Engine hood active pop-up system, control method and vehicle

Abstract

This invention discloses an active hood pop-up system, control method, and vehicle, including an engine hood, an active pop-up device, a visual sensing device, an analysis and processing device, and a control device. The active pop-up device includes multiple active pop-up mechanisms evenly distributed on the underside of the engine hood, configured to partially pop up the engine hood. The visual sensing device is configured to visually detect vehicle driving information during vehicle operation, including pedestrian and vehicle information. The analysis and processing device is configured to analyze and process the driving information to determine the impact area between the pedestrian and the engine hood. The control device is configured to activate the active pop-up mechanism corresponding to the impact area before impact. This invention pre-adjusts the active pop-up mechanism when a pedestrian-vehicle collision occurs and activates the corresponding active pop-up mechanism according to different impact areas, achieving active and intelligent protection for pedestrians.

Description

Technical Field

[0001] This invention relates to the technical field of automobiles, specifically to an active hood pop-up system, control method, and vehicle. Background Technology

[0002] Currently, some car hoods are equipped with active pop-up mechanisms to protect pedestrians. When a pedestrian collides with a vehicle, the entire hood pops up to provide cushioning. However, in actual operation, the following problems exist: the hood pop-up is passive and lacks intelligence. It only pops up after the collision, which may cause the hood to pop up synchronously with the pedestrian collision, reducing the cushioning effect and still posing a safety hazard. Furthermore, while the entire hood pops up, in some traffic accidents, the impact area between the pedestrian and the hood is small. If the entire hood pops up, although it can achieve a cushioning effect, it will increase subsequent maintenance costs and may render the vehicle undrivable after an accident. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention provides an active engine hood pop-up system that can actively control the pop-up of a corresponding area of ​​the engine hood according to different impact zones, so as to achieve active and intelligent protection for pedestrians.

[0004] According to a first aspect of the present invention, an active hood pop-up system for a vehicle includes:

[0005] An engine hood, mounted on the front of the vehicle;

[0006] An active pop-up device includes multiple active pop-up mechanisms, which are evenly distributed on the bottom side of the engine hood, and the active pop-up mechanisms are configured to push the engine hood to pop up partially;

[0007] A visual sensing device, the detection range of which covers the front of the vehicle, is configured to visually detect the vehicle's driving information during vehicle operation, the driving information including pedestrian information and vehicle information in front of the vehicle.

[0008] An analysis and processing device, connected to the visual perception device, is configured to analyze and process the driving information to determine the impact area between the pedestrian and the engine hood, and generate control commands.

[0009] A control device, connected between the analysis and processing device and the active pop-up mechanism, is configured to activate the active pop-up mechanism corresponding to the impact area before impact in response to the control command, thereby popping up the engine hood.

[0010] The active hood pop-up system according to embodiments of the present invention has at least the following beneficial effects:

[0011] This invention distributes multiple active pop-up mechanisms evenly on the bottom side of the hood. A visual perception device detects pedestrian and vehicle information in front of the vehicle during its operation. An analysis and processing device then analyzes this information to determine the impact area between the pedestrian and the hood. Before impact, a control device activates the active pop-up mechanism corresponding to the impact area, popping the hood up. This invention pre-adjusts the active pop-up mechanisms when a pedestrian-vehicle collision is imminent, activating the corresponding mechanisms based on different impact areas to control the pop-up of the corresponding area of ​​the hood. This improves the efficiency of the hood pop-up, reduces injuries to pedestrians during collisions, and achieves active and intelligent protection for pedestrians.

[0012] According to some embodiments of the present invention, the active pop-up mechanism includes a front active pop-up mechanism disposed at the front of the engine hood and a rear active pop-up mechanism disposed at the rear of the engine hood;

[0013] The analysis and processing device is further configured to:

[0014] When the impact area is located at the front of the engine hood, a first control command is generated;

[0015] When the impact area is located at the rear of the engine hood, a second control command is generated;

[0016] When the impact area is located in the middle of the engine hood, a third control command is generated;

[0017] The control device is also configured to:

[0018] In response to the first control command, the front active pop-up mechanism is activated independently to pop up the front of the engine hood;

[0019] In response to the second control command, the rear active pop-up mechanism is activated independently to pop up the rear of the engine hood;

[0020] In response to the third control command, the front active pop-up mechanism and the rear active pop-up mechanism are simultaneously activated to pop up the entire engine hood.

[0021] According to some embodiments of the present invention, the front active pop-up mechanism is provided on both sides of the front part of the engine hood along the left-right direction of the vehicle, and the rear active pop-up mechanism is provided on both sides of the rear part of the engine hood along the left-right direction of the vehicle.

[0022] According to some embodiments of the present invention, the impact area is defined as the point of impact between the pedestrian's head and the engine hood.

[0023] According to some embodiments of the present invention, the pedestrian information in front of the vehicle includes the pedestrian's height, the pedestrian's position and distance relative to the engine hood, and the vehicle information includes the vehicle speed;

[0024] The analysis and processing device is further configured to:

[0025] When the pedestrian's height is less than a first preset height, the pedestrian is in front of the engine hood, the distance between the pedestrian and the engine hood is a first preset distance, and the vehicle speed is a first preset value, it is determined that the impact area is located in front of the engine hood.

[0026] When the pedestrian's height is greater than a second preset height, the pedestrian is in front of the engine hood, the distance between the pedestrian and the engine hood is a second preset distance, and the vehicle speed is a second preset value, it is determined that the impact area is located at the rear of the engine hood.

[0027] When the pedestrian's height is between the first preset height and the second preset height, the pedestrian is in front of the engine hood, the distance between the pedestrian and the engine hood is a third preset distance, and the vehicle speed is a third preset value, the impact area is determined to be located in the middle of the engine hood.

[0028] According to some embodiments of the present invention, the analysis and processing apparatus includes an image storage module and an image processing module;

[0029] The image storage module is used to store the images perceived by the visual sensing device, and to store information on pedestrians in front of the vehicle, vehicle information, and motion information of the active pop-up mechanism based on computer simulation, so as to generate the predicted impact area and the predicted pop-up height of the engine hood.

[0030] The image processing module is used to analyze, process, and compare the images perceived by the visual sensing device, and generate the control command. At the same time, it obtains the actual bounce height and the actual impact area of ​​the engine hood, determines whether the actual bounce height matches the predicted bounce height, and determines whether the actual impact area matches the predicted impact area.

[0031] A control method for the active engine hood pop-up system according to a second aspect of the present invention includes:

[0032] Obtain information on pedestrians and vehicles in front of the vehicle while it is in motion;

[0033] The pedestrian information and vehicle information in front of the vehicle are analyzed and processed to determine the impact area between the pedestrian and the engine hood;

[0034] Before impact, the active bounce mechanism corresponding to the impact area is activated.

[0035] The control method according to embodiments of the present invention has at least the following beneficial effects:

[0036] This invention determines the impact area between the pedestrian and the engine hood based on pedestrian and vehicle information during vehicle operation. Before the impact, it controls the activation of the active pop-up mechanism corresponding to the impact area. When it is determined that a pedestrian-vehicle collision is about to occur, the active pop-up mechanism is pre-adjusted, which improves the efficiency of engine hood pop-up, reduces the injury to pedestrians during the collision, and protects the safety of pedestrians.

[0037] According to some embodiments of the present invention, the step of controlling the activation of the active bounce mechanism corresponding to the impact area before the impact further includes:

[0038] When the impact area is located at the front of the engine hood, the active pop-up mechanism located at the front of the engine hood is activated independently to pop up the front of the engine hood.

[0039] When the impact area is located at the rear of the engine hood, the active pop-up mechanism located at the rear of the engine hood is activated independently to pop up the rear of the engine hood.

[0040] When the impact area is located in the middle of the engine hood, the active pop-up mechanisms of the front and rear of the engine hood are activated simultaneously to pop up the entire engine hood.

[0041] The step of analyzing and processing the pedestrian information and vehicle information in front of the vehicle to determine the impact area between the pedestrian and the engine hood also includes:

[0042] Information on pedestrians in front of the vehicle, vehicle information, and motion information of the active pop-up mechanism based on computer simulation are stored to generate a predicted impact area and a predicted pop-up height for the engine hood.

[0043] The images perceived by the visual sensing device are analyzed, processed, and compared to obtain the actual bounce height and actual impact area of ​​the engine hood. It is then determined whether the actual bounce height matches the theoretical bounce height and whether the actual impact area matches the theoretical impact area.

[0044] A vehicle according to a third aspect of an embodiment of the present invention includes the aforementioned active hood pop-up system.

[0045] According to a fourth aspect of the present invention, a computer-readable storage medium stores computer-executable instructions for causing a computer to perform the control method.

[0046] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Attached Figure Description

[0047] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0048] Figure 1 This is a schematic diagram of the active hood pop-up system of the present invention;

[0049] Figure 2 This is a flowchart of the control method for the active engine hood pop-up system of the present invention;

[0050] Figure 3 This is a flowchart illustrating the steps for determining the impact area according to the present invention.

[0051] Figure 4 This is a flowchart illustrating the steps of controlling the activation of different active bounce mechanisms based on different impact zones according to the present invention.

[0052] Icon labels:

[0053] Engine hood 100;

[0054] Visual sensing device 200;

[0055] Control device 300;

[0056] Front active pop-up mechanism 400;

[0057] Rear active pop-up mechanism 500;

[0058] Image storage module 600;

[0059] Image processing module 700. Detailed Implementation

[0060] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0061] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0062] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0063] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0064] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are some embodiments of the present invention, not all embodiments.

[0065] Currently, pedestrian protection technologies implemented in the engine hood area of ​​automobiles are mainly passive safety technologies, which are relatively backward in terms of intelligence, and certain safety hazards still exist for pedestrians. As people pay more attention to vehicle safety, existing pedestrian protection measures are far from meeting market demands; there is a greater need for intelligent and proactive pedestrian protection technologies to ensure pedestrian safety.

[0066] like Figure 1 As shown, an active hood pop-up system according to an embodiment of the present invention is used in a vehicle and includes an engine hood 100, an active pop-up device, a visual sensing device 200, an analysis and processing device, and a control device 300.

[0067] The engine hood 100 is installed at the front of the vehicle and located on the upper part of the engine compartment, and is used to protect the engine compartment.

[0068] The active pop-up device includes multiple active pop-up mechanisms, which are evenly distributed on the bottom side of the engine hood 100, wherein each active pop-up mechanism is configured to partially pop up the engine hood 100.

[0069] The visual perception device 200 of this embodiment covers the front of the vehicle. The installation method of the visual perception device 200 includes, but is not limited to, fixing the visual perception device 200 to the middle of the crossbeam on the A-pillar of the vehicle body. In other embodiments, the visual perception device 200 may be installed on the windshield. The visual perception device 200 of this embodiment is configured to visually detect the vehicle's driving information during vehicle operation, wherein the driving information includes pedestrian information and vehicle information in front of the vehicle.

[0070] The analysis and processing device is connected to the visual perception device 200. The analysis and processing device is configured to analyze and process pedestrian information and vehicle information in front of the vehicle to determine the impact area between the pedestrian and the engine hood 100 and generate control commands.

[0071] In this embodiment of the invention, the control device 300 is connected between the analysis and processing device and the active pop-up mechanism. The control device 300 is configured to receive control commands to activate the active pop-up mechanism corresponding to the impact area before the impact, so as to pop up the engine hood 100 according to a preset state.

[0072] This invention distributes multiple active pop-up mechanisms evenly on the bottom side of the hood 100. A visual perception device 200 detects pedestrian and vehicle information in front of the vehicle during its operation. An analysis and processing device then analyzes this information to determine the impact area between the pedestrian and the hood 100. Before impact, a control device 300 activates the active pop-up mechanism corresponding to the impact area, popping the hood 100. This invention pre-adjusts the active pop-up mechanisms when a pedestrian-vehicle collision is imminent and activates the corresponding active pop-up mechanism based on different impact areas to control the pop-up of the hood 100 within a specific area. This improves the efficiency of the hood 100's pop-up, reduces injuries to pedestrians during collisions, and achieves active and intelligent protection for pedestrians.

[0073] like Figure 1 As shown, the active pop-up mechanism of this embodiment of the invention is divided into a front active pop-up mechanism 400 and a rear active pop-up mechanism 500. The front active pop-up mechanism 400 is located at the front of the engine hood 100, while the rear active pop-up mechanism 500 is located at the rear of the engine hood 100. The front active pop-up mechanism 400 includes, but is not limited to, an active locking ring, an active pop-up strut, a front lifter, etc., and can pop up according to theoretical design requirements to protect pedestrians. The rear active pop-up mechanism 500 includes, but is not limited to, an active single-axis hinge, an active four-bar hinge, a rear lifter, etc., and can pop up according to theoretical design requirements to protect pedestrians.

[0074] In order to improve the stability of the engine hood 100 support, this embodiment of the invention provides two front active pop-up mechanisms 400, which are respectively located on the left and right sides of the front of the engine hood 100. Similarly, two rear active pop-up mechanisms 500 are also provided, which are respectively located on the left and right sides of the rear of the engine hood 100, thus forming four-point support for the engine hood 100.

[0075] Furthermore, the analysis and processing apparatus of this embodiment of the invention is also configured to perform the following control based on pedestrian information and vehicle information in front of the vehicle:

[0076] When the impact area is located at the front of the engine hood 100, a first control command is generated;

[0077] When the impact area is located at the rear of the engine hood 100, a second control command is generated;

[0078] When the impact area is located in the middle of the engine hood 100, a third control command is generated;

[0079] The control device 300 in this embodiment of the invention is further configured as follows:

[0080] The first control command is received to control the front active pop-up mechanism 400 to start independently and pop up the front of the engine hood 100.

[0081] The second control command is received to control the rear active pop-up mechanism 500 to start independently and pop up the rear of the engine hood 100.

[0082] The third control command is received to simultaneously activate the front active pop-up mechanism 400 and the rear active pop-up mechanism 500, popping up the entire engine hood 100.

[0083] It is understood that the embodiments of the present invention divide the pop-up mode of the engine hood 100 into three types. The first type is that the front of the engine hood 100 pops up, which is mainly for the impact area between the pedestrian and the engine hood 100 located in the front of the engine hood 100, so the rear of the engine hood 100 does not need to pop up, thereby reducing subsequent maintenance costs. The second type is that the rear of the engine hood 100 pops up, which is mainly for the impact area between the pedestrian and the engine hood 100 located in the rear of the engine hood 100, so the front of the engine hood 100 does not need to pop up. The third type is that the entire engine hood 100 pops up, which is mainly for the impact area between the pedestrian and the engine hood 100 located in the middle of the engine hood 100, so as to maximize the cushioning protection for the pedestrian.

[0084] In some embodiments, considering that the protection of the pedestrian's head is the most critical factor during an impact, the impact area is set as the point where the pedestrian's head impacts the engine hood 100.

[0085] In this embodiment of the invention, the pedestrian information in front of the vehicle includes the pedestrian's height, the pedestrian's position and distance relative to the engine hood 100, while the vehicle information includes the vehicle speed.

[0086] The analysis and processing apparatus of this embodiment of the invention is further configured as follows:

[0087] When the pedestrian's height is less than the first preset height, the pedestrian is in front of the engine hood 100, the distance between the pedestrian and the engine hood 100 is the first preset distance, and the vehicle speed is the first preset value, it is determined that the impact area is located in front of the engine hood 100. At this time, the control device 300 controls the front active pop-up mechanism 400 to start independently.

[0088] When the pedestrian's height is greater than the second preset height, the pedestrian is in front of the engine hood 100, the distance between the pedestrian and the engine hood 100 is the second preset distance, and the vehicle speed is the second preset value, it is determined that the impact area is located at the rear of the engine hood 100. At this time, the control device 300 controls the rear active pop-up mechanism 500 to start independently.

[0089] When the pedestrian's height is between the first preset height and the second preset height, the pedestrian is in front of the engine hood 100, the distance between the pedestrian and the engine hood 100 is the third preset distance, and the vehicle speed is the third preset value, it is determined that the impact area is located in the middle of the engine hood 100. At this time, the control device 300 controls the front active pop-up mechanism 400 and the rear active pop-up mechanism 500 to start simultaneously.

[0090] The first preset height, second preset height, first preset distance, first preset value, second preset distance, second preset value, third preset distance, and third preset value are determined according to different vehicle models.

[0091] In some embodiments, the analysis and processing apparatus includes an image storage module 600 and an image processing module 700.

[0092] The image storage module 600 stores the images perceived by the visual perception device 200, and stores information on pedestrians in front of the vehicle, vehicle information, and motion information of the active bounce mechanism based on computer simulation, in order to generate a predicted impact area and a predicted bounce height of the engine hood 100.

[0093] The image processing module 700 is used to analyze, process and compare the images perceived by the visual sensing device 200, and generate control commands. At the same time, it obtains the actual bounce height and the actual impact area of ​​the engine hood 100, determines whether the actual bounce height matches the predicted bounce height, and determines whether the actual impact area matches the predicted impact area.

[0094] This embodiment uses an image storage module 600 and an image processing module 700 to analyze and process the images perceived by the visual perception device 200 to obtain the actual impact area. Furthermore, during vehicle use, the actual impact area and the actual bounce height of the engine hood 100 are corrected and calibrated to improve safety performance.

[0095] like Figure 2 As shown, this embodiment of the invention also proposes a control method suitable for an active engine hood pop-up system, comprising the following steps:

[0096] Step S100: Obtain pedestrian and vehicle information in front of the vehicle during the vehicle's movement;

[0097] Step S200: Analyze and process the pedestrian information in front of the vehicle and the vehicle information to determine the impact area between the pedestrian and the engine hood 100;

[0098] Step S300: Before the impact, control the activation of the active bounce mechanism corresponding to the impact area.

[0099] This invention determines the impact area between the pedestrian and the engine hood 100 based on pedestrian and vehicle information during vehicle operation. Before the impact, it controls the activation of the active pop-up mechanism corresponding to the impact area. When it is determined that a pedestrian-vehicle collision is about to occur, the active pop-up mechanism is pre-adjusted, which improves the pop-up efficiency of the engine hood 100, reduces the injury to the pedestrian during the collision, and protects the pedestrian's life safety.

[0100] In step S100, the pedestrian information to be detected includes the pedestrian's height, the pedestrian's position and distance relative to the engine hood 100, and the vehicle information to be detected includes the vehicle speed.

[0101] like Figure 3 As shown, step S200 further includes the following steps:

[0102] Step S210: When the pedestrian's height is less than the first preset height, the pedestrian is in front of the engine hood 100, the distance between the pedestrian and the engine hood 100 is the first preset distance, and the vehicle speed is the first preset value, then it is determined that the impact area is located in front of the engine hood 100.

[0103] Step S220: When the pedestrian's height is greater than the second preset height, the pedestrian is in front of the engine hood 100, the distance between the pedestrian and the engine hood 100 is the second preset distance, and the vehicle speed is the second preset value, then it is determined that the impact area is located at the rear of the engine hood 100.

[0104] Step S230: When the pedestrian's height is between the first preset height and the second preset height, the pedestrian is in front of the engine hood 100, the distance between the pedestrian and the engine hood 100 is the third preset distance, and the vehicle speed is the third preset value, then it is determined that the impact area is located in the middle of the engine hood 100.

[0105] Where the first preset distance > the third preset distance > the second preset distance, and the first preset value < the third preset value < the second preset value.

[0106] In some embodiments, in step S200, it is also determined based on the object information in front of the vehicle that it is not a pedestrian. If it is not a person, the engine hood 100 will not pop up on its own. It is also necessary to determine based on the pedestrian information in front of the vehicle whether there is a collision risk between the pedestrian and the vehicle. If there is a collision risk, the engine hood 100 will not pop up on its own.

[0107] like Figure 4 As shown, step S300 further includes the following steps:

[0108] Step S310: When the impact area is located at the front of the engine hood 100, the front active pop-up mechanism 400 is activated independently to pop up the front of the engine hood 100.

[0109] Step S320: When the impact area is located at the rear of the engine hood 100, the rear active pop-up mechanism 500 is activated independently to pop up the rear of the engine hood 100.

[0110] Step S330: When the impact area is located in the middle of the engine hood 100, the front active pop-up mechanism 400 and the rear active pop-up mechanism 500 are activated simultaneously to pop up the entire engine hood 100.

[0111] In some embodiments, information on pedestrians in front of the vehicle, vehicle information, and motion information of the active bounce mechanism based on computer simulation are stored to generate a predicted impact area and a predicted bounce height for the engine hood 100.

[0112] Then, the images perceived by the visual sensing device 200 are analyzed, processed, and compared, and control commands are generated. At the same time, the actual bounce height and actual impact area of ​​the engine hood 100 are obtained, and it is determined whether the actual bounce height matches the predicted bounce height and whether the actual impact area matches the predicted impact area.

[0113] This invention also provides a vehicle, including a memory, a processor, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the control method described above.

[0114] The processor can be implemented using a general-purpose central processing unit (CPU), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this application.

[0115] The memory can be implemented in the form of read-only memory (ROM), static storage device, dynamic storage device, or random access memory (RAM). The memory can store the operating system and other applications. When the technical solutions provided in the embodiments of this specification are implemented through software or firmware, the relevant program code is stored in the memory and is called and executed by the processor.

[0116] The vehicle also includes the aforementioned active hood pop-up system. Specifically, the vehicle can be a private car, such as a sedan, SUV, MPV, or pickup truck. The vehicle can also be a commercial vehicle, such as a van, bus, small truck, or large semi-trailer. The vehicle can be a gasoline-powered vehicle or a new energy vehicle. When the vehicle is a new energy vehicle, it can be a hybrid vehicle or a pure electric vehicle.

[0117] According to an embodiment of the present invention, a computer-readable storage medium is stored thereon, which, when executed by a processor, implements the control method described above.

[0118] The computer-readable storage medium of this invention can be any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of computer-readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this invention, the computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0119] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, capable of sending, propagating, or transmitting programs for use by or in connection with an instruction execution system, apparatus, or device.

[0120] Program code contained on a computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.

[0121] It is understood that the contents of the above-described active hood pop-up system embodiments are all applicable to this vehicle embodiment. The specific functions implemented in this vehicle embodiment are the same as those in the above-described active hood pop-up system embodiments, and the beneficial effects achieved are also the same as those achieved in the above-described active hood pop-up system embodiments.

[0122] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0123] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0124] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An active hood pop-up system for a vehicle, characterized in that, include: An engine hood, mounted on the front of the vehicle; An active pop-up device includes multiple active pop-up mechanisms, which are evenly distributed on the bottom side of the engine hood, and the active pop-up mechanisms are configured to push the engine hood to pop up partially; A visual sensing device, the detection range of which covers the front of the vehicle, is configured to visually detect the vehicle's driving information during vehicle operation, the driving information including pedestrian information and vehicle information in front of the vehicle. An analysis and processing device, connected to the visual perception device, is configured to analyze and process the driving information to determine the impact area between the pedestrian and the engine hood, and generate control commands. A control device is connected between the analysis and processing device and the active pop-up mechanism. The control device is configured to activate the active pop-up mechanism corresponding to the impact area before the impact in response to the control command, so as to pop up the engine hood. The analysis and processing device includes an image storage module and an image processing module; The image storage module is used to store the images perceived by the visual sensing device, and to store information on pedestrians in front of the vehicle, vehicle information, and motion information of the active pop-up mechanism based on computer simulation, so as to generate the predicted impact area and the predicted pop-up height of the engine hood. The image processing module is used to analyze, process, and compare the images perceived by the visual sensing device to obtain the actual bounce height and actual impact area of ​​the engine hood, determine whether the actual bounce height matches the predicted bounce height, determine whether the actual impact area matches the predicted impact area, generate the control command, and correct and calibrate the actual impact area and the actual bounce height of the engine hood based on the judgment results.

2. The active engine hood pop-up system according to claim 1, characterized in that: The active pop-up mechanism includes a front active pop-up mechanism located at the front of the engine hood and a rear active pop-up mechanism located at the rear of the engine hood; The analysis and processing device is further configured to: When the impact area is located at the front of the engine hood, a first control command is generated; When the impact area is located at the rear of the engine hood, a second control command is generated; When the impact area is located in the middle of the engine hood, a third control command is generated; The control device is also configured to: In response to the first control command, the front active pop-up mechanism is activated independently to pop up the front of the engine hood; In response to the second control command, the rear active pop-up mechanism is activated independently to pop up the rear of the engine hood; In response to the third control command, the front active pop-up mechanism and the rear active pop-up mechanism are simultaneously activated to pop up the entire engine hood.

3. The active hood pop-up system according to claim 2, characterized in that: The front active pop-up mechanism is provided on both sides of the front part of the engine hood along the left and right direction of the vehicle, and the rear active pop-up mechanism is provided on both sides of the rear part of the engine hood along the left and right direction of the vehicle.

4. The active engine hood pop-up system according to claim 2, characterized in that: The impact zone is defined as the point where the pedestrian's head impacts the engine hood.

5. The active engine hood pop-up system according to claim 4, characterized in that: The pedestrian information in front of the vehicle includes the pedestrian's height, the pedestrian's position and distance relative to the engine hood, and the vehicle information includes the vehicle speed. The analysis and processing device is further configured to: When the pedestrian's height is less than a first preset height, the pedestrian is in front of the engine hood, the distance between the pedestrian and the engine hood is a first preset distance, and the vehicle speed is a first preset value, it is determined that the impact area is located in front of the engine hood. When the pedestrian's height is greater than a second preset height, the pedestrian is in front of the engine hood, the distance between the pedestrian and the engine hood is a second preset distance, and the vehicle speed is a second preset value, it is determined that the impact area is located at the rear of the engine hood. When the pedestrian's height is between the first preset height and the second preset height, the pedestrian is in front of the engine hood, the distance between the pedestrian and the engine hood is a third preset distance, and the vehicle speed is a third preset value, the impact area is determined to be located in the middle of the engine hood.

6. A control method, characterized in that, The control method, applicable to the active hood pop-up system as described in any one of claims 1 to 5, comprises: Obtain information on pedestrians and vehicles in front of the vehicle while it is in motion; The pedestrian information and vehicle information in front of the vehicle are analyzed and processed to determine the impact area between the pedestrian and the engine hood; Before impact, the active bounce mechanism corresponding to the impact area is activated.

7. The control method according to claim 6, characterized in that: The step of controlling the activation of the active bounce mechanism corresponding to the impact area before the impact also includes: When the impact area is located at the front of the engine hood, the active pop-up mechanism located at the front of the engine hood is activated independently to pop up the front of the engine hood. When the impact area is located at the rear of the engine hood, the active pop-up mechanism located at the rear of the engine hood is activated independently to pop up the rear of the engine hood. When the impact area is located in the middle of the engine hood, the active pop-up mechanisms of the front and rear of the engine hood are activated simultaneously to pop up the entire engine hood.

8. The control method according to claim 6, characterized in that: The step of analyzing and processing the pedestrian information and vehicle information in front of the vehicle to determine the impact area between the pedestrian and the engine hood also includes: Information on pedestrians in front of the vehicle, vehicle information, and motion information of the active pop-up mechanism based on computer simulation are stored to generate a predicted impact area and a predicted pop-up height for the engine hood. The images perceived by the visual sensing device are analyzed, processed, and compared to obtain the actual bounce height and actual impact area of ​​the engine hood. It is then determined whether the actual bounce height matches the predicted bounce height and whether the actual impact area matches the predicted impact area.

9. A vehicle, characterized in that, Including the active hood pop-up system as described in any one of claims 1 to 5.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions for causing a computer to perform the control method as described in any one of claims 6 to 7.

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