Safety control method, device, equipment and storage medium based on trailer status

Abstract

The present invention belongs to the field of vehicle safety technology, and discloses a safety control method, device, equipment and storage medium based on the trailer status. The method includes: detecting the trailer status of the current vehicle; when detecting that the trailer status is trailer connection, turning off the rear collision detection or increasing the rear collision detection threshold from the current collision detection threshold to the preset collision threshold. Through the above scheme, it is realized to adjust the collision detection process according to the trailer status, avoid the impact of loading the trailer on the actual passive safety function of the vehicle, reduce the probability of misjudgment, and improve the safety of vehicle driving and the user's car experience.

Description

Technical Field

[0001] The present invention relates to the field of vehicle safety technology, and in particular to a trailer state-based safety control method, device, equipment and storage medium. Background Art

[0002] When the vehicle is in trailer mode, the rear trailer and the front vehicle will be out of sync. For example, if the front vehicle suddenly decelerates or accelerates, the rear trailer will impact the front vehicle due to inertial movement. At this time, the acceleration sensor on the vehicle body will sense the impact signal, which may be identified by the safety control unit as a rear collision, resulting in the problem of false triggering of safety emergency devices such as seat belts or airbags. And when the rear trailer is attached to the vehicle, the rear collision generally only occurs on the rear trailer, and the front vehicle will not be directly hit from the rear. Therefore, in this driving mode, the safety emergency device is unacceptable to customers, and may cause additional damage to the occupants.

[0003] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The main purpose of the present invention is to provide a safety control method, device, equipment and storage medium based on the trailer status, aiming to solve the technical problem of misidentification of rear collision caused by trailers in the prior art.

[0005] To achieve the above object, the present invention provides a safety control method based on trailer status, the method comprising the following steps:

[0006] Detect the trailer status of the current vehicle;

[0007] When it is detected that the trailer state is trailer connection, the rear side collision detection is turned off or the rear side collision detection threshold is increased from the current collision detection threshold to the preset collision threshold.

[0008] Optionally, before increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold, the method further includes:

[0009] Get trailer information and trailer load information;

[0010] A preset collision threshold is determined based on trailer information and trailer load information.

[0011] Optionally, before increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold, the method further includes:

[0012] Get trailer information and trailer load information;

[0013] Determine a collision threshold control curve according to the trailer information and trailer load information;

[0014] Get the current vehicle speed;

[0015] The driving speed is input into a collision threshold control curve to determine a preset collision threshold.

[0016] Optionally, after the method of, when detecting that the trailer state is trailer connection, closing the rear side collision detection or increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold, further comprises:

[0017] Get vehicle acceleration;

[0018] Safety control is performed according to the vehicle acceleration.

[0019] Optionally, performing passive safety control according to the vehicle acceleration information includes:

[0020] When the vehicle acceleration is greater than a preset acceleration threshold, the active tightening seat belt is triggered.

[0021] Optionally, after detecting the trailer status of the current vehicle, the method further includes:

[0022] When it is detected that the trailer state is trailer connected, obtaining trailer load information;

[0023] A driving speed threshold is determined according to the trailer load information, and the vehicle driving speed is controlled according to the driving speed threshold.

[0024] Optionally, after the method of, when detecting that the trailer state is trailer connection, closing the rear side collision detection or increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold, further comprises:

[0025] When it is detected that the rear side collision detection is turned off or the rear side collision detection threshold is increased from the current collision detection threshold to the preset collision threshold, a rear side collision detection prompt instruction is generated;

[0026] According to the rear side collision detection prompt instruction, a prompt corresponding to closing the rear side collision detection or increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold is completed.

[0027] In addition, to achieve the above-mentioned purpose, the present invention further proposes a safety control device based on the trailer state, the safety control device based on the trailer state comprising:

[0028] A detection module, used to detect the trailer status of the current vehicle;

[0029] The processing module is used to turn off the rear side collision detection or increase the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold when detecting that the trailer state is the trailer connection.

[0030] In addition, to achieve the above-mentioned purpose, the present invention also proposes a safety control device based on trailer status, and the safety control device based on trailer status includes: a memory, a processor, and a safety control program based on trailer status stored in the memory and executable on the processor, and the safety control program based on trailer status is configured to implement the steps of the safety control method based on trailer status as described above.

[0031] In addition, to achieve the above-mentioned purpose, the present invention also proposes a storage medium, on which a safety control program based on the trailer status is stored. When the safety control program based on the trailer status is executed by the processor, the steps of the safety control method based on the trailer status as described above are implemented.

[0032] The present invention detects the trailer status of the current vehicle; when the trailer status is detected to be trailer connected, the rear collision detection is turned off or the rear collision detection threshold is increased from the current collision detection threshold to a preset collision threshold. Through the above scheme, the collision detection process is adjusted according to the trailer status, avoiding the impact of loading the trailer on the actual passive safety function of the vehicle, reducing the probability of misjudgment, and improving the safety of vehicle driving and the user's car experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural diagram of a safety control device based on trailer status in a hardware operating environment involved in an embodiment of the present invention;

[0034] Figure 2 It is a flowchart of a first embodiment of a safety control method based on trailer status of the present invention;

[0035] Figure 3 It is a flow chart of a second embodiment of the safety control method based on trailer status of the present invention;

[0036] Figure 4 It is a structural block diagram of the first embodiment of the safety control device based on the trailer status of the present invention.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0039] Reference Figure 1 , Figure 1 It is a schematic diagram of the structure of a safety control device based on the trailer status in the hardware operating environment involved in the embodiment of the present invention.

[0040] like Figure 1 As shown, the safety control device based on the trailer state may 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. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface and a wireless interface. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (Wireless-Fidelity, Wi-Fi) interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) memory, or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk memory. The memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0041] Those skilled in the art will understand that Figure 1 The structure shown in the figure does not constitute a limitation on the safety control device based on the trailer status, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0042] like Figure 1 As shown, the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a safety control program based on the trailer status.

[0043] exist Figure 1 In the trailer-state-based safety control device shown, 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 trailer-state-based safety control device of the present invention can be set in the trailer-state-based safety control device, and the trailer-state-based safety control device calls the trailer-state-based safety control program stored in the memory 1005 through the processor 1001, and executes the trailer-state-based safety control method provided in an embodiment of the present invention.

[0044] The embodiment of the present invention provides a safety control method based on the trailer state, referring to Figure 2 , Figure 2 It is a flowchart diagram of a first embodiment of a safety control method based on trailer status of the present invention.

[0045] In this embodiment, the safety control method based on the trailer state includes the following steps:

[0046] Step S10: Detect the trailer status of the current vehicle.

[0047] It should be noted that the executor of this embodiment is an on-board intelligent terminal, which can be a vehicle passive safety control system, a vehicle controller, or other devices with the same or similar functions as the passive safety control system. This embodiment does not limit this and only takes the server as an example for explanation.

[0048] It should be noted that this embodiment is applied to vehicles with trailer functions. With the popularity of car camping and self-driving travel culture, more and more vehicles are beginning to develop rear trailer functions, thereby realizing the ability of vehicles towing trailers, thereby meeting customers' better camping and self-driving travel cargo needs. In order to ensure the safety of passengers, current cars are equipped with forward, lateral and rearward collision recognition functions. During the driving process of the vehicle, if the vehicle collides, the collision sensor installed on the vehicle body will send the perceived collision acceleration signal to the airbag control unit. When the threshold of the seat belt and airbag detonation is reached, the control unit will stimulate the ignition current, detonate the corresponding seat belt and airbag, and realize the protection of passengers during the collision. However, when the vehicle is in trailer mode, the rear trailer and the front vehicle will be out of sync. For example, the front vehicle suddenly decelerates, or the front vehicle suddenly accelerates, etc. The rear trailer will produce an impact on the front vehicle due to inertial motion. At this time, the acceleration sensor on the vehicle body will sense the impact signal, which may be recognized by the airbag control unit as a rear collision, thereby causing the seat belt or airbag to be mis-detonated. And when a vehicle is behind a trailer, rear collision generally only occurs on the rear trailer, and the front vehicle will not be directly hit from the rear. Therefore, in this driving mode, the deployment of seat belts or airbags is unacceptable to customers, and incorrect deployment of seat belts or airbags may also cause additional injuries to passengers. Based on the above content, this embodiment provides a safety control strategy to avoid the misidentification of vehicles caused by such trailers.

[0049] It is understood that a trailer refers to an additional vehicle connected via a connecting device (such as a trailer hook) or a vehicle traction device (such as a trailer hook seat). A trailer is usually used to transport goods or provide other specific functions.

[0050] Among them, the trailer status can be detected by an electronic trailer device, in which a mechanism that can be opened and closed manually is provided, and a locking mechanism is provided at the same time, which is used to connect and release the rear trailer. The provision of a locking mechanism can prevent changes in the connection status due to external vibrations and interference. Electrical signals of different states are generated in the open and closed states, and the locking mechanism and state are also electrically identifiable. Furthermore, the trailer status identification control unit can be used, such as: through the electrical signal of the electronic trailer device, it can be identified whether the vehicle is in a trailer state or a non-trailer state, a locked state or an unlocked state, and the signal can be sent through the vehicle communication network to confirm whether there is a trailer.

[0051] Step S20: when it is detected that the trailer state is trailer connection, the rear side collision detection is turned off or the rear side collision detection threshold is increased from the current collision detection threshold to the preset collision threshold.

[0052] It should be noted that when it is detected that the trailer status is trailer connection, it means that the vehicle has been connected to the trailer. At this time, the passive safety system needs to be controlled. This embodiment proposes the following preferred solution, for example: turning off the rear collision detection, so that no matter how the rear trailer collides, the passive safety function will not be accidentally triggered, and the setting is convenient and simple.

[0053] It should be understood that this embodiment further proposes another solution, for example: increasing the rear collision detection threshold from the current collision detection threshold to the preset collision threshold. The current collision threshold is the threshold for detecting whether there is a rear collision under normal circumstances. The type of the rear collision detection threshold is mainly determined by the sensor for collision detection. For example, when collision detection is performed through a pressure sensor, the rear collision detection threshold is the pressure threshold of the pressure sensor. When it is detected that the trailer state is trailer connection, the rear collision detection threshold is increased from the current collision detection threshold to the preset collision threshold. The preset collision threshold is greater than the current collision detection threshold to ensure that the passive safety control system will not be easily activated when the trailer impacts the current vehicle.

[0054] It is understandable that the purpose of presetting the collision threshold to be greater than the current collision detection threshold is to reduce the sensitivity of rear-side collision detection. Due to the presence of the trailer, there is a high probability that there will often be a certain impact on the rear side. If the rear-side collision detection is too sensitive, it is easy to cause misjudgment.

[0055] In the specific implementation, the advantage of setting a preset collision threshold compared to directly turning off the rear collision detection is that if the vehicle does encounter a collision, a higher preset collision threshold can still complete the collision detection. It may not be as sensitive as the initial collision threshold detection, but it can avoid false touches while ensuring that the active protection mechanism can still be triggered after the vehicle is hit, thereby improving the safety when the trailer is connected. Since there is a trailer as a buffer, even if the rear side encounters a collision, the collision intensity is low and will not have a major impact on the front vehicle. If the collision intensity is strong, a higher preset collision threshold can still detect a rear collision. Therefore, this embodiment is proposed as a preferred scheme for adjusting the rear collision detection system in the current scheme.

[0056] In some embodiments, before increasing the rear collision detection threshold from the current collision detection threshold to the preset collision threshold, the method further includes: obtaining trailer information and trailer load information; and determining the preset collision threshold based on the trailer information and trailer load information.

[0057] It should be noted that this embodiment proposes a more accurate scheme for determining the preset collision threshold, for example: determining the preset collision threshold based on trailer information and trailer load information. This is because the model of the trailer, etc. will have different effects on the trailer, for example: different friction coefficients, vehicle weights, and vehicle structures will have different effects on the impact effect of the vehicle, so the trailer can be calibrated. The mapping relationship between the load condition and the collision threshold is determined according to different vehicle models. For example: calibrate the model A trailer, test the model A trailer with a granularity of 100KG, test the detection size of the sensor when the trailer hits the vehicle under different loads, and set the preset collision threshold based on the maximum threshold triggered by the collision sensor to ensure that the trailer will not trigger the identification of a rear-side collision in a normal driving scenario. From then on, the user can set the trailer type through the system, and determine the trailer load through the trailer's own sensor to obtain a differentiated preset collision threshold.

[0058] In a specific implementation, the advantage of setting a higher preset collision threshold compared to directly turning off the rear collision detection is that if the vehicle does encounter a collision, the higher preset collision threshold can still complete the collision detection. It may not be as sensitive as the initial collision threshold detection, but it can avoid false touches while ensuring that the active protection mechanism can still be triggered after the vehicle is hit. The calibration through trailer information and trailer load information further improves the safety when the trailer is connected. The preset collision threshold set according to the trailer information and trailer load information can still detect a rear collision. No matter how much cargo and what type of cargo the rear trailer is carrying, a reasonable preset collision threshold setting can still be designed. Therefore, this embodiment is proposed as the preferred scheme for the preset collision threshold setting in the current scheme.

[0059] Among them, the process of obtaining trailer information can be, for example: the user selects the trailer model, or the image or marker of the trailer is identified by an image acquisition device. After the trailer model is determined, the various parameter information of the trailer can be accessed online to obtain complete trailer information; the process of obtaining trailer load information can be, for example: measured by axle weight sensors installed on the trailer chassis. These sensors can detect the weight of each axle and estimate the load of the whole vehicle in combination with the structure and layout of the vehicle, or many trailers usually have a suspension system. The load can be detected by sensors installed on the suspension device. These sensors can measure parameters such as pressure, deformation or displacement of the suspension device, and calculate the load through an algorithm. This embodiment does not limit the specific acquisition method.

[0060] In some embodiments, before increasing the rear collision detection threshold from the current collision detection threshold to the preset collision threshold, it also includes: obtaining trailer information and trailer load information; determining a collision threshold control curve based on the trailer information and trailer load information; obtaining the current vehicle's driving speed; and inputting the driving speed into the collision threshold control curve to determine the preset collision threshold.

[0061] It should be noted that the present embodiment proposes a further optimization scheme to more accurately dynamically control the preset collision threshold, and further determine the preset collision threshold according to the speed. This is because, when the speed is fast, if there is a change in speed, the impact force of the collision of the trailer due to inertia is relatively large. However, if the vehicle is parked or moving slowly, there will be almost no collision between the trailer and the vehicle. Therefore, the preset collision threshold at this time can be set to a smaller value or restored to normal. So far, the present embodiment proposes the following preferred scheme: different friction coefficients, vehicle weights, and vehicle structures will have different effects on the impact effect of the vehicle, so the trailer can be calibrated. Determine the mapping relationship between the load condition and the collision threshold according to different vehicle models. For example, calibrate the trailer of model A, test the trailer of model A with a granularity of 100KG, and test the corresponding relationship between the detection size of the sensor and the vehicle speed when the trailer hits the vehicle under different loads. For example, when the trailer of model A is loaded with 300KG, test the sensor value when the trailer hits the current vehicle at normal braking speed at each speed, and set the preset collision threshold based on this value triggered by the collision sensor. At the same time, draw the corresponding relationship between this speed and the sensor value when the trailer hits the current vehicle into a collision threshold control curve to ensure that the trailer will not trigger the identification of the rear-side collision in normal driving scenarios. From then on, the user can set the trailer type through the system, and determine the trailer load through the sensor of the trailer, and obtain a differentiated collision threshold control curve. The vehicle only needs to dynamically adjust the rear-side collision detection according to the collision threshold control curve. This embodiment recommends delaying the process of adjusting the preset collision threshold according to the driving speed for a period of time to ensure that the preset collision threshold changes at the moment when it is about to occur, resulting in misjudgment.

[0062] In some embodiments, after detecting the trailer status of the current vehicle, it also includes: when it is detected that the trailer status is trailer connected, obtaining trailer load information; determining a driving speed threshold according to the trailer load information, and controlling the vehicle driving speed according to the driving speed threshold.

[0063] It should be noted that this embodiment proposes a vehicle speed limit scheme when trailering. This is because the presence of the trailer will affect the driving performance and handling ability of the vehicle, and may increase the risk of driving. For example, the presence of the trailer will increase the overall length and weight of the vehicle, affecting the stability of the vehicle. When driving at high speed or turning, the swing and inertia of the trailer may cause the vehicle to lose balance, increasing the risk of rollover or loss of control. The weight of the trailer will increase the braking distance of the entire vehicle. In the event of emergency braking or encountering an emergency, the increase in braking distance may cause the vehicle to be unable to stop in time, increasing the risk of collision. The weight of the trailer will affect the acceleration performance of the vehicle. When rapid acceleration or overtaking is required, the presence of the trailer may cause the vehicle to react slowly, increasing the risk of traffic accidents. Based on the above content, the speed of the trailer can be dynamically limited according to the vehicle's load information. For example, after the power system controller receives the trailer status signal, it turns on the automatic speed limit function and determines the speed limit threshold according to the trailer's load information to ensure that the vehicle's driving speed is lower than the speed threshold. Specifically, the power system controller is a power-related control unit, which receives the trailer status signal from the vehicle network and performs intelligent speed limit based on the signal status.

[0064] Furthermore, this embodiment can be extended to control in scenarios such as airbags and automatic driving. For example, after the airbag controller receives the trailer status signal, it automatically turns off the rear collision algorithm. After turning it off, the rear collision will not be triggered, and the seat belt and airbag will not be detonated. After the airbag controller turns off the rear collision ignition function, it sends the status signal to the instrument. After receiving the signal, the instrument pops up a window prompt: the rear collision function has been turned off, please drive carefully, so as to remind and warn the driver. At the same time, when the rear collision ignition function is turned off, the linkage effect of the front vehicle seat belt can be controlled according to the acceleration signal sensed by the body sensor. When a large rear impact is sensed, the active tightening seat belt is triggered to fix the front vehicle occupants on the seat, thereby avoiding injuries to the front vehicle occupants when a large collision occurs with the rear trailer. Secondly, after the automatic driving controller receives the trailer status signal, it automatically turns off the self-driving function; or after the power system controller receives the trailer status signal, it turns on the automatic speed limit function.

[0065] Among them, in some embodiments, the following control can be performed: when the vehicle is trailering, the automatic driving controller will automatically turn off all self-driving functions to avoid vehicle and personnel damage caused by improper activation by the user. At the same time, when the vehicle is trailering, the power system controller will automatically limit the maximum speed of the vehicle, so that the vehicle can intelligently maintain driving below the safe speed, thereby avoiding traffic accidents caused by users driving at high speed.

[0066] In some embodiments, after turning off the rear side collision detection or increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold when detecting that the trailer status is trailer connection, it also includes: generating a rear side collision detection prompt instruction when detecting that the rear side collision detection is turned off or the rear side collision detection threshold is increased from the current collision detection threshold to the preset collision threshold; according to the rear side collision detection prompt instruction, completing the prompt corresponding to turning off the rear side collision detection or increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold.

[0067] It should be noted that due to the closure of the rear-side collision detection or the passive safety system, the safety function will be partially shut down. Therefore, the user should be reminded to pay appropriate attention or confirmation to prompt the user which functional changes have been completed. Since it is related to the safety function, certain prompts can greatly increase the driver's attention and improve safety. Specifically, when it is detected that the rear-side collision detection is turned off or the rear-side collision detection threshold is increased from the current collision detection threshold to the preset collision threshold, a rear-side collision detection prompt instruction is generated, and the rear-side collision detection prompt instruction is completed. The prompt corresponding to the rear-side collision detection being turned off or the rear-side collision detection threshold being increased from the current collision detection threshold to the preset collision threshold.

[0068] This embodiment detects the trailer status of the current vehicle; when it is detected that the trailer status is trailer connection, the rear collision detection is turned off or the rear collision detection threshold is increased from the current collision detection threshold to the preset collision threshold. Through the above scheme, the collision detection process is adjusted according to the trailer status, avoiding the impact of loading trailers on the actual passive safety functions of the vehicle, reducing the probability of misjudgment, and improving the safety of vehicle driving and the user's car experience.

[0069] refer to Figure 3 , Figure 3 This is a flow chart of a second embodiment of a safety control method based on trailer status of the present invention.

[0070] Based on the first embodiment described above, the safety control method based on the trailer state in this embodiment further includes, after step S20:

[0071] Step S201: Obtain vehicle acceleration.

[0072] It should be noted that vehicle acceleration refers to the increase in speed of the vehicle per unit time. The specific acquisition process can be: collision acceleration sensor: identifies the collision acceleration of the vehicle body and maintains real-time communication and data transmission with the airbag controller.

[0073] Step S202: Perform safety control according to the vehicle acceleration.

[0074] Among them, there are many passive safety control methods, such as: airbag controller, collision recognition and ignition trigger control unit, receiving trailer status signals from the network, and turning on or off the rear collision function according to the signal status, and sending the rear collision function status through the vehicle communication network. The airbag system is one of the common passive safety devices in vehicles. When the vehicle collides, the airbag will inflate quickly to provide additional protection for the occupants and reduce injuries to the head, chest and abdomen. And actively tighten the seat belt, which can fix the occupants in the seat, reduce body movement during collision, avoid hitting the structure inside the car or other occupants, and reduce injuries. Automatic braking system, the vehicle's braking system is an important part of passive safety. An efficient braking system can reduce the impact force during collision, shorten the stopping distance, and provide better braking performance and handling. Body stability system, the design of the vehicle's stability and suspension system can reduce the risk of rollover and loss of control during collision, and provide better handling and stability. In order to avoid these functions being affected by rear collision detection and not triggered, the vehicle acceleration can be put into safety control.

[0075] It should be noted that when the rear-side collision detection is turned off or its perception ability is weakened, an auxiliary collision detection method that does not affect the collision is turned on, which ensures that a certain perception ability is retained for collision detection while not triggering the airbag frequently.

[0076] In some embodiments, when the vehicle acceleration is greater than a preset acceleration threshold, an active tightening seat belt is triggered.

[0077] It can be immediately seen that, in conjunction with the active tightening seat belts for safety protection, a certain degree of protection can be provided to the user in the event of a relatively minor collision. This is because even a trailer collision will have a certain degree of impact on the user's comfort or safety. Therefore, minimal passive safety measures can be used to provide a certain degree of protection.

[0078] This embodiment obtains the vehicle acceleration; safety control is performed according to the vehicle acceleration. In the above manner, after turning off the rear collision detection or increasing the rear collision detection threshold from the current collision detection threshold to the preset collision threshold, an auxiliary collision detection method that does not affect the collision can still be maintained, and active tightening seat belts can be used for safety protection, which ensures that a certain perception ability is retained for collision detection while not frequently triggering the airbag, and ensures the safety of the user through a certain limit of passive safety measures, thereby improving the safety of the vehicle when towing.

[0079] In addition, an embodiment of the present invention further proposes a storage medium, on which a safety control program based on the trailer status is stored. When the safety control program based on the trailer status is executed by a processor, the steps of the safety control method based on the trailer status as described above are implemented.

[0080] Reference Figure 4 , Figure 4 It is a structural block diagram of the first embodiment of the safety control device based on the trailer status of the present invention.

[0081] like Figure 4 As shown, the safety control device based on the trailer state proposed in the embodiment of the present invention includes:

[0082] A detection module 10 is used to detect the trailer status of the current vehicle;

[0083] The processing module 20 is used to turn off the rear side collision detection or increase the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold when detecting that the trailer state is the trailer connection.

[0084] It should be understood that the above is only an example and does not constitute any limitation on the technical solution of the present invention. In specific applications, technicians in this field can make settings as needed, and the present invention does not limit this.

[0085] The detection module 10 of this embodiment is used to detect the trailer status of the current vehicle; the processing module 20 is used to turn off the rear collision detection or increase the rear collision detection threshold from the current collision detection threshold to the preset collision threshold when the trailer status is detected to be trailer connected. Through the above scheme, the collision detection process is adjusted according to the trailer status, avoiding the impact of loading trailers on the actual passive safety function of the vehicle, reducing the probability of misjudgment, and improving the safety of vehicle driving and the user's car experience.

[0086] In some embodiments, the processing module 20 is further used to obtain trailer information and trailer load information;

[0087] A preset collision threshold is determined based on trailer information and trailer load information.

[0088] In some embodiments, the processing module 20 is further used to obtain trailer information and trailer load information;

[0089] Determine a collision threshold control curve according to the trailer information and trailer load information;

[0090] Get the current vehicle speed;

[0091] The driving speed is input into a collision threshold control curve to determine a preset collision threshold.

[0092] In some embodiments, the processing module 20 is further used to obtain vehicle acceleration;

[0093] Safety control is performed according to the vehicle acceleration.

[0094] In some embodiments, the processing module 20 is further configured to trigger an active tightening seat belt when the vehicle acceleration is greater than a preset acceleration threshold.

[0095] In some embodiments, the processing module 20 is further used to obtain trailer load information when detecting that the trailer state is trailer connection;

[0096] A driving speed threshold is determined according to the trailer load information, and the vehicle driving speed is controlled according to the driving speed threshold.

[0097] In some embodiments, the processing module 20 is further configured to generate a rear side collision detection prompt instruction when it is detected that the rear side collision detection is turned off or the rear side collision detection threshold is increased from the current collision detection threshold to the preset collision threshold;

[0098] According to the rear side collision detection prompt instruction, a prompt corresponding to closing the rear side collision detection or increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold is completed.

[0099] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of the present invention. In practical applications, technicians in this field can select part or all of them according to actual needs to achieve the purpose of the present embodiment, and no limitation is made here.

[0100] In addition, for technical details not fully described in this embodiment, reference can be made to the safety control method based on the trailer status provided in any embodiment of the present invention, and will not be repeated here.

[0101] In addition, it should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.

[0102] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0103] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as a read-only memory (ROM) / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0104] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A safety control method based on trailer status, characterized in that: The safety control method based on the trailer state includes: Detect the trailer status of the current vehicle; When it is detected that the trailer state is trailer connection, turning off rear side collision detection or increasing the rear side collision detection threshold from the current collision detection threshold to a preset collision threshold; Before increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold, the method further includes: Get trailer information and trailer load information; Determine a collision threshold control curve according to the trailer information and trailer load information; Get the current vehicle speed; The driving speed is input into a collision threshold control curve to determine a preset collision threshold.

2. The method according to claim 1, characterized in that Before increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold, the method further includes: Get trailer information and trailer load information; A preset collision threshold is determined based on trailer information and trailer load information.

3. The method according to claim 1, characterized in that After the rear side collision detection is turned off or the rear side collision detection threshold is increased from the current collision detection threshold to the preset collision threshold when the trailer state is detected to be trailer connected, the method further includes: Get vehicle acceleration; Safety control is performed according to the vehicle acceleration.

4. The method according to claim 3, characterized in that The performing passive safety control according to the vehicle acceleration information includes: When the vehicle acceleration is greater than a preset acceleration threshold, the active tightening seat belt is triggered.

5. The method according to claim 1, characterized in that After detecting the trailer status of the current vehicle, the method further includes: When it is detected that the trailer state is trailer connected, obtaining trailer load information; A driving speed threshold is determined according to the trailer load information, and the vehicle driving speed is controlled according to the driving speed threshold.

6. The method according to any one of claims 1 to 5, characterized in that After the rear side collision detection is turned off or the rear side collision detection threshold is increased from the current collision detection threshold to the preset collision threshold when the trailer state is detected to be trailer connected, the method further includes: When it is detected that the rear side collision detection is turned off or the rear side collision detection threshold is increased from the current collision detection threshold to the preset collision threshold, a rear side collision detection prompt instruction is generated; According to the rear side collision detection prompt instruction, a prompt corresponding to closing the rear side collision detection or increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold is completed.

7. A safety control device based on trailer status, characterized in that: The safety control device based on the trailer state includes: A detection module, used to detect the trailer status of the current vehicle; a processing module, configured to, when detecting that the trailer state is trailer connection, turn off rear side collision detection or increase a rear side collision detection threshold from a current collision detection threshold to a preset collision threshold; Before increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold, the method further includes: Get trailer information and trailer load information; Determine a collision threshold control curve according to the trailer information and trailer load information; Get the current vehicle speed; The driving speed is input into a collision threshold control curve to determine a preset collision threshold.

8. A safety control device based on trailer status, characterized in that: The device includes: a memory, a processor, and a trailer status-based safety control program stored in the memory and executable on the processor, wherein the trailer status-based safety control program is configured to implement the steps of the trailer status-based safety control method as described in any one of claims 1 to 6.

9. A storage medium, characterized in that: The storage medium stores a safety control program based on the trailer state, and when the safety control program based on the trailer state is executed by the processor, the steps of the safety control method based on the trailer state as described in any one of claims 1 to 6 are implemented.

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