CN117508085A - Self-adaptive active safety belt system and working method - Google Patents
Self-adaptive active safety belt system and working method Download PDFInfo
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- CN117508085A CN117508085A CN202311745148.3A CN202311745148A CN117508085A CN 117508085 A CN117508085 A CN 117508085A CN 202311745148 A CN202311745148 A CN 202311745148A CN 117508085 A CN117508085 A CN 117508085A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- 210000003205 muscle Anatomy 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims description 58
- 230000003044 adaptive effect Effects 0.000 claims description 19
- 230000005484 gravity Effects 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000004904 shortening Methods 0.000 claims description 2
- 238000011017 operating method Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003183 myoelectrical effect Effects 0.000 description 1
- 230000004962 physiological condition Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
- B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
- B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
- B60R2022/4666—Reels with means to tension the belt in an emergency by forced winding up characterised by electric actuators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
- B60R2022/4808—Sensing means arrangements therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
The invention belongs to the technical field of safety belts, and particularly relates to a self-adaptive active safety belt system and a working method thereof, wherein the self-adaptive active safety belt system comprises a motor pretensioner, a webbing sensor module and a retractor unit; the motor pretensioner comprises a motor and a motor pretensioner control unit; the motor is connected with the motor pretensioner control unit through a cable; the webbing sensor module comprises an occupant muscle electrical signal sensor and a webbing displacement sensor; the muscle electric signal sensor and the webbing displacement sensor of the occupant of the webbing sensor module are connected with the motor pretensioner through a CAN bus, and the muscle electric signal sensor and the webbing displacement sensor are connected through a cable; the retractor comprises a retractor control unit, a force limiting rod and a pretensioner; the retractor is connected with the motor pretensioner through the CAN bus, and the retractor control unit, the force limiting rod and the pretensioner are connected through cables. By arranging the webbing sensor module, the information monitored by the vehicle passenger information monitoring module can be directly transmitted to the motor pretensioner and the retractor unit.
Description
Technical Field
The invention belongs to the technical field of safety belts, and particularly relates to a self-adaptive active safety belt system and a working method thereof.
Background
In the current trend of the automobile industry, vehicle safety is still an important field of concern, and particularly active safety of vehicles has been used in more and more vehicles. How to combine the conventional passive safety device with the active safety technology is a major problem at present, for example, the dislocation problem caused by an automatic emergency brake system (AEB) puts new demands on the conventional safety belt. The existing active safety belt can effectively prevent AEB from leaving, but has different protection effects on the active safety belt of passengers with different physiological conditions and different in-situ reactions, for example, the protection effect is poor after the active safety belt is used by weak people such as children, women and the like, and the active safety belt is easy to be damaged.
In the chinese patent application of application No. CN201811177059.2, the seat belt apparatus determines the vehicle safety state from the vehicle running information to check whether the airbag is activated, but the vehicle information does not include information such as the weight and age of the vehicle-mounted person, and the webbing adjustment cannot be performed according to the occupant condition.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a self-adaptive active safety belt system and a working method thereof, so as to solve the problem that the safety belt cannot be perceived according to the type of an occupant.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
in a first aspect, the present invention provides an adaptive active seat belt system comprising: a motor pretensioner, a webbing sensor module, and a retractor unit;
the motor pretensioner comprises a motor and a motor pretensioner control unit;
the motor is connected with the motor pretensioner control unit through a cable;
the webbing sensor module comprises an occupant muscle electrical signal sensor and a webbing displacement sensor;
the muscle electric signal sensor and the webbing displacement sensor of the occupant of the webbing sensor module are connected with the motor pretensioner through a CAN bus, and the muscle electric signal sensor and the webbing displacement sensor are connected through a cable;
the retractor comprises a retractor control unit, a force limiting rod and a pretensioner;
the retractor is connected with the motor pretensioner through the CAN bus, and the retractor control unit, the force limiting rod and the pretensioner are connected through cables.
Further, the method further comprises the following steps: a vehicle information detection module;
the electronic stability control system, the speed auxiliary system, the lane auxiliary keeping system and the automatic emergency braking system of the vehicle information detection module are connected with the motor pretensioner through a CAN bus, the air bag system of the vehicle information detection module is connected with the retractor through a CAN bus, and the air bag system, the electronic stability control system, the speed auxiliary system, the lane auxiliary keeping system and the automatic emergency braking system are connected through cables.
Further, the method further comprises the following steps: an occupant detection module;
the passenger detection module comprises an in-vehicle camera;
and the in-vehicle camera of the passenger detection module is connected with a motor pretensioner control unit of the motor pretensioner through a CAN bus.
Further, the method further comprises the following steps: a seat sensor module;
the seat sensor module includes a seat angle sensor;
the angle sensor of the seat sensor module is connected with the motor pretensioner control unit of the motor pretensioner through the CAN bus.
In a second aspect, the present invention provides a method of adaptive active seat belt operation, based on an adaptive active seat belt system, comprising:
the motor early warning control unit collects control targets through the vehicle information detection module, the passenger detection module, the seat sensor module and the webbing sensor module to serve as first control targets; the retractor control unit collects control targets through the vehicle information detection module, the passenger detection module and the seat sensor module;
when the motor early warning device control unit judges whether the automatic emergency braking system works or not, the automatic emergency braking system continues to collect control target information when no working instruction is sent out by the automatic emergency braking system; when the automatic emergency braking system sends out a working instruction, the motor pretensioner control unit calculates a motor pretensioner value and time through the input of control targets of the vehicle information detection module, the passenger detection module, the seat sensor module and the webbing sensor module, adjusts the motor pretensioner value and outputs the motor pretensioner value to the motor;
when the retractor control unit judges whether the air bag system works or not, if the air bag system sends out the pre-ignition information, continuing to collect control target information; when the pre-ignition information sent by the air bag system is yes, the control unit of the retractor collects the information of passengers in the vehicle through the passenger detection module, a basic force limiting value and a pre-tightening force value are determined, then the force limiting value and the pre-tightening force value are adjusted according to the seat angle information of the seat sensor module, and the force limiting value and the pre-tightening force value are output to the force limiting rod and the pre-tightening device.
Further, when the vehicle speed is below the road speed limit, the motor will not operate; when the vehicle speed is equal to the road speed limit value or not higher than the road limit value by 20km/h, the force exerted by the motor is smaller than the gravity; when the vehicle speed is higher than the road speed limit value by more than 20km/h, the force exerted by the motor is more than or equal to gravity.
Further, the vehicle information detection module is used for detecting measurement information; the detecting vehicle information includes: vehicle roll angle, vehicle steering angle, vehicle travel speed, road speed limit condition, line pressing condition and front vehicle distance.
Further, the current vehicle running state is obtained through the vehicle roll angle and the vehicle steering angle, and whether the vehicle collides or not is judged according to the vehicle running speed and the road speed limit condition.
Further, the occupant detection module is used for detecting member information; the member information includes a weight of the occupant.
Further, the motor pretensioner control unit can pre-adjust the motor pretensioning force and the pretensioning moment based on the passenger information of the passenger detection module; the pre-adjustment of the motor pre-tightening force comprises the step of increasing or decreasing the pre-tightening force according to the passenger detection module; the pre-adjusting of the pretension time includes shortening or lengthening the pretension time in accordance with the occupant detection module.
The invention has at least the following beneficial effects:
1. the present invention provides an adaptive active seat belt system comprising: a motor pretensioner, a webbing sensor module, and a retractor unit; the motor pretensioner comprises a motor and a motor pretensioner control unit; the motor is connected with the motor pretensioner control unit through a cable; the webbing sensor module comprises an occupant muscle electrical signal sensor and a webbing displacement sensor; the muscle electric signal sensor and the webbing displacement sensor of the occupant of the webbing sensor module are connected with the motor pretensioner through a CAN bus, and the muscle electric signal sensor and the webbing displacement sensor are connected through a cable; the retractor comprises a retractor control unit, a force limiting rod and a pretensioner; the retractor is connected with the motor pretensioner through the CAN bus, and the retractor control unit, the force limiting rod and the pretensioner are connected through cables. By arranging the webbing sensor module, the information monitored by the vehicle passenger information monitoring module can be directly transmitted to the motor pretensioner and the retractor unit;
2. the invention provides a self-adaptive active safety belt working method, which comprises the following steps: the motor early warning control unit collects control targets through the vehicle information detection module, the passenger detection module, the seat sensor module and the webbing sensor module to serve as first control targets; the retractor control unit collects control targets through the vehicle information detection module, the passenger detection module and the seat sensor module to serve as second control targets; when the motor early warning device control unit judges whether the automatic emergency braking system works or not, the automatic emergency braking system continuously collects first control target information when no working instruction is sent out by the automatic emergency braking system; when the automatic emergency braking system sends out a working instruction, the motor pretensioner control unit calculates a motor pretensioner value and time through the input of a second control target of the vehicle information detection module, the passenger detection module, the seat sensor module and the webbing sensor module, adjusts the motor pretensioner value and outputs the motor pretensioner value to the motor; when the retractor control unit judges whether the safety airbag system works or not, if the full airbag system sends out the pre-ignition information, the control target information is continuously collected; when the full airbag system sends out the pre-ignition information, the control unit of the retractor collects the information of passengers in the vehicle through the passenger detection module, the basic force limiting value and the pre-tightening force value are determined according to the information of the passengers, then the force limiting value and the pre-tightening force value are adjusted according to the seat angle information of the seat sensor module, and the force limiting value and the pre-tightening force value are output to the force limiting rod and the pre-tightening device. And the motor early warning device control unit and the retractor control unit are used for simultaneously controlling target information collection, calculating the pretightening force and improving the working accuracy of the retractor unit.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a block diagram of an adaptive active seat belt system and method of operation of the present invention;
FIG. 2 is a schematic diagram of an adaptive active seat belt system and method of operation according to an embodiment of the present invention;
FIG. 3 is a control flow diagram of an adaptive active seat belt system and method of operation of the present invention.
Wherein: 10. a motor pretensioner; 110. a motor; 120. a motor pretensioner control unit; 20. a vehicle information detection module; 210. an airbag system; 220. an electronic stability control system; 230. a speed assist system; 240. a lane assist maintenance system; 250. an automatic emergency braking system; 30. an occupant detection module; 310. in-car camera; 40. a seat sensor module; 410. a seat angle sensor; 50. a webbing sensor module; 510. an occupant muscle electrical signal sensor; 520. a webbing displacement sensor; 60. a retractor; 610. a retractor control unit; 620. a force limiting rod; 630. a pretensioner.
Detailed Description
The invention will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The following detailed description is exemplary and is intended to provide further details of the invention. Unless defined otherwise, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention.
Example 1
Referring to fig. 1 to 2, the present invention provides an adaptive active seat belt system, comprising: the motor pretensioner 10, the motor 110, the motor pretensioner control unit 120, the vehicle information detection module 20, the airbag system 210, the electronic stability control system 220, the speed assist system 230, the lane assist system 240, the automatic emergency brake system 250, the occupant detection module 30, the in-vehicle camera 310, the seat sensor module 40, the seat angle sensor 410, the webbing sensor module 50, the occupant myoelectric signal sensor 510, the webbing displacement sensor 520, the retractor unit 60, the retractor control unit 610, the force limiting lever 620, and the pretensioner 630.
The motor pretensioner 10 includes a motor pretensioner control unit 120 and a motor 110, and receives information of the vehicle information detection module 20, the occupant detection module 30, the seat sensor module 40, and the webbing sensor module 50 through the motor pretensioner control unit 120 to control the motor 110, thereby determining different motor pretension values and pretension moments of the collision.
The vehicle information detection module 20 may sense a vehicle, a pedestrian, a two-wheeled vehicle, and an obstacle in front of the own vehicle, may detect real-time operating condition information of the own vehicle, such as one or more of a vehicle speed, vehicle traveling road surface information, airbag ignition information, and vehicle automatic emergency braking information, and may provide the sensed information to the motor pretensioner 10 and the retractor 60. The vehicle information detection module may thus include one or more of an airbag system 210, an electronic stability control system 220, a speed assist system 230, a lane assist maintenance system 240, and an automatic emergency braking system 250. The airbag system 210 may acquire a vehicle pre-crash signal and transmit the signal to the retractor control unit 610. The retractor control unit 610 can acquire the operation time information based on the airbag 210 pre-crash signal. The electronic stability control system 220 may sense road surface information under vehicle driving conditions and vehicle driving state information, including understeer or oversteer, and transmit the sensed information to the motor pretensioner control unit 120. The motor pretensioner control unit 120 may determine the probability of a collision of the vehicle and the posture of the vehicle when the collision occurs based on the vehicle driving state information sensed by the electronic stability control system 220, so as to calculate the correct motor pretension value and pretension time. For example, when the vehicle is traveling on snow, frozen ground, etc., the motor pretensioner control unit 120 will control the motor 110 to reduce the amount of occupant dislocation in conjunction with the webbing displacement sensor 520. The speed assist system 230 may sense speed values of the vehicle under different conditions, including the current road maximum speed limit, and communicate the information to the motor pretensioner control unit 120. The lane assist system 240 may acquire lane information during the running of the vehicle, and the motor pretensioner control unit 120 may restrict the occupant in advance based on the above lane information. For example, in the case where the vehicle is out of the lane a plurality of times in a short time. The automatic emergency braking system 250 may automatically perform braking while measuring a distance between a vehicle and a pedestrian, a two-wheeled vehicle, or an obstacle through a vehicle radar, an off-board camera, or the like, and in case of less than a safe distance.
Example 2
Referring to fig. 3, the present invention provides a method for operating an adaptive active seat belt, in which a motor pretensioner control unit 120 collects control targets through a vehicle information detection module 20, an occupant detection module 30, a seat sensor module 40, and a webbing sensor module 50, and a retractor control unit 610 collects control targets through the vehicle information detection module 20, the occupant detection module 30, and the seat sensor module 40 in step S10.
After the control target information is collected in step S10, the motor pretensioner control unit 120 and the retractor control unit 610 in step S210 may determine whether to operate based on the automatic emergency braking system 250 information and the airbag system 210 information in the collected control target information, respectively, and when the automatic emergency braking system 250 does not issue an operation instruction or the airbag system 210 does not issue a pre-ignition signal, the result is no, the process returns to step S10 to continue collecting the control target information, and when the automatic emergency braking system 250 issues an operation instruction or the airbag system 210 issues a pre-ignition signal, the result is yes, the processes respectively enter steps S310 and S320.
In step S310, the motor pretensioner control unit 120 calculates a motor pretensioner value and time by inputting other control targets. Wherein the occupant detection module 30 will input basic information, on the basis of which other module information is adjusted; the webbing displacement sensor 520 and seat sensor module 40 information will be combined as second level information for calculation; the information of the electronic stability control system 220, the speed assist system 230, the lane assist maintenance system 240 will be added to the calculation as the information of the third hierarchy; finally, the occupant muscle electrical signal sensor 510 will send a signal simultaneously with the automatic emergency braking system 250 to adjust the motor pretightening force value and output to the motor 110.
In step S320, the retractor control unit 610 collects occupant information in the vehicle through the occupant detection module 30, determines a basic force limit value and a pretensioner value, then adjusts the force limit value and the pretensioner value according to the seat angle information of the seat sensor module 40, and outputs the force limit value and the pretensioner 630 to the force limit lever 620.
It will be appreciated by those skilled in the art that the present invention can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the invention or equivalents thereto are intended to be embraced therein.
Finally, it should be noted that: the above embodiments are only for illustrating the technical aspects of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill in the art that: modifications and equivalents may be made to the specific embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.
Claims (10)
1. An adaptive active seat belt system, comprising: a motor pretensioner (10), a webbing sensor module (50) and a retractor unit (60);
the motor pretensioner (10) comprises a motor (110) and a motor pretensioner control unit (120);
the motor (110) is connected with the motor pretensioner control unit (120) through a cable;
the webbing sensor module (50) includes an occupant muscle electrical signal sensor (510) and a webbing displacement sensor (520);
an occupant muscle electrical signal sensor (510) and a webbing displacement sensor (520) of the webbing sensor module (50) are connected with the motor pretensioner (10) through a CAN bus, and the muscle electrical signal sensor (510) and the webbing displacement sensor (520) are connected through a cable;
the retractor (60) comprises a retractor control unit (610), a force limiting rod (620) and a pretensioner (630);
the retractor (60) is connected with the motor pretensioner (10) through a CAN bus, and the retractor control unit (610), the force limiting rod (620) and the pretensioner (630) are connected through cables.
2. The adaptive active seat belt system of claim 1, further comprising: a vehicle information detection module (20);
the vehicle information detection module (20) includes an airbag system (210), an electronic stability control system (220), a speed assist system (230), a lane assist maintenance system (240), and an automatic emergency braking system (250);
the electronic stability control system (220), the speed auxiliary system (230), the lane auxiliary keeping system (240) and the automatic emergency braking system (250) of the vehicle information detection module (20) are connected with the motor pretensioner (10) through a CAN bus, the air bag system (210) of the vehicle information detection module (20) is connected with the retractor (60) through the CAN bus, and the air bag system (210), the electronic stability control system (220), the speed auxiliary system (230), the lane auxiliary keeping system (240) and the automatic emergency braking system (250) are connected through cables.
3. The adaptive active seat belt system of claim 1, further comprising: an occupant detection module (30);
the occupant detection module (30) includes an in-vehicle camera (310);
the in-vehicle camera (310) of the passenger detection module (30) is connected with the motor pretensioner control unit (120) of the motor pretensioner (10) through a CAN bus.
4. The adaptive active seat belt system of claim 1, further comprising: a seat sensor module (40);
the seat sensor module (40) includes a seat angle sensor (410);
the angle sensor (410) of the seat sensor module (40) is connected with the motor pretensioner control unit (120) of the motor pretensioner (10) through a CAN bus.
5. An adaptive active seat belt operating method, comprising:
the motor early warning control unit (120) collects control targets through the vehicle information detection module (20), the passenger detection module (30), the seat sensor module (40) and the webbing sensor module (50) as first control targets; the retractor control unit (610) collects control targets as second control targets by the vehicle information detection module (20), the occupant detection module (30), and the seat sensor module (40);
when the motor early warning device control unit (120) judges whether the automatic emergency braking system (250) works or not, the automatic emergency braking system (250) continues to collect first control target information when no working instruction is sent out; when the automatic emergency braking system (250) sends out a working instruction, the motor pretensioner control unit (120) calculates a motor pretensioner value and time through the input of a second control target of the vehicle information detection module (20), the passenger detection module (30), the seat sensor module (40) and the webbing sensor module (50), adjusts the motor pretensioner value and outputs the motor pretensioner value to the motor (110);
when the retractor control unit (610) judges whether the air bag system (210) works or not, the air bag system (210) continuously collects control target information when the pre-ignition information sent by the air bag system (210) is negative; when the pre-ignition information sent by the air bag system (210) is yes, the retractor control unit (610) collects passenger information in the vehicle through the passenger detection module (30), a basic force limiting value and a pre-tightening force value are determined according to the passenger information, then the force limiting value and the pre-tightening force value are adjusted according to the seat angle information of the seat sensor module (40), and the force limiting value and the pre-tightening force value are output to the force limiting rod (620) and the pre-tightening device (630).
6. An adaptive active seat belt operation method according to claim 5, characterized in that the motor (110) will not be operated when the vehicle speed is below the road speed limit; when the vehicle speed is equal to or not higher than the road speed limit value by 20km/h, the force exerted by the motor (110) is smaller than the gravity; when the vehicle speed is higher than the road speed limit value by more than 20km/h, the force exerted by the motor (110) is more than or equal to gravity.
7. The adaptive active seat belt operation method according to claim 5, wherein the vehicle information detection module (20) is configured to detect vehicle information; the vehicle information includes: vehicle roll angle, vehicle steering angle, vehicle travel speed, road speed limit condition, line pressing condition and front vehicle distance.
8. The adaptive active seat belt operation method according to claim 7, wherein the current vehicle running state is obtained by a vehicle roll angle and a vehicle steering angle; and judging whether the vehicle collides according to the running speed of the vehicle and the road speed limit condition.
9. The adaptive active seat belt operation method according to claim 5, wherein the occupant detection module (30) is configured to detect member information; the member information includes a weight of the occupant.
10. The adaptive active seat belt operation method according to claim 9, wherein the motor pretensioner control unit (120) pre-adjusts the motor pretensioning force and the pretensioning timing based on occupant information of the occupant detection module (30); the pre-adjustment of the motor pre-tightening force comprises the step of increasing or decreasing the pre-tightening force according to the passenger detection module; the pre-adjusting of the pretension time includes shortening or lengthening the pretension time in accordance with the occupant detection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311745148.3A CN117508085A (en) | 2023-12-18 | 2023-12-18 | Self-adaptive active safety belt system and working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311745148.3A CN117508085A (en) | 2023-12-18 | 2023-12-18 | Self-adaptive active safety belt system and working method |
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| Publication Number | Publication Date |
|---|---|
| CN117508085A true CN117508085A (en) | 2024-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311745148.3A Pending CN117508085A (en) | 2023-12-18 | 2023-12-18 | Self-adaptive active safety belt system and working method |
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| Country | Link |
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| CN (1) | CN117508085A (en) |
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2023
- 2023-12-18 CN CN202311745148.3A patent/CN117508085A/en active Pending
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