Pedestrian protection active hood ignition control method, system, device, and medium

Abstract

The application discloses a pedestrian protection active hood ignition control method, system, device and medium, and the method comprises the following steps: when a collision signal is received, determining a collision area according to the collision signal, wherein the collision area comprises a grille lamp area and a non-grille lamp area; determining vehicle collision information according to the collision signal and the collision area; when the vehicle collision information is a pedestrian collision, determining whether the collision signal meets preset ignition conditions of the collision area; and when the collision signal meets the preset ignition conditions, performing pedestrian protection active hood ignition control according to the collision signal and the vehicle collision information. In the prior art, the collision position cannot be identified, and the same ignition threshold can only be set for the collision of different positions at the same speed. According to the application, the collision area is identified according to the collision signal, and then the pedestrian protection active hood ignition control is performed according to the preset ignition conditions of the collision area, so that the problems of no explosion and false explosion of the collision are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicle collision technology, and in particular to a pedestrian protection active hood ignition control method, system, device and medium. BACKGROUND

[0002] With the increasing emphasis of consumers and regulations on out-of-vehicle pedestrian protection, more and more vehicles are equipped with active pedestrian protection devices, which can pop up the engine hood when a pedestrian collision occurs, thereby reducing the damage to the pedestrian's head and playing a protective role. In the prior art, the front end structure of the traditional front bumper is uniform in strength, and when the vehicle front end is hit at different positions, the pressure value difference is not large, and for different position impacts, only one ignition threshold value is set to achieve it, but this method cannot identify the specific position of the impact, and setting the same ignition threshold value for different position impacts at the same speed cannot achieve regional precise control, resulting in collision not to explode or misfire. Therefore, how to avoid the problem of vehicle collision not to explode or misfire has become a problem to be solved.

[0003] The above content is only used to assist in understanding the technical solutions of the present application and does not represent the acknowledgement of the above content as prior art. SUMMARY

[0004] The main purpose of the present application is to provide a pedestrian protection active hood ignition control method, system, device and medium, which aims to solve the technical problem of how to avoid the problem of vehicle collision not to explode or misfire.

[0005] To achieve the above-mentioned purpose, the present application provides a pedestrian protection active hood ignition control method, which comprises:

[0006] Upon receiving a collision signal, determining an impact area according to the collision signal, the impact area comprising a grille light area and a non-grille light area;

[0007] determining vehicle collision information according to the collision signal and the impact area;

[0008] when the vehicle collision information is a pedestrian collision, determining whether the collision signal meets the preset ignition condition corresponding to the impact area;

[0009] when the collision signal meets the preset ignition condition corresponding to the impact area, performing pedestrian protection active hood ignition control according to the collision signal and the vehicle collision information.

[0010] Optionally, before the step of determining the impact area according to the collision signal when the collision signal is received, the method further comprises:

[0011] acquire a pressure signal corresponding to a row pressure pipe sensor, an acceleration signal corresponding to a row pressure acceleration sensor, and a hitting area signal corresponding to a camera;

[0012] generate a collision signal according to the pressure signal, the acceleration signal, and the hitting area signal.

[0013] Optionally, after the step of determining vehicle collision information according to the collision signal and the hitting area, the method further comprises:

[0014] when the vehicle collision information is non-living collision, performing pedestrian protection active hood non-ignition control according to the collision signal and the vehicle collision information.

[0015] Optionally, the step of determining the hitting area according to the collision signal comprises:

[0016] extracting a hitting area signal from the collision signal;

[0017] determining the hitting area according to the hitting area signal;

[0018] judging whether the hitting area is in a first preset area;

[0019] when the hitting area is in the first preset area, determining that the hitting area is a grille lamp area.

[0020] Optionally, after the step of judging whether the hitting area is in the first preset area, the method further comprises:

[0021] when the hitting area is not in the first preset area, judging whether the hitting area is in a second preset area;

[0022] if yes, determining that the hitting area is a non-grille lamp area.

[0023] Optionally, after the step of judging whether the hitting area is in the second preset area, the method further comprises:

[0024] when the hitting area is not in the second preset area, judging whether the hitting area is in a third preset area;

[0025] when the hitting area is in the third preset area, determining a grille area proportion value corresponding to the hitting area in the grille area and a non-grille area proportion value corresponding to the hitting area in the non-grille area;

[0026] when the grille area proportion value is greater than or equal to the non-grille area proportion value, determining that the hitting area is the grille area;

[0027] When the grid area ratio value is less than the non-grid area ratio value, the impact area is a non-grid area.

[0028] Optionally, the step of determining whether the collision signal meets the preset ignition condition corresponding to the impact area comprises:

[0029] extracting a pressure signal and an acceleration signal from the collision signal;

[0030] generating a signal strength value according to the pressure signal and the acceleration signal;

[0031] determining whether the signal strength value meets the preset ignition condition corresponding to the impact area;

[0032] After the step of determining whether the signal strength value meets the preset ignition condition corresponding to the impact area, the method further comprises:

[0033] when the signal strength value does not meet the preset ignition condition corresponding to the impact area, performing pedestrian protection active hood non-ignition control according to the collision signal and the vehicle collision information.

[0034] In addition, to achieve the above object, the present application further provides a pedestrian protection active hood ignition control system, which comprises:

[0035] a receiving module configured to determine an impact area according to a collision signal when the collision signal is received, the impact area comprising a grille lamp area and a non-grille lamp area;

[0036] a determining module configured to determine vehicle collision information according to the collision signal and the impact area;

[0037] a judging module configured to determine whether the collision signal meets a preset ignition condition corresponding to the impact area when the vehicle collision information is pedestrian collision;

[0038] a control module configured to perform pedestrian protection active hood ignition control according to the collision signal and the vehicle collision information when the collision signal meets the preset ignition condition.

[0039] In addition, to achieve the above object, the present application further provides a pedestrian protection active hood ignition control device, which comprises a memory, a processor, and a pedestrian protection active hood ignition control program stored in the memory and executable on the processor, the pedestrian protection active hood ignition control program being configured to implement the steps of the pedestrian protection active hood ignition control method as described above.

[0040] In addition, in order to achieve the above object, the application further provides a storage medium, wherein the storage medium stores a pedestrian protection active hood ignition control program, and the pedestrian protection active hood ignition control program realizes the steps of the pedestrian protection active hood ignition control method when executed by a processor.

[0041] When the collision signal is received, the impact area is determined according to the collision signal, the impact area includes the grating lamp area and the non-grating lamp area, then the vehicle collision information is determined according to the collision signal and the impact area, when the vehicle collision information is the pedestrian collision, it is judged whether the collision signal meets the preset ignition condition of the impact area, when the collision signal meets the preset ignition condition of the impact area, then the pedestrian protection active hood ignition control is performed according to the collision signal and the vehicle collision information. In the prior art, the impact position cannot be identified, and the same speed impact at different positions can only set the same ignition threshold. The impact area is identified according to the collision signal, and then the pedestrian protection active hood ignition control is performed according to the preset ignition condition of the impact area, so that the problems of no explosion and false explosion are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 is a structural schematic diagram of a pedestrian protection active hood ignition control device related to a hardware running environment of an embodiment scheme of the application;

[0043] Figure 2 is a flowchart of a pedestrian protection active hood ignition control method first embodiment of the application;

[0044] Figure 3 is a regional collision ignition threshold curve diagram of the pedestrian protection active hood ignition control method first embodiment of the application;

[0045] Figure 4 is a flowchart of a pedestrian protection active hood ignition control method second embodiment of the application;

[0046] Figure 5 is a structural block diagram of a pedestrian protection active hood ignition control system first embodiment of the application.

[0047] The implementation of the object, functional characteristics and advantages of the application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0048] It should be understood that the specific embodiments described herein are only used to explain the application and not to limit the application.

[0049] REFERENCE Figure 1 , Figure 1 is a structural schematic diagram of a pedestrian protection active hood ignition control device related to a hardware running environment of an embodiment scheme of the application;

[0050] As Figure 1 shown, the pedestrian protection active hood ignition control device can include a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to realize the connection communication between the components. The user interface 1003 can include a display, an input unit such as a keyboard, and can also include a standard wired interface, a wireless interface. The network interface 1004 can optionally include a standard wired interface, a wireless interface (such as a wireless fidelity (Wi-Fi) interface). The memory 1005 can be a high-speed random access memory (RAM), and can also be a stable non-volatile memory (NVM), such as a disk memory. The memory 1005 can also be an independent storage system from the aforementioned processor 1001.

[0051] Those skilled in the art can understand that Figure 1 the structure shown in the above description does not constitute a limitation on the pedestrian protection active hood ignition control device, and can include more or fewer components than the illustrated components, or combine certain components, or different component arrangements.

[0052] As Figure 1 shown, the memory 1005 as a storage medium can include an operating system, a network communication module, a user interface module, and a pedestrian protection active hood ignition control program.

[0053] In Figure 1 the pedestrian protection active hood ignition control device, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the pedestrian protection active hood ignition control device can be arranged in the pedestrian protection active hood ignition control device, and the pedestrian protection active hood ignition control device calls the pedestrian protection active hood ignition control program stored in the memory 1005 through the processor 1001, and executes the pedestrian protection active hood ignition control method provided by the embodiment of the present application.

[0054] The embodiment of the present application provides a pedestrian protection active hood ignition control method, which refers to Figure 2 , Figure 2 the flowchart of the first embodiment of the pedestrian protection active hood ignition control method of the present application.

[0055] The pedestrian protection active hood ignition control method in the embodiment comprises the following steps:

[0056] Step S10: Upon receiving the collision signal, determine the impact area according to the collision signal, wherein the impact area comprises a grille lamp area and a non-grille lamp area.

[0057] It is easy to understand that the execution subject of the embodiment can be a pedestrian protection active hood ignition control device with functions of data processing, network communication, program running, etc., or other computer devices with similar functions, and the embodiment is not limited thereto.

[0058] It should be noted that the airbag controller (ACU) in the vehicle receives the pressure signal of the pedestrian protection pressure tube sensor, the acceleration signal of the pedestrian protection acceleration sensor, and the impact area signal corresponding to the camera, and performs a series of ignition logic algorithm calculation according to the pressure signal, the acceleration signal, and the impact area signal, and outputs the ignition instruction and the ignition current to the active hood. The pedestrian protection pressure tube sensor is a tubular air pressure sensor arranged between the front bumper energy-absorbing block and the bumper beam, which can sense and output the pressure signal; the pedestrian protection acceleration sensor is arranged on the front bumper skin, which can sense and output the acceleration signal; the camera inputs to the airbag controller, which is used for area identification; the active hood is a hood with a top support that can be lifted, and the top support lifts the hood after ignition.

[0059] It should also be understood that a camera is arranged at the center of the top end of the vehicle, and the camera is calibrated in real vehicle through experiments to ensure the accuracy of the area identification of the camera. The ACU receives the area identification signal of the camera, and accurately sets the ignition threshold according to the signal for different impact areas, thereby realizing the accurate control of different areas.

[0060] Further, before determining the impact area according to the collision signal upon receiving the collision signal, the pressure signal corresponding to the row protection pressure tube sensor, the acceleration signal corresponding to the row protection acceleration sensor, and the impact area signal corresponding to the camera are also needed, and then the collision signal is generated according to the pressure signal, the acceleration signal, and the impact area signal.

[0061] When the ACU identifies a sensor or camera failure, it also needs to light up the airbag warning light, etc.

[0062] The collision signal comprises the pressure signal, the acceleration signal, and the impact area signal, and then the collision signal needs to be sent to the airbag controller for processing, etc.

[0063] It should also be noted that the front section of the vehicle is divided into two areas in advance, namely the grille lamp area and the non-grille lamp area.

[0064] Further, the processing manner for determining the impact area according to the collision signal is extracting an impact area signal from the collision signal, and then determining the impact area according to the impact area signal, judging whether the impact area is in the first preset area, and determining the impact area as the grating lamp area when the impact area is in the first preset area; and judging whether the impact area is in the second preset area when the impact area is not in the first preset area, and determining the impact area as the non-grating lamp area if yes.

[0065] The impact area being in the first preset area can be understood as the impact area being completely in the first preset area, and the first preset area being the grating lamp area; and the impact area being in the second preset area can be understood as the impact area being completely in the second preset area, and the second preset area being the non-grating lamp area.

[0066] It should also be understood that when the impact area is not in the first preset area or the second preset area, it is judged whether the impact area is in the third preset area, and when the impact area is in the third preset area, the proportion of the impact area in the grating area corresponding to the grating area and the proportion of the impact area in the non-grating area are determined, and the impact area is determined as the grating area when the proportion of the grating area is greater than or equal to the proportion of the non-grating area, and the impact area is determined as the non-grating area when the proportion of the grating area is less than the proportion of the non-grating area.

[0067] It should be noted that the third preset area includes part of the first preset area and part of the second preset area, and the third preset area includes the boundary line between the grating area and the non-grating area.

[0068] In the present embodiment, when the impact object is completely located in the grating lamp area, the camera determines and sends that the impact area is the grating area A; when the impact object is completely located in the non-grating lamp area, the camera determines and sends that the impact area is the non-grating lamp area B; when the impact object is not identified, the camera determines and sends that no target is found; and when the impact object appears at the boundary of the A area and the B area, the proportion of the width of the object in the A area and the B area is judged, and if the proportion of the A area is high, it is judged and sent that the impact area is the A area, and if the proportion of the B area is high, it is judged and sent that the impact area is the B area, etc.

[0069] Step S20: determining vehicle collision information according to the collision signal and the impact area.

[0070] In the present embodiment, the vehicle collision information can be pedestrian collision, and can also be animal collision, and the processing flow of the pedestrian collision and the processing flow of the animal collision are consistent.

[0071] In specific implementation, the vehicle collision information can be identified according to the pressure signal, the acceleration signal and the impact area signal.

[0072] Further, the ACU performs pedestrian protection active hood non-ignition control according to the collision signal and the vehicle collision information when detecting that the vehicle collision information is a non-living collision.

[0073] Step S30: When the vehicle collision information is a pedestrian collision, it is determined whether the collision signal meets the preset ignition condition corresponding to the impact area.

[0074] It should be noted that the impact area is different, and the preset ignition condition corresponding to the impact area is also different. For reference Figure 3 , Figure 3 The area collision ignition threshold curve diagram of the first embodiment of the pedestrian protection active hood ignition control method of the application is shown in the figure. The preset ignition condition corresponding to the grid area is that the signal strength value corresponding to the collision signal is less than or equal to the preset threshold value. The preset ignition condition corresponding to the non-grid area is that the signal strength value corresponding to the collision signal is greater than the preset threshold value.

[0075] Further, when the vehicle collision information is a pedestrian collision, the processing mode of determining whether the collision signal meets the preset ignition condition corresponding to the impact area is that when the vehicle collision information is a pedestrian collision or an animal collision, the pressure signal and the acceleration signal are extracted from the collision signal, the signal strength value is generated according to the pressure signal and the acceleration signal, and it is determined whether the signal strength value meets the preset ignition condition corresponding to the impact area.

[0076] Step S40: When the collision signal meets the preset ignition condition corresponding to the impact area, pedestrian protection active hood ignition control is performed according to the collision signal and the vehicle collision information.

[0077] It should also be noted that when the collision signal does not meet the preset ignition condition corresponding to the impact area, pedestrian protection active hood non-ignition control is performed according to the collision signal and the vehicle collision information.

[0078] In this embodiment, when the collision signal is received, the impact area is first determined according to the collision signal, the impact area includes the grid lamp area and the non-grid lamp area, then the vehicle collision information is determined according to the collision signal and the impact area, when the vehicle collision information is a pedestrian collision, it is determined whether the collision signal meets the preset ignition condition of the impact area, and when the collision signal meets the preset ignition condition of the impact area, pedestrian protection active hood ignition control is then performed according to the collision signal and the vehicle collision information. In the prior art, the impact position cannot be identified, and the same speed of different positions of impact can only set the same ignition threshold. In this embodiment, the impact area is identified according to the collision signal, and then the pedestrian protection active hood ignition control is performed according to the preset ignition condition of the impact area, so as to avoid the problems of impact non-explosion and false explosion.

[0079] For reference Figure 4 ,Figure 4 Flowchart of the second embodiment of the pedestrian protection active hood ignition control method of the present application.

[0080] Based on the first embodiment, in the present embodiment, the step S10 further comprises:

[0081] Step S101: Upon receiving the collision signal, extracting the impact area signal from the collision signal.

[0082] In the present embodiment, the vehicle collision information can be pedestrian collision, and can also be animal collision, wherein the processing flow of pedestrian collision is consistent with that of animal collision.

[0083] The collision signal includes pressure signal, acceleration signal and impact area signal, and then needs to be sent to the airbag controller for processing, etc.

[0084] Step S102: determining the impact area according to the impact area signal.

[0085] It should be noted that the front section of the vehicle is divided into two areas, namely the grille lamp area and the non-grille lamp area. The ACU can identify the impact area according to the impact area signal.

[0086] Step S103: determining whether the impact area is in the first preset area.

[0087] It can be understood that the first preset area is the grille lamp area.

[0088] Step S104: when the impact area is in the first preset area, determining that the impact area is the grille lamp area.

[0089] In a specific implementation, the impact area being in the first preset area can be understood as the impact area being completely in the first preset area, and then determining that the impact area is the grille lamp area.

[0090] Step S105: when the impact area is not in the first preset area, determining whether the impact area is in the second preset area.

[0091] The impact area being in the second preset area can be understood as the impact area being completely in the second preset area, and the second preset area is the non-grille lamp area.

[0092] Step S106: if yes, determining that the impact area is the non-grille lamp area.

[0093] It should also be understood that when the impact area is not in the first preset area or the second preset area, it is judged whether the impact area is in the third preset area, when the impact area is in the third preset area, it is determined that the impact area is in the grid area corresponding to the grid area ratio and the impact area is in the non-grid area ratio, when the grid area ratio is greater than or equal to the non-grid area ratio, the impact area is the grid area, and when the grid area ratio is less than the non-grid area ratio, the impact area is the non-grid area.

[0094] It should be noted that the third preset area includes part of the first preset area and part of the second preset area, wherein the third preset area includes the boundary line of the grid area and the non-grid area.

[0095] In the present embodiment, when the impact object is completely located in the grid lamp area, the camera determines and sends that the impact area is the grid area A; when the impact object is completely located in the non-grid lamp area, the camera determines and sends that the impact area is the non-grid lamp area B; when the impact object is not identified, the camera determines and sends that no target is found; when the impact object appears at the boundary of A and B, the width of the object in A and B is judged, if A is high, it is judged and sent that the impact area is A, if B is high, it is judged and sent that the impact area is B, etc.

[0096] In the present embodiment, when the impact signal is received, the impact area signal is extracted from the impact signal, and then the impact area is determined according to the impact area signal, it is judged whether the impact area is in the first preset area, when the impact area is in the first preset area, it is determined that the impact area is the grid lamp area; when the impact area is not in the first preset area, it is judged whether the impact area is in the second preset area, if yes, it is determined that the impact area is the non-grid lamp area, the impact area is not divided in the prior art, and the impact area signal collected by the camera is used to accurately set the ignition threshold of different impact areas in the present embodiment, thereby realizing regional accurate control.

[0097] Referring to Figure 5 , Figure 5 The structure block diagram of the first embodiment of the pedestrian protection active hood ignition control system of the present application is shown in the figure.

[0098] As Figure 5 shown, the pedestrian protection active hood ignition control system of the present application comprises:

[0099] The receiving module 5001 is used for determining the impact area according to the impact signal when the impact signal is received, and the impact area includes the grid lamp area and the non-grid lamp area.

[0100] It should be noted that the airbag controller (ACU) in the vehicle receives the pressure signal of the pedestrian protection pressure tube sensor, the acceleration signal of the pedestrian protection acceleration sensor and the impact area signal corresponding to the camera, and performs a series of ignition logic algorithm calculation according to the pressure signal, the acceleration signal and the impact area signal, and outputs the ignition instruction and the ignition current to the active hood. The pedestrian protection pressure tube sensor is a tubular air pressure sensor arranged between the front bumper energy absorption block and the bumper beam, which can sense and output the pressure signal; the pedestrian protection acceleration sensor is arranged on the front bumper skin, which can sense and output the acceleration signal; the camera inputs to the airbag controller, which is used for area identification; the active hood is a hood with a top support that can be lifted after the top support is ignited.

[0101] It should also be understood that a camera is arranged at the center of the top end of the vehicle, which is calibrated by test in the real vehicle to ensure the accuracy of the area identification of the camera. The ACU receives the area identification signal of the camera, and accurately sets the ignition threshold according to the signal for different impact areas, so as to realize the accurate control of different areas.

[0102] Further, before determining the impact area according to the collision signal, the pressure signal corresponding to the row protection pressure tube sensor, the acceleration signal corresponding to the row protection acceleration sensor and the impact area signal corresponding to the camera are also needed to be obtained, and then the collision signal is generated according to the pressure signal, the acceleration signal and the impact area signal.

[0103] When the ACU identifies the failure of the sensor or the camera, it also needs to light up the airbag warning light and the like.

[0104] The collision signal includes the pressure signal, the acceleration signal and the impact area signal, and then the collision signal needs to be sent to the airbag controller for processing and the like.

[0105] It should be noted that the front section of the vehicle is divided into two areas in advance, which are the grille lamp area and the non-grille lamp area.

[0106] Further, the processing method for determining the impact area according to the collision signal is to extract the impact area signal from the collision signal, and then determine the impact area according to the impact area signal, judge whether the impact area is in the first preset area, if the impact area is in the first preset area, determine that the impact area is the grille lamp area; if the impact area is not in the first preset area, judge whether the impact area is in the second preset area, if yes, determine that the impact area is the non-grille lamp area.

[0107] The impact area being in the first preset area can be understood as the impact area being completely in the first preset area, and the first preset area is the grid lamp area. The impact area being in the second preset area can be understood as the impact area being completely in the second preset area, and the second preset area is the non-grid lamp area.

[0108] It should also be understood that when the impact area is not in the first preset area or the second preset area, it is determined whether the impact area is in the third preset area. When the impact area is in the third preset area, it is determined that the impact area is in the grid area corresponding to the grid area ratio and the impact area is in the non-grid area ratio. When the grid area ratio is greater than or equal to the non-grid area ratio, the impact area is the grid area. When the grid area ratio is less than the non-grid area ratio, the impact area is the non-grid area.

[0109] It should be noted that the third preset area includes part of the first preset area and part of the second preset area, and the third preset area includes the boundary line between the grid area and the non-grid area.

[0110] In the embodiment, when the impact object is completely located in the grid lamp area, the camera determines and sends that the impact area is the grid area A. When the impact object is completely located in the non-grid lamp area, the camera determines and sends that the impact area is the non-grid lamp area B. When the impact object is not identified, the camera determines and sends that no target is found. When the impact object appears at the boundary between the A area and the B area, the width of the object in the A area and the B area is determined, and if the A area ratio is high, it is determined and sent that the impact area is the A area. If the B area ratio is high, it is determined and sent that the impact area is the B area, and so on.

[0111] The determination module 5002 is configured to determine vehicle collision information according to the collision signal and the impact area.

[0112] In the embodiment, the vehicle collision information can be pedestrian collision, and can also be animal collision. The processing flow of the pedestrian collision is consistent with the processing flow of the animal collision.

[0113] Further, when the ACU detects that the vehicle collision information is non-living collision, the ACU performs pedestrian protection active hood no-fire control according to the collision signal and the vehicle collision information.

[0114] In a specific implementation, the vehicle collision information can be identified according to the pressure signal, the acceleration signal, and the impact area signal.

[0115] The determination module 5003 is configured to determine whether the collision signal satisfies a preset ignition condition corresponding to the impact area when the vehicle collision information is pedestrian collision.

[0116] It should be noted that the impact area is different, and the preset ignition condition corresponding to the impact area is also different, for example Figure 3 , Figure 3 The area collision ignition threshold curve diagram of the pedestrian protection active hood ignition control method of the first embodiment of the application is shown in the figure. The preset ignition condition corresponding to the grid area is that the signal strength value corresponding to the collision signal is less than or equal to the preset threshold value. The preset ignition condition corresponding to the non-grid area is that the signal strength value corresponding to the collision signal is greater than the preset threshold value.

[0117] Further, when the vehicle collision information is a pedestrian collision, the processing manner of judging whether the collision signal meets the preset ignition condition corresponding to the impact area is that when the vehicle collision information is a pedestrian collision or an animal collision, the pressure signal and the acceleration signal are extracted from the collision signal, the signal strength value is generated according to the pressure signal and the acceleration signal, and it is judged whether the signal strength value meets the preset ignition condition corresponding to the impact area.

[0118] The control module 5004 is configured to perform pedestrian protection active hood ignition control according to the collision signal and the vehicle collision information when the collision signal meets the preset ignition condition corresponding to the impact area.

[0119] It should be further noted that when the collision signal does not meet the preset ignition condition corresponding to the impact area, the pedestrian protection active hood non-ignition control is performed according to the collision signal and the vehicle collision information.

[0120] In this embodiment, when the collision signal is received, the impact area is first determined according to the collision signal, the impact area includes the grid lamp area and the non-grid lamp area, then the vehicle collision information is determined according to the collision signal and the impact area, when the vehicle collision information is a pedestrian collision, it is judged whether the collision signal meets the preset ignition condition of the impact area, when the collision signal meets the preset ignition condition of the impact area, then the pedestrian protection active hood ignition control is performed according to the collision signal and the vehicle collision information. In the prior art, the impact position cannot be identified, and the same speed of different positions of impact can only set the same ignition threshold. In this embodiment, the impact area is identified according to the collision signal, and then the pedestrian protection active hood ignition control is performed according to the preset ignition condition of the impact area, so as to avoid the problems of impact non-explosion and false explosion.

[0121] Other embodiments or specific implementation manners of the pedestrian protection active hood ignition control system of the application can refer to the above-mentioned method embodiments, which will not be described here.

[0122] It should be noted that, in this document, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0123] The above-mentioned embodiment numbers of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0124] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be realized by means of software and the necessary general hardware platform, of course, they can also be realized by hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory / random access memory, a magnetic disk, or an optical disk) and includes a number of instructions for making a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) execute the methods described in the various embodiments of the present application.

[0125] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A pedestrian protection active hood ignition control method, characterized by, The pedestrian protection active hood ignition control method comprises the following steps: Upon receiving a collision signal, determining a collision area according to the collision signal, the collision area comprising a grille light area and a non-grille light area; Determining vehicle collision information according to the collision signal and the collision area; When the vehicle collision information is a pedestrian collision, determining whether the collision signal meets a preset ignition condition corresponding to the collision area; When the collision signal meets the preset ignition condition corresponding to the collision area, performing pedestrian protection active hood ignition control according to the collision signal and the vehicle collision information; Before the step of determining the collision area according to the collision signal upon receiving the collision signal, the method further comprises the following steps: Obtaining a pressure signal corresponding to a pedestrian protection pressure pipe sensor, an acceleration signal corresponding to a pedestrian protection acceleration sensor, and a collision area signal corresponding to a camera; Generating a collision signal according to the pressure signal, the acceleration signal, and the collision area signal; The step of determining the collision area according to the collision signal comprises the following steps: Extracting a collision area signal from the collision signal; Determining the collision area according to the collision area signal; Determining whether the collision area is within a first preset area; When the collision area is within the first preset area, determining that the collision area is a grille light area; After the step of determining whether the collision area is within the first preset area, the method further comprises the following steps: When the collision area is not within the first preset area, determining whether the collision area is within a second preset area; If yes, determining that the collision area is a non-grille light area; After the step of determining whether the collision area is within the second preset area, the method further comprises the following steps: When the collision area is not within the second preset area, determining whether the collision area is within a third preset area; When the collision area is within the third preset area, determining a grille light area proportion value corresponding to the grille light area and a non-grille light area proportion value corresponding to the non-grille light area; When the grille light area proportion value is greater than or equal to the non-grille light area proportion value, the collision area is a grille light area; When the grille light area proportion value is less than the non-grille light area proportion value, the collision area is a non-grille light area.

2. The method of claim 1, wherein, After the step of determining vehicle collision information according to the collision signal and the collision area, the method further comprises the following step: When the vehicle collision information is an inanimate collision, performing pedestrian protection active hood non-ignition control according to the collision signal and the vehicle collision information.

3. The method of claim 1, wherein, The step of determining whether the collision signal meets the preset ignition condition corresponding to the collision area comprises the following steps: Extracting a pressure signal and an acceleration signal from the collision signal; Generating a signal strength value according to the pressure signal and the acceleration signal; Determining whether the signal strength value meets the preset ignition condition corresponding to the collision area; After the step of determining whether the signal strength value meets the preset ignition condition corresponding to the collision area, the method further comprises the following steps: When the signal strength value does not satisfy the preset ignition condition corresponding to the impact area, the pedestrian protection active hood non-ignition control is performed according to the collision signal and the vehicle collision information.

4. A pedestrian protection active hood ignition control system characterized by, The pedestrian protection active hood ignition control system comprises: a receiving module configured to determine an impact area according to a collision signal when the collision signal is received, the impact area comprising a grille lamp area and a non-grille lamp area; a determining module configured to determine vehicle collision information according to the collision signal and the impact area; a judging module configured to judge whether the collision signal satisfies a preset ignition condition corresponding to the impact area when the vehicle collision information is a pedestrian collision; a control module configured to perform pedestrian protection active hood ignition control according to the collision signal and the vehicle collision information when the collision signal satisfies the preset ignition condition; The pedestrian protection active hood ignition control system is configured to implement the steps of the pedestrian protection active hood ignition control method according to any one of claims 1 to 3.

5. A pedestrian protection active hood ignition control device characterized by, The device comprises a memory, a processor, and a pedestrian protection active hood ignition control program stored on the memory and executable on the processor, the pedestrian protection active hood ignition control program being configured to implement the steps of the pedestrian protection active hood ignition control method according to any one of claims 1 to 3.

6. A medium characterized by, The medium stores a pedestrian protection active hood ignition control program, and the pedestrian protection active hood ignition control program implements the steps of the pedestrian protection active hood ignition control method according to any one of claims 1 to 3 when executed by a processor.

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