Vehicle door lock control system and control method

Abstract

The present invention discloses a vehicle door lock control system and control method for controlling the operation of a vehicle door lock mechanism, including a main unlocking control circuit and a collision unlocking control circuit; the main unlocking control circuit and the collision unlocking control circuit are connected in parallel to the signal input terminal of the lock mechanism. An unlocking control unit is provided in the collision unlocking control circuit. Due to the provision of the unlocking control unit, the unlocking control unit includes a control module and a detection module. The detection module can directly detect vehicle collision information, and the control module can control the state of the lock mechanism based on the collision information. In particular, when the vehicle is involved in a collision, the detection module can quickly transmit the detected information directly to the control module, and the control module directly controls the unlocking of the lock mechanism. This process is not affected by the connection or disconnection of the airbag controller wiring harness and other wiring harnesses, thereby reducing the risk of the door lock being unable to open in the event of a collision.

Description

Technical Field

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

[0002] With the increasing safety requirements of the China-New Car Assessment Programme (C-NCAP), ensuring timely and accurate door unlocking after a collision has become a key challenge in automotive electrical system development. Currently, most vehicles utilize an airbag controller to sense the collision and then signal the body controller to unlock the door. However, severe collisions, such as those involving an MPDB (Moving Progressive Deformable Barrier) barrier, can cause a power outage in the power supply system, prematurely powering down the body controller and preventing door unlocking.

[0003] Power outages in the power supply system are mainly caused by short circuits and breaks in the wiring harnesses and cables. If the body controller loses power before receiving an airbag unlock request, the door locks cannot be unlocked.

[0004] Existing technical solutions optimize the signal transmission time from the airbag controller to the body controller, allowing the body controller to unlock before the power system loses power. However, in rear-wheel drive electric vehicles, the front cabin has fewer components, and a collision within 50ms can damage the fuse box. The signal transmission time from the airbag controller to the body controller is much longer than this.

[0005] Therefore, there is a risk that the door locks of the car in the prior art cannot be opened when a collision occurs. Summary of the Invention

[0006] The purpose of the present invention is to solve the risk in the prior art that the door locks of a car cannot be opened when a collision occurs.

[0007] To solve the above problems, an embodiment of the present invention discloses a vehicle door lock control system for controlling the operation of a locking mechanism of a vehicle door, comprising a main unlocking control circuit and a collision unlocking control circuit; the main unlocking control circuit and the collision unlocking control circuit are connected in parallel to the signal input end of the locking mechanism; wherein,

[0008] An unlocking control unit is provided in the collision unlocking control circuit, and the unlocking control unit includes a control module, a detection module and a drive control module. The detection module is used to detect the driving status information of the car, and the signal output end of the detection module is connected to the chip pin of the control module to send the driving status information to the control module. The signal output end of the control module is connected to the drive control module, and the drive control module is communicatively connected with the lock mechanism. The control module obtains the collision information of the car according to the received driving status information, and controls the drive control module according to the collision information to control the action of the lock mechanism. When the collision information indicates that the car has collided, the control module controls the lock mechanism to unlock by controlling the drive control module. When the collision information indicates that the car has not collided, the lock mechanism is not unlocked.

[0009] By adopting the above technical solution, the door lock control system of this embodiment is provided with an unlocking control unit, which includes a control module, a detection module and a drive control module. The detection module can directly detect the collision information of the car, and the control module can control the drive control module according to the collision information to change the state of the lock mechanism. Especially when the car collides, the detection module can quickly transmit the detected information directly to the control module, and the control module directly controls the lock mechanism to unlock through the drive control module. This process is not affected by the on-off of the airbag controller wiring harness circuit and the main unlocking control circuit, and can save a lot of time compared to the main unlocking control circuit, thereby reducing the risk of the door lock failing to open when the car collides.

[0010] In addition, the door lock control system in this embodiment has two parallel main unlocking control circuits and collision unlocking control circuits. The on and off of one circuit will not interfere with the other circuit. It can be seen that when the car collides, if the main unlocking control circuit wiring harness fails, the door lock mechanism can be automatically unlocked through the collision unlocking control circuit. This can ensure that the passengers in the car can escape to the outside of the car in time when an accident occurs, providing the passengers with sufficient escape time.

[0011] According to another embodiment of the present invention, a vehicle door lock control system is provided, wherein the main unlocking control circuit includes a battery, a fuse box, and a body controller connected in series, wherein the body controller is communicatively connected to a signal input terminal of the lock mechanism;

[0012] The connection terminals of the unlocking control unit are electrically connected to the connection terminals of the battery.

[0013] By adopting the above technical solution, this embodiment can conveniently power the unlocking control unit by connecting it to the battery, and can conveniently install the unlocking control unit on the car without modifying other wiring harnesses of the car.

[0014] According to a vehicle door lock control system provided in another embodiment of the present invention, the vehicle driving state information is acceleration information of the vehicle, and the detection module is an acceleration sensor.

[0015] According to a vehicle door lock control system provided in another embodiment of the present invention, the unlocking control unit further includes a frame, and the control module, the detection module and the drive control module are all integrated on the frame.

[0016] By adopting the above technical solution, this embodiment provides a frame and integrates the control module, the detection module and the drive control module on the frame.

[0017] According to another embodiment of the present invention, a vehicle door lock control system is provided, wherein the frame is in a U-shaped structure, and has a positive electrode clamp and a negative electrode clamp at both ends thereof, respectively connected to the positive electrode and the negative electrode of the battery, and the positive electrode clamp and the negative electrode clamp are respectively connected to the wiring terminals of the control module through a wiring harness; and

[0018] A plug-in is provided on the frame, and a signal output end of the control module is communicatively connected with the locking mechanism via the plug-in.

[0019] By adopting the above technical solution, this embodiment can make it easier to connect the unlocking control unit with the battery, lock mechanism and other components of the car by arranging the positive electrode clamp, the negative electrode clamp and the plug-in on the frame.

[0020] In addition, in the event of a collision, the frame moves with the battery as a whole, and the control module, detection module and drive control module in the frame are not easily squeezed.

[0021] According to another embodiment of the present invention, a door lock control system is provided.

[0022] The unlocking control unit also includes an integrated circuit; the drive control module is configured as a control switch; wherein the control switch is electrically connected to the integrated circuit, and the control switch is communicatively connected to the lock mechanism, the signal output end of the control module is communicatively connected to the control switch, and the control module controls the lock mechanism to unlock or lock through the control switch according to the collision information.

[0023] With the above technical solution, since the power supply of the drive control module is directly connected to the positive and negative poles of the battery through the positive and negative pole clamps on the frame, the power supply of the control switch during the collision process can be effectively guaranteed.

[0024] According to a vehicle door lock control system provided in another embodiment of the present invention, the unlocking control unit further integrates a basic chip, an external crystal oscillator and a CAN transceiver.

[0025] Another embodiment of the present invention provides a vehicle door lock control method, wherein the vehicle door lock control method applies the vehicle door lock control system of the above structure, and comprises the following steps:

[0026] Step S1: the detection module detects the driving state information of the vehicle during driving and sends the driving state information to the control module;

[0027] Step S2: the control module determines whether the vehicle has collided according to the driving state information;

[0028] If yes, go to step S3;

[0029] If not, proceed to step S4;

[0030] Step S3: the control module controls the lock mechanism to unlock by controlling the drive control module;

[0031] Step S4: the control module controls the locking mechanism not to unlock, and the main unlocking control circuit controls the action of the locking mechanism.

[0032] By adopting the above technical solution, the door lock control method of this embodiment can directly detect the collision information of the car through the detection module, and the control module can control the state of the lock mechanism according to the collision information. Especially when the car collides, the detection module can quickly transmit the detected information directly to the control module, and the control module directly controls the drive control module to control the lock mechanism to unlock. This process is not affected by the connection and disconnection of the airbag controller wiring harness and other wiring harnesses, thereby reducing the risk of the door lock failing to open when the car collides.

[0033] According to another embodiment of the present invention, in the vehicle door lock control method, in step S1, the detection module detects acceleration information of the vehicle during driving and sends the acceleration information to the control module;

[0034] In step S2, the control module determines whether the car has collided based on the acceleration information, wherein:

[0035] When the acceleration information is less than or equal to the acceleration threshold, the control module determines that the vehicle has collided and proceeds to step S3;

[0036] When the acceleration information is greater than the acceleration threshold, the control module determines that the vehicle has not collided and proceeds to step S4.

[0037] According to another embodiment of the present invention, a vehicle door lock control method is provided.

[0038] The step S2 further includes:

[0039] Step S21: When the control module determines that a collision occurs with the vehicle, the control module controls the drive control module to cut off power after a time threshold.

[0040] By adopting the above technical solution, when the control module determines that the car has collided, the control module controls the drive control module to cut off the power after the time threshold, which can not only ensure a certain period of power supply for unlocking, but also avoid fire caused by line short circuit and endanger the safety of passengers.

[0041] Other features and corresponding beneficial effects of the present invention are described in the latter part of the specification, and it should be understood that at least some of the beneficial effects become obvious from the description in the specification of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A control principle diagram of a vehicle door lock control system provided by an embodiment of the present invention;

[0043] Figure 2a A schematic structural diagram of an unlocking control unit in a door lock control system provided by an embodiment of the present invention;

[0044] Figure 2b A schematic structural diagram of the framework of an unlocking control unit in a door lock control system provided by an embodiment of the present invention;

[0045] Figure 3 This is a flow chart of a vehicle door lock control method provided by an embodiment of the present invention.

[0046] Description of reference numerals:

[0047] 100. Main unlocking control circuit;

[0048] 110, body controller; 120, battery; 130, fuse box; 140, airbag controller;

[0049] 200, collision unlocking control circuit;

[0050] 210. Unlock the control unit;

[0051] 211. Control module; 212. Detection module; 213. Frame; 214. Positive electrode chuck; 215. Negative electrode chuck;

[0052] 216. Plug-in; 217. Control switch; 218. Integrated circuit; 219. External crystal oscillator; 220. Basic chip;

[0053] 300. Locking mechanism. DETAILED DESCRIPTION

[0054] The following is an explanation of the embodiments of the present invention by specific specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this embodiment. On the contrary, the purpose of introducing the invention in conjunction with the embodiment is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will contain many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0055] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0056] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0057] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0058] In the description of this embodiment, it should be noted that, unless otherwise specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on specific circumstances.

[0059] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0060] The embodiment of the present invention discloses a vehicle door lock control system, such as Figure 1-2b As shown, the system for controlling the operation of the lock mechanism 300 of the vehicle door includes a main unlocking control circuit 100 and a collision unlocking control circuit 200 ; the main unlocking control circuit 100 and the collision unlocking control circuit 200 are connected in parallel to the signal input end of the lock mechanism 300 .

[0061] Specifically, in this embodiment, an unlocking control unit 210 is provided in the collision unlocking control circuit 200. The unlocking control unit 210 includes a control module 211, a detection module 212 and a drive control module. The detection module 212 is used to detect the driving state information of the vehicle, and the signal output end of the detection module 212 is connected to the chip pin of the control module 211. The control module 211 sends the driving state information to the control module 211. The signal output end of the control module 211 is connected to the drive control module. The chip pins of the drive control module are connected. The drive control module is communicatively connected with the lock mechanism 300. The control module 211 obtains the collision information of the vehicle based on the received driving state information, and controls the drive control module based on the collision information to control the action of the lock mechanism 300. When the collision information indicates that the vehicle has collided, the control module 211 controls the drive control module to unlock the lock mechanism 300. When the collision information indicates that the vehicle has not collided, the lock mechanism 300 is not unlocked.

[0062] More specifically, the door lock control system of this embodiment is provided with an unlocking control unit 210, and the unlocking control unit 210 includes a control module 211 and a detection module 212. The detection module 212 can directly detect the collision information of the car, and the control module 211 can control the state of the lock mechanism 300 according to the collision information. In particular, when the car collides, the detection module 212 can quickly transmit the detected information directly to the control module 211, and the control module 211 directly controls the lock mechanism 300 to unlock. This process is not affected by the on-off of the airbag controller wiring harness circuit and the main unlocking control circuit, and can save a lot of time compared to the main unlocking control circuit, thereby reducing the risk of the door lock failing to open when the car collides.

[0063] More specifically, in this embodiment, the door lock control system in this embodiment has two parallel main unlocking control circuits 100 and a collision unlocking control circuit 200. The on and off of one circuit will not interfere with the other circuit. It can be seen that when the car collides, if the wiring harness of the main unlocking control circuit 100 fails, the door lock mechanism 300 can be automatically unlocked through the collision unlocking control circuit 200. This can ensure that the passengers in the car can escape to the outside of the car in time when an accident occurs, providing the passengers with sufficient escape time.

[0064] Furthermore, Figure 1As shown, the main unlocking control circuit 100 is also connected to the airbag controller.

[0065] It should be understood that in the door lock control system provided in this embodiment, when the car is in normal use, the main unlocking control circuit 100 is used to control the car door lock mechanism 300; when an accident occurs, the collision unlocking control circuit 200 can automatically unlock the door lock mechanism 300.

[0066] According to another embodiment of the present invention, a vehicle door lock control system provides a main unlocking control circuit 100 including a battery 120, a fuse box 130, and a vehicle body controller 110 connected in series, wherein the vehicle body controller 110 is communicatively connected to a signal input terminal of a lock mechanism 300;

[0067] The connection terminals of the unlocking control unit 210 are electrically connected to the connection terminals of the battery 120 .

[0068] Specifically, in this embodiment, the unlocking control unit 210 can be easily powered by connecting it to the battery 120 , and the unlocking control unit 210 can be easily installed on the car without modifying other wiring harnesses of the car.

[0069] More specifically, in this embodiment, the battery 120 and the fuse box 130 may be original components of the car, and this embodiment will not explain their specific structures in detail.

[0070] More specifically, in this embodiment, a fuse box 130 is also provided between the connection terminals of the unlocking control unit 210 and the battery 120 , which can further ensure the power supply safety of the unlocking control unit 210 .

[0071] According to another embodiment of the present invention, the vehicle door lock control system is provided, wherein the vehicle driving state information is acceleration information of the vehicle, and the detection module 212 is an acceleration sensor.

[0072] According to another embodiment of the present invention, the door lock control system provides an unlocking control unit 210 further including a frame 213 , and the control module 211 , the detection module 212 and the drive control module are all integrated on the frame 213 .

[0073] Specifically, this embodiment sets a frame 213 and integrates the control module 211 and the detection module 212 on the frame 213. Through this structural setting, the unlocking control unit 210 can be more integrated, and the unlocking control unit 210 can be more conveniently installed on the car.

[0074] According to a vehicle door lock control system provided in another embodiment of the present invention, the frame 213 has a U-shaped structure, and its two ends respectively have a positive electrode clamp 214 and a negative electrode clamp 215 connected to the positive and negative electrodes of the battery 120, and the positive electrode clamp 214 and the negative electrode clamp 215 are respectively connected to the wiring terminals of the control module 211 through a wiring harness; and a plug-in 216 is provided on the frame 213, and the signal output end of the control module 211 is communicatively connected to the lock mechanism 300 through the plug-in 216.

[0075] Specifically, in this embodiment, by arranging the positive electrode clamp 214 , the negative electrode clamp 215 , and the plug 216 on the frame 213 , the unlocking control unit 210 can be more conveniently connected to the battery 120 , the lock mechanism 300 and other components of the vehicle.

[0076] More specifically, in this embodiment, due to this structure, when a collision occurs, the frame 213 moves as a whole with the battery 120, and the control module 211, the detection module 212 and the drive control module in the frame 213 are not easily affected by squeezing.

[0077] More specifically, in this embodiment, coils should also be provided at the positive electrode clamp 214 and the negative electrode clamp 215 to ensure the power supply safety of the entire unlocking control unit 210. The plug-in 216 can be provided as a socket or other component, which can be specifically set according to actual design and usage requirements, and this embodiment does not limit this.

[0078] According to a vehicle door lock control system provided in another embodiment of the present invention, the unlocking control unit 210 also includes an integrated circuit 218, and the drive control module is configured as a control switch 217; wherein the control switch 217 is electrically connected to the integrated circuit 218, and the control switch 217 is communicatively connected to the lock mechanism 300, the signal output end of the control module 211 is communicatively connected to the control switch 217, and the control module 211 controls the lock mechanism 300 to unlock or lock through the control switch 217 according to the collision information.

[0079] Specifically, by configuring the control switch 217 and the integrated circuit 218 , the unlocking control unit 210 can control the lock mechanism 300 to operate by controlling the switch 217 , and its performance is more stable.

[0080] More specifically, in this embodiment, since the power supply of the control switch 217 is directly connected to the positive and negative poles of the battery 120 through the positive and negative pole clamps 214 and 215 on the frame 213, the power supply of the control switch 217 during the collision process can be effectively guaranteed.

[0081] More specifically, in this embodiment, the control switch 217 can be set to a MOSFET group (Metal-Oxide-Semiconductor Field-Effect Transistor), and the integrated circuit 218 can be set to an SBC board commonly used by those skilled in the art. The specific signals can be set according to actual design and usage requirements, and this embodiment does not require this.

[0082] According to another embodiment of the present invention, the door lock control system provides an unlocking control unit 210 that further includes an integrated basic chip 220 , an external crystal oscillator 219 and a CAN transceiver (not shown in the figure).

[0083] Specifically, the external crystal oscillator 219 can provide a clock signal for the unlocking control unit 210 so that various parts can maintain synchronization.

[0084] Another embodiment of the present invention provides a vehicle door lock control method, which is applied to the vehicle door lock control system in the above embodiment, such as Figure 1-Figure 3 As shown, the following steps are included:

[0085] Step S1: the detection module 212 detects the driving state information of the vehicle during driving and sends the driving state information to the control module 211;

[0086] Step S2: The control module 211 determines whether the vehicle has collided based on the driving state information;

[0087] If yes, go to step S3;

[0088] If not, proceed to step S4;

[0089] Step S3: The control module 211 controls the locking mechanism 300 to unlock;

[0090] Step S4 : the control module 211 controls the lock mechanism 300 not to be unlocked, and the main unlocking control circuit 100 controls the action of the lock mechanism 300 .

[0091] Specifically, the door lock control method of this embodiment can directly detect the collision information of the car through the detection module 212, and the control module 211 can control the state of the lock mechanism 300 according to the collision information. Especially when the car collides, the detection module 212 can quickly transmit the detected information directly to the control module 211, and the control module 211 directly controls the lock mechanism 300 to unlock. This process is not affected by the connection and disconnection of the airbag controller wiring harness and other wiring harnesses, thereby reducing the risk of the door lock failing to open when the car collides.

[0092] According to another embodiment of the present invention, a vehicle door lock control method is provided. In step S1, the detection module 212 detects acceleration information of the vehicle during driving and sends the acceleration information to the control module 211.

[0093] In step S2, the control module 211 determines whether the car has collided based on the acceleration information, wherein:

[0094] When the acceleration information is less than or equal to the acceleration threshold, the control module 211 determines that the vehicle has collided and proceeds to step S3;

[0095] When the acceleration information is greater than the acceleration threshold, the control module 211 determines that the vehicle has not collided and proceeds to step S4.

[0096] Specifically, in this embodiment, the acceleration threshold can be set to -10m / s 2 、-21m / s 2 The specific values should be set according to actual conditions, and this embodiment does not make any sole limitation on this.

[0097] According to another embodiment of the present invention, a vehicle door lock control method is provided.

[0098] When the unlocking control unit 210 further includes a control switch 217 and an integrated circuit 218, step S2 further includes:

[0099] Step S21: When the control module 211 determines that the vehicle has collided, the control module 211 controls the control switch 217 to cut off power after a time threshold.

[0100] Specifically, when the control module 211 determines that the car has collided, the control module 211 controls the control switch 217 to cut off the power after a time threshold, thereby avoiding fire caused by a short circuit and endangering the safety of passengers.

[0101] More specifically, in this embodiment, the time threshold may be set to a value such as 200s, 210.5s, etc., which should be set according to actual conditions and is not limited in this embodiment. In this embodiment, it is preferably set to 200s.

[0102] Furthermore, in this embodiment, the unlocking control unit 210 is integrated with a timer, and the time when the collision occurs is calculated by the timer.

[0103] Furthermore, in this embodiment, the unlocking control unit 210 is also integrated with a signal transceiver, and during use, communication with various components of the vehicle is achieved through the signal transceiver.

[0104] Specifically, the specific model of the timer is not required in this embodiment. The signal transceiver can be set as a CAN transceiver. Its specific model should be determined according to the actual model of the car and the models of each component. This embodiment does not limit this.

[0105] Although the present invention has been illustrated and described with reference to certain preferred embodiments thereof, it should be understood by those skilled in the art that the above description is provided as a further detailed description of the present invention in conjunction with specific embodiments thereof, and that the specific implementation of the present invention is not limited to these descriptions. Those skilled in the art may make various changes in form and details, including simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A door lock control system for controlling the action of the locking mechanism of a vehicle door, comprising a main unlocking control circuit and a collision unlocking control circuit; characterized in that: The main unlocking control circuit and the collision unlocking control circuit are connected in parallel to the signal input end of the lock mechanism; wherein, An unlocking control unit is provided in the collision unlocking control circuit, and the unlocking control unit includes a control module, a detection module and a drive control module. The detection module is used to detect the driving state information of the car, and the signal output end of the detection module is connected to the chip pin of the control module to send the driving state information to the control module. The signal output end of the control module is connected to the drive control module, and the drive control module is communicatively connected with the lock mechanism. The control module obtains the collision information of the car according to the received driving state information, and controls the drive control module according to the collision information to control the action of the lock mechanism. When the collision information indicates that the car has collided, the control module controls the lock mechanism to unlock by controlling the drive control module. When the collision information indicates that the car has not collided, the lock mechanism is not unlocked. The unlocking control unit further includes a frame, and the control module, the detection module, and the drive control module are all integrated on the frame; The frame is in a U-shaped structure, with a positive electrode clamp and a negative electrode clamp connected to the positive and negative electrodes of the battery at both ends, respectively. The positive electrode clamp and the negative electrode clamp are connected to the wiring terminals of the control module respectively; and A plug-in is provided on the frame, and a signal output end of the control module is communicatively connected with the locking mechanism via the plug-in.

2. The vehicle door lock control system according to claim 1, characterized in that: The main unlocking control circuit includes a battery, a fuse box and a body controller connected in series, wherein the body controller is communicatively connected to the signal input end of the lock mechanism; the wiring terminals of the unlocking control unit are electrically connected to the wiring terminals of the battery.

3. The vehicle door lock control system according to claim 1, wherein: The driving state information of the automobile is acceleration information of the automobile, and the detection module is an acceleration sensor.

4. The vehicle door lock control system according to any one of claims 1 to 3, characterized in that: The unlocking control unit also includes an integrated circuit; the drive control module is configured as a control switch; wherein the control switch is electrically connected to the integrated circuit, and the control switch is communicatively connected to the lock mechanism, the signal output end of the control module is communicatively connected to the control switch, and the control module controls the lock mechanism to unlock or lock through the control switch according to the collision information.

5. The vehicle door lock control system according to claim 4, characterized in that: The unlocking control unit also integrates a basic chip, an external crystal oscillator and a CAN transceiver.

6. A vehicle door lock control method, characterized in that: The vehicle door lock control method is applied to the vehicle door lock control system according to any one of claims 1 to 5, comprising the following steps: Step S1: the detection module detects the driving state information of the vehicle during driving and sends the driving state information to the control module; Step S2: the control module determines whether the vehicle has collided according to the driving state information; If yes, go to step S3; If not, proceed to step S4; Step S3: the control module controls the locking mechanism to unlock; Step S4: the control module controls the locking mechanism not to unlock, and the main unlocking control circuit controls the action of the locking mechanism.

7. The vehicle door lock control method according to claim 6, wherein: In step S1, the detection module detects acceleration information of the vehicle during driving and sends the acceleration information to the control module; In step S2, the control module determines whether the car has collided based on the acceleration information, wherein: When the acceleration information is less than or equal to the acceleration threshold, the control module determines that the vehicle has collided and proceeds to step S3; When the acceleration information is greater than the acceleration threshold, the control module determines that the vehicle has not collided and proceeds to step S4.

8. The vehicle door lock control method according to claim 7, wherein: The step S2 further includes: Step S21: When the control module determines that a collision occurs with the vehicle, the control module controls the drive control module to cut off power after a time threshold.

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