Vehicle door lock control system and method and vehicle

Abstract

The invention discloses a vehicle door lock control system and method and a vehicle, and relates to the technical field of vehicle safety, and the system comprises a VIU, a CPM, a switching circuit, a door lock motor, a main power supply and a standby power supply; the VIU is connected with the door lock motor through the switching circuit, and the CPM is connected with the door lock motor; under the condition that the main power supply is not powered off, the main power supply is used for charging the standby power supply and supplying power to the VIU and the CPM, the CPM is used for controlling the switching circuit to be switched on, the VIU is used for sending a first door lock control signal to the door lock motor through the switching circuit, and the door lock motor is used for controlling a vehicle door to be unlocked according to the first door lock control signal; and under the condition that the main power supply cannot supply power, the standby power supply supplies power to the CPM, the CPM is used for controlling the switching circuit to be switched off and sending a second door lock control signal to the door lock motor, and the door lock motor is used for controlling the vehicle door to be unlocked according to the second door lock control signal. The system can reduce the safety risk that the vehicle door cannot be unlocked after the vehicle accident.

Description

Technical Field

[0001] The present application relates to the field of vehicle safety technology, and in particular to a door lock control system, method and vehicle. Background Art

[0002] In order to make new energy vehicles more beautiful, the door handles of new energy vehicles are designed to be hidden door handles. However, when a serious accident occurs in the vehicle, the hidden door handles may not pop out and the doors may not be unlocked, which makes it impossible for people in the vehicle to leave the accident vehicle in a short time.

[0003] like Figure 1 As shown in the figure, this is a schematic diagram of a redundant unlocking control circuit. The redundant unlocking module and the control circuit are in parallel. When there is no accident with the vehicle, the redundant unlocking module does not interfere with the operation of the control circuit, and the power supply charges the supercapacitor of the redundant unlocking module. In the event of an accident with the vehicle, if the line between the control circuit and the door lock is cut off, the control circuit cannot successfully unlock the door, but the redundant unlocking module can still ensure that the door is unlocked.

[0004] However, the copper wire of the cut line is exposed, and the exposed copper wire is short-circuited after being connected to the frame, resulting in the inability of the unlocking signal of the redundant unlocking module to be transmitted to the door lock motor, or the unlocking signal issues a locking command to the door lock through the locking circuit. At this time, even if the redundant unlocking module can work normally, it cannot unlock the door normally.

[0005] Therefore, the current redundant door unlocking structure still poses safety risks. Summary of the invention

[0006] The present application provides a door lock control system, method and vehicle, which can reduce the safety risk of doors being unable to unlock after a vehicle accident.

[0007] In order to achieve the above objectives, this application adopts the following technical solutions: In a first aspect, the present application provides a vehicle door lock control system, the control system comprising: a vehicle information unit VIU, a security door control unit CPM, a switch circuit, a door lock motor, a main power supply and a backup power supply; The VIU is connected to the door lock motor through the switch circuit, and the CPM is connected to the door lock motor; In the case where the main power supply is not cut off, the main power supply is used to charge the backup power supply and to supply power to the VIU and the CPM, the CPM is used to control the switching circuit to be turned on, the VIU is used to send a first door lock control signal to the door lock motor through the switching circuit, and the door lock motor is used to control the door unlocking according to the first door lock control signal; When the main power supply fails to supply power, the backup power supply supplies power to the CPM, and the CPM is used to control the switch circuit to disconnect and send a second door lock control signal to the door lock motor. The door lock motor is used to control the door unlocking according to the second door lock control signal.

[0008] In some possible implementations, the control system further includes: an inertial measurement unit IMU and an airbag system SRS; The CPM is further used to obtain a first collision result measured by the IMU, and send the first collision result to the VIU; The VIU is further configured to obtain a second collision result measured by the SRS, and determine a collision condition of the vehicle according to the first collision result and the second collision result; The VIU is specifically configured to send a first door lock control signal to the door lock motor through the switch circuit when the collision condition of the vehicle indicates that the vehicle has collided.

[0009] In some possible implementations, the CPM is further used to determine a connection status with the VIU; The CPM is specifically used to control the switch circuit to disconnect and send a second door lock control signal to the door lock motor when the connection status between the CPM and the VIU indicates that the connection is not connected.

[0010] In some possible implementations, the CPM is specifically used to detect the pulse signal sent by the VIU at every preset period to obtain a detection result. If the detection result indicates that the pulse signal sent by the VIU is not received, then the connection status between the CPM and the VIU is determined to be disconnected; if the detection result indicates that the pulse signal sent by the VIU is received, then the connection status between the CPM and the VIU is determined to be connected.

[0011] In some possible implementations, the switching circuit includes a switching tube and a diode connected in parallel; the anode of the diode is connected to the door lock motor, and the cathode of the diode is connected to the VIU; the first end of the switching tube is connected to the door lock motor, the second end of the switching tube is connected to the VIU, and the control end of the switching tube is connected to the CPM.

[0012] In a second aspect, the present application provides a vehicle, the vehicle comprising: a vehicle information unit VIU, a security door control unit CPM, a switch circuit, a door lock motor, a main power supply and a backup power supply; In some possible implementations, the control system further includes: an inertial measurement unit IMU and an airbag system SRS; The CPM is further used to obtain a first collision result measured by the IMU, and send the first collision result to the VIU; The VIU is further configured to obtain a second collision result measured by the SRS, and determine a collision condition of the vehicle according to the first collision result and the second collision result; The VIU is specifically configured to send a first door lock control signal to the door lock motor through the switch circuit when the collision condition of the vehicle indicates that the vehicle has collided.

[0013] In some possible implementations, the CPM is further used to determine a connection status with the VIU; The CPM is specifically used to control the switch circuit to disconnect and send a second door lock control signal to the door lock motor when the connection status between the CPM and the VIU indicates that the connection is not connected.

[0014] In some possible implementations, the CPM is specifically used to detect the pulse signal sent by the VIU at every preset period to obtain a detection result. If the detection result indicates that the pulse signal sent by the VIU is not received, then the connection status between the CPM and the VIU is determined to be disconnected; if the detection result indicates that the pulse signal sent by the VIU is received, then the connection status between the CPM and the VIU is determined to be connected.

[0015] In some possible implementations, the switching circuit includes a switching tube and a diode connected in parallel; the anode of the diode is connected to the door lock motor, and the cathode of the diode is connected to the VIU; the first end of the switching tube is connected to the door lock motor, the second end of the switching tube is connected to the VIU, and the control end of the switching tube is connected to the CPM.

[0016] In a third aspect, the present application provides a vehicle door lock control method, which is applied to a vehicle information unit VIU and a security door control unit CPM, wherein the VIU is connected to a door lock motor through a switch circuit, and the CPM is connected to a door lock motor, and the method comprises: When the main power supply is not cut off, the main power supply is used to charge the backup power supply and to supply power to the VIU and the CPM. The CPM controls the switch circuit to be turned on, and the VIU sends a first door lock control signal to the door lock motor through the switch circuit, so that the door lock motor controls the door to be unlocked according to the first door lock control signal. When the main power supply fails to supply power, the backup power supply supplies power to the CPM, and the CPM controls the switch circuit to disconnect and sends a second door lock control signal to the door lock motor, so that the door lock motor controls the door to unlock according to the second door lock control signal.

[0017] In a fourth aspect, the present application provides a computing device, including a memory and a processor; One or more computer programs are stored in the memory, and the one or more computer programs include instructions; when the instructions are executed by the processor, the computing device executes the method described in the third aspect.

[0018] In a fifth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium is used to store a computer program, and the computer program is used to execute the method as described in the third aspect.

[0019] It can be seen from the above technical solution that the present application has at least the following beneficial effects: The present application provides a control system for a vehicle door lock, which includes a vehicle information unit VIU, a security door control unit CPM, a switch circuit, a door lock motor, a main power supply and a backup power supply, wherein the VIU is connected to the door lock motor through the switch circuit, and the CPM is connected to the door lock motor. When the main power supply is not cut off, the main power supply charges the backup power supply and supplies power to the VIU and CPM. The CPM is used to control the conduction of the switch circuit, and the VIU is used to send a first door lock control signal to the door lock motor through the switch circuit. After the door lock motor receives the first door lock control signal, it controls the door to unlock. In the case of an accident or other failure of the vehicle causing the main power supply to be unable to supply power, the VIU and CPM will not work. Then, the door cannot be unlocked. At this time, the backup power supply can supply power to the CPM. The CPM first controls the switch circuit to be disconnected. Even if the control signal line of the VIU is short-circuited and mistakenly sends a signal for locking the door, the door lock motor will not receive the signal, thereby reducing the situation of mistaken locking. Then, the CPM sends a second door lock control signal to the door lock motor, and the door lock motor controls the door to unlock according to the second door lock control information. It can be seen that the control system can also control the door unlocking after a vehicle accident causes VIU abnormality, thereby improving the safety of vehicles with hidden door handles.

[0020] It should be understood that the description of technical features, technical solutions, beneficial effects or similar language in this application does not imply that all features and advantages can be realized in any single embodiment. On the contrary, it is understood that the description of features or beneficial effects means that specific technical features, technical solutions or beneficial effects are included in at least one embodiment. Therefore, the description of technical features, technical solutions or beneficial effects in this specification does not necessarily refer to the same embodiment. Furthermore, the technical features, technical solutions and beneficial effects described in the present embodiment can also be combined in any appropriate manner. Those skilled in the art will understand that the embodiment can be realized without one or more specific technical features, technical solutions or beneficial effects of a specific embodiment. In other embodiments, additional technical features and beneficial effects can also be identified in a specific embodiment that does not embody all embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a control circuit provided in an embodiment of the present application; Figure 2 A schematic diagram of a door lock control system provided in an embodiment of the present application; Figure 3 A schematic diagram of a switch circuit provided in an embodiment of the present application; Figure 4 A flow chart of a method for controlling a vehicle door lock provided in an embodiment of the present application; Figure 5 A schematic diagram of a computing device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0022] The terms "first", "second", "third", etc. in the specification of this application and the accompanying drawings are used to distinguish different objects rather than to limit a specific order.

[0023] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0024] In order to make the description of the following embodiments clear and concise, a brief introduction to the related technology is first given: See also Figure 1 In the event of a vehicle accident, the signal line between the control circuit and the door lock motor may be cut off due to the accident, thereby overlapping and short-circuiting. In the event of a short circuit, the door locking signal may be mistakenly triggered, resulting in the inability to open the door, increasing the safety risk of people in the car.

[0025] In view of this, the embodiment of the present application provides a door lock control system, such as Figure 2 As shown in the figure, it is a schematic diagram of a door lock control system provided by an embodiment of the present application, and the door lock control system includes: a vehicle information unit VIU201, a safety door control unit CPM 202, a switch circuit 203, a door lock motor 204, a main power supply 205 and a backup power supply 206. Among them, the full name of the safety door control unit is Crash Power Moudle. CPM 202 includes a motor control unit MCU and a backup power supply 206.

[0026] The main power supply 205 is connected to the backup power supply 206. When the main power supply 205 is not powered off, the main power supply 205 charges the backup power supply 206, and the main power supply 205 also supplies power to the VIU 201 and the CPM 205. In this way, when the main power supply 205 fails or the line between the main power supply 205 and the VIU 201 or the CPM 202 is disconnected, the backup power supply 206 can supply power to the VIU 201 and the CPM 202.

[0027] Among them, a first voltage conversion circuit (not shown in the figure) can also be arranged between the main power supply 205 and the backup power supply 206, and a second voltage conversion circuit (not shown in the figure) can also be connected in series at the output end of the backup power supply 206, for example, the second voltage conversion circuit is arranged between the backup power supply 206 and the CPM 202, or between the backup power supply 206 and the VIU 201. When the main power supply is normal, the first voltage conversion circuit adjusts the voltage output by the main power supply 205 and charges the backup power supply 206, and the second voltage conversion circuit is in an open circuit state and does not supply power to the subsequent circuit; when the main power supply 205 is abnormal (including the case of a circuit break between the main power supply 205 and the subsequent circuit), the first transformer is in an open circuit state, and the second transformer adjusts the voltage output by the backup power supply 206 and outputs it to the subsequent circuit, such as the VIU 201 and the CPM 202.

[0028] When the main power supply 205 is not cut off, the CPM 202 controls the switch circuit 203 to be turned on, and the VIU 201 sends a first door lock control signal to the door lock motor 204 through the switch circuit 203. After receiving the first door lock control signal, the door lock motor 204 responds to the first door lock control signal and controls the vehicle door to unlock.

[0029] In the case where the main power supply 205 cannot supply power (for example, the line between the main power supply 205 and the VIU 201 is disconnected, and the line between the main power supply 205 and the CPM 202 is disconnected), at this time, the backup power supply 206 can supply power to the CPM 202, and the CPM 202 controls the switch circuit 203 to be disconnected, and sends a second door lock control signal to the door lock motor 204. After receiving the second door lock control signal, the door lock motor 204 can control the door to be unlocked. The CPM 202 controls the switch circuit 203 to be disconnected, so that the VIU 201 will lose the control right over the door lock motor 204. Therefore, even if there is a fault in the line between the VIU 201 and the door lock motor 204 (for example, the signal line for unlocking the door is short-circuited with the signal line for locking the door), the door lock motor 204 will not receive the signal sent by the VIU 201 by mistake, and will not lock the door by mistake, thereby improving the safety of the passengers in the vehicle in the event of an accident.

[0030] Among them, the above embodiment is introduced by taking a door lock motor 204 as an example. When the vehicle includes multiple doors, the control logic of the door lock motor 204 corresponding to other doors is similar to the above embodiment. In some embodiments, the door lock motor 204 can also be replaced by a child lock motor, or the door lock motor 204 and the child lock can coexist, and the control logic of the child lock motor is the same as the control logic of the door lock motor 204.

[0031] In some embodiments, the control system further includes an inertial measurement unit IMU and an airbag system SRS, and CPM202 may also obtain a first collision result measured by the IMU, and send the first collision result to VIU 201. VIU 201 may also obtain a second collision result measured by the SRS, and then determine the collision condition of the vehicle based on the second collision result and the first collision result obtained from CPM 202. Exemplarily, when both the first collision result and the second collision result indicate that the vehicle has collided, VIU 201 determines that the collision condition of the vehicle is that the vehicle has collided, and when the first collision result or the second collision result indicates that the vehicle has not collided, VIU 201 determines that the collision condition of the vehicle is that the vehicle has not collided.

[0032] When the collision condition of the vehicle indicates that the vehicle has collided, the VIU 201 sends a first door lock control signal to the door lock motor through the switch circuit 203, thereby automatically controlling the door to be unlocked. After the door is unlocked, the hidden door handle of the vehicle will automatically pop out, thereby facilitating the user outside the vehicle to provide emergency assistance to the passengers in the vehicle.

[0033] In some embodiments, CPM 202 can also determine the connection status between CPM 202 and VIU 201. When it is determined that the connection status between CPM 202 and VIU 201 indicates disconnection, the switch circuit 203 is controlled to disconnect, that is, the control loop of the VIU is disconnected, and a second door lock control signal is sent to the door lock motor 204.

[0034] Among them, when the connection status between CPM 202 and VIU 201 indicates that they are not connected, it indicates that VIU 201 may not be able to work normally. At this time, CPM 202 takes over the control of VIU 201 over the door lock motor 204. Since VIU 201 may not be able to work normally, in order to avoid VIU 201 from miscontrolling the door lock motor, CPM 202 controls the switch circuit 203 to disconnect, thereby cutting off VIU 201's control over the door lock motor 204.

[0035] In some embodiments, CPM 202 may detect the pulse signal sent by VIU 201 at every preset period to obtain a detection result. Exemplarily, VIU 201 may send a pulse signal to CPM 202 via the CAN bus. The preset period may be 100 ms or 10 ms, which is not limited in the present application. If the detection result indicates that the pulse signal sent by VIU 201 is not received, the connection state between CPM 202 and VIU 201 is determined to be unconnected. If the detection result indicates that the pulse signal sent by VIU is received, the connection state between CPM 202 and VIU 201 is determined to be connected.

[0036] like Figure 3 As shown, the figure is a schematic diagram of a switching circuit provided in an embodiment of the present application, and the switching circuit 203 may include a switching tube 301 and a diode 302 connected in parallel, wherein the anode of the diode 302 is connected to the door lock motor 204, the cathode of the diode 302 is connected to the VIU 201, the first end of the switching tube 301 is connected to the door lock motor 204, the second end of the switching tube 301 is connected to the VIU, and the control end of the switching tube 301 is connected to the CPM 202.

[0037] The switch tube 301 may be a MOS tube, such as an NMOS tube, a PMOS tube, etc. In other embodiments, the switch tube 301 may also be a component with a switching function, such as a relay.

[0038] Based on the above description, the present application provides a control system for a vehicle door lock, which includes a vehicle information unit VIU, a security door control unit CPM, a switch circuit, a door lock motor, a main power supply and a backup power supply, wherein the VIU is connected to the door lock motor through the switch circuit, and the CPM is connected to the door lock motor. When the main power supply is not powered off, the main power supply charges the backup power supply and supplies power to the VIU and CPM. The CPM is used to control the conduction of the switch circuit, and the VIU is used to send a first door lock control signal to the door lock motor through the switch circuit. After the door lock motor receives the first door lock control signal, it controls the door to unlock. When the vehicle has an accident or other failures that cause the main power supply to be unable to supply power, the VIU and CPM will not work. Then, the door cannot be unlocked. At this time, the backup power supply can supply power to the CPM. The CPM first controls the switch circuit to disconnect. Even if the control signal line of the VIU is short-circuited and mistakenly sends a signal for locking the door, the door lock motor will not receive the signal, thereby reducing the situation of mistaken locking. Then, the CPM sends a second door lock control signal to the door lock motor, and the door lock motor controls the door to unlock according to the second door lock control information. It can be seen that the control system can also control the door unlocking after a vehicle accident causes VIU abnormality, thereby improving the safety of vehicles with hidden door handles.

[0039] The embodiment of the present application further provides a vehicle, the vehicle comprising: a vehicle information unit VIU, a security door control unit CPM, a switch circuit, a door lock motor, a main power supply and a backup power supply; In some possible implementations, the control system further includes: an inertial measurement unit IMU and an airbag system SRS; The CPM is further used to obtain a first collision result measured by the IMU, and send the first collision result to the VIU; The VIU is further configured to obtain a second collision result measured by the SRS, and determine a collision condition of the vehicle according to the first collision result and the second collision result; The VIU is specifically configured to send a first door lock control signal to the door lock motor through the switch circuit when the collision condition of the vehicle indicates that the vehicle has collided.

[0040] In some possible implementations, the CPM is further used to determine a connection status with the VIU; The CPM is specifically used to control the switch circuit to disconnect and send a second door lock control signal to the door lock motor when the connection status between the CPM and the VIU indicates that the connection is not connected.

[0041] In some possible implementations, the CPM is specifically used to detect the pulse signal sent by the VIU at every preset period to obtain a detection result. If the detection result indicates that the pulse signal sent by the VIU is not received, then the connection status between the CPM and the VIU is determined to be disconnected; if the detection result indicates that the pulse signal sent by the VIU is received, then the connection status between the CPM and the VIU is determined to be connected.

[0042] In some possible implementations, the switching circuit includes a switching tube and a diode connected in parallel; the anode of the diode is connected to the door lock motor, and the cathode of the diode is connected to the VIU; the first end of the switching tube is connected to the door lock motor, the second end of the switching tube is connected to the VIU, and the control end of the switching tube is connected to the CPM.

[0043] The vehicle provided in the embodiment of the present application is similar to the control system provided in the embodiment of the present application, and will not be repeated here.

[0044] The present application also provides a method for controlling a door lock. Figure 4 As shown, this figure is a flow chart of a method for controlling a vehicle door lock provided by an embodiment of the present application. The method is applied to a vehicle information unit VIU and a security door control unit CPM. The VIU is connected to a door lock motor through a switch circuit, and the CPM is connected to a door lock motor. The method includes: S401. When the main power supply is not cut off, the main power supply is used to charge the backup power supply and to supply power to the VIU and the CPM. The CPM controls the switching circuit to be turned on. The VIU sends a first door lock control signal to the door lock motor through the switching circuit, so that the door lock motor controls the door unlocking according to the first door lock control signal.

[0045] S402. When the main power supply fails to supply power, the backup power supply supplies power to the CPM, and the CPM controls the switch circuit to disconnect and sends a second door lock control signal to the door lock motor, so that the door lock motor controls the vehicle door to unlock according to the second door lock control signal.

[0046] There is no execution order for S401 and S402.

[0047] The present application also provides a computing device. Figure 5 As shown, the figure is a schematic diagram of a computing device provided in an embodiment of the present application, and the computing device 500 includes a bus 501, a processor 502, a communication interface 503 and a memory 504. The processor 502, the memory 504 and the communication interface 503 communicate with each other through the bus 501.

[0048] The bus 501 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 5 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0049] The processor 502 may be any one or more of a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor (MP), or a digital signal processor (DSP).

[0050] The communication interface 503 is used for communicating with the outside.

[0051] The memory 504 may include a volatile memory, such as a random access memory (RAM). The memory 504 may also include a non-volatile memory, such as a read-only memory (ROM), a flash memory, a hard disk drive (HDD), or a solid state drive (SSD).

[0052] The memory 504 stores executable codes, and the processor 502 executes the executable codes to perform the aforementioned vehicle door lock control method.

[0053] The embodiment of the present application also provides a computer-readable storage medium. The computer-readable storage medium can be any available medium that can be stored by a computing device or a data storage device such as a data center containing one or more available media. The available medium can be a magnetic medium (such as a floppy disk, a hard disk, a tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid-state hard disk). The computer-readable storage medium includes instructions that instruct the computing device to execute the above-mentioned vehicle door lock control method.

[0054] The embodiment of the present application further provides a computer program product, which includes one or more computer instructions. When the computer instructions are loaded and executed on a computing device, the process or function described in the embodiment of the present application is generated in whole or in part.

[0055] The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer or data center to another website, computer or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) means.

[0056] When the computer program product is executed by a computer, the computer executes any of the aforementioned methods for controlling a vehicle door lock. The computer program product may be a software installation package, and when any of the aforementioned methods for controlling a vehicle door lock is required, the computer program product may be downloaded and executed on a computer.

[0057] The descriptions of the processes or structures corresponding to the above-mentioned figures have different emphases. For parts that are not described in detail in a certain process or structure, please refer to the relevant descriptions of other processes or structures.

[0058] The above description is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application.

Claims

1. A vehicle door lock control system, characterized in that: The control system includes: a vehicle information unit VIU, a security door control unit CPM, a switch circuit, a door lock motor, a main power supply and a backup power supply; The VIU is connected to the door lock motor through the switch circuit, and the CPM is connected to the door lock motor; In the case where the main power supply is not cut off, the main power supply is used to charge the backup power supply and to supply power to the VIU and the CPM, the CPM is used to control the switching circuit to be turned on, the VIU is used to send a first door lock control signal to the door lock motor through the switching circuit, and the door lock motor is used to control the door unlocking according to the first door lock control signal; When the main power supply fails to supply power, the backup power supply supplies power to the CPM, and the CPM is used to control the switch circuit to disconnect and send a second door lock control signal to the door lock motor. The door lock motor is used to control the door unlocking according to the second door lock control signal.

2. The control system according to claim 1, characterized in that: The control system also includes: an inertial measurement unit IMU and an airbag system SRS; The CPM is further used to obtain a first collision result measured by the IMU, and send the first collision result to the VIU; The VIU is further configured to obtain a second collision result measured by the SRS, and determine a collision condition of the vehicle according to the first collision result and the second collision result; The VIU is specifically configured to send a first door lock control signal to the door lock motor through the switch circuit when the collision condition of the vehicle indicates that the vehicle has collided.

3. The control system according to claim 2, characterized in that: The CPM is further used to determine the connection status with the VIU; The CPM is specifically used to control the switch circuit to disconnect and send a second door lock control signal to the door lock motor when the connection status between the CPM and the VIU indicates that the connection is not connected.

4. The control system according to claim 3, characterized in that: The CPM is specifically used to detect the pulse signal sent by the VIU at every preset period to obtain a detection result. If the detection result indicates that the pulse signal sent by the VIU is not received, it is determined that the connection state between the CPM and the VIU is not connected; if the detection result indicates that the pulse signal sent by the VIU is received, it is determined that the connection state between the CPM and the VIU is connected.

5. The control system according to claim 1, characterized in that: The switching circuit includes a switching tube and a diode connected in parallel; the anode of the diode is connected to the door lock motor, and the cathode of the diode is connected to the VIU; the first end of the switching tube is connected to the door lock motor, the second end of the switching tube is connected to the VIU, and the control end of the switching tube is connected to the CPM.

6. A vehicle, characterized in that: include: Vehicle information unit VIU, security door control unit CPM, switch circuit, door lock motor, main power supply and backup power supply; The VIU is connected to the door lock motor through the switch circuit, and the CPM is connected to the door lock motor; In the case where the main power supply is not cut off, the main power supply is used to charge the backup power supply and to supply power to the VIU and the CPM, the CPM is used to control the switching circuit to be turned on, the VIU is used to send a first door lock control signal to the door lock motor through the switching circuit, and the door lock motor is used to control the door unlocking according to the first door lock control signal; When the main power supply fails to supply power, the backup power supply supplies power to the CPM, and the CPM is used to control the switch circuit to disconnect and send a second door lock control signal to the door lock motor. The door lock motor is used to control the door unlocking according to the second door lock control signal.

7. The vehicle according to claim 6, characterized in that The vehicle also includes: an inertial measurement unit IMU and an airbag system SRS; The CPM is further used to obtain a first collision result measured by the IMU, and send the first collision result to the VIU; The VIU is further configured to obtain a second collision result measured by the SRS, and determine a collision condition of the vehicle according to the first collision result and the second collision result; The VIU is specifically configured to send a first door lock control signal to the door lock motor through the switch circuit when the collision condition of the vehicle indicates that the vehicle has collided.

8. The vehicle according to claim 7, characterized in that The CPM is further used to determine the connection status with the VIU; The CPM is specifically used to control the switch circuit to disconnect and send a second door lock control signal to the door lock motor when the connection status between the CPM and the VIU indicates that the connection is not connected.

9. The vehicle according to claim 8, characterized in that The CPM is specifically used to detect the pulse signal sent by the VIU at every preset period to obtain a detection result. If the detection result indicates that the pulse signal sent by the VIU is not received, it is determined that the connection state between the CPM and the VIU is not connected; if the detection result indicates that the pulse signal sent by the VIU is received, it is determined that the connection state between the CPM and the VIU is connected.

10. A vehicle door lock control method, characterized in that: Applied to a vehicle information unit VIU and a security door control unit CPM, the VIU is connected to a door lock motor through a switch circuit, and the CPM is connected to a door lock motor. The method includes: When the main power supply is not cut off, the main power supply is used to charge the backup power supply and to supply power to the VIU and the CPM. The CPM controls the switch circuit to be turned on, and the VIU sends a first door lock control signal to the door lock motor through the switch circuit, so that the door lock motor controls the door to be unlocked according to the first door lock control signal. When the main power supply fails to supply power, the backup power supply supplies power to the CPM, and the CPM controls the switch circuit to disconnect and sends a second door lock control signal to the door lock motor, so that the door lock motor controls the door to unlock according to the second door lock control signal.

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