Vehicle door opening method and device and electronic equipment

Abstract

The invention belongs to the field of vehicles, and discloses a vehicle door opening method and device and electronic device.The method comprises the steps that a vehicle signal is obtained, and whether an out-vehicle door opening mode is started or not is judged according to the vehicle signal; if yes, a control module outside the vehicle is started; when the outside-vehicle control module is started, the vehicle door is opened in response to door opening operation input externally. When the vehicle is collided or in other emergency situations, the vehicle exterior door opening mode can be automatically judged and activated. Once the vehicle enters the mode, the vehicle outside control module is authorized to receive and respond to the external door opening operation, so that the vehicle door is quickly opened, the rescue efficiency and safety are improved, it is ensured that the vehicle can quickly enter the vehicle for rescue under the emergency condition, and meanwhile the risk that the vehicle door cannot be opened due to damage of an internal control system is avoided. In addition, the dependence on a complex electronic system in the vehicle is reduced, and the reliability under various emergency situations is improved.

Description

[Technical Field]

[0001] This invention relates to the field of vehicles, and more specifically, to a method, apparatus, electronic device, and computer-readable storage medium for opening vehicle doors. [Background Technology]

[0002] With the rapid development of the automotive industry, vehicle safety has become a primary consideration in the design and manufacturing process. In traffic accidents, especially after severe collisions, how to quickly and effectively open the doors for rescue has become a key issue in improving occupant survival rates. However, traditional door opening systems mainly rely on in-vehicle control mechanisms, such as manual door handles or electric switches, which may be unusable when the vehicle is severely damaged, occupants are unconscious, or the internal control system fails.

[0003] In emergency situations, rescue personnel often cannot enter the vehicle in time due to locked or damaged doors, leading to delays in rescue efforts. Furthermore, since the vehicle's internal electronic control units may be damaged in a collision, door opening methods relying on internal control systems may become unreliable. Therefore, it is necessary to develop a new door opening method that can quickly and reliably open the doors from the outside in the event of a collision or other emergency. [Summary of the Invention]

[0004] To address the problem in existing technologies where vehicle doors cannot be opened when the vehicle's internal control system fails, this invention provides a method for opening vehicle doors.

[0005] A method for opening a car door includes:

[0006] Acquire vehicle signals; the vehicle signals include collision signals;

[0007] Determine whether to enter the external door opening mode based on the vehicle signal;

[0008] If so, the external control module is activated; when the external control module is activated, the door is opened in response to an externally input door opening operation.

[0009] Optionally, the vehicle signals may also include gear position signal, vehicle speed signal, and total mileage signal;

[0010] The step of determining whether to enter the external door opening mode based on the vehicle signal includes:

[0011] Determine whether a collision has occurred based on the collision signal;

[0012] If so, the validity of the collision is determined based on the gear signal, the vehicle speed signal, and the total mileage signal.

[0013] If the collision is valid, the vehicle will enter the external door opening mode.

[0014] Optionally, after sending an activation signal to the external control module, the method further includes:

[0015] Send a first signal to the instrument cluster so that the instrument cluster displays a first icon according to the first signal;

[0016] When the external control module is detected to be off, a second signal is sent to the instrument cluster so that the instrument cluster turns off the first icon according to the second signal.

[0017] Optionally, the method further includes:

[0018] When the vehicle is not in the external door opening mode, the system detects whether the external control module is in the open state; if so, it sends a third signal to the vehicle communication module so that the vehicle communication module uploads the opening information of the external emergency cover to the cloud server according to the third signal; the cloud server sends the opening information of the external emergency cover to a preset mobile terminal.

[0019] Optionally, after sending the third signal to the vehicle communication module, the method further includes:

[0020] A fourth signal is sent to the body control module so that the body control module issues an alarm upon receiving the fourth signal.

[0021] Optionally, the method further includes:

[0022] Execute the input diagnostic test request to perform the corresponding fault diagnosis test;

[0023] When a fault is detected, the fault information is stored; the fault information includes the fault type, fault code, and fault start and end time.

[0024] A fault signal is sent to the instrument cluster, causing the instrument cluster to display a second icon based on the fault signal;

[0025] The fault signal is sent to the vehicle communication module, so that the vehicle communication module uploads the fault information to the cloud server based on the fault signal; the cloud server sends the fault information to a preset mobile terminal.

[0026] A vehicle door opening system, comprising:

[0027] The vehicle includes an external control module, a combination instrument cluster, an in-vehicle communication module, a body control module, an airbag control module, an electronic stability control module, a vehicle control module, and a controller. The external control module, the combination instrument cluster, the in-vehicle communication module, the body control module, the airbag control module, the electronic stability control module, and the vehicle control module are all communicatively connected to the controller.

[0028] The controller includes a processor and a memory communicatively connected to the processor, the memory storing at least one instruction which, when loaded and executed by the processor, implements the door opening method as described in any of the preceding claims.

[0029] Optionally, the external control module includes:

[0030] Emergency cover located on the outer surface of the vehicle door;

[0031] A DC motor located inside the vehicle door and connected to the emergency cover;

[0032] The first end is connected to the unlocking lever of the door lock in the body control module, and the second end is provided with a pull ring pull cord. The pull ring is located in the cavity formed by the emergency cover and the door.

[0033] Optionally, the door opening system may also include a battery connected to the DC motor.

[0034] Optionally, the door opening system may also include a cloud server that is communicatively connected to the vehicle communication module.

[0035] The vehicle door opening method provided in this invention acquires a vehicle signal and determines whether to enter an external door opening mode based on the vehicle signal; if so, the external control module is activated; when the external control module is activated, it opens the vehicle door in response to an externally input door opening operation. This invention can automatically determine and activate the external door opening mode in the event of a vehicle collision or other emergency. Once in this mode, the external control module is authorized to receive and respond to external door opening operations, thereby quickly opening the door, improving rescue efficiency and safety, ensuring rapid access to the vehicle for rescue in emergencies, and avoiding the risk of doors being unable to open due to damage to the internal control system. Furthermore, this method reduces reliance on complex internal electronic systems of the vehicle, improving reliability in various emergency situations. [Attached Image Description]

[0036] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 A flowchart illustrating a method for opening a vehicle door provided in an embodiment of the present invention;

[0038] Figure 2 for Figure 1 A flowchart illustrating an actual manifestation of S02 in a provided method for opening a car door;

[0039] Figure 3 A flowchart illustrating another method for opening a vehicle door provided in an embodiment of the present invention;

[0040] Figure 4 A flowchart illustrating another method for opening a vehicle door provided in an embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of a vehicle door opening system provided in an embodiment of the present invention.

Detailed Implementation Methods

[0042] To better understand the technical solution of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0044] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0045] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0046] With the rapid development of the automotive industry, vehicle safety has become a primary consideration in the design and manufacturing process. In traffic accidents, especially after severe collisions, how to quickly and effectively open the doors for rescue has become a key issue in improving occupant survival rates. However, traditional door opening systems mainly rely on in-vehicle control mechanisms, such as manual door handles or electric switches, which may be unusable when the vehicle is severely damaged, occupants are unconscious, or the internal control system fails.

[0047] In emergency situations, rescue personnel often cannot enter the vehicle in time due to locked or damaged doors, leading to delays in rescue efforts. Furthermore, since the vehicle's internal electronic control units may be damaged in a collision, door opening methods relying on internal control systems may become unreliable. Therefore, it is necessary to develop a new door opening method that can quickly and reliably open the doors from the outside in the event of a collision or other emergency.

[0048] In existing technologies, some vehicles are equipped with sensor-based systems to detect collisions and activate airbags, but these systems typically do not include external door opening mechanisms. Additionally, some vehicles offer emergency door opening devices, such as emergency unlocking handles inside the vehicle, but these devices are unusable when occupants are unconscious and are difficult for rescue personnel outside the vehicle to operate. Therefore, this invention provides a method for opening vehicle doors to solve the above problems.

[0049] Please refer to Figure 1 The flowchart below shows a method for opening a car door according to an embodiment of the present invention, which includes the following steps:

[0050] Step S01: Obtain vehicle signal.

[0051] In this embodiment, the vehicle signal may include a collision signal, which may be generated by the vehicle's collision detection sensors and transmitted directly to the airbag control module (ABM) via physical wiring. The airbag control module then transmits the collision signal to the door opening system via physical wiring. The collision signal transmission method does not rely on wireless communication or network protocols, but rather utilizes the vehicle's internal electrical wiring system, resulting in higher reliability and safety.

[0052] In this embodiment, the collision signal is a key safety indicator that shows whether the vehicle has been impacted and the severity of the impact. This is crucial for determining whether to activate safety systems (such as airbags and emergency rescue systems). By accurately acquiring the collision signal, the vehicle can automatically determine whether to enter the exterior door opening mode, so that the doors can be opened quickly in an emergency to provide access for rescuers, potentially saving lives and reducing injuries caused by the accident.

[0053] In some embodiments, when a vehicle experiences a frontal collision, a collision sensor mounted behind the bumper immediately detects the impact force and transmits this signal to the vehicle's airbag control module. The airbag control module assesses the severity of the collision and, if necessary, responds to the collision by activating the airbags and sending a collision signal to the vehicle's door opening system. For example, if the vehicle's safety system is designed to automatically enter an exterior door opening mode upon detecting a collision signal, the system will send an opening signal to the exterior control module, allowing external rescue personnel to open the doors via external mechanisms for rapid rescue.

[0054] Step S02: Determine whether to enter the external door opening mode based on the vehicle signal.

[0055] If so, proceed to step S03.

[0056] In this embodiment, when the vehicle encounters a collision or other emergency, these sensors generate corresponding signals, such as a collision signal. Upon receiving the collision signal, the door opening system quickly analyzes and assesses the severity of the accident. If the collision signal indicates a severe collision, the control system determines that the vehicle needs to enter an exterior door opening mode. This allows external rescue personnel to quickly open the doors and provide assistance if occupants are unable to move independently, ensuring rapid entry into the vehicle in critical moments and timely rescue of injured occupants, thereby improving the survival rate of occupants after a vehicle accident.

[0057] For example, if a car is involved in a serious rear-end collision on a highway, the collision sensor detects a strong impact and sends a collision signal to the airbag control module. The airbag control module determines to deploy the airbags based on the collision signal and sends the collision signal to the door opening system. The door opening system determines that it needs to immediately enter the external door opening mode and then activates the external control module outside the door, so that rescuers can quickly open the door and carry out rescue without waiting for the occupants inside the vehicle to respond.

[0058] Please refer to Figure 2 ,for Figure 1 A flowchart illustrating an actual implementation of step S02 in a provided method for opening a vehicle door. In some embodiments, the remaining navigation time in the navigation information, the vehicle's driving behavior, and the current battery charge can be comprehensively considered to accurately calculate the minimum power generation required by the range extender, ensuring that the vehicle can meet its energy needs during driving. Simultaneously, vehicle temperature is considered to determine the minimum power generation and duration required for carbon removal, i.e., as mentioned in step S02, determining the optimal power generation of the range extender based on the total energy demand and vehicle driving information. Specifically, this can be as follows: Figure 2 The steps shown are as follows:

[0059] Step S021: Determine whether a collision has occurred based on the collision signal.

[0060] If so, proceed to step S022.

[0061] In this embodiment, the door opening system assesses whether a collision has occurred based on the signal strength and characteristics of the collision signal transmitted from the airbag control module. For example, the collision signal could be:

[0062] ABM_CrashOutputStatus = 0x1 indicates a collision was sent.

[0063] Based on this, in some embodiments, the collision signal may further include a collision output valid indication:

[0064] ABM_CrashOutputStatusValid=0X0 indicates that the collision signal is valid.

[0065] Step S022: Determine whether the collision is valid based on the gear position signal, vehicle speed signal, and total mileage signal.

[0066] If so, proceed to step S023.

[0067] In this embodiment, the Vehicle Control Unit (VCU) transmits the gear position signal to the door opening system via physical wiring, the Electronic Stability Control (ESC) module transmits the vehicle speed signal to the door opening system via the CAN bus, and the integrated circuit (IC) transmits the total mileage signal to the door opening system via the CAN bus.

[0068] The door opening system verifies the authenticity and urgency of a collision by analyzing three key parameters: gear position, vehicle speed, and total mileage. The gear position signal helps the system understand whether the vehicle is in an appropriate driving state, while the vehicle speed and total mileage signals provide dynamic information about the vehicle at the time of a collision. These factors collectively influence the safety system's response. For example, if the vehicle speed signal indicates the vehicle is stationary while the gear position signal indicates the vehicle is in driving gear, this discrepancy may indicate that the collision signal was caused by a malfunction or system error, rather than a genuine collision. Therefore, this comprehensive judgment method improves the accuracy of collision detection and avoids erroneously triggering the exterior door opening mode due to misjudgment.

[0069] In this embodiment, when the collision is valid, it proves that the vehicle is in danger. At this time, the door opening system enters the external door opening mode, so that the user can input the door opening operation from outside the vehicle, and then quickly open the door for rescue. This ensures that the vehicle can be quickly entered at critical moments to rescue injured occupants in a timely manner, thereby improving the survival rate of occupants after a vehicle accident.

[0070] In some embodiments, the gear position signal can be:

[0071] VCU_ShiftLeverPos = 0x0 indicates that the gear signal is valid;

[0072] The vehicle speed signal can be:

[0073] ESC_VehicleSpeedValid = 0x0: Valid indicates that the vehicle speed signal is valid;

[0074] The total mileage information can be:

[0075] IC_Mileage = TBD indicates mileage data; IC_TotalMileageValid = 0x0 valid indicates that the mileage data is valid.

[0076] In some embodiments, when the collision is deemed invalid, the door opening system does not enter the exterior door opening mode.

[0077] Step S023: Enter the exterior door opening mode.

[0078] Based on the above technical solution, this embodiment first determines whether a collision has occurred using a collision signal, and then further verifies the validity of the collision using gear position and vehicle speed signals. This ensures that the exterior door opening mode is only triggered when the vehicle is actually in motion and a valid collision has occurred. This multi-signal integrated judgment method improves the accuracy and reliability of the system, avoids unnecessary exterior door opening operations due to misjudgment, and ensures a rapid response in the event of a real collision, allowing the doors to be opened promptly for rescue, thereby enhancing the vehicle's safety performance and the level of occupant protection.

[0079] Step S03: Activate the external control module.

[0080] In this embodiment, the external control module is automatically activated after the door opening system confirms a valid collision. Its working principle is as follows: once a severe collision is detected and emergency rescue is confirmed, the system activates the external control module, placing it in a standby state. At this time, if external rescue personnel input a door-opening command into the external control module, the module will immediately respond to this external input, triggering the door to open. This ensures that rescue personnel can quickly enter the vehicle to assist the occupants, especially when the occupants are unable to open the door themselves, such as in cases of vehicle power failure or unconsciousness. This embodiment significantly improves rescue efficiency and reduces rescue time.

[0081] In some embodiments, the external control module can be specifically implemented as follows:

[0082] An electromagnetic key paired with the door lock is installed on the outside of the vehicle door. When the external control module is not activated, the electromagnetic key is in a dormant state and will not affect the normal opening and closing of the door. Once the external control module is activated, the electromagnetic key is activated. After rescue personnel input the door opening operation into the external control module, they can unlock the door lock using the electromagnetic key, thereby unlocking the door and allowing it to be opened from the outside.

[0083] In some embodiments, to provide users with intuitive feedback on the status of the external control module, the icon display of the instrument cluster can be updated according to the status of the external control module. That is, after executing step S03 and sending an activation signal to the external control module, the following steps can also be performed:

[0084] Send a first signal to the instrument cluster so that the instrument cluster displays a first icon based on the first signal;

[0085] When the external control module is detected to be off, a second signal is sent to the instrument cluster so that the instrument cluster turns off the first icon according to the second signal.

[0086] In this embodiment, when the instrument cluster displays the first icon, it serves as a reminder to the user that the external control module is currently active. The first signal controls the instrument cluster to display the first icon, and the second signal controls the instrument cluster to deactivate the first icon. This embodiment achieves real-time visual feedback on the status of the external control module by sending an activation signal to the external control module through the door opening system, and then sending a signal to the instrument cluster to update the display status. This reminds the user to promptly deactivate the external control module in non-emergency situations, thereby improving vehicle safety and ease of operation.

[0087] In some embodiments, the first signal may be:

[0088] EOD_EmergencyCover = 0x1 indicates that the external control module is enabled;

[0089] EOD_EmergencyCoverValid=0X0 indicates that the signal from the external control module is valid.

[0090] In some embodiments, when the instrument cluster displays the first icon, it may also display a corresponding text reminder message, such as "External control module is on";

[0091] In some embodiments, the second signal may be:

[0092] EOD_EmergencyCover = 0x0 indicates that the external control module is off;

[0093] EOD_EmergencyCoverValid=0X0 indicates that the signal from the external control module is valid.

[0094] Based on the above technical solution, the vehicle door opening method provided in this embodiment of the invention acquires a vehicle signal and determines whether to enter the external door opening mode based on the vehicle signal; if so, the external control module is activated; when the external control module is activated, it responds to externally input door opening operations to open the vehicle door. This invention can automatically determine and activate the external door opening mode when a vehicle collision or other emergency occurs. Once this mode is entered, the external control module is authorized to receive and respond to external door opening operations, thereby quickly opening the vehicle door, improving rescue efficiency and safety, ensuring rapid access to the vehicle for rescue in emergency situations, and avoiding the risk of doors being unable to open due to damage to the internal control system. Furthermore, this method reduces reliance on complex electronic systems inside the vehicle, improving reliability in various emergency situations.

[0095] In some embodiments, when it is determined from vehicle signals that entering the external door opening mode is not necessary, the system can also detect whether the external control module is open to determine whether the vehicle door has been forcibly opened. Please refer to [reference needed]. Figure 3 The flowchart below shows another method for opening a vehicle door provided in an embodiment of the present invention, which includes the following steps:

[0096] Step S11: Obtain vehicle signal.

[0097] Step S12: Determine whether to enter the external door opening mode based on the vehicle signal.

[0098] If not, proceed to step S13.

[0099] Step S13: Detect whether the external control module is in the on state.

[0100] If so, proceed to step S14.

[0101] In this embodiment, when the vehicle signal indicates that no emergency door opening has occurred, the system will not automatically enter the external door opening mode, but will remain alert and continue to monitor the status of the external control module. If an abnormal opening of the external control module is detected, which may indicate that the door has been subjected to an unauthorized forced entry attempt, step S14 will be executed.

[0102] Step S14: Send a third signal to the vehicle communication module.

[0103] In this embodiment, the third signal is the signal that controls the vehicle communication module (TBOX) to upload the opening information of the emergency cover to the cloud server. After receiving the opening information of the emergency cover, the cloud server will send it to a preset mobile terminal, such as the mobile phone of the vehicle owner or security personnel, to promptly remind them of the potential security threats to the vehicle.

[0104] Step S15: Send a fourth signal to the vehicle body control module.

[0105] In this embodiment, the fourth signal is a control signal for the vehicle body control module.

[0106] When the door opening system detects an abnormal opening of the external control module, it sends a fourth signal to the Body Control Module (BCM), activating the vehicle's alarm system and emitting an audible and visual alarm to deter potential intruders and attract the attention of those nearby.

[0107] Based on the above technical solution, this embodiment implements a comprehensive safety strategy by continuously monitoring vehicle signals and the status of the external control module to improve the vehicle's responsiveness in emergency situations. When vehicle signals indicate that no emergency door opening has occurred, the system will not automatically enter the external door opening mode, but will remain vigilant and continue monitoring the status of the external control module. If an abnormal opening of the external control module is detected, this may indicate that the door has been subjected to unauthorized forced entry. At this time, the system sends a third signal to the vehicle communication module, triggering a series of alarm actions: the vehicle communication module uploads the opening information of the external emergency cover to the cloud server, and the cloud server then pushes the information to a preset mobile terminal. Simultaneously, the system sends a fourth signal to the vehicle body control module, activating the vehicle's alarm system and issuing an audible and visual alarm. This not only enhances the vehicle's anti-theft protection but also provides the owner with a remote monitoring method, ensuring the safety of the vehicle and its occupants.

[0108] In some embodiments, to improve the reliability of the door opening system, fault diagnosis tests can also be performed on the door opening system. Please refer to [reference needed]. Figure 4 The flowchart below shows another method for opening a vehicle door provided in an embodiment of the present invention, which includes the following steps:

[0109] Step S21: Execute the input diagnostic test request to perform the corresponding fault diagnosis test.

[0110] In this embodiment, the door opening system can automatically run a series of predetermined inspection procedures based on test requests initiated by users or maintenance personnel to detect faults or performance problems in various systems and components of the vehicle. This process can utilize specialized diagnostic tools, such as an OBD-II scanner, communicating with the vehicle's control module through the vehicle's diagnostic interface. The door opening system checks the functional status of sensors, actuators, circuit connections, and other critical components according to the preset test procedures, thereby ensuring that the vehicle's safety and performance remain at their optimal state. Regular fault diagnosis tests can identify potential problems early, allowing for preventative measures to be taken and preventing the faults from worsening and causing more serious damage or safety risks.

[0111] In some embodiments, the vehicle's diagnostic interface may specifically be the UDS (Unified Diagnostic Services) diagnostic interface.

[0112] Step S22: When a fault is detected, the fault information is stored.

[0113] In this embodiment, the fault information may include fault type, fault code, and fault start and end time, which facilitates maintenance personnel to carry out maintenance based on accurate fault diagnosis data.

[0114] Step S23: Send a fault signal to the instrument cluster so that the instrument cluster displays a second icon based on the fault signal.

[0115] In this embodiment, the second icon is the icon displayed on the instrument cluster when the door opening system malfunctions. This embodiment achieves real-time visualization of fault information by sending the fault signal to the instrument cluster.

[0116] Step S24: Send the fault signal to the vehicle communication module.

[0117] In this embodiment, a fault signal is sent to the vehicle communication module, which then uploads the fault information to a cloud server. The cloud server then sends the fault information to a preset mobile terminal. This enables remote notification of fault information, allowing vehicle owners to be promptly informed of any malfunctions in the door opening system and take timely action, significantly improving the reliability of the door opening system.

[0118] Based on the above technical solution, this embodiment improves the reliability of the door opening system by integrating fault diagnosis and communication functions. By executing diagnostic test requests, the system can proactively identify and respond to potential faults, ensuring that problems are detected before they affect the door opening function, and providing repair personnel with accurate fault diagnosis data, thereby accelerating the repair process. Furthermore, sending fault signals to the instrument cluster and vehicle communication module enables real-time visualization and remote notification of fault information, allowing vehicle owners to be informed of the vehicle's status promptly and take timely measures, significantly improving the reliability of the door opening system.

[0119] Please refer to Figure 5 The diagram below illustrates the structure of a vehicle door opening system according to an embodiment of the present invention. The vehicle door opening system may include:

[0120] The vehicle includes an external control module, a combination instrument cluster, an in-vehicle communication module, a body control module, an airbag control module, an electronic stability control module, a vehicle control module, and a controller. The external control module, the combination instrument cluster, the in-vehicle communication module, the body control module, the airbag control module, the electronic stability control module, and the vehicle control module are all connected to the controller for communication.

[0121] The controller includes a processor and a memory communicatively connected to the processor. The memory stores at least one instruction that, when loaded and executed by the processor, implements a door opening method as described in any of the above embodiments.

[0122] Based on the above embodiments, in some embodiments, the external control module may include:

[0123] Emergency cover located on the outer surface of the vehicle door;

[0124] A DC motor located inside the vehicle door and connected to the emergency cover;

[0125] The first end is connected to the unlocking lever of the door lock in the body control module, and the second end is equipped with a pull ring pull cable. The pull ring is located in the cavity formed by the emergency cover and the door.

[0126] In this embodiment, when the controller confirms entry into the external door opening mode, it drives the DC motor to rotate forward, which in turn drives the connecting shaft to rotate, causing the latch to retract from the slot. The emergency cover automatically pops up, completing the opening process and exposing the pull cable. The pull cable is connected to the door lock lever of the body control module. Rescuers outside the vehicle can unlock the door by pulling the pull cable, and open the door by pulling the pull cable again. This improves the efficiency of vehicle rescue after an accident, ensures the safe evacuation of occupants, and also provides rescuers with a quick way to enter the vehicle.

[0127] In some embodiments, the external control module may include two DC motors and two emergency covers, wherein two pull cables are respectively connected to the unlocking levers of the driver's side door lock and the passenger side door lock.

[0128] Based on the above embodiments, in some embodiments, the door opening system may also include a battery connected to a DC motor, ensuring that the door opening system can still work normally when the vehicle's main battery power fails or in an emergency, thereby improving the vehicle's safety and reliability.

[0129] Based on the above embodiments, in some embodiments, the door opening system further includes a cloud server that is communicatively connected to the vehicle communication module.

[0130] It should be noted that although the steps are described in a specific order above, it does not mean that the steps must be executed in the above specific order. In fact, some of these steps can be executed concurrently, or even in a different order, as long as the required function can be achieved.

[0131] This invention can be a system, method, and / or computer program product. A computer program product may include a readable storage medium having computer-readable program instructions loaded thereon for causing a processor to implement various aspects of the invention.

[0132] A readable storage medium can be a tangible device that holds and stores instructions for use by an instruction execution device. Readable storage media can include, for example, but not limited to, electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination thereof. More specific examples (a non-exhaustive list) of readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital multifunction disc (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or recessed protrusions storing instructions thereon, and any suitable combination thereof.

[0133] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for opening a car door, characterized in that, include: Acquire vehicle signals; the vehicle signals include collision signals; Determine whether to enter the external door opening mode based on the vehicle signal; If so, then activate the external control module; When the external control module is activated, it opens the car door in response to an external input door opening operation.

2. The method according to claim 1, characterized in that, The vehicle signals also include gear position signal, vehicle speed signal and total mileage signal; The step of determining whether to enter the external door opening mode based on the vehicle signal includes: Determine whether a collision has occurred based on the collision signal; If so, the validity of the collision is determined based on the gear signal, the vehicle speed signal, and the total mileage signal. If the collision is valid, the vehicle will enter the external door opening mode.

3. The method according to claim 1, characterized in that, After sending an activation signal to the external control module, the method further includes: Send a first signal to the instrument cluster so that the instrument cluster displays a first icon according to the first signal; When the external control module is detected to be off, a second signal is sent to the instrument cluster so that the instrument cluster turns off the first icon according to the second signal.

4. The method according to claim 1, characterized in that, The method further includes: When the vehicle is not in the external door opening mode, it is detected whether the external control module is in the on state; If so, a third signal is sent to the vehicle communication module, so that the vehicle communication module uploads the opening information of the emergency cover to the cloud server according to the third signal; the cloud server sends the opening information of the emergency cover to a preset mobile terminal.

5. The method according to claim 4, characterized in that, After sending a third signal to the vehicle communication module, the method further includes: A fourth signal is sent to the body control module so that the body control module issues an alarm upon receiving the fourth signal.

6. The method according to claim 1, characterized in that, The method further includes: Execute the input diagnostic test request to perform the corresponding fault diagnosis test; When a fault is detected, the fault information is stored; the fault information includes the fault type, fault code, and fault start and end time. A fault signal is sent to the instrument cluster, causing the instrument cluster to display a second icon based on the fault signal; The fault signal is sent to the vehicle communication module, so that the vehicle communication module uploads the fault information to the cloud server based on the fault signal; the cloud server sends the fault information to a preset mobile terminal.

7. A vehicle door opening system, characterized in that, include: The vehicle includes an external control module, a combination instrument cluster, an in-vehicle communication module, a body control module, an airbag control module, an electronic stability control module, a vehicle control module, and a controller. The external control module, the combination instrument cluster, the in-vehicle communication module, the body control module, the airbag control module, the electronic stability control module, and the vehicle control module are all communicatively connected to the controller. The controller includes a processor and a memory communicatively connected to the processor, the memory storing at least one instruction which, when loaded and executed by the processor, implements the door opening method as described in any one of claims 1-6.

8. The door opening system according to claim 7, characterized in that, The external control module includes: Emergency cover located on the outer surface of the vehicle door; A DC motor located inside the vehicle door and connected to the emergency cover; The first end is connected to the unlocking lever of the door lock in the body control module, and the second end is provided with a pull ring pull cord. The pull ring is located in the cavity formed by the emergency cover and the door.

9. The vehicle door opening system according to claim 8, characterized in that, The door opening system also includes a battery connected to the DC motor.

10. The vehicle door opening system according to claim 7, characterized in that, The door opening system also includes a cloud server that is connected to the vehicle communication module.

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