Airbag Ignition Chip, Airbag Control System and Airbag System

Abstract

An embodiment of the present disclosure provides an airbag ignition chip, an airbag control system, and an airbag system. The airbag ignition chip includes: a power management module, a communication bus module, an airbag ignition module, and a peripheral driver module. The power management module is configured to connect to an external first power source and a second power source, charge the second power source through the first power source, and supply power to at least the airbag ignition module and the peripheral driver module through the second power source; the communication bus module is configured to receive a first trigger instruction through a communication bus and transmit the first trigger instruction to the airbag ignition module and the peripheral driver module; the airbag ignition module is configured to send a first driving signal at at least one airbag driving port at least based on the first trigger instruction to drive the airbag; the peripheral driver module is configured to send a second driving signal at at least one peripheral driving port at least based on the first trigger instruction to drive the peripheral device.

Description

Technical Field

[0001] The present invention relates to the field of electronic technology, and particularly to an airbag ignition chip, an airbag control system, and an airbag system. Background Art

[0002] Airbags are an important part of automotive passive safety equipment, providing effective anti-collision protection for drivers and passengers and playing a crucial role in vehicle safety. In automotive electronic systems, a distributed electrical and electronic architecture is adopted, where different functional units are independent of each other. For example, the control and execution of airbags, doors, and windows are all independent of each other. The airbag and the door are controlled through an airbag controller and a door drive controller respectively. With the addition of new functions in modern vehicles, the number of automotive functional units is increasing, the design is becoming more complex, and the communication efficiency between numerous controllers and the coordination between various units are difficult to achieve. Therefore, how to simplify the design of automotive functional units and improve the coordination ability between functions is an urgent problem to be solved. Summary of the Invention

[0003] Embodiments of the present disclosure provide an airbag ignition chip, an airbag control system, and an airbag system.

[0004] According to a first aspect of the embodiments of the present disclosure, an airbag ignition chip is provided, characterized in that the airbag ignition chip includes: a power management module, a communication bus module, an airbag ignition module, and a peripheral drive module, where

[0005] The power management module is configured to connect an external first power supply and a second power supply, charge the second power supply through the first power supply, and supply power to at least the airbag ignition module and the peripheral drive module through the second power supply;

[0006] The communication bus module is configured to receive a first trigger instruction through a communication bus and transmit the first trigger instruction to the airbag ignition module and the peripheral drive module;

[0007] The airbag ignition module is configured to send a first drive signal at at least one airbag drive port based on at least the first trigger instruction to drive an airbag connected to the airbag drive port corresponding to the first drive signal;

[0008] The peripheral drive module is configured to send a second drive signal at at least one peripheral drive port based on at least the first trigger instruction to drive a peripheral connected to the peripheral drive port corresponding to the second drive signal.

[0009] In some embodiments, the airbag ignition chip further includes a detection module

[0010] Among them, the detection module is used to detect at least one of the following and send the detection result to an external controller through the communication bus module:

[0011] Detect the power signal of the first power supply;

[0012] Detect the power signal of the second power supply;

[0013] Detect the power supply signal of the power management module supplying power to the airbag ignition module;

[0014] Detect the power supply signal of the power management module supplying power to the peripheral device driving module.

[0015] In some embodiments, the airbag ignition chip further includes a security module.

[0016] The communication bus module is further used to receive the perception information obtained by an external sensor through the communication bus and send the perception information to the security module, where the perception information is associated with the triggering of the airbag;

[0017] The security module is used to send a second trigger instruction to the airbag ignition module and the peripheral device driving module when the perception information meets the first trigger condition;

[0018] The communication bus module is used to receive a first trigger instruction through the communication bus and transmit the first trigger instruction to the airbag ignition module and the peripheral device driving module;

[0019] The airbag ignition module is used to send the first driving signal at at least one airbag driving port based on the first trigger instruction and the second trigger instruction;

[0020] The peripheral device driving module is used to send the second driving signal at at least one peripheral device driving port based on the first trigger instruction and the second trigger instruction to drive the peripheral device connected to the peripheral device driving port corresponding to the second driving signal.

[0021] In some embodiments, the airbag ignition module is used to send the first driving signal to the airbag driving port indicated by both the first trigger instruction and the second trigger instruction;

[0022] The peripheral device driving module is used to send the second driving signal to the peripheral device driving port indicated by both the first trigger instruction and the second trigger instruction.

[0023] According to a second aspect of the embodiments of the present disclosure, a safety airbag control system is provided, characterized in that the safety airbag control system includes: a controller and a safety airbag ignition chip, wherein the safety airbag ignition chip includes: a power management module, a communication bus module, a safety airbag ignition module, and a peripheral device driving module, wherein,

[0024] The controller is configured to send a first trigger instruction to the communication bus module through the communication bus to indicate triggering the safety airbag and driving the peripheral device;

[0025] The power management module is configured to connect an external first power supply and a second power supply, charge the second power supply through the first power supply, and supply power to at least the safety airbag ignition module and the peripheral device driving module through the second power supply;

[0026] The communication bus module is configured to receive the first trigger instruction through the communication bus and transmit the first trigger instruction to the safety airbag ignition module and the peripheral device driving module;

[0027] The safety airbag ignition module is configured to send a first driving signal at at least one safety airbag driving port based on at least the first trigger instruction to drive the safety airbag connected to the safety airbag driving port corresponding to the first driving signal;

[0028] The peripheral device driving module is configured to send a second driving signal at at least one peripheral device driving port based on at least the first trigger instruction to drive the peripheral device connected to the peripheral device driving port corresponding to the second driving signal.

[0029] In some embodiments, the safety airbag ignition chip further includes a detection module,

[0030] wherein the detection module is configured to detect at least one of the following and send the detection result to the controller through the communication bus module:

[0031] Detect the power signal of the first power supply;

[0032] Detect the power signal of the second power supply;

[0033] Detect the power supply signal for the power management module to supply power to the safety airbag ignition module;

[0034] Detect the power supply signal for the power management module to supply power to the peripheral device driving module;

[0035] The controller is configured to send indication information based on the detection result to prompt the user.

[0036] In some embodiments, the safety airbag ignition chip further includes a safety module,

[0037] The communication bus module is further configured to receive sensing information sent by an external sensor via the communication bus, and send the sensing information to the safety module, where the sensing information is associated with the triggering of the airbag;

[0038] The safety module is configured to send a second trigger instruction to the airbag ignition module and the peripheral device drive module when the sensing information meets a first trigger condition;

[0039] The communication bus module is configured to receive a first trigger instruction via the communication bus, and transmit the first trigger instruction to the airbag ignition module and the peripheral device drive module;

[0040] The airbag ignition module is configured to send the first drive signal at at least one airbag drive port based on the first trigger instruction and the second trigger instruction;

[0041] The peripheral device drive module is configured to send the second drive signal at at least one peripheral device drive port based on the first trigger instruction and the second trigger instruction, so as to drive a peripheral device connected to the peripheral device drive port corresponding to the second drive signal.

[0042] In some embodiments, the controller is specifically configured to:

[0043] Receive the sensing information sent by the external sensor;

[0044] Send the first trigger instruction to the communication bus module when the sensing information meets a second trigger condition.

[0045] In some embodiments, the airbag ignition module is configured to send the first drive signal to an airbag drive port indicated by both the first trigger instruction and the second trigger instruction;

[0046] The peripheral device drive module is configured to send the second drive signal to a peripheral device drive port indicated by both the first trigger instruction and the second trigger instruction.

[0047] According to a third aspect of the embodiments of the present disclosure, there is provided an airbag system, characterized in that the airbag system includes:

[0048] The airbag ignition chip described in the first aspect; or

[0049] The airbag control system described in the second aspect.

[0050] Embodiments of the present disclosure provide an airbag ignition chip, an airbag control system, and an airbag system. The airbag ignition chip includes: a power management module, a communication bus module, an airbag ignition module, and a peripheral device driving module. Among them, the power management module is used to connect an external first power source and a second power source, charge the second power source through the first power source, and supply power to at least the airbag ignition module and the peripheral device driving module through the second power source; the communication bus module is used to receive a first trigger instruction through a communication bus and transmit the first trigger instruction to the airbag ignition module and the peripheral device driving module; the airbag ignition module is used to send a first driving signal at at least one airbag driving port at least based on the first trigger instruction to drive the airbag connected to the airbag driving port corresponding to the first driving signal; the peripheral device driving module is used to send a second driving signal at at least one peripheral device driving port at least based on the first trigger instruction to drive the peripheral device connected to the peripheral device driving port corresponding to the second driving signal. Integrating the airbag ignition module and the peripheral device driving module into the same airbag ignition chip forms a new type of regional function controller. On the one hand, the space occupied by the airbag ignition module and the peripheral device driving module as separate chips can be reduced. At the same time, since the airbag ignition module and the peripheral device driving module are integrated into the same airbag ignition chip, they can be controlled by the same instruction, reducing the complexity of separately controlling discrete components and improving the control efficiency. On the other hand, since the second power source is used as the power supply for the airbag ignition module and the peripheral device driving module, the situation where the airbag ignition module and the peripheral device driving module cannot trigger the airbag and drive the peripheral device when the first power source fails can be reduced, improving the safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 is a schematic structural diagram of an airbag ignition chip shown according to an exemplary embodiment;

[0052] Figure 2 is another schematic structural diagram of an airbag ignition chip shown according to an exemplary embodiment;

[0053] Figure 3 is still another schematic structural diagram of an airbag ignition chip shown according to an exemplary embodiment;

[0054] Figure 4 is a schematic structural diagram of an airbag drive circuit shown according to an exemplary embodiment;

[0055] Figure 5 is another schematic structural diagram of an airbag drive circuit shown according to an exemplary embodiment;

[0056] Figure 6 It is a schematic structural diagram of an airbag ignition control system shown according to an exemplary embodiment. Detailed implementation manners

[0057] To make the technical solutions and beneficial effects of the present invention more obvious and understandable, the following will be described in detail by listing specific embodiments. Among them, the drawings are not necessarily drawn to scale, and local features can be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application belongs.

[0058] The embodiments of the present disclosure are not exhaustive, but only schematic of some embodiments, and do not specifically limit the protection scope of the present disclosure. Without conflict, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily. For example, the solution after removing some steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be arbitrarily exchanged. In addition, the optional implementation manners in an embodiment can be combined arbitrarily; furthermore, the embodiments can be combined arbitrarily. For example, some or all of the steps of different embodiments can be combined arbitrarily, and an embodiment can be arbitrarily combined with the optional implementation manners of other embodiments.

[0059] In each embodiment of the present disclosure, if there is no special explanation and logical conflict, the terms and / or descriptions between the embodiments are consistent and can be cited from each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0060] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure.

[0061] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular form, such as "a", "an", "the", "above", "said", "aforementioned", "this", etc., can mean "one and only one", or can also mean "one or more", "at least one", etc. For example, in the case of using articles such as "a", "an", "the" in English translation, the noun after the article can be understood as a singular expression form or a plural expression form.

[0062] In the embodiments of the present disclosure, "a plurality of" means two or more.

[0063] In some embodiments, terms such as "at least one (at least one of, at least one item, at least one)", "one or more", "a plurality of", "multiple", etc. may be used interchangeably.

[0064] In some embodiments, notations such as "at least one of A and B", "A and / or B", "A in one case, B in another case", "A in one situation, B in another situation", etc. may, depending on the circumstances, include the following technical solutions: In some embodiments, A is performed (A is performed independently of B); in some embodiments, B is performed (B is performed independently of A); in some embodiments, a selection is made from A and B for execution (A and B are selectively executed); in some embodiments, both A and B are performed (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0065] In some embodiments, notations such as "A or B" may, depending on the circumstances, include the following technical solutions: In some embodiments, A is performed (A is performed independently of B); in some embodiments, B is performed (B is performed independently of A); in some embodiments, a selection is made from A and B for execution (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0066] The prefix words such as "first", "second", etc. in the embodiments of the present disclosure are only used to distinguish different described objects and do not impose limitations on the position, order, priority, value, or content of the described objects. For the statements of the described objects, refer to the descriptions in the claims or the context of the embodiments. There should be no redundant limitations due to the use of prefix words. For example, if the described object is "field", the ordinal numbers before "field" in "first field" and "second field" do not limit the position or order between the "fields", and "first" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of "first field" and "second field". Another example, if the described object is "level", the ordinal numbers before "level" in "first level" and "second level" do not limit the priority between the "levels". Another example, the value of the described object is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the value of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different. For example, if the described object is "device", "first device" and "second device" can be the same device or different devices, and their types can be the same or different; another example, if the described object is "information", "first information" and "second information" can be the same information or different information, and their contents can be the same or different.

[0067] In some embodiments, "including A", "containing A", "for indicating A", "carrying A" can be interpreted as directly carrying A or as indirectly indicating A.

[0068] In some embodiments, terms such as "……", "determining……", "in the case of……", "when……", "while……", "if……", "if……" can be replaced with each other.

[0069] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not lower than", "above", etc. can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", "below", etc. can be replaced with each other.

[0070] In addition, each element, each row, or each column in the table of the embodiments of the present disclosure can be implemented as an independent embodiment, and any combination of any element, any row, and any column can also be implemented as an independent embodiment.

[0071] In some embodiments, functional units such as airbags, doors, and windows are managed by independent controllers and drivers, etc., which thus creates obstacles to the coordinated operation of the two functional units. For example, when an emergency occurs and the airbag needs to be popped out, the door also needs to be unlocked and the window lowered. Therefore, when the controller of the airbag determines to trigger the airbag, it needs to notify the controllers of the door and the window, and then the controllers of the door and the window control the drivers of the door and the window to drive the actuators such as motors. This results in a delay. And in the event of an emergency, the power supply of the door and window may be cut off, making it impossible to unlock the door and lower the window, creating a safety hazard.

[0072] The embodiments of the present disclosure provide an airbag ignition chip 100, as Figure 1 shown, the airbag ignition chip 100 includes: a power management module 110, a communication bus module 120, an airbag ignition module 130, and a peripheral drive module 140, wherein,

[0073] The power management module 110 is used to connect to an external first power supply 200 and a second power supply 300, charge the second power supply 300 through the first power supply 200, and supply power to at least the airbag ignition module 130 and the peripheral drive module 140 through the second power supply 300;

[0074] The communication bus module 120 is configured to receive a first trigger instruction via the communication bus and transmit the first trigger instruction to the airbag ignition module 130 and the peripheral device driving module 140;

[0075] The airbag ignition module 130 is configured to send a first driving signal at at least one airbag driving port based at least on the first trigger instruction to drive the airbag connected to the airbag driving port corresponding to the first driving signal;

[0076] The peripheral device driving module 140 is configured to send a second driving signal at at least one peripheral device driving port based at least on the first trigger instruction to drive the peripheral device connected to the peripheral device driving port corresponding to the second driving signal.

[0077] The airbag ignition chip 100 may be an independent integrated circuit chip.

[0078] The airbag ignition chip 100 may be controlled by a controller to trigger the airbag and / or drive the peripheral device. The controller may send a first trigger instruction to the airbag ignition chip 100 via the communication bus to indicate triggering the airbag and / or driving the peripheral device. Here, the airbag is different from the peripheral device.

[0079] Here, the first power supply 200 may include the power supply generated by the vehicle power supply battery. For example, the vehicle power supply battery may generate the voltage signal required by the airbag ignition chip 100 through voltage conversion or the like to supply power to the airbag ignition chip 100. The second power supply 300 may include an energy storage power supply.

[0080] In a possible implementation manner, when a vehicle collision occurs, the reliability of the second power supply 300 is greater than that of the first power supply 200.

[0081] In a possible implementation manner, the second power supply 300 may include a capacitor, such as a super capacitor. The storable electric quantity of the second power supply 300 may be determined based on all the airbags and peripheral devices connected to the airbag ignition chip 100, so that when the first power supply 200 fails, the second power supply 300 can trigger all the airbags connected to the airbag ignition chip 100 and drive all the peripheral devices connected to the airbag ignition chip 100.

[0082] In a possible implementation manner, the airbag driving port is located on the airbag ignition chip 100 and is used to connect to the airbag and the peripheral device to realize the connection between the airbag ignition module 130 and the airbag. The peripheral device driving port is located on the airbag ignition chip 100 and is used to connect to the peripheral device to realize the connection between the peripheral device driving module 140 and the peripheral device. The physical implementation of the airbag driving port and the peripheral device driving port may include chip pins and the like.

[0083] Here, the power management module 110 is used to implement the power supply management for the airbag ignition chip 100. The power management module 110 can charge the second power supply 300 with the first power supply 200. When a vehicle collision occurs, the second power supply 300 supplies power to the airbag ignition module 130 and the peripheral drive module 140, thereby improving the power supply stability of the airbag ignition module 130 and the peripheral drive module 140.

[0084] In a possible implementation, an airbag drive port may include multiple output ports for controlling the on / off of the circuit at different positions in the circuit of the airbag ignition tube.

[0085] In a possible implementation, a peripheral port may include an output port and an input port, or may only include an output port. The second drive signal can be output through the output port and flow into the circuit from the input port, or flow into the circuit from the power ground.

[0086] In a possible implementation, the peripheral port may include an Analog InputOutput (AIO) port. The second drive signal may include a Pulse-Width Modulation (PWM) signal, etc.

[0087] For implementing the circuit of the airbag ignition tube. The first drive signal (such as a current signal) for triggering the airbag can be output from the output port to the airbag ignition tube and flow back from the input port to form a circuit.

[0088] Here, the peripherals are different from the airbag. The peripherals are associated with the airbag. For example, the peripherals may include: door lock execution components (such as door lock motors), window lifting execution components (such as window lifting motors), vehicle lights, etc. Correspondingly, the peripheral drive module 140 may include a door lock drive module, a window lifting drive module, and / or a vehicle light drive module, etc.

[0089] In a possible implementation, the association of the peripherals with the airbag includes: the peripherals associated at the time of airbag triggering need to be driven.

[0090] For example, when the airbag is triggered, the door lock execution component needs to perform the operation of unlocking the door lock, and / or the window lifting execution component needs to perform the action of lowering the window, and / or the vehicle lights need to perform the action of flashing, etc.

[0091] The communication bus module 120 can be used to connect the airbag ignition chip 100 to external devices through a communication bus for communication, such as controllers, sensors, etc. The communication bus module 120 can be used to transmit data of one or more communication buses. For example, the communication bus module 120 can be used to transmit data of a Controller Area Network (CAN) bus and / or a Peripheral Sensor Interface (PSI) bus. It can be understood that the connection between the airbag ignition chip 100 and external devices can include direct connection and indirect connection.

[0092] The first trigger instruction can be sent by a controller other than the airbag ignition chip 100. It can be understood that the first trigger instruction can include partial information for triggering the airbag and partial information for driving external devices.

[0093] In a possible implementation, the first trigger instruction can include an independent instruction or multiple independent instructions.

[0094] The first trigger instruction is used to indicate at least one of the following: whether to trigger the airbag, the airbag to be triggered, the triggering moment of the airbag, and the external devices to be driven.

[0095] In a possible implementation, the first trigger instruction can be sent by the same controller. For example, the first trigger instruction can be sent by the controller used to determine whether to trigger the airbag. In this way, communication delays and the like caused by multiple controllers separately determining whether to trigger the airbag and whether to drive external devices can be reduced, and the system response speed can be improved.

[0096] Here, integrating the airbag ignition module 130 and the peripheral device driving module 140 into the same airbag ignition chip 100 forms a new type of regional function controller. On the one hand, the space occupied by the airbag ignition module 130 and the peripheral device driving module 140 as separate chips can be reduced. At the same time, since the airbag ignition module 130 and the peripheral device driving module 140 are integrated into the same airbag ignition chip 100, they can be controlled by the same instruction, reducing the complexity of separately controlling discrete components and improving the control efficiency. On the other hand, since the second power supply 300 is used as the power supply for the airbag ignition module 130 and the peripheral device driving module 140, the situation where the airbag ignition module 130 and the peripheral device driving module 140 cannot trigger the airbag and drive external devices in the event of the failure of the first power supply 200 can be reduced, improving safety.

[0097] In some embodiments, as Figure 2 shown, the airbag ignition chip 100 further includes a detection module 150

[0098] Among them, the detection module 150 is configured to detect at least one of the following and send the detection result to an external controller via the communication bus module 120:

[0099] Detect the power signal of the first power supply 200;

[0100] Detect the power signal of the second power supply 300;

[0101] Detect the power supply signal for the power management module 110 to supply power to the airbag ignition module 130;

[0102] Detect the power supply signal for the power management module 110 to supply power to the peripheral device driving module 140.

[0103] Here, the detection module 150 can be used to detect current and voltage and compare them with the reference thresholds of the signals to be detected. Thus, if the voltage and / or current of the signal to be detected exceed the corresponding reference thresholds respectively, then the detection module 150 can report the detection result to the controller, and the controller can give indication information such as sound and light.

[0104] Since the power supply state of the airbag ignition chip 100 directly affects the passive safety device: the airbag, whether the peripherals can work effectively. Therefore, by setting the detection module 150 inside the airbag ignition chip 100 to detect the power signal and / or the power supply signal, the integrity of the airbag ignition chip 100 can be improved, the negative impact on user safety caused by the failure of the airbag ignition chip 100 can be reduced, and the safety can be improved.

[0105] In some embodiments, as Figure 3 shown, the airbag ignition chip 100 further includes a safety module 160,

[0106] The communication bus module 120 is further configured to receive the sensing information obtained by an external sensor via the communication bus and send the sensing information to the safety module 160, where the sensing information is associated with the triggering of the airbag;

[0107] The safety module 160 is configured to send a second trigger instruction to the airbag ignition module 130 and the peripheral device driving module 140 when the sensing information meets the first trigger condition;

[0108] The communication bus module 120 is configured to receive a first trigger instruction via the communication bus and transmit the first trigger instruction to the airbag ignition module 130 and the peripheral device driving module 140;

[0109] The airbag ignition module 130 is configured to send the first driving signal at at least one airbag driving port based on the first triggering instruction and the second triggering instruction;

[0110] The peripheral device driving module 140 is configured to send the second driving signal at at least one peripheral device driving port based on the first triggering instruction and the second triggering instruction, so as to drive the peripheral device connected to the peripheral device driving port corresponding to the second driving signal.

[0111] The sensing information may include at least one of the following: collision information sent by a collision sensor, acceleration information sent by an acceleration sensor, and speed information sent by a speed sensor.

[0112] Both the controller and the safety module 160 may determine whether to trigger the airbag and drive the peripheral device based on the sensing information. The controller may determine at least one of the following based on whether the sensing information of the vehicle sensor meets the second triggering condition: whether to trigger the airbag, which airbag needs to be triggered, whether to drive the peripheral device, and which peripheral device needs to be driven. The safety module 160 may determine at least one of the following based on whether the sensing information of the vehicle sensor meets the first triggering condition: whether to trigger the airbag, which airbag needs to be triggered, whether to drive the peripheral device, and which peripheral device needs to be driven.

[0113] Here, the first triggering instruction is determined by the controller based on the sensing information and the second triggering condition. The second triggering instruction is determined by the safety module 160 based on the sensing information and the first triggering condition. The first triggering condition may be different from the second triggering condition.

[0114] In a possible implementation, the sensing information used by the controller is different from the sensing information used by the safety module 160. Since the processing capabilities of the controller and the safety module 160 are different, the controller may use more sensing information to determine the first triggering instruction. While the safety module 160 uses less sensing information. For example, the controller may combine the collision information and the speed information to determine the first triggering instruction. The safety module 160 may determine the second triggering instruction only based on the collision information.

[0115] In a possible implementation, the requirements of the second triggering condition may be higher than those of the first triggering condition. For example, in the second triggering condition, to trigger the airbag, it is required that the collision information indicates a collision and the vehicle speed is higher than a threshold value, while in the first triggering condition, to trigger the airbag, it is only required that the vehicle speed is higher than the threshold value. Or, in the second triggering condition, to trigger the airbag, it is required that the vehicle speed is higher than a first threshold value, while in the first triggering condition, to trigger the airbag, it is required that the vehicle speed is higher than a second threshold value, where the first threshold value is greater than the second threshold value.

[0116] Here, the controller and the safety module 160 may respectively send a first trigger instruction and a second trigger instruction. Both the first trigger instruction and the second trigger instruction may be used to indicate at least one of the following: whether to trigger the airbag, the airbag to be triggered, the triggering moment of the airbag, and the peripheral device to be driven.

[0117] The airbag ignition module 130 and the peripheral device drive module 140 may combine the first trigger instruction and the second trigger instruction to determine at least one of the following: whether to trigger the airbag, the airbag to be triggered, the triggering moment of the airbag, and the peripheral device to be driven.

[0118] In a possible implementation, the first trigger instruction and the second trigger instruction may serve as two safety locks for triggering the airbag and driving the peripheral device. The airbag ignition module 130 and the peripheral device drive module 140 may only execute the same instructions in the first trigger instruction and the second trigger instruction.

[0119] Here, the first trigger instruction and the second trigger instruction serve as the basis for triggering the airbag and driving the peripheral device. The airbag ignition module 130 and the peripheral device drive module 140 may perform double verification based on the first trigger instruction and the second trigger instruction to reduce the situation of erroneously triggering the airbag and driving the peripheral device and improve the operation accuracy.

[0120] In some embodiments, the airbag ignition module 130 is configured to send the first drive signal to the airbag drive port indicated by both the first trigger instruction and the second trigger instruction;

[0121] The peripheral device drive module 140 is configured to send the second drive signal to the peripheral device drive port indicated by both the first trigger instruction and the second trigger instruction.

[0122] Specifically, as Figure 4 shown, the airbag ignition module 130 includes a high-side drive and a low-side drive, which are connected by an ignition tube connected to the airbag drive port (including the ignition high-side port (denoted as IGH) and the ignition low-side port (denoted as IGL)). When an ignition command is received, the high-side drive and the low-side drive provide the first drive signal (i.e., the ignition current) for ignition, and the detection module 150 can diagnose whether the ignition switch is normal.

[0123] To prevent the airbag from being opened due to misoperation, the high-side drive and / or the low-side drive are provided with a double unlocking mechanism, and two trigger instructions are required to unlock the airbag.

[0124] The sensing information of the sensor can be sent to the security module 160 through the communication bus. The security module 160 reads the sensing information on the communication bus, evaluates the sensing information, and determines whether an abnormal situation occurs according to a pre-given calculation method and threshold. When an abnormal situation occurs, a second trigger instruction is issued (equivalent to unlocking the first-layer protection device of the airbag). After processing and judging the sensing information, the controller issues a first trigger instruction (equivalent to unlocking the second-layer protection device of the airbag). As Figure 5 shown, for an airbag driving port, the high-side drive and the low-side drive will send an ignition sequence for ignition only when they receive the first trigger instruction and the second trigger instruction.

[0125] The way the peripheral drive module 140 drives the peripherals based on the first trigger instruction and the second trigger instruction is similar to the way the airbag ignition module 130 triggers the airbag, which will not be elaborated here.

[0126] Through the first trigger instruction and the second trigger instruction, it is possible to reduce the situation where the ignition switch is abnormally triggered due to the incorrect operation of the airbag ignition circuit when the airbag should not be deployed, and improve the safety of the airbag. When the airbag is deployed normally when it needs to be deployed, it can reduce the problem of the ignition switch starting during misoperation.

[0127] The first trigger instruction and the second trigger instruction serve as the basis for triggering the airbag and driving the peripherals. The airbag ignition module 130 and the peripheral drive module 140 can perform double verification based on the first trigger instruction and the second trigger instruction to reduce the situation of erroneously triggering the airbag and driving the peripherals, and improve the operation accuracy.

[0128] An embodiment of the present disclosure provides an airbag control system, as Figure 6 shown, the airbag control system includes: a controller 400 and an airbag ignition chip 100, wherein, the airbag ignition chip 100, as Figure 1 shown, includes: a power management module 110, a communication bus module 120, an airbag ignition module 130, and a peripheral drive module 140, wherein,

[0129] The controller 400 is configured to send a first trigger instruction to the communication bus module 120 through the communication bus to indicate triggering the airbag and driving the peripherals;

[0130] The power management module 110 is configured to connect to an external first power supply 200 and a second power supply 300, charge the second power supply 300 through the first power supply 200, and supply power to at least the airbag ignition module 130 and the peripheral drive module 140 through the second power supply 300;

[0131] The communication bus module 120 is configured to receive the first trigger instruction via the communication bus and transmit the first trigger instruction to the airbag ignition module 130 and the peripheral device driving module 140;

[0132] The airbag ignition module 130 is configured to send a first driving signal at at least one airbag driving port based on at least the first trigger instruction to drive the airbag connected to the airbag driving port corresponding to the first driving signal;

[0133] The peripheral device driving module 140 is configured to send a second driving signal at at least one peripheral device driving port based on at least the first trigger instruction to drive the peripheral device connected to the peripheral device driving port corresponding to the second driving signal.

[0134] The airbag ignition chip 100 may be an independent integrated circuit chip.

[0135] The airbag ignition chip 100 may be controlled by the controller 400 to implement the triggering of the airbag and / or the driving of the peripheral device. The controller 400 may send a first trigger instruction to the airbag ignition chip 100 via the communication bus to instruct the triggering of the airbag and / or the driving of the peripheral device.

[0136] Here, the first power supply 200 may include the power supply generated by the vehicle power supply battery. For example, the vehicle power supply battery may generate the voltage signal required by the airbag ignition chip 100 through voltage conversion or the like to supply power to the airbag ignition chip 100. The second power supply 300 may include an energy storage power supply.

[0137] In a possible implementation manner, when a vehicle collision occurs, the reliability of the second power supply 300 is greater than that of the first power supply 200.

[0138] In a possible implementation manner, the second power supply 300 may include a capacitor, such as a super capacitor. The storable power of the second power supply 300 may be determined based on all the airbags and peripheral devices connected to the airbag ignition chip 100, so that when the first power supply 200 fails, the second power supply 300 can trigger all the airbags connected to the airbag ignition chip 100 and drive all the peripheral devices connected to the airbag ignition chip 100.

[0139] In a possible implementation manner, the airbag driving port is located on the airbag ignition chip 100 and is used to connect to the airbag and the peripheral device to implement the connection between the airbag ignition module 130 and the airbag. The peripheral device driving port is located on the airbag ignition chip 100 and is used to connect to the peripheral device to implement the connection between the peripheral device driving module 140 and the peripheral device. The physical implementation of the airbag driving port and the peripheral device driving port may include chip pins and the like.

[0140] Here, the power management module 110 is used to implement the power supply management for the airbag ignition chip 100. The power management module 110 can charge the second power supply 300 with the first power supply 200. When a vehicle collision occurs, the second power supply 300 supplies power to the airbag ignition module 130 and the peripheral device driving module 140, thereby improving the power supply stability of the airbag ignition module 130 and the peripheral device driving module 140.

[0141] In a possible implementation, an airbag driving port may include an output port and an input port, which are used to implement the circuit of the airbag ignition tube. The first driving signal (such as a current signal) for triggering the airbag can be output from the output port to the airbag ignition tube and input from the input port to form a circuit.

[0142] In a possible implementation, a peripheral port may include an output port and an input port, or may only include an output port. The second driving signal can be output through the output port and flow in from the input port to form a circuit, or flow in from the power ground to form a circuit.

[0143] In a possible implementation, the peripheral port may include an Analog InputOutput (AIO) port. The second driving signal may include a Pulse-Width Modulation (PWM) signal, etc.

[0144] It is used to implement the circuit of the airbag ignition tube. The first driving signal (such as a current signal) for triggering the airbag can be output from the output port to the airbag ignition tube and flow back from the input port to form a circuit.

[0145] Here, the peripheral devices are different from the airbag. The peripheral devices are associated with the airbag. For example, the peripheral devices may include: door lock execution components (such as door lock motors), window lifter execution components (such as window lifter motors), vehicle lights, etc. Correspondingly, the peripheral device driving module 140 may include a door lock driving module, a window lifter driving module, and / or a vehicle light driving module, etc.

[0146] In a possible implementation, the peripheral devices being associated with the airbag includes: the peripheral devices associated when the airbag is triggered need to be driven.

[0147] For example, when the airbag is triggered, the door lock execution component needs to perform the operation of unlocking the door lock, and / or the window lifter execution component needs to perform the action of lowering the window, and / or the vehicle lights need to perform the action of flashing, etc.

[0148] The communication bus module 120 can be used to connect the airbag ignition chip 100 to external devices, such as the controller 400, sensors, etc. via the communication bus. The communication bus module 120 can be used to transmit data of one or more communication buses. For example, the communication bus module 120 can be used to transmit data of the CAN bus and / or the PSI bus. It can be understood that the connection between the airbag ignition chip 100 and external devices can include direct connection and indirect connection.

[0149] The first trigger instruction can be sent by the controller 400 outside the airbag ignition chip 100. It can be understood that the first trigger instruction can contain partial information for triggering the airbag and partial information for driving peripheral devices.

[0150] In a possible implementation, the first trigger instruction can include an independent instruction or multiple independent instructions.

[0151] The first trigger instruction is used to indicate at least one of the following: whether to trigger the airbag, the airbag to be triggered, the trigger moment of the airbag, and the peripheral device to be driven.

[0152] In a possible implementation, the first trigger instruction can be sent by the same controller 400. For example, the first trigger instruction can be sent by the controller 400 used to determine whether to trigger the airbag. In this way, it is possible to reduce the communication delay and the like caused by multiple controllers 400 separately determining whether to trigger the airbag and whether to drive peripheral devices, and improve the system response speed.

[0153] Here, integrating the airbag ignition module 130 and the peripheral device driving module 140 into the same airbag ignition chip 100 forms a new type of area function controller 400. On the one hand, it is possible to reduce the space occupied by the airbag ignition module 130 and the peripheral device driving module 140 as separate chips. At the same time, since the airbag ignition module 130 and the peripheral device driving module 140 are integrated into the same airbag ignition chip 100, they can be controlled by the same instruction, reducing the complexity of separately controlling discrete components and improving the control efficiency. On the other hand, since the second power supply 300 is used as the power supply for the airbag ignition module 130 and the peripheral device driving module 140, it is possible to reduce the situation where the airbag ignition module 130 and the peripheral device driving module 140 cannot trigger the airbag and drive peripheral devices in the event of the failure of the first power supply 200, improving safety.

[0154] In some embodiments, as Figure 2 shown, the airbag ignition chip 100 further includes a detection module 150,

[0155] Among them, the detection module 150 is configured to detect at least one of the following and send the detection result to the controller 400 through the communication bus module 120:

[0156] Detect the power signal of the first power supply 200;

[0157] Detect the power signal of the second power supply 300;

[0158] Detect the power supply signal of the power management module 110 to the airbag ignition module 130;

[0159] Detect the power supply signal of the power management module 110 to the peripheral device driving module 140;

[0160] The controller 400 is configured to send indication information based on the detection result to prompt the user.

[0161] Here, the detection module 150 can be used to detect current and voltage and compare them with the reference thresholds of the signals to be detected. Thus, if the voltage and / or current of the signal to be detected exceed the corresponding reference thresholds respectively, then the detection module 150 can report the detection result to the controller 400, and the controller 400 gives indication information such as through sound and light.

[0162] Since the power supply state of the airbag ignition chip 100 directly affects the passive safety device: the airbag, whether the peripherals can work effectively. Therefore, by setting the detection module 150 inside the airbag ignition chip 100 to detect the power signal and / or the power supply signal, the integrity of the airbag ignition chip 100 can be improved, the negative impact on the user's safety caused by the failure of the airbag ignition chip 100 can be reduced, and the safety can be improved.

[0163] In some embodiments, as Figure 3 shown, the airbag ignition chip 100 further includes a safety module 160,

[0164] The communication bus module 120 is further configured to receive the sensing information sent by an external sensor through the communication bus and send the sensing information to the safety module 160, where the sensing information is associated with the triggering of the airbag;

[0165] The safety module 160 is configured to send a second trigger instruction to the airbag ignition module 130 and the peripheral device driving module 140 when the sensing information meets the first trigger condition;

[0166] The communication bus module 120 is configured to receive the first trigger instruction through the communication bus and transmit the first trigger instruction to the airbag ignition module 130 and the peripheral device driving module 140;

[0167] The airbag ignition module 130 is configured to send the first driving signal at at least one airbag driving port based on the first triggering instruction and the second triggering instruction;

[0168] The peripheral device driving module 140 is configured to send the second driving signal at at least one peripheral device driving port based on the first triggering instruction and the second triggering instruction to drive a peripheral device connected to the peripheral device driving port corresponding to the second driving signal.

[0169] The sensing information may include at least one of the following: collision information sent by a collision sensor, acceleration information sent by an acceleration sensor, and speed information sent by a speed sensor.

[0170] In some embodiments, the controller 400 is specifically configured to:

[0171] Receive the sensing information sent by the external sensor;

[0172] When the sensing information satisfies a second triggering condition, send the first triggering instruction to the communication bus module 120.

[0173] Both the controller 400 and the safety module 160 may determine whether to trigger the airbag and drive the peripheral device, etc. based on the sensing information. The controller 400 may determine at least one of the following based on whether the sensing information of the vehicle sensor satisfies the second triggering condition: whether to trigger the airbag, the airbag to be triggered, whether to drive the peripheral device, and the peripheral device to be driven. The safety module 160 may determine at least one of the following based on whether the sensing information of the vehicle sensor satisfies the first triggering condition: whether to trigger the airbag, the airbag to be triggered, whether to drive the peripheral device, and the peripheral device to be driven.

[0174] Here, the first triggering instruction is determined by the controller 400 based on the sensing information and the second triggering condition. The second triggering instruction is determined by the safety module 160 based on the sensing information and the first triggering condition. The first triggering condition may be different from the second triggering condition.

[0175] In a possible implementation manner, the sensing information adopted by the controller 400 is different from the sensing information adopted by the safety module 160. Since the processing capabilities of the controller 400 and the safety module 160 are different, the controller 400 may adopt more sensing information to determine the first triggering instruction. While the safety module 160 adopts less sensing information. For example, the controller 400 may combine the collision information and the speed information to determine the first triggering instruction. The safety module 160 may determine the second triggering instruction only based on the collision information.

[0176] In a possible implementation, the requirements for the second trigger condition can be higher than those for the first trigger condition. For example, in the second trigger condition for triggering the airbag, it is required that the collision information indicates a collision and the vehicle speed is higher than a threshold value, while in the first trigger condition for triggering the airbag, it is only required that the vehicle speed is higher than the threshold value. Or, in the second trigger condition for triggering the airbag, it is required that the vehicle speed is higher than a first threshold value, and in the first trigger condition for triggering the airbag, it is required that the vehicle speed is higher than a second threshold value, where the first threshold value is greater than the second threshold value.

[0177] Here, the controller 400 and the safety module 160 can respectively send a first trigger instruction and a second trigger instruction. Both the first trigger instruction and the second trigger instruction can be used to indicate at least one of the following: whether to trigger the airbag, the airbag to be triggered, the triggering moment of the airbag, and the peripherals to be driven.

[0178] The airbag ignition module 130 and the peripheral drive module 140 can combine the first trigger instruction and the second trigger instruction to determine at least one of the following: whether to trigger the airbag, the airbag to be triggered, the triggering moment of the airbag, and the peripherals to be driven.

[0179] In a possible implementation, the first trigger instruction and the second trigger instruction can serve as two safety locks for triggering the airbag and driving the peripherals. The airbag ignition module 130 and the peripheral drive module 140 can only execute the same instructions in the first trigger instruction and the second trigger instruction.

[0180] Here, the first trigger instruction and the second trigger instruction serve as the basis for triggering the airbag and driving the peripherals. The airbag ignition module 130 and the peripheral drive module 140 can perform double verification based on the first trigger instruction and the second trigger instruction to reduce the situation of erroneously triggering the airbag and driving the peripherals and improve the operation accuracy.

[0181] In some embodiments, the airbag ignition module 130 is configured to send the first drive signal to the airbag drive port indicated by both the first trigger instruction and the second trigger instruction;

[0182] The peripheral drive module 140 is configured to send the second drive signal to the peripheral drive port indicated by both the first trigger instruction and the second trigger instruction.

[0183] Specifically, such as Figure 4As shown, the airbag ignition module 130 includes a high-side driver and a low-side driver, which are connected by an ignition tube connected to the airbag drive ports (including the ignition high-side port (denoted as IGH) and the ignition low-side port (denoted as IGL)). When an ignition command is received, the high-side driver and the low-side driver provide a first drive signal (i.e., ignition current) for ignition, and the detection module 150 can diagnose whether the ignition switch is normal.

[0184] To prevent the airbag from being opened due to misoperation, the high-side driver and / or the low-side driver are provided with a double unlocking mechanism, and two trigger instructions are required to unlock the airbag.

[0185] The sensing information of the sensor can be sent to the safety module 160 through the communication bus. The safety module 160 reads the sensing information on the communication bus, evaluates the sensing information, and determines whether an abnormal situation occurs according to a pre-given calculation method and threshold. When an abnormal situation occurs, a second trigger instruction is issued (equivalent to unlocking the first layer of protection device of the airbag). After processing and judging the sensing information, the controller 400 issues a first trigger instruction (equivalent to unlocking the second layer of protection device of the airbag). As Figure 5 shown, for one airbag drive port, the high-side driver and the low-side driver will send an ignition sequence for ignition only when they receive the first trigger instruction and the second trigger instruction.

[0186] The method by which the peripheral drive module 140 drives the peripherals based on the first trigger instruction and the second trigger instruction is similar to the method by which the airbag ignition module 130 triggers the airbag, and will not be elaborated here.

[0187] The first trigger instruction and the second trigger instruction serve as the basis for triggering the airbag and driving the peripherals. The airbag ignition module 130 and the peripheral drive module 140 can perform double verification based on the first trigger instruction and the second trigger instruction to reduce the situation of mis-triggering the airbag and driving the peripherals, and improve the operation accuracy.

[0188] This application also provides an airbag system, which includes an airbag and the airbag ignition chip or airbag control system described in any of the above embodiments.

[0189] This application also provides a vehicle system, which includes a vehicle body and the airbag system described in any of the above embodiments.

[0190] The embodiments or implementation manners in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts among the embodiments can be referred to each other.

[0191] In the description of this specification, the descriptions referring to "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0192] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An airbag ignition chip, characterized in that, The airbag ignition chip includes: a power management module, a communication bus module, an airbag ignition module, and a peripheral driver module. Among them, the power management module is used to connect to an external first power supply and a second power supply, charge the second power supply through the first power supply, and supply power to at least the airbag ignition module and the peripheral driver module through the second power supply; the first power supply includes an automotive power battery, and the second power supply includes a capacitor; when a vehicle collision occurs, the reliability of the second power supply is greater than that of the first power supply; the communication bus module is used to receive a first trigger instruction through a communication bus and transmit the first trigger instruction to the airbag ignition module and the peripheral driver module; the airbag ignition module is used to send a first driving signal at at least one airbag driving port based on at least the first trigger instruction to drive the airbag connected to the airbag driving port corresponding to the first driving signal; the peripheral driver module is used to send a second driving signal at at least one peripheral driving port based on at least the first trigger instruction to drive the peripheral connected to the peripheral driving port corresponding to the second driving signal; the airbag ignition chip further includes a security module, the communication bus module is further used to receive sensing information obtained by an external sensor through the communication bus and send the sensing information to the security module, where the sensing information is associated with the triggering of the airbag; the security module is used to send a second trigger instruction to the airbag ignition module and the peripheral driver module when the sensing information meets a first trigger condition; the communication bus module is used to receive a first trigger instruction through the communication bus and transmit the first trigger instruction to the airbag ignition module and the peripheral driver module; the airbag ignition module is used to send the first driving signal at at least one airbag driving port based on the first trigger instruction and the second trigger instruction; the peripheral driver module is used to send the second driving signal at at least one peripheral driving port based on the first trigger instruction and the second trigger instruction to drive the peripheral connected to the peripheral driving port corresponding to the second driving signal; the airbag ignition module is used to send the first driving signal to the airbag driving port indicated by both the first trigger instruction and the second trigger instruction; the peripheral driver module is used to send the second driving signal to the peripheral driving port indicated by both the first trigger instruction and the second trigger instruction; the airbag driving port is driven by a first high-side driver and a first low-side driver. When both the first high-side driver and the first low-side driver receive the first trigger instruction and the second trigger instruction, they drive the airbag driving port to send the first driving signal; The peripheral drive port is driven by a second high-side driver and a second low-side driver. When both the second high-side driver and the second low-side driver receive the first trigger instruction and the second trigger instruction, they drive the peripheral drive port to send a second drive signal.

2. The airbag ignition chip according to claim 1, characterized in that, The airbag ignition chip further includes a detection module. Wherein, the detection module is used to detect at least one of the following and send the detection result to an external controller through the communication bus module: Detect the power signal of the first power supply; Detect the power signal of the second power supply; Detect the power supply signal for the power management module to supply power to the airbag ignition module; Detect the power supply signal for the power management module to supply power to the peripheral drive module.

3. An airbag control system, characterized in that, The airbag control system includes: a controller and an airbag ignition chip. Wherein, the airbag ignition chip includes: a power management module, a communication bus module, an airbag ignition module, and a peripheral drive module. Among them, The controller is used to send a first trigger instruction to the communication bus module through the communication bus to indicate triggering the airbag and driving the peripheral device; The power management module is used to connect an external first power supply and a second power supply, charge the second power supply through the first power supply, and supply power to at least the airbag ignition module and the peripheral drive module through the second power supply; the first power supply includes an automotive power supply battery, and the second power supply includes a capacitor; when a vehicle collision occurs, the reliability of the second power supply is greater than that of the first power supply; The communication bus module is used to receive the first trigger instruction through the communication bus and transmit the first trigger instruction to the airbag ignition module and the peripheral drive module; The airbag ignition module is used to send a first drive signal at at least one airbag drive port based on at least the first trigger instruction to drive the airbag connected to the airbag drive port corresponding to the first drive signal; The peripheral drive module is used to send a second drive signal at at least one peripheral drive port based on at least the first trigger instruction to drive the peripheral device connected to the peripheral drive port corresponding to the second drive signal; The airbag ignition chip further includes a security module. The communication bus module is further used to receive the sensing information sent by an external sensor through the communication bus and send the sensing information to the security module, where the sensing information is associated with the triggering of the airbag; The security module is used to send a second trigger instruction to the airbag ignition module and the peripheral drive module when the sensing information meets the first trigger condition; The communication bus module is used to receive the first trigger instruction through the communication bus and transmit the first trigger instruction to the airbag ignition module and the peripheral drive module; The airbag ignition module is used to send the first drive signal at at least one airbag drive port based on the first trigger instruction and the second trigger instruction; The peripheral driver module is configured to send the second driving signal at at least one peripheral driver port based on the first trigger instruction and the second trigger instruction, so as to drive a peripheral connected to the peripheral driver port corresponding to the second driving signal; Specifically, the controller is configured to: Receive the sensing information sent by the external sensor; When the sensing information meets the second trigger condition, send the first trigger instruction to the communication bus module; The airbag ignition module is configured to send the first driving signal to an airbag driver port indicated by both the first trigger instruction and the second trigger instruction; The peripheral driver module is configured to send the second driving signal to a peripheral driver port indicated by both the first trigger instruction and the second trigger instruction.

4. The airbag control system according to claim 3, characterized in that, The airbag ignition chip further includes a detection module, wherein the detection module is configured to detect at least one of the following and send the detection result to the controller through the communication bus module: Detect the power signal of the first power supply; Detect the power signal of the second power supply; Detect the power supply signal for the power management module to supply power to the airbag ignition module; Detect the power supply signal for the power management module to supply power to the peripheral driver module; The controller is configured to send indication information based on the detection result to prompt the user.

5. An airbag system, characterized in that, The airbag system includes: The airbag ignition chip according to any one of claims 1 to 2; or The airbag control system according to any one of claims 3 to 4.

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