CN116160992A - Door lock control system and control method - Google Patents

Door lock control system and control method Download PDF

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Publication number
CN116160992A
CN116160992A CN202111409729.0A CN202111409729A CN116160992A CN 116160992 A CN116160992 A CN 116160992A CN 202111409729 A CN202111409729 A CN 202111409729A CN 116160992 A CN116160992 A CN 116160992A
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CN
China
Prior art keywords
control module
control
automobile
lock mechanism
door lock
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Pending
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CN202111409729.0A
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Chinese (zh)
Inventor
权高亮
吴文健
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SAIC Motor Corp Ltd
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SAIC Motor Corp Ltd
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Publication date
Application filed by SAIC Motor Corp Ltd filed Critical SAIC Motor Corp Ltd
Priority to CN202111409729.0A priority Critical patent/CN116160992A/en
Publication of CN116160992A publication Critical patent/CN116160992A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20Means to switch the anti-theft system on or off
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B2047/0048Circuits, feeding, monitoring

Abstract

The invention discloses a door lock control system and a control method, which are used for controlling the action of a lock mechanism of an automobile door, and comprise a main unlocking control loop and a collision unlocking control loop; the main unlocking control loop and the collision unlocking control loop are connected in parallel with the signal input end of the lock mechanism. The collision unlocking control loop is provided with the unlocking control unit, and the unlocking control unit comprises a control module and a detection module, the detection module can directly detect collision information of the automobile, the control module can control the state of the lock mechanism according to the collision information, especially when the automobile collides, the detection module can directly transmit the detected information to the control module, the control module directly controls the lock mechanism to unlock, the process is not influenced by the on-off of the harness of the air bag controller and other harnesses, and the risk that the door lock cannot be opened when the automobile collides can be further reduced.

Description

Door lock control system and control method
Technical Field
The invention relates to the technical field of automobiles, in particular to a door lock control system and a door lock control method.
Background
With the continuous improvement of the safety requirements of an automobile C-NCAP (China New Car evaluation protocol) on the automobile, whether the automobile door can be unlocked timely and accurately after the automobile collides becomes a difficult problem of the development of an automobile electrical system. At present, an automobile mostly adopts an airbag controller to sense collision information, and a vehicle body controller is requested to drive a door lock system to unlock through signals. However, if the collision is serious, for example, under the working condition of MPDB (Moving Progressive Deformable Barrier ), the power supply system is powered off, so that the vehicle body controller and the like are powered off in advance, and the unlocking cannot be completed normally.
The power outage of the power supply system is mainly caused by short circuits and disconnection of the wire harness and the cable. If the vehicle body controller fails to power off before the unlocking request of the airbag is not received, the door lock cannot be driven to unlock.
In the prior art, the vehicle body controller can be unlocked before the power supply system is powered off by optimizing the time for signal transmission from the airbag controller to the vehicle body controller. But for a rear-drive electric vehicle, the front cabin parts are fewer, and the fuse box can be damaged in 50ms when the front cabin parts collide. The time for the airbag controller to body controller signal transfer is much longer.
Therefore, the prior art automobiles have a risk that the door lock cannot be opened in the event of a collision.
Disclosure of Invention
The invention aims to solve the problem that the door lock cannot be opened when an automobile collides in the prior art.
In order to solve the above problems, an embodiment of the present invention discloses a door lock control system for controlling actions of a lock mechanism of an automobile door, including a main unlock control loop and a collision unlock control loop; the main unlocking control loop and the collision unlocking control loop are connected in parallel with the signal input end of the lock mechanism; wherein, the liquid crystal display device comprises a liquid crystal display device,
the automobile lock comprises a collision unlocking control loop, and is characterized in that an unlocking control unit is arranged in the collision unlocking control loop and comprises a control module, a detection module and a driving control module, wherein the detection module is used for detecting running state information of an automobile, a signal output end of the detection module is connected with a chip pin of the control module so as to send the running state information to the control module, a signal output end of the control module is connected with the driving control module, the driving control module is in communication connection with the lock mechanism, the control module obtains collision information of the automobile according to the received running state information and controls the driving control module to control the action of the lock mechanism, and when the collision information is that the automobile collides, the control module controls the lock mechanism to unlock through controlling the driving control module, and when the collision information is that the automobile does not collide, the lock mechanism does not unlock.
By adopting the technical scheme, the door lock control system of the embodiment comprises an unlocking control unit, wherein the unlocking control unit comprises a control module, a detection module and a driving control module, the detection module can directly detect collision information of an automobile, the driving control module can be controlled by the control module according to the collision information to change the state of a lock mechanism, especially when the automobile collides, the detected information can be directly transmitted to the control module by the detection module, the control module directly controls the unlocking of the lock mechanism through the driving control module, the unlocking control unit is not influenced by the on-off of a harness loop and a main unlocking control loop of the air bag controller, and the time is greatly saved compared with the main unlocking control loop, so that the risk that a door lock cannot be opened when the automobile collides can be reduced.
In addition, the door lock control system in this embodiment has two parallelly connected main unlocking control loops and collision unlocking control loop, and the break-make of one of them return circuit can not cause the interference to another return circuit, and it can be known from this, this kind of door lock control system that this embodiment provided when the car bumps, if main unlocking control loop pencil breaks down, the automatic unlocking of door lock mechanism is realized to accessible collision unlocking control loop, so can guarantee that the passenger in the car can in time escape outside the car when unexpected accident takes place, provide sufficient escape time for the passenger.
According to another embodiment of the invention, the main unlocking control loop comprises a storage battery, a fuse box and a vehicle body controller which are sequentially connected in series, wherein the vehicle body controller is in communication connection with a signal input end of the locking mechanism;
the wiring terminal of the unlocking control unit is electrically connected to the wiring terminal of the storage battery.
By adopting the technical scheme, the unlocking control unit can be conveniently powered by connecting the unlocking control unit with the storage battery, and the unlocking control unit can be conveniently installed on the automobile without improving other wire harnesses of the automobile.
According to the door lock control system provided by the other embodiment of the invention, the running state information of the automobile is acceleration information of the automobile, and the detection module is an acceleration sensor.
According to another embodiment of the present invention, the unlock control unit further includes a frame, and the control module, the detection module, and the drive control module are integrated on the frame.
By adopting the technical scheme, the frame is arranged, and the control module, the detection module and the driving control module are integrated on the frame.
According to the door lock control system provided by the other embodiment of the invention, the frame is of a U-shaped structure, two ends of the frame are respectively provided with a positive electrode chuck and a negative electrode chuck which are connected with the positive electrode and the negative electrode of the storage battery, and the positive electrode chuck and the negative electrode chuck are respectively connected with a wiring terminal of the control module through wiring harnesses; and, in addition, the processing unit,
the frame is provided with an insert, and a signal output end of the control module is in communication connection with the lock mechanism through the insert.
By adopting the technical scheme, the positive electrode clamp, the negative electrode clamp and the plug-in are arranged on the frame, so that the unlocking control unit can be more conveniently connected with the storage battery, the locking mechanism and other parts of the automobile.
In addition, when collision occurs, the frame moves integrally with the storage battery, and the control module, the detection module and the driving control module in the frame are not easy to be affected by extrusion.
According to another embodiment of the present invention there is provided a door lock control system,
the unlocking control unit integrated circuit; the driving control module is arranged as a control switch; the control switch is electrically connected with the integrated circuit, the control switch is in communication connection with the lock mechanism, the signal output end of the control module is in communication connection with the control switch, and the control module controls the lock mechanism to unlock or lock according to the collision information through the control switch.
By adopting the technical scheme, the power supply of the drive control module is directly connected with the anode and the cathode of the storage battery through the anode and the cathode chucks on the frame, so that the power supply of the control switch in the collision process can be effectively ensured.
According to the door lock control system provided by the other embodiment of the invention, the unlocking control unit is further integrated with a basic chip, an external crystal oscillator and a CAN transceiver.
Another embodiment of the present invention provides a door lock control method, which is applied to the door lock control system with the above structure, and includes the following steps:
step S1: the detection module detects running state information of the automobile in the running process and sends the running state information to the control module;
step S2: the control module judges whether the automobile collides according to the running state information;
if yes, enter step S3;
if not, entering step S4;
step S3: the control module controls the lock mechanism to unlock by controlling the driving control module;
step S4: the control module controls the lock mechanism not to unlock, and the main unlocking control loop controls the action of the lock mechanism.
By adopting the technical scheme, the vehicle door lock control method can directly detect the collision information of the vehicle through the detection module, the control module can control the state of the lock mechanism according to the collision information, especially when the vehicle collides, the detection module can directly transmit the detected information to the control module, the control module directly controls the driving control module to control the lock mechanism to unlock, the influence of on-off of the harness of the air bag controller and other harnesses is avoided in the process, and the risk that the door lock cannot be opened when the vehicle collides can be further reduced.
According to another embodiment of the present invention, in the step S1, the detection module detects acceleration information of the vehicle during running, and sends the acceleration information to the control module;
in the step S2, the control module determines whether the car collides according to the acceleration information, wherein,
when the acceleration information is smaller than or equal to an acceleration threshold value, the control module judges that the automobile collides, and the step S3 is carried out;
and when the acceleration information is larger than the acceleration threshold value, the control module judges that the automobile is not collided, and the step S4 is carried out.
According to another embodiment of the present invention there is provided a door lock control method,
the step S2 further includes:
step S21: when the control module judges that the automobile collides, the control module controls the driving control module to cut off power after a time threshold value.
By adopting the technical scheme, when the control module judges that the automobile collides, the control module controls the driving control module to cut off power after the time threshold, so that power supply for a certain time can be ensured to be used for unlocking, and fire hazard caused by short circuit of a line can be avoided to endanger the safety of passengers.
Additional features and corresponding advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a control schematic diagram of a door lock control system according to an embodiment of the present invention;
fig. 2a is a schematic structural diagram of an unlock control unit in a door lock control system according to an embodiment of the present invention;
fig. 2b is a schematic structural diagram of a frame of an unlock control unit in the door lock control system according to the embodiment of the present invention;
fig. 3 is a flowchart of a door lock control method according to an embodiment of the present invention.
Reference numerals illustrate:
100. a main unlocking control loop;
110. a vehicle body controller; 120. a storage battery; 130. a fuse box; 140. an airbag controller;
200. a collision unlocking control loop;
210. an unlocking control unit;
211. a control module; 212. a detection module; 213. a frame; 214. a positive electrode chuck; 215. a negative electrode chuck;
216. an insert; 217. a control switch; 218. an integrated circuit; 219. an external crystal oscillator; 220. a base chip;
300. a lock mechanism.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present invention with specific examples. While the description of the invention will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation. Rather, the purpose of the invention described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the invention. The following description contains many specific details for the purpose of providing a thorough understanding of the present invention. The invention may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the invention. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
It should be noted that in this specification, like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present embodiment, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present invention.
The terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
The embodiment of the invention discloses a door lock control system, as shown in fig. 1-2 b, for controlling the actions of a lock mechanism 300 of an automobile door, comprising a main unlocking control loop 100 and a collision unlocking control loop 200; the main unlock control circuit 100 and the crash unlock control circuit 200 are connected in parallel to the signal input of the lock mechanism 300.
Specifically, in this embodiment, an unlocking control unit 210 is disposed in the collision unlocking control circuit 200, the unlocking control unit 210 includes a control module 211, a detection module 212 and a driving control module, the detection module 212 is used for detecting running state information of an automobile, a signal output end of the detection module 212 is connected to a chip pin of the control module 211, the control module 211 is used for sending the running state information to the control module 211, a signal output end of the control module 211 is connected to the driving control module, the driving control module is connected to a chip pin of the driving control module, the driving control module is in communication connection with the lock mechanism 300, the control module 211 obtains collision information of the automobile according to the received running state information, and controls the driving control module to control the lock mechanism 300 to act according to the collision information, wherein when the collision information is that the automobile collides, the control module 211 controls the lock mechanism 300 to unlock, and when the collision information is that the automobile does not collide, the lock mechanism 300 does not unlock.
More specifically, in the door lock control system of the present embodiment, since the unlocking control unit 210 is provided, the unlocking control unit 210 includes the control module 211 and the detection module 212, the detection module 212 can directly detect collision information of the automobile, the control module 211 can control the state of the lock mechanism 300 according to the collision information, especially when the automobile collides, the detection module 212 can directly transmit the detected information to the control module 211, the control module 211 directly controls the lock mechanism 300 to unlock, the process is not affected by on-off of the harness loop of the air bag controller and the main unlocking control loop, and the time is much less than that of the main unlocking control loop, so that the risk that the door lock cannot be opened when the automobile collides can be reduced.
More specifically, in this embodiment, the door lock control system in this embodiment has two parallel main unlocking control loops 100 and a collision unlocking control loop 200, where on-off of one loop does not interfere with the other loop, so it can be known that, when the automobile collides, if the harness of the main unlocking control loop 100 fails, the door lock control system in this embodiment can realize automatic unlocking of the door lock mechanism 300 through the collision unlocking control loop 200, so that passengers in the automobile can be guaranteed to escape to the outside of the automobile in time when an accident occurs, and enough escape time is provided for the passengers.
Further, as shown in fig. 1, the main unlocking control circuit 100 is also connected to an airbag controller.
It should be understood that, in the door lock control system provided in this embodiment, the door lock mechanism 300 of the automobile is controlled by the main unlocking control circuit 100 when the automobile is in normal use; in the event of an accident, the crash unlock control circuit 200 may automatically unlock the door lock mechanism 300.
According to another embodiment of the present invention, a door lock control system is provided, wherein a main unlocking control loop 100 includes a storage battery 120, a fuse box 130 and a body controller 110 connected in series, wherein the body controller 110 is connected with a signal input end of a lock mechanism 300 in a communication manner;
the connection terminal of the unlocking control unit 210 is electrically connected to the connection terminal of the storage battery 120.
In particular, the present embodiment can conveniently supply power to the unlocking control unit 210 by connecting the unlocking control unit 210 to the storage battery 120, and can conveniently attach the unlocking control unit 210 to the automobile without modifying other wire harnesses of the automobile.
More specifically, in this embodiment, the battery 120 and the fuse box 130 may be original components of the automobile, and the specific structure of this embodiment is not explained too much.
More specifically, in the present embodiment, the fuse box 130 is also disposed between the connection terminal of the unlocking control unit 210 and the storage battery 120, so that the power supply safety of the unlocking control unit 210 can be further ensured.
According to another embodiment of the present invention, the driving status information of the vehicle is acceleration information of the vehicle, and the detection module 212 is an acceleration sensor.
According to another embodiment of the present invention, the unlock control unit 210 further includes a frame 213, and the control module 211, the detection module 212, and the drive control module are integrated on the frame 213.
Specifically, in this embodiment, the frame 213 is provided, and the control module 211 and the detection module 212 are integrated on the frame 213, so that the integration level of the unlocking control unit 210 is higher through the arrangement of this structure, and the unlocking control unit 210 can be more conveniently installed on an automobile.
According to another embodiment of the present invention, the frame 213 has a U-shaped structure, and has a positive electrode chuck 214 and a negative electrode chuck 215 connected to the positive electrode and the negative electrode of the battery 120 at two ends, wherein the positive electrode chuck 214 and the negative electrode chuck 215 are connected to the connection terminals of the control module 211 through wire harnesses, respectively; the frame 213 is provided with a plug-in unit 216, and a signal output terminal of the control module 211 is communicatively connected to the lock mechanism 300 via the plug-in unit 216.
Specifically, in this embodiment, the positive electrode chuck 214, the negative electrode chuck 215, and the insert 216 are disposed on the frame 213, so that the unlocking control unit 210 can be more conveniently connected to the battery 120, the lock mechanism 300, and other components of the automobile.
More specifically, in the present embodiment, with this configuration, the frame 213 moves integrally with the battery 120 at the time of collision, and the control module 211, the detection module 212, and the drive control module in the frame 213 are not easily affected by the extrusion.
More specifically, in this embodiment, coils should be further disposed at the positive electrode chuck 214 and the negative electrode chuck 215 to ensure the power supply safety of the entire unlocking control unit 210, and the plug 216 may be a component such as a socket, which may be specifically set according to the actual design and the use requirement, which is not limited in this embodiment.
According to another embodiment of the present invention, the door lock control system, the unlock control unit 210 further includes an integrated circuit 218, and the drive control module is configured to control the switch 217; the control switch 217 is electrically connected with the integrated circuit 218, the control switch 217 is in communication connection with the lock mechanism 300, a signal output end of the control module 211 is in communication connection with the control switch 217, and the control module 211 controls the lock mechanism 300 to unlock or lock according to collision information through the control switch 217.
Specifically, the control switch 217 and the integrated circuit 218 can make the unlocking control unit 210 control the lock mechanism 300 to operate through the control switch 217 when controlling the lock mechanism 300 to operate, so that the performance is more stable.
More specifically, in the present embodiment, since the power supply of the control switch 217 is directly connected to the positive and negative electrodes of the battery 120 through the positive and negative electrode chucks 214,215 on the frame 213, the power supply of the control switch 217 during the collision can be effectively ensured.
More specifically, in this embodiment, the control switch 217 may be configured as a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor), and the integrated circuit 218 may be configured as an SBC board that is common to those skilled in the art, and specific signals thereof may be set according to actual design and use requirements, which is not required in this embodiment.
According to another embodiment of the present invention, the unlock control unit 210 further includes a base chip 220, an external crystal 219, and a CAN transceiver (not shown).
Specifically, the unlock control unit 210 may be provided with a clock signal by the arrangement of the external crystal 219 so that the respective parts remain synchronized.
Another embodiment of the present invention provides a door lock control method, which is applied to the door lock control system in the above embodiment, as shown in fig. 1 to 3, and includes the following steps:
step S1: the detection module 212 detects running state information of the automobile in the running process and sends the running state information to the control module 211;
step S2: the control module 211 judges whether the automobile collides according to the driving state information;
if yes, enter step S3;
if not, entering step S4;
step S3: the control module 211 controls the lock mechanism 300 to unlock;
step S4: the control module 211 controls the lock mechanism 300 not to unlock, and the master unlocking control circuit 100 controls the operation of the lock mechanism 300.
Specifically, in the door lock control method of the embodiment, the detection module 212 can directly detect collision information of the automobile, the control module 211 can control the state of the lock mechanism 300 according to the collision information, especially when the automobile collides, the detection module 212 can directly transmit the detected information to the control module 211, the control module 211 directly controls the lock mechanism 300 to unlock, the process is not influenced by on-off of the harness of the air bag controller and other harnesses, and therefore the risk that the door lock cannot be opened when the automobile collides can be reduced.
According to another embodiment of the present invention, 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;
in step S2, the control module 211 determines whether the car collides according to the acceleration information, wherein,
when the acceleration information is less than or equal to the acceleration threshold, the control module 211 determines that the vehicle collides, and proceeds to step S3;
when the acceleration information is greater than the acceleration threshold, the control module 211 determines that the vehicle is not crashed, and proceeds to step S4.
Specifically, in the present embodiment, the acceleration threshold value may be set to-10 m/s 2 、-21m/s 2 The values should be specifically set according to practical situations, and the present embodiment is not limited to this.
According to another embodiment of the present invention there is provided a door lock control method,
when the unlock control unit 210 further includes the control switch 217 and the integrated circuit 218, it further includes in step S2:
step S21: when the control module 211 determines that the automobile collides, the control module 211 controls the control switch 217 to be powered off after a time threshold.
Specifically, when the control module 211 determines that the automobile collides, the control module 211 controls the control switch 217 to be powered off after a time threshold, so that the fire hazard caused by short circuit of the line can be avoided to endanger the safety of passengers.
More specifically, in this embodiment, the time threshold may be set to values of 200s, 210.5s, etc., which should be specifically set according to practical situations, and this embodiment is not limited only. The present embodiment is preferably set to 200s.
Further, in the present embodiment, the unlock control unit 210 is integrated with a timer, by which the time of occurrence of the collision is calculated.
Furthermore, in the present embodiment, the unlocking control unit 210 is further integrated with a signal transceiver, and in the use process, the signal transceiver is used to communicate with various components of the automobile.
Specifically, the specific model of the timer is not required in this embodiment, and the signal transceiver may be a CAN transceiver, and the specific model of the signal transceiver should be determined according to the actual model of the automobile and the model of each component, which is not limited in this embodiment.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the invention with reference to specific embodiments, and it is not intended to limit the practice of the invention to those descriptions. Various changes in form and detail may be made therein by those skilled in the art, including a few simple inferences or alternatives, without departing from the spirit and scope of the present invention.

Claims (10)

1. A door lock control system for controlling the action of a lock mechanism of an automobile door comprises a main unlocking control loop and a collision unlocking control loop; the device is characterized in that the main unlocking control loop and the collision unlocking control loop are connected in parallel with the signal input end of the lock mechanism; wherein, the liquid crystal display device comprises a liquid crystal display device,
the automobile lock comprises a collision unlocking control loop, and is characterized in that an unlocking control unit is arranged in the collision unlocking control loop and comprises a control module, a detection module and a driving control module, wherein the detection module is used for detecting running state information of an automobile, a signal output end of the detection module is connected with a chip pin of the control module so as to send the running state information to the control module, a signal output end of the control module is connected with the driving control module, the driving control module is in communication connection with the lock mechanism, the control module obtains collision information of the automobile according to the received running state information and controls the driving control module to control the action of the lock mechanism, and when the collision information is that the automobile collides, the control module controls the lock mechanism to unlock through controlling the driving control module, and when the collision information is that the automobile does not collide, the lock mechanism does not unlock.
2. The door lock control system of claim 1, wherein the primary unlocking control loop comprises a battery, a fuse box, and a body controller in series, wherein the body controller is communicatively coupled to the signal input of the lock mechanism; the wiring terminal of the unlocking control unit is electrically connected to the wiring terminal of the storage battery.
3. The door lock control system according to claim 1, wherein the running state information of the vehicle is acceleration information of the vehicle, and the detection module is an acceleration sensor.
4. The door lock control system of claim 1, wherein the unlock control unit further comprises a frame, the control module, the detection module, and the drive control module being integrated on the frame.
5. The door lock control system of claim 4, wherein the frame has a U-shaped structure, and both ends of the frame are respectively provided with a positive electrode chuck and a negative electrode chuck connected with the positive electrode and the negative electrode of the storage battery, and the positive electrode chuck and the negative electrode chuck are respectively connected with a connection terminal of the control module; and, in addition, the processing unit,
the frame is provided with an insert, and a signal output end of the control module is in communication connection with the lock mechanism through the insert.
6. The door lock control system according to any one of claims 1 to 5, wherein,
the unlocking control unit integrated circuit; the driving control module is arranged as a control switch; the control switch is electrically connected with the integrated circuit, the control switch is in communication connection with the lock mechanism, the signal output end of the control module is in communication connection with the control switch, and the control module controls the lock mechanism to unlock or lock according to the collision information through the control switch.
7. The door lock control system of claim 6, wherein the unlock control unit is further integrated with a base chip, an external crystal oscillator, and a CAN transceiver.
8. A door lock control method, characterized in that the door lock control method is applied to the door lock control system according to any one of claims 1 to 7, comprising the steps of:
step S1: the detection module detects running state information of the automobile in the running process and sends the running state information to the control module;
step S2: the control module judges whether the automobile collides according to the running state information;
if yes, enter step S3;
if not, entering step S4;
step S3: the control module controls the lock mechanism to unlock;
step S4: the control module controls the lock mechanism not to unlock, and the main unlocking control loop controls the action of the lock mechanism.
9. The door lock control method according to claim 8, wherein,
in the step S1, the detection module detects acceleration information of the automobile during running, and sends the acceleration information to the control module;
in the step S2, the control module determines whether the car collides according to the acceleration information, wherein,
when the acceleration information is smaller than or equal to an acceleration threshold value, the control module judges that the automobile collides, and the step S3 is carried out;
and when the acceleration information is larger than the acceleration threshold value, the control module judges that the automobile is not collided, and the step S4 is carried out.
10. The door lock control method according to claim 9, wherein,
the step S2 further includes:
step S21: when the control module judges that the automobile collides, the control module controls the driving control module to cut off power after a time threshold value.
CN202111409729.0A 2021-11-25 2021-11-25 Door lock control system and control method Pending CN116160992A (en)

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CN202111409729.0A CN116160992A (en) 2021-11-25 2021-11-25 Door lock control system and control method

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