Vehicle emergency unlocking system and method and vehicle

Abstract

The invention provides a vehicle emergency unlocking system and method and a vehicle, and the system comprises a collision detection unit which is used for obtaining a collision signal; the door control unit is used for receiving the collision signal and unlocking a vehicle door lock according to the collision signal; the whole vehicle storage battery is used for supplying power to the door control unit; the energy storage unit is used for supplying power to the door control unit, and the emergency unlocking switch is installed on the outer side of the vehicle body, electrically connected between the energy storage unit and the door control unit and used for controlling the energy storage unit to supply power to the door control unit when a storage battery of the whole vehicle cannot supply power to the door control unit. After the vehicle is collided, the vehicle door lock can be opened through the door control unit according to the collision signal, especially under the condition that a storage battery of the whole vehicle is powered off after collision, the energy storage unit can serve as a standby power source, external rescue workers operate the emergency unlocking switch to enable the energy storage unit to supply power to the door control unit, and the door control unit is powered off. Therefore, under the condition that an external rescue worker does not have a legal key of the vehicle, the external rescue worker can enter the vehicle normally, and the maintenance cost which is greatly increased in the later period due to violent damage is avoided.

Description

Technical Field

[0001] The present invention relates to the field of vehicles, and in particular to a vehicle emergency unlocking system, method and vehicle. Background Art

[0002] Cars are an indispensable part of people's daily lives. With the development of car door technology, more and more car models are beginning to use electric door opening. The application of electric door opening has enhanced the vehicle's sense of technology and convenience, making the car's intelligent configuration feel refreshing, and also allowing the car's intelligent technology to be further applied.

[0003] However, the safety of automobiles is a complex system engineering, and the door design is also an important part of it. After an accidental collision, the doors often fail to open normally. Whether the doors can be unlocked normally after a car collision is a key function related to the life safety of the occupants after the accident. The failure of the doors to open normally makes it difficult for rescuers to quickly open the doors for rescue, especially when the power supply of the door control system is disconnected from the door control system, such as the battery is damaged after the vehicle collision, which will cause the door control system to fail to start, and then the door will also fail to open normally. Summary of the invention

[0004] The purpose of the present invention is to provide a vehicle emergency unlocking system, method and vehicle to solve the above-mentioned technical problem that "the vehicle door cannot be opened normally, making it difficult for rescue personnel to quickly open the door for rescue, especially when the power supply of the door control system is disconnected from the door control system, such as when the battery is damaged after a vehicle collision, the door control system will be unable to start, and the door will also be unable to open normally."

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention provides a vehicle emergency unlocking system, comprising: a collision detection unit, for acquiring a collision signal;

[0007] A door control unit, used for receiving the collision signal and unlocking the door lock according to the collision signal;

[0008] A vehicle battery, used to supply power to the door control unit;

[0009] an energy storage unit, used to supply power to the door control unit, and

[0010] The emergency unlocking switch is installed on the outside of the vehicle body and is electrically connected between the energy storage unit and the door control unit. It is used to control the energy storage unit to supply power to the door control unit when the vehicle battery cannot supply power to the door control unit.

[0011] In one embodiment of the present invention, the first controller is used to receive the collision signal and unlock the door lock according to the power supply of the vehicle battery and / or the energy storage unit; and

[0012] A memory is used to store the collision signal.

[0013] In one embodiment of the present invention, the first controller is further configured to clear the collision signal stored in the memory after the vehicle is started.

[0014] In one embodiment of the present invention, the collision detection unit includes:

[0015] A collision sensor, used for sending the collision signal and the invalid signal; and

[0016] The second controller is used for receiving the collision signal and the invalid signal, and transmitting the collision signal and the invalid signal to the first controller.

[0017] In one embodiment of the present invention, the second controller is connected to the door control unit via a CAN bus and / or a physical hard line, and the door control unit simultaneously receives the collision signal and the invalid signal via the CAN bus and / or the physical hard line.

[0018] In one embodiment of the present invention, the second controller is also used to control the transmission period of the invalid signal on the CAN bus to be a first transmission period value, and the transmission period of the collision signal on the CAN bus to be a second transmission period value, wherein the first transmission period value is greater than the second transmission period value.

[0019] In one embodiment of the present invention, the second controller is also used to control the pulse width modulation duty cycle of the invalid signal on the physical hard line to be a first duty cycle value, and the pulse width modulation duty cycle of the collision signal on the physical hard line to be a second duty cycle value, wherein the first duty cycle value is smaller than the second duty cycle value.

[0020] In one embodiment of the present invention, the vehicle battery is also used to supply power to the energy storage unit.

[0021] The present invention also provides a vehicle emergency unlocking method, wherein the vehicle comprises a collision detection unit, a door control unit, a vehicle battery, an energy storage unit and an emergency unlocking switch installed on the outside of the vehicle body, and the emergency unlocking method comprises:

[0022] Acquiring a collision signal through the collision detection unit;

[0023] Controlling the energy storage unit to supply power to the door control unit through the emergency unlocking switch;

[0024] When the door control unit receives the collision signal, the door lock is unlocked.

[0025] The present invention also provides a vehicle, on which is provided a vehicle emergency unlocking system as claimed in any one of the above claims.

[0026] As described above, the present invention provides a vehicle emergency unlocking system, method and vehicle. After a vehicle collision occurs, the present invention can open the door lock according to the collision signal through the door control unit. In particular, when the battery of the entire vehicle is powered off after a collision, an energy storage unit is provided to serve as a backup power supply. External rescue personnel operate the emergency unlocking switch to enable the energy storage unit to supply power to the door control unit, so as to unlock the vehicle from the outside of the vehicle. Therefore, even if the external rescue personnel do not have the legal key of the vehicle, they can still enter the vehicle normally, thus avoiding violent damage that leads to a substantial increase in maintenance costs in the later stage.

[0027] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0029] Figure 1 The figure is a block diagram of a vehicle emergency unlocking system in one embodiment of the present invention.

[0030] Figure 2 The figure is a schematic diagram of a vehicle emergency unlocking process in one embodiment of the present invention.

[0031] Figure 3 The present invention is a flowchart of a vehicle emergency unlocking method according to an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 100-collision detection unit, 200-door control unit, 300-vehicle battery, 400-energy storage unit, 500-emergency unlocking switch. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Refer to the attached Figure 1-2 The vehicle emergency unlocking system according to the first embodiment of the present application is exemplarily described, and includes a collision detection unit 100 , a door control unit 200 , a vehicle battery 300 , an energy storage unit 400 , and an emergency unlocking switch 500 .

[0036] The collision detection unit 100 is used to obtain a collision signal, the door control unit 200 is used to receive the collision signal and open the door lock according to the collision signal, the vehicle battery 300 is used to supply power to the door control unit 200, the energy storage unit 400 is used to supply power to the door control unit 200, and the emergency unlocking switch 500 is installed on the outside of the vehicle body and is electrically connected between the energy storage unit 400 and the door control unit 200. It is used to control the energy storage unit 400 to supply power to the door control unit 200 when the vehicle battery 300 cannot supply power to the door control unit 200.

[0037] The main functions of the vehicle battery 300 in the car include starting the engine, supplementing power, storing energy, voltage stability, and protecting electronic equipment. In the embodiment of the present application, the vehicle battery 300 is used to supply power to the door control unit 200. In the internal structure of the vehicle, the vehicle battery 300 is a conventional setting for providing power for the door control unit 200.

[0038] In an embodiment of the present application, the energy storage unit 400 is used to supply power to the gate control unit 200. Specifically, the energy storage unit 400 may be a supercapacitor. As an energy storage element, the supercapacitor has high reliability and stability, and has fast charging and discharging capabilities and a long cycle life. In addition, the energy storage unit 400 may be arranged in the middle of the vehicle, and an anti-collision structure may be added around it to ensure that the backup battery will not be damaged by the collision. In the present application, the energy storage unit 400 may be used as a backup battery for the gate control unit 200. The energy storage unit 400 and the vehicle battery 300 are relatively independent in power supply and do not interfere with each other. When the vehicle collides and the battery is powered off, and the gate control unit 200 cannot be powered normally, the backup battery can continue to power the gate control unit 200.

[0039] In an embodiment of the present application, the emergency unlocking switch 500 is installed on the outside of the vehicle body, electrically connected between the energy storage unit 400 and the door control unit 200, and is used to control the energy storage unit 400 to supply power to the door control unit 200 when the vehicle battery 300 cannot supply power to the door control unit 200. In an embodiment of the present application, the emergency unlocking switch 500 is installed on the outside of the vehicle body, for example, it is set on the vehicle rearview mirror, door handle or B-pillar. The emergency unlocking switch 500 can also be set at other positions on the outside of the vehicle body, and those skilled in the art can set it according to actual conditions. In the present application, the emergency unlocking switch 500 is installed on the outside of the vehicle body to facilitate people outside the vehicle to operate the emergency unlocking switch 500, so as to unlock the door from outside the vehicle.

[0040] In the embodiment of the present application, the door control unit 200 includes a first controller and a memory. The first controller is used to receive a collision signal and unlock the door lock according to the power supply of the vehicle battery 300 and / or the energy storage unit 400. The memory is used to store the collision signal. The memory is provided to ensure that if the door control unit fails to open the door in time after the collision signal is issued, the door control unit can also open the door according to the collision signal after the emergency unlocking switch turns on the backup power supply of the door control unit.

[0041] For example, the memory may use EEPROM (Electrically Erasable Programmable Read-Only Memory), which allows data to be erased and programmed multiple times without the use of external devices or high-temperature processing. This type of memory belongs to non-volatile memory technology, and the internally stored data can remain intact even when the power is turned off.

[0042] For example, the first controller realizes opening and closing of the door by driving the electric actuator of the door control system. Existing electrically driven door locks include electronic locks and electric door handles, etc. Therefore, depending on the type of electric door lock of the car, the first controller can control the electronic lock by driving the door lock motor, or control the electric door handle by driving the electric door handle motor.

[0043] In the embodiment of the present application, the first controller is also used to clear the collision signal stored in the memory after the vehicle is started. Specifically, after a new ignition cycle of the vehicle starts, the first controller detects that the power supply of the vehicle is normal and no collision signal is received, and then the first controller controls to clear the collision signal in the EEPROM to release the memory in the memory and optimize the use of the memory.

[0044] In the embodiment of the present application, the collision detection unit 100 includes a collision sensor and a second controller, and the collision sensor is used to send a collision signal and an invalid signal. The collision sensor can detect and determine the collision situation. When the collision sensor identifies that the vehicle has collided, the electrical signal sent to the second controller is a collision signal. At this time, the collision signal is a valid signal. Relatively speaking, when the vehicle has not collided, the electrical signal sent by the collision sensor to the second controller is an invalid signal.

[0045] For example, when no collision occurs, the collision sensor sends a signal to the second controller, and the signal value can be set to "0"; when a collision occurs, the collision sensor can detect the acceleration change of the object. When the vehicle collides, the sensor will detect abnormal acceleration changes. When the detected acceleration change value exceeds the preset threshold of the collision sensor, it is considered that a collision event has occurred. At this time, the collision sensor will send an electrical signal to the second controller of the vehicle to characterize the collision of the vehicle. The signal value can be set to "1".

[0046] For example, multiple collision sensors can be set according to actual needs. For example, the collision sensors can include a front collision sensor for collecting information about a frontal collision of the vehicle and a side collision sensor for collecting information about a side collision of the vehicle. As a non-limiting example, the installation location of the collision sensor can be, for example, the inside of the front fenders on both sides of the vehicle body, under the headlight bracket, on the left and right sides of the engine radiator bracket, under the dashboard and glove box in the cab, etc. Installing multiple collision sensors on the vehicle further improves the stability and reliability of the vehicle collision safety control system, ensuring that collision information can be stably obtained when collisions occur in different directions of the vehicle.

[0047] In the embodiment of the present application, the second controller is a key component of the airbag system. On the one hand, the second controller is used to receive and process the electrical signal sent by the collision sensor. On the other hand, after the electrical signal is analyzed and processed by the second controller, the second controller makes a judgment on whether to execute safety control and issues relevant instructions based on the judgment result.

[0048] The specific working process of this application is as follows: when the vehicle collides, the collision sensor sends a collision signal to the first controller. After receiving the collision signal, the first controller will store the collision status in the EEPROM. When the vehicle battery 300 is normal after the collision, the first controller can detect that the normal power supply port VCC is normally powered, that is, the vehicle battery 300 can normally power the first controller. At this time, the first controller will drive the door lock to unlock; further, when the person outside the vehicle presses the emergency unlocking switch 500, the energy storage unit 400 will release electrical energy to power the first controller. When the first controller detects that the vehicle battery 300 and the energy storage unit 400 are both powered normally, and reads the collision signal stored in the EEPROM, it can drive the door lock to unlock again. When the vehicle battery 300 loses power after a collision, the person outside the vehicle presses the emergency unlocking switch 500, and the energy storage unit 400 releases power to supply power to the first controller. The first controller detects that the energy storage unit 400 is powered normally and the vehicle battery 300 is powered abnormally, and after reading the collision signal stored in the EEPROM, it drives the door lock to unlock. In this application, the energy storage unit 400 is added to the vehicle. Even if the vehicle loses power after a collision, the energy storage unit 400 can be used to supply power to the door control unit 200 to unlock the vehicle normally.

[0049] It should be noted that when the first controller reads that no valid collision signal is stored in the memory, the person outside the vehicle presses the emergency unlocking switch 500, and the emergency unlocking is not performed.

[0050] When a serious traffic accident occurs, the occupants in the car may faint and be unable to open the door from the inside of the car, requiring rescue by outside personnel. Since the outside rescue personnel usually do not have the legal key of the vehicle, they can only resort to violent window breaking or door prying for rescue, which seriously affects the rescue efficiency and greatly increases the cost of later maintenance of the vehicle. After the vehicle collides, the present application can open the door lock according to the collision signal through the door control unit 200. In particular, when the battery 300 of the entire vehicle loses power after the collision, an energy storage unit 400 is provided as a backup power supply. The external rescue personnel operate the emergency unlocking switch 500 so that the energy storage unit 400 supplies power to the door control unit to unlock the vehicle from the outside of the vehicle. Therefore, when the external rescue personnel do not have the legal key of the vehicle, they can enter the vehicle normally, avoiding the substantial increase in maintenance costs later due to violent damage.

[0051] In an embodiment of the present application, the second controller is connected to the physical hard wire and / or the gate control unit 200 via the CAN bus, and the gate control unit 200 simultaneously receives the collision signal and the invalid signal via the CAN bus and / or the physical hard wire. Normally, the second controller communicates with other related modules via the CAN bus. Of course, the second controller can also communicate with other related modules only via the physical hard wire. Preferably, the second controller communicates with other related modules via both the CAN bus and the physical hard wire, so that when the signal transmission of either the CAN bus or the physical hard wire fails after a collision, the second controller and the first controller can still transmit signals via another communication method. The present application improves the reliability and stability of signal transmission between the second controller and the first controller by adding a redundant design for collision signals.

[0052] In an embodiment of the present application, the second controller is also used to control the transmission period of the invalid signal on the CAN bus to be a first transmission period value, and the transmission period of the collision signal on the CAN bus to be a second transmission period value, wherein the first transmission period value is greater than the second transmission period value. For example, when no collision occurs, the collision signal is transmitted according to a transmission period of 500ms to reduce the load of the CAN bus; after a collision occurs, the collision signal is transmitted according to a transmission period of 20ms to improve the bus signal transmission arbitration priority and ensure the reliability and stability of signal transmission. The first transmission period value and the second transmission period value can also be set to other suitable values, and those skilled in the art will not make specific restrictions.

[0053] In an embodiment of the present application, the second controller is also used to control the pulse width modulation duty cycle of the invalid signal on the physical hard line to be a first duty cycle value, and the pulse width modulation duty cycle of the collision signal on the physical hard line to be a second duty cycle value, wherein the first duty cycle value is less than the second duty cycle value. For example, when no collision occurs, the pulse width modulation duty cycle is 30%; after a collision occurs, the pulse width modulation duty cycle is 70%, and the reliability of the collision signal is further ensured by the change of the duty cycle before and after. The first duty cycle value and the second duty cycle value can also be set to other suitable values, and those skilled in the art will not make specific restrictions.

[0054] In the embodiment of the present application, the vehicle battery 300 is also used to supply power to the energy storage unit 400. When the ignition key of the vehicle is placed in the IGN ON position (ignition position), that is, after the vehicle is started, the vehicle battery 300 starts to supply power to the energy storage unit 400. The energy storage unit 400 can be charged quickly, and the electric energy will be stored in the energy storage unit 400.

[0055] Refer to the attached Figure 3 An exemplary description is given of a vehicle emergency unlocking method according to the first embodiment of the present application.

[0056] The vehicle includes a collision detection unit 100, a door control unit 200, a vehicle battery 300, an energy storage unit 400, and an emergency unlocking switch 500 installed on the outside of the vehicle body. The emergency unlocking method includes:

[0057] S1, obtaining a collision signal through the collision detection unit 100.

[0058] In the embodiment of the present application, the collision detection unit 100 includes a collision sensor and a second controller, and the collision sensor is used to send a collision signal and an invalid signal. The collision sensor can detect and determine the collision situation. When the collision sensor identifies that the vehicle has collided, the electrical signal sent to the second controller is a collision signal. At this time, the collision signal is a valid signal. Relatively speaking, when the vehicle has not collided, the electrical signal sent by the collision sensor to the second controller is an invalid signal.

[0059] For example, when no collision occurs, the collision sensor sends a signal to the second controller, and the signal value can be set to "0"; when a collision occurs, the collision sensor can detect the acceleration change of the object. When the vehicle collides, the sensor will detect abnormal acceleration changes. When the detected acceleration change value exceeds the preset threshold of the collision sensor, it is considered that a collision event has occurred. At this time, the collision sensor will send an electrical signal to the second controller of the vehicle to characterize the collision of the vehicle. The signal value can be set to "1".

[0060] For example, multiple collision sensors can be set according to actual needs. For example, the collision sensors can include a front collision sensor for collecting information about a frontal collision of the vehicle and a side collision sensor for collecting information about a side collision of the vehicle. As a non-limiting example, the installation location of the collision sensor can be, for example, the inside of the front fenders on both sides of the vehicle body, under the headlight bracket, on the left and right sides of the engine radiator bracket, under the dashboard and glove box in the cab, etc. Installing multiple collision sensors on the vehicle further improves the stability and reliability of the vehicle collision safety control system, ensuring that collision information can be stably obtained when collisions occur in different directions of the vehicle.

[0061] In the embodiment of the present application, the second controller is a key component of the airbag system. On the one hand, the second controller is used to receive and process the electrical signal sent by the collision sensor. On the other hand, after the electrical signal is analyzed and processed by the second controller, the second controller makes a judgment on whether to execute safety control and issues relevant instructions based on the judgment result.

[0062] S2, controlling the energy storage unit 400 to supply power to the door control unit 200 through the emergency unlocking switch 500.

[0063] In an embodiment of the present application, the energy storage unit 400 is used to supply power to the gate control unit 200. Specifically, the energy storage unit 400 may be a supercapacitor. As an energy storage element, the supercapacitor has high reliability and stability, and has fast charging and discharging capabilities and a long cycle life. In addition, the energy storage unit 400 may be arranged in the middle of the vehicle, and an anti-collision structure may be added around it to ensure that the backup battery will not be damaged by the collision. In the present application, the energy storage unit 400 may be used as a backup battery for the gate control unit 200. The energy storage unit 400 and the vehicle battery 300 are relatively independent in power supply and do not interfere with each other. When the vehicle collides and the battery is powered off, and the gate control unit 200 cannot be powered normally, the backup battery can continue to power the gate control unit 200.

[0064] In an embodiment of the present application, the emergency unlocking switch 500 is installed on the outside of the vehicle body and is electrically connected between the energy storage unit 400 and the door control unit 200 to control the energy storage unit 400 to supply power to the door control unit 200. In an embodiment of the present application, the emergency unlocking switch 500 is installed on the outside of the vehicle body, for example, it is set on the vehicle rearview mirror, door handle or B-pillar. The emergency unlocking switch 500 can also be set at other positions on the outside of the vehicle body, and those skilled in the art can set it according to actual conditions. In the present application, the emergency unlocking switch 500 is installed on the outside of the vehicle body to facilitate people outside the vehicle to operate the emergency unlocking switch 500 to unlock the door from outside the vehicle.

[0065] S3, when the door control unit 200 receives the collision signal, the door lock is unlocked.

[0066] In the embodiment of the present application, the door control unit 200 includes a first controller and a memory. The first controller is used to receive a collision signal and unlock the door lock according to the power supply of the vehicle battery 300 and / or the energy storage unit 400. The memory is used to store the collision signal. The memory is provided to ensure that after the collision signal is issued, if the door control unit fails to open the door in time, the emergency unlocking switch turns on the backup power supply of the door control unit, and the door control unit can also open the door according to the collision signal.

[0067] For example, the memory may use EEPROM (Electrically Erasable Programmable Read-Only Memory), which allows data to be erased and programmed multiple times without the use of external devices or high-temperature processing. This type of memory belongs to non-volatile memory technology, and the internally stored data can remain intact even when the power is turned off.

[0068] For example, the first controller realizes opening and closing of the door by driving the electric actuator of the door control system. Existing electrically driven door locks include electronic locks and electric door handles, etc. Therefore, depending on the type of electric door lock of the car, the first controller can control the electronic lock by driving the door lock motor, or control the electric door handle by driving the electric door handle motor.

[0069] An embodiment of the present application also provides a vehicle, on which the above-mentioned vehicle emergency unlocking system is provided.

[0070] The embodiments of the present invention disclosed above are only used to help illustrate the present invention. The embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A vehicle emergency unlocking system, characterized in that: include: A collision detection unit, used for obtaining a collision signal; A door control unit, configured to receive the collision signal and unlock the door lock according to the collision signal; A vehicle battery, used to supply power to the door control unit; an energy storage unit, used to supply power to the door control unit, and The emergency unlocking switch is installed on the outside of the vehicle body and is electrically connected between the energy storage unit and the door control unit. It is used to control the energy storage unit to supply power to the door control unit when the vehicle battery cannot supply power to the door control unit.

2. The system according to claim 1, characterized in that The gate control unit comprises: A first controller, configured to receive the collision signal and unlock the door lock according to the collision signal; and A memory is used to store the collision signal.

3. The system according to claim 2, characterized in that The first controller is also used to clear the collision signal stored in the memory after the vehicle is started.

4. The system according to claim 1, characterized in that The collision detection unit comprises: A collision sensor, used for sending the collision signal and the invalid signal; and The second controller is used for receiving the collision signal and the invalid signal, and transmitting the collision signal and the invalid signal to the first controller.

5. The system according to claim 4, characterized in that The second controller is connected to the door control unit via a CAN bus and / or a physical hard line, and the door control unit simultaneously receives the collision signal and the invalid signal via the CAN bus and / or the physical hard line.

6. The system according to claim 5, characterized in that The second controller is also used to control the transmission period of the invalid signal on the CAN bus to be a first transmission period value and the transmission period of the collision signal on the CAN bus to be a second transmission period value, wherein the first transmission period value is greater than the second transmission period value.

7. The system according to claim 5, characterized in that The second controller is also used to control the pulse width modulation duty cycle of the invalid signal on the physical hard line to be a first duty cycle value, and the pulse width modulation duty cycle of the collision signal on the physical hard line to be a second duty cycle value, wherein the first duty cycle value is smaller than the second duty cycle value.

8. The system according to any one of claims 1 to 7, characterized in that: The vehicle battery is also used to supply power to the energy storage unit.

9. A vehicle emergency unlocking method, characterized in that: The vehicle includes a collision detection unit, a door control unit, a vehicle battery, an energy storage unit, and an emergency unlocking switch installed on the outside of the vehicle body. The emergency unlocking method includes: Acquiring a collision signal through the collision detection unit; Controlling the energy storage unit to supply power to the door control unit through the emergency unlocking switch; When the door control unit receives the collision signal, the door lock is unlocked.

10. A vehicle, characterized in that: The vehicle is provided with a vehicle emergency unlocking system as described in any one of claims 1-8.

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