Vehicle door unlocking method, device and equipment and storage medium

Abstract

The invention discloses a vehicle door unlocking method, device and equipment and a storage medium, relates to the technical field of vehicles, and discloses a vehicle door unlocking method which comprises the steps that when the current state of a target vehicle is a target falling-into-water state, the running state of a vehicle door lock is obtained; when the running state of the automobile door lock is a locking state, an automobile door unlocking signal is generated; and a door lock of the target vehicle is controlled to be unlocked according to the vehicle door unlocking signal, and a vehicle door of the target vehicle is controlled to be opened according to the target opening force duty ratio of the driving mechanism. By means of the mode, when it is determined that the target vehicle is in the water falling state, the vehicle door lock is controlled to be unlocked according to the vehicle door unlocking signal, the vehicle door is controlled to be opened according to the target opening force duty ratio of the driving mechanism, extra switching signal input is not needed, and the electric vehicle door can be immediately and automatically opened when the vehicle falls into water; therefore, people can rapidly evacuate from the vehicle, the risk that the vehicle door cannot be opened due to water pressure is avoided, and casualties are reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle door unlocking method, device, equipment and storage medium. Background Art

[0002] When a vehicle falls into water in an emergency, people are often in a state of tension. They want to open the door as soon as possible. At the same time, due to the sinking of the vehicle and the pressure difference between the inside and outside, people in the car cannot open the door and cannot escape by themselves. They need rescuers outside to open the door and help rescue from the car. At this time, time is urgent, and rescuers often cannot open the door in the first time, which affects the rescue efficiency. In particular, for the increasing number of electric suction and release doors and hidden door handles equipped with new energy vehicles, due to certain factors, the hidden handles cannot be ejected or stuck, and the doors are inconvenient to open from outside the car, which affects the rescue time and causes serious casualties of people falling into the water. At present, when a vehicle falls into water, only the window glass can be opened, and people need to climb out of the glass. If the co-pilot or the back seat are inconvenient to move, it is difficult to escape. Therefore, when a vehicle falls into water, how to efficiently open the door and quickly evacuate the vehicle is an urgent problem to be solved.

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

[0004] The main purpose of the present application is to provide a vehicle door unlocking method, device, equipment and storage medium, aiming to solve the technical problem of how to efficiently open the vehicle door and quickly evacuate the vehicle when the vehicle falls into water.

[0005] To achieve the above purpose, the present application proposes a vehicle door unlocking method, the method comprising:

[0006] When the current state of the target vehicle is the target water-falling state, obtaining the door lock operation state;

[0007] When the door lock is in a locked state, generating a door unlocking signal;

[0008] The door lock of the target vehicle is controlled to be unlocked according to the door unlocking signal, and the door of the target vehicle is controlled to be opened according to the target opening force duty ratio of the driving mechanism.

[0009] In one embodiment, when the current state of the target vehicle is the target water-falling state, before obtaining the door lock operation state, the method further includes:

[0010] Determine the current pressure value according to the water pressure data collected by the water pressure sensor;

[0011] Determine the current vehicle slope based on the slope data collected by the slope sensor;

[0012] Determine the current acceleration according to the acceleration data collected by the collision acceleration sensor;

[0013] A state judgment is performed based on the current pressure value, the current vehicle slope and the current acceleration to determine the current state of the target vehicle.

[0014] In one embodiment, the state judgment is performed according to the current pressure value, the current vehicle slope and the current acceleration to determine the current state of the target vehicle, including:

[0015] When the current pressure value is greater than a preset pressure threshold, performing slope detection according to the current vehicle slope and a preset slope range;

[0016] When the current vehicle slope is within the preset slope range, performing acceleration detection according to the current acceleration and the preset acceleration value;

[0017] When the current acceleration is a preset acceleration value, determining a state duration;

[0018] The current state of the target vehicle is determined according to the state duration.

[0019] In one embodiment, determining the current state of the target vehicle according to the state duration includes:

[0020] When the duration of the state exceeds a preset time threshold, determining that the current state of the target vehicle is a target falling-into-water state;

[0021] When the state duration does not exceed the preset time threshold, it is determined that the current state of the target vehicle is not the target water-falling state.

[0022] In one embodiment, controlling the door opening of the target vehicle according to the target opening force duty ratio of the driving mechanism includes:

[0023] Determine the target opening force duty cycle of the drive mechanism, the limiter opening force and the unlocking time window according to the door unlocking strategy;

[0024] The door opening of the target vehicle is controlled according to the target opening force duty cycle, the limiter opening force and the unlocking time window.

[0025] In one embodiment, after controlling the door lock of the target vehicle to unlock according to the door unlock signal and controlling the door of the target vehicle to open according to the target opening force duty ratio of the driving mechanism, the method further includes:

[0026] Detecting the current status of the seat belts of the target vehicle;

[0027] When the current state of the seat belt is a locked state, generating a seat belt unlocking signal;

[0028] The seat belt of the target vehicle is controlled to spring open according to the seat belt unlocking signal.

[0029] In one embodiment, after controlling the door lock of the target vehicle to unlock according to the door unlock signal and controlling the door of the target vehicle to open according to the target opening force duty ratio of the driving mechanism, the method further includes:

[0030] Generate a vehicle light control signal and water-falling alarm information according to the target water-falling state;

[0031] The headlights of the target vehicle are controlled to turn on according to the headlight control signal, and the water-fall alarm information is sent to the terminal where the rescue personnel are located.

[0032] In addition, to achieve the above-mentioned purpose, the present application also proposes a vehicle door unlocking device, the vehicle door unlocking device comprising: an acquisition module, used to acquire the vehicle door lock operation state when the current state of the target vehicle is the target water-falling state;

[0033] A generating module, used for generating a door unlocking signal when the door lock is in a locked state;

[0034] The unlocking module is used to control the door lock of the target vehicle to unlock according to the door unlocking signal, and to control the door of the target vehicle to open according to the target opening force duty cycle of the driving mechanism.

[0035] In addition, to achieve the above-mentioned purpose, the present application also proposes a vehicle door unlocking device, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the vehicle door unlocking method described above.

[0036] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the vehicle door unlocking method described above are implemented.

[0037] The present application provides a door unlocking method, which obtains the door lock operating state when the current state of the target vehicle is the target water-falling state; generates a door unlocking signal when the door lock operating state is the locked state; controls the door lock of the target vehicle to be unlocked according to the door unlocking signal, and controls the door opening of the target vehicle according to the target opening force duty ratio of the driving mechanism. In the above manner, when it is determined that the target vehicle is in the water-falling state, the door lock operating state is determined, and when the door lock operating state is the locked state, the door lock is controlled to be unlocked according to the door unlocking signal, and the door opening is controlled according to the target opening force duty ratio of the driving mechanism, so that the electric door can be automatically opened immediately when falling into the water without the need for additional switch signal input, so that people can quickly evacuate the vehicle, avoid the risk of the door being unable to open due to water pressure, and reduce casualties. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0039] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0040] Figure 1 A schematic diagram of a process flow provided for the first embodiment of the vehicle door unlocking method of the present application;

[0041] Figure 2 A schematic diagram of a flow chart provided for the second embodiment of the vehicle door unlocking method of the present application;

[0042] Figure 3 This is a schematic diagram of the module structure of the door unlocking device according to an embodiment of the present application;

[0043] Figure 4 Schematic diagram of the device structure of the hardware operating environment involved in the vehicle door unlocking method in the embodiment of the present application.

[0044] The purpose, features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0045] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0046] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0047] The main solution of the embodiment of the present application is: when the current state of the target vehicle is the target water-falling state, obtaining the door lock operating state; when the door lock operating state is the locked state, generating a door unlocking signal; controlling the door lock of the target vehicle to unlock according to the door unlocking signal, and controlling the door opening of the target vehicle according to the target opening force duty cycle of the driving mechanism.

[0048] With regard to the increasing number of electric doors and hidden door handles equipped in new energy vehicles, due to certain factors, the hidden handles cannot be popped out or are stuck, making it difficult to open the doors from outside the vehicle, which affects the rescue time and leads to serious casualties of people falling into the water. Currently, when a vehicle falls into the water, the only way to open the window glass is to climb out of the glass. If the co-pilot or the back seat is inconvenient to move, it is difficult to escape.

[0049] The present application determines the operating state of the door lock when it is determined that the target vehicle is in a state of falling into water. When the operating state of the door lock is in a locked state, the door lock is unlocked according to a door unlocking signal, and the door opening is controlled according to a target opening force duty cycle of the driving mechanism. This achieves the goal of not requiring additional switch signal input, and the electric door can be automatically opened immediately when falling into water, thereby allowing people to quickly evacuate the vehicle, avoiding the risk of the door being unable to be opened due to water pressure, and reducing casualties.

[0050] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, a door unlocking device, etc. The following takes the door unlocking device as an example to illustrate this embodiment and the following embodiments.

[0051] Based on this, the embodiment of the present application provides a door unlocking method, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the vehicle door unlocking method of the present application.

[0052] In this embodiment, the method includes steps S10 to S30:

[0053] Step S10, when the current state of the target vehicle is the target water-falling state, obtaining the door lock operation state;

[0054] It should be noted that the target vehicle is integrated with a door assembly, an electric door drive mechanism, an electric door controller, a collision acceleration sensor, a vehicle slope sensor, and a water pressure sensor. In this embodiment, the water pressure sensor can be designed on the door plastic part, with a design height of h1, which can be set to less than 800-1000 mm from the ground, or can be set to other values, which is not limited in this embodiment.

[0055] It can be understood that the current state of the target vehicle is judged through the data collected by the collision acceleration sensor, the vehicle slope sensor and the water pressure sensor. When the data collected by the three meet the conditions for falling into water, it is determined that the target vehicle has fallen into water, and the current state of the target vehicle is the target falling into water state.

[0056] In a specific implementation, when the BCM (Body Control Module) recognizes that the target vehicle is in a target water-falling state, the BCM obtains the operating state of the door locks, which includes the central control state and the child lock state. The door locks include the central control lock and the child lock.

[0057] Step S20, when the door lock is in a locked state, generating a door unlocking signal;

[0058] It should be noted that when the child lock state is locked, or the central control state is locked, or both are locked, it means that the door lock operation state is locked. When the door lock operation state is locked, a door unlocking signal is generated.

[0059] Step S30, controlling the door lock of the target vehicle to unlock according to the door unlocking signal, and controlling the door of the target vehicle to open according to the target opening force duty ratio of the driving mechanism.

[0060] It should be noted that the door lock of the target vehicle is unlocked according to the door unlocking signal, and at the same time, the BCM sends a water fall signal to the electric door controller, and the electric door controller controls the opening force duty ratio of the electric door drive mechanism to be adjusted to the target opening force duty ratio. In this embodiment, the target opening force duty ratio of the electric door drive mechanism is a set value. Under normal circumstances, the opening force of the drive mechanism is 30N, and the opening force duty ratio is about 1 / 15 to open the door. In this embodiment, the target opening force duty ratio is set to 0%, and the opening force is increased to an extreme value of 500N.

[0061] It is understandable that the electric door drive mechanism controls the door opening of the target vehicle according to the target opening force duty cycle, and no additional switch signal input is required to unlock the door.

[0062] In a feasible implementation manner, in step S30: controlling the door opening of the target vehicle according to the target opening force duty ratio of the driving mechanism may further include steps A11 to A12:

[0063] Step A11, determining a target opening force duty cycle of the drive mechanism, a limiter opening force, and an unlocking time window according to a door unlocking strategy;

[0064] Step A12, controlling the door opening of the target vehicle according to the target opening force duty cycle, the limiter opening force and the unlocking time window.

[0065] It should be noted that the door unlocking strategy is a set door unlocking method when the vehicle falls into water. In this embodiment, the door unlocking strategy includes adjusting the opening force duty ratio of the electric door drive mechanism to the target opening force duty ratio, allowing the electric limiter to provide an opening force of 150N, and increasing the door unlocking time window. In this embodiment, the opening force provided by the electric limiter is the limiter opening force.

[0066] It is understandable that the electric door drive mechanism and the electric limiter continue to provide opening force and extend the length of time the door remains unlocked to cope with the internal and external pressure difference. Specifically, when the electric door controller determines that the target vehicle falls into the water, the opening force duty cycle of the electric door drive mechanism is adjusted to 0%, and the opening force increases to an extreme value of 500N. At the same time, the electric limiter provides an opening force of 150N, through which the door of the target vehicle is forced to open to a predetermined angle. In this state, the door unlocking time window is adjusted at the same time, and the length of time the door remains unlocked is extended. The electric drive mechanism and the limiter continue to provide opening force to cope with the internal and external pressure difference.

[0067] This embodiment determines the target opening force duty ratio of the driving mechanism, the limiter opening force and the unlocking time window according to the door unlocking strategy; and controls the door opening of the target vehicle according to the target opening force duty ratio, the limiter opening force and the unlocking time window. In this way, the door can be quickly unlocked without the need for additional switch signal input, so that the driver and passengers can push open the door and quickly evacuate the vehicle.

[0068] The above is only one feasible implementation method of controlling the door opening of the target vehicle according to the target opening force duty ratio of the driving mechanism in step S30 provided in this embodiment. This embodiment does not specifically limit the specific implementation method of step S30.

[0069] In a feasible implementation manner, after step S30, steps B11 to B13 may also be included:

[0070] Step B11, detecting the current status of the seat belt of the target vehicle;

[0071] Step B12, when the current state of the seat belt is a locked state, generating a seat belt unlocking signal;

[0072] Step B13, controlling the seat belt of the target vehicle to spring open according to the seat belt unlocking signal.

[0073] It should be noted that after determining that the target vehicle is in the target water-falling state, the current state of the seat belts of the target vehicle is obtained in time, and the current state of the seat belts can reflect whether the seat belts on the target vehicle are in a locked state. When the current state of the seat belts is in a locked state, it indicates that the seat belts on the target vehicle are locked. At this time, a seat belt unlocking signal is generated, and the locked seat belts on the target vehicle are controlled to pop open based on the seat belt unlocking signal.

[0074] In this embodiment, by detecting the current state of the seat belt of the target vehicle; generating a seat belt unlocking signal when the seat belt is currently locked; and controlling the seat belt of the target vehicle to spring open according to the seat belt unlocking signal. In this way, the driver and passengers of the target vehicle can evacuate quickly.

[0075] In a feasible implementation manner, after step S30, steps C11 to C12 may also be included:

[0076] Step C11, generating a vehicle light control signal and water-falling alarm information according to the target water-falling state;

[0077] Step C12, controlling the lights of the target vehicle to turn on according to the light control signal, and sending the water-fall alarm information to the terminal where the rescue personnel are located.

[0078] It should be noted that when it is determined that the target vehicle is in a target water-falling state, a headlight control signal and a water-falling alarm signal are generated based on the target water-falling state, and the headlight control signal is sent to the interior ambient light to control the interior ambient light of the target vehicle to turn on, thereby increasing the interior lighting and warning of the vehicle.

[0079] It is understandable that the water-falling alarm information includes the water-falling time and water-falling address, and the water-falling alarm information is sent to the terminal where the rescue personnel are located, so that the rescue personnel can promptly obtain relevant information about the target vehicle falling into the water and take rescue measures in time. In this embodiment, the rescue personnel can be set as a firefighter or an emergency contact set by the user.

[0080] In this embodiment, a headlight control signal and a water-falling alarm message are generated according to the target water-falling state; the headlights of the target vehicle are turned on according to the headlight control signal, and the water-falling alarm message is sent to the terminal where the rescuer is located. In this way, the safety of the vehicle is further improved.

[0081] This embodiment provides a door unlocking method. The method of this embodiment obtains the door lock operating state when the current state of the target vehicle is the target water-falling state; generates a door unlocking signal when the door lock operating state is the locked state; controls the door lock of the target vehicle to be unlocked according to the door unlocking signal, and controls the door opening of the target vehicle according to the target opening force duty ratio of the driving mechanism. In the above manner, when it is determined that the target vehicle is in the water-falling state, the door lock operating state is determined. When the door lock operating state is the locked state, the door lock is controlled to be unlocked according to the door unlocking signal, and the door opening is controlled according to the target opening force duty ratio of the driving mechanism, so that the electric door can be automatically opened immediately when falling into the water without the need for additional switch signal input, so that people can quickly evacuate the vehicle, avoid the risk of the door being unable to open due to water pressure, and reduce casualties.

[0082] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 2 Before step S10, the door unlocking method further includes steps S11 to S14:

[0083] Step S11, determining the current pressure value according to the water pressure data collected by the water pressure sensor;

[0084] Step S12, determining the current vehicle slope according to the slope data collected by the slope sensor;

[0085] Step S13, determining the current acceleration according to the acceleration data collected by the collision acceleration sensor;

[0086] Step S14, performing state judgment according to the current pressure value, the current vehicle slope and the current acceleration to determine the current state of the target vehicle.

[0087] It should be noted that the target vehicle is integrated with a door assembly, an electric door drive mechanism, an electric door controller, a collision acceleration sensor, a vehicle slope sensor, and a water pressure sensor. In this embodiment, the water pressure sensor can be designed on the door plastic part, with a design height of h1, which can be set to less than 800-1000 mm from the ground, or can be set to other values, which is not limited in this embodiment.

[0088] It can be understood that the current pressure value of the target vehicle is determined in real time based on the water pressure data collected by the water pressure sensor; the current vehicle slope of the target vehicle is determined in real time based on the slope data collected by the slope sensor; and the current acceleration of the target vehicle is determined in real time based on the acceleration data collected by the collision acceleration sensor. The current pressure value, current vehicle slope and current acceleration of the target vehicle are combined to judge the current state of the target vehicle.

[0089] In a feasible implementation manner, step S14 may further include steps D11 to D14:

[0090] Step D11, when the current pressure value is greater than a preset pressure threshold, performing slope detection according to the current vehicle slope and a preset slope range;

[0091] It should be noted that the preset pressure threshold refers to a preset pressure critical value. When the current pressure value is greater than the preset pressure threshold, it indicates that the target vehicle is at risk of falling into water. At this time, the slope detection is performed based on the current vehicle slope and the preset slope range to determine whether the current vehicle slope is within the preset slope range. In this embodiment, the preset pressure threshold can be set to ρgh1, where h1 is the design height of the water pressure sensor on the target vehicle. The preset slope range is the slope range corresponding to the set vehicle tilt. When the target vehicle falls into water or floods urgently, the front of the vehicle will tilt due to the weight, and the current vehicle slope will be within the preset slope range.

[0092] Step D12, when the current vehicle slope is within the preset slope range, performing acceleration detection according to the current acceleration and the preset acceleration value;

[0093] It should be noted that when the current vehicle slope is within the preset slope range, it indicates that the target vehicle has a further increased risk of falling into the water. At this time, acceleration detection is performed based on the current acceleration and the preset acceleration value to determine whether the current acceleration is the preset acceleration value. In this embodiment, the preset acceleration value can be set to 0m / s 2 .

[0094] Step D13, when the current acceleration is a preset acceleration value, determining a state duration;

[0095] It should be noted that when the current acceleration is a preset acceleration value, the duration corresponding to the current pressure value of the target vehicle being greater than the preset pressure threshold, the current vehicle slope being within the preset slope range, and the current acceleration being the preset acceleration value is obtained, and the above duration is the state duration.

[0096] Step D14, determining the current state of the target vehicle according to the state duration.

[0097] It should be noted that when the current pressure value of the target vehicle is greater than the preset pressure threshold, the current vehicle slope is within the preset slope range, the current acceleration is the preset acceleration value, and the state duration exceeds the preset time threshold, it means that the current state of the target vehicle is the target falling water state. In this embodiment, the preset time threshold can be set to 2s, or it can be set to other values, and this embodiment is not limited to this. When any of the following four conditions is not met: the current pressure value of the target vehicle is greater than the preset pressure threshold, the current vehicle slope is within the preset slope range, the current acceleration is the preset acceleration value, and the state duration exceeds the preset time threshold, it means that the current state of the target vehicle is not the target falling water state. At this time, the electric door controller will not drive the door to open, such as normal rain and flooding, parking on a slope, etc., to prevent the door from opening and causing people to fall out of the cabin involuntarily.

[0098] It can be understood that this embodiment can also make a judgment directly based on the current pressure value, the current vehicle slope and the current acceleration. When the current pressure value is greater than the preset pressure threshold, the current vehicle slope is within the preset slope range, and the current acceleration is the preset acceleration value, it is determined that the target vehicle has fallen into the water; if the three conditions are not in parallel, it is determined that the target vehicle has not fallen into the water.

[0099] In this embodiment, when the current pressure value is greater than the preset pressure threshold, the slope detection is performed according to the current vehicle slope and the preset slope range; when the current vehicle slope is within the preset slope range, the acceleration detection is performed according to the current acceleration and the preset acceleration value; when the current acceleration is the preset acceleration value, the state duration is determined; and the current state of the target vehicle is determined according to the state duration. In the above manner, the current state of the target vehicle can be accurately judged by combining the current pressure value, the current vehicle slope and the current acceleration, avoiding the occurrence of misjudgment.

[0100] In a feasible implementation manner, step D14 may further include steps E11 to E12:

[0101] Step E11, when the state duration exceeds a preset time threshold, determining that the current state of the target vehicle is a target water-falling state;

[0102] Step E12, when the state duration does not exceed the preset time threshold, determining that the current state of the target vehicle is not the target water-falling state.

[0103] It should be noted that when the duration of the target vehicle's state exceeds the preset time threshold, it means that there is no sensor missensing at this time, and it is determined that the current state of the target vehicle is the target falling into the water state; when the duration of the target vehicle's state does not exceed the preset time threshold, it means that there is a sensor missensing at this time, and it is determined that the current state of the target vehicle is not the target falling into the water state.

[0104] In this embodiment, when the duration of the state exceeds the preset time threshold, the current state of the target vehicle is determined to be the target water-falling state; when the duration of the state does not exceed the preset time threshold, the current state of the target vehicle is determined not to be the target water-falling state. In this way, the occurrence of the water-falling event can be accurately determined.

[0105] This embodiment provides a door unlocking method, which determines the current pressure value according to the water pressure data collected by the water pressure sensor; determines the current vehicle slope according to the slope data collected by the slope sensor; determines the current acceleration according to the acceleration data collected by the collision acceleration sensor; and determines the current state of the target vehicle by performing state judgment according to the current pressure value, the current vehicle slope and the current acceleration. In the above manner, the current state of the target vehicle can be accurately judged by combining the current pressure value, the current vehicle slope and the current acceleration, thereby avoiding the occurrence of misjudgment.

[0106] For example, in order to help understand the implementation process of the door unlocking method obtained by combining this embodiment with the above embodiments, specifically:

[0107] The door unlocking method of this embodiment judges the falling into water in the following way: when an emergency falling into water or emergency flooding occurs, the water pressure sensor collects the water pressure value. Under normal circumstances, the front of the vehicle will tilt due to overweight. The slope sensor of the whole vehicle will collect the state of the vehicle, and the acceleration sensor will collect the acceleration of the whole vehicle. After the falling into water event occurs: the water pressure sensor designed on the plastic part of the door (design height h1, recommended value less than 800-1000mm from the ground) detects a pressure value greater than ρgh1; the slope sensor of the whole vehicle will collect the state of the vehicle and send the slope information to the electric door controller POD to detect whether the slope of the front vehicle is within the predetermined range; 3 The collision acceleration sensor sensing value will reach 0m / s 2, BCM receives these 3 values ​​in parallel and lasts for 2 seconds, then determines that a water fall event has occurred. After the water fall event occurs: BCM sends the water fall event information to the electric door controller POD, and POD sends a signal to the electric door opening and closing function through software. The electric door controller unlocks the door lock and drives the electric door mechanism to open the door to a predetermined angle. Under normal working conditions, the electric door drive mechanism is designed to open the door with an opening force of 30N. Usually, the opening force duty cycle is about 1 / 15, and the door unlocking time under normal working conditions is about 500ms to 800ms; the vehicle is set to be in water. When the electric door controller POD determines that the vehicle has fallen into water, the opening force duty cycle of the electric door drive mechanism is adjusted to 0%, and the opening force increases to the extreme value of 500N. At the same time, the electric limiter provides an opening force of 150N, and the door is opened electrically through this force. In this state, the door unlocking time window is increased at the same time, and the electric drive mechanism and the limiter continue to provide opening force to cope with the internal and external pressure difference.

[0108] Through the above method, the following effects can be achieved: 1. When falling into water, the electric door will open automatically, avoiding the risk that the door may not be opened due to water pressure, etc.; 2. With the frequent bad weather in cities, the software can be extended to the bad working conditions to automatically open the electric door to reduce casualties; 3. The vehicle status information is sensed by the vehicle slope sensor to avoid the risk of the vehicle door opening on an abnormal slope and the risk of passengers falling out of the cabin.

[0109] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the vehicle door unlocking method of the present application. More simple transformations based on this technical concept are all within the protection scope of the present application.

[0110] This application also provides a door unlocking device, please refer to Figure 3 , the door unlocking device comprises:

[0111] The acquisition module 10 is used to acquire the door lock operation state when the current state of the target vehicle is the target water-falling state;

[0112] A generating module 20, configured to generate a door unlocking signal when the door lock is in a locked state;

[0113] The unlocking module 30 is used to control the door lock of the target vehicle to unlock according to the door unlocking signal, and to control the door of the target vehicle to open according to the target opening force duty cycle of the driving mechanism.

[0114] Optionally, the acquisition module 10 is further used to:

[0115] The current pressure value is determined according to the water pressure data collected by the water pressure sensor; the current vehicle slope is determined according to the slope data collected by the slope sensor; the current acceleration is determined according to the acceleration data collected by the collision acceleration sensor; and the state is judged according to the current pressure value, the current vehicle slope and the current acceleration to determine the current state of the target vehicle.

[0116] Optionally, the acquisition module 10 is further used to:

[0117] When the current pressure value is greater than a preset pressure threshold, slope detection is performed based on the current vehicle slope and a preset slope range; when the current vehicle slope is within the preset slope range, acceleration detection is performed based on the current acceleration and a preset acceleration value; when the current acceleration is a preset acceleration value, a state duration is determined; and the current state of the target vehicle is determined based on the state duration.

[0118] Optionally, the acquisition module 10 is further used to:

[0119] When the state duration exceeds a preset time threshold, it is determined that the current state of the target vehicle is a target water-falling state; when the state duration does not exceed the preset time threshold, it is determined that the current state of the target vehicle is not a target water-falling state.

[0120] Optionally, the unlocking module 30 is further used for:

[0121] The target opening force duty cycle, the limiter opening force and the unlocking time window of the driving mechanism are determined according to the door unlocking strategy; and the door opening of the target vehicle is controlled according to the target opening force duty cycle, the limiter opening force and the unlocking time window.

[0122] Optionally, the unlocking module 30 is further used for:

[0123] Detecting the current state of the seat belt of the target vehicle; generating a seat belt unlocking signal when the current state of the seat belt is a locked state; and controlling the seat belt of the target vehicle to spring open according to the seat belt unlocking signal.

[0124] Optionally, the unlocking module 30 is further used for:

[0125] A headlight control signal and a water-falling alarm message are generated according to the target water-falling state; the headlights of the target vehicle are controlled to turn on according to the headlight control signal, and the water-falling alarm message is sent to the terminal where the rescue personnel are located.

[0126] The vehicle door unlocking device provided by the present application adopts the vehicle door unlocking method in the above embodiment, which can solve the technical problem of how to efficiently open the vehicle door so as to quickly evacuate the vehicle when the vehicle falls into water. Compared with the prior art, the beneficial effects of the vehicle door unlocking device provided by the present application are the same as the beneficial effects of the vehicle door unlocking method provided by the above embodiment, and the other technical features of the vehicle door unlocking device are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0127] The present application provides a vehicle door unlocking device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the vehicle door unlocking method in the above-mentioned embodiment one.

[0128] Reference below Figure 4 , which shows a schematic diagram of the structure of a vehicle door unlocking device suitable for implementing the embodiment of the present application. The vehicle door unlocking device in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 4 The door unlocking device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0129] like Figure 4As shown, the door unlocking device may include a processing device 1001 (e.g., a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the door unlocking device are also stored. The processing device 1001, ROM1002, and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the door unlocking device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows a door unlocking device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or have alternatively.

[0130] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0131] The vehicle door unlocking device provided by the present application adopts the vehicle door unlocking method in the above embodiment, which can solve the technical problem of how to efficiently open the vehicle door so as to quickly evacuate the vehicle when the vehicle falls into water. Compared with the prior art, the beneficial effects of the vehicle door unlocking device provided by the present application are the same as the beneficial effects of the vehicle door unlocking method provided by the above embodiment, and the other technical features of the vehicle door unlocking device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0132] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0133] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0134] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the vehicle door unlocking method in the above-mentioned embodiment.

[0135] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination of the above.

[0136] The computer-readable storage medium may be included in the vehicle door unlocking device; or may exist independently without being assembled into the vehicle door unlocking device.

[0137] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the door unlocking device, the door unlocking device: unlocks the door.

[0138] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0139] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0140] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0141] The readable storage medium provided by the present application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned door unlocking method, and can solve the technical problem of how to efficiently open the door and quickly evacuate the vehicle when the vehicle falls into water. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by the present application are the same as the beneficial effects of the door unlocking method provided by the above-mentioned embodiment, and will not be repeated here.

[0142] The present application also provides a computer program product, including a computer program, which implements the steps of the vehicle door unlocking method as described above when executed by a processor.

[0143] The computer program product provided by the present application can solve the technical problem of unlocking a vehicle door. Compared with the prior art, the beneficial effects of the computer program product provided by the present application are the same as the beneficial effects of the vehicle door unlocking method provided by the above embodiment, which will not be described in detail here.

[0144] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for unlocking a vehicle door, It is characterized in that The vehicle door unlocking method comprises: When the current state of the target vehicle is the target water-falling state, obtaining the door lock operation state; When the door lock is in a locked state, generating a door unlocking signal; The door lock of the target vehicle is controlled to be unlocked according to the door unlocking signal, and the door of the target vehicle is controlled to be opened according to the target opening force duty ratio of the driving mechanism.

2. The method according to claim 1, It is characterized in that When the current state of the target vehicle is the target water-falling state, before obtaining the door lock operation state, the method further includes: Determine the current pressure value according to the water pressure data collected by the water pressure sensor; Determine the current vehicle slope based on the slope data collected by the slope sensor; Determine the current acceleration according to the acceleration data collected by the collision acceleration sensor; A state judgment is performed based on the current pressure value, the current vehicle slope and the current acceleration to determine the current state of the target vehicle.

3. The method according to claim 2, It is characterized in that The performing state judgment according to the current pressure value, the current vehicle slope and the current acceleration to determine the current state of the target vehicle includes: When the current pressure value is greater than a preset pressure threshold, performing slope detection according to the current vehicle slope and a preset slope range; When the current vehicle slope is within the preset slope range, performing acceleration detection according to the current acceleration and the preset acceleration value; When the current acceleration is a preset acceleration value, determining a state duration; The current state of the target vehicle is determined according to the state duration.

4. The method according to claim 3, It is characterized in that Determining the current state of the target vehicle according to the state duration includes: When the duration of the state exceeds a preset time threshold, determining that the current state of the target vehicle is a target falling-into-water state; When the state duration does not exceed the preset time threshold, it is determined that the current state of the target vehicle is not the target water-falling state.

5. The method according to claim 1, It is characterized in that The method of controlling the door opening of the target vehicle according to the target opening force duty ratio of the driving mechanism comprises: Determine the target opening force duty cycle of the drive mechanism, the limiter opening force and the unlocking time window according to the door unlocking strategy; The door opening of the target vehicle is controlled according to the target opening force duty cycle, the limiter opening force and the unlocking time window.

6. The method according to any one of claims 1 to 5, It is characterized in that After controlling the door lock of the target vehicle to unlock according to the door unlocking signal and controlling the door of the target vehicle to open according to the target opening force duty ratio of the driving mechanism, the method further includes: Detecting the current status of the seat belts of the target vehicle; When the current state of the seat belt is a locked state, generating a seat belt unlocking signal; The seat belt of the target vehicle is controlled to spring open according to the seat belt unlocking signal.

7. The method according to any one of claims 1 to 5, It is characterized in that After controlling the door lock of the target vehicle to unlock according to the door unlocking signal and controlling the door of the target vehicle to open according to the target opening force duty ratio of the driving mechanism, the method further includes: Generate a vehicle light control signal and water-falling alarm information according to the target water-falling state; The headlights of the target vehicle are controlled to turn on according to the headlight control signal, and the water-fall alarm information is sent to the terminal where the rescue personnel are located.

8. A vehicle door unlocking device, It is characterized in that The door unlocking device comprises: An acquisition module, used for acquiring the door lock operation state when the current state of the target vehicle is the target water-falling state; A generating module, used for generating a door unlocking signal when the door lock is in a locked state; The unlocking module is used to control the door lock of the target vehicle to unlock according to the door unlocking signal, and to control the door of the target vehicle to open according to the target opening force duty cycle of the driving mechanism.

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

10. A storage medium, It is characterized in that The storage medium stores a door unlocking program, and when the door unlocking program is executed by the processor, the door unlocking method according to any one of claims 1 to 7 is implemented.

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