Engine hood active bouncing system, control method and vehicle

Abstract

The invention discloses an engine hood active bouncing system, a control method and a vehicle, the engine hood active bouncing system comprises an engine hood, an active bouncing device, a visual perception device, an analysis processing device and a control device, the active bouncing device comprises a plurality of active bouncing mechanisms, and the active bouncing mechanisms are evenly distributed on the bottom side of the engine hood; the active bouncing mechanism is configured to enable the engine cover to bounce locally; the visual perception device is configured to visually detect driving information of the vehicle in the driving process of the vehicle, and the driving information comprises information of a person ahead of the vehicle and vehicle information; the analyzing and processing device is configured to analyze and process the driving information so as to judge the collision area of the pedestrian and the engine hood; and the control device is configured to control the active bouncing mechanism corresponding to the impact area to start before impact. When the pedestrian collides with the vehicle, the active bouncing mechanisms are pre-adjusted, the corresponding active bouncing mechanisms are started according to different collision areas, and active and intelligent protection of the pedestrian is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, and in particular to an engine hood active pop-up system, a control method and a vehicle. Background Art

[0002] At present, an active pop-up function is set in the car hood area to achieve pedestrian protection. When a pedestrian collides with a vehicle, the entire hood will pop up to form a buffering protection effect for the pedestrian. However, there are the following problems in actual operation: the pop-up of the hood is passive and has a low degree of intelligence. It pops up only after the vehicle collides with a pedestrian. This may cause the hood to pop up synchronously with the pedestrian collision, thereby reducing the buffering protection effect, and there are still certain safety hazards. In addition, the entire hood now pops up, but in some traffic accidents, the impact area between the pedestrian and the hood is small. If the entire hood pops up, although the buffering protection effect can be achieved, it will increase the subsequent maintenance cost and cause the vehicle to be unable to drive after an accident. Summary of the invention The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an active pop-up system for an engine hood, which can actively control the corresponding area of ​​the engine hood to pop up according to different impact areas, so as to achieve active and intelligent protection of pedestrians.

[0003] According to a first aspect of an embodiment of the present invention, an engine hood active pop-up system is used for a vehicle, comprising: an engine hood mounted on the front of the vehicle; An active pop-up device, comprising a plurality of active pop-up mechanisms, wherein the plurality of active pop-up mechanisms are uniformly distributed on the bottom side of the engine hood, and the active pop-up mechanisms are configured to push the engine hood to partially pop up; A visual perception device, wherein the detection range of the visual perception device covers the front of the vehicle, and the visual perception device is configured to visually detect driving information of the vehicle during the driving of the vehicle, wherein the driving information includes information of pedestrians in front of the vehicle and information of the vehicle; an analysis and processing device connected to the visual perception device, the analysis and processing device being configured to analyze and process the driving information to determine a collision area between the pedestrian and the engine hood, and to generate a control instruction; A control device is connected between the analysis and processing device and the active pop-up mechanism, and is configured to control the active pop-up mechanism corresponding to the impact area to start before the impact in response to the control instruction, so as to pop up the engine hood.

[0004] The engine hood active pop-up system according to the embodiment of the present invention has at least the following beneficial effects: The present invention distributes multiple active pop-up mechanisms evenly on the bottom side of the engine hood, detects pedestrian information and vehicle information in front of the vehicle during driving through a visual perception device, and then analyzes and processes the pedestrian information and vehicle information in front of the vehicle through an analysis and processing device to determine the collision area between the pedestrian and the engine hood. The control device controls the active pop-up mechanism corresponding to the collision area to start before the collision to pop up the engine hood. The present invention pre-adjusts the active pop-up mechanism when it is determined that a collision between a pedestrian and a vehicle is about to occur, and starts the corresponding active pop-up mechanism according to different collision areas to control the corresponding area range of the engine hood to pop up, thereby improving the efficiency of the engine hood pop-up, reducing the damage to pedestrians when colliding with vehicles, and realizing active and intelligent protection of pedestrians.

[0005] 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; The analysis and processing device is further configured to: When the impact area is located in front of the engine hood, a first control instruction is generated; When the impact area is located at the rear of the engine hood, a second control instruction is generated; When the impact area is located in the middle of the engine hood, a third control instruction is generated; The control device is also configured to: In response to the first control instruction, the front active pop-up mechanism is controlled to be activated separately to pop up the front part of the engine hood; In response to the second control instruction, the rear active pop-up mechanism is controlled to be activated separately to pop up the rear part of the engine hood; In response to the third control instruction, the front active pop-up mechanism and the rear active pop-up mechanism are controlled to be activated simultaneously to pop up the entire engine hood.

[0006] According to some embodiments of the present invention, the front active pop-up mechanism is respectively provided on both sides of the front portion of the engine hood along the left-right direction of the vehicle, and the rear active pop-up mechanism is respectively provided on both sides of the rear portion of the engine hood along the left-right direction of the vehicle.

[0007] According to some embodiments of the present invention, the impact area is set as the impact position between the pedestrian's head and the engine hood.

[0008] According to some embodiments of the present invention, the pedestrian information in front of the vehicle includes the height of the pedestrian, the position and distance of the pedestrian relative to the engine hood, and the vehicle information includes the vehicle speed; The analysis and processing device is further configured to: When the height of the pedestrian is less than a first preset height, the pedestrian is located 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, determining that the impact area is located in front of the engine hood; When the height of the pedestrian is greater than a second preset height, the pedestrian is located 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, determining that the impact area is located at the rear of the engine hood; When the height of the pedestrian is between the first preset height and the second preset height, the pedestrian is located 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, it is determined that the impact area is located in the middle of the engine hood.

[0009] According to some embodiments of the present invention, the analysis and processing device includes an image storage module and an image processing module; The image storage module is used to store the image perceived by the visual perception device, and store the information of the pedestrian in front of the vehicle, the vehicle information, and the motion information of the active pop-up mechanism based on computer simulation, so as to generate a predicted impact area and a predicted pop-up height of the engine hood; The image processing module is used to analyze, process and compare the image perceived by the visual perception device, and generate the control instruction, while obtaining the actual pop-up height and actual impact area of ​​the engine hood, judging whether the actual pop-up height is consistent with the predicted pop-up height, and judging whether the actual impact area is consistent with the predicted impact area.

[0010] According to a second aspect of an embodiment of the present invention, a control method applicable to the engine hood active pop-up system includes: Obtain information about pedestrians and vehicles in front of the vehicle while the vehicle is traveling; Analyzing and processing the pedestrian information in front of the vehicle and the vehicle information to determine the collision area between the pedestrian and the engine hood; Before the collision, the active pop-up mechanism corresponding to the collision area is controlled to start.

[0011] The control method according to the embodiment of the present invention has at least the following beneficial effects: The present invention determines the collision area between the pedestrian and the engine hood based on the information of the pedestrian in front of the vehicle and the vehicle information during the driving process of the vehicle, controls the active pop-up mechanism corresponding to the collision area to start before the collision, and pre-adjusts the active pop-up mechanism when it is determined that the pedestrian and the vehicle are about to collide, thereby improving the efficiency of the engine hood pop-up, reducing the damage to the pedestrian when the pedestrian collides with the vehicle, and protecting the life safety of the pedestrian.

[0012] According to some embodiments of the present invention, controlling the active pop-up mechanism corresponding to the impact area to start before the impact further includes: When the impact area is located at the front of the engine hood, controlling the active pop-up mechanism disposed at the front of the engine hood to start 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 disposed at the rear of the engine hood is controlled to start 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 at the front and rear of the engine hood are controlled to start simultaneously to pop up the entire engine hood.

[0013] The analyzing and processing the pedestrian information in front of the vehicle and the vehicle information to determine the collision area between the pedestrian and the engine hood also includes: The computer-simulated pedestrian information, vehicle information, and motion information of the active pop-up mechanism are stored to generate a predicted impact area and a predicted pop-up height of the engine hood; The images perceived by the visual perception device are analyzed, processed and compared to obtain the actual pop-up height and actual impact area of ​​the engine hood, to determine whether the actual pop-up height is consistent with the theoretical pop-up height, and to determine whether the actual impact area is consistent with the theoretical impact area.

[0014] A vehicle according to a third aspect of an embodiment of the present invention comprises the above-mentioned engine hood active pop-up system.

[0015] According to a fourth aspect of an embodiment of the present invention, a computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the control method.

[0016] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 is a schematic diagram of an engine hood active pop-up system of the present invention; Figure 2 It is a flow chart of the control method of the engine hood active pop-up system of the present invention; Figure 3 A flowchart of the steps of determining the impact area of ​​the present invention; Figure 4A flowchart of the steps of controlling the activation of different active pop-up mechanisms according to different impact areas of the present invention; Figure Number: Engine hood 100; Visual perception device 200; Control device 300; Front active pop-up mechanism 400; Rear active pop-up mechanism 500; Image storage module 600; Image processing module 700. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0019] In the description of the present invention, it should be understood that descriptions involving orientation, such as orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In the description of the present invention, "a plurality" means more than two. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments.

[0023] At present, the pedestrian protection technology implemented in the automobile hood area is mainly passive safety technology, which is still relatively backward in terms of intelligence, and there are still certain safety hazards in pedestrian protection. As people pay more attention to automobile safety, the existing pedestrian protection measures are far from meeting the market demand, and people need an intelligent and active pedestrian protection technology to ensure the safety of pedestrians.

[0024] like Figure 1 As shown, an engine hood active pop-up system according to an embodiment of the present invention is used for a vehicle, and includes an engine hood 100, an active pop-up device, a visual perception device 200, an analysis and processing device, and a control device 300.

[0025] The engine hood 100 is installed at the front of the vehicle and located at the upper part of the engine compartment. The engine hood 100 is used to protect the engine compartment.

[0026] The active pop-up device includes a plurality of 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 .

[0027] The visual perception range of the visual perception device 200 of the embodiment of the present invention covers the front of the vehicle, wherein 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 cross beam on the A-pillar of the vehicle body. In some other embodiments, the visual perception device 200 can be installed on the front windshield. The visual perception device 200 of the embodiment of the present invention is configured to visually detect the driving information of the vehicle during the driving process of the vehicle, wherein the driving information includes the information of pedestrians in front of the vehicle and the vehicle information.

[0028] The analysis and processing device is connected to the visual perception device 200, and is configured to analyze and process the pedestrian information and the vehicle information in front of the vehicle to determine the collision area between the pedestrian and the engine hood 100, and generate a control instruction; The control device 300 of the embodiment of the present invention is connected between the analysis and processing device and the active pop-up mechanism. The control device 300 is configured to receive a control instruction to control the active pop-up mechanism corresponding to the impact area to start before the impact, so as to pop up the engine hood 100 according to a preset state.

[0029] The present invention distributes multiple active pop-up mechanisms evenly on the bottom side of the engine hood 100, detects pedestrian information and vehicle information in front of the vehicle during driving through the visual perception device 200, and then analyzes and processes the pedestrian information and vehicle information in front of the vehicle through the analysis and processing device to determine the collision area between the pedestrian and the engine hood 100. The control device 300 controls the active pop-up mechanism corresponding to the collision area to start before the collision to pop up the engine hood 100. The present invention pre-adjusts the active pop-up mechanism when it is determined that a collision between a pedestrian and a vehicle is about to occur, and starts the corresponding active pop-up mechanism according to different collision areas to control the corresponding area range of the engine hood 100 to pop up, thereby improving the efficiency of the pop-up of the engine hood 100, reducing the damage to pedestrians when colliding with vehicles, and realizing active and intelligent protection of pedestrians.

[0030] like Figure 1As shown, the active pop-up mechanism of the embodiment of the present 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 arranged at the front of the engine hood 100, and the rear active pop-up mechanism 500 is arranged 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., which can pop up according to theoretical design requirements to protect pedestrians, and the rear active pop-up mechanism 500 includes but is not limited to an active single-axis hinge, an active four-link hinge, a rear lifter, etc., which can pop up according to theoretical design requirements to protect pedestrians.

[0031] In order to improve the stability of the support for the engine hood 100, the embodiment of the present invention is provided with two front active pop-up mechanisms 400, which are respectively arranged on the left and right sides of the front of the engine hood 100, and two rear active pop-up mechanisms 500 are also provided, which are respectively arranged on the left and right sides of the rear of the engine hood 100, thereby forming a four-point support for the engine hood 100.

[0032] Furthermore, the analysis and processing device of the embodiment of the present invention is also configured to perform the following control according to the pedestrian information and the vehicle information: When the impact area is located at the front of the engine hood 100, a first control instruction is generated; When the impact area is located at the rear of the engine hood 100, a second control instruction is generated; When the impact area is located in the middle of the engine hood 100, a third control instruction is generated; The control device 300 of the embodiment of the present invention is further configured as follows: Receiving a first control instruction to control the front active pop-up mechanism 400 to start independently and pop up the front part of the engine hood 100; receiving a second control instruction to control the rear active pop-up mechanism 500 to start independently, and pop up the rear part of the engine hood 100; The third control instruction is received to control the front active pop-up mechanism 400 and the rear active pop-up mechanism 500 to start simultaneously, so as to pop up the entire engine hood 100 .

[0033] It can be understood that the embodiment of the present invention divides the pop-up modes of the hood 100 into three types. The first type is the pop-up of the front of the hood 100, which is mainly aimed at the impact area between the pedestrian and the hood 100, which is located at the front of the hood 100, so that the rear of the hood 100 does not need to pop up, so as to reduce the subsequent maintenance cost; the second type is the pop-up of the rear of the hood 100, which is mainly aimed at the impact area between the pedestrian and the hood 100, which is located at the rear of the hood 100, so that the front of the hood 100 does not need to pop up; the third type is the overall pop-up of the hood 100, which is mainly aimed at the impact area between the pedestrian and the hood 100, which is located in the middle of the hood 100, so as to maximize the cushioning protection of the pedestrian.

[0034] In some embodiments, considering that the protection of the pedestrian's head is the most critical during the collision, the impact area is set as the collision position between the pedestrian's head and the engine hood 100 .

[0035] The pedestrian information in front of the vehicle in the embodiment of the present invention includes the height of the pedestrian, the position and distance of the pedestrian relative to the engine hood 100, and the vehicle information includes the vehicle speed; The analysis and processing device of the embodiment of the present invention is further configured as follows: When the height of the pedestrian is less than the first preset height, the pedestrian is located 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 the front of the engine hood 100, and the control device 300 controls the front active pop-up mechanism 400 to start alone; When the height of the pedestrian is greater than the second preset height, the pedestrian is located 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, and the control device 300 controls the rear active pop-up mechanism 500 to start alone; When the height of the pedestrian is between the first preset height and the second preset height, the pedestrian is located in front of the engine hood 100, the distance between the pedestrian and the engine hood 100 is a third preset distance, and the vehicle speed is a 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.

[0036] The first preset height, the second preset height, the first preset distance, the first preset value, the second preset distance, the second preset value, the third preset distance and the third preset value are determined according to different vehicle models.

[0037] In some embodiments, the analysis and processing device includes an image storage module 600 and an image processing module 700 .

[0038] The image storage module 600 is used to store the image perceived by the visual perception device 200, and to store the pedestrian information in front of the vehicle, the vehicle information, and the motion information of the active pop-up mechanism based on computer simulation, so as to generate a predicted impact area and a predicted pop-up height of the engine hood 100.

[0039] The image processing module 700 is used to analyze, process and compare the image perceived by the visual perception device 200, and generate control instructions, while obtaining the actual pop-up height and actual impact area of ​​the engine hood 100, and determining whether the actual pop-up height is consistent with the predicted pop-up height, and whether the actual impact area is consistent with the predicted impact area.

[0040] This embodiment uses the image storage module 600 and the image processing module 700 to analyze and process the image perceived by the visual perception device 200 to obtain the actual impact area. During vehicle use, the actual impact area and the actual pop-up height of the engine hood 100 are also corrected and proofread to improve safety performance.

[0041] like Figure 2 As shown, the embodiment of the present invention also provides a control method applicable to the engine hood active pop-up system, comprising the following steps: Step S100: obtaining information of pedestrians and vehicles in front of the vehicle during the driving process; Step S200: analyzing and processing the pedestrian information in front of the vehicle and the vehicle information to determine the collision area between the pedestrian and the engine hood 100; Step S300: before the collision, the active pop-up mechanism corresponding to the collision area is controlled to start.

[0042] The present invention determines the collision area between the pedestrian and the engine hood 100 based on the pedestrian information in front of the vehicle and the vehicle information during the driving process of the vehicle, controls the active pop-up mechanism corresponding to the collision area to start before the collision, and pre-adjusts the active pop-up mechanism when it is determined that the pedestrian and the vehicle are about to collide, thereby improving the efficiency of the pop-up of the engine hood 100, reducing the damage to the pedestrian when the pedestrian collides with the vehicle, and protecting the life safety of the pedestrian.

[0043] In step S100 , the pedestrian information in front of the vehicle to be detected includes the height of the pedestrian, the position and distance of the pedestrian relative to the engine hood 100 , and the vehicle information to be detected includes the vehicle speed.

[0044] like Figure 3 As shown, step S200 also includes the following steps: Step S210: when the height of the pedestrian is less than the first preset height, the pedestrian is located 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; Step S220: when the height of the pedestrian is greater than the second preset height, the pedestrian is located 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; Step S230: When the pedestrian's height is between the first preset height and the second preset height, the pedestrian is located in front of the engine hood 100, the distance between the pedestrian and the engine hood 100 is a third preset distance, and the vehicle speed is a third preset value, it is determined that the impact area is located in the middle of the engine hood 100.

[0045] 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.

[0046] In some embodiments, in step S200, it is also determined based on the information of the object in front of the vehicle that it is not a pedestrian. If it is not a person, the engine hood 100 will not actively pop up. It is also necessary to determine whether there is a risk of collision between the pedestrian and the vehicle based on the pedestrian information in front of the vehicle. If there is a risk of collision, the engine hood 100 will not actively pop up.

[0047] like Figure 4 As shown, step S300 also includes the following steps: Step S310: When the impact area is located at the front of the engine hood 100, the front active pop-up mechanism 400 is controlled to start alone to pop up the front of the engine hood 100; Step S320: When the impact area is located at the rear of the engine hood 100, the rear active pop-up mechanism 500 is controlled to start alone to pop up the rear of the engine hood 100; 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 controlled to start simultaneously to pop up the entire engine hood 100 .

[0048] In some embodiments, the pedestrian information in front of the vehicle, the vehicle information, and the 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 of the engine hood 100 .

[0049] The image perceived by the visual perception device 200 is then analyzed, processed and compared, and a control instruction is generated. At the same time, the actual pop-up height and the actual impact area of ​​the engine hood 100 are obtained to determine whether the actual pop-up height is consistent with the predicted pop-up height, and whether the actual impact area is consistent with the predicted impact area.

[0050] An embodiment of the present invention further provides a vehicle, comprising a memory, a processor, and a program stored in the memory and executable on the processor, wherein the control method is implemented when the program is executed by the processor.

[0051] The processor can be implemented as a general-purpose central processing unit (CPU), a microprocessor, an 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 the present application.

[0052] The memory can be implemented in the form of a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory can store an operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program codes are stored in the memory, and the processor is called to execute the methods of the embodiments of this application.

[0053] The vehicle also includes the above-mentioned engine hood active 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 an operating vehicle, such as a van, bus, small truck or large trailer. The vehicle can be a gasoline 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.

[0054] A computer-readable storage medium according to an embodiment of the present invention stores a computer program, which implements the above control method when executed by a processor.

[0055] The computer-readable storage medium of the embodiment of the present invention may adopt any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium may be, but is not limited to: an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In an embodiment of the present invention, a computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, device or device.

[0056] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0057] The program code embodied on the computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0058] It can be understood that the contents of the above-mentioned engine hood active pop-up system embodiment are all applicable to the present vehicle embodiment, the functions specifically implemented by the present vehicle embodiment are the same as those of the above-mentioned engine hood active pop-up system embodiment, and the beneficial effects achieved are also the same as those achieved by the above-mentioned engine hood active pop-up system embodiment.

[0059] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0061] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose 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, comprising a plurality of active pop-up mechanisms, wherein the plurality of active pop-up mechanisms are uniformly distributed on the bottom side of the engine hood, and the active pop-up mechanisms are configured to push the engine hood to partially pop up; A visual perception device, wherein the detection range of the visual perception device covers the front of the vehicle, and the visual perception device is configured to visually detect driving information of the vehicle during the driving of the vehicle, wherein the driving information includes information of pedestrians in front of the vehicle and information of the vehicle; an analysis and processing device connected to the visual perception device, the analysis and processing device being configured to analyze and process the driving information to determine a collision area between the pedestrian and the engine hood, and to generate a control instruction; A control device is connected between the analysis and processing device and the active pop-up mechanism, and is configured to control the active pop-up mechanism corresponding to the impact area to start before the impact in response to the control instruction, so as to pop up the engine hood.

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

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

4. The engine hood active pop-up system according to claim 2, characterized in that: The impact area is set as the impact position between the pedestrian's head and the engine hood.

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

6. The engine hood active pop-up system according to claim 1, characterized in that: The analysis and processing device includes an image storage module and an image processing module; The image storage module is used to store the image perceived by the visual perception device, and store the information of the pedestrian in front of the vehicle, the vehicle information, and the motion information of the active pop-up mechanism based on computer simulation, so as to generate a predicted impact area and a predicted pop-up height of the engine hood; The image processing module is used to analyze, process and compare the image perceived by the visual perception device, and generate the control instruction to obtain the actual pop-up height and actual impact area of ​​the engine hood, determine whether the actual pop-up height is consistent with the predicted pop-up height, and determine whether the actual impact area is consistent with the predicted impact area.

7. A control method, characterized in that: Applicable to the engine hood active pop-up system according to any one of claims 1 to 6, the control method comprises: Obtain information about pedestrians and vehicles in front of the vehicle while the vehicle is traveling; Analyzing and processing the pedestrian information in front of the vehicle and the vehicle information to determine the collision area between the pedestrian and the engine hood; Before the collision, the active pop-up mechanism corresponding to the collision area is controlled to start.

8. The control method according to claim 7, characterized in that: The controlling the active pop-up mechanism corresponding to the impact area to start before the impact further includes: When the impact area is located at the front of the engine hood, controlling the active pop-up mechanism disposed at the front of the engine hood to start 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 disposed at the rear of the engine hood is controlled to start 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 at the front and rear of the engine hood are controlled to start simultaneously to pop up the entire engine hood.

9. The control method according to claim 7, characterized in that: The analyzing and processing the pedestrian information in front of the vehicle and the vehicle information to determine the collision area between the pedestrian and the engine hood also includes: The computer-simulated pedestrian information, vehicle information, and motion information of the active pop-up mechanism are stored to generate a predicted impact area and a predicted pop-up height of the engine hood; The image perceived by the visual perception device is analyzed, processed and compared to obtain the actual pop-up height and actual impact area of ​​the engine hood, to determine whether the actual pop-up height is consistent with the theoretical pop-up height, and to determine whether the actual impact area is consistent with the theoretical impact area.

10. A vehicle, characterized in that: It comprises an active pop-up system for the engine hood as claimed in any one of claims 1 to 6.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the control method according to any one of claims 7 to 8.

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