Vehicle door emergency control method and system, vehicle and storage medium

Abstract

The invention discloses a vehicle door emergency control method and system, a vehicle and a storage medium. The method comprises the steps that a collision signal of the vehicle and a main power source signal of a vehicle door are obtained; judging whether the vehicle meets an emergency condition based on the collision signal and the main power supply signal, and determining a vehicle door control strategy according to a judgment result; and if the judgment result is that the emergency situation is met, determining that the vehicle door control strategy is to execute an unlocking interaction guide mode so as to guide the user to perform emergency unlocking on the corresponding vehicle door. By applying the technical scheme of the invention, the problem that a user is difficult to quickly determine the mechanical hand clasping of the vehicle door in an emergency can be solved, and the operability in a low-visibility environment is improved through a multi-mode guide mechanism, so that the user safety of the vehicle in the emergency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle safety, in particular to a vehicle door emergency control method and system, a vehicle and a computer readable storage medium. BACKGROUND

[0002] At present, under the background of rapid popularization of new energy vehicles, vehicle safety system design has become the core concern of the industry, and the reliability of the vehicle door unlocking mechanism, as a key link for emergency escape, is directly related to the safety of passengers. In related technologies, the vehicle door unlocking system generally adopts an architecture in which an electronic door opening button and a mechanical emergency handle work together. The electronic door opening button relies on vehicle power supply to realize daily unlocking function; and the mechanical emergency handle, as a mechanical physical device, is usually embedded in the door trim structure, such as the inside of the trunk, the side of the seat, the inside of the door trim handle or the bottom of the door map pocket, and provides an emergency operation mode when the electronic door opening button cannot be normally used. However, the installation positions of the mechanical emergency handles of different vehicle models are different and lack a unified identification system, which makes it difficult for users unfamiliar with the vehicle model to quickly find the position of the mechanical emergency handle in an emergency, thereby delaying the best escape time of the user. SUMMARY

[0003] In view of the above problems, the present application provides a vehicle door emergency control method and system, a vehicle and a computer readable storage medium, which can solve the problem that users cannot quickly determine the mechanical emergency handle of the vehicle door in an emergency, and improve the user safety of the vehicle in an emergency.

[0004] According to an aspect of an embodiment of the present application, a vehicle door emergency control method is provided, which comprises: obtaining a collision signal of the vehicle and a main power signal of the vehicle door; determining whether the vehicle meets an emergency situation based on the collision signal and the main power signal, and determining a vehicle door control strategy according to the determination result; if the determination result is that the vehicle meets the emergency situation, determining that the vehicle door control strategy is an unlocking interaction guidance mode to guide the user to perform emergency unlocking on the corresponding vehicle door.

[0005] In an optional example embodiment, the determination whether the vehicle meets an emergency situation based on the collision signal and the main power signal, and the determination of the vehicle door control strategy according to the determination result, comprises: if the collision signal of the vehicle is invalid and the main power signal is valid, it is determined that the vehicle is in a normal state; if the collision signal of the vehicle is invalid and the main power signal is invalid, it is determined that the vehicle door control strategy is to control the backup power supply to start; If the collision signal of the vehicle is valid and the main power signal represents invalid, it is determined that the vehicle meets an emergency situation, the vehicle door control strategy is to control the starting of the backup power supply, and an unlocking interaction guide mode is executed.

[0006] In an optional example embodiment, in the state where the vehicle meets an emergency situation, the method further comprises: Obtaining the cabin light intensity of the vehicle; Determining an emergency level of the unlocking interaction guide mode based on the cabin light intensity.

[0007] In an optional example embodiment, the unlocking interaction guide mode comprises outputting a vibration interaction signal and a projection interaction signal. The method further comprises: If the cabin light intensity is greater than a preset light intensity threshold, it is determined that the emergency level of the unlocking interaction guide mode is a first level, and the unlocking interaction guide mode is to output a vibration interaction signal to guide a user to determine the position of the vehicle door emergency unlocking handle. If the cabin light intensity is less than or equal to the preset light intensity threshold, it is determined that the emergency level of the unlocking interaction guide mode is a second level, and the unlocking interaction guide mode is to output a vibration interaction signal and a projection interaction signal to guide a user to determine the position of the vehicle door emergency unlocking handle.

[0008] In an optional example embodiment, the method further comprises: After obtaining that the vehicle door is unlocked in an emergency, the unlocking interaction guide mode is exited.

[0009] According to another aspect of the embodiments of the present application, a vehicle door emergency control system of a vehicle is provided, the system comprising a main power supply; the system further comprises: An emergency unlocking handle, a backup power supply, a projection module and a vibration module arranged at each vehicle door of the vehicle; The backup power supply is configured to supply power to the projection module and the vibration module in the case of abnormality of the main power supply; The projection module is configured to output a projection interaction signal to guide the position of the emergency unlocking handle under the control of a vehicle door controller; The vibration module is configured to output a vibration interaction signal to guide the position of the emergency unlocking handle under the control of a vehicle door controller.

[0010] In an optional example embodiment, the projection position of the projection interaction signal is correspondingly provided with a fluorescent coating, and the shape, area of the fluorescent coating and the projection pattern of the projection interaction signal are consistent.

[0011] In one optional exemplary embodiment, the surface of the emergency unlocking handle has Braille raised dots at a preset height.

[0012] According to another aspect of the embodiments of this application, a vehicle is provided, comprising: Controller; The memory is used to store one or more programs, which, when executed by the controller, enable the controller to implement the vehicle door emergency control method described above.

[0013] According to another aspect of the embodiments of this application, a computer-readable storage medium is provided, wherein a computer program is stored in the computer program, the computer program including at least one executable instruction, which, when executed on a vehicle door emergency control system / vehicle, causes the vehicle door emergency control system / vehicle to perform the operation of the vehicle door emergency control method as described above.

[0014] The vehicle door emergency control method of this application embodiment is applied to the vehicle door emergency control system. By acquiring the vehicle's collision signal and the main power signal of the door, it achieves accurate monitoring of the vehicle's safety status. Based on the collision signal and the main power signal, it determines whether the vehicle meets the emergency conditions and determines the door control strategy, thereby avoiding the risk of false triggering in real accident scenarios. On this basis, if the judgment result is that the emergency conditions are met, the door control strategy is determined to execute the unlocking interactive guidance mode, thereby directly guiding the user to operate for emergency unlocking. This solves the problem that users have difficulty quickly identifying the mechanical emergency handle of the door in emergency situations, and improves the user safety of the vehicle in emergency situations.

[0015] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0017] Figure 1 A schematic diagram of the structure of a door in an embodiment of the vehicle door emergency control system provided in this application is shown.

[0018] Figure 2A schematic diagram of an embodiment of a projection module installed in the door of a vehicle door emergency control system provided in this application is shown.

[0019] Figure 3 A schematic diagram of a structure of a vibration module installed in the door of a vehicle door emergency control system provided in this application is shown.

[0020] Figure 4 A flowchart illustrating an embodiment of the vehicle door emergency control method provided in this application is shown.

[0021] Figure 5 A schematic diagram of the structure of an embodiment of the vehicle provided in this application is shown.

[0022] Explanation of reference numerals in the attached figures: 10 - Emergency unlocking handle; 20 - Projection module; 30 - Vibration module. Detailed Implementation

[0023] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0024] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0025] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0026] In this application, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0027] At present, in emergency situations where a new energy vehicle is involved in a collision and the main power supply of the door, which serves as an escape route, fails, users often face multiple obstacles in unlocking the door. (1) The mechanical emergency unlocking handle is hidden, has different installation locations, and lacks a unified sign. For example, the common mechanical emergency unlocking handle is located inside the trunk, on the side of the seat, inside the door panel armrest, or at the bottom of the door map pocket. This makes it difficult for users unfamiliar with the vehicle model (such as passengers or elderly passengers) to quickly find the mechanical emergency unlocking handle in an emergency. (2) When the lighting in the vehicle cabin is interrupted or there is no external light source at night, the traditional mechanical emergency unlocking handle cannot be located. As a result, in an emergency situation, the emergency unlocking time is directly delayed, significantly compressing the escape time and delaying the user's best escape time, thus posing a substantial safety risk.

[0028] In view of this, to solve the above problems, this application proposes a vehicle door emergency control method to address the issue in related technologies where users find it difficult to quickly locate the mechanical emergency latch of the door in emergency situations, thereby improving user safety in emergency situations. The core of the vehicle door emergency control system proposed in this application lies in constructing a system with electrical redundancy and multimodal human-machine interaction capabilities. This system does not absolutely rely on the continuous operation of the vehicle's high-voltage or low-voltage constant power network, but can be activated immediately after the main power supply to the door is cut off through an independent backup power supply; simultaneously, it coordinates the visual guidance of projection and the tactile guidance of vibration to form an emergency unlocking control system with clear spatial orientation and a clear perception dimension. Specifically, the vehicle door emergency control system includes a main power supply, which is generally located in the vehicle's front engine compartment, under the seats, trunk, etc., to provide a driving source for the vehicle's electronic door unlocking control, etc.; please refer to... Figure 1 As for Figure 3 As shown, the system also includes: an emergency unlocking handle 10, a backup power supply, a projection module 20, and a vibration module 30; The emergency unlock handle 10 is located in each door of the vehicle. Specifically, it can be embedded in the door trim panel of each door, presenting a hidden layout. This structure ensures that the emergency unlock handle 10 is not obtrusive or exposed in normal use, reducing the risk of accidental activation. It should be understood that the emergency unlock handle 10 can also be located below the inner door handle, on the inner side of the lower B-pillar trim panel, etc., depending on the actual application scenario. This is only an example for illustration purposes.

[0029] A backup power supply is provided for each emergency unlock handle 10. This backup power supply can be located on each door of the vehicle or centrally located in the center of the vehicle body. It is used to power the electronic unlock control of the doors, as well as the projection module 20 and vibration module 30, in the event of a failure of the main power supply to the doors. It should be understood that the backup power supply can be a supercapacitor, typically with a nominal capacity of 10 F and a rated voltage of 16 V, possessing millisecond-level response speed. It can automatically switch to backup power supply when the main power supply voltage to the door drops to a threshold (e.g., below 9V) or when the main power supply fails.

[0030] The projection module 20 is installed in each door of the vehicle and is used to output projection interaction signals to guide the position of the emergency unlock handle 10 under the control of the door controller. The target area of ​​the projection spot of the projection module 20 is located at the bottom of the door map pocket, which is an area that is easy for passengers to observe. Its specific position can be the relative position of the emergency unlock handle 10, so as to achieve direct visual guidance on the position of the emergency unlock handle 10. The projection module 20 includes an LED array for emitting point light sources, a convex lens for focusing light, a Fresnel lens for magnifying imaging, and a perforated symbol plate for forming specific patterns. Its working principle is as follows: the LED array projects an array of light spots; the convex lens converges the light spots into a parallel beam; after the parallel beam penetrates the perforated symbol plate, the light with a specific indicator pattern is projected onto the Fresnel lens for magnification and imaging, ultimately projecting onto the vehicle door map pocket. It should be noted that the LED array can consist of 24 green LEDs with a wavelength of 573 nm arranged in a ring; the convex lens can have a focal length of 50 mm and a diameter of 30 mm; and the Fresnel lens can have a focal length of 100 mm and a size of 40×40 mm. This, combined with the perforated symbol plate, enables the projection of light onto a plate with a specific pattern, thus projecting symbolic light spots with directional indication. The specific pattern can be a "←" or "→" shaped guide symbol to indicate the position of the emergency unlock handle 10.

[0031] It should be understood that the projection module 20 may also adopt a micro laser diode + MEMS (Micro-Electro-Mechanical Systems) micro-scanning mirror solution, or a DLP (Digital Light Processing) chip solution, etc. This is only for illustrative purposes and is not specifically limited.

[0032] Vibration modules 30 are installed in each door of the vehicle to output vibration interaction signals under the control of the door controller, guiding the position of the emergency unlocking handle 10. The specific position of the vibration module 30 can be the relative position of the emergency unlocking handle 10, achieving tactile guidance of the position of the emergency unlocking handle 10. The vibration module 30 may include a linear vibration motor and a ring capacitor electrode. The ring capacitor electrode detects the distance of the user's hand by the change in capacitance between the electrodes. The signal processing circuit converts the detected capacitance change value into a distance value and finally feeds it back to the controller. The controller outputs a control signal to the linear vibration motor, causing the linear vibration motor to emit a vibration interaction signal. In this embodiment, the ring capacitor electrode can also be replaced by an ultrasonic ranging module or an infrared TOF sensor. The hand distance detected by the ring capacitor electrode can be 5cm to 20cm, and the vibration intensity value of the vibration interaction signal can be 0.3G to 0.33G (1G equals 9.8m / s²). 2 (The vibration intensity value of 1G means that the vibration acceleration is equivalent to 1 time the gravitational acceleration.) The distance detection range of the ring capacitor electrode and the vibration intensity of the vibration interaction signal are set according to the actual application scenario, and are not specifically limited here.

[0033] For example, after the annular capacitor electrode in the vibration module 30 detects the distance to the user's hand by the change in capacitance between the electrodes, the capacitance change value can be converted by the signal processing circuit using the following formula (1), as follows: Formula (1): △C = k / (d^2); In the formula, △C is the capacitance change value, K is the preset fixed calibration coefficient, and d is the distance value after conversion.

[0034] After calculating the distance to the user's hand, the vibration intensity value is further calculated using the following formula (2), as follows: Formula (2): G = G b + K × (1 / d); In the formula, G is the vibration intensity value of the linear vibration motor, G b This represents the basic vibration intensity of the linear vibration motor.

[0035] The above describes how to calculate the vibration intensity of the linear vibration motor and drive it when the user's hand is within the effective detection range of the linear vibration motor. The code involved in the controller can be exemplified as follows: void updateVibration() float d = readCapacitiveDistance(); / / Get the distance to the user's hand if (d<20&&d>5) { / / Effective detection range float intensity = 0.3 + 0.15 * (1 / d); / / Calculate the vibration intensity value setMotor(intensity); / / Drive a linear vibration motor } Furthermore, the vibration interaction signal of the vibration module 30 can gradually increase in intensity as the user approaches the emergency unlocking handle 10, providing the user with proximity feedback on vibration intensity. This allows the user to more directly perceive the tactile feedback and quickly locate the position of the emergency unlocking handle 10. It should be understood that the vibration module 30 can also employ an eccentric rotor motor, a multi-point distributed piezoelectric ceramic plate array, etc., depending on the actual application scenario. This is only an illustrative example and is not a specific limitation.

[0036] Through the above technical solution, the door controller receives input signals from the vehicle collision signal receiver and the door main power status monitoring circuit in real time. In an emergency situation where the vehicle is involved in a collision and the door main power is abnormal, the door controller determines the backup power supply to take over based on the judgment result. Then, it drives the projection module 20 to project a directional pattern onto the door map pocket area to guide the position of the emergency unlocking handle 10. At the same time, it drives the vibration module 30 to generate gradient-enhanced tactile feedback near the handle base to guide the position of the emergency unlocking handle 10. In dark or smoky environments, the user first quickly determines the approximate location of the emergency unlocking handle 10 through the directional pattern projected by the projection module 20, and then guides the position of the emergency unlocking handle 10 by combining the vibration intensity change of the vibration module 30, and finally completes the mechanical unlocking action.

[0037] Because a backup power source independent of the main power supply of the car door is set up, the problem of the guidance function being unavailable after a power outage is solved. The combination of projection and vibration modes in terms of vision and touch significantly reduces the trial and error cost for users in emergency situations, thereby improving the reliability and timeliness of emergency unlocking.

[0038] In an optional embodiment, a fluorescent coating is provided corresponding to the projection position of the projection interaction signal, and the shape and area of ​​the fluorescent coating are consistent with the projection pattern of the projection interaction signal.

[0039] The fluorescent coating is a functional luminescent material layer coated on the surface of the substrate at the projection location. The core component of the fluorescent coating can be europium strontium aluminate (SrAl2O4:Eu), which belongs to the long-afterglow phosphorescent material. The shape and area of ​​the fluorescent coating are consistent with the projection pattern of the projection interaction signal, meaning that the boundary of the fluorescent coating completely coincides with the geometric shape (such as "←" or "→" shaped guide symbols) presented on the decorative panel plane inside the map pocket. When the main power supply of the vehicle door fails and the backup power supply is activated, the fluorescent coating can absorb the light spot projected by the projection module 20. Even if the backup power supply or the projection module 20 is subsequently de-energized, the fluorescent coating can continue to provide guidance for a certain period of time.

[0040] It should be noted that the duration of fluorescence retention after the fluorescent coating absorbs light depends on the fluorescent coating material used in the actual application scenario. The retention time can be 8 minutes, 10 minutes, 12 minutes, etc. This is only an example.

[0041] In an optional embodiment, the surface of the emergency unlocking handle 10 has Braille raised dots at a preset height.

[0042] In this embodiment, Braille raised dots are provided on the emergency unlocking handle 10. The aim is to enable visually impaired users (such as visually impaired passengers, visually impaired people in smoke / dark environments, etc.) to accurately identify the emergency unlocking handle 10 without relying on vision through a tactile feedback mechanism, thereby improving the reliability of barrier-free operation of the emergency unlocking device in various usage scenarios.

[0043] It should be understood that the preset height of the Braille dots is set according to the actual application. For example, the preset height can be 0.45mm, 0.5mm, 0.6mm, etc. This is only an example.

[0044] The following describes the vehicle door emergency control method provided by the exemplary embodiments of this application in conjunction with the aforementioned vehicle door emergency control system and with reference to the accompanying drawings. It should be noted that the aforementioned vehicle door emergency control system is only shown for the purpose of understanding the concept and principle of this application, and the embodiments of this application are not limited in this respect.

[0045] The vehicle door emergency control method can be implemented by a terminal device, server, vehicle controller, power domain controller, body domain controller, cockpit domain controller, or other processing device. The terminal device can be user equipment (UE), computer, mobile device, user terminal, terminal, cellular phone, personal digital assistant (PDA), handheld device, computing device, in-vehicle device, wearable device, etc. In some possible implementations, the vehicle door emergency control method can be implemented by a processor calling computer-readable instructions stored in memory.

[0046] Specifically, please refer to, for example Figure 4 As shown, the vehicle door emergency control method of this embodiment is applied to the vehicle door emergency control system described above. The method includes the following steps: Step S100: Obtain the collision signal of the vehicle and the main power signal of the door; The vehicle's collision signal can be detected in real time by a three-axis acceleration sensor located at the B-pillar of the vehicle body, the inner side of the front longitudinal beam, or by millimeter-wave radar. The main power signal of the door can be detected by detecting the voltage drop across the main relay contacts to determine whether the main power supply is working properly.

[0047] The collision signal has two states: valid and invalid. A valid collision signal indicates that a collision has occurred, while an invalid collision signal indicates that no collision has occurred. Similarly, the main power signal has two states: valid and invalid. A valid main power signal indicates that the main power supply is functioning normally, while an invalid main power signal indicates that the main power supply is malfunctioning. In this embodiment, the states of the collision signal and the main power signal are acquired to provide a basis for subsequent judgment on whether the vehicle meets emergency response requirements.

[0048] Step S200: Based on the collision signal and the main power signal, determine whether the vehicle meets the emergency conditions, and determine the door control strategy according to the determination result; In this embodiment, combining the aforementioned judgments on the collision signal status and the main power signal status, an emergency situation is determined only when the vehicle's collision signal is valid and the main power signal is invalid—that is, when a collision has occurred and the main power supply of the door is malfunctioning. Based on this judgment result, the corresponding door control strategy is determined. This multi-condition coupling mechanism avoids erroneous actions caused by single-point failures. For example, if only the collision signal is valid but the main power supply is functioning normally, the door can still be unlocked using a conventional electronic button.

[0049] Step S300: If the judgment result is that the emergency situation is met, then the door control strategy is determined to be the unlocking interaction guidance mode, so as to guide the user to unlock the corresponding door in an emergency.

[0050] In this embodiment, in conjunction with the aforementioned situation where a vehicle collision occurs and the main power supply of the door malfunctions, at which point the vehicle's collision signal is valid but the main power supply signal is invalid, the door control strategy determined based on this is to execute the unlocking interactive guidance mode, thereby directly guiding the user to perform emergency unlocking. This solves the problem that users have difficulty quickly identifying the mechanical emergency handle of the door in emergency situations, and improves user safety in emergency situations.

[0051] In an optional embodiment, in order to determine whether the vehicle is in an emergency situation based on a collision signal and a main power signal, and thereby determine the vehicle door control strategy based on the determination result, the method of this application includes: If the collision signal of the vehicle is invalid and the main power signal is valid, then the vehicle is determined to be in a normal state. Here, "invalid collision signal" means that the collision signal receiver does not detect a signal that meets the preset acceleration threshold. The preset acceleration threshold is set according to the actual application scenario. For example, the preset acceleration threshold can be 3g, 4g, etc. This is only an example and is not specifically limited.

[0052] The main power supply signal is considered valid if the analog voltage signal output by the main power supply voltage monitoring circuit is stable within the range of 12.0 V ± 0.5 V and lasts for more than 500 ms. This signal comes from the vehicle's low-voltage power supply system and is sent to the ADC of the door controller after voltage division sampling and filtering. The door controller determines the main power supply status based on the preset voltage and duration to avoid misjudgment caused by transient drops.

[0053] In this embodiment, if the vehicle's collision signal is invalid and the main power signal is valid, it indicates that the vehicle has not been involved in a collision and the main power supply is working normally. At this point, the vehicle is considered to be in a normal state, and this state can be maintained.

[0054] If the vehicle's collision signal is invalid and the main power signal is invalid, then the door control strategy is determined to start the backup power supply. Among them, invalid main power signal means that the analog voltage signal output by the main power voltage monitoring circuit is lower than 10.5 V and lasts for more than 200ms, or the main power signal is interrupted. The reasons for invalid main power signal may be battery aging, fuse blowing, or poor wiring harness contact.

[0055] In this embodiment, if the vehicle's collision signal is invalid and the main power signal is invalid, it indicates that the vehicle has not been involved in a collision but the main power supply is malfunctioning. In this case, the door control strategy needs to activate the backup power supply. That is, the door controller sends a pre-charge enable signal to the supercapacitor in the redundant circuit, drives the MOS switch to turn on, and connects the supercapacitor to the emergency load power supply bus to supply power to the electronic unlock button of the door or other loads of the door.

[0056] If the vehicle's collision signal is valid and the main power signal is invalid, then the vehicle is determined to meet the emergency conditions, and the door control strategy is to control the backup power supply to start and execute the unlocking interactive guidance mode.

[0057] Among them, a valid collision signal can mean that the collision signal receiver collects a signal from the accelerometer that meets the preset acceleration threshold within 100 ms; an invalid main power signal means that the analog voltage signal output by the main power voltage monitoring circuit is lower than 10.5 V and lasts for more than 200 ms, or the main power signal is interrupted. The reason for the invalid main power signal may also be that the main power is disconnected due to the collision of the vehicle.

[0058] In this embodiment, the vehicle is determined to meet the emergency situation only when the collision signal is valid and the main power signal is invalid. That is, the vehicle has experienced a substantial structural collision and the main power system of the door is damaged (such as a cut wiring harness or a burnt-out fuse relay). At this time, the vehicle's electronic system cannot be used and an independent emergency system needs to be activated. The door control strategy at this time is to control the backup power supply to start and execute the unlocking interactive guidance mode to ensure that the door unlocking guidance is provided in an instant, reliable and multimodal manner in critical moments.

[0059] Through the above embodiments, the mechanical response characteristics of the collision sensor are combined with the electrical stability of the power supply voltage for analysis, thereby improving the reliability, safety and environmental adaptability of the door emergency control system under complex failure scenarios.

[0060] In an optional embodiment, the emergency situation where the collision signal is valid and the main power signal is invalid, as determined above, forms the pre-condition logic for initiating the unlocking interactive guidance mode. Simultaneously, it is necessary to further determine the emergency level of the unlocking interactive guidance mode. When the vehicle meets the emergency condition, the method of this application further includes: Obtain the cabin illumination intensity of the vehicle; The emergency level of the unlocking and interactive guidance mode is determined based on the cabin lighting intensity.

[0061] The cabin illumination intensity refers to the ambient light brightness of the vehicle's passenger compartment area, measured in lux. The range of light intensity measurement can be 0–100 lux. This is achieved by an ambient light sensor installed in the vehicle's passenger compartment. After acquiring the cabin illumination intensity, the emergency level of the unlocking and interactive guidance mode is determined based on the cabin illumination intensity, thus providing a basis for subsequent output of vibration and projection interactive signals based on the emergency level.

[0062] Furthermore, the unlocking interaction guidance mode includes outputting vibration interaction signals and projection interaction signals. This mode refers to a multimodal human-machine interaction response mechanism formed by the door controller's unified scheduling and coordinated driving of the vibration and projection modules, provided the vehicle meets emergency conditions. This mechanism can operate independently from the vehicle's constant power network, powered by a backup power source, dynamically adapting to cabin lighting conditions to guide users to quickly identify and operate the emergency unlocking handle in a more identifiable manner. In this mechanism, the vibration interaction signal transmits spatial orientation information through tactile feedback, while the projection interaction signal transmits visual positioning information through optical imaging. Both are uniformly and hierarchically invoked by the same control logic at the system level, rather than being activated in parallel or out of order.

[0063] In conjunction with the above embodiments, based on the cabin illumination intensity to determine the emergency level, and then to determine the output vibration interaction signal and projection interaction signal, the method of this application further includes: If the cabin light intensity is greater than the preset light intensity threshold, the emergency level of the unlocking interaction guidance mode is determined to be the first level. The unlocking interaction guidance mode outputs a vibration interaction signal to guide the user to determine the position of the emergency unlocking handle of the car door. If the cabin light intensity is less than or equal to a preset light intensity threshold, the emergency level of the unlocking interaction guidance mode is determined to be Level 2. The unlocking interaction guidance mode outputs vibration interaction signals and projection interaction signals to guide the user to determine the position of the emergency unlocking handle of the car door.

[0064] The preset light intensity threshold is a system preset value, set according to the actual application scenario. For example, the preset light intensity threshold can be 8 lux, 10 lux, etc., which is only an example here. For example, if the preset light intensity threshold is set to 10 lux, then when the cabin light intensity is greater than 10 lux, the user can complete the contour recognition of the map pocket area of ​​the door trim panel within 3 seconds without additional optical guidance.

[0065] The first emergency level for unlocking the interactive guidance mode refers to the guidance level determined when the cabin lighting intensity is greater than a preset lighting intensity threshold, provided the vehicle meets the emergency conditions (i.e., a valid collision signal and a disabled main power signal). At this level, the system only uses the tactile perception of the vibration module for single-modal guidance and does not activate the projection module. The second emergency level for unlocking the interactive guidance mode refers to the guidance level determined when the cabin lighting intensity is less than or equal to a preset lighting intensity threshold, provided the vehicle meets the emergency conditions (i.e., a valid collision signal and a disabled main power signal). At this level, the system simultaneously activates the tactile perception of the vibration module and the visual perception of the projection module, forming multi-modal collaborative guidance.

[0066] In conjunction with the above embodiments, the vibration interaction signal output in the unlocking interaction guidance mode guides the user to determine the position of the emergency unlock handle on the car door. Specifically, it is implemented by using a linear vibration motor located at the bottom of the map pocket on the door trim panel to output mechanical vibration with gradient characteristics. The vibration intensity value is dynamically adjusted as the user's hand approaches the emergency unlock handle. As the user's hand moves from far to near, the vibration intensity value of the linear vibration motor gradually increases, thereby naturally guiding the user's hand to move towards the position of the emergency unlock handle.

[0067] In the unlocking interactive guidance mode, a projected interactive signal is output to guide the user to determine the location of the emergency unlock handle on the door. Specifically, when the emergency level of the unlocking interactive guidance mode is the second level, the projection module projects a specific guiding pattern onto a designated area in the map pocket of the door interior panel. The shape and area of ​​the projected pattern completely overlap with the fluorescent coating applied to that area. Thus, when the main power supply to the door fails and the backup power is activated, the fluorescent coating can absorb the light spot projected by the projection module. Even if the backup power supply or the projection module is subsequently de-energized, the fluorescent coating can continue to provide guidance for a certain period of time.

[0068] Through the above embodiments, in the dual emergency situation of vehicle collision and main power failure, vibration and projection guidance are activated in stages based on the cabin ambient lighting conditions. In the first level of bright environment, the tactile vibration gradient feedback of the vibration module is relied upon; in the second level of dark or low visibility environment, the vibration interaction signal of the vibration module provides continuous distance perception, and the projection interaction signal of the projection module provides visual spatial positioning, thereby significantly improving the reliability of emergency unlocking.

[0069] In an optional embodiment, the method of this application further includes: after obtaining that the car door is in an open state, exiting the unlocking interaction guidance mode.

[0070] In this embodiment, the door is in the open state. This can be achieved after the user opens the door using the emergency unlock handle. Since the vehicle has an escape route, there is no need to execute the unlocking interaction guidance mode to guide the emergency unlock handle. The vehicle's door emergency control system can then exit the unlocking interaction guidance mode, thereby controlling the backup power consumption while enabling the door to be opened quickly.

[0071] Figure 5 The diagram illustrates the structure of an embodiment of the vehicle described in this application, and also shows the structure of a computer system suitable for implementing the vehicle in this application. The specific embodiments of this application do not limit the specific implementation of the vehicle.

[0072] Please see Figure 5 As shown, the vehicle includes: a controller; and a memory for storing one or more programs, which, when executed by the controller, perform the aforementioned vehicle door emergency control method.

[0073] Please continue reading. Figure 5 As shown, the vehicle's computer system 400 includes a Central Processing Unit (CPU) 401, which can perform various appropriate actions and processes, such as executing the methods described in the above embodiments, based on programs stored in Read-Only Memory (ROM) 402 or programs loaded from storage section 408 into Random Access Memory (RAM) 403. The RAM 403 also stores various programs and data required for system operation. The CPU 401, ROM 402, and RAM 403 are interconnected via a bus 404. An Input / Output (I / O) interface 405 is also connected to the bus 404.

[0074] The following components are connected to I / O interface 405: an input section 406 including a keyboard, mouse, etc.; an output section 407 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 408 including a hard disk, etc.; and a communication section 409 including a network interface card such as a LAN (Local Area Network) card, modem, etc. The communication section 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to I / O interface 405 as needed. A removable medium 411, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on drive 410 as needed so that computer programs read from it can be installed into storage section 408 as needed.

[0075] Specifically, according to embodiments of this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program including a computer program for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 409, and / or installed from removable medium 411. When the computer program is executed by central processing unit (CPU) 401, it performs various functions defined in the system of this application.

[0076] Another aspect of this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the vehicle door emergency control method described above. This computer-readable storage medium may be included in the vehicle described in the above embodiments, or it may exist independently and not be installed in the vehicle.

[0077] Another aspect of this application provides a computer program product or computer program comprising at least one executable instruction that, when executed on a vehicle door emergency control system / vehicle, causes the vehicle door emergency control system / vehicle to perform the vehicle door emergency control method as described below: Acquire the collision signal and the main power signal of the vehicle door; Based on the collision signal and the main power signal, determine whether the vehicle meets the emergency conditions, and determine the door control strategy based on the determination result; If the judgment result is satisfactory, then the door control strategy is determined to be the unlocking interaction guidance mode, in order to guide the user to unlock the corresponding door in an emergency.

[0078] In an alternative approach, the executable instructions can also be used to cause the vehicle's door emergency control system / vehicle to perform the following operations: If the collision signal of the vehicle is invalid and the main power signal is valid, then the vehicle is determined to be in a normal state. If the vehicle's collision signal is invalid and the main power signal is invalid, then the door control strategy is determined to start the backup power supply. If the vehicle's collision signal is valid and the main power signal is invalid, then the vehicle is determined to meet the emergency conditions, and the door control strategy is to control the backup power supply to start and execute the unlocking interactive guidance mode.

[0079] In an alternative approach, the executable instructions can also be used to cause the vehicle's door emergency control system / vehicle to perform the following operations: Obtain the cabin illumination intensity of the vehicle; The emergency level of the unlocking and interactive guidance mode is determined based on the cabin lighting intensity.

[0080] In one alternative approach, the unlocking interactive guidance mode includes outputting a vibration interactive signal and a projection interactive signal; Specifically, the executable instructions can also be used to cause the vehicle's door emergency control system / vehicle to perform the following operations: If the cabin light intensity is greater than the preset light intensity threshold, the emergency level of the unlocking interaction guidance mode is determined to be the first level. The unlocking interaction guidance mode outputs a vibration interaction signal to guide the user to determine the position of the emergency unlocking handle of the car door. If the cabin light intensity is less than or equal to a preset light intensity threshold, the emergency level of the unlocking interaction guidance mode is determined to be Level 2. The unlocking interaction guidance mode outputs vibration interaction signals and projection interaction signals to guide the user to determine the position of the emergency unlocking handle of the car door.

[0081] In an alternative approach, the executable instructions can also be used to cause the vehicle's door emergency control system / vehicle to perform the following operations: After obtaining the emergency unlocking information for the car door, exit the unlocking interactive guidance mode.

[0082] The vehicle door emergency control method of this application embodiment is applied to the vehicle door emergency control system. By acquiring the vehicle's collision signal and the main power signal of the door, it achieves accurate monitoring of the vehicle's safety status. Based on the collision signal and the main power signal, it determines whether the vehicle meets the emergency conditions and determines the door control strategy, thereby avoiding the risk of false triggering in real accident scenarios. On this basis, if the judgment result is that the emergency conditions are met, the door control strategy is determined to execute the unlocking interactive guidance mode, thereby directly guiding the user to operate for emergency unlocking. This solves the problem that users have difficulty quickly identifying the mechanical emergency handle of the door in emergency situations, and improves the user safety of the vehicle in emergency situations.

[0083] It should be noted that the computer-readable medium shown in the embodiments of this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying a computer-readable computer program. The transmitted data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. The computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, etc., or any suitable combination thereof.

[0084] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. Each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0085] The units described in the embodiments of this application can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself.

[0086] According to one aspect of the embodiments of this application, a computer system is also provided, including a Central Processing Unit (CPU), which can perform various appropriate actions and processes based on a program stored in read-only memory (ROM) or a program loaded from storage into random access memory (RAM), such as performing the methods described above. Various programs and data required for system operation are also stored in the RAM. The CPU, ROM, and RAM are interconnected via a bus. Input / output (I / O) interfaces are also connected to the bus.

[0087] The following components are connected to the I / O interface: input components including keyboards, mice, etc.; output components including cathode ray tubes (CRTs), liquid crystal displays (LCDs), and speakers; storage components including hard drives; and communication components including network interface cards such as LAN (Local Area Network) cards and modems. The communication components perform communication processing via networks such as the Internet. Drives are also connected to the I / O interface as needed. Removable media, such as disks, optical discs, magneto-optical discs, semiconductor memories, etc., are installed on the drive as needed so that computer programs read from them can be installed into the storage components as required.

[0088] The above description is merely a preferred exemplary embodiment of this application and is not intended to limit the implementation of this application. Those skilled in the art can easily make corresponding modifications or alterations based on the main concept and spirit of this application. Therefore, the scope of protection of this application should be determined by the scope of protection claimed in the claims.

[0089] In practice, the collection and processing of data in this application should strictly comply with the requirements of relevant national laws and regulations, obtain the informed consent or separate consent of the data subject, and carry out subsequent data use and processing within the scope of laws and regulations and the authorization of the data subject.

Claims

1. A method of emergency control of a door of a vehicle, characterized by, The method comprises: obtaining a collision signal of the vehicle and a main power supply signal of a vehicle door; determining whether the vehicle meets an emergency situation based on the collision signal and the main power supply signal, and determining a vehicle door control strategy according to a determination result; if the determination result is that the vehicle meets the emergency situation, determining that the vehicle door control strategy is to execute an unlocking interaction guide mode to guide a user to perform emergency unlocking on the corresponding vehicle door.

2. The emergency control method of a door of a vehicle according to claim 1, characterized by, The determination of whether the vehicle meets the emergency situation based on the collision signal and the main power supply signal, and the determination of the vehicle door control strategy according to the determination result, comprise: if the collision signal of the vehicle is invalid and the main power supply signal represents validity, determining that the vehicle is in a normal state; if the collision signal of the vehicle is invalid and the main power supply signal represents invalidity, determining that the vehicle door control strategy is to control a backup power supply to start; if the collision signal of the vehicle is valid and the main power supply signal represents invalidity, determining that the vehicle meets the emergency situation, and the vehicle door control strategy is to control the backup power supply to start and execute the unlocking interaction guide mode.

3. The door emergency control method of a vehicle according to claim 1 or 2, characterized by, In the state in which the vehicle meets the emergency situation, the method further comprises: obtaining a cabin light intensity of the vehicle; determining an emergency level of the unlocking interaction guide mode based on the cabin light intensity.

4. The emergency control method of a door of a vehicle according to claim 3, characterized by, The unlocking interaction guide mode comprises outputting a vibration interaction signal and a projection interaction signal. The method further comprises: if the cabin light intensity is greater than a preset light intensity threshold, determining that the emergency level of the unlocking interaction guide mode is a first level, and the unlocking interaction guide mode is to output the vibration interaction signal to guide the user to determine a position of an emergency unlocking handle of the vehicle door; if the cabin light intensity is less than or equal to the preset light intensity threshold, determining that the emergency level of the unlocking interaction guide mode is a second level, and the unlocking interaction guide mode is to output the vibration interaction signal and the projection interaction signal to guide the user to determine the position of the emergency unlocking handle of the vehicle door.

5. The emergency control method of a door of a vehicle according to claim 1, characterized by, The method further comprises: after obtaining that the vehicle door is in an open state, exiting the unlocking interaction guide mode.

6. An emergency control system for a vehicle door of a vehicle, characterized by The system comprises a main power supply; the system further comprises: an emergency unlocking handle, a backup power supply, a projection module, and a vibration module arranged on each vehicle door of the vehicle; the backup power supply is configured to supply power to the projection module and the vibration module in the case of abnormality of the main power supply; the projection module is configured to output a projection interaction signal to guide a position of the emergency unlocking handle under control of a vehicle door controller; the vibration module is configured to output a vibration interaction signal to guide the position of the emergency unlocking handle under control of the vehicle door controller.

7. The emergency door control system of a vehicle according to claim 6, characterized by A projection position of the projection interaction signal is correspondingly provided with a fluorescent coating, and a shape, an area of the fluorescent coating, and a projection pattern of the projection interaction signal are consistent.

8. The emergency door control system of a vehicle according to claim 6, characterized by The emergency unlocking handle has a preset height of Braille convex points on a surface thereof.

9. A vehicle characterized by comprising: The system comprises: a controller; a memory configured to store one or more programs, which, when executed by the controller, cause the controller to implement the vehicle door emergency control method according to any one of claims 1 to 5.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, and the computer program includes at least one executable instruction, and the executable instruction makes the vehicle emergency door control system / vehicle execute the operation of the vehicle emergency door control method as claimed in any one of claims 1 to 5 when the vehicle emergency door control system / vehicle runs.

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