CN111559335A - Pre-tightening safety belt ignition strategy control method - Google Patents
Pre-tightening safety belt ignition strategy control method Download PDFInfo
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- CN111559335A CN111559335A CN202010314376.5A CN202010314376A CN111559335A CN 111559335 A CN111559335 A CN 111559335A CN 202010314376 A CN202010314376 A CN 202010314376A CN 111559335 A CN111559335 A CN 111559335A
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- seat
- safety belt
- control method
- signal
- seatbelt
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000006260 foam Substances 0.000 claims abstract description 4
- 238000010304 firing Methods 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 7
- 230000001133 acceleration Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 4
- 101100000587 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) acu-3 gene Proteins 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
Images
Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
-
- 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
-
- 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
- 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
- B60R2021/01013—Means for detecting collision, impending collision or roll-over
-
- 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
- B60R2021/26029—Ignitors
-
- 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
-
- 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
- B60R2022/4858—Sensing means arrangements therefor for sensing pressure on seat
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Automation & Control Theory (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
The invention discloses a pre-tightening safety belt ignition strategy control method which comprises a seat, wherein a safety belt lock sensor is arranged at a safety belt lock position on one side of the seat, a seat cushion pressure sensor is arranged between seat cushion foam and a seat basin of the seat, an air bag control unit ACU is arranged on a middle channel on one side of the seat, and a pre-tightening safety belt assembly is arranged on a B column on the other side of the seat. The scheme has the advantages of simple structure and low cost, can be easily realized on a mass production vehicle provided with the safety belt unbuckled reminding and the pre-tightening safety belt without adding new hardware equipment, and is simple, safe and reliable; the maintenance cost after the accident can be reduced, and the product competitiveness is improved.
Description
Technical Field
The invention relates to the technical field of safety belts, in particular to a pre-tightening type safety belt ignition strategy control method.
Background
Most of the front rows of the existing vehicles are equipped with a passenger safety belt unfastening reminding function, and the passenger in the vehicle is reminded of fastening the safety belt by monitoring the use conditions of the seat and the safety belt, for example, in the patent with the publication number of CN201984571U, the passenger in the vehicle is reminded of fastening the safety belt by detecting signals such as the seat, the safety belt and the vehicle speed and prompting by light and sound. The disadvantages are that: the situation that the pre-tightening safety belt at the vacancy is triggered by the ACU electric signal when the pre-tightening safety belt is not used in an accident is not considered, so that the maintenance cost is increased.
Based on the belt and seat usage signals, a new belt firing control strategy is proposed and saved in a threshold storage module. The method has the advantages that the function of reminding that the existing safety belt is not fastened is realized, and the signals monitored by the safety belt and the seat are simultaneously fed back to the air bag control unit ACU; when the air bag control unit ACU judges that the collision happens and the safety belt and the seat signal reach the set conditions in the threshold storage module, the air bag control unit ACU can ignite the pre-tightened safety belt. When a collision accident happens, the safety belt and the seat at the same position are both in use, the pre-tightening safety belt is triggered by the electric signal of the ACU, otherwise, the pre-tightening safety belt is not triggered. The aim of reducing the maintenance cost is achieved by preventing the pretension type safety belt at the vacancy from being triggered. The safety belt is suitable for most passenger car models provided with pre-tightened safety belts. With the increasingly severe regulations related to automobile safety, more and more automobiles are provided with pre-tightened safety belts for improving the passenger protection performance, and the injury risk is reduced by a method of limiting the forward displacement of passengers after collision; but the current vehicle restraint system firing logic on the market is: when a collision accident occurs and the ignition condition is met, the air bag control unit ACU judges and sends an ignition instruction to trigger all the pre-tightened safety belts, whether the safety belts are used by passengers or not is not considered, and the empty safety belt triggering phenomenon enables the maintenance cost of the whole vehicle to be increased. Therefore, from the viewpoint of maintenance economy, on the premise of not affecting safety performance, it is necessary to design a novel pre-tightening safety ignition strategy control scheme.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a pre-tightening type safety belt ignition strategy control method.
In order to achieve the purpose, the invention adopts the following technical scheme:
a pre-tightening safety belt ignition strategy control method comprises a seat, wherein a safety belt lock sensor is arranged at a safety belt lock position on one side of the seat, a seat cushion pressure sensor is arranged between seat cushion foam and a seat basin of the seat, an air bag control unit ACU is arranged on a middle channel on one side of the seat, and a pre-tightening safety belt assembly is arranged on a B column on the other side of the seat.
Preferably, the specific control method comprises the following steps:
s1: setting the signal that the safety belt lock is used as A1 and the signal that the safety belt lock is not used as A0; setting the seat used signal as B1 and the unused signal as B0, and storing A1& B1 as a threshold value into an ACU threshold value storage module;
s2: after the collision happens, the microprocessor in the air bag control unit ACU receives the input signal and judges whether the acceleration signal accords with the collision characteristic or not, and if not, the information is stored in the storage module;
s3: if the signals meet the next step, judging whether the signals of the safety belt and the seat meet the set threshold value, and if the signals do not meet the set A1& B1 threshold value, finishing the command; if the signal meets the set A1& B1 threshold, the ACU triggers the electrical signal to ignite the pre-tensioned belt, and the information is stored in the storage module and locked.
Preferably, the seat belt buckle sensor is used for monitoring a seat belt use state, and the seat cushion pressure sensor is used for monitoring a seat use state.
Preferably, the air bag control unit ACU is adapted to receive crash, seat belt and seat signals, to determine the signals and to release the firing order.
Preferably, the pretensioned seatbelt assembly is used to provide restraint to the occupant.
Compared with the prior art, the invention has the beneficial effects that: the scheme has the advantages of simple structure and low cost, can be easily realized on a mass production vehicle provided with the safety belt unbuckled reminding and the pre-tightening safety belt without adding new hardware equipment, and is simple, safe and reliable; the maintenance cost after the accident can be reduced, and the product competitiveness is improved.
Drawings
FIG. 1 is a schematic diagram of one embodiment of a pretensioned seatbelt ignition arrangement of the present invention;
FIG. 2 is a second schematic diagram of the seatbelt ignition scheme of the present invention
FIG. 3 is a block diagram of an ACU embodiment of the present invention;
FIG. 4 is a control strategy diagram of the present invention;
FIG. 5 is a flow chart of the ACU operating logic of the present invention.
In the figure: 1 seat belt buckle sensor, 2 seat cushion pressure sensors, 3 air bag control unit ACU, 4 pretension formula safety belt assembly, 5 seats.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A pre-tightening type safety belt ignition strategy control method comprises a seat 5, a safety belt lock sensor 1 is arranged at a safety belt lock position on one side of the seat 5, the safety belt lock sensor 1 is used for monitoring the use state of a safety belt, a seat cushion pressure sensor 2 is arranged between seat cushion foam and a seat basin of the seat 5, the seat cushion pressure sensor 2 is used for monitoring the use state of the seat 5, an air bag control unit ACU3 is installed on a middle channel on one side of the seat 5, the air bag control unit ACU3 is used for receiving collision, safety belt and seat signals, judging signals and releasing an ignition instruction, a pre-tightening type safety belt assembly 4 is installed on a B column on the other side of the seat 5, and the pre-tightening type safety belt assembly 4 is used for providing a restraint.
The specific control method comprises the following steps:
s1: setting the signal that the safety belt lock is used as A1 and the signal that the safety belt lock is not used as A0; setting the seat used signal as B1 and the unused signal as B0, and storing A1& B1 as a threshold value into an ACU threshold value storage module;
s2: after the collision happens, the microprocessor in the air bag control unit ACU receives the input signal and judges whether the acceleration signal accords with the collision characteristic or not, and if not, the information is stored in the storage module;
s3: if the signals meet the next step, judging whether the signals of the safety belt and the seat meet the set threshold value, and if the signals do not meet the set A1& B1 threshold value, finishing the command; if the signal meets the set A1& B1 threshold, the ACU triggers the electrical signal to ignite the pre-tensioned belt, and the information is stored in the storage module and locked.
The scheme has the advantages of simple structure and low cost, can be easily realized on a mass production vehicle provided with the safety belt unbuckled reminding and the pre-tightening safety belt without adding new hardware equipment, and is simple, safe and reliable; the maintenance cost after the accident can be reduced, and the product competitiveness is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. A pre-tensioned seatbelt ignition strategy control method, comprising a seat, characterized by: the safety belt lock catch sensor is arranged at the safety belt lock catch position on one side of the seat, the seat cushion pressure sensor is arranged between seat cushion foam and a seat basin of the seat, the air bag control unit ACU is installed on a middle channel on one side of the seat, and the pre-tightening safety belt assembly is installed on a B column on the other side of the seat.
2. A pre-tensioned seatbelt firing strategy control method according to claim 1, wherein: the specific control method comprises the following steps:
s1: setting the signal that the safety belt lock is used as A1 and the signal that the safety belt lock is not used as A0; setting the seat used signal as B1 and the unused signal as B0, and storing A1& B1 as a threshold value into an ACU threshold value storage module;
s2: after the collision happens, the microprocessor in the air bag control unit ACU receives the input signal and judges whether the acceleration signal accords with the collision characteristic or not, and if not, the information is stored in the storage module;
s3: if the signals meet the next step, judging whether the signals of the safety belt and the seat meet the set threshold value, and if the signals do not meet the set A1& B1 threshold value, finishing the command; if the signal meets the set A1& B1 threshold, the ACU triggers the electrical signal to ignite the pre-tensioned belt, and the information is stored in the storage module and locked.
3. A pre-tensioned seatbelt firing strategy control method according to claim 1, wherein: the safety belt lock sensor is used for monitoring the use state of a safety belt, and the seat cushion pressure sensor is used for monitoring the use state of a seat.
4. A pre-tensioned seatbelt firing strategy control method according to claim 1, wherein: the air bag control unit ACU is used for receiving collision, safety belt and seat signals, judging the signals and releasing an ignition command.
5. A pre-tensioned seatbelt firing strategy control method according to claim 1, wherein: pretensioned seatbelt assemblies are used to provide restraint to the occupant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010314376.5A CN111559335A (en) | 2020-04-21 | 2020-04-21 | Pre-tightening safety belt ignition strategy control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010314376.5A CN111559335A (en) | 2020-04-21 | 2020-04-21 | Pre-tightening safety belt ignition strategy control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111559335A true CN111559335A (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010314376.5A Pending CN111559335A (en) | 2020-04-21 | 2020-04-21 | Pre-tightening safety belt ignition strategy control method |
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| Country | Link |
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| CN (1) | CN111559335A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524742A (en) * | 2003-02-25 | 2004-09-01 | �ղ��Զ�����ʽ���� | Occupant restraint system |
| CN1576119A (en) * | 2003-07-04 | 2005-02-09 | 现代自动车株式会社 | Airbag system for a vehicle |
| CN205769167U (en) * | 2016-05-26 | 2016-12-07 | 温州铭泽机电科技有限公司 | A kind of active belt preloader |
| KR20190046098A (en) * | 2017-10-25 | 2019-05-07 | 현대모비스 주식회사 | Passenger restraint apparatus for vehicle and control method thereof |
| CN110949312A (en) * | 2019-11-29 | 2020-04-03 | 西安冉科信息技术有限公司 | Safety belt control system |
-
2020
- 2020-04-21 CN CN202010314376.5A patent/CN111559335A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524742A (en) * | 2003-02-25 | 2004-09-01 | �ղ��Զ�����ʽ���� | Occupant restraint system |
| CN1576119A (en) * | 2003-07-04 | 2005-02-09 | 现代自动车株式会社 | Airbag system for a vehicle |
| CN205769167U (en) * | 2016-05-26 | 2016-12-07 | 温州铭泽机电科技有限公司 | A kind of active belt preloader |
| KR20190046098A (en) * | 2017-10-25 | 2019-05-07 | 현대모비스 주식회사 | Passenger restraint apparatus for vehicle and control method thereof |
| CN110949312A (en) * | 2019-11-29 | 2020-04-03 | 西安冉科信息技术有限公司 | Safety belt control system |
Non-Patent Citations (1)
| Title |
|---|
| 何东伟主编: "《汽车新技术》", 31 March 2016, 上海科学技术文献出版社 * |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200821 |
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| RJ01 | Rejection of invention patent application after publication |