Vehicle collision working condition detection method, device and equipment and storage medium

Abstract

The invention discloses a vehicle collision working condition detection method, device and equipment and a storage medium, and relates to the technical field of vehicle rear collision tests.The vehicle collision working condition detection method comprises the steps that when a vehicle is in a parking braking state, vehicle wheel speed information is obtained; determining the current working condition of the vehicle according to the wheel speed information of the vehicle; and according to the current working condition of the vehicle and the vehicle wheel speed information, vehicle collision working condition detection is carried out. Compared with the existing vehicle collision working condition detection, the method does not need the participation of a safety control unit of the vehicle, does not need to add a collision calibration test and safety control unit calibration, can meet the requirement of depending on a collision electronic system architecture only based on the existing vehicle system architecture and software updating, and improves the detection efficiency. And the vehicle collision working condition can be detected according to the obtained information of the vehicle, so that the detection efficiency is improved while the detection cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle rear-end collision testing, and in particular to a vehicle collision condition detection method, device, equipment and storage medium. Background Art

[0002] The regulations on passenger car rear collision safety requirements have added requirements for unlocking the doors and triggering the double flash after a collision, that is, after the vehicle undergoes a collision test, the vehicle should automatically turn on the hazard warning lights (double flash). This requirement is to promptly alert other road users after a collision to improve safety. Therefore, turning on the hazard warning lights after a collision test is a necessary safety measure.

[0003] The current method of triggering the automatic activation of the hazard lights after a rear-end collision mainly relies on the collision electronic system architecture and system calibration. It requires the calibration of the safety control unit on the vehicle and a rear-end collision calibration test, resulting in a long development cycle and high costs. Summary of the invention

[0004] The main purpose of the present application is to provide a vehicle collision condition detection method, device, equipment and storage medium, aiming to solve the current technical problems of high cost and low efficiency of vehicle collision condition detection.

[0005] To achieve the above objectives, the present application proposes a vehicle collision condition detection method, the vehicle collision condition detection method comprising:

[0006] When the vehicle is in a parking brake state, obtaining vehicle wheel speed information;

[0007] Determining the current working condition of the vehicle according to the vehicle wheel speed information;

[0008] The vehicle collision condition detection is performed according to the current working condition of the vehicle and the vehicle wheel speed information.

[0009] In one embodiment, the step of detecting the vehicle collision condition according to the current working condition of the vehicle and the vehicle wheel speed information includes:

[0010] When the current working condition of the vehicle is a preset dangerous working condition, comparing whether the vehicle wheel speed information is greater than a preset threshold;

[0011] When the vehicle wheel speed information is greater than the preset threshold, a vehicle collision condition detection is performed on the vehicle.

[0012] In one embodiment, the step of detecting the vehicle collision condition according to the current working condition of the vehicle and the vehicle wheel speed information includes:

[0013] When the current working condition of the vehicle is a preset dangerous working condition, obtaining a current speed value according to the wheel speed information of the vehicle;

[0014] When the current speed value is greater than a first preset speed threshold, obtaining the current gear position and door status of the vehicle;

[0015] Vehicle collision condition detection is performed according to the current gear position and the door state.

[0016] In one embodiment, the step of detecting the vehicle collision condition according to the current gear position and the door state includes:

[0017] When the current gear position is neutral, detecting whether the door state is closed;

[0018] When the vehicle door is in a closed state, it is determined that the vehicle enters a rear-end collision condition.

[0019] In one embodiment, the step of determining the current working condition of the vehicle according to the vehicle wheel speed information comprises:

[0020] Obtaining a current speed value according to the vehicle wheel speed information;

[0021] When the current speed value is greater than the second preset speed threshold, it is determined that the current operating condition of the vehicle is a preset dangerous operating condition, and the first preset speed threshold is greater than the second preset speed threshold.

[0022] In one embodiment, the method further comprises:

[0023] When the current operating condition of the vehicle is a preset dangerous operating condition, generating a double flash light activation instruction;

[0024] The double flash lights of the vehicle are controlled to light up based on the double flash lights on instruction.

[0025] In one embodiment, after the step of detecting the vehicle collision condition according to the current working condition of the vehicle and the vehicle wheel speed information, the method further includes:

[0026] When the vehicle is detected to be in a rear-end collision condition, a door unlocking command is generated;

[0027] The door unlocking of the vehicle is controlled based on the door unlocking instruction.

[0028] In addition, to achieve the above-mentioned purpose, the present application also proposes a vehicle collision condition detection device, the vehicle collision condition detection device comprising:

[0029] An acquisition module, used to acquire vehicle wheel speed information when the vehicle is in a parking brake state;

[0030] A determination module, used to determine the current working condition of the vehicle according to the vehicle wheel speed information;

[0031] The detection module is used to detect the vehicle collision condition according to the current working condition of the vehicle and the vehicle wheel speed information.

[0032] In addition, to achieve the above-mentioned purpose, the present application also proposes a vehicle collision condition detection device, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, and the computer program is configured to implement the steps of the vehicle collision condition detection method as described above.

[0033] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the vehicle collision condition detection method described above are implemented.

[0034] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, the steps of the vehicle collision condition detection method described above are implemented.

[0035] One or more technical solutions proposed in this application are to obtain vehicle wheel speed information when the vehicle is in a parking brake state; determine the current working condition of the vehicle based on the vehicle wheel speed information; and perform vehicle collision condition detection based on the current working condition of the vehicle and the vehicle wheel speed information. Compared with existing vehicle collision condition detection, this application does not require the participation of the vehicle's safety control unit, nor does it require additional collision calibration tests and safety control unit calibration. It can meet the requirements based only on the existing vehicle system architecture and software updates. It relies on the collision electronic system architecture, and can perform vehicle collision condition detection based on the acquired vehicle information, which reduces detection costs while also improving detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0037] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0038] Figure 1 A schematic diagram of a process flow provided for the first embodiment of the vehicle collision condition detection method of the present application;

[0039] Figure 2 This is a schematic diagram of a vehicle speed curve formed by extracting wheel speeds of different vehicle models in an embodiment of the vehicle collision condition detection method of the present application;

[0040] Figure 3 A schematic diagram of vehicle speed changes of the left and right vehicle speeds of a first vehicle type in an embodiment of a vehicle collision condition detection method of the present application;

[0041] Figure 4 A schematic diagram of a flow chart provided for the second embodiment of the vehicle collision condition detection method of the present application;

[0042] Figure 5 A schematic diagram of the system architecture of the vehicle collision condition detection method of this application;

[0043] Figure 6 This is a brief flowchart of an embodiment of a vehicle collision condition detection method of the present application;

[0044] Figure 7 This is a schematic diagram of the module structure of a vehicle collision condition detection device according to an embodiment of the present application;

[0045] Figure 8 Schematic diagram of the device structure of the hardware operating environment involved in the vehicle collision condition detection method in the embodiment of the present application.

[0046] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0047] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0048] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0049] The main solution of the embodiment of the present application is: when the vehicle is in a parking brake state, obtaining the vehicle wheel speed information; determining the current working condition of the vehicle based on the vehicle wheel speed information; and performing vehicle collision condition detection based on the current working condition of the vehicle and the vehicle wheel speed information.

[0050] Since the existing technology mainly relies on the calibrated safety control unit to realize collision perception and transmit the signal to the BCM to trigger the double flash and unlock the door, specifically: after the vehicle detects a collision, the collision sensor will collect the body signal and transmit it to the ACU (Airbag Control Unit, safety control unit), the ACU processes the signal to determine whether a collision has occurred, if it is determined that a collision has occurred, it will send a collision signal to the body control module (Body Control Module, BCM); after receiving the collision signal from the ACU, the BCM activates the double flash light control circuit to realize the double flash and unlocking.

[0051] When developing a new car, the ACU calibration process is as follows: obtain the body waveform of the rear-end collision vehicle (i.e. the rear end of the vehicle is hit) through VC real-car experiments; calculate the RTTF (Required Time To Fire) to calibrate the ACU (ACU sets a threshold line based on waveform characteristics, and sends a signal to trigger the double flash when the vehicle waveform reaches the threshold line); finally load it to the actual vehicle for verification; after verification is OK, flash the ACU program; import the ACU that has been flashed OK into the actual vehicle, and perform vehicle collision condition detection through ACU calibration. The development cycle is long and the cost is high.

[0052] The present application provides a solution, which comprehensively judges whether the vehicle has a rear-end collision through information such as gear information, parking brake status, door closing information and vehicle wheel speed information. If a rear-end collision occurs, the corresponding function is triggered. There is no need to conduct collision calibration tests and ACU calibration. The vehicle collision condition detection is directly performed by confirming the vehicle status.

[0053] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, a vehicle collision condition detection device, etc. The following takes the vehicle collision condition detection device as an example to illustrate this embodiment and the following embodiments.

[0054] Based on this, the present application embodiment provides a vehicle collision condition detection method, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the vehicle collision condition detection method of the present application.

[0055] In this embodiment, the vehicle collision condition detection method includes steps S10 to S30:

[0056] Step S10: When the vehicle is in a parking brake state, obtain the vehicle wheel speed information.

[0057] It should be noted that the application scenario of this embodiment is mainly a legal inspection collision test scenario. Before the vehicle goes online, it needs to meet some new regulatory requirements for passenger cars. The new regulations currently require the addition of door unlocking and triggering of double flashes after a vehicle collision. The existing technology mainly conducts relevant calibration tests during vehicle development, and the development cycle is relatively long.

[0058] In this embodiment, based on the existing electronic architecture of the vehicle, relevant information of the vehicle can be collected through basic vehicle sensors to determine whether a collision condition occurs, and the vehicle collision condition can be quickly detected.

[0059] In a specific implementation, the process of determining that the vehicle is in a braking state may include: detecting an ignition switch signal of the vehicle, monitoring the state of the parking brake when the ignition switch signal is on, and determining that the vehicle is in a parking brake state when it is monitored that the state of the parking brake is a braking state.

[0060] It is understandable that if the vehicle is not in the parking brake state, the subsequent process is not performed, and the state of the vehicle parking brake continues to be monitored. The state of the parking brake can be determined by the parking brake handle or pedal or the electronic parking brake, for example, the parking brake handle is pulled up or the pedal is stepped on or the electronic parking brake function is activated, which means that the parking brake is in the braking state.

[0061] It should be understood that the vehicle wheel speed information may include information such as the wheel rotation speed and the wheel angular velocity, and one or more of the vehicle's driving speed, acceleration and driving distance may be calculated from the vehicle wheel speed information.

[0062] In a specific implementation, the vehicle wheel speed information may be detected by a wheel speed sensor disposed on the vehicle.

[0063] Step S20: Determine the current working condition of the vehicle according to the vehicle wheel speed information.

[0064] It should be noted that the current operating condition of the vehicle may include the vehicle being in a preset dangerous operating condition or the vehicle not being in a preset dangerous operating condition, and may also include other operating conditions, which are not limited in this embodiment.

[0065] It should be understood that during the vehicle collision test, the wheels will rotate at a certain speed, so the current working condition of the vehicle can be determined by detecting the wheel speed. Figure 2 As shown, Figure 2 The schematic diagram of the vehicle speed curve formed by wheel speed extraction for different vehicle models includes the right vehicle speed of the first vehicle model, the right vehicle speed of the second vehicle model, and the right vehicle speed of the third vehicle model. Different vehicle speed data can be obtained at different positions.

[0066] In a feasible implementation, step S20 may include steps S21 to S22:

[0067] Step S21: obtaining a current speed value according to the vehicle wheel speed information.

[0068] It should be noted that the current speed value of the vehicle can be calculated through the vehicle wheel speed information, and the current acceleration value and moving distance of the vehicle can also be obtained according to the vehicle wheel speed information.

[0069] Step S22: When the current speed value is greater than a second preset speed threshold, it is determined that the current operating condition of the vehicle is a preset dangerous operating condition, and the first preset speed threshold is greater than the second preset speed threshold.

[0070] It should be noted that the second preset speed threshold may be set to the vehicle speed threshold of 5 km / h.

[0071] During the vehicle collision test, the vehicle speed will rise to a high level, such as Figure 3 As shown, Figure 3 Schematic diagram of vehicle speed change of the left and right sides of the first vehicle model, for example, the vehicle mass is m1, the vehicle speed v1 is initially 0, the barrier (simulating an obstacle that the vehicle may encounter in an actual traffic accident) mass m2 = 1400 kg, the barrier speed is 50 km / h, based on the momentum theorem m1*V1+m2*V2 = (m1+m2)*V', V' = (m1*V1+m2*V2) / (m1+m2), it can be obtained that the maximum vehicle speed V' is approximately in the range of 17 to 27 km / h, it can be seen that the threshold value of the vehicle speed is less than the maximum vehicle speed, proving that the vehicle collision condition detection process of this embodiment can be triggered.

[0072] The first preset speed threshold can be set to 10km / h, and the first preset speed threshold and the second preset speed threshold can be set according to the rules and vehicle models. The preset dangerous working condition is a dangerous working condition in which the vehicle may collide. When the current speed value of the vehicle is greater than the set second preset speed threshold, it is determined that the current working condition of the vehicle is a preset dangerous working condition. When the current speed value of the vehicle is less than or equal to the second preset speed threshold, it is proved that the current working condition of the vehicle is not a preset dangerous working condition.

[0073] Step S30: performing vehicle collision condition detection according to the current working condition of the vehicle and the vehicle wheel speed information.

[0074] In a specific implementation, a collision condition detection may be performed on the vehicle according to the current working condition of the vehicle and the wheel speed information of the vehicle. The collision condition detection may specifically be a rear-end collision condition detection of the vehicle.

[0075] In a feasible manner, the vehicle wheel speed information may include multiple types of information, so corresponding thresholds may be set to perform collision condition detection on the vehicle based on the comparison results. Therefore, step S30 may include: when the current operating condition of the vehicle is a preset dangerous condition, comparing whether the vehicle wheel speed information is greater than a preset threshold; when the vehicle wheel speed information is greater than the preset threshold, performing vehicle collision condition detection on the vehicle.

[0076] It should be noted that when the vehicle's current operating condition is a preset dangerous condition, the next step of judgment can be made based on the vehicle's wheel speed information to further confirm whether the vehicle has collided. Therefore, the vehicle's wheel speed information can be compared with the preset threshold to determine whether it is necessary to perform a collision condition detection on the vehicle. The vehicle's wheel speed information may include a vehicle speed value, an acceleration value, or a driving distance value. Therefore, the preset threshold that is set may be a speed threshold, an acceleration threshold, or a driving distance threshold. If the acceleration value is greater than the preset acceleration threshold, or the speed value is greater than the preset speed threshold, or the driving distance value is greater than the preset driving distance threshold, the vehicle can be subjected to a collision condition detection.

[0077] The collision condition detection of the vehicle can detect parameters such as the door status and gear information on the vehicle, so as to further confirm whether the vehicle is in a rear-end collision condition.

[0078] This embodiment provides a vehicle collision condition detection method, which obtains vehicle wheel speed information when the vehicle is in a parking brake state; determines the current working condition of the vehicle based on the vehicle wheel speed information; and performs vehicle collision condition detection based on the current working condition of the vehicle and the vehicle wheel speed information. Compared with the existing vehicle collision condition detection, this application does not require the participation of the vehicle's safety control unit, nor does it require additional collision calibration tests and safety control unit calibration. It can meet the requirements based only on the existing vehicle system architecture and software updates. It relies on the collision electronic system architecture, and can perform vehicle collision condition detection based on the acquired vehicle information, which reduces the detection cost while also improving the detection efficiency.

[0079] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 4 , step S30 includes steps S301 to S303:

[0080] Step S301: when the current working condition of the vehicle is a preset dangerous working condition, a current speed value is obtained according to the wheel speed information of the vehicle.

[0081] It should be noted that when the vehicle is currently in a preset dangerous condition, the next step of judgment can be made based on the vehicle wheel speed information to further confirm whether the vehicle has collided. Therefore, the current speed value can be obtained based on the vehicle wheel speed information.

[0082] In a feasible implementation, if the vehicle's current operating condition is a preset operating condition, the vehicle's double flash lights can be triggered to light up, thereby issuing an early warning. Therefore, after the step of obtaining the vehicle's current operating condition, it also includes: when the vehicle's current operating condition is a preset dangerous condition, generating a double flash light turn-on instruction; and controlling the vehicle's double flash lights to light up based on the double flash light turn-on instruction.

[0083] It is understandable that if the vehicle's current operating condition is a preset dangerous condition, it means that the vehicle may be at risk of collision, so the double flashes need to be triggered. Then, a double flash light turn-on instruction can be generated to control the vehicle's double flash lights to light up and issue a danger warning.

[0084] Step S302: When the current speed value is greater than a first preset speed threshold, the current gear position and door status of the vehicle are obtained.

[0085] In a specific implementation, the first preset speed threshold can be set to 10km / h. Since the vehicle is currently in a preset dangerous condition, the current speed value exceeds 5km / h. If the current speed value exceeds a higher threshold, that is, exceeds the first preset speed threshold, the vehicle's current gear position and door status are obtained based on the vehicle's gear position signal and door closing signal.

[0086] It should be noted that if the current speed value is less than or equal to 10km / h, it is determined that the vehicle currently does not have a collision risk, and the wheel speed information can continue to be monitored. The current gear position may include one of a forward gear, a neutral gear, a parking gear, or a reverse gear, and the door state may be an open state or a closed state.

[0087] Step S303: Perform vehicle collision condition detection according to the current gear position and the door state.

[0088] It is understandable that the collision condition detection of the vehicle can be performed according to the specific gear position and door status of the vehicle.

[0089] In a feasible implementation, step S303 may include steps A11 to A12:

[0090] Step A11: When the current gear position is neutral, detecting whether the door is in a closed state.

[0091] It should be noted that if it is detected that the current gear of the vehicle is neutral, the door state can be further determined. If the current gear of the vehicle is not neutral, the process returns to the step of determining whether the first preset speed threshold is reached based on the current speed value.

[0092] In a specific implementation, if the current gear position of the vehicle is neutral, but the door state is open, the process returns to the step of determining whether the first preset speed threshold is reached based on the current speed value.

[0093] Step A12: When the door is in the closed state, determining that the vehicle enters a rear-end collision condition.

[0094] It is understandable that if the current gear position of the vehicle is neutral and the door state of the vehicle is the door closed and locked state, it is determined that the vehicle enters the rear impact condition. The rear impact condition refers to a specific test condition and scenario that simulates a collision of the rear end of the vehicle in a vehicle collision test.

[0095] In a specific implementation, if the vehicle is in a rear-end collision condition, the door unlocking may be triggered. Then, after the step of detecting the vehicle collision condition, the method further includes: generating a door unlocking instruction when it is detected that the vehicle enters a rear-end collision condition; and controlling the door unlocking of the vehicle based on the door unlocking instruction.

[0096] It is understandable that due to regulatory requirements, the doors of the vehicle should be in an unlocked state after a rear-end collision. Therefore, when it is detected that the vehicle has entered a rear-end collision condition, a door unlocking instruction is generated, and the vehicle's doors are unlocked according to the door unlocking instruction.

[0097] like Figure 5 As shown, Figure 5 This is a schematic diagram of the system architecture of this embodiment. The wheel speed information is detected by the wheel speed sensor. When the threshold speed is reached, the signal is sent to the BCM via the CAN bus through the VDC (Vehicle Dynamic Control). The gear position signal is detected. When the gear position is in neutral, the gear position signal is sent to the BCM via the CAN bus through the DCT (Dual Clutch Transmission). By collecting the vehicle's parking brake signal, when the parking brake is activated, the parking brake status is sent to the BCM via the CAN bus through the SHBW (Shift By Wire) system. By collecting the door closing signal, when the door is closed and locked, the door is sent to the BCM. The BCM sends a corresponding command signal based on the received signal, thereby triggering the double flash to light up or the door to unlock.

[0098] In this embodiment, when the current working condition of the vehicle is a preset dangerous working condition, the current speed value is obtained according to the vehicle wheel speed information; when the current speed value is greater than the first preset speed threshold, the current gear position and door status of the vehicle are obtained; and the vehicle collision working condition detection is performed according to the current gear position and the door status. By real-time monitoring of vehicle speed, gear position and door status, dangerous situations that may lead to collisions can be identified earlier, so that measures can be taken to avoid or mitigate accidents.

[0099] For example, in order to help understand the implementation process of the vehicle collision condition detection method obtained by combining this embodiment with the above-mentioned embodiment 1, please refer to Figure 6 , Figure 6 A brief flow diagram of a vehicle collision condition detection method is provided, specifically: when the vehicle ignition signal is turned on, the BCM is triggered to collect signals, and it is determined whether the parking brake is activated. If not, the judgment step is continued. If the parking brake is activated, the detection process is activated to detect whether the wheel speed reaches 5km / h. If not, the step of detecting the wheel speed is returned. If so, the vehicle's double flash is triggered, and the wheel speed is detected to be 10km / h. If not, the wheel speed is continued to be monitored. If so, it is detected whether the gear position of the vehicle is in neutral. If not, the wheel speed is continued to be monitored. If so, it is determined whether the vehicle door is closed and locked. If not, the wheel speed is continued to be monitored. If so, the door is triggered to unlock.

[0100] This application also provides a vehicle collision condition detection device, please refer to Figure 7 , the vehicle collision condition detection device comprises:

[0101] The acquisition module 10 is used to acquire the vehicle wheel speed information when the vehicle is in a parking brake state.

[0102] The determination module 20 is used to determine the current working condition of the vehicle according to the vehicle wheel speed information.

[0103] The detection module 30 is used to detect the vehicle collision condition according to the current working condition of the vehicle and the vehicle wheel speed information.

[0104] The vehicle collision condition detection device provided by the present application adopts the vehicle collision condition detection method in the above-mentioned embodiment, which can solve the technical problems of high cost and low efficiency of current vehicle collision condition detection. Compared with the prior art, the beneficial effects of the vehicle collision condition detection device provided by the present application are the same as the beneficial effects of the vehicle collision condition detection method provided by the above-mentioned embodiment, and other technical features in the vehicle collision condition detection device are the same as the features disclosed in the above-mentioned embodiment method, which will not be repeated here.

[0105] In one embodiment, the detection module 30 is also used to compare whether the vehicle wheel speed information is greater than a preset threshold when the current operating condition of the vehicle is a preset dangerous condition; when the vehicle wheel speed information is greater than the preset threshold, perform a vehicle collision condition detection on the vehicle.

[0106] In one embodiment, the detection module 30 is also used to obtain a current speed value based on the vehicle wheel speed information when the current operating condition of the vehicle is a preset dangerous condition; when the current speed value is greater than a first preset speed threshold, obtain the current gear position and door status of the vehicle; and perform vehicle collision condition detection based on the current gear position and the door status.

[0107] In one embodiment, the detection module 30 is further used to detect whether the door state is closed when the current gear is neutral; when the door state is closed, determine that the vehicle enters a rear-end collision condition.

[0108] In one embodiment, the determination module 20 is also used to obtain a current speed value based on the vehicle wheel speed information; when the current speed value is greater than a second preset speed threshold, it is determined that the current operating condition of the vehicle is a preset dangerous operating condition, and the first preset speed threshold is greater than the second preset speed threshold.

[0109] In one embodiment, the device further includes a control module, which is used to generate a double flash light activation instruction when the current operating condition of the vehicle is a preset dangerous operating condition; and control the double flash lights of the vehicle to light up based on the double flash light activation instruction.

[0110] In one embodiment, the control module is further used to generate a door unlocking instruction when it is detected that the vehicle enters a rear-end collision condition; and control the unlocking of the vehicle doors based on the door unlocking instruction.

[0111] The present application provides a vehicle collision condition detection device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the vehicle collision condition detection method in the above-mentioned embodiment one.

[0112] Reference below Figure 8, which shows a schematic diagram of the structure of a vehicle collision condition detection device suitable for implementing the embodiment of the present application. The vehicle collision condition detection device in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 8 The vehicle collision condition detection device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0113] like Figure 8 As shown, the vehicle collision working condition detection device may include a processing device 1001 (such as a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the vehicle collision working condition detection device are also stored. The processing device 1001, ROM1002 and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touch screen, a touchpad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; storage devices 1003 including, for example, a magnetic tape, a hard disk, etc.; and communication devices 1009. The communication device 1009 can allow the vehicle collision condition detection device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows a vehicle collision condition detection device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems may be implemented or have alternatively.

[0114] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0115] The vehicle collision condition detection device provided by the present application adopts the vehicle collision condition detection method in the above embodiment, which can solve the technical problems of high cost and low efficiency of current vehicle collision condition detection. Compared with the prior art, the beneficial effects of the vehicle collision condition detection device provided by the present application are the same as the beneficial effects of the vehicle collision condition detection method provided by the above embodiment, and the other technical features in the vehicle collision condition detection device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0116] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0117] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0118] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the vehicle collision condition detection method in the above-mentioned embodiment.

[0119] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: 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 this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0120] The computer-readable storage medium may be included in the vehicle collision condition detection device; or may exist independently without being assembled into the vehicle collision condition detection device.

[0121] The above-mentioned computer-readable storage medium carries one or more programs. When the above-mentioned one or more programs are executed by the vehicle collision condition detection device, the vehicle collision condition detection device: obtains the vehicle wheel speed information when the vehicle is in a parking brake state; determines the current working condition of the vehicle based on the vehicle wheel speed information; and performs vehicle collision condition detection based on the current working condition of the vehicle and the vehicle wheel speed information.

[0122] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0123] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0124] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0125] The readable storage medium provided by the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned vehicle collision condition detection method, and can solve the technical problems of high cost and low efficiency of current vehicle collision condition detection. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by the present application are the same as the beneficial effects of the vehicle collision condition detection method provided by the above-mentioned embodiment, and will not be described in detail here.

[0126] The present application also provides a computer program product, including a computer program, which implements the steps of the above-mentioned vehicle collision condition detection method when executed by a processor.

[0127] The computer program product provided by the present application can solve the technical problems of high cost and low efficiency of current vehicle collision condition detection. Compared with the prior art, the beneficial effects of the computer program product provided by the present application are the same as the beneficial effects of the vehicle collision condition detection method provided by the above embodiment, which will not be elaborated here.

[0128] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A vehicle collision condition detection method, characterized in that: The vehicle collision condition detection method comprises: When the vehicle is in a parking brake state, obtaining vehicle wheel speed information; Determining the current working condition of the vehicle according to the vehicle wheel speed information; The vehicle collision condition detection is performed according to the current working condition of the vehicle and the vehicle wheel speed information.

2. The method according to claim 1, characterized in that The step of detecting the vehicle collision condition according to the current working condition of the vehicle and the vehicle wheel speed information comprises: When the current working condition of the vehicle is a preset dangerous working condition, comparing whether the vehicle wheel speed information is greater than a preset threshold; When the vehicle wheel speed information is greater than the preset threshold, a vehicle collision condition detection is performed on the vehicle.

3. The method according to claim 1, characterized in that The step of detecting the vehicle collision condition according to the current working condition of the vehicle and the vehicle wheel speed information comprises: When the current working condition of the vehicle is a preset dangerous working condition, obtaining a current speed value according to the wheel speed information of the vehicle; When the current speed value is greater than a first preset speed threshold, obtaining the current gear position and door status of the vehicle; Vehicle collision condition detection is performed according to the current gear position and the door state.

4. The method according to claim 3, characterized in that The step of detecting the vehicle collision condition according to the current gear position and the door state comprises: When the current gear position is neutral, detecting whether the door state is closed; When the vehicle door is in a closed state, it is determined that the vehicle enters a rear-end collision condition.

5. The method according to claim 1, characterized in that The step of determining the current working condition of the vehicle according to the vehicle wheel speed information comprises: Obtaining a current speed value according to the vehicle wheel speed information; When the current speed value is greater than the second preset speed threshold, it is determined that the current operating condition of the vehicle is a preset dangerous operating condition, and the first preset speed threshold is greater than the second preset speed threshold.

6. The method according to claim 1, characterized in that The method further comprises: When the current operating condition of the vehicle is a preset dangerous operating condition, generating a double flash light activation instruction; The double flash lights of the vehicle are controlled to light up based on the double flash lights on instruction.

7. The method according to any one of claims 1 to 6, characterized in that After the step of detecting the vehicle collision condition according to the current working condition of the vehicle and the vehicle wheel speed information, the method further includes: When the vehicle is detected to be in a rear-end collision condition, a door unlocking command is generated; The door unlocking of the vehicle is controlled based on the door unlocking instruction.

8. A vehicle collision condition detection device, characterized in that: The device comprises: An acquisition module, used to acquire vehicle wheel speed information when the vehicle is in a parking brake state; A determination module, used to determine the current working condition of the vehicle according to the vehicle wheel speed information; The detection module is used to detect the vehicle collision condition according to the current working condition of the vehicle and the vehicle wheel speed information.

9. A vehicle collision condition detection device, characterized in that: The device comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the vehicle collision condition detection method according to any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the vehicle collision condition detection method according to any one of claims 1 to 7 are implemented.

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