and the vehicle in front before the airbag is deployed;

[0141] The first target distance is obtained by calculating the difference between the distance to the vehicle in front and the first relative distance.

[0142] Optionally, the device 200 also includes a third control module for:

[0143] If the first collision acceleration and the second collision acceleration are not greater than the set first acceleration threshold, then control the vehicle to tighten the seat belt, and determine whether the first collision acceleration and the second collision acceleration are greater than the second acceleration threshold. If the second acceleration threshold is less than the first acceleration threshold, the vehicle will tighten the seat belt.

[0144] If the first or second collision acceleration exceeds the second acceleration threshold, the driver will be alerted to whether the airbags need to be deployed.

[0145] If the driver needs to deploy the airbags, the vehicle will be controlled to deploy the airbags before a collision occurs.

[0146] It is understood that the device provided in the above embodiments is only illustrated by the division of the above functional modules. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0147] This invention also provides an electronic device that may include a processor and a memory, wherein the processor and the memory may be interconnected via a bus or other means.

[0148] The processor may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application.

[0149] Memory may include mass storage for data or instructions. For example, and not limitingly, memory may include hard disk drives (HDDs), floppy disk drives, flash memory, optical disks, magneto-optical disks, magnetic tape, or Universal Serial Bus (USB) drives, or combinations of two or more of these. Where appropriate, memory may include removable or non-removable (or fixed) media. Where appropriate, memory may be internal or external to an electronic device. In a particular embodiment, memory may be non-volatile solid-state memory.

[0150] In one instance, the memory may be read-only memory (ROM). In one instance, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM), or flash memory, or a combination of two or more of these.

[0151] The processor reads and executes computer program instructions stored in memory to implement any of the methods for reducing vehicle collision damage described in the above embodiments.

[0152] In one example, the electronic device may further include a communication interface and a bus. The processor, memory, and communication interface are connected via the bus to communicate with each other. The communication interface is primarily used to enable communication between the various modules, devices, units, and / or equipment in the embodiments of this application. Where appropriate, the bus may include one or more buses.

[0153] Furthermore, in conjunction with the methods for reducing vehicle collision damage described in the above embodiments, this invention can be implemented using a computer-readable storage medium. This computer-readable storage medium stores computer program instructions; when executed by a processor, these computer program instructions implement any of the methods for reducing vehicle collision damage described in the above embodiments.

[0154] The technical solutions described in the embodiments of this application above have at least the following technical effects or advantages:

[0155] This invention provides a method, apparatus, device, and medium for reducing vehicle collision injuries. It predicts the risk of a first collision with a vehicle in the same lane and the risk of a second collision with a vehicle behind it in the same lane. If both risks exist, it indicates the collision may be unavoidable. In cases where a collision is unavoidable, the method predicts the vehicle's initial collision acceleration and the second collision acceleration, using these accelerations to determine the collision intensity. If either the initial or second collision acceleration exceeds a set acceleration threshold, indicating a potentially severe collision, the method controls the vehicle to deploy airbags and tighten seatbelts before the collision to protect occupants. This method, when detecting a potential collision with both the vehicle in front and behind, and predicting a high collision intensity, deploys airbags before the collision, ensuring successful deployment and effective protection, thus reducing injury to occupants.

[0156] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0157] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the invention, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof. However, this method of disclosure should not be construed as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the following claims, inventive aspects lie in fewer than all features of a single foregoing disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into this detailed description, wherein each claim itself is a separate embodiment of the invention.

[0158] It should be noted that the above embodiments are illustrative of the invention and not restrictive, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

Claims

1. A method for reducing vehicle collision injuries, characterized in that, The method includes: The system predicts whether there is a risk of a first collision between the vehicle and the vehicle in front in the same lane, and whether there is a risk of a second collision between the vehicle and the vehicle behind in the same lane. The risk of the first collision is defined as the sum of the distance traveled by the vehicle in front after emergency braking and the current distance to the vehicle in front, which is less than the sum of the distance traveled by the vehicle within the driver's reaction time and the distance traveled after emergency braking following the reaction time. The risk of the second collision is defined as the sum of the distance traveled by the vehicle in front after emergency braking and the current distance to the vehicle behind, which is less than the sum of the distance traveled by the vehicle behind during the driver's reaction time and the distance traveled after emergency braking following the reaction time. The distance to the vehicle in front is the distance between the vehicle in front, and the distance to the vehicle behind is the distance between the vehicle in front and the vehicle behind. If there is a risk of the first collision and a risk of the second collision, then predict the first collision acceleration of the vehicle when the first collision occurs, and the second collision acceleration of the vehicle when the second collision occurs; If the first collision acceleration or the second collision acceleration is greater than the first acceleration threshold, the vehicle is controlled to deploy the airbags and tighten the seat belts before a collision occurs. The method further includes: If there is a risk of the first collision and no risk of the second collision, the vehicle speed is reduced to a first speed range and a first alarm message is issued. If there is no risk of the first collision, but there is a risk of the second collision, the vehicle speed is increased to a second speed range, and a second alarm message is issued.

2. The method for reducing vehicle collision damage according to claim 1, characterized in that, The prediction of whether there is a risk of a first collision between the vehicle and the vehicle in front in the same lane, and the prediction of whether there is a risk of a second collision between the vehicle and the vehicle behind in the same lane, includes: Get the speed of this vehicle, the speed of the vehicle in front, and the speed of the vehicle behind, as well as the distance between this vehicle and the vehicle in front of it, and the distance between this vehicle and the vehicle behind it. Based on the speed of the preceding vehicle, the distance to the preceding vehicle, the speed of the following vehicle, the distance to the following vehicle, and the speed of the current vehicle, predict whether there is a risk of the current vehicle colliding with the preceding vehicle in the first collision, and whether there is a risk of the current vehicle colliding with the following vehicle in the second collision.

3. The method for reducing vehicle collision damage according to claim 1, characterized in that, Before predicting whether there is a risk of a first collision between the vehicle and the vehicle in front in the same lane, and whether there is a risk of a second collision between the vehicle and the vehicle behind in the same lane, the method further includes: The vehicle's driving conditions are detected, including at least highway conditions and urban road conditions; If the driving conditions of the vehicle are highway conditions, then determine whether the vehicle speed is greater than the speed threshold. If the vehicle speed is greater than the speed threshold, then the steps of predicting whether there is a risk of a first collision between the vehicle and the vehicle in front in the same lane, and whether there is a risk of a second collision between the vehicle and the vehicle behind in the same lane are performed.

4. The method for reducing vehicle collision damage according to claim 1, characterized in that, The method of controlling the vehicle to deploy the airbags before a collision includes: Predict the time of the first collision when the first collision occurs, and the time of the second collision when the second collision occurs; Obtain the inflation time and deployment time of the airbag; Based on the first collision time, the inflation time, and the ejection time, determine the first target vehicle distance for the airbag to deploy; The second target vehicle distance for detonating the airbag is determined based on the second collision time, the inflation time, and the ejection time. The airbag is deployed when the distance to the vehicle in front decreases to the first target distance or the distance to the vehicle behind decreases to the second target distance.

5. The method for reducing vehicle collision damage according to claim 4, characterized in that, Determining the first target vehicle distance for deploying the airbag based on the first collision time, the inflation time, and the deployment time includes: Determine the first relative velocity and the first relative acceleration between the preceding vehicle and the vehicle itself; Based on the first relative velocity, the first relative acceleration, the first collision time, the inflation time, and the ejection time, predict the first relative distance between the vehicle and the vehicle in front before the airbag is deployed; The difference between the distance to the preceding vehicle and the first relative distance is calculated to obtain the first target distance.

6. The method for reducing vehicle collision damage according to claim 1, characterized in that, The method further includes: If the first collision acceleration and the second collision acceleration are not greater than the set first acceleration threshold, then the vehicle is controlled to tighten the seat belt, and it is determined whether the first collision acceleration and the second collision acceleration are greater than the second acceleration threshold, wherein the second acceleration threshold is less than the first acceleration threshold; If the first collision acceleration or the second collision acceleration is greater than the second acceleration threshold, the driver is alerted to whether the airbag needs to be deployed. If the driver needs to deploy the airbag, the vehicle is controlled to deploy the airbag before a collision occurs.

7. A device for reducing vehicle collision injuries, characterized in that, The device includes: The first prediction module is used to predict whether there is a risk of a first collision between the vehicle and the vehicle in front in the same lane, and whether there is a risk of a second collision between the vehicle and the vehicle behind in the same lane. The risk of the first collision is that the sum of the distance traveled by the vehicle in front after emergency braking and the current distance to the vehicle in front is less than the sum of the distance traveled by the vehicle within the driver's reaction time and the distance traveled after emergency braking following the reaction time. The risk of the second collision is that the sum of the distance traveled by the vehicle in front after emergency braking and the current distance to the vehicle behind is less than the sum of the distance traveled by the vehicle behind during the driver's reaction time and the distance traveled after emergency braking following the reaction time. The distance to the vehicle in front is the distance between the vehicle and the vehicle in front, and the distance to the vehicle behind is the distance between the vehicle and the vehicle behind. The second prediction module is used to predict the first collision acceleration of the vehicle when the first collision occurs and the second collision occurs if there is a risk of the first collision and a risk of the second collision. The first control module is used to control the vehicle to deploy the airbags and tighten the seat belts before a collision occurs if the first collision acceleration or the second collision acceleration is greater than the first acceleration threshold. The device further includes a second control module, used for: If there is a risk of the first collision and no risk of the second collision, the vehicle speed is reduced to a first speed range and a first alarm message is issued. If there is no risk of the first collision, but there is a risk of the second collision, the vehicle speed is increased to a second speed range, and a second alarm message is issued.

8. An electronic device, characterized in that, include: A memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, the processor executing the computer instructions to perform the method of any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to perform the method of any one of claims 1-6.

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