CN117465428A - Trailer state based safety control method, device, equipment and storage medium - Google Patents
Trailer state based safety control method, device, equipment and storage medium Download PDFInfo
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- CN117465428A CN117465428A CN202311645853.6A CN202311645853A CN117465428A CN 117465428 A CN117465428 A CN 117465428A CN 202311645853 A CN202311645853 A CN 202311645853A CN 117465428 A CN117465428 A CN 117465428A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/08—Active safety systems predicting or avoiding probable or impending collision or attempting to minimise its consequences
- B60W30/095—Predicting travel path or likelihood of collision
- B60W30/0953—Predicting travel path or likelihood of collision the prediction being responsive to vehicle dynamic parameters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
- B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2300/00—Indexing codes relating to the type of vehicle
- B60W2300/14—Trailers, e.g. full trailers, caravans
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
- B60W2520/105—Longitudinal acceleration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2530/00—Input parameters relating to vehicle conditions or values, not covered by groups B60W2510/00 or B60W2520/00
- B60W2530/10—Weight
Abstract
The invention belongs to the technical field of vehicle safety, and discloses a trailer state-based safety control method, device and equipment and a storage medium. The method comprises the following steps: detecting the trailer state of the current vehicle; and when the trailer state is detected to be trailer connection, closing the rear side collision detection or increasing the rear side collision detection threshold from the current collision detection threshold to a preset collision threshold. Through the scheme, the detection process of collision is adjusted according to the state of the trailer, the influence of loading the trailer on the actual passive safety function of the vehicle is avoided, the misjudgment probability is reduced, and the driving safety of the vehicle and the driving experience of a user are improved.
Description
Technical Field
The present invention relates to the field of vehicle security technologies, and in particular, to a trailer state-based security control method, apparatus, device, and storage medium.
Background
When the vehicle is in the trailer mode, a situation of asynchronous running occurs between the rear trailer and the front vehicle, such as sudden deceleration of the front vehicle or sudden acceleration of the front vehicle, the rear trailer generates an impact to the front vehicle due to inertial movement, and at this time, the acceleration sensor on the vehicle body senses the impact signal, which may be recognized as a rear collision by the safety control unit, thereby causing a problem of false triggering of safety emergency devices such as a safety belt or an air bag. And when the vehicle is behind a rear trailer, a rear collision generally occurs only on the rear trailer, and the front vehicle is not directly rear-collided. So in this driving mode, the safety emergency device is not acceptable to the customer and may cause serious additional injury to the occupants.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention mainly aims to provide a trailer state-based safety control method, device, equipment and storage medium, and aims to solve the technical problem that rear collision is misidentified due to a trailer in the prior art.
In order to achieve the above object, the present invention provides a safety control method based on a trailer state, the method comprising the steps of:
detecting the trailer state of the current vehicle;
and when the trailer state is detected to be trailer connection, closing the rear side collision detection or increasing the rear side collision detection threshold from the current collision detection threshold to a preset collision threshold.
Optionally, before the step of increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold, the method further includes:
acquiring trailer information and trailer load information;
and determining a preset collision threshold according to the trailer information and the trailer load information.
Optionally, before the step of increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold, the method further includes:
acquiring trailer information and trailer load information;
determining a collision threshold control curve according to the trailer information and the trailer load information;
acquiring the running speed of the current vehicle;
and inputting the running speed into a collision threshold control curve to determine a preset collision threshold.
Optionally, after 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 when the trailer state is detected to be the trailer connection, the method further includes:
acquiring vehicle acceleration;
and safety control is carried out according to the vehicle acceleration.
Optionally, the passive safety control according to the vehicle acceleration information includes:
and when the vehicle acceleration is larger than a preset acceleration threshold value, exciting the active tightening type safety belt.
Optionally, after detecting the trailer state of the current vehicle, the method further includes:
when the trailer state is detected to be trailer connection, acquiring trailer load information;
and determining a running speed threshold according to the trailer load information, and controlling the running speed of the vehicle according to the running speed threshold.
Optionally, after 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 when the trailer state is detected to be the trailer connection, the method further includes:
generating a rear side collision detection prompt instruction when the rear side collision detection is closed or the rear side collision detection threshold is reduced from the current collision detection threshold to a preset collision threshold;
and according to the rear side collision detection prompt instruction, completing the prompt that the rear side collision detection is closed or the rear side collision detection threshold is reduced from the current collision detection threshold to the preset collision threshold.
In addition, in order to achieve the above object, the present invention also provides a safety control device based on a trailer state, the safety control device based on a trailer state comprising:
the detection module is used for detecting the trailer state of the current vehicle;
and the processing module is used for closing the rear side collision detection or increasing the rear side collision detection threshold value from the current collision detection threshold value to a preset collision threshold value when the trailer state is detected to be the trailer connection.
In addition, in order to achieve the above object, the present invention also proposes a trailer state-based safety control device, comprising: the system comprises a memory, a processor and a trailer state based safety control program stored on the memory and executable on the processor, the trailer state based safety control program configured to implement the steps of the trailer state based safety control method as described above.
In addition, in order to achieve the above object, the present invention also proposes a storage medium having stored thereon a trailer-state-based safety control program which, when executed by a processor, implements the steps of the trailer-state-based safety control method as described above.
The invention detects the trailer state of the current vehicle; and when the trailer state is detected to be trailer connection, closing the rear side collision detection or increasing the rear side collision detection threshold from the current collision detection threshold to a preset collision threshold. Through the scheme, the detection process of collision is adjusted according to the state of the trailer, the influence of loading the trailer on the actual passive safety function of the vehicle is avoided, the misjudgment probability is reduced, and the driving safety of the vehicle and the driving experience of a user are improved.
Drawings
FIG. 1 is a schematic diagram of a trailer state based safety control device for a hardware operating environment in accordance with an embodiment of the present invention;
FIG. 2 is a flow chart of a first embodiment of a trailer-based safety control method of the present invention;
FIG. 3 is a flow chart of a second embodiment of the trailer-based safety control method of the present invention;
fig. 4 is a block diagram showing the construction of a first embodiment of the trailer-state-based safety control device of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a trailer state-based safety control device of a hardware running environment according to an embodiment of the present invention.
As shown in fig. 1, the trailer state-based safety control device may include: a processor 1001, such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (Wi-Fi) interface). The Memory 1005 may be a high-speed random access Memory (Random Access Memory, RAM) Memory or a stable nonvolatile Memory (NVM), such as a disk Memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
It will be appreciated by those skilled in the art that the configuration shown in fig. 1 does not constitute a limitation of the trailer-state based safety control device, and may include more or fewer components than shown, or certain components in combination, or a different arrangement of components.
As shown in fig. 1, an operating system, a network communication module, a user interface module, and a trailer state-based security control program may be included in the memory 1005 as one storage medium.
In the trailer-state based security control apparatus shown in fig. 1, 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 may be disposed in the trailer state-based safety control device, where the trailer state-based safety control device invokes a 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 by the embodiment of the present invention.
The embodiment of the invention provides a safety control method based on a trailer state, and referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the safety control method based on the trailer state.
In this embodiment, the trailer state-based safety control method includes the following steps:
step S10: the trailer status of the current vehicle is detected.
The execution body of the embodiment is a vehicle-mounted intelligent terminal, which may be a passive safety control system of a vehicle, a vehicle controller, or other devices with the same or similar functions as the passive safety control system, and the embodiment is not limited thereto, and only a server is used as an example for illustration.
It should be noted that, this embodiment is applied to the vehicle that has the trailer function, along with the great heat of car camping and self-driving tour culture, more and more vehicles begin to develop the trailer function after to realize the ability that the vehicle drags the trailer to travel, thereby satisfy the better carrier demand of camping and self-driving tour of customer. Because the current automobile is provided with the forward collision recognition function, the lateral collision recognition function and the backward collision recognition function for guaranteeing the safety of passengers, if the automobile collides in the running process of the automobile, a collision sensor arranged on the automobile body can send a perceived collision acceleration signal to an air bag control unit, and when the threshold value of the ignition of the safety belt and the air bag is reached, the control unit can excite the ignition current to ignite the corresponding safety belt and the air bag, so that the protection of the passengers in the collision process is realized. However, when the vehicle is in the trailer mode, a situation of unsynchronized running, such as sudden deceleration of the front vehicle, sudden acceleration of the front vehicle, etc., occurs between the rear trailer and the front vehicle, and the rear trailer generates an impact to the front vehicle due to inertial movement, and at this time, the acceleration sensor on the vehicle body senses the impact signal, which may be recognized as a rear collision by the airbag control unit, thereby causing erroneous ignition of the safety belt or the airbag. And when the vehicle is behind a rear trailer, a rear collision generally occurs only on the rear trailer, and the front vehicle is not directly rear-collided. So in this driving mode, the belt or airbag implosion is not acceptable to the customer and incorrect belt or airbag implosion may also cause additional injury to the occupant. Based on the above, the present embodiment provides a safety control strategy to avoid erroneous recognition of the vehicle caused by such a trailer.
It is understood that a trailer refers to an additional vehicle that is connected by a connection device (e.g., a trailer hitch) or a car towing device (e.g., a trailer hitch). Trailers are commonly used to transport cargo or provide other specific functions.
The trailer state can be detected by an electronic trailer system, wherein the mechanism can be opened and closed manually, and a locking mechanism is provided for connecting and releasing the rear trailer. The locking mechanism can avoid the change of the connection state caused by external vibration and interference. When in an open state and a closed state, electrical signals of different states can be generated, and the locking mechanism and the states can be electrically identified. Further, the control unit may be identified by the trailer status, such as: the electric signal of the electronic trailer equipment is used for identifying whether the vehicle is in a trailer state or a non-trailer state and in a locked state or an unlocked state, and the signal can be sent out through the whole vehicle communication network to determine whether the trailer exists.
Step S20: and when the trailer state is detected to be trailer connection, closing the rear side collision detection or increasing the rear side collision detection threshold from the current collision detection threshold to a preset collision threshold.
It should be noted that when the trailer state is detected as being a trailer connection, it is indicated that the vehicle is already connected to the trailer, and the passive safety system needs to be controlled at this time, and the following preferred embodiments are provided, for example: the rear side collision detection is closed, so that the passive safety function is not touched by mistake no matter how the rear side trailer collides, and the rear side collision detection device is convenient and simple to set.
It should be understood that this embodiment further proposes another scheme, for example: the rear-side collision detection threshold is increased from the current collision detection threshold to a preset collision threshold. The current collision threshold is a threshold for detecting whether a rear collision exists under normal conditions, and the type of the rear collision detection threshold is mainly determined according to a sensor for collision detection, for example: when the pressure sensor detects collision, the rear side collision detection threshold is the pressure threshold of the pressure sensor, and when the trailer state is detected to be the trailer connection, the rear side collision detection threshold is increased from the current collision detection threshold to a preset collision threshold. The preset collision threshold is larger than the current collision detection threshold, so that the passive safety control system cannot be started easily when the trailer impacts the current vehicle.
It will be appreciated that the purpose of the preset collision threshold being greater than the current collision detection threshold is to reduce the sensitivity of the rear side collision detection, which is likely to be frequently impacted by the presence of the trailer, and to be prone to false positives if the rear side collision detection is too sensitive.
In a specific implementation, the benefit of setting a preset collision threshold compared with directly closing the rear side collision detection is that if the vehicle actually encounters a collision, the higher preset collision threshold still can complete the collision detection, may not be sensitive to the initial collision threshold detection, but can still trigger the active protection mechanism after the vehicle is collided while avoiding false contact, so that the safety of the trailer connection is improved.
In some embodiments, before the increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold, the method further includes: acquiring trailer information and trailer load information; and determining a preset collision threshold according to the trailer information and the trailer load information.
It should be noted that this embodiment proposes a more accurate scheme for determining the preset collision threshold, for example: the preset collision threshold is determined according to trailer information and trailer load information, because the model of the trailer and the like have different effects on the trailer, for example: different friction coefficients, vehicle weights and vehicle structures can have different influences on the impact effect of the vehicle, so that the trailer can be calibrated. The mapping relation between the loading condition and the collision threshold value is determined according to different vehicle model numbers, for example: the method comprises the steps of calibrating a trailer of a model A, testing the detection size of a sensor when the trailer impacts a vehicle under different loads by taking each 100KG as granularity, and setting a preset collision threshold value based on the maximum threshold value triggered by the collision sensor so as to ensure that the trailer can not trigger the identification of rear side collision under a normal driving scene. The user can set the type of the trailer through the system, and the load of the trailer is determined through a sensor on the trailer, so that a differential preset collision threshold value is obtained.
In a specific implementation, the advantage of setting a higher preset collision threshold compared with directly closing the rear side collision detection is that if the vehicle actually encounters a collision, the higher preset collision threshold still can complete the collision detection, possibly has no sensitivity of initial collision threshold detection, but can still trigger the active protection mechanism while avoiding false contact, the safety during the trailer connection is further improved through calibration by trailer information and trailer load, the rear side collision can still be detected according to the preset collision threshold set by the trailer information and the trailer load information, and no matter how many types of the rear side trailer load are geometric, a reasonable preset collision threshold setting can still be designed, so the embodiment is provided as a preferred scheme of the preset collision threshold setting in the current scheme.
The process of acquiring trailer information may be, for example: the user selects the trailer model, or the image or the marker of the trailer is identified by the image acquisition equipment, and after the trailer model is determined, the user can access various parameter information of the trailer in an online mode so as to obtain complete trailer information; the acquisition process of trailer load information may be, for example: the weight of each axle is measured by axle weight sensors mounted on the chassis of the trailer, which can detect the weight of the axle and in combination with the structure and layout of the vehicle estimate the load capacity of the whole vehicle, or many trailers typically have suspension systems, the load capacity can be detected by sensors mounted on the suspension devices, which can measure parameters such as the pressure, deformation or displacement of the suspension devices and calculate the load capacity by algorithms. The embodiment is not limited to a specific acquisition mode.
In some embodiments, before the increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold, the method further includes: acquiring trailer information and trailer load information; determining a collision threshold control curve according to the trailer information and the trailer load information; acquiring the running speed of the current vehicle; and inputting the running speed into a collision threshold control curve to determine a preset collision threshold.
It should be noted that this embodiment proposes a further optimization scheme to dynamically control the preset collision threshold more precisely, and further determine the preset collision threshold according to the speed, because, when the speed is fast, if the speed change occurs, the collision impact force of the trailer is large due to inertia, but the collision between the trailer and the vehicle is hardly generated when the vehicle is in a parking state or is slow, so the preset collision threshold can be set smaller or returns to normal, so the embodiment proposes the following preferred scheme: different friction coefficients, vehicle weights and vehicle structures can have different influences on the impact effect of the vehicle, so that the trailer can be calibrated. The mapping relation between the loading condition and the collision threshold value is determined according to different vehicle model numbers, for example: the method comprises the steps of calibrating a trailer of a model A, testing the corresponding relation between the detection size of a sensor and the vehicle speed when the trailer impacts a vehicle under different loads by taking each 100KG as granularity, for example, testing the numerical value of the sensor when the trailer impacts the current vehicle when braking at a normal braking speed under each speed when the trailer of the model A is loaded at 300KG, setting a preset collision threshold value based on the numerical value triggered by a collision sensor, and drawing the corresponding relation between the speed and the numerical value of the sensor when the trailer impacts the current vehicle into a collision threshold value control curve so as to ensure that the judgment of rear side collision of the trailer can not be triggered under a normal driving scene. The user can set the type of the trailer through the system, the load of the trailer is determined through a sensor on the trailer, a differentiated collision threshold control curve is obtained, the vehicle only needs to dynamically adjust rear side collision detection according to the collision threshold control curve, the process of adjusting the preset collision threshold according to the driving speed is suggested to be delayed for a period of time, and the situation that the instant preset collision threshold is about to change to cause misjudgment is ensured.
In some embodiments, after detecting the trailer state of the current vehicle, the method further comprises: when the trailer state is detected to be trailer connection, acquiring trailer load information; and determining a running speed threshold according to the trailer load information, and controlling the running speed of the vehicle according to the running speed threshold.
It should be noted that, when the trailer is used, the present embodiment proposes a vehicle speed limiting scheme, because the presence of the trailer may affect the running performance and handling capability of the vehicle, and may increase the running risk, for example: the presence of the trailer increases the overall length and weight of the vehicle, affecting its stability. At high speeds or cornering, the oscillations and inertial forces of the trailer may cause the vehicle to lose balance, increasing the risk of rollover or runaway. The weight of the trailer increases the braking distance of the entire vehicle. In emergency braking or in sudden situations, an increase in braking distance may result in the vehicle not being able to stop in time, increasing the risk of collision. The weight of the trailer can have an impact on 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, the speed of the trailer may be dynamically limited according to the load information of the vehicle, for example: after receiving the trailer state signal, the power system controller starts an automatic speed limiting function, determines a speed limiting running speed threshold according to the load information of the trailer so as to ensure that the running speed of the vehicle is lower than the speed threshold, and the power system controller is a power-related control unit, receives the trailer state signal from a vehicle network and intelligently limits the speed according to the signal state.
Further, the present embodiment may be extended to control in the scenes of an airbag, autopilot, etc., for example: after the air bag controller receives the trailer state signal, the rear collision algorithm is automatically closed, the rear collision is not triggered after the rear collision is closed, and the safety belt and the air bag are not ignited. After the safety airbag controller closes the back collision ignition function, the state signal is sent to the instrument, and the instrument receives the signal and then carries out instrument popup prompt: the back collision function is closed, and the driver is cautiously driven, so that the driver is reminded and warned. Meanwhile, after the back collision ignition function is closed, the linkage action of the front car safety belt can be controlled according to the acceleration signal sensed by the car body sensor, and when larger rear impact is sensed, the active tightening type safety belt is excited to fix a front car passenger on a seat, so that the damage to the front car passenger caused by the larger collision of the rear trailer is avoided. Secondly, after receiving the trailer state signal, the automatic driving controller automatically closes the self-driving function; or after the power system controller receives the trailer state signal, the automatic speed limiting function is started.
In some embodiments, the automatic driving controller may automatically turn off all the self-driving functions when the vehicle is hung, so as to avoid injuries to the vehicle and personnel caused by improper opening of the user. Meanwhile, when the vehicle is hung, the power system controller can automatically limit the highest speed of the vehicle, so that the vehicle can be intelligently kept to run below the safe speed, and traffic accidents caused by high-speed driving of a user are avoided.
In some embodiments, 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 as the trailer connection, the method further includes: generating a rear side collision detection prompt instruction when the rear side collision detection is closed or the rear side collision detection threshold is reduced from the current collision detection threshold to a preset collision threshold; and according to the rear side collision detection prompt instruction, completing the prompt that the rear side collision detection is closed or the rear side collision detection threshold is reduced from the current collision detection threshold to the preset collision threshold.
It should be noted that, since the shutdown of the rear side collision detection or the shutdown of the passive safety system may result in the shutdown of the safety function portion, the user should be reminded to pay appropriate attention or confirm to prompt the user about which functions have been changed, and because of the safety function, a certain prompt may be made to greatly increase the attention of the driver and improve the safety, specifically, when the rear side collision detection shutdown or the rear side collision detection threshold is detected to be reduced 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 completes the prompt corresponding to the reduction of the rear side collision detection shutdown or the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold.
The embodiment detects the trailer state of the current vehicle; and when the trailer state is detected to be trailer connection, closing the rear side collision detection or increasing the rear side collision detection threshold from the current collision detection threshold to a preset collision threshold. Through the scheme, the detection process of collision is adjusted according to the state of the trailer, the influence of loading the trailer on the actual passive safety function of the vehicle is avoided, the misjudgment probability is reduced, and the driving safety of the vehicle and the driving experience of a user are improved.
Referring to fig. 3, fig. 3 is a flowchart of a second embodiment of a trailer-state-based safety control method according to the present invention.
Based on the first embodiment, the trailer state-based safety control method of the present embodiment further includes, after the step S20:
step S201: vehicle acceleration is acquired.
It should be noted that, the vehicle acceleration refers to the increased speed of the vehicle in a unit time, and the specific acquisition process may be: collision acceleration sensor: the collision acceleration of the vehicle body is identified, and real-time communication and data transmission are maintained with the airbag controller.
Step S202: and safety control is carried out according to the vehicle acceleration.
Among them, there are many passive safety control modes, for example: the safety air bag controller, collision recognition and ignition trigger control unit, receive trailer state signal from the network to open or close back collision function according to this signal state, send out back collision function state through whole car communication network simultaneously, the safety air bag system is one of the common passive safety device in the vehicle, when the vehicle bumps, the air bag can aerify rapidly, provides extra protection for the passenger, reduces the injury at positions such as head, chest and belly. And actively tightening the safety belt, which can fix the passengers on the seat, reduce the body movement during collision, avoid striking the structures in the vehicle or other passengers, and reduce the injury. The automatic braking system is an important component of passive safety, and the efficient braking system can reduce the impact force during collision, shorten the parking distance and provide better braking performance and operability. The vehicle body stability system, the stability of the vehicle and the design of the suspension system can reduce the risk of rollover and out of control during collision, and better operability and stability are provided. In order to avoid that these functions are not triggered by the rear-side collision detection, the vehicle acceleration may be subjected to safety control.
It should be noted that, when the rear side collision detection is turned off or the sensing capability is weakened, an auxiliary collision detection means which does not affect the collision is turned on, so that the safety airbag is not frequently triggered while a certain sensing capability is reserved for collision detection.
In some embodiments, the active cinching harness is activated when the vehicle acceleration is greater than a preset acceleration threshold.
The safety protection can be immediately carried out by matching with the active tightening type safety belt, and the user can be protected to a certain extent when a slight collision is received, because even if a trailer collides, the safety or comfort of the user can be influenced to a certain extent, and therefore, the safety can be protected to a certain extent by adopting the minimum passive safety measures.
The present embodiment acquires vehicle acceleration; and safety control is carried out according to the vehicle acceleration. By the method, after the rear side collision detection is closed or the rear side collision detection threshold value is increased from the current collision detection threshold value to the preset collision threshold value, an auxiliary collision detection means which does not affect collision is still maintained, and safety protection is carried out by matching with the active tightening type safety belt, so that the safety airbag is not triggered frequently while a certain sensing capability is reserved for collision detection, the safety of a user is ensured through a certain limited passive safety measure, and the safety of a vehicle during a trailer is improved.
In addition, the embodiment of the invention also provides a storage medium, wherein the storage medium stores a safety control program based on the trailer state, and the safety control program based on the trailer state realizes the steps of the safety control method based on the trailer state when being executed by a processor.
Referring to fig. 4, fig. 4 is a block diagram showing the construction of a first embodiment of the trailer-state-based safety control device of the present invention.
As shown in fig. 4, a trailer state-based safety control device according to an embodiment of the present invention includes:
a detection module 10 for detecting a trailer state of a current vehicle;
and the processing module 20 is used for closing the rear side collision detection or increasing the rear side collision detection threshold value from the current collision detection threshold value to a preset collision threshold value when the trailer state is detected to be the trailer connection.
It should be understood that the foregoing is illustrative only and is not limiting, and that in specific applications, those skilled in the art may set the invention as desired, and the invention is not limited thereto.
The detection module 10 of the present embodiment is configured to detect a trailer state of a current vehicle; and the processing module 20 is used for closing the rear side collision detection or increasing the rear side collision detection threshold value from the current collision detection threshold value to a preset collision threshold value when the trailer state is detected to be the trailer connection. Through the scheme, the detection process of collision is adjusted according to the state of the trailer, the influence of loading the trailer on the actual passive safety function of the vehicle is avoided, the misjudgment probability is reduced, and the driving safety of the vehicle and the driving experience of a user are improved.
In some embodiments, the processing module 20 is further configured to obtain trailer information and trailer load information;
and determining a preset collision threshold according to the trailer information and the trailer load information.
In some embodiments, the processing module 20 is further configured to obtain trailer information and trailer load information;
determining a collision threshold control curve according to the trailer information and the trailer load information;
acquiring the running speed of the current vehicle;
and inputting the running speed into a collision threshold control curve to determine a preset collision threshold.
In some embodiments, the processing module 20 is further configured to obtain vehicle acceleration;
and safety control is carried out according to the vehicle acceleration.
In some embodiments, the processing module 20 is further configured to activate an active tightening seat belt when the vehicle acceleration is greater than a preset acceleration threshold.
In some embodiments, the processing module 20 is further configured to obtain trailer load information when the trailer status is detected as a trailer connection;
and determining a running speed threshold according to the trailer load information, and controlling the running speed of the vehicle according to the running speed threshold.
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 off or the rear side collision detection threshold is reduced from the current collision detection threshold to a preset collision threshold;
and according to the rear side collision detection prompt instruction, completing the prompt that the rear side collision detection is closed or the rear side collision detection threshold is reduced from the current collision detection threshold to the preset collision threshold.
It should be noted that the above-described working procedure is merely illustrative, and does not limit the scope of the present invention, and in practical application, a person skilled in the art may select part or all of them according to actual needs to achieve the purpose of the embodiment, which is not limited herein.
In addition, technical details not described in detail in the present embodiment may refer to the trailer state-based safety control method provided in any embodiment of the present invention, which is not described herein.
Furthermore, it should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. Read Only Memory)/RAM, magnetic disk, optical disk) and including several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (10)
1. The safety control method based on the trailer state is characterized by comprising the following steps of:
detecting the trailer state of the current vehicle;
and when the trailer state is detected to be trailer connection, closing the rear side collision detection or increasing the rear side collision detection threshold from the current collision detection threshold to a preset collision threshold.
2. The method of claim 1, wherein before increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold, further comprising:
acquiring trailer information and trailer load information;
and determining a preset collision threshold according to the trailer information and the trailer load information.
3. The method of claim 1, wherein before increasing the rear side collision detection threshold from the current collision detection threshold to the preset collision threshold, further comprising:
acquiring trailer information and trailer load information;
determining a collision threshold control curve according to the trailer information and the trailer load information;
acquiring the running speed of the current vehicle;
and inputting the running speed into a collision threshold control curve to determine a preset collision threshold.
4. The method of claim 1, wherein after turning off rear side collision detection or increasing a rear side collision detection threshold from a current collision detection threshold to a preset collision threshold upon detecting that the trailer condition is a trailer connection, further comprising:
acquiring vehicle acceleration;
and safety control is carried out according to the vehicle acceleration.
5. The method of claim 4, wherein said passively safety control according to said vehicle acceleration information comprises:
and when the vehicle acceleration is larger than a preset acceleration threshold value, exciting the active tightening type safety belt.
6. The method of claim 1, wherein after detecting the trailer status of the current vehicle, further comprising:
when the trailer state is detected to be trailer connection, acquiring trailer load information;
and determining a running speed threshold according to the trailer load information, and controlling the running speed of the vehicle according to the running speed threshold.
7. The method of any one of claims 1-6, wherein after turning off rear side collision detection or increasing a rear side collision detection threshold from a current collision detection threshold to a preset collision threshold upon detecting that the trailer condition is a trailer hitch, further comprising:
generating a rear side collision detection prompt instruction when the rear side collision detection is closed or the rear side collision detection threshold is reduced from the current collision detection threshold to a preset collision threshold;
and according to the rear side collision detection prompt instruction, completing the prompt that the rear side collision detection is closed or the rear side collision detection threshold is reduced from the current collision detection threshold to the preset collision threshold.
8. A trailer-condition-based safety control device, comprising:
the detection module is used for detecting the trailer state of the current vehicle;
and the processing module is used for closing the rear side collision detection or increasing the rear side collision detection threshold value from the current collision detection threshold value to a preset collision threshold value when the trailer state is detected to be the trailer connection.
9. A trailer-condition-based safety control apparatus, the apparatus comprising: a memory, a processor and a trailer state based safety control program stored on the memory and executable on the processor, the trailer state based safety control program being configured to implement the steps of the trailer state based safety control method as claimed in any one of claims 1 to 7.
10. A storage medium, characterized in that the storage medium has stored thereon a trailer-state-based safety control program, which, when executed by a processor, implements the steps of the trailer-state-based safety control method as claimed in any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311645853.6A CN117465428A (en) | 2023-12-01 | 2023-12-01 | Trailer state based safety control method, device, equipment and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311645853.6A CN117465428A (en) | 2023-12-01 | 2023-12-01 | Trailer state based safety control method, device, equipment and storage medium |
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| CN117465428A true CN117465428A (en) | 2024-01-30 |
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| CN202311645853.6A Pending CN117465428A (en) | 2023-12-01 | 2023-12-01 | Trailer state based safety control method, device, equipment and storage medium |
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