A vehicle safety control device, method, and vehicle

Abstract

This application provides a vehicle safety control device, method, and vehicle. The device includes a collision detection device, a controller, an electronic switch, a relay, and a backup power supply. The collision detection device detects a collision signal and sends it to the controller. Upon receiving the collision signal, the controller determines whether the door lock unlocking conditions are met. If the unlocking conditions are met, the controller activates the electronic switch, which in turn controls the backup power supply to the relay coil to conduct, causing the relay to close. The relay's common contact and normally open contact are connected to the backup power supply and the vehicle's door lock drive device, respectively. When the relay is closed, the normally open contact is connected to the backup power supply, and the electrical signal output by the backup power supply is transmitted to the door lock drive device through the relay to control door lock unlocking. This effectively controls door lock unlocking after a vehicle collision, thereby improving vehicle driving safety.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a vehicle safety control device, method, and vehicle. Background Technology

[0002] With the continuous development of vehicle technology, the requirements for vehicle safety are also becoming increasingly stringent. Currently, after a vehicle collision, the battery, wiring, and other components are easily damaged, making it impossible to ensure that the doors can be opened normally. This can trap occupants inside the vehicle, increasing the risk of injury and potentially delaying rescue efforts. In cases such as vehicle fire or submersion in water, the consequences can be disastrous.

[0003] Therefore, it is necessary to provide a method that can control the normal opening of vehicle doors after a collision in order to improve driving safety. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a vehicle safety control device, method, and vehicle to solve the problem that existing technologies cannot control the normal opening of vehicle doors after a collision.

[0005] To achieve the above technical objectives, the embodiments of this application provide the following technical solutions:

[0006] In one aspect, the embodiments of this specification provide a vehicle safety control device, including: a collision detection device, a controller, an electronic switch, a relay, and a backup power supply;

[0007] The collision detection device is used to detect collision signals and send them to the controller;

[0008] The controller is used to determine whether the door lock unlocking conditions are met when the collision signal is received, and to control the electronic switch to be turned on when the door lock unlocking conditions are met;

[0009] The electronic control switch is used to control the circuit that supplies power to the coil of the relay from the backup power supply when it is turned on.

[0010] The common contact of the relay is connected to the backup power supply, and the normally open contact of the relay is connected to the door lock drive device of the vehicle. The relay is used to transmit the electrical signal output by the backup power supply to the door lock drive device when the normally open contact is closed, so as to control the door lock to unlock.

[0011] In one embodiment, the system further includes a first drive module, the signal input terminal of which is connected to the controller, the signal output terminal of which is connected to the door lock drive device, and the power input terminal of which is connected to the backup power supply.

[0012] The controller is also used to output a door lock unlocking control signal to the first drive module when the door lock unlocking conditions are met;

[0013] The first drive module is used to output an unlock drive signal to the door lock drive device when it receives the door lock unlock control signal, so as to control the door lock to unlock.

[0014] In one embodiment, the system further includes a signal detection module, the input of which is connected to the normally open contact and / or normally closed contact of the relay, and the output of which is connected to the controller.

[0015] The signal detection module is used to detect the unlocking status signal of the relay and output it to the controller; the unlocking status signal is used to indicate whether the relay controls the door lock to unlock;

[0016] The controller is also configured to output the door lock unlocking control signal to the first drive module again when the unlocking status signal indicates that the relay has not controlled the door lock to unlock.

[0017] In one embodiment, the output terminal of the signal detection module is also connected to the signal input terminal of the first driving module, for outputting the unlock status signal to the first driving module;

[0018] The unlock status signal is used to trigger the first drive module to output the unlock drive signal to the door lock drive device when the relay does not control the door lock to unlock.

[0019] In one implementation, the controller is specifically used for:

[0020] Upon receiving the collision signal, target data is acquired, and based on the target data, it is determined whether the door lock unlocking conditions are met; the target data includes at least one of vehicle speed signal, battery status signal, and body controller collision feedback signal.

[0021] In one implementation, the controller is specifically used for:

[0022] When the vehicle speed signal is 0, it is determined that the door lock unlocking condition is met;

[0023] When the vehicle speed signal is greater than 0 and less than or equal to the preset vehicle speed, it is determined whether the door lock unlocking conditions are met based on the battery status signal and / or the body controller collision feedback signal.

[0024] When the vehicle speed signal is greater than the preset vehicle speed, it is determined that the door lock unlocking conditions are not met.

[0025] In one implementation, the controller is specifically used for:

[0026] When the vehicle speed signal is greater than 0 and less than or equal to the preset vehicle speed, if the battery status signal indicates that the battery is fault-free, then when the collision feedback signal from the body controller is received, it is determined that the door lock unlocking condition is met; and when the collision feedback signal from the body controller is not received, it is determined that the door lock unlocking condition is not met.

[0027] If the battery status signal indicates a battery malfunction, then the door lock unlocking condition is met.

[0028] In one embodiment, the system further includes a second drive module, the signal input terminal of which is connected to the controller, the signal output terminal of which is connected to the window drive device, and the power input terminal of which is connected to the backup power supply.

[0029] The controller is also configured to output a window lowering control signal to the second drive module when the collision signal is received;

[0030] The second drive module is used to output a window lowering drive signal to the window drive device when it receives the window lowering control signal, so as to control the window to lower.

[0031] Secondly, embodiments of this specification provide a vehicle safety control method applied to a vehicle safety control device as described in any of the preceding claims, the method comprising the following steps performed by the controller:

[0032] Upon receiving a collision signal from the collision detection device, the system determines whether the door lock unlocking conditions are met. If the unlocking conditions are met, the system outputs an electrical signal to the electronic control switch to control the door lock to unlock.

[0033] Thirdly, embodiments of this specification provide a vehicle including: a vehicle safety control device as described in any of the preceding claims.

[0034] Fourthly, embodiments of this specification provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the vehicle safety control method as described in any of the preceding claims.

[0035] Fifthly, embodiments of this specification provide a computer program product or computer program, the computer program product including a computer program stored in a computer-readable storage medium; a processor of the computer device reads the computer program from the computer-readable storage medium, and when the processor executes the computer program, it implements the vehicle safety control method as described in any of the preceding claims.

[0036] As can be seen from the above technical solutions, the embodiments of this application provide a vehicle safety control device, method, and vehicle. The device includes a collision detection device, a controller, an electronic control switch, a relay, and a backup power supply. The collision detection device detects a collision signal and sends it to the controller. When the controller receives the collision signal sent by the collision detection device, it determines whether the door lock unlocking conditions are met. If the door lock unlocking conditions are met, it controls the electronic control switch to turn on, thereby controlling the circuit of the backup power supply to the relay coil to conduct, so that the relay is energized and closed. The common contact and normally open contact of the relay are connected to the backup power supply and the vehicle's door lock drive device, respectively. When the relay is closed, the normally open contact is connected to the backup power supply, and the electrical signal output by the backup power supply is transmitted to the door lock drive device through the relay to control the door lock unlocking. Thus, even when the vehicle body controller cannot effectively control the door lock unlocking after a collision, the door lock can still be controlled to unlock through hardware circuitry, thereby effectively controlling the door lock unlocking after a collision and improving the driving safety of the vehicle. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0038] Figure 1 A schematic diagram of the structure of a first vehicle safety control device provided for the embodiments of this specification.

[0039] Figure 2 This is a schematic diagram of the structure of a second type of vehicle safety control device provided for the embodiments of this specification.

[0040] Figure 3 A schematic diagram of the structure of a third type of vehicle safety control device provided for the embodiments of this specification.

[0041] Figure 4 This is a schematic diagram of the structure of the fourth type of vehicle safety control device provided for the embodiments of this specification.

[0042] Figure 5 A schematic diagram of the structure of the fifth type of vehicle safety control device provided for the embodiments of this specification.

[0043] Figure 6 A schematic diagram of the sixth type of vehicle safety control device provided for the embodiments of this specification.

[0044] Figure 7 This is a flowchart illustrating a vehicle safety control method provided for embodiments of this specification. Detailed Implementation

[0045] Unless otherwise defined, the technical or scientific terms used in the embodiments of this specification shall have the ordinary meaning understood by one of ordinary skill in the art to which this specification pertains. The terms "first," "second," and similar terms used in the embodiments of this specification do not indicate any order, quantity, or importance, but are merely used to avoid confusion of constituent elements.

[0046] Unless the context otherwise requires, throughout this specification, "a plurality of" means "at least two," and "including" is interpreted as open-ended or encompassing, that is, "including, but not limited to." In the description of this specification, terms such as "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples" are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this specification. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example.

[0047] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this specification.

[0048] Overview

[0049] As described in the background section, with the continuous development of vehicle technology, the requirements for vehicle safety are becoming increasingly stringent.

[0050] Currently, after a vehicle collision, the vehicle's battery, wiring, and other components are easily damaged, making it impossible to ensure that the doors can be opened normally. This can trap people inside the vehicle, increasing the risk of injury and potentially delaying rescue efforts. In cases such as vehicle fire or submersion in water, the consequences can be disastrous.

[0051] Therefore, it is necessary to provide a method that can control the normal opening of vehicle doors after a collision in order to improve driving safety.

[0052] To address the problem of traditional methods failing to control door opening after a vehicle collision, the present application's technical solution includes a vehicle safety control device comprising a collision detection device, a controller, an electronic switch, a relay, and a backup power supply. The collision detection device detects a collision signal and sends it to the controller. Upon receiving the collision signal, the controller determines whether the door unlocking conditions are met. If the conditions are met, the controller activates the electronic switch, which in turn activates the backup power supply to the relay coil, causing the relay to close. The relay's common contact and normally open contact are connected to the backup power supply and the vehicle's door lock drive mechanism, respectively. When the relay is closed, the normally open contact connects to the backup power supply, and the electrical signal output by the backup power supply is transmitted through the relay to the door lock drive mechanism to control door unlocking. Therefore, even when the vehicle body controller cannot effectively control door unlocking after a collision, the hardware circuitry can still control door unlocking, thus improving vehicle driving safety.

[0053] Based on the above inventive concept, the vehicle safety control device provided in the embodiments of this specification will be described exemplarily below.

[0054] Exemplary System

[0055] This specification provides a vehicle safety control device, such as... Figure 1 As shown, it includes: a collision detection device 101, a controller 102, an electronic switch 103, a relay 104, and a backup power supply 105;

[0056] The collision detection device 101 is used to detect collision signals and send them to the controller 102;

[0057] The controller 102 is used to determine whether the door lock unlocking conditions are met when the collision signal is received, and to control the electric switch 103 to be turned on when the door lock unlocking conditions are met.

[0058] The electronic control switch 103 is used to control the circuit that supplies power to the coil of the relay 104 by the backup power supply 105 when it is turned on.

[0059] The common contact of the relay 104 is connected to the backup power supply 105, and the normally open contact of the relay 104 is connected to the door lock drive device 106 of the vehicle. The relay 104 is used to transmit the electrical signal output by the backup power supply 105 to the door lock drive device 106 when the normally open contact is closed, so as to control the door lock to unlock.

[0060] Specifically, the collision detection device 101 is used to detect vehicle collision signals and send the detected collision signals to the controller 102. The collision detection device 101 may include a collision sensor, and may also include a contact switch and a collision triggering device. The contact switch is connected to the collision triggering device, and the collision triggering device can be connected to the controller 102 via a CAN line. When the collision detection device 101 includes a contact switch and a collision triggering device, if a vehicle collision occurs, the contact switch is turned on and transmits a signal indicating that the contact switch is turned on to the collision triggering device. When the collision triggering device receives the signal indicating that the contact switch is turned on, it determines that a vehicle collision has occurred and sends a collision signal to the controller 102.

[0061] The collision detection device 101 can be installed on the front bumper of the vehicle to quickly detect the collision signal when the vehicle is involved in a collision.

[0062] The controller 102 can be a controller other than the body controller. For example, it can be a newly added controller 102, or it can be an existing controller 102 on the vehicle, such as the whole vehicle controller 102.

[0063] The controller 102 is connected to the collision detection device 101. After receiving the collision signal sent by the collision detection device 101, the controller 102 can determine whether the door lock unlocking conditions are met.

[0064] In determining whether the door lock unlocking conditions are met, the controller 102 can determine that the door lock unlocking conditions are not met when the vehicle speed is greater than the vehicle speed threshold, and determine that the door lock unlocking conditions are met when the vehicle speed is less than or equal to the vehicle speed threshold; it can also determine that the door lock unlocking conditions are met when the battery and / or body controller malfunctions and the vehicle speed is less than or equal to the vehicle speed threshold; it can also determine whether the collision signal sent by the collision detection device 101 is reliable, and determine that the door lock unlocking conditions are met when the collision signal is reliable and the vehicle speed is less than or equal to the vehicle speed threshold.

[0065] The control terminal of the electric switch 103 can be connected to the controller 102. When the controller 102 detects that the door lock unlocking conditions are not met, it can control the electric switch 103 to be in the off state. When the controller 102 detects that the door lock unlocking conditions are met, it can control the electric switch 103 to be turned on. For example, the controller 102 can directly send a digital signal to the electric switch 103 to control the electric switch 103 to be turned on. It can also send a door lock unlocking command to the collision triggering device. When the collision triggering device receives the door lock unlocking command, it sends a digital signal to the electric switch 103 to control the electric switch 103 to be turned on.

[0066] The electronic control switch 103 is used to control the connection and disconnection of the power supply line from the backup power supply 105 to the coil of the relay 104. Thus, when the electronic control switch 103 is turned on, the power supply line from the backup power supply 105 to the coil of the relay 104 is connected, the coil of the relay 104 is energized, and the normally open contact of the relay 104 is closed, that is, the normally open contact of the relay 104 is connected to the common contact of the relay 104.

[0067] The common contact of relay 104 can be connected to the backup power supply 105, and the normally open contact of relay 104 is connected to the door lock drive device 106 of the vehicle. Thus, when the normally open contact of relay 104 is connected to the common contact of relay 104, the electrical signal output by the backup power supply 105 can be transmitted to the door lock drive device 106 through relay 104. The door lock drive device 106 can be a door lock motor, etc. When the door lock motor receives the electrical signal, it can drive the lock cylinder of the door lock to rotate or move, etc., so as to unlock the door lock.

[0068] Therefore, even if the vehicle body controller cannot effectively control the door locks to unlock after a collision, the door locks can still be unlocked through hardware circuitry, thus improving the vehicle's driving safety.

[0069] Meanwhile, the controller 102 determines whether the door lock unlocking conditions are met, and controls the door lock to unlock when the unlocking conditions are met, thus enabling effective unlocking of the door lock while ensuring vehicle driving safety.

[0070] In one feasible implementation, such as Figure 2 As shown, it also includes a first drive module 201, the signal input terminal of the first drive module 201 is connected to the controller 102, the signal output terminal of the first drive module 201 is connected to the door lock drive device 106, and the power input terminal of the first drive module 201 is connected to the backup power supply 105.

[0071] The controller 102 is also used to output a door lock unlocking control signal to the first drive module 201 when the door lock unlocking conditions are met;

[0072] The first drive module 201 is used to output an unlock drive signal to the door lock drive device 106 when it receives the door lock unlock control signal, so as to control the door lock to unlock.

[0073] Specifically, the vehicle safety control device may further include a first drive module 201, which may employ a drive chip, such as a low-side drive chip. The signal input terminal of the first drive module 201 is connected to the controller 102 to receive control signals sent by the controller 102. The signal output terminal of the first drive module 201 is connected to the door lock drive device 106 to output an unlocking drive signal to the door lock drive device 106, thereby controlling the door lock to unlock. The power input terminal of the first drive module 201 can be connected to a backup power supply 105, so that the first drive module 201 can still operate normally in the event of battery failure, thus enabling effective door lock unlocking.

[0074] When the controller 102 determines that the door lock unlocking conditions are met, it can simultaneously control the electronic switch 103 to turn on and output a door lock unlocking control signal to the signal input terminal of the first drive module 201 to trigger the first drive module 201 to control the door lock unlocking. When the first drive module 201 receives the door lock unlocking control signal, it can output an unlocking drive signal to the door lock drive device 106 to control the door lock drive device 106 to perform door lock unlocking. This achieves redundant control of door lock unlocking, thus effectively ensuring normal door lock unlocking after a vehicle collision and improving vehicle driving safety.

[0075] In one feasible implementation, such as Figure 3 As shown, it also includes a signal detection module 301, the input terminal of which is connected to the normally open contact and / or normally closed contact of the relay 104, and the output terminal of which is connected to the controller 102.

[0076] The signal detection module 301 is used to detect the unlocking status signal of the relay 104 and output it to the controller 102; the unlocking status signal is used to indicate whether the relay 104 controls the door lock to unlock;

[0077] The controller 102 is also used to output the door lock unlocking control signal to the first drive module 201 again when the unlocking status signal indicates that the relay 104 has not controlled the door lock to unlock.

[0078] Specifically, the vehicle safety control device may further include a signal detection module 301. The input terminal of the signal detection module 301 may be connected to the normally open contact of the relay 104, or to the normally closed contact of the relay 104, or simultaneously to both normally open and normally closed contacts, to detect the electrical signals on the corresponding contacts. Figure 3 The example only uses signal detection module 301 connected to both normally open and normally closed contacts simultaneously. Figure 3The connection between the backup power supply 105 and the first drive module 201 is not shown. The signal detection module 301 can generate an unlock status signal for the relay 104 based on the detected electrical signal, and feed it back to the controller 102. For example, logical operations can be performed on the detected electrical signal to generate the unlock status signal for the relay 104.

[0079] The unlocking status signal of relay 104 indicates whether relay 104 controls the door lock to unlock. For example, when there is a signal at the normally open contact of relay 104 and / or no signal at the normally closed contact of relay 104, it indicates that relay 104 is controlling the door lock to unlock. When there is no signal at the normally open contact of relay 104 and / or a signal at the normally closed contact of relay 104, it indicates that relay 104 is not controlling the door lock to unlock. When there is no signal at both the normally open and normally closed contacts of relay 104 or both are signaled, it indicates that relay 104 is faulty. In this case, controller 102 can control the electric switch 103 to open, so as to stop the door lock from being unlocked through relay 104.

[0080] As a preferred implementation, the input terminal of the signal detection module 301 can be connected to both normally open and normally closed contacts simultaneously to ensure the validity of the unlock status signal.

[0081] When the controller 102 receives the unlock status signal output by the signal detection module 301, it can determine whether the unlock status signal indicates that the relay 104 is controlling the door lock to unlock. If the unlock status signal indicates that the relay 104 is controlling the door lock to unlock, the current output can remain unchanged. If the unlock status signal indicates that the relay 104 is not controlling the door lock to unlock, the controller 102 can output the door lock unlock control signal to the first drive module 201 again to achieve redundant control of the first drive module 201. This effectively ensures the normal unlocking of the door lock after a vehicle collision, thus improving the driving safety of the vehicle.

[0082] In one feasible implementation, such as Figure 4 As shown, the output terminal of the signal detection module 301 is also connected to the signal input terminal of the first driving module 201, and is used to output the unlock status signal to the first driving module 201;

[0083] The unlock status signal is used to trigger the first drive module 201 to output the unlock drive signal to the door lock drive device 106 when the relay 104 does not control the door lock to unlock.

[0084] Specifically, the output of the signal detection module 301 can also be connected to the signal input of the first drive module 201 to simultaneously output the unlock status signal to the signal input of the controller 102 and the first drive module 201, so as to trigger the first drive module 201 to control the door lock drive device 106 through the unlock status signal.

[0085] Specifically, when the unlocking status signal indicates that the relay 104 is not controlling the door lock to unlock, the unlocking status signal, when output to the first drive module 201, can be used to trigger the first drive module 201 to output an unlocking drive signal to the door lock drive device 106; when the unlocking status signal indicates that the relay 104 is controlling the door lock to unlock, the unlocking status signal, when output to the first drive module 201, cannot trigger the first drive module 201 to output an unlocking drive signal to the door lock drive device 106.

[0086] It is understood that the signal input terminal of the first drive module 201 can simultaneously receive the signal output by the controller 102 and the signal output by the signal detection module 301. When at least one of the signals is used to trigger the first drive module 201 to output an unlocking drive signal to the door lock drive device 106, the first drive module 201 can output an unlocking drive signal to the door lock drive device 106, thereby realizing multiple redundant control of the first drive module 201. In this way, after a vehicle collision, the normal unlocking of the door lock can be effectively guaranteed, thus improving the driving safety of the vehicle.

[0087] In one feasible implementation, the controller 102 is specifically used for:

[0088] Upon receiving the collision signal, target data is acquired, and based on the target data, it is determined whether the door lock unlocking conditions are met; the target data includes at least one of vehicle speed signal, battery status signal, and body controller collision feedback signal.

[0089] Specifically, the vehicle speed signal can represent the real-time vehicle speed, the battery status signal can be used to represent whether the battery is faulty, and the body controller collision feedback signal can be the collision signal detected by the body controller and fed back to the controller 102.

[0090] In practice, the controller 102 can determine whether the door lock unlocking conditions are met based on target data, which may include at least one of vehicle speed signal, battery status signal, and body controller collision feedback signal.

[0091] For example, when the target data includes a vehicle speed signal, the door lock unlocking condition can be determined to be unmet if the vehicle speed is greater than a vehicle speed threshold, and met if the vehicle speed is less than or equal to the vehicle speed threshold. When the target data includes a battery status signal, the door lock unlocking condition can be determined to be unmet if the battery status signal indicates no battery fault, and met if the battery status signal indicates a battery fault. When the target data includes a body controller collision feedback signal, the door lock unlocking condition can be determined to be met if the body controller collision feedback signal indicates a vehicle collision, and unmet if the body controller collision feedback signal indicates no vehicle collision. When the target data includes both a vehicle speed signal and a battery status signal, the door lock unlocking condition can be determined to be met if the vehicle speed is less than or equal to a vehicle speed threshold and the battery status signal indicates a battery fault; otherwise, the door lock unlocking condition is determined to be unmet. When the target data includes both vehicle speed and body controller collision feedback signals, the door unlocking condition can be determined to be met if the vehicle speed is less than or equal to a vehicle speed threshold and the body controller collision feedback signal indicates that a collision has occurred; otherwise, the door unlocking condition is not met. When the target data includes both battery status and body controller collision feedback signals, the door unlocking condition can be determined to be not met if the battery status signal indicates that the battery is fault-free and no body controller collision feedback signal has been received (i.e., the body controller collision feedback signal indicates that a collision has not occurred); otherwise, the door unlocking condition is met. When the target data includes vehicle speed, battery status, and body controller collision feedback signals, the door unlocking condition can be determined to be not met if the vehicle speed is greater than a vehicle speed threshold, and further determined based on the battery status and body controller collision feedback signals when the vehicle speed is less than or equal to the vehicle speed threshold.

[0092] Therefore, the controller 102 can effectively identify whether it is necessary to control redundant door lock unlocking structures (such as relay 104 and first drive module 201) outside the body controller to unlock the door based on at least one of the vehicle speed signal, battery status signal and body controller collision feedback signal. Thus, when the redundant door lock unlocking structure is triggered according to the judgment result of whether the door lock unlocking condition is met, the door lock can be effectively unlocked while ensuring vehicle driving safety.

[0093] In one feasible implementation, the controller 102 is specifically used for:

[0094] When the vehicle speed signal is 0, it is determined that the door lock unlocking condition is met;

[0095] When the vehicle speed signal is greater than 0 and less than or equal to the preset vehicle speed, it is determined whether the door lock unlocking conditions are met based on the battery status signal and / or the body controller collision feedback signal.

[0096] When the vehicle speed signal is greater than the preset vehicle speed, it is determined that the door lock unlocking conditions are not met.

[0097] Specifically, when the controller 102 receives a collision signal sent by the collision detection device 101, if the vehicle speed is 0, it indicates that the vehicle has stopped running. At this time, it can be directly determined that the door lock unlocking condition is met, and the controller 102 controls the relay 104 and the first drive module 201 to unlock the door lock. There is no need to judge whether the collision signal sent by the collision detection device 101 is reliable or whether the body controller can perform door lock unlocking. Thus, when the collision signal sent by the collision detection device 101 is received, the controller can control the door lock to unlock in time, which further improves driving safety.

[0098] When the vehicle speed is greater than 0 and less than or equal to the preset speed, the door lock unlocking conditions can be further determined based on the battery status signal and / or the body controller collision feedback signal. For example, if the battery status signal indicates a battery fault, the door lock unlocking conditions can be determined to be met; if the battery status signal indicates no battery fault, the door lock unlocking conditions can be directly determined not to be met; and if the battery status signal indicates no battery fault and no body controller collision feedback signal is received, the door lock unlocking conditions can also be determined not to be met.

[0099] When the vehicle speed exceeds the preset speed, it indicates that opening the door poses a high safety risk. At this point, it can be determined that the door lock unlocking conditions are not met, and an alarm signal is sent to the vehicle's center console to remind the driver to slow down. Once the vehicle speed decreases to the preset speed, further judgment is made on whether the door lock unlocking conditions are met, thereby effectively ensuring driving safety.

[0100] In one feasible implementation, the controller 102 is specifically used for:

[0101] When the vehicle speed signal is greater than 0 and less than or equal to the preset vehicle speed, if the battery status signal indicates that the battery is fault-free, then when the collision feedback signal from the body controller is received, it is determined that the door lock unlocking condition is met; and when the collision feedback signal from the body controller is not received, it is determined that the door lock unlocking condition is not met.

[0102] If the battery status signal indicates a battery malfunction, then the door lock unlocking condition is met.

[0103] Specifically, when the vehicle speed is greater than 0 and less than or equal to the preset vehicle speed, if the battery status signal indicates that the battery is fault-free and a collision feedback signal is received from the body controller, it indicates that the collision signal sent by the collision detection device 101 is reliable, that is, the vehicle has collided. At this time, it can be determined that the door lock unlocking conditions are met, so that the door lock can be redundantly unlocked through the relay 104 and the first drive module 201 to ensure the effective unlocking of the door lock.

[0104] When the vehicle speed is greater than 0 and less than or equal to the preset vehicle speed, if the battery status signal indicates that the battery is fault-free and no collision feedback signal is received from the body controller, it indicates that the battery can supply power to the body controller normally. However, the body controller does not send a collision signal back to the controller 102. At this time, it can be determined that the collision signal sent by the collision detection device 101 is unreliable, that is, the collision detection device 101 has made a misjudgment. Therefore, it can be determined that the door lock unlocking conditions are not met, so as to avoid accidentally opening the door while the vehicle is in motion, which would affect the driving experience or cause unnecessary safety risks.

[0105] In one feasible implementation, such as Figure 5 As shown, it also includes a second drive module 501. The signal input terminal of the second drive module 501 is connected to the controller 102, the signal output terminal of the second drive module 501 is connected to the window drive device 502, and the power input terminal of the second drive module 501 is connected to the backup power supply 105. Figure 5 (Not reflected in the text);

[0106] The controller 102 is also configured to output a window lowering control signal to the second drive module 501 when it receives the collision signal;

[0107] The second drive module 501 is used to output a window lowering drive signal to the window drive device 502 when it receives the window lowering control signal, so as to control the window to lower.

[0108] Specifically, the vehicle safety control device may further include a second drive module 501, which may employ a drive chip, such as a low-side drive chip. The signal input terminal of the second drive module 501 is connected to the controller 102 to receive control signals sent by the controller 102. The signal output terminal of the second drive module 501 is connected to the window drive device 502 to output a window lowering drive signal to the window drive device 502, thereby controlling the window to lower. The power input terminal of the second drive module 501 can be connected to a backup power supply 105, so that the second drive module 501 can still operate normally in the event of battery failure, thus effectively controlling the window to lower and further improving vehicle driving safety.

[0109] Upon receiving a collision signal from the collision detection device 101, the controller 102 can output a window lowering control signal to the second drive module 501, triggering the second drive module 501 to control the window to lower. Upon receiving the window lowering control signal, the second drive module 501 can output a window lowering drive signal to the window drive device 502, which can be a window motor, to control the window to lower, thus achieving redundant control of the window. Therefore, after a vehicle collision, the window can be lowered immediately to facilitate occupant escape, further improving vehicle driving safety.

[0110] The structure and operation of the vehicle safety control device of this application are illustrated below through a preferred embodiment. Figure 6 As shown, the collision detection device 101 includes a contact switch 601 and a collision triggering device 602. The contact switch 601 is connected to the collision triggering device 602, and the collision triggering device 602 is connected to the controller 102 via a CAN line. The electronic control switch 103 uses a first transistor Q1. The base of the first transistor Q1 is connected to the collision triggering device 602 through a first resistor R1. The collector of the first transistor Q1 is connected to the coil of the relay 104. The emitter of the first transistor Q1 is grounded. A second resistor R2 is also connected between the base of the first transistor Q1 and the first resistor R1. One end of the second resistor R2 is connected to the line between the base of the first transistor Q1 and the first resistor R1, and the other end of the second resistor R2 is grounded. A first diode D1 is connected in parallel with the relay 104 to protect the relay 104. The end of the coil of the relay 104 that is not connected to the first transistor Q1 and the common contact (contact #3) of the relay 104 are both connected to the backup power supply 105. Figure 6The normally open contact (5# contact) and normally closed contact (4# contact) of relay 104 are both connected to signal detection module 301. The normally open contact (5# contact) of relay 104 is also connected to door lock drive device 106. The controller 102 is also connected to the signal input terminal (GV port) of the first drive module 201 via a signal conversion circuit. The signal conversion circuit includes a third resistor R3, a fourth resistor R4, and a second transistor Q2. One end of the third resistor R3 is connected to the controller 102, and the other end is connected to the base of the second transistor Q2. One end of the fourth resistor R4 is connected to the line between the third resistor R3 and the base of the second transistor Q2, and the other end is grounded. The collector of the second transistor Q2 is connected to the signal input terminal (GV port) of the first drive module 201, and the emitter of the second transistor Q2 is grounded. The backup power supply 105 is connected to the junction point between the signal input terminal (GV port) of the first drive module 201 and the collector of the second transistor Q2 via a fifth resistor R5. The power input terminal (OUT port) of the first drive module 201 is connected to the backup power supply 105, and the signal output terminal (IN port) of the first drive module 201 is connected to the door lock drive device 106. The signal detection module 301 is connected to the controller 102 and the connection point between the controller 102 and the third resistor R3. The controller 102 is connected to the signal input terminal of the second drive module 501, the power input terminal of the second drive module 501 is connected to the backup power supply 105, and the signal output terminal of the second drive module 501 is connected to the window drive device 502. The controller 102 is also connected to the body controller 603 via a CAN line to receive collision feedback signals sent by the body controller 603. The body controller 603 is connected to the window drive device 502 and the door lock drive device 106. During normal operation, the body controller 603 can detect collision signals and control the windows to lower and the door locks to unlock when a collision signal is detected.

[0111] When a vehicle collision occurs, the contact switch 601 is turned on. When the collision triggering device 602 receives the signal indicating that the contact switch 602 is turned on, it sends a collision signal to the controller 102. The controller 102 combines the vehicle speed signal, the battery status signal and the collision feedback signal sent by the body controller 603 to determine whether the door lock unlocking conditions are met. If they are met, it outputs a high-level door lock unlocking control signal to the signal conversion circuit and sends a door lock unlocking command to the collision triggering device 602 via the CAN line.

[0112] When the collision trigger device 602 receives a door lock unlocking command, it sends a digital signal to the first transistor Q1, causing Q1 to conduct. This energizes the coil of relay 104, connecting the normally open contact (contact #5) of relay 104 to the backup power supply 105, thus outputting an electrical signal to the door lock drive device 106 to control the door lock unlocking. Simultaneously, the high-level door lock unlocking control signal turns on the second transistor Q2, causing the signal input terminal (GV port) of the first drive module 201 to receive a low-level signal. Therefore, the first drive module 201 outputs an unlocking drive signal to the door lock drive device 106 to control the door lock unlocking.

[0113] The signal detection module 301 detects the signals from the normally open contact (contact #5) and normally closed contact (contact #4) of the relay 104, and simultaneously outputs an unlock status signal to the controller 102 and the first drive module 201. Specifically, when the unlock status signal is low, it indicates that the relay 104 is controlling the door lock to unlock. The output signal of the controller 102 remains unchanged, and the second transistor Q2 is disconnected. The signal input terminal (GV port) of the first drive module 201 receives a high-level signal and does not output an unlock drive signal to the door lock drive device 106. When the unlock status signal is high, it indicates that the relay 104 is not controlling the door lock to unlock. The controller 102 again outputs a door lock unlock control signal to the first drive module 201 to trigger the first drive module 201 to output an unlock drive signal to the door lock drive device 106. Simultaneously, the high-level unlock status signal also triggers the first drive module 201 to output an unlock drive signal to the door lock drive device 106 to control the door lock to unlock.

[0114] In addition, when the controller 102 receives the collision signal sent by the collision triggering device 602, it can also output a window lowering control signal to the second drive module 501. When the second drive module 501 receives the window lowering control signal, it can output a window lowering drive signal to the window drive device 502 to control the window to lower.

[0115] Exemplary methods

[0116] In one exemplary embodiment of this specification, a vehicle safety control method is also provided, applied to a vehicle safety control device as described in any of the above embodiments, such as... Figure 7 As shown, the method includes the following steps performed by controller 102:

[0117] S701. Upon receiving a collision signal sent by the collision detection device 101, determine whether the door lock unlocking conditions are met, and if the door lock unlocking conditions are met, output an electrical signal to the electronic control switch 103 to control the door lock to unlock.

[0118] In one feasible implementation, it also includes:

[0119] When the door lock unlocking conditions are met, a door lock unlocking control signal is output to the first drive module 201. The first drive module 201 is used to output an unlocking drive signal to the door lock drive device 106 when it receives the door lock unlocking control signal, so as to control the door lock to unlock.

[0120] In one feasible implementation, it also includes:

[0121] The system receives the unlock status signal output by the signal detection module 301; the unlock status signal is used to indicate whether the relay 104 controls the door lock to unlock.

[0122] When the unlock status signal indicates that the relay 104 has not controlled the door lock to unlock, the door lock unlock control signal is output to the first drive module 201 again.

[0123] In one feasible implementation, determining whether the door lock unlocking conditions are met includes:

[0124] Upon receiving the collision signal, target data is acquired, and based on the target data, it is determined whether the door lock unlocking conditions are met; the target data includes at least one of vehicle speed signal, battery status signal, and body controller collision feedback signal.

[0125] In one feasible implementation, determining whether the door lock unlocking conditions are met based on the target data includes:

[0126] When the vehicle speed signal is 0, it is determined that the door lock unlocking condition is met;

[0127] When the vehicle speed signal is greater than 0 and less than or equal to the preset vehicle speed, it is determined whether the door lock unlocking conditions are met based on the battery status signal and / or the body controller collision feedback signal.

[0128] When the vehicle speed signal is greater than the preset vehicle speed, it is determined that the door lock unlocking conditions are not met.

[0129] In one feasible implementation, determining whether the door lock unlocking conditions are met based on the battery status signal and / or the body controller collision feedback signal includes:

[0130] If the battery status signal indicates that the battery is fault-free, then when the collision feedback signal from the body controller is received, it is determined that the door lock unlocking condition is met; and when the collision feedback signal from the body controller is not received, it is determined that the door lock unlocking condition is not met.

[0131] If the battery status signal indicates a battery malfunction, then the door lock unlocking condition is met.

[0132] Exemplary vehicle

[0133] In one exemplary embodiment of this specification, a vehicle is also provided, including the vehicle safety control device as described in any of the above embodiments.

[0134] Exemplary computer program products and storage media

[0135] In addition to the methods and devices described above, the vehicle safety control methods provided in the embodiments of this specification can also be computer program products, which include computer program instructions that, when executed by a processor, cause the processor to perform the steps in the vehicle safety control methods according to various embodiments of this specification as described in the "Exemplary Methods" section above.

[0136] The computer program product can be written in any combination of one or more programming languages ​​to perform the operations of the embodiments of this specification. The programming languages ​​include object-oriented programming languages ​​such as Java and C++, as well as conventional procedural programming languages ​​such as the "C" language or similar programming languages.

[0137] Furthermore, embodiments of this specification also provide a computer-readable storage medium having a computer program stored thereon, the computer program being executed by a processor of the steps in the vehicle safety control methods according to various embodiments of this specification as described in the "Exemplary Methods" section above.

[0138] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the methods described above. Any references to memory, storage, databases, or other media used in the embodiments provided in this specification can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0139] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0140] The embodiments described above are merely illustrative of several implementation methods outlined in this specification. While the descriptions are specific and detailed, they should not be construed as limiting the scope of the solutions provided in this specification. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this specification, and these all fall within the scope of protection of this specification. Therefore, the scope of protection for this patent should be determined by the appended claims.

Claims

1. A vehicle safety control device, characterized in that, include: Collision detection device, controller, electronic switch, relay and backup power supply; The collision detection device is used to detect collision signals and send them to the controller; The controller is used to determine whether the door lock unlocking conditions are met when the collision signal is received, and to control the electronic switch to be turned on when the door lock unlocking conditions are met; The electronic control switch is used to control the circuit that supplies power to the coil of the relay from the backup power supply when it is turned on. The common contact of the relay is connected to the backup power supply, and the normally open contact of the relay is connected to the door lock drive device of the vehicle. The relay is used to transmit the electrical signal output by the backup power supply to the door lock drive device when the normally open contact is closed, so as to control the door lock to unlock. Specifically, the controller is used to: upon receiving the collision signal, acquire target data and determine whether the door lock unlocking conditions are met based on the target data; the target data includes at least one of a vehicle speed signal, a battery status signal, and a body controller collision feedback signal; when the vehicle speed signal is 0, it is determined that the door lock unlocking conditions are met; when the vehicle speed signal is greater than 0 and less than or equal to a preset vehicle speed, if the battery status signal indicates that the battery is fault-free, then upon receiving the body controller collision feedback signal, it is determined that the door lock unlocking conditions are met; and when the body controller collision feedback signal is not received, it is determined that the door lock unlocking conditions are not met; if the battery status signal indicates that the battery is faulty, then it is determined that the door lock unlocking conditions are met; when the vehicle speed signal is greater than the preset vehicle speed, it is determined that the door lock unlocking conditions are not met.

2. The apparatus according to claim 1, characterized in that, It also includes a first drive module, the signal input terminal of which is connected to the controller, the signal output terminal of which is connected to the door lock drive device, and the power input terminal of which is connected to the backup power supply. The controller is also used to output a door lock unlocking control signal to the first drive module when the door lock unlocking conditions are met; The first drive module is used to output an unlock drive signal to the door lock drive device when it receives the door lock unlock control signal, so as to control the door lock to unlock.

3. The apparatus according to claim 2, characterized in that, It also includes a signal detection module, the input of which is connected to the normally open contact and / or normally closed contact of the relay, and the output of which is connected to the controller; The signal detection module is used to detect the unlocking status signal of the relay and output it to the controller; the unlocking status signal is used to indicate whether the relay controls the door lock to unlock; The controller is also configured to output the door lock unlocking control signal to the first drive module again when the unlocking status signal indicates that the relay has not controlled the door lock to unlock.

4. The apparatus according to claim 3, characterized in that, The output terminal of the signal detection module is also connected to the signal input terminal of the first driving module, and is used to output the unlock status signal to the first driving module. The unlock status signal is used to trigger the first drive module to output the unlock drive signal to the door lock drive device when the relay does not control the door lock to unlock.

5. The apparatus according to any one of claims 1 to 4, characterized in that, It also includes a second drive module, the signal input terminal of which is connected to the controller, the signal output terminal of which is connected to the window drive device, and the power input terminal of which is connected to the backup power supply. The controller is also configured to output a window lowering control signal to the second drive module when the collision signal is received; The second drive module is used to output a window lowering drive signal to the window drive device when it receives the window lowering control signal, so as to control the window to lower.

6. A vehicle safety control method, characterized in that, Applied to a vehicle safety control device as described in any one of claims 1 to 5, the method includes the following steps performed by the controller: Upon receiving a collision signal from the collision detection device, it determines whether the door lock unlocking conditions are met. If the door lock unlocking conditions are met, it outputs an electrical signal to the electronic control switch to control the door lock to unlock. Upon receiving the collision signal, target data is acquired, and based on the target data, it is determined whether the door lock unlocking conditions are met. The target data includes at least one of a vehicle speed signal, a battery status signal, and a body controller collision feedback signal. When the vehicle speed signal is 0, it is determined that the door lock unlocking conditions are met. When the vehicle speed signal is greater than 0 and less than or equal to a preset vehicle speed, if the battery status signal indicates that the battery is fault-free, then upon receiving the body controller collision feedback signal, it is determined that the door lock unlocking conditions are met; and if the body controller collision feedback signal is not received, it is determined that the door lock unlocking conditions are not met. If the battery status signal indicates that the battery is faulty, then it is determined that the door lock unlocking conditions are met. When the vehicle speed signal is greater than the preset vehicle speed, it is determined that the door lock unlocking conditions are not met.

7. A vehicle, characterized in that, include: The vehicle safety control device as described in any one of claims 1 to 5.

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