Airbag igniter chip, electronic product and vehicle

Abstract

The application relates to a safety air bag ignition chip, an electronic product and a vehicle. The safety air bag ignition chip comprises a power management module, an air bag control module and a door and window control module. The power management module is used for connecting an external main power supply and an ignition power supply; the main power supply is connected with the door and window control module through the power management module and is used for supplying power to the door and window control module; the ignition power supply is externally connected with a capacitor, the power management module is used for controlling the main power supply to charge the ignition power supply and the capacitor; the ignition power supply is connected with the air bag control module and is used for supplying power to the air bag control module; the power management module is further used for controlling the door and window control module to be connected with the ignition power supply when the main power supply is under-voltage, the capacitor discharges to the ignition power supply, so that the ignition power supply supplies power to the air bag control module and the door and window control module. The safety air bag ignition chip can ensure normal power supply of the safety air bag, the window and the door lock when the vehicle collides, and the safety of the vehicle is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle control technology, and in particular to an airbag ignition chip, electronic products, and vehicles. Background Technology

[0002] With the steady development of vehicle electronic technology, vehicle safety issues have become increasingly prominent. Although airbags can effectively deploy during a collision and protect occupants to some extent, current vehicle safety systems typically separate airbag ignition control and window / door lock control into two independent units. During a collision, the window / door lock control unit is prone to power failure, which can cause the vehicle's windows and doors to lock, preventing occupants from escaping even if the airbags deploy effectively.

[0003] Therefore, ensuring that airbags deploy, windows lower, and door locks unlock in the event of a vehicle collision to improve vehicle safety is a problem that needs to be solved. Summary of the Invention

[0004] Therefore, it is necessary to provide an airbag ignition chip, electronic product, and vehicle to address the aforementioned technical problems and improve vehicle safety in the event of a collision.

[0005] In a first aspect, this application provides an airbag ignition chip, which includes a power management module, an airbag control module, and a door and window control module, wherein...

[0006] The power management module is used to connect to the external main power supply and ignition power supply;

[0007] The main power supply is connected to the door and window control module through the power management module, and is used to supply power to the door and window control module.

[0008] The ignition power supply is connected to an external capacitor, and the power management module is used to control the main power supply to charge the ignition power supply and the capacitor.

[0009] The ignition power supply is connected to the airbag control module and is used to supply power to the airbag control module;

[0010] The power management module is also used to control the connection between the door and window control module and the ignition power supply when the main power supply is undervoltage, and the capacitor discharges to the ignition power supply so that the ignition power supply supplies power to the airbag control module and the door and window control module.

[0011] In one embodiment, the power management module includes a first voltage detection unit and a second voltage detection unit;

[0012] The first voltage detection unit is connected to the main power supply and is used to detect the supply voltage of the main power supply and determine whether the main power supply is undervoltage based on the supply voltage.

[0013] The second voltage detection unit is connected to the ignition power supply and is used to detect the discharge voltage of the capacitor to the ignition power supply when the discharge circuit is connected to the ignition power supply.

[0014] In one embodiment, the power management module further includes: a discharge circuit, one end of which is connectable to the ignition power supply and the other end of which is grounded;

[0015] The discharge circuit is used to conduct to the ignition power supply at the preset frequency after the charging voltage of the ignition power supply reaches the preset voltage, so that the capacitor discharges to the ignition power supply through the discharge circuit.

[0016] In one embodiment, the power management module further includes:

[0017] The power control unit is connected to the main power supply, the ignition power supply and the discharge circuit respectively. It is used to control the main power supply to charge the ignition power supply and the capacitor, and after the charging voltage of the ignition power supply reaches the preset voltage, it controls the ignition power supply and the discharge circuit to conduct at the preset frequency.

[0018] The power control unit is also connected to the second voltage detection unit and is used to send a detection command to the second voltage detection unit when the ignition power supply is connected to the discharge circuit, so that the second voltage detection unit can detect the discharge voltage of the capacitor to the ignition power supply based on the detection command.

[0019] In one embodiment, the discharge circuit includes a plurality of discharge resistors, and the power control unit is specifically used to control the number of discharge resistors in the discharge circuit that are connected to the ignition power supply, so that the capacitor discharges to the ignition power supply with different discharge currents.

[0020] In one embodiment, the power management module further includes: an ignition backup power supply connected to the power control unit;

[0021] The power control unit is also used to control the main power supply to charge the ignition backup power supply, receive the discharge voltage fed back by the second voltage detection unit, and control the ignition backup power supply to connect with the ignition power supply when the discharge voltage is less than the undervoltage threshold, so that the ignition backup power supply supplies power to the ignition power supply.

[0022] In one embodiment, the airbag ignition chip further includes a communication processing module, which is connected to the external sensor, the airbag control module, and the door and window control module, respectively.

[0023] The communication processing module is used to generate a first trigger signal based on the sensing signal sent by the external sensor, and transmit the first trigger signal to the airbag control module and the door and window control module respectively, so that the airbag control module controls the airbag to ignite based on the first trigger signal, and the door and window control module controls the vehicle doors and windows to unlock based on the first trigger signal.

[0024] In one embodiment, the communication processing module is also connected to an external control module;

[0025] The external control module is used to receive control signals from the user for the doors and windows, and transmit the control signals to the communication processing module;

[0026] The communication processing module is used to generate a second trigger signal based on the control signal, transmit the second trigger signal to the door and window control module, and enable the door and window control module to control the locking or unlocking of the vehicle doors and windows based on the second trigger signal.

[0027] Secondly, this application also provides an electronic product, which is installed in a vehicle, and the electronic product includes:

[0028] The system includes a main power supply, an ignition power supply, a capacitor, a sensor, and an airbag ignition chip as described in any of the first aspects above. The airbag ignition chip is used to receive a sensing signal emitted by the sensor and control the ignition of the airbag in the vehicle and the operation of the vehicle doors and windows based on the sensing signal.

[0029] Thirdly, this application also provides a vehicle including an airbag ignition chip as described in any of the first aspects above or an electronic product as described in the second aspect above.

[0030] Compared with related technologies, the airbag ignition chip provided in this embodiment ensures that during normal vehicle operation, the main power supply provides power to the ignition power supply and capacitor through the power management module in the airbag ignition chip, effectively ensuring the normal operation of the ignition power supply and the energy storage of the capacitor. Furthermore, in the event of a collision, the power management module switches the power supply of the window and door control module to the ignition power supply, thereby effectively utilizing the discharge function of the capacitor to provide power to the ignition power supply, which in turn powers the window and door control module and the airbag control module. This ensures the normal operation of the window and door control module and the airbag control module even if the main power supply fails, preventing the windows and door locks from locking due to power failure of the window and door lock control modules, thus effectively improving vehicle safety. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of an airbag ignition chip provided in an embodiment of this application;

[0033] Figure 2 This is a schematic diagram of the structure of the second type of airbag ignition chip provided in the embodiments of this application;

[0034] Figure 3 This is a schematic diagram of the structure of a power management module provided in an embodiment of this application;

[0035] Figure 4 This is a schematic diagram of the structure of the second power management module provided in the embodiments of this application;

[0036] Figure 5 This is a schematic diagram of the third type of airbag ignition chip structure provided in the embodiments of this application;

[0037] Figure 6 This is a schematic diagram of an electronic product structure provided in an embodiment of this application. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0039] It should be noted that the terms "first," "second," etc., used in this application can be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from the second element. The terms "comprising" and "having," and any variations thereof, used in this application, are intended to cover non-exclusive inclusion. The term "multiple" used in this application refers to two or more. The term "and / or" used in this application refers to one of the embodiments, or any combination of multiple embodiments.

[0040] This application provides an airbag ignition chip. Figure 1 This is a schematic diagram of the structure of an airbag ignition chip provided in an embodiment of this application. The airbag ignition chip 100 can be a separate integrated circuit chip. Figure 1 As shown, the airbag ignition chip 100 includes a power management module 101, an airbag control module 102, and a door and window control module 103.

[0041] The power management module 101 can be connected to both the external main power supply 200 and the ignition power supply 300. For example... Figure 1 As shown, during normal vehicle operation, the main power supply 200 is connected to the door and window control module 103 through the power management module 101, and the power management module 101 supplies power to the door and window control module 103.

[0042] As an example, the main power supply 200 can be the power generated by the vehicle's power supply battery.

[0043] The ignition power supply 300 can be connected to an external capacitor 400. The power management module 101 can also control the main power supply 200 to charge the ignition power supply 300 and the capacitor 400 respectively, thereby realizing the effective power supply of the ignition power supply 300 and the energy storage of the capacitor 400.

[0044] As an example, the ignition power supply 300 can be an energy storage power supply. Furthermore, the ignition power supply 300 is connected to the airbag control module 102, thus enabling power supply to the airbag control module 102 via the ignition power supply 300. This achieves the goal of supplying power to the door and window control module 103 via the main power supply 200 and to the airbag control module 102 via the ignition power supply 300 during normal vehicle operation.

[0045] The power management module 101 is also used to control the connection between the door and window control module 103 and the ignition power supply 300 when the main power supply 200 is undervoltage, and the capacitor 400 discharges to the ignition power supply 300 so that the ignition power supply 300 supplies power to the airbag control module 102 and the door and window control module 103.

[0046] Specifically, when a collision or other unexpected event occurs, the main power supply 200 may experience undervoltage, preventing it from supplying power to the ignition power supply 300 and the window and door control module 103. In this situation, the power management module 101 can switch the power supply of the window and door control module 103 to the ignition power supply 300. During normal vehicle operation, the main power supply 200 charges the capacitor 400. When the main power supply 200 experiences undervoltage, the capacitor 400 can discharge in reverse to the ignition power supply 300, restoring it to a normal state. Furthermore, the ignition power supply 300 can then supply power to the airbag control module 102 and the window and door control module 103. This ensures that the airbag control module 102 can properly control the deployment of the airbag 500, and that the window and door control module 103 can properly control the operation of the vehicle's doors and windows. Furthermore, integrating the airbag control module 102 and the door and window control module 103 onto a single chip can effectively reduce the space occupied by the airbag control module 102 and the door and window control module 103 as separate chips.

[0047] In the above implementation process, during normal vehicle operation, the main power supply charges the ignition power supply and capacitor through the power management module in the airbag ignition chip, effectively ensuring the normal operation of the ignition power supply and the energy storage of the capacitor. In the event of a collision, the power management module switches the power supply of the door and window control module to the ignition power supply, thereby effectively utilizing the discharge function of the capacitor to provide power to the ignition power supply, and then powering the door and window control module and the airbag control module. This ensures the normal operation of the door and window control module and the airbag control module when the main power supply fails, and avoids the vehicle's windows and door locks from locking due to power failure of the window and door lock control module, effectively improving vehicle safety.

[0048] In some embodiments, the power management module 101 includes a first voltage detection unit and a second voltage detection unit. The first voltage detection unit is connected to the main power supply 200 and is used to detect the supply voltage of the main power supply 200 and determine whether the main power supply 200 is undervoltage based on the supply voltage. The second voltage detection unit is connected to the ignition power supply 300 and is used to detect the discharge voltage of the capacitor 400 to the ignition power supply 300 when the discharge circuit is connected to the ignition power supply 300.

[0049] For example, Figure 2 This is a schematic diagram of the structure of the second type of airbag ignition chip provided in the embodiments of this application, as shown below. Figure 2 As shown, the power management module 101 may also include a first voltage detection unit 1011 and a second voltage detection unit 1012.

[0050] The first voltage detection unit 1011 is connected to the main power supply 200 and monitors the supply voltage of the main power supply 200 in real time, thereby determining the status of the main power supply by the magnitude of the supply voltage. In the event of an accident such as a vehicle collision, the main power supply may experience undervoltage. Specifically, whether the main power supply is undervoltage can be determined by the difference between the supply voltage and a first undervoltage threshold. For example, when the supply voltage is lower than the first undervoltage threshold, the main power supply is undervoltage; when the supply voltage is greater than or equal to the first undervoltage threshold, the main power supply is not undervoltage, thus determining whether the main power supply is undervoltage.

[0051] Furthermore, the capacitor state can be determined through the second voltage detection unit 1012. Specifically, the second voltage detection unit 1012 is connected to the ignition power supply 300. During normal vehicle operation, when the discharge circuit is connected to the ignition power supply 300, the second voltage detection unit 1012 can detect the discharge voltage of the capacitor 400 to the ignition power supply 300.

[0052] As an example, when the charging voltage of the main power supply 200 to the ignition power supply 300 reaches the preset voltage, the discharge circuit is connected to the ignition power supply 300. Since the discharge circuit is grounded, the capacitor 400 discharges to the ignition power supply 300. The second voltage detection unit 1012 can detect the discharge voltage of the capacitor 400 to the ignition power supply 300. When the discharge voltage is lower than the second undervoltage threshold, it may be that the capacitor's energy is too low or the capacitor is disconnected from the ignition power supply. At this time, the ignition power supply may not be able to supply power to the airbag control module 102 and the door and window control module 103 normally. Further, a warning message can be issued, and the backup power supply can be switched to ensure the normal power supply of the ignition power supply when the vehicle is in a collision. When the discharge voltage is greater than or equal to the second undervoltage threshold, the capacitor is in normal condition and is normally connected to the ignition power supply. The ignition power supply can supply power to the airbag control module 102 and the door and window control module 103 normally.

[0053] It should be noted that the first undervoltage threshold and the second undervoltage threshold can be the same or different, and the values ​​of the first undervoltage threshold and the second undervoltage threshold can be set adaptively according to the actual situation, without any restrictions here.

[0054] In the above implementation process, the first voltage detection unit in the power management module can determine the main power supply voltage status, thereby facilitating the switching of the power supply to the door and window control module when the main power supply voltage is low. The second voltage detection unit in the power management module can detect the ignition power supply status of the capacitor under normal vehicle conditions, thereby preventing the ignition power supply from failing in the event of a collision.

[0055] In some embodiments, the power management module may further include: a discharge circuit, one end of which is connected to the ignition power supply and the other end of which is grounded; and a discharge circuit used to conduct to the ignition power supply at a preset frequency after the charging voltage of the ignition power supply reaches a preset voltage, so that the capacitor discharges to the ignition power supply through the discharge circuit.

[0056] For example, such as Figure 3 As shown, Figure 3 This is a schematic diagram of a power management module provided in an embodiment of this application. The power management module 101 may further include a discharge circuit 101a, one end of which is connectable to the ignition power supply 300, and the other end is grounded. When the charging voltage of the capacitor 400 to the ignition power supply 300 reaches a preset voltage, the discharge circuit 101a is connected to the ignition power supply 300 at a preset frequency. At this time, the ignition power supply 300 is grounded through the discharge circuit 101a, and the capacitor 400 can discharge to the ignition power supply 300.

[0057] In the above implementation process, a discharge circuit is set in the power management module, and one end of the discharge circuit is connected to the ignition power supply while the other end is grounded. This allows the capacitor to discharge to the ignition power supply through the grounded discharge circuit when the charging voltage of the ignition power supply reaches the preset voltage, further facilitating the second detection unit to detect the discharge voltage of the ignition power supply during the discharge process of the capacitor to the ignition power supply.

[0058] In some embodiments, the power management module 101 further includes:

[0059] The power control unit is connected to the main power supply 200, the ignition power supply 300 and the discharge circuit 101a respectively. It is used to control the main power supply 200 to charge the ignition power supply 300 and the capacitor 400, and after the charging voltage of the ignition power supply reaches the preset voltage, it controls the ignition power supply 300 and the discharge circuit 101a to conduct at a preset frequency.

[0060] The power control unit is also connected to the second voltage detection unit, which sends a detection command to the second voltage detection unit when the ignition power supply 300 and the discharge circuit 101a are turned on, so that the second voltage detection unit can detect the discharge voltage of the capacitor 400 to the ignition power supply 300.

[0061] For example, the power management module 101 may further include a power control unit, which is connected to the main power supply 200, the ignition power supply 300, and the discharge circuit 101a. When the vehicle is started or when a maintenance personnel trigger a maintenance command, the power control unit controls the main power supply 200 to charge the ignition power supply 300 and the capacitor 400. As an example, the power control unit can control the charging current in different levels, for example, the charging current can be divided into five levels: 25mA / 50mA / 75mA / 100mA / 125mA, and the charging time can be from 5ms to 180ms, thereby realizing the leveled control of the ignition power supply by the main power supply under different states.

[0062] Furthermore, after the charging voltage of the ignition power supply 300 reaches the preset voltage, the power control unit controls the ignition power supply 300 to conduct with the discharge circuit 101a at a preset frequency. As an example, the preset frequency can be every 5 minutes, every 10 minutes, or other time frequencies. Users can adaptively set the preset frequency, and there are no restrictions here.

[0063] If the charging voltage of the ignition power supply 300 is less than the preset voltage, the power control unit will not control the ignition power supply 300 to conduct with the discharge circuit 101a until the charging voltage of the ignition power supply 300 reaches the preset voltage, thereby ensuring that the ignition power supply performs capacitor charging status detection when the power supply is fully charged.

[0064] The power control unit is also connected to the second voltage detection unit 1012. When the ignition power supply 300 is connected to the discharge circuit 101a, the power control unit also sends a detection command to the second voltage detection unit 1012, so that the second voltage detection unit detects the discharge voltage of the capacitor 400 to the ignition power supply 300 according to the detection command.

[0065] In the above implementation process, a power control unit is set in the power management module to control the ignition power supply and the discharge circuit to switch on and off at a preset frequency. When the ignition power supply and the discharge circuit are on, a detection command is sent to the second voltage detection unit, so that the second detection unit can detect the discharge voltage of the capacitor to the ignition power supply according to the detection command.

[0066] In some embodiments, the discharge circuit includes multiple discharge resistors, and the power control unit is specifically used to control the number of discharge resistors in the discharge circuit that are connected to the ignition power supply, so that the capacitor discharges to the ignition power supply with different discharge currents.

[0067] For example, the discharge circuit may include multiple discharge resistors, each with a different resistance value. The power control unit can control different numbers of discharge resistors to conduct with the ignition power supply, thereby enabling the capacitor to discharge the ignition power supply with different discharge currents.

[0068] Specifically, such as Figure 3 As shown, the discharge circuit can include three discharge resistors R1, R2, and R3, and three corresponding switches S1, S2, and S3. Under normal conditions, all three switches are open (S1 down, S2 up, and S3 up). When the charging voltage of the ignition power supply reaches the preset voltage, only S1 is closed (S1 up, S2 up, and S3 up). At this time, the current flows through R1, R2, and R3, resulting in the minimum discharge current and the longest discharge time. To change the discharge current and control the capacitor's discharge time, S1 and S2 can be closed (S1 up, S2 down, and S3 up), allowing the current to flow through R1 and R3. Conversely, S1 and S3 can be closed (S1 up, S2 up, and S3 down), allowing the current to flow through R1 and R2. Since the resistance values ​​of the three discharge resistors R1, R2, and R3 are different, different numbers of discharge resistors can be connected to the ignition power supply, thus enabling the capacitor to discharge the ignition power supply with different discharge currents. Therefore, when the vehicle is off, to prevent the airbag from being falsely triggered due to a charged capacitor, the closing of S1 and S2, or S1 and S3, can be switched to achieve faster capacitor discharge. As an example, by connecting different discharge resistors to the ignition power supply, the capacitor discharge time range can be controlled within 6ms to 1200ms, or within 20ms to 200ms, or other time ranges, which are not limited here.

[0069] In the above implementation process, by setting the discharge circuit to multiple discharge resistors with different resistance values, the power control unit can control different numbers of discharge resistors to conduct with the ignition power supply, thereby enabling the capacitor to discharge the ignition power supply with different discharge currents.

[0070] In some embodiments, the power management module further includes: an ignition backup power supply connected to the power control unit; the power control unit is also used to control the main power supply to charge the ignition backup power supply, receive the discharge voltage fed back by the second voltage detection unit, and control the ignition backup power supply to connect to the ignition power supply when the discharge voltage is less than the undervoltage threshold, so that the ignition backup power supply supplies power to the ignition power supply.

[0071] For example, Figure 4 This is a schematic diagram of the structure of the second power management module provided in the embodiments of this application, as shown below. Figure 4 As shown, in addition to the power control unit 1013, the power management module may also include an ignition backup power supply 1014, which is connected to the power control unit 1013.

[0072] When the second voltage detection unit 1012 detects the discharge voltage, it feeds the discharge voltage back to the power control unit 1013. After receiving the discharge voltage, the power control unit 1013 compares the discharge voltage with the undervoltage threshold in real time. This undervoltage threshold is the second undervoltage threshold. If the discharge voltage is less than the second undervoltage threshold, the power control unit 1013 controls the ignition backup power supply 1014 to connect to the ignition power supply 300 so that the ignition backup power supply 1014 supplies power to the ignition power supply 300.

[0073] In the above implementation process, a redundant ignition backup power supply is set in the power management module. When the discharge voltage detected by the second voltage detection unit is less than the undervoltage threshold, it indicates that the capacitor is disconnected from the ignition power supply or the capacitor is not charged enough. Thus, the power control unit controls the ignition backup power supply to connect to the ignition power supply, ensuring that after the vehicle malfunctions and the capacitor is disconnected from the ignition power supply, the ignition backup power supply can provide power to the ignition power supply, further ensuring the normal power supply of the airbag control module and the door and window control module.

[0074] In some embodiments, the airbag ignition chip 100 further includes a communication processing module, which is connected to the external sensors, the airbag control module 102, and the door and window control module 103, respectively.

[0075] The communication processing module is used to generate a first trigger signal based on the sensing signal sent by the external sensor, and transmit the first trigger signal to the airbag control module 102 and the door and window control module 103 respectively, so that the airbag control module 102 controls the airbag 500 to ignite based on the first trigger signal, and the door and window control module 103 controls the vehicle door and window 600 to unlock based on the first trigger signal.

[0076] For example, Figure 5 This is a schematic diagram of the third type of airbag ignition chip structure provided in the embodiments of this application, as shown below. Figure 5 As shown, the communication processing module 104 is connected to the external sensor 700, airbag control module 102, and door and window control module 103. The sensor 700 can acquire the vehicle's running acceleration in real time and generate a sensing signal based on the acceleration. The sensor signal is then sent to the communication processing module 104. The communication processing module 104 determines the magnitude of the acceleration in the received sensing signal compared to a preset acceleration threshold. When the acceleration is greater than the preset acceleration threshold, the communication processing module 104 generates a first trigger signal and transmits it to the airbag control module 102 and the door and window control module 103, respectively. This causes the airbag control module 102 to ignite the airbag 500 based on the first trigger signal, and the door and window control module 103 to unlock the vehicle's doors and windows 600 based on the first trigger signal.

[0077] In the above implementation process, the communication processing module generates a first trigger signal based on the sensor's sensing signal, and sends the first trigger signal to the airbag control module and the door and window control module respectively, so that the airbag control module controls the airbag according to the first trigger signal, and the door and window control module controls the vehicle's doors and windows according to the first trigger signal, thus realizing the triggering of the airbag and the vehicle's doors and windows.

[0078] In some embodiments, the communication processing module is also connected to an external control module.

[0079] The external control module is used to receive user control signals for doors and windows and transmit the control signals to the communication processing module.

[0080] The communication processing module is used to generate a second trigger signal based on the control signal, transmit the second trigger signal to the door and window control module 103, and enable the door and window control module 103 to control the locking or unlocking of the vehicle doors and windows 600 based on the second trigger signal.

[0081] For example, the communication processing module 104 can also be connected to an external control module, which can be a vehicle button or a central control screen. During normal vehicle operation, the user inside the vehicle can trigger the button or central control screen to generate control signals to the vehicle doors and windows. Furthermore, the external control module receives the user's control signals and transmits the control signals to the communication processing module.

[0082] Furthermore, the communication processing module 104 generates a second trigger signal based on the control signal and transmits the second trigger signal to the door and window control module 103 through the communication bus, and enables the door and window control module 103 to control the locking or unlocking of the vehicle doors and windows 600 based on the second trigger signal, thereby realizing the user's control of the vehicle doors and windows during normal vehicle operation.

[0083] In the above implementation process, the communication processing module is connected to the external control module, so that the communication processing module can receive the user's control signals for the doors and windows during normal vehicle operation, and realize the user's control of the vehicle's doors and windows according to the control signals.

[0084] In some embodiments, the communication processing module can also be connected to the power control module. When the discharge voltage is less than the second undervoltage threshold, the power control module sends a warning message to the communication processing module. Furthermore, the communication processing module sends the warning message to the vehicle control center through the communication bus, thereby reminding maintenance personnel or the driver that the discharge process of capacitor 400 to ignition power supply 300 is abnormal and needs to be repaired in time to ensure the normal operation of ignition power supply 300 in the event of a collision.

[0085] In some embodiments, the door and window control module 103 includes a door control unit and a window control unit.

[0086] The door control unit is connected to the vehicle door lock and is used to control the locking and unlocking of the vehicle door lock.

[0087] The window control unit is connected to the window and is used to control the raising and lowering of the window.

[0088] For example, the door and window control module 103 also includes a door control unit and a window control unit, which are used to control the vehicle door locks and windows, respectively. Specifically, the door control unit is connected to the vehicle door lock. When the door control unit receives a door lock trigger signal, it controls the locking and unlocking of the vehicle door lock according to the door lock trigger signal. The window control unit is connected to the window. When the window control unit receives a window trigger signal, it controls the window to rise and fall according to the window trigger signal.

[0089] In the above implementation process, a door control unit and a window control unit are set in the door and window control module, so that the door control unit can control the vehicle door lock and the window control unit can control the window, thus realizing the separate control of the vehicle door lock and the window.

[0090] In some embodiments, the airbag ignition chip further includes:

[0091] The power conversion module is connected to both the power management module and the door and window control module, and is used to convert the voltage output by the power management module into a voltage that is compatible with the door and window control module.

[0092] For example, since the output voltage of the external main power supply or ignition power supply does not match the required voltage of the door and window control module, in order to ensure the normal power supply of the door and window control module, a power conversion module can also be set in the airbag ignition chip. The power conversion module is connected to the power management module and the door and window control module respectively, so as to convert the voltage output by the power management module into the voltage adapted to the door and window control module, thereby improving the stability of the power supply of the door and window control module.

[0093] This embodiment also provides an electronic product installed in a vehicle. Figure 6 This is a schematic diagram of an electronic product structure provided in an embodiment of this application, such as... Figure 6 As shown, the electronic product 10 includes a main power supply 200, an ignition power supply 300, a capacitor 400, a sensor 700, and an airbag ignition chip 100 in any of the above embodiments. The airbag ignition chip 100 is used to receive the sensing signal emitted by the sensor 700 and control the ignition of the airbag in the vehicle and the operation of the vehicle doors and windows based on the sensing signal.

[0094] For example, during normal vehicle operation, the main power supply 200 charges the ignition power supply 300 and the capacitor 400, thereby enabling the main power supply 200 to supply power to the window and door control module in the airbag ignition chip 100, and the ignition power supply 300 to supply power to the airbag control module. This ensures that the window and door control module controls the vehicle's windows 600 and the airbag control module controls the airbag 500. In the event of a collision, the power management module in the airbag ignition chip 100 switches the power supply to the window and door control module to the ignition power supply 300, and discharges the ignition power supply 300 through the capacitor 400 to provide power for a short period. This ensures that the control of the vehicle's airbags and windows is effective during a collision, improving vehicle safety.

[0095] This embodiment also provides a vehicle that includes the airbag ignition chip or electronic product from any of the above embodiments.

[0096] For example, by installing the airbag ignition chip or electronic product in any of the above embodiments in the vehicle, it is possible to ensure that the airbag control module and the door and window control module are powered normally when the vehicle is involved in a collision, thereby avoiding the problem of the vehicle doors and windows being locked due to the failure of the main power supply in the collision, and effectively improving the safety of the vehicle.

[0097] 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 application.

[0098] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. An airbag ignition chip, characterized in that, The airbag ignition chip includes a power management module, an airbag control module, and a door and window control module, wherein... The power management module is used to connect to the external main power supply and ignition power supply; The main power supply is connected to the door and window control module through the power management module, and is used to supply power to the door and window control module. The ignition power supply is connected to an external capacitor, and the power management module is used to control the main power supply to charge the ignition power supply and the capacitor. The ignition power supply is connected to the airbag control module and is used to supply power to the airbag control module; The power management module is also used to control the door and window control module to connect to the ignition power supply when the main power supply is undervoltage, and the capacitor discharges to the ignition power supply so that the ignition power supply supplies power to the airbag control module and the door and window control module. The power management module includes: a discharge circuit, one end of which is connectable to the ignition power supply and the other end of which is grounded; the discharge circuit is used to conduct to the ignition power supply at a preset frequency after the charging voltage of the ignition power supply reaches a preset voltage, so that the capacitor discharges to the ignition power supply through the discharge circuit. The power management module further includes a power control unit, which is connected to the main power supply, the ignition power supply and the discharge circuit respectively, and is used to control the main power supply to charge the ignition power supply and the capacitor, and after the charging voltage of the ignition power supply reaches the preset voltage, control the ignition power supply and the discharge circuit to conduct at the preset frequency. The power management module includes a second voltage detection unit, which is connected to the ignition power supply and is used to detect the discharge voltage of the capacitor to the ignition power supply when the discharge circuit is connected to the ignition power supply.

2. The airbag ignition chip according to claim 1, characterized in that, The power management module also includes a first voltage detection unit; The first voltage detection unit is connected to the main power supply and is used to detect the supply voltage of the main power supply and determine whether the main power supply is undervoltage based on the supply voltage.

3. The airbag ignition chip according to claim 1, characterized in that, The power control unit is also connected to the second voltage detection unit and is used to send a detection command to the second voltage detection unit when the ignition power supply is connected to the discharge circuit, so that the second voltage detection unit can detect the discharge voltage of the capacitor to the ignition power supply based on the detection command.

4. The airbag ignition chip according to claim 3, characterized in that, The discharge circuit includes multiple discharge resistors, and the power control unit is specifically used to control the number of discharge resistors in the discharge circuit that are connected to the ignition power supply, so that the capacitor discharges to the ignition power supply with different discharge currents.

5. The airbag ignition chip according to claim 3, characterized in that, The power management module further includes: an ignition backup power supply connected to the power control unit; The power control unit is also used to control the main power supply to charge the ignition backup power supply, receive the discharge voltage fed back by the second voltage detection unit, and control the ignition backup power supply to connect with the ignition power supply when the discharge voltage is less than the undervoltage threshold, so that the ignition backup power supply supplies power to the ignition power supply.

6. The airbag ignition chip according to claim 1, characterized in that, The airbag ignition chip also includes a communication processing module, which is connected to the external sensor, the airbag control module, and the door and window control module respectively; The communication processing module is used to generate a first trigger signal based on the sensing signal sent by the external sensor, and transmit the first trigger signal to the airbag control module and the door and window control module respectively, so that the airbag control module controls the airbag to ignite based on the first trigger signal, and the door and window control module controls the vehicle doors and windows to unlock based on the first trigger signal.

7. The airbag ignition chip according to claim 6, characterized in that, The communication processing module is also connected to an external control module; The external control module is used to receive control signals from the user for the doors and windows, and transmit the control signals to the communication processing module; The communication processing module is used to generate a second trigger signal based on the control signal, transmit the second trigger signal to the door and window control module, and enable the door and window control module to control the locking or unlocking of the vehicle doors and windows based on the second trigger signal.

8. An electronic product, characterized in that, The electronic product is installed in the vehicle, and the electronic product includes: The system includes a main power supply, an ignition power supply, a capacitor, a sensor, and an airbag ignition chip as described in any one of claims 1-7. The airbag ignition chip is used to receive the sensing signal emitted by the sensor and control the ignition of the airbag and the operation of the vehicle doors and windows based on the sensing signal.

9. A vehicle, characterized in that, Includes the airbag ignition chip as described in any one of claims 1-7 or the electronic product as described in claim 8.

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