Vehicle collision unlocking device

Abstract

The utility model provides a vehicle collision unlocking device. The device comprises a collision detection module and a door lock control module, wherein the collision detection module is used for collecting collision data of a vehicle and carrying out collision analysis on the collision data; the door lock control module is used for unlocking a vehicle door lock; the collision detection module is installed on a vehicle and comprises a collision sensor used for collecting collision data and a conversion unit used for conducting collision analysis on the collision data to obtain a collision state and generating a collision electronic signal based on the collision state. The wireless communication transmitter is used for transmitting the collision electronic signal output by the collision unit; the door lock control module is connected with a vehicle door lock, the door lock control module comprises an unlocking unit used for controlling the vehicle door lock to be unlocked according to the collision electronic signal and a wireless communication receiver used for receiving the collision electronic signal, and the situation that a traditional wired communication line is prone to being damaged during vehicle collision, so that transmission of the collision signal fails is prevented through the device; therefore, the technical problem that the vehicle door cannot be unlocked after being collided is solved.

Description

Technical Field

[0001] This application relates to the field of intelligent vehicle control technology, and particularly to a vehicle collision unlocking device. Background Art

[0002] With the continuous growth of the global automobile ownership, the frequency of traffic accidents has also increased. In particular, the threat of vehicle collision accidents to the safety of occupants has become increasingly prominent. Therefore, occupant protection and the accessibility of rescue after a collision have become the focus of attention from all sectors of society. To address this challenge, the automotive industry has introduced a collision unlocking function, aiming to ensure that when a collision event occurs, the vehicle doors can be automatically unlocked so that occupants can quickly evacuate or receive external rescue.

[0003] The reliability of the collision unlocking function is directly related to the life safety of occupants. To reduce the risk of unlocking failure, intelligent connected vehicles adopt an advanced collision unlocking algorithm system. The core components of this system include a safety airbag control module, which is responsible for monitoring the real-time acceleration of the vehicle and comparing and analyzing the measured value with a preset safety threshold. Once a collision event is detected, the system will immediately determine whether to trigger the unlocking mechanism and transmit the decision result to the body control module, which is responsible for performing the unlocking operation of the vehicle doors.

[0004] Despite continuous technological progress, there are still potential risks in actual applications. For example, when the safety airbag controller issues a collision signal, it means that a collision has already occurred. During the unlocking process, problems such as communication line interruption, power supply system failure, or damage to the controller itself may be encountered, and these factors may all lead to the failure of the collision unlocking function. Summary of the Invention

[0005] In view of the above-mentioned disadvantages of the related technologies, this application provides a vehicle collision unlocking device to solve the technical problem that the vehicle cannot be unlocked when the vehicle's automatic unlocking mechanism fails.

[0006] This application provides a vehicle collision unlocking device, which includes a collision detection module for collecting collision data of the vehicle and performing collision analysis on the collision data, and a door lock control module for unlocking the vehicle door lock; the collision detection module is installed on the vehicle, and the collision detection module includes a collision sensor for collecting the collision data, a conversion unit for performing collision analysis on the collision data to obtain a collision state and generating a collision electronic signal based on the collision state, and a wireless communication transmitter for transmitting the collision electronic signal output by the conversion unit; the door lock control module is connected to the vehicle door lock, and the door lock control module includes an unlocking unit for controlling the vehicle door lock to be unlocked according to the collision electronic signal and a wireless communication receiver for receiving the collision electronic signal.

[0007] In one embodiment of the present application, the conversion unit performs a collision analysis on the collision data to obtain a collision state, and the collision state includes collided or not collided.

[0008] In one embodiment of the present application, the conversion unit includes an airbag controller, and the airbag controller is configured to obtain a collision intensity according to a preset collision analysis algorithm and the collision data, compare the collision intensity with a preset collision intensity threshold, and obtain the collision state according to the comparison result. The preset collision analysis algorithm and the preset collision intensity threshold are built into the airbag controller.

[0009] In one embodiment of the present application, the conversion unit performs a collision analysis on the collision data to obtain a collision state. If the collision state is a first collision state, the conversion unit generates the collision electronic signal; the collision detection module sends the collision electronic signal to the wireless communication receiver in the door lock control module through the wireless communication transmitter, so that the unlocking unit in the door lock control module controls the door to unlock based on the collision electronic signal; the collision intensity of the first collision state is greater than the preset collision intensity threshold.

[0010] In one embodiment of the present application, the collision detection module includes a plurality of collision sensors, and the collision sensors include an acceleration sensor for collecting acceleration change data of the vehicle and a vibration sensor for collecting vibration degree data of the vehicle.

[0011] In one embodiment of the present application, the collision detection module inputs the acceleration change data and the vibration degree data to the conversion unit to perform a collision analysis on the acceleration change data and the vibration degree data to obtain the collision state, so as to obtain the collision electronic signal based on the collision state.

[0012] In one embodiment of the present application, the conversion unit includes an acceleration logic circuit for obtaining an effective signal according to the acceleration change data and a vibration logic circuit for obtaining an effective signal according to the vibration degree data; if the outputs of the acceleration logic circuit and the vibration logic circuit are both effective signals, the collision state is collided, and the conversion unit generates the collision electronic signal.

[0013] In one embodiment of the present application, the collision detection module includes a plurality of vibration sensors, and the plurality of vibration sensors are respectively installed on both sides of the vehicle body, inside the front fender, under the headlight bracket, and on both sides of the engine radiator bracket.

[0014] In an embodiment of the present application, the wireless communication transmitter is a short-range wireless transmitter, the wireless communication receiver is a short-range receiver, and the wireless signal is a short-range wireless signal.

[0015] In an embodiment of the present application, the wireless communication transmitter is a Bluetooth transmitter, the wireless communication receiver is a Bluetooth receiver, and the wireless signal is a Bluetooth signal.

[0016] In an embodiment of the present application, the wireless communication transmitter is a WIFI transmitter, the wireless communication receiver is a WIFI receiver, and the wireless signal is a radio wave signal.

[0017] In an embodiment of the present application, the wireless communication transmitter is an IrDA transmitter, the wireless communication receiver is an IrDA receiver, and the wireless signal is an infrared signal.

[0018] In an embodiment of the present application, the door lock control module is integrated in the vehicle door lock, and the vehicle door lock is installed at the door handle.

[0019] Advantages of the present application: The embodiments of the present application provide a vehicle collision unlocking device, which includes a collision detection module for collecting collision data of the vehicle and performing collision analysis on the collision data, and a door lock control module for unlocking the vehicle door lock; the collision detection module is installed on the vehicle, and the collision detection module includes a collision sensor for collecting collision data, a conversion unit for performing collision analysis on the collision data to obtain a collision state and generating a collision electronic signal based on the collision state, and a wireless communication transmitter for sending the collision electronic signal output by the collision unit; the door lock control module is connected to the vehicle door lock, and the door lock control module includes an unlocking unit for controlling the vehicle door lock to unlock according to the collision electronic signal and a wireless communication receiver for receiving the collision electronic signal. The present application prevents the problem of collision signal transmission failure caused by the easy damage of traditional wired communication lines during vehicle collisions through short-range wireless technology, thereby greatly enhancing the stability of collision signal transmission, ensuring that the vehicle door can be unlocked in a timely manner in an emergency, and significantly improving the safety of the driver and passengers. By combining the advantages of wireless communication, the redundant design of wired communication is reduced, making the vehicle communication line more concise and reliable, and reducing the complexity of the system. In addition, the cost of short-range wireless communication is relatively low, which further reduces the vehicle maintenance and operation costs.

[0020] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. Brief Description of the Drawings

[0021] Figure 1 It is a schematic diagram of a vehicle collision unlocking device shown in an exemplary embodiment of the present application;

[0022] Figure 2 It is a schematic diagram of a vehicle collision unlocking device shown in another exemplary embodiment of the present application. Detailed implementation manners

[0023] The following uses specific specific examples to illustrate the implementation manners of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. The present application can also be implemented or applied through different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0024] It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner. Therefore, only the components related to the present application are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0025] It should be noted that in the present application, "first", "second", etc. are only used to distinguish similar objects, and are not used to limit the order or sequence of similar objects. The described "including", "having", etc. are deformed, indicating that the scope covered by the subject of this word is not exclusive except for the examples shown by this word.

[0026] It can be understood that the various digital numbers, step numbers, etc. recorded in the present application are for the convenience of description and are not used to limit the scope of the present application. The size of the labels in the present application does not mean the sequence of execution order, and the execution order of each process should be determined by its function and internal logic.

[0027] In the following description, a large number of details are discussed to provide a more thorough explanation of the embodiments of the present application. However, it is obvious to those skilled in the art that the embodiments of the present application can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present application difficult to understand.

[0028] Embodiments of the present application respectively propose a vehicle collision unlocking device, which will be described in detail below.

[0029] Please refer to Figure 1 , Figure 1 It is a schematic diagram of a vehicle collision unlocking device shown in an exemplary embodiment of the present application. As Figure 1As shown, the device includes a collision detection module 101 and a door lock control module 102. The collision detection module 101 includes a wireless communication transmitter, a conversion unit, and a collision sensor; the door lock control module 102 includes a wireless communication receiver and an unlocking unit. The wireless communication transmitter is connected to the wireless communication receiver via a wireless signal. The door lock control module is integrated into the vehicle door lock, and the unlocking unit is connected to the vehicle door lock for controlling the vehicle door lock to be unlocked.

[0030] In an embodiment of the present application, the collision sensor is used to collect collision data of the vehicle. The conversion unit includes a logic circuit for threshold comparison. The conversion unit is used to perform collision analysis on the collision data to obtain a collision state, and generate a collision electronic signal based on the collision state. The wireless communication transmitter is a short-range wireless communication transmitter for transmitting the collision electronic signal.

[0031] In an embodiment of the present application, the wireless communication receiver is a short-range wireless communication receiver for receiving the collision electronic signal. The unlocking unit is an electronically driven unit with high-speed response for driving the vehicle door lock to be unlocked according to the collision electronic signal.

[0032] In an embodiment of the present application, the vehicle collision unlocking device includes a collision detection module for collecting collision data of the vehicle and converting the collision data into a collision electronic signal, and a door lock control module for unlocking the vehicle door lock; the collision detection module is installed on the vehicle, and the collision detection module includes a collision sensor for collecting collision data, a conversion unit for performing collision analysis on the collision data to obtain a collision state, and generating a collision electronic signal based on the collision state, and a wireless communication transmitter for transmitting the collision electronic signal output by the conversion unit; the door lock control module is connected to the vehicle door lock, and the door lock control module includes an unlocking unit for controlling the vehicle door lock to be unlocked according to the collision electronic signal and a wireless communication receiver for receiving the collision electronic signal.

[0033] In an embodiment of the present application, the conversion unit includes at least two implementation manners. One is to build a logic circuit in the conversion unit to obtain a collision state by performing threshold comparison on the collision data, and thus convert the collision data into a collision electronic signal based on the collision state. The other is as Figure 2 shown, the conversion unit includes a safety airbag controller, and obtains the collision state of the collision data based on the built-in preset collision analysis algorithm and preset collision intensity threshold of the safety airbag controller, and thus converts the collision data into a collision electronic signal based on the collision state.

[0034] In an embodiment of the present application, the collision sensor inputs the collected collision data into the conversion unit. The threshold comparison logic circuit in the conversion unit performs collision analysis on the collision data to obtain the collision state. If the collision state is a collision, that is, it is determined that the vehicle has collided at this time, the conversion unit generates a collision electronic signal and sends the collision electronic signal to the door lock control module, so that the unlocking unit in the door lock control module controls the door to unlock based on the collision electronic signal. If the collision state is no collision, that is, it is determined that the vehicle has not collided at this time, the conversion unit does not generate a collision electronic signal, and there is no need to perform an emergency unlocking strategy for the door lock based on the collision electronic signal at this time.

[0035] In an embodiment of the present application, the collision detection module further includes a plurality of collision sensors. The collision sensors include an acceleration sensor for collecting the acceleration change data of the vehicle and a vibration sensor for collecting the vibration degree data of the vehicle; the collision detection module obtains a collision electronic signal by passing the acceleration change data and the vibration degree data through the conversion unit.

[0036] In an embodiment of the present application, the collision detection module obtaining a collision electronic signal by passing the acceleration change data and the vibration degree data through the conversion unit includes: the conversion unit includes an acceleration logic circuit for obtaining a valid signal according to the acceleration change data and a vibration logic circuit for obtaining a valid signal according to the vibration degree data; if the outputs of both the acceleration logic circuit and the vibration logic circuit are valid signals, the collision state is a collision, and the conversion unit generates a collision electronic signal.

[0037] In an embodiment of the present application, the judgment logic of the acceleration logic circuit is: if the acceleration change data is greater than the preset acceleration threshold, the acceleration logic circuit outputs a valid signal (which can be a high level); if the acceleration change data is less than or equal to the preset acceleration threshold, the acceleration logic circuit outputs an invalid signal (which can be a low level).

[0038] In an embodiment of the present application, the judgment logic of the vibration logic circuit is: if the vibration degree data is greater than the preset vibration threshold, the vibration logic circuit outputs a valid signal (which can be a high level); if the vibration degree data is less than or equal to the preset acceleration threshold, the vibration logic circuit outputs an invalid signal (which can be a low level).

[0039] In an embodiment of the present application, the judgment logic of the conversion unit is: if the outputs of both the acceleration logic circuit and the vibration logic circuit are valid signals, it is determined that the collision state is a collision at this time (that is, it is determined that the vehicle has collided at this time), and a collision electronic signal is generated.

[0040] In an embodiment of the present application, the valid signal may be a high-level signal, and the invalid signal may be a low-level signal. However, the level type of the valid signal does not limit the scope of the present application. The level type of the valid signal can be changed by customizing the system settings. That is, the low level can be set as the valid signal, and the high level can be set as the invalid signal through settings. The valid signal in this embodiment represents the signal sent when it is determined that a collision may occur when the detected acceleration or vibration level exceeds the preset threshold. The invalid signal in this embodiment represents the signal sent when it is determined that a collision may not occur when the detected acceleration or vibration level does not exceed the preset threshold.

[0041] In an embodiment of the present application, the collision data output by the collision sensor is used to obtain the collision state through a conversion unit that can perform threshold comparison. When the collision state is a collision, the conversion unit generates a collision electronic signal; otherwise, no collision electronic signal is generated. When the collision electronic signal is generated, the collision detection module sends the collision electronic signal to the door lock control module through the wireless signal between the wireless communication transmitter and the wireless communication receiver.

[0042] Please refer to Figure 2 , Figure 2 FIG. is a schematic diagram of a vehicle collision unlocking device shown in another exemplary embodiment of the present application. In another embodiment of the present application, the vehicle collision unlocking device includes a collision sensor, a wireless communication transmitter, a safety airbag controller ABM, and a door lock control module. In this embodiment, the conversion unit includes the safety airbag controller. The safety airbag controller is used to perform collision analysis on the collision data collected by the collision sensor to obtain the collision state, thereby generating a collision electronic signal based on the collision state, and sending the collision electronic signal to the wireless communication receiver of the door lock control module through the wireless communication transmitter installed on the safety airbag controller ABM.

[0043] It should be noted that the safety airbag controller performs logical judgment on the collision data according to the preset collision analysis algorithm and the preset intensity threshold. These preset collision analysis algorithms and preset intensity thresholds are usually obtained based on a large amount of collision test data and occupant protection calibrations to ensure that the safety airbag is triggered at an appropriate time. The preset intensity threshold of the safety airbag controller refers to the conditions or criteria required to trigger the safety airbag. The setting of the preset intensity threshold is usually considered from the following aspects: collision intensity, which is judged by measuring parameters such as acceleration and speed change during the collision. Generally, the safety airbag will only be triggered when the collision intensity reaches a certain level. Collision type, different types of collisions (such as frontal collision, side collision, rollover, etc.) have different degrees of harm to the occupants, so different thresholds need to be set to adapt to different collision types.

[0044] In an embodiment of the present application, it is determined whether the collision state is the first collision state based on whether the airbag controller issues an ignition command: If the airbag controller analyzes that the current collision data has met the airbag deployment condition and issues an ignition command based on a preset collision analysis algorithm and a preset intensity threshold, that is, the current collision intensity is greater than the preset collision intensity threshold, it is determined that the current collision state is the first collision state, that is, it is considered that a collision exceeding the preset intensity threshold has occurred. At the same time, a collision electronic signal is sent to the wireless communication receiver of the door lock control module through the wireless communication transmitter, so that the unlocking unit controls the door lock to unlock based on the collision electronic signal.

[0045] In an embodiment of the present application, the conversion unit includes an airbag controller. The airbag controller is used to obtain the collision intensity according to a preset collision analysis algorithm and collision data, compare the collision intensity with a preset collision intensity threshold, and obtain the collision state according to the comparison result. The preset collision analysis algorithm and the preset collision intensity threshold are built into the airbag controller.

[0046] In an embodiment of the present application, the conversion unit performs a collision analysis on the collision data to obtain the collision state. If the collision state is the first collision state, the conversion unit generates a collision electronic signal; the collision detection module sends the collision electronic signal to the wireless communication receiver in the door lock control module through the wireless communication transmitter, so that the unlocking unit in the door lock control module controls the door to unlock based on the collision electronic signal; the collision intensity of the first collision state is greater than the preset collision intensity threshold.

[0047] In an embodiment of the present application, a highly sensitive collision sensor can be selected to accurately collect collision data.

[0048] In an embodiment of the present application, the collision detection module includes multiple collision sensors. The collision sensors include an acceleration sensor for collecting the acceleration change data of the vehicle and a vibration sensor for collecting the vibration degree data of the vehicle. The collision data at least includes the acceleration change data and the vibration degree data.

[0049] In an embodiment of the present application, a highly sensitive collision sensor can be integrated in the collision detection module to collect the collision data of the vehicle. The collision data is converted into a collision electronic signal by the conversion unit inside the collision detection module, and the collision electronic signal is sent to the wireless communication receiver in the door lock control module through the wireless communication transmitter integrated in the collision detection module.

[0050] In one embodiment of the present application, the collision detection module may be provided with six vibration sensors, which are respectively installed on both sides of the vehicle body, inside the front fender, under the headlight bracket, and on the left and right sides of the engine radiator bracket. In this embodiment, one vibration sensor is installed at each of the above positions, and the vibration sensor is connected to the conversion unit in the collision detection module, so as to send the acquisition result of the collision data to the conversion unit to obtain a collision electronic signal.

[0051] In one embodiment of the present application, the collision detection module may be provided with seven vibration sensors, which are respectively installed on both sides of the vehicle body, inside the front fender, under the headlight bracket, on the left and right sides of the engine radiator bracket, and under the cab instrument panel. In this embodiment, one vibration sensor is installed at each of the above positions. In this embodiment, one vibration sensor is installed at each of the above positions, and the vibration sensor is connected to the conversion unit in the collision detection module, so as to send the acquisition result of the collision data to the conversion unit to obtain a collision electronic signal.

[0052] In one embodiment of the present application, the wireless communication transmitter is a short-range wireless transmitter, the wireless communication receiver is a short-range receiver, and the wireless signal is a short-range wireless signal.

[0053] In one embodiment of the present application, the wireless communication transmitter is a Bluetooth transmitter, the wireless communication receiver is a Bluetooth receiver, and the wireless signal is a Bluetooth signal.

[0054] In one embodiment of the present application, the wireless communication transmitter is a WIFI transmitter, the wireless communication receiver is a WIFI receiver, and the wireless signal is a radio wave signal.

[0055] In one embodiment of the present application, the wireless communication transmitter is an IrDA transmitter, the wireless communication receiver is an IrDA receiver, and the wireless signal is an infrared signal.

[0056] In one embodiment of the present application, the short-range wireless communication technology is used to replace the traditional physical line communication, thereby reducing the risk of unlocking failure caused by line damage, and improving the system response and flexibility.

[0057] In one embodiment of the present application, the door lock control module is integrated in the door lock, and the door lock is installed at the door handle.

[0058] In one embodiment of the present application, the unlocking unit adopts high-speed electronic drive, so as to ensure that the door lock can be unlocked in the shortest time, providing an emergency escape opportunity for the driver and passengers.

[0059] The above embodiments are only illustrative of the principles and effects of the present application and are not intended to limit the present application. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. A vehicle collision unlocking device, characterized in that: The vehicle collision unlocking device includes a collision detection module for collecting collision data of the vehicle and performing collision analysis on the collision data, and a door lock control module for unlocking the vehicle door lock; The collision detection module is installed on the vehicle and includes a collision sensor for collecting the collision data, a conversion unit for performing collision analysis on the collision data to obtain a collision status and generating a collision electronic signal based on the collision status, and a wireless communication transmitter for transmitting the collision electronic signal output by the conversion unit. The conversion unit includes an airbag controller, the airbag controller being configured to obtain a collision intensity based on a preset collision analysis algorithm and the collision data, compare the collision intensity with a preset collision intensity threshold, and obtain the collision status based on the comparison result. The preset collision analysis algorithm and the preset collision intensity threshold are built into the airbag controller. The door lock control module is connected to the vehicle door lock, and includes an unlocking unit for controlling the vehicle door lock to unlock according to the collision electronic signal and a wireless communication receiver for receiving the collision electronic signal.

2. The vehicle collision unlocking device according to claim 1, characterized in that: The conversion unit performs collision analysis on the collision data to obtain a collision state, where the collision state includes collision or non-collision.

3. The vehicle collision unlocking device according to claim 1, characterized in that: The conversion unit performs collision analysis on the collision data to obtain a collision state, and if the collision state is a first collision state, the conversion unit generates the collision electronic signal; The collision detection module transmits the collision electronic signal to the wireless communication receiver in the door lock control module via the wireless communication transmitter, so that the unlocking unit in the door lock control module controls the vehicle door to be unlocked based on the collision electronic signal; The collision intensity of the first collision state is greater than the preset collision intensity threshold.

4. The vehicle collision unlocking device according to claim 3, characterized in that: The collision detection module includes a plurality of collision sensors, and the collision sensors include an acceleration sensor for collecting acceleration change data of the vehicle and a vibration sensor for collecting vibration degree data of the vehicle.

5. The vehicle collision unlocking device according to claim 4, characterized in that: The collision detection module inputs the acceleration change data and the vibration degree data to the conversion unit to perform collision analysis on the acceleration change data and the vibration degree data to obtain the collision state, so as to obtain the collision electronic signal based on the collision state.

6. The vehicle collision unlocking device according to claim 5, characterized in that: The conversion unit includes an acceleration logic circuit for obtaining a valid signal based on the acceleration change data and a vibration logic circuit for obtaining a valid signal based on the vibration degree data; if the outputs of the acceleration logic circuit and the vibration logic circuit are both valid signals, the collision state is collision, and the conversion unit generates the collision electronic signal.

7. The vehicle collision unlocking device according to claim 6, characterized in that: The collision detection module includes a plurality of vibration sensors, which are respectively installed on both sides of the vehicle body, the inner side of the front fender, under the headlamp bracket, and on the left and right sides of the engine radiator bracket.

8. The vehicle collision unlocking device according to claim 1, characterized in that: The wireless communication transmitter is a short-range wireless transmitter, the wireless communication receiver is a short-range receiver, and the wireless signal between the wireless communication transmitter and the wireless communication receiver is a short-range wireless signal.

9. The vehicle collision unlocking device according to claim 1, characterized in that: The door lock control module is integrated into a vehicle door lock, and the vehicle door lock is installed at a vehicle door handle.

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