Control method, system, storage medium and vehicle for reducing vehicle impact deformation

Abstract

The control method, system, storage medium and vehicle provided by the embodiment of the application can reduce the deformation of the vehicle in the collision. The control method comprises the following steps: obtaining vehicle parameter information of a target vehicle and a vehicle distance between the target vehicle and the vehicle; screening vehicle model information corresponding to the vehicle parameter information in a database, and calculating a height difference between a longitudinal beam height of the vehicle corresponding to the vehicle model information and a longitudinal beam height of the vehicle; if the height difference is greater than a height threshold value and the vehicle distance is less than or equal to a first vehicle distance threshold value, the suspension of the vehicle is lifted or the chassis of the vehicle is lowered, so that the height difference is less than or equal to the height threshold value, and thus the longitudinal beam of the vehicle and the longitudinal beam of the target vehicle can be at approximately the same height. When the two vehicles collide, the collision force generated by the collision of the vehicles can be mainly transmitted along the longitudinal beam, thereby reducing the deformation of the vehicle and reducing the risk of rollover of the following vehicle, and improving the safety performance of the vehicle.

Description

TECHNICAL FIELD

[0001] The present disclosure belongs to the technical field of vehicle control, and particularly relates to a control method and system for reducing vehicle collision deformation, a storage medium and a vehicle. BACKGROUND

[0002] At present, with the automobile becoming one of the mainstream transportation tools, the incidence of rear-end accidents of the automobile is higher and higher. In the rear-end process, the front part of the rear vehicle collides with the rear part of the front vehicle. When the vehicle models of the two vehicles are quite different, the collision deformation of the vehicle is usually large, and even the rear vehicle may roll over, which seriously endangers the safety of the people in the vehicle. SUMMARY

[0003] The control method and system for reducing vehicle collision deformation and the vehicle provided in the embodiments of the present application can improve the safety performance of the vehicle.

[0004] In a first aspect, the embodiments of the present application provide a control method for reducing vehicle collision deformation, comprising the steps of:

[0005] obtaining vehicle parameter information of a target vehicle and a vehicle distance from the target vehicle to the vehicle;

[0006] screening vehicle model information corresponding to the vehicle parameter information in a database, and calculating a height difference between a longitudinal beam height of a vehicle corresponding to the vehicle model information and a longitudinal beam height of the vehicle;

[0007] if the height difference is greater than a height threshold value and the vehicle distance is less than or equal to a first vehicle distance threshold value, controlling the suspension of the vehicle to be lifted or the chassis of the vehicle to be lowered, so that the height difference is less than or equal to the height threshold value.

[0008] In some embodiments, the database includes a plurality of data groups, the plurality of data groups correspond to a plurality of road sections one by one, and the data in a data group includes historical vehicle model information in the corresponding road section;

[0009] The step of screening the vehicle model information corresponding to the vehicle parameter information in the database includes:

[0010] obtaining road section information of a road section traveled by the target vehicle, and screening a data group corresponding to the road section traveled by the target vehicle according to the road section information;

[0011] screening the vehicle model information corresponding to the vehicle parameter information in the data group corresponding to the road section traveled by the target vehicle according to the vehicle parameter information.

[0012] In some embodiments, the step of controlling the suspension of the vehicle to be lifted or the chassis of the vehicle to be lowered so that the height difference is less than or equal to the height threshold value includes:

[0013] If the height of the vehicle corresponding to the vehicle type information is less than the height of the longitudinal beam of the host vehicle, the suspension body of the suspension of the host vehicle is controlled to lower the chassis of the host vehicle;

[0014] If the height of the vehicle corresponding to the vehicle type information is greater than the height of the longitudinal beam of the host vehicle, it is determined whether the height difference is greater than the maximum lifting height of the suspension body;

[0015] If yes, the lifting device of the suspension is controlled to be unlocked, and the chassis of the host vehicle is lifted by the lifting device; if no, the suspension body is controlled to lift the chassis of the host vehicle.

[0016] In some embodiments, before the step of controlling the lifting device of the suspension to be unlocked and lifting the chassis of the host vehicle by the lifting device, the method further comprises the step of:

[0017] determining whether the distance is greater than a second distance threshold, wherein the second distance threshold is less than the first distance threshold;

[0018] If yes, the suspension body is controlled to lift the chassis of the host vehicle;

[0019] If no, the lifting device is controlled to be unlocked, and the chassis of the host vehicle is lifted by the lifting device.

[0020] In some embodiments, after the step of controlling the suspension of the host vehicle to lift or lower the chassis of the host vehicle so that the height difference is less than or equal to the height threshold, the method further comprises the step of:

[0021] If the host vehicle does not collide with the target vehicle, it is determined whether the distance is greater than the first distance threshold;

[0022] If yes, the suspension of the host vehicle is controlled to be reset or the host vehicle is controlled to stop;

[0023] If no, the host vehicle is controlled to travel at a reduced speed until the distance is greater than the first distance threshold.

[0024] In some embodiments, the control method further comprises the step of:

[0025] obtaining real-time road condition information of a front road section on which the host vehicle travels, and determining whether there is an obstacle in the front road section according to the real-time road condition information;

[0026] If yes, the height of the obstacle is obtained, and if the height of the obstacle is greater than or equal to the height of the chassis of the host vehicle, the suspension of the host vehicle is controlled to lift the chassis of the host vehicle;

[0027] If no, the host vehicle is controlled to travel normally.

[0028] In some embodiments, the vehicle parameter information includes at least one of a ground clearance of a rear end of the vehicle, a width of the rear end of the vehicle, a ground clearance of a front end of the vehicle, a width of the front end of the vehicle, and a width between two rear wheels; and / or, the vehicle parameter information includes at least one of a ground clearance of a rear end of the vehicle, a width of the rear end of the vehicle, a ground clearance of a front end of the vehicle, a width of the front end of the vehicle, and a width between two front wheels.

[0029] In a second aspect, the embodiments of the present application further provide a control system for reducing vehicle deformation in a collision, comprising a detection unit, a suspension, and a controller, the controller comprising a memory and a processor, the memory storing computer program instructions executable on the processor, and the computer program instructions, when executed by the processor, implement the steps of the control method for reducing vehicle deformation in a collision according to any one of the above.

[0030] In a third aspect, the embodiments of the present application further provide a computer readable storage medium, the computer readable storage medium storing computer program instructions, and the computer program instructions, when executed by a processor, implement the control method for reducing vehicle deformation in a collision according to any one of the above.

[0031] In a fourth aspect, the embodiments of the present application further provide a vehicle, comprising the control system described above.

[0032] The embodiments of the present application provide a control method, system, storage medium, and vehicle for reducing vehicle deformation in a collision. The control method comprises the steps of: obtaining vehicle parameter information of a target vehicle and a vehicle distance between the target vehicle and the host vehicle; screening vehicle model information corresponding to the vehicle parameter information in a database, and calculating a height difference between a longitudinal beam height of the vehicle corresponding to the vehicle model information and a longitudinal beam height of the host vehicle; if the height difference is greater than a height threshold value and the vehicle distance is less than or equal to a first vehicle distance threshold value, controlling the suspension of the host vehicle to lift or lower the chassis of the host vehicle, so that the height difference is less than or equal to the height threshold value. Therefore, the longitudinal beam of the host vehicle and the longitudinal beam of the target vehicle can be at approximately the same height, and when the two vehicles collide, the collision force generated by the vehicle collision can be mainly transmitted along the longitudinal beam, thereby reducing the deformation of the vehicle and reducing the risk of rollover of the rear vehicle, and improving the safety performance of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 FIG. 1 is a flowchart of a control method for reducing vehicle deformation in a collision according to some embodiments of the present application;

[0034] Figure 2 FIG. 2 is another flowchart of a control method for reducing vehicle deformation in a collision according to some embodiments of the present application;

[0035] Figure 3 FIG. 3 is yet another flowchart of a control method for reducing vehicle deformation in a collision according to some embodiments of the present application;

[0036] Figure 4 is a structural schematic diagram of a suspension provided by some embodiments of the present application;

[0037] Figure 5 is still another flow schematic diagram of a control method for reducing vehicle impact deformation provided by some embodiments of the present application;

[0038] Figure 6 is still another structural schematic diagram of a control method for reducing vehicle impact deformation provided by some embodiments of the present application.

[0039] BRIEF DESCRIPTION OF DRAWINGS

[0040] Suspension 10; suspension mounting plate 11; suspension body 12; shock absorber 121; shock absorbing spring 122; spring mounting plate 123; height increasing device 13. DETAILED DESCRIPTION

[0041] In order to enable a more clear understanding of the above-mentioned purposes, features and advantages of the present disclosure, the schemes of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0042] In the following description, a lot of specific details are set forth in order to give a thorough understanding of the present disclosure, but the present disclosure can also be implemented in other manners different from those described herein; obviously, the embodiments described in the specification are only some embodiments of the present disclosure, not all embodiments.

[0043] With the automobile becoming one of the mainstream transportation tools, the incidence of rear-end accidents of the automobile is higher and higher. In the rear-end process, the front part of the rear vehicle impacts the rear part of the front vehicle. When the vehicle models of the two vehicles are quite different, for example, when a sport utility vehicle, an off-road vehicle or the like with a high chassis rear-ends a small car with a low chassis, the vehicle with the high chassis may straddle the small car, or even a dangerous situation such as vehicle rollover occurs, or when a vehicle rear-ends a truck, a van or a heavy truck with an ultra-high chassis, the vehicle may drill into the bottom of the vehicle with the ultra-high chassis, so that the tail of the vehicle with the ultra-high chassis directly impacts the A-pillar or windshield area of the rear vehicle, causing serious deformation of the rear vehicle, thereby endangering the personal safety of the people in the vehicle.

[0044] At present, in order to solve the above technical problems, the present application provides a control method, system, storage medium and vehicle for reducing vehicle impact deformation. First, the control method for reducing vehicle impact deformation will be introduced.

[0045] Figure 1 is a flow schematic diagram of a control method for reducing vehicle impact deformation provided by some embodiments of the present application; is a flow schematic diagram of a control method for reducing vehicle impact deformation provided by some embodiments of the present application;

[0046] like Figure 1 As shown, in a first aspect, embodiments of this application provide a control method for reducing vehicle impact deformation, comprising the steps of:

[0047] S1, obtain the vehicle parameter information of the target vehicle and the distance between the target vehicle and the current vehicle.

[0048] The vehicle parameter information can include various external contour parameters of the target vehicle. A detection unit can be installed on the vehicle to detect the target vehicle's parameter information and the distance between the target vehicle and the vehicle, and then send this information to the controller. It should be noted that the target vehicle can be a vehicle in front of the vehicle in the direction of travel, or a vehicle behind the vehicle. The control method in this embodiment can be applied to reduce collision deformation when the vehicle rear-ends the vehicle in front, or to reduce collision deformation when a vehicle rear-ends the vehicle; no limitation is made here.

[0049] S2, filter the vehicle model information corresponding to the vehicle parameter information in the database, and calculate the height difference between the longitudinal beam height of the vehicle corresponding to the model information and the longitudinal beam height of this vehicle.

[0050] The database may include, but is not limited to, data from a traffic accident collision scenario database. Specifically, the data in the database may include at least the front longitudinal beam height of the vehicle, the rear longitudinal beam height of the vehicle, vehicle model information corresponding to each vehicle model, vehicle parameter information of the vehicle corresponding to each vehicle model, and the front and / or rear longitudinal beam heights of the vehicles corresponding to each vehicle model. Optionally, the database may also include outline images of vehicles corresponding to each vehicle model. The controller filters the vehicle model information corresponding to the vehicle parameter information from the database, retrieves the longitudinal beam height of the vehicle corresponding to the vehicle model information, and calculates the height difference between the longitudinal beam height of the vehicle corresponding to the vehicle model information and the longitudinal beam height of the vehicle itself.

[0051] It is understandable that in the step of calculating the height difference between the longitudinal beam height of the vehicle corresponding to the vehicle model information and the longitudinal beam height of the current vehicle, when the target vehicle is the vehicle in front of the current vehicle in the direction of travel, the longitudinal beam height of the vehicle corresponding to the vehicle model information can be the rear longitudinal beam height of the target vehicle, while the longitudinal beam height of the current vehicle can be the front longitudinal beam height of the current vehicle; when the target vehicle is the vehicle behind the current vehicle, the longitudinal beam height of the vehicle corresponding to the vehicle model information can be the front longitudinal beam height of the target vehicle, while the longitudinal beam height of the current vehicle can be the rear longitudinal beam height of the current vehicle.

[0052] S3, if the height difference is greater than the height threshold and the distance between vehicles is less than or equal to the first distance threshold, then control the suspension 10 of this vehicle to raise or lower the chassis of this vehicle so that the height difference is less than or equal to the height threshold.

[0053] The first distance threshold refers to a minimum distance value that is pre-set to enable the host vehicle and the target vehicle to travel safely without collision. It can be understood that when the distance between the host vehicle and the target vehicle is greater than the first distance threshold, the host vehicle and the target vehicle are less likely to collide, and thus it is not necessary to adjust the ride height of the host vehicle. When the distance between the host vehicle and the target vehicle is less than or equal to the first distance threshold, the host vehicle and the target vehicle are likely to collide, and thus the suspension 10 of the host vehicle can be controlled to lift or lower the ride height of the host vehicle to reduce the height difference value to be less than or equal to the height threshold.

[0054] The height threshold refers to a maximum value that is pre-set to enable the projection of the longitudinal beam of the target vehicle along the length direction of the host vehicle to at least partially overlap with the projection of the longitudinal beam of the host vehicle along the length direction of the host vehicle. When the height difference value is less than or equal to the height threshold, the projection of the longitudinal beam of the target vehicle along the length direction of the host vehicle at least partially overlaps with the projection of the longitudinal beam of the host vehicle along the length direction of the host vehicle, and thus if the host vehicle and the target vehicle collide, the collision force generated by the collision can be transmitted along the longitudinal beams of the two vehicles, and the deformation of the vehicles is small, and thus it is not necessary to adjust the ride height of the host vehicle. When the height difference value is greater than the height threshold, the projection of the longitudinal beam of the target vehicle along the length direction of the host vehicle does not overlap with the projection of the longitudinal beam of the host vehicle along the length direction of the host vehicle, and thus if the host vehicle and the target vehicle collide, the collision force generated by the collision is difficult to be transmitted along the longitudinal beams, and the deformation of the two vehicles is large. Therefore, by controlling the suspension 10 of the host vehicle to lift or lower the ride height of the host vehicle, the height difference value can be reduced to be less than or equal to the height threshold. It can be understood that when the height difference value is 0, the projection of the longitudinal beam of the target vehicle along the length direction of the host vehicle completely overlaps with the projection of the longitudinal beam of the host vehicle along the length direction of the host vehicle, and thus if the host vehicle and the target vehicle collide, the collision force generated by the collision can be transmitted along the longitudinal beams of the two vehicles to the maximum extent, thereby minimizing the deformation of the vehicles.

[0055] In the present embodiment, when the height difference value is greater than the height threshold and the distance is less than or equal to the first distance threshold, the height difference value can be reduced to be less than or equal to the height threshold by controlling the suspension 10 of the host vehicle to lift or lower the ride height of the host vehicle. When the two vehicles collide, since the longitudinal beam of the target vehicle is substantially at the same height as the longitudinal beam of the host vehicle, the collision force generated by the collision of the vehicles can be mainly transmitted along the longitudinal beams, thereby reducing the deformation of the vehicles and reducing the risk of rollover of the rear vehicle, and improving the safety performance of the vehicles.

[0056] Figure 2 FIG. 6 is another flowchart of a control method for reducing the deformation of a vehicle in some embodiments of the present application.

[0057] As shown in FIG. 6, the control method for reducing the deformation of a vehicle in some embodiments of the present application includes the following steps. Figure 2As shown, in some embodiments, the database comprises a plurality of data groups, the plurality of data groups correspond to a plurality of road sections one by one, and the data in one data group comprises historical vehicle model information in the corresponding road section.

[0058] The number of data groups can be reasonably determined according to the number of road sections. Optionally, the plurality of road sections can include, but are not limited to, highway road sections, urban road sections, rural road sections, forestry road sections, and various road sections. It can be understood that the road section in the present embodiment refers to a type of road section. Taking a highway road section as an example, the highway road section refers to the general term of all highways, and the data in the corresponding database can include historical vehicle model information in all highways.

[0059] The step of screening the vehicle model information corresponding to the vehicle parameter information in the database comprises:

[0060] S21, obtaining road section information of a target vehicle driving road section, and screening a data group corresponding to the target vehicle driving road section according to the road section information.

[0061] The road section information can include at least one of various information capable of identifying the type of road section, such as road section name, grid index code, road section index code, road section width, and road section picture. The road section information can be detected by a detection unit. When the vehicle enters a road section, the detection unit detects the road section information of the corresponding road section and sends the road section information to the controller. The controller receives the road section information and identifies the type of the road section corresponding to the road section information, and screens the data group corresponding to the road section.

[0062] S22, screening the vehicle model information corresponding to the vehicle parameter information in the data group corresponding to the target vehicle driving road section according to the vehicle parameter information.

[0063] In the present embodiment, by setting the database to comprise a plurality of data groups, the plurality of data groups correspond to a plurality of road sections one by one, and the data in one data group comprises historical vehicle model information in the corresponding road section. Therefore, in the step of screening the vehicle model information corresponding to the vehicle parameter information in the database, the road section information of the target vehicle driving road section is obtained first, and then the data group corresponding to the target vehicle driving road section is screened according to the road section information, so that the corresponding vehicle model information is screened in the data group corresponding to the target vehicle driving road section according to the vehicle parameter information, without the need to screen the data in the entire database, which can improve the data screening efficiency and further improve the reaction speed of the controller.

[0064] Further, after step S22, the method further comprises the step of: S23, if the vehicle model information corresponding to the vehicle parameter information is not screened in the data group corresponding to the target vehicle driving road section, continue to screen in the remaining data groups until the vehicle model information corresponding to the vehicle parameter information is screened.

[0065] As another example, in the database, the data in one data group can also include the historical vehicle type information of two or more road segments, for example, the historical vehicle type information of a road segment with a traffic flow greater than a traffic flow threshold can be stored in one data group, and the historical vehicle type information of two or more road segments with a traffic flow less than the traffic flow threshold can be stored in another data group. The specific data group division rule can be reasonably set according to the actual situation, and the embodiment is not limited specifically.

[0066] Figure 3 is another flowchart of the control method for reducing vehicle impact deformation provided by some embodiments of the present application.

[0067] As shown in Figure 3 , in some embodiments, the step of controlling the suspension 10 of the host vehicle to lift or lower the chassis of the host vehicle so that the height difference value is less than or equal to a height threshold value includes:

[0068] S31, if the height of the longitudinal beam of the vehicle corresponding to the vehicle type information is less than the height of the longitudinal beam of the host vehicle, the suspension body 12 of the suspension 10 of the host vehicle is controlled to lower the chassis of the host vehicle.

[0069] It can be understood that the height value of the chassis lowered by the suspension body 12 can be infinitely close to the height difference value, and preferably, the height value of the chassis lowered by the suspension body 12 is equal to the height difference value, so that the projection of the longitudinal beam of the target vehicle along the length direction of the host vehicle and the projection of the longitudinal beam of the host vehicle along the length direction of the host vehicle completely overlap.

[0070] S32, if the height of the longitudinal beam of the vehicle corresponding to the vehicle type information is greater than the height of the longitudinal beam of the host vehicle, it is determined whether the height difference value is greater than the maximum lifting height of the suspension body 12.

[0071] If the height of the longitudinal beam of the vehicle corresponding to the vehicle type information is greater than the height of the longitudinal beam of the host vehicle, i.e. the chassis of the host vehicle needs to be lifted, so that the projection of the longitudinal beam of the target vehicle along the length direction of the host vehicle and the projection of the longitudinal beam of the host vehicle along the length direction of the host vehicle at least partially overlap.

[0072] S33, if yes, the lifting device 13 of the suspension 10 is controlled to be unlocked, and the chassis of the host vehicle is lifted through the lifting device 13.

[0073] S34, if no, the suspension body 12 is controlled to lift the chassis of the host vehicle.

[0074] Understandably, when it is necessary to raise the chassis of this vehicle, it can be first determined whether the height difference is greater than the maximum lifting height of the suspension body 12. If the height difference is less than the maximum lifting height, the chassis of this vehicle can be raised by the suspension body 12 to make the height difference less than or equal to the height threshold. If the height difference is greater than the maximum lifting height of the suspension body 12, the height difference may still be greater than the height threshold after the chassis is raised to the maximum height. Therefore, when the height difference is greater than the maximum lifting height of the suspension body 12, the lifting device 13 of the suspension 10 is unlocked to raise the chassis of this vehicle by the lifting device 13, so that the height difference after the chassis is raised is less than the height threshold.

[0075] In this embodiment, by setting the height-raising device 13 to raise the vehicle chassis when the height difference is greater than the maximum lifting height of the suspension body 12, the collision deformation during vehicle collision can be further reduced, thereby improving the vehicle's safety performance.

[0076] Figure 4 This is a schematic diagram of the suspension structure provided in some embodiments of this application.

[0077] like Figure 4 As shown, optionally, the suspension 10 may include a suspension mounting plate 11, a suspension body 12, and a height-increasing device 13. The height-increasing device 13 has a lifting height greater than the maximum lifting height of the suspension body 12, and can be used to raise the vehicle chassis when the height difference is greater than the maximum lifting height of the suspension body 12. The suspension body 12 is mounted to the vehicle chassis via the suspension mounting plate 11. The suspension body 12 is located on the side of the chassis closest to the ground. The suspension body 12 is used to lower the vehicle chassis or raise the vehicle chassis when the height difference is less than or equal to the maximum lifting height. The suspension body 12 may include a shock absorber 121, a shock absorber spring 122, and a spring mounting plate 123. The shock absorber spring 122 is mounted on the outer periphery of the shock absorber 121 via the spring mounting plate 123. The height-increasing device 13 may be disposed on the spring mounting plate 123 and located between the spring mounting plate 123 and the suspension mounting plate 11. Optionally, the lifting height of the height-increasing device 13 can be reasonably set according to the rear height of the vehicle corresponding to each vehicle model information in the database, so that it can be adapted to the rear height of most trucks, vans and other oversized vehicles.

[0078] Optionally, the height increasing device 13 can comprise a control mechanism and a lifting mechanism, the control mechanism and the lifting mechanism can be respectively arranged on the spring mounting plate 123 and between the spring mounting plate 123 and the suspension mounting plate 11, the control mechanism can be arranged on one side of the lifting mechanism along the length direction or the width direction of the chassis and used to control the lifting mechanism to extend or contract along the thickness direction of the chassis. When the height difference value is greater than the maximum lifting height of the suspension body 12, the controller can send an unlocking instruction to the control mechanism, so that the control mechanism controls the lifting mechanism to be unlocked and controls the lifting mechanism to extend along the thickness direction of the chassis towards the suspension mounting plate 11, so as to lift the suspension mounting plate 11, and then lift the chassis through the suspension mounting plate 11.

[0079] Further, the control mechanism can comprise a control switch and a locking component, the control switch is used to control the locking component to move away from the lifting mechanism, and the locking component abuts against the end of the lifting mechanism along the thickness direction of the chassis towards the suspension mounting plate 11, so as to limit the lifting mechanism through the locking component, and avoid the lifting mechanism from being accidentally unlocked. When the height difference value is greater than the maximum lifting height of the suspension body 12, the control switch can control the locking component to move away from the lifting mechanism, so as to remove the abutment between the locking component and the lifting mechanism, unlock the lifting mechanism, and make the lifting mechanism extend along the thickness direction of the chassis towards the suspension mounting plate 11.

[0080] Further, the locking component can comprise a guide shaft, a first metal plate, a second metal plate and an abutting piece, the guide shaft is fixedly arranged on the spring mounting plate 123 and extends along the direction close to or away from the lifting mechanism, the first metal plate is fixedly connected to the guide shaft, the second metal plate is arranged on the side of the first metal plate close to the lifting mechanism and is slidably arranged relative to the guide shaft, the abutting piece is fixedly connected to the side of the second metal plate close to the lifting mechanism and abuts against the side of the lifting mechanism along the thickness direction of the chassis towards the suspension mounting plate 11, and the control switch is connected to the first metal plate, so that the control switch can be used to electrify the first metal plate to make the first metal plate have magnetism. When the height difference value is greater than the maximum lifting height of the suspension body 12, the controller controls the control switch to be turned on, the first metal plate is electrified and has magnetism, at this time, the first metal plate with magnetism attracts the second metal plate, so that the second metal plate drives the abutting piece to move away from the lifting mechanism, thereby unlocking the lifting mechanism and making the lifting mechanism extend towards the suspension mounting plate 11.

[0081] Optionally, the lifting mechanism can include a lifting spring and a first sleeve and a second sleeve which are sleeved with each other, the first sleeve is connected to the spring mounting plate 123, the lifting spring is arranged in the first sleeve and the second sleeve in a compressed manner along the thickness direction of the chassis, one end of the lifting spring is connected to the bottom wall of the first sleeve, and the other end of the lifting spring is connected to the bottom wall of the second sleeve. When the height difference value is greater than the maximum lifting height of the suspension body 12, the control mechanism unlocks the lifting mechanism, and the lifting spring rebounds to make the second sleeve abut against the suspension mounting plate 11 and lift up the suspension mounting plate 11.

[0082] Figure 5 is another flowchart of the control method for reducing vehicle collision deformation provided by some embodiments of the present application.

[0083] As shown in some embodiments, before the step of controlling the lifting device 13 of the suspension 10 to unlock and lifting up the chassis of the vehicle through the lifting device 13, the method further includes the steps of: Figure 5

[0084] S331, determining whether the vehicle distance is greater than a second vehicle distance threshold, wherein the second vehicle distance threshold is less than the first vehicle distance threshold.

[0085] The second vehicle distance threshold can be a dangerous vehicle distance value at which the vehicle and the target vehicle will collide, which is set in advance. The second vehicle distance threshold is less than the first vehicle distance threshold, for example, when the first vehicle distance threshold is 50 m, the second vehicle distance threshold can be 10 m.

[0086] S332, if yes, controlling the suspension body 12 to lift up the chassis of the vehicle.

[0087] S333, if no, controlling the lifting device 13 to unlock and lifting up the chassis of the vehicle through the lifting device 13.

[0088] It can be understood that, since the lifting height of the lifting device 13 is greater than the maximum lifting height of the suspension body 12, when the lifting mechanism lifts up the suspension mounting plate 11, the connection between the suspension body 12 and the suspension mounting plate 11 is broken. When the vehicle distance between the vehicle and the target vehicle is greater than the second vehicle distance threshold, since the vehicle and the target vehicle do not necessarily collide, at this time, the suspension body 12 is controlled to lift up the chassis of the vehicle, without the need to break the connection between the suspension body 12 and the suspension mounting plate 11 too early. When the vehicle distance between the vehicle and the target vehicle is less than or equal to the second vehicle distance threshold, the vehicle and the target vehicle will collide, at this time, the lifting device 13 can be controlled to unlock and lift up the chassis of the vehicle through the lifting device 13, so that the height difference value is less than or equal to the height threshold, thereby reducing the collision deformation.

[0089] ​In this embodiment, before the lifting device 13 of the suspension 10 is unlocked by control, it is judged whether the vehicle distance between the vehicle and the target vehicle is greater than the second vehicle distance threshold. When the vehicle distance is greater than the second vehicle distance threshold, the vehicle and the target vehicle do not necessarily collide, so the chassis can be lifted by the suspension body 12 of the vehicle, so that the connection between the suspension body 12 and the suspension mounting plate 11 is not damaged too early, and the stability of the vehicle during driving can be improved.

[0090] Figure 6 It is another structural schematic diagram of the control method for reducing vehicle impact deformation provided by some embodiments of the application.

[0091] As Figure 6 shown, in some embodiments, after the step of controlling the suspension 10 of the vehicle to lift or lower the chassis of the vehicle so that the height difference is less than or equal to the height threshold, the control method further comprises the steps of:

[0092] S4, if the vehicle and the target vehicle do not collide, it is judged whether the vehicle distance is greater than the first vehicle distance threshold.

[0093] Whether the vehicle and the target vehicle collide can be judged according to whether the airbag controller in the vehicle sends a collision signal. When the controller obtains the collision signal from the airbag controller, it indicates that the vehicle and the target vehicle have collided.

[0094] S5, if yes, control the suspension 10 of the vehicle to reset or control the vehicle to stop.

[0095] S6, if no, control the vehicle to drive at a reduced speed until the vehicle distance is greater than the first vehicle distance threshold.

[0096] It can be understood that when the vehicle and the target vehicle do not collide, and the vehicle distance between the vehicle and the target vehicle is greater than the first vehicle distance threshold, if the vehicle previously lifts or lowers the chassis by the suspension body 12, the suspension body 12 of the vehicle is controlled to reset so as to facilitate normal driving of the vehicle; if the vehicle previously lifts the chassis by the lifting device 13, since the connection between the suspension body 12 and the suspension mounting plate 11 is damaged after the lifting device 13 lifts the chassis, the vehicle is controlled to stop to wait for rescue, thereby ensuring the safety of the people in the vehicle. When the vehicle and the target vehicle do not collide, and the vehicle distance between the vehicle and the target vehicle is less than or equal to the first vehicle distance threshold, the vehicle is controlled to drive at a reduced speed until the vehicle distance is greater than the first vehicle distance threshold, so as to avoid the risk of collision again.

[0097] In some embodiments, the control method further comprises the steps of:

[0098] Obtaining real-time road condition information of a front road section on which the vehicle travels, and judging whether there is an obstacle in the front road section according to the real-time road condition information.

[0099] The real-time road condition information can include a road surface condition on which the vehicle travels, and can further include traffic congestion, a road section speed limit, and other information. The controller can acquire the real-time road condition information through the detection unit, and determine whether there is an obstacle in front of the vehicle based on the real-time road condition information. For example, when there is an obstacle such as a stone or a manhole cover on the front road section, the controller can timely detect the obstacle through the detection unit.

[0100] If yes, the height of the obstacle is acquired, and if the height of the obstacle is greater than or equal to the chassis height of the vehicle, the suspension 10 of the vehicle is controlled to lift the chassis of the vehicle.

[0101] If no, the vehicle is controlled to travel normally.

[0102] If the front road section has an obstacle, the controller acquires the height of the obstacle through the detection unit, and compares the height of the obstacle with the chassis height of the vehicle. If the height of the obstacle is greater than or equal to the chassis height of the vehicle, the suspension 10 of the vehicle is controlled to lift the chassis to avoid the obstacle and prevent the obstacle from damaging the chassis. If the front road section does not have an obstacle, the vehicle travels normally.

[0103] In some embodiments, if the height of the obstacle is greater than or equal to the chassis height of the vehicle, the step of controlling the suspension 10 of the vehicle to lift the chassis of the vehicle includes:

[0104] If the height of the obstacle is greater than or equal to the chassis height of the vehicle, the real-time distance from the obstacle to the vehicle is acquired, and when the real-time distance is less than or equal to a preset safety distance, the suspension 10 of the vehicle is controlled to lift the chassis.

[0105] In the present embodiment, when the real-time distance from the vehicle to the obstacle is less than or equal to the preset safety distance, the suspension 10 of the vehicle is further controlled to lift the chassis, which can avoid the vehicle lifting the chassis too early and affecting the stability of the vehicle.

[0106] Further, when the vehicle passes the obstacle, the suspension 10 of the vehicle is controlled to reset, so as to improve the stability of the vehicle.

[0107] In some embodiments, the vehicle parameter information includes at least one of a ground clearance of a rear end, a width of the rear end, a ground clearance of a front end, a width of the front end, and a width between two rear wheels; and / or the vehicle parameter information includes at least one of a ground clearance of a rear end, a width of the rear end, a ground clearance of a front end, a width of the front end, and a width between two front wheels.

[0108] It can be understood that the above widths can all be maximum widths, for example, the width of the tail end close to the ground can be the maximum width of the tail end close to the ground, the width of the tail end far from the ground can be the maximum width of the tail end far from the ground, the width between the two rear wheels can be the maximum width between the two rear wheels, the width of the head end close to the ground can be the maximum width of the head end close to the ground, the width of the head end far from the ground can be the maximum width of the head end far from the ground, and the width between the two front wheels can be the maximum width between the two front wheels. Of course, the above widths can also be minimum widths, which are not limited in the embodiment.

[0109] When the target vehicle is a vehicle in front of the host vehicle in the driving direction, the target parameter information can include at least one of the ground clearance of the tail end close to the ground, the width of the tail end close to the ground, the ground clearance of the tail end far from the ground, the width of the tail end far from the ground, and the width between the two rear wheels. When the target vehicle is a vehicle behind the host vehicle, the target parameter information can include at least one of the ground clearance of the head end close to the ground, the width of the head end close to the ground, the ground clearance of the head end far from the ground, the width of the head end far from the ground, and the width between the two front wheels.

[0110] In the embodiment, by setting that the target parameter information includes at least one of the ground clearance of the tail end close to the ground, the width of the tail end close to the ground, the ground clearance of the tail end far from the ground, the width of the tail end far from the ground, and the width between the two rear wheels; and / or, the vehicle parameter information includes at least one of the ground clearance of the head end close to the ground, the width of the head end close to the ground, the ground clearance of the head end far from the ground, the width of the head end far from the ground, and the width between the two front wheels, the reliability of the controller in screening the corresponding vehicle model information according to the target parameter information is improved.

[0111] In a second aspect, the embodiment of the present application also provides a control system for reducing vehicle impact deformation, comprising a detection unit, a suspension 10 and a controller. The controller comprises a memory and a processor, and the memory stores computer program instructions executable on the processor. The computer program instructions are executed by the processor to implement the steps of the control method for reducing vehicle impact deformation in any of the above aspects. The control system provided by the embodiment of the present application has the technical effects of the technical solutions of the control methods in any of the above embodiments. The same or corresponding structures and explanations of terms are not repeated here.

[0112] The detection unit can include, but is not limited to, radar, camera, GPS (Global Positioning System), and other devices capable of detecting the target vehicle. Optionally, the setting position of the detection unit can be reasonably set according to the actual situation, for example, the detection unit can be set on the roof of the vehicle, or the detection unit can be set at the front bumper and / or rear bumper of the vehicle, and the embodiments of the present application are not limited specifically. The controller can be arranged on the chassis of the vehicle, and optionally, the controller can be multiplexed as a body domain controller, a power domain controller, a chassis domain controller, or other types of controllers, and the embodiments of the present application are not limited specifically.

[0113] Optionally, the suspension 10 can be an air suspension, a CDC (Continuous Damping Control Suspension) suspension, or the suspension 10 of the vehicle can also be other suspensions 10 capable of realizing chassis lifting. It can be understood that the air suspension 10 refers to a suspension structure for controlling the suspension height through pneumatic elements such as air compressors and air suspension air bags. The air suspension controls the suspension height by adjusting the pressure in the air bag to achieve a balance between comfort and handling. The CDC suspension, also known as magnetic power suspension, is a suspension structure for controlling the suspension height by using electric motors and hydraulic systems. It controls the height of the suspension by using an electric motor to adjust the length of the hydraulic cylinder, thereby controlling the height of the suspension, and has high stability and handling, and can improve better comfort at high speed. Optionally, when the suspension 10 is an air suspension, the suspension body 12 can further include pneumatic elements, and when the suspension 10 is a CDC suspension, the suspension body 12 can further include an electric motor.

[0114] Specifically, the processor can include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement one or more embodiments of the present application.

[0115] The memory can include a mass storage for data or instructions. By way of example and not limitation, the memory can include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. Where appropriate, the memory can include removable or non-removable (or fixed) media. Where appropriate, the memory can be internal or external to the integrated gateway disaster recovery device. In certain embodiments, the memory is non-volatile solid-state memory.

[0116] The memory can include read-only memory (ROM), random access memory (RAM), magnetic disk storage media devices, optical storage media devices, flash memory devices, electrical, optical or other physical / tangible memory storage devices. Thus, generally, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software that, when executed (by one or more processors), is operable to perform operations described with reference to the method according to the first aspect of the present application.

[0117] The processor implements the control method of reducing vehicle impact deformation in any of the above embodiments by reading and executing the computer program instructions stored in the memory.

[0118] In a third aspect, the embodiments of the present application further provide a computer readable storage medium, and the computer readable storage medium stores computer program instructions, and the computer program instructions are executed by the processor to implement the control method of reducing vehicle impact deformation according to any of the above aspects.

[0119] In a fourth aspect, the embodiments of the present application further provide a vehicle, and the vehicle can include at least one of the following:

[0120] The control system according to the second aspect;

[0121] The computer readable storage medium according to the third aspect. Details are not described herein.

[0122] It should be noted that the present application is not limited to the specific configurations and processes described above and shown in the drawings. For the sake of brevity, detailed descriptions of well-known methods are omitted herein. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present application is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order of the steps, after understanding the spirit of the present application.

[0123] The functions noted in the description of the structural block diagrams above can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application specific integrated circuits (ASICs), appropriate firmware, plug-ins, functional cards, and the like. When implemented in software, the elements of the present application are program or code segments that are used to perform the required tasks. The program or code segments can be stored in a machine-readable medium or transmitted through a data signal carried in a carrier wave over a transmission medium or communication link. A "machine-readable medium" includes any medium that can store or transport information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, and the like. The code segments can be downloaded via computer networks such as the Internet, intranets, and the like.

[0124] It is also important to note that the examples described herein can be implemented in a variety of systems, including and not limited to a digital electronic circuit, an analog electronic circuit, a computer hardware, firmware, software, or in combinations of them. The example described herein can be implemented as one or more computer programs running on a computer or other programmable data processing devices, a computer program, a computer program product, a computer readable storage medium for storing a computer program, or as one or more computer programs running on a computer or other programmable data processing devices, programmable logic for use with a computer system, an apparatus or system.

[0125] Computer program, program, program product, or software can be stored in a memory and / or storage medium (magnetic, optical, electrical, or semiconductor storage). The memory and / or storage medium can be a machine readable medium. When the program code or instructions are executed by one or more processing devices, the processing devices perform functions or actions identified in the program code or instructions. The functions or actions can be associated with the above described example methods, apparatus, and computer program products.

[0126] It has to be noted that, in the present document, relational terms are intended only to convey a possible relationship between different entities or between an entity at one example and a different entity or entities at another example, and do not necessarily convey any actual relationship or any particular order between the entities and / or the examples, and the use of terms such as "first", "second", "third", "a", "b", "c", and the like does not imply any actual three- dimensionality or order among the entities and / or examples, but is used for nomenclature purposes only. Also, the terms "first", "second" and the like do not imply any temporal or chronological order among the entities or examples. Furthermore, the terms "comprise", "include", "contain" and / or "comprising", "including", "containing" and the like are to be construed as non- exclusive, namely as meaning "comprising" or "including", but not only. Furthermore, the terms "entity" and "element" are intended to be synonymous with each other.

Claims

1. A control method for reducing vehicle impact deformation, characterized in that, Including the following steps: Obtain the vehicle parameter information of the target vehicle and the distance between the target vehicle and the current vehicle; Filter the vehicle model information corresponding to the vehicle parameter information in the database, and calculate the height difference between the longitudinal beam height of the vehicle corresponding to the vehicle model information and the longitudinal beam height of the vehicle itself. If the height difference is greater than a height threshold and the vehicle distance is less than or equal to a first vehicle distance threshold, then control the suspension of the vehicle to raise or lower the chassis of the vehicle so that the height difference is less than or equal to the height threshold. The step of controlling the suspension of the vehicle to raise or lower the chassis of the vehicle so that the height difference is less than or equal to the height threshold includes: If the longitudinal beam height of the vehicle corresponding to the vehicle model information is less than the longitudinal beam height of this vehicle, then control the suspension body of the suspension of this vehicle to lower the chassis of this vehicle. If the longitudinal beam height of the vehicle corresponding to the vehicle model information is greater than the longitudinal beam height of the vehicle itself, and the height difference is greater than the maximum lifting height of the suspension body, and the vehicle distance is less than or equal to the second vehicle distance threshold, then the suspension lifting device is unlocked, and the chassis of the vehicle is lifted by the lifting device, wherein the second vehicle distance threshold is less than the first vehicle distance threshold.

2. The control method according to claim 1, characterized in that, The database includes multiple data groups, each of which corresponds to a variety of road segments. The data in one of the data groups includes historical vehicle information for the corresponding road segment. The step of filtering the vehicle model information corresponding to the vehicle parameter information in the database includes: Obtain road segment information of the target vehicle's travel route, and filter the data group corresponding to the target vehicle's travel route based on the road segment information; Based on the vehicle parameter information, filter the vehicle model information corresponding to the vehicle parameter information in the data group corresponding to the target vehicle's travel segment.

3. The control method according to claim 1, characterized in that, If the longitudinal beam height of the vehicle corresponding to the vehicle model information is greater than the longitudinal beam height of the vehicle itself, and the height difference is greater than the maximum lifting height of the suspension body, and the vehicle distance is less than or equal to a second vehicle distance threshold, then the step of controlling the suspension lifting device to unlock and lifting the chassis of the vehicle itself through the lifting device includes: If the longitudinal beam height of the vehicle corresponding to the vehicle model information is greater than the longitudinal beam height of this vehicle, then determine whether the height difference is greater than the maximum lifting height of the suspension body; If so, unlock the suspension booster and raise the chassis of the vehicle using the booster. If not, control the suspension body to raise the chassis of the vehicle; Before the step of unlocking the suspension booster and raising the chassis of the vehicle via the booster, the method further includes the following step: Determine whether the vehicle distance is greater than the second vehicle distance threshold; If so, control the suspension body to raise the chassis of the vehicle; If not, unlock the lifting device and raise the chassis of the vehicle using the lifting device.

4. The control method according to claim 1, characterized in that, After the step of controlling the suspension of the vehicle to raise or lower the chassis of the vehicle so that the height difference is less than or equal to the height threshold, the method further includes the step of: If the vehicle does not collide with the target vehicle, determine whether the distance between the two vehicles is greater than the first distance threshold. If so, control the suspension of the vehicle to reset or control the vehicle to stop; If not, control the vehicle to decelerate until the distance between the two vehicles is greater than the first distance threshold.

5. The control method according to any one of claims 1 to 4, characterized in that, The control method further includes the following steps: Obtain real-time traffic information of the road section ahead where the vehicle is traveling, and determine whether there are obstacles on the road section ahead based on the real-time traffic information; If so, obtain the height of the obstacle; if the height of the obstacle is greater than or equal to the chassis height of the vehicle, control the suspension of the vehicle to raise the chassis of the vehicle. If not, control the vehicle to drive normally.

6. The control method according to any one of claims 1 to 4, characterized in that, The vehicle parameter information includes at least one of the following: the ground clearance of the near end of the rear of the vehicle, the width of the near end of the rear of the vehicle, the ground clearance of the far end of the rear of the vehicle, the width of the far end of the rear of the vehicle, and the width between the two rear wheels. And / or, the vehicle parameter information includes at least one of the following: the ground clearance of the near-ground end of the vehicle front, the width of the near-ground end of the vehicle front, the ground clearance of the far-ground end of the vehicle front, the width of the far-ground end of the vehicle front, and the width between the two front wheels.

7. A control system for reducing vehicle impact deformation, characterized in that, include: Detection unit; Suspension; The controller includes a memory and a processor, the memory storing computer program instructions executable on the processor, the computer program instructions being executed by the processor to implement the steps of the control method for reducing vehicle impact deformation as described in any one of claims 1 to 6.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer program instructions, which, when executed by a processor, implement the control method for reducing vehicle impact deformation as described in any one of claims 1 to 6.

9. A vehicle, characterized in that, Includes the control system as described in claim 7.

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