CN108791154B - Airbag control module and system - Google Patents
Airbag control module and system Download PDFInfo
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- CN108791154B CN108791154B CN201710307193.9A CN201710307193A CN108791154B CN 108791154 B CN108791154 B CN 108791154B CN 201710307193 A CN201710307193 A CN 201710307193A CN 108791154 B CN108791154 B CN 108791154B
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- airbag control
- control module
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- module
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- 238000010304 firing Methods 0.000 claims description 8
- 238000004146 energy storage Methods 0.000 claims description 6
- 230000007175 bidirectional communication Effects 0.000 claims description 2
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- 239000003999 initiator Substances 0.000 claims description 2
- 238000005474 detonation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 230000001133 acceleration Effects 0.000 description 9
- 101100245764 Arabidopsis thaliana PSI2 gene Proteins 0.000 description 3
- 101100245765 Arabidopsis thaliana PSI3 gene Proteins 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000008054 signal transmission Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0136—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
- B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Air Bags (AREA)
Abstract
The invention provides an airbag control module and a system, wherein the airbag control module comprises an operation assembly and a controller, the operation assembly receives one or more sensing signals from an external sensor in real time and transmits the sensing signals to the controller, and drives at least one ignition circuit to perform an ignition action based on an ignition control signal received from the controller so as to deploy a corresponding airbag, the controller determines whether an airbag ignition condition is met based on the sensing signals, and sends the ignition control signal to the operation assembly if the airbag ignition condition is met. The safety air bag control module and the safety air bag control system have high use flexibility, adaptability and expandability.
Description
Technical Field
The present invention relates to control modules and systems, and more particularly, to airbag control modules and systems.
Background
At present, with the increasing development and popularization of vehicles, it becomes more and more important to monitor accidents such as collision and the like occurring in the driving process of the vehicles in real time and trigger the safety airbags in time so as to avoid or reduce the physical injuries of passengers.
In prior art solutions, the deployment of an airbag is typically controlled in the following manner: an airbag controller having an acceleration sensor senses a current acceleration of a vehicle in real time, then determines whether an accident such as a collision occurs and a position or a direction thereof in conjunction with other state parameters of the vehicle, and triggers a corresponding airbag to deploy if it is determined that the accident such as the collision occurs.
However, the above prior art solutions have the following problems: (1) since the acceleration sensor for sensing the central acceleration is integrated in the airbag controller, the installation location of the airbag controller is limited, i.e., it must be installed at the central vehicle body, thereby having high requirements for vibration conditions and signal transmission circuits; (2) due to the singularization of the circuit structural form of the airbag controller, different demand-level solutions (e.g., a lower-level airbag controller including 1-2 ignition circuits, which are circuit circuits that cause the respective airbag to deploy by generating a momentary large current, and a higher-level airbag controller including 16 ignition circuits) use the same mechanical structure (e.g., the same connector, housing, substrate, etc.), resulting in lower adaptability and expandability.
Therefore, there is a need for: airbag control modules and systems are provided having increased flexibility, adaptability, and expandability.
Disclosure of Invention
In order to solve the problems of the prior art, the invention provides an airbag control module and an airbag control system with higher flexibility, adaptability and expandability.
According to an aspect of the present invention, there is provided an airbag control module including an operating assembly that receives one or more sensing signals from an external sensor in real time and transmits the sensing signals to a controller, and drives at least one ignition circuit to perform an ignition action based on an ignition control signal received from the controller to deploy a corresponding airbag, and a controller that determines whether an airbag ignition condition is satisfied based on the sensing signals, and transmits the ignition control signal to the operating assembly if the airbag ignition condition is satisfied.
According to another aspect of the invention, an airbag control system is proposed, which comprises only one airbag control module as described above.
According to yet another aspect of the present invention, another airbag control system is proposed, which comprises at least two airbag control modules as described above, wherein each airbag control module comprises two pairs of inter-module interconnection pins, and the at least two airbag control modules are connected together in series via the respective inter-module interconnection pins, wherein each of the at least two airbag control modules connected in series each independently operates to perform sensing signal collection and full airbag ignition condition discrimination operations.
According to yet another aspect of the present invention, there is provided another airbag control system comprising a master airbag control module which is an airbag control module as described above and which includes only one pair of inter-module interconnection pins, and at least one slave airbag control module which is also an airbag control module as described above, but each slave airbag control module includes two pairs of inter-module interconnection pins and the controller in each slave airbag control module does not perform an airbag ignition condition discriminating operation, wherein the master airbag control module and the at least one slave airbag control module are connected together in series via the respective inter-module interconnection pins. Wherein each of the at least one slave airbag control modules receives one or more sensing signals from an external sensor in real time and transmits the sensing signals to the master airbag control module via the inter-module interconnection pin, the master airbag control module receives the one or more sensing signals from the external sensor in real time, and only the controller in the master airbag control module determines whether an airbag ignition condition is satisfied based on the one or more sensing signals and the one or more sensing signals from each of the at least one slave airbag control modules.
The safety air bag control module and the safety air bag control system disclosed by the invention have the following advantages: (1) because the safety airbag control module does not comprise an acceleration sensor, the installation position of the safety airbag control module is not limited, thereby improving the use flexibility and reducing the cost; (2) since the individual airbag control modules can be combined as basic elements in any desired manner, the adaptability and the expandability are significantly improved.
Drawings
The features and advantages of the present invention will be better understood by those skilled in the art when considered in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic block diagram of an airbag control module according to an embodiment of the invention;
FIG. 2 is a schematic block diagram of an airbag control system according to an embodiment of the invention;
fig. 3 is a schematic structural view of an airbag control system according to another embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic structural view of an airbag control module according to an embodiment of the present invention. As shown in fig. 1, the airbag control module disclosed in the present invention includes an operation assembly 1 and a controller 2, the operation assembly 1 receives one or more sensing signals from an external sensor in real time and transmits the sensing signals to the controller 2, and drives at least one ignition circuit to perform an ignition action based on an ignition control signal received from the controller 2 to deploy a corresponding airbag, the controller 2 determines whether an airbag ignition condition is satisfied based on the sensing signals, and transmits the ignition control signal to the operation assembly 1 if the airbag ignition condition is satisfied.
Exemplarily, in one embodiment of the airbag control module disclosed in the present invention, the operating assembly 1 further includes a sensor interface unit 4, an inter-module interconnection unit 5, an ignition control unit 6, and a power supply unit 7, the sensor interface unit 4 receives a sensing signal from the external sensor via at least one sensor interface pin (e.g., 2 pins) and transmits the sensing signal to the controller 2, the inter-module interconnection unit 5 is connectable with at least one other airbag control module via at least one pair of inter-module interconnection pins (PSI 1, PSI2, PSI3, PSI 4) and is communicable with the other airbag control module via a preset bidirectional communication protocol, the ignition control unit 6 receives an ignition control signal from the controller 2 and drives at least one ignition loop pin based on the ignition control signal and via at least one pair of ignition loop pins connecting a detonator The ignition circuit performs an ignition operation, and the power supply unit 7 takes power from the outside via a power supply pin (VBAT) and a ground pin (GND) and supplies power to other components within the airbag control module.
Illustratively, in one embodiment of the airbag control module disclosed herein, the operating assembly 1 comprises four pairs of firing circuit pins, wherein each pair of firing circuit pins is capable of being connected to a different initiator to form a firing circuit, each firing circuit being used to trigger deployment of a corresponding airbag.
Illustratively, in one embodiment of the airbag control module disclosed herein, the airbag control module further comprises two bus pins CAN _ H and CAN _ L via which the controller 2 CAN read vehicle parameter information from and output data or instructions over an onboard CAN bus. Illustratively, when the controller 2 determines that a collision accident has occurred, it transmits commands such as unlocking the door, powering off and fuel-off, or uploads data such as collision information through the CAN bus. Illustratively, the controller 2 is capable of collecting and storing vehicle state information (such as accelerator pedal position, vehicle speed, brake pedal position, steering wheel information, mileage data, etc.) over the CAN bus for post-crash analysis.
Exemplarily, in one embodiment of the airbag control module disclosed in the present invention, the airbag control module further comprises an energy storage 3, the energy storage 3 being used to store electrical energy and to assist the ignition control unit 6 in providing a sufficiently high current to the ignition circuit to be driven to trigger the detonator to detonate during driving of the at least one ignition circuit to perform the ignition action. Thereby, the energy storage 3 can ensure that a sufficiently high current can still be provided to trigger the detonator to detonate when the power supply fails or is switched off.
Exemplarily, in one embodiment of the airbag control module disclosed herein, the energy storage 3 is a capacitor.
Illustratively, in one embodiment of the disclosed airbag control module, the external sensors include, but are not limited to, acceleration sensors and/or pressure sensors.
Illustratively, in one embodiment of the disclosed airbag control module, the airbag control module includes two pairs of inter-module interconnect pins (PSI 1, PSI2, PSI3, PSI 4) and is capable of directly connecting and communicating with two other airbag control modules via the two pairs of inter-module interconnect pins.
Illustratively, in one embodiment of the airbag control module disclosed herein, the operating assembly 1 is an Application Specific Integrated Circuit (ASIC).
Illustratively, in one embodiment of the airbag control module disclosed herein, the operating assembly 1 and the controller 2 communicate via the SPI (serial peripheral interface) protocol.
Illustratively, in one embodiment of the disclosed airbag control module, the controller 2 is a microprocessor or microcontroller, or any other type of control unit.
Illustratively, in one embodiment of the disclosed airbag control module, the controller 2 determines whether the airbag ignition condition is satisfied in the following manner: it is determined whether the value of the one or more sensing signals received, such as acceleration signals and/or pressure signals, is greater than a predetermined threshold value, and if the value of the one or more sensing signals is greater than the predetermined threshold value, it is determined that an airbag ignition condition is currently satisfied (i.e. it is determined that a crash event has occurred), and one or more target airbags that need to be deployed are determined according to the crash direction indicated by the one or more sensing signals, whereupon an ignition control signal is sent to the operating assembly 1 to trigger the deployment of the one or more target airbags.
An airbag control system is also disclosed which, in one embodiment of the disclosed airbag control system, includes only one airbag control module as explained above with reference to fig. 1.
Fig. 2 is a schematic configuration diagram of an airbag control system according to an embodiment of the invention. In one embodiment of the disclosed airbag control system, as shown in fig. 2, the airbag control system includes at least two airbag control modules as explained above with reference to fig. 1, wherein each airbag control module includes two pairs of inter-module interconnect pins (PSI 1, PSI2, PSI3, PSI 4), and the at least two airbag control modules are connected together in series via respective inter-module interconnect pins.
Illustratively, as shown in fig. 2, in one embodiment of the airbag control system disclosed herein, each of the at least two serially connected airbag control modules operates independently to perform sensing signal collection and full airbag ignition condition determination operations (i.e., control the driving of the respectively controlled ignition circuit and the deployment of the corresponding airbag independently from each other, without interfering with each other).
Illustratively, as shown in FIG. 2, in one embodiment of the disclosed airbag control system, any two of the at least two airbag control modules connected in series can communicate with each other directly or indirectly via the inter-module interconnect pin to exchange vehicle configuration information.
Illustratively, in one embodiment of the airbag control system disclosed herein, any two of the at least two airbag control modules connected in series communicate between each other based on PSI protocol, as shown in fig. 2.
Fig. 3 is a schematic structural view of an airbag control system according to another embodiment of the present invention. In another embodiment of the disclosed airbag control system, as shown in fig. 3, the airbag control system includes a master airbag control module, which is an airbag control module as explained above with reference to fig. 1, including only one pair of inter-module interconnect pins, and at least one slave airbag control module, each of which is an airbag control module as explained above with reference to fig. 1, but does not include bus pins CAN _ H and CAN _ L and includes two pairs of inter-module interconnect pins, and the master airbag control module and the at least one slave airbag control module are connected together in series via the respective inter-module interconnect pins.
Illustratively, as shown in fig. 3, in another embodiment of the airbag control system disclosed herein, each of the at least one slave airbag control modules receives one or more sensing signals from external sensors in real time and transmits the sensing signals to the master airbag control module via the inter-module interconnection pin (i.e., the controller in each slave airbag control module does not perform the airbag ignition condition discriminating operation).
Illustratively, in another embodiment of the disclosed airbag control system, as shown in fig. 3, the master airbag control module receives one or more sensing signals from external sensors in real time, and only the controller in the master airbag control module determines whether an airbag ignition condition is satisfied based on the one or more sensing signals and one or more sensing signals from each of the at least one slave airbag control modules.
Illustratively, as shown in fig. 3, in another embodiment of the airbag control system disclosed herein, after the controller in the master airbag control module determines that the airbag ignition condition is satisfied, the controller in the master airbag control module determines one or more target airbags that need to be deployed according to the collision direction indicated by the sensing signal, and then sends an ignition control signal to an airbag control module (whether the master airbag control module or the at least one slave airbag control module) responsible for supervising the one or more target airbags to trigger the one or more target airbags to be deployed (e.g., if a point pre-explosion airbag is desired, then sends an instruction to an airbag control module (typically the master airbag control module) connected to the front airbag, a point-explosion side airbag is desired, an instruction is given to the airbag control module (typically the slave airbag control module) to which the side airbag is connected).
Illustratively, in another embodiment of the airbag control system disclosed herein, any two of the serially connected master airbag control module and at least one slave airbag control module are capable of communicating with each other directly or indirectly via the inter-module interconnect pin to exchange vehicle configuration information, as shown in fig. 3.
Illustratively, as shown in fig. 3, in another embodiment of the disclosed airbag control system, the master airbag control module can be configured (e.g., initially programmed) before it is actually used so that it knows the airbag control module configuration information (such as which slave airbag control modules to include, and which slave airbag control modules to monitor, etc.).
Illustratively, in another embodiment of the disclosed airbag control system, as shown in FIG. 3, only the master airbag control module is able to read vehicle parameter information from and output data or commands over the on-board CAN bus via bus pins CAN _ H and CAN _ L. Illustratively, when the main airbag control module judges that a collision accident occurs, the main airbag control module sends commands such as unlocking a vehicle door, powering off and fuel cut or uploads data such as collision information through the CAN bus. Illustratively, the master airbag control module is capable of collecting and storing vehicle status information (such as accelerator pedal position, vehicle speed, brake pedal position, steering wheel information, mileage data, etc.) over the CAN bus for post-crash analysis.
Illustratively, in another embodiment of the disclosed airbag control system, as shown in FIG. 3, the main airbag control module determines whether an airbag ignition condition is met by: it is determined whether the values of the received sensing signals (from the master airbag control module and from the slave airbag control modules, such as acceleration signals and/or pressure signals, etc.) are greater than a predetermined threshold, and if the values of the one or more sensing signals are greater than the predetermined threshold, it is determined that the airbag ignition condition is currently satisfied (i.e., it is determined that a crash event has occurred).
From the above, the airbag control module and the airbag control system disclosed by the invention have at least the following advantages: (1) because the safety airbag control module does not comprise an acceleration sensor, the installation position of the safety airbag control module is not limited, thereby improving the use flexibility and reducing the cost; (2) since the individual airbag control modules can be combined as basic elements in any desired manner, the adaptability and the expandability are significantly improved.
Although the present invention has been described in connection with the preferred embodiments, its mode of implementation is not limited to the embodiments described above. It should be appreciated that: various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention.
Claims (20)
1. An airbag control module comprising an operating assembly that receives one or more sensing signals from an external sensor in real time and transmits the sensing signals to a controller, and drives at least one ignition circuit to perform an ignition action to deploy a corresponding airbag based on an ignition control signal received from the controller, and a controller that determines whether an airbag ignition condition is satisfied based on the sensing signals, and transmits the ignition control signal to the operating assembly if the airbag ignition condition is satisfied.
2. The airbag control module of claim 1, wherein the operational assembly further includes a sensor interface unit that receives a sensing signal from the external sensor via at least one sensor interface pin and transmits the sensing signal to the controller, an inter-module interconnection unit that is connectable with at least another airbag control module via at least one pair of inter-module interconnection pins and is communicable with the another airbag control module via a preset bidirectional communication protocol, an ignition control unit that receives an ignition control signal from the controller and drives at least one ignition circuit to perform an ignition action based on the ignition control signal and via at least one pair of ignition circuit pins connecting a squib, the power supply unit takes power from the outside and supplies power to other components within the airbag control module via a power pin and a ground pin.
3. The airbag control module of claim 2, wherein the operational assembly comprises four pairs of firing circuit pins, wherein each pair of firing circuit pins is connectable to a different initiator to form a firing circuit, each firing circuit being used to trigger deployment of a corresponding airbag.
4. The airbag control module of claim 3 further comprising an energy storage used to store electrical energy and assist the ignition control unit in providing a sufficiently high current to the ignition circuit to be actuated to trigger detonation of a detonator during actuation of the at least one ignition circuit to effect an ignition action.
5. The airbag control module of claim 4, wherein the controller determines whether the airbag ignition condition is satisfied by: determining whether the value of the one or more sensing signals received is greater than a predetermined threshold, and if the value of the one or more sensing signals is greater than the predetermined threshold, determining that an airbag ignition condition is currently satisfied, and determining one or more target airbags that need to be deployed according to a collision direction indicated by the one or more sensing signals, and then sending an ignition control signal to the operating component to trigger the one or more target airbags to be deployed.
6. The airbag control module of claim 5 further comprising two bus pins CAN _ H and CAN _ L via which the controller CAN read vehicle parameter information from and output data or commands over an on-board CAN bus.
7. The airbag control module of claim 6, wherein the energy storage is a capacitor.
8. The airbag control module of claim 7, wherein the airbag control module comprises two pairs of inter-module interconnect pins and is capable of directly connecting and communicating with two other airbag control modules via the two pairs of inter-module interconnect pins.
9. The airbag control module of claim 8, wherein the operational component is an Application Specific Integrated Circuit (ASIC).
10. An airbag control system comprising at least two airbag control modules as claimed in any of claims 1 to 6, wherein each airbag control module comprises two pairs of inter-module interconnect pins and the at least two airbag control modules are connected together in series via respective inter-module interconnect pins.
11. The airbag control system of claim 10, wherein each of the at least two airbag control modules connected in series each independently operate to perform sensing signal collection and full airbag ignition condition discrimination operations.
12. The airbag control system of claim 11, wherein any two of the at least two airbag control modules connected in series are capable of communicating with each other directly or indirectly via the inter-module interconnect pin to exchange vehicle configuration information.
13. An airbag control system comprising a master airbag control module and at least one slave airbag control module, the master airbag control module is an airbag control module as claimed in any one of claims 1 to 4, comprising only a pair of inter-module interconnect pins, each of said at least one slave airbag control module being an airbag control module as claimed in any one of claims 1 to 4, but each slave airbag control module includes two pairs of inter-module interconnection pins and the controller in each slave airbag control module does not perform the airbag ignition condition discriminating operation, wherein the master airbag control module and the at least one slave airbag control module are connected together in series via respective inter-module interconnect pins.
14. The airbag control system of claim 13, wherein each of the at least one slave airbag control modules receives one or more sensing signals from an external sensor in real time and transmits the sensing signals to the master airbag control module via the inter-module interconnect pin.
15. The airbag control system of claim 14, wherein the master airbag control module receives one or more sensing signals from external sensors in real time, and only the controller in the master airbag control module determines whether the airbag ignition condition is satisfied based on the one or more sensing signals and one or more sensing signals from each of the at least one slave airbag control modules.
16. The airbag control system of claim 15 wherein the master airbag control module further comprises two bus pins CAN _ H and CAN _ L, the controller being capable of reading vehicle parameter information from and outputting data or commands over an on-board CAN bus via the bus pins CAN _ H and CAN _ L.
17. The airbag control system of claim 16, wherein after the controller in the main airbag control module determines that the airbag ignition condition is satisfied, the controller in the main airbag control module determines one or more target airbags that need to be deployed according to the collision direction indicated by the sensing signal, and then sends an ignition control signal to an airbag control module responsible for supervising the one or more target airbags to trigger the one or more target airbags to be deployed.
18. An airbag control system as in claim 17 wherein the main airbag control module can be configured to be aware of airbag control module configuration information before it is actually used.
19. The airbag control system of claim 18, wherein only the master airbag control module is capable of reading vehicle parameter information from and outputting data or commands over an on-board CAN bus via bus pins CAN _ H and CAN _ L.
20. An airbag control system comprising only one airbag control module as claimed in any one of claims 1-9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710307193.9A CN108791154B (en) | 2017-05-04 | 2017-05-04 | Airbag control module and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710307193.9A CN108791154B (en) | 2017-05-04 | 2017-05-04 | Airbag control module and system |
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| CN108791154A CN108791154A (en) | 2018-11-13 |
| CN108791154B true CN108791154B (en) | 2022-06-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3858870B2 (en) * | 2003-08-05 | 2006-12-20 | トヨタ自動車株式会社 | Activation control device for occupant protection device |
| CN201784567U (en) * | 2010-04-30 | 2011-04-06 | 比亚迪股份有限公司 | ECU of SRS |
| JP5532078B2 (en) * | 2012-05-23 | 2014-06-25 | 株式会社デンソー | Crew protection device |
| DE102012216529B4 (en) * | 2012-09-17 | 2020-09-17 | Robert Bosch Gmbh | Method for triggering at least one personal protection device as well as system and computer program product for carrying out the method |
| CN104786977B (en) * | 2014-01-17 | 2017-08-22 | 比亚迪股份有限公司 | Air bag system |
| US9457761B2 (en) * | 2014-05-28 | 2016-10-04 | Raytheon Company | Electrically controlled variable force deployment airbag and inflation |
| CN104118383A (en) * | 2014-07-21 | 2014-10-29 | 镇江洋溢汽车部件有限公司 | Supplemental restraint system |
| CN204077392U (en) * | 2014-07-23 | 2015-01-07 | 上海禾未新能源科技有限公司 | The safety device of batteries of electric automobile group collision active safety feature, electronlmobil |
| CN106585545A (en) * | 2016-11-18 | 2017-04-26 | 成都渔夫科技有限公司 | Air bag control device for judging protecting types based on weight |
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