CN109677304A - Motor vehicle seat back angle control system and its control method - Google Patents
Motor vehicle seat back angle control system and its control method Download PDFInfo
- Publication number
- CN109677304A CN109677304A CN201910144175.2A CN201910144175A CN109677304A CN 109677304 A CN109677304 A CN 109677304A CN 201910144175 A CN201910144175 A CN 201910144175A CN 109677304 A CN109677304 A CN 109677304A
- Authority
- CN
- China
- Prior art keywords
- acceleration transducer
- backrest
- seat back
- motor vehicle
- back angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
- B60N2/427—Seats or parts thereof displaced during a crash
- B60N2/42727—Seats or parts thereof displaced during a crash involving substantially rigid displacement
- B60N2/42745—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the back-rest
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a kind of motor vehicle seat back angle control systems, including central collision acceleration transducer, side impact acceleration transducer, after touch acceleration transducer, the angular displacement sensor for detecting seat back angle, control unit and for providing the driving device for the driving force for rotating backrest, central collision acceleration transducer, side impact acceleration transducer, after touch acceleration transducer, angular displacement sensor and driving device and connect with control unit.Motor vehicle seat back angle control system of the invention can realize the quick adjustment of the improper sitting posture of occupant to normal sitting position when colliding, and promote passenger protecting performance, reduce occupant injury risk.
Description
Technical field
The invention belongs to the invention belongs to automotive seating art fields, specifically, the present invention relates to a kind of automotive seats
Backrest angle control system and its control method.
Background technique
At this stage, in addition to American market, China even Europe does not consider the design of improper sitting posture passenger protection.By
In the protective effect that cannot give full play to automobile safety system, for improper sitting posture (especially lying posture) occupant, any form
Collision all may cause mortal injury；Therefore, occur in the 50ms time in collision (specific seat return time need according to just/
Side/rear collision operating condition is demarcated) correction occupant's sitting posture is most important for promoting passenger protecting performance.
Safety product and occupant's periphery member on existing automobile are based on occupant's sitting posture under normal design state and design, and do not examine
Consider passenger protecting performance in the case of improper sitting posture.The regulations speed of common seat design backrest angle is (2~5) °/s, cannot
The substantially adjustment for realizing backrest angle in the short time, cannot correct occupant's sitting posture, passenger protecting performance is poor in time.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention provides a kind of vapour
Vehicle seat seat back angle control system and its control method, it is therefore an objective to promote passenger protecting performance.
To achieve the goals above, the technical scheme adopted by the invention is as follows: motor vehicle seat back angle control system, including
Central collision acceleration transducer, side impact acceleration transducer, after touch acceleration transducer, for detect seat back angle angle position
Displacement sensor, control unit and for providing the driving device for the driving force for rotating backrest, central collision acceleration passes
Sensor, side impact acceleration transducer, after touch acceleration transducer, angular displacement sensor and driving device and connect with control unit.
The central collision acceleration transducer, side impact acceleration transducer and after touch acceleration transducer be respectively provided with it is multiple.
The central collision acceleration transducer is set at the front longitudinal beam of automobile and the link position of preceding energy-absorption box, the side impact
Acceleration transducer is set on the B column of automobile.
Acceleration transducer is touched after described to be set at the floor side member of automobile and the link position of rear energy-absorption box.
Acceleration transducer is touched after described is arranged two.
The driving device includes driving motor for providing driving source and for that will pass from the power of driving motor
It is handed to the transmission mechanism of backrest, transmission mechanism is connect with backrest.
The transmission mechanism includes drive shaft, the driving gear being set in drive shaft and the shaft for being set to backrest
Driven gear that is upper and being meshed with driving gear.
The driving device is set on backrest.
The present invention also provides a kind of motor vehicle seat back angle control methods, using above-mentioned motor vehicle seat back angle
Control system, when external impact occurs, the backrest current angular information that control unit is detected according to angular displacement sensor,
Determine the angle setpoint that backrest need to rotate, while control unit issues driving device and instructs, driving device controls seat
Chair back is rotated.
Motor vehicle seat back angle control system of the invention can realize that the improper sitting posture of occupant is arrived when colliding
The quick adjustment of normal sitting position promotes passenger protecting performance, reduces occupant injury risk.
Detailed description of the invention
This specification includes the following drawings, and shown content is respectively:
Fig. 1 is the schematic illustration of motor vehicle seat back angle control system of the present invention；
Fig. 2 is the structural schematic diagram of driving device；
Fig. 3 touches the arrangement schematic diagram of acceleration transducer after being；
Fig. 4 to seat structural schematic diagram；
Fig. 5 is to reset operating condition setting schematic diagram；
Fig. 6 is the flow chart of motor vehicle seat back angle control method of the present invention；
In the figure, it is marked as 1, central collision acceleration transducer；2, central collision acceleration transducer；3, side impact acceleration transducer；
4, side impact acceleration transducer；5, acceleration transducer is touched after；6, acceleration transducer is touched after；7, control unit；8, angular displacement
Sensor；9, driving device；901, electric machine controller；902, driving motor；903, drive shaft；904, driving gear；905, from
Moving gear；906, outer housing；10, floor side member；11, rear energy-absorption box；12, rear bumper；13, backrest；14, portions.
Specific embodiment
Below against attached drawing, by the description of the embodiment, making to a specific embodiment of the invention further details of
Explanation, it is therefore an objective to those skilled in the art be helped to have more complete, accurate and deep reason to design of the invention, technical solution
Solution, and facilitate its implementation.
As shown in Figures 1 to 4, the present invention provides a kind of motor vehicle seat back angle control systems, including central collision to accelerate
Degree sensor, side impact acceleration transducer, after touch acceleration transducer, the angle displacement transducer for detecting seat back angle
Device, control unit and for providing the driving device for the driving force for rotating backrest, central collision acceleration transducer, side
Touch acceleration transducer, after touch acceleration transducer, angular displacement sensor and driving device and connect with control unit.
Specifically, the lower end of backrest is turned by shaft and portions as shown in figure 4, automotive seat includes portions and backrest
The upper end of backrest is arranged in dynamic connection, headrest.Backrest is rotatable relative to portions and the rotation centerline of backrest is equal with Y-direction
Row, when external impact occurs, the backrest current angular information that control unit is detected according to angular displacement sensor determines that backrest needs
The angle setpoint of rotation, while control unit issues driving device and instructs, driving device control backrest is rotated, and is adjusted
Angular dimension between backrest and portions, pro-active intervention correct occupant's sitting posture or keep original chair backrest state.Finally, realization pair
The protective effect of occupant.
Preferably, central collision acceleration transducer, side impact acceleration transducer and after touch acceleration transducer and be respectively provided with
It is multiple.Central collision acceleration transducer is set at the front longitudinal beam of automobile and the link position of preceding energy-absorption box, side impact acceleration sensing
Device is set on the B column of automobile and is located at the root position of B column.The length direction of the front longitudinal beam of automobile and X are preceding to parallel
Energy-absorption box is the component for playing energy-absorbing function, and preceding energy-absorption box is between front bumper and front longitudinal beam, the one of preceding energy-absorption box
End is fixedly connected with front bumper, and the other end of preceding energy-absorption box is fixedly connected with front longitudinal beam, and front bumper is located at the headstock of automobile
Place, preceding energy-absorption box and front longitudinal beam are respectively provided with two, and each preceding energy-absorption box is fixedly connected with a front longitudinal beam respectively.The B column of automobile
Setting two, the root of B column is fixedly connected with sill strip.Floor side member and rear energy-absorbing that acceleration transducer is set to automobile are touched afterwards
At the link position of box.To parallel, rear energy-absorption box is for playing energy-absorbing function by the length direction of the floor side member of automobile and X
Component, between rear bumper and floor side member, one end of rear energy-absorption box is fixedly connected rear energy-absorption box with rear bumper, rear energy-absorbing
The other end of box is fixedly connected with floor side member, and rear bumper is located at the tailstock of automobile, and rear energy-absorption box and floor side member are respectively provided with two
A, each rear energy-absorption box is fixedly connected with a floor side member respectively.
In the present embodiment, as shown in figures 1 and 3, central collision acceleration transducer, side impact acceleration transducer and after touch plus
Velocity sensor is respectively provided with two.Each side impact acceleration transducer is respectively arranged on a B column of automobile and is located at B column
At root position, each central collision acceleration transducer is respectively arranged at the link position of a front longitudinal beam and preceding energy-absorption box of automobile
Place, touches acceleration transducer and is respectively arranged at a floor side member of automobile and the link position of rear energy-absorption box after each.Central collision
Acceleration transducer touches acceleration signal for acquiring front, in collision before automobile occurs, the acquisition of central collision acceleration transducer
Acceleration value.Side impact acceleration transducer is for acquiring side crash acceleration signal, and when side collision occurs for automobile, side impact adds
Velocity sensor acquires acceleration value.After touch acceleration transducer for acquiring rear collision acceleration signal, occur in automobile
After when colliding, after touch acceleration transducer acquisition acceleration value.
Central collision acceleration transducer, side impact acceleration transducer and after to touch acceleration transducer and control unit be to be electrically connected
It connects, the front of acquisition is touched acceleration signal and is transferred to control unit by central collision acceleration transducer, and side impact acceleration transducer will
The side crash acceleration signal of acquisition is transferred to control unit, after touch rear collision acceleration of the acceleration transducer by acquisition
Signal is transferred to control unit.Control unit extracts acceleration transducer signals, and carries out logic judgment, issues control instruction.
Whether control unit is hit based on the acceleration signal analysis identification automobile front of central collision acceleration transducer, and is determined
Impact strength；Whether control unit is hit based on the acceleration signal analysis identification automobile side of side impact acceleration transducer
It hits, and determines impact strength；Control unit is touched based on after behind the acceleration signal analysis identification automobile of acceleration transducer
Whether hit, and determines impact strength.
Angular displacement sensor is to be electrically connected with control unit, and angular displacement sensor is for detecting backrest current angular
Value, and will test result and be transferred to control unit, signal is provided for control unit and is supported, angular displacement sensor is set to driving dress
It sets.The selection principle of backrest return operating condition: angular displacement sensor reading angular is A, select operating condition within the scope of A ± 5 ° as
Reset operating condition；Special, as (15 ° of 25 ° of < A <), backrest adjusts angle and remains unchanged.Operating condition schematic diagram refers to Fig. 5.
By setting central collision acceleration transducer, side impact acceleration transducer and after touch acceleration transducer, can be effective
Guarantee the perception to the collision from different directions, the accurate judgement to crash type etc. is realized, more efficiently for occupant
Safeguard protection is provided.Angular displacement sensor is set, the accurate adjustment of backrest angle may be implemented.
As shown in Figures 1 to 4, driving device includes electric machine controller, the driving motor 902 for providing driving source and uses
In the transmission mechanism that the power from driving motor 902 is transferred to backrest, transmission mechanism is connect with backrest.Motor
The signal of controller reception control unit, and operational order is issued to driving motor 902.Driving motor 902 is used to send out in automobile
Driving force is generated when raw collision, the driving force that driving motor 902 generates is transferred to backrest through transmission mechanism, carries out backrest
Rotation, realizes the adjusting of seat back angle；Driving motor 902 simultaneously can be used under normal use operating condition, realize backrest
The adjusting of angle, the driving force that driving motor 902 generates equally are transferred to backrest through transmission mechanism, turn backrest
It is dynamic.Driving motor 902 is preferably that backrest angle may be implemented in a short time substantially when driving motor 902 operates in high-voltage motor
Degree adjustment, fast response time more efficiently can provide protective effect for occupant.
At the initial stage that automobile collides, driving motor 902 starts running, and generates driving force, what driving motor 902 generated
Driving force is transferred to backrest through transmission mechanism, rotates backrest, and backrest finally turns to initial position, realizes
The instant reset of backrest；By actively adjusting seat back angle to normal sitting position state, pro-active intervention is corrected occupant's sitting posture, is made
In the case of obtaining just/side impact, the protective effect of the restraint systems such as safety belt, air bag, gas curtain is given full play to；After touch in the case of, sufficiently
The protective effect for playing backrest and headrest, prevents serious people-car structural collision from happening.
As shown in Fig. 2, preferably, transmission mechanism include drive shaft 903, the driving tooth that is set in drive shaft 903
Wheel 904 and the driven gear 905 for being set in the shaft of backrest and being meshed with driving gear 904.904 He of driving gear
Driven gear 905 is roller gear, and the axis of shaft of axis and backrest of drive shaft 903 is parallel, driving gear 904 with
Drive shaft 903 is to be fixedly and coaxially connected, and the shaft of driven gear 905 and backrest is to be fixedly and coaxially connected.This transmission mechanism knot
Structure is simple, compact, and transmission efficiency is high, and good reliability occupies little space, and facilitates arrangement.
As shown in Figures 2 and 3, driving device further includes outer housing 906, and outer housing 906 is the structure of inner hollow, driving
The inside of outer housing 906 is arranged in motor 902, and drive shaft 903 is to be rotatably arranged on outer housing 906, and driving device is whole
Body structure is simple, compact, occupies little space, and facilitates arrangement.
As shown in Figures 2 and 3, driving device is set on backrest, and driving device is installed on backrest side metal plate
Golden part is inboard, and outer housing 906 is fixedly connected with backrest.
As shown in fig. 6, the present invention also provides a kind of motor vehicle seat back angle control methods, vapour using the above structure
Vehicle seat seat back angle control system, when external impact occurs, control unit is leaned on according to the seat that angular displacement sensor detects
Current angular information is carried on the back, determines the angle setpoint that backrest need to rotate, while control unit issues driving device and instructs,
Driving device control backrest is rotated.
When external impact occurs, touch for situation later.Acceleration transducer is touched after firstly, collects rear collision acceleration
Signal is spent, and rear collision acceleration signal is transferred to control unit；Then control unit is to rear collision acceleration signal
Judged, determines that collision alarm source is real collision still accidentally effect collision；If real collision, control unit reads angle
Displacement sensor information determines the angle that backrest needs to be reset, and issues instruction activation driving motor 902, and driving motor 902 starts
Operating, driving device driving backrest are rotated, and backrest finally turns to initial position, finally realizes and resets；If
Any instruction is not issued for accidentally actuating signal, control unit.
In above-described embodiment, crash type can be divided into head-on crash, side central collision and rear collision.
Front end, rear end involved in above content, X to, the nouns of locality such as Y-direction, Z-direction, X to, Y-direction and Z-direction be in automobile O-
Length direction, width direction and the short transverse of automobile are respectively indicated in XYZ coordinate system, the front end of all parts refers to close to vehicle
One end of head, rear end refer to close to one end of the tailstock.It requests to protect it should be appreciated that the use of the noun of locality should not limit the application
The range of shield.
The present invention is exemplarily described in conjunction with attached drawing above.Obviously, present invention specific implementation is not by above-mentioned side
The limitation of formula.As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out；Or not
It is improved, above-mentioned conception and technical scheme of the invention are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (9)
1. motor vehicle seat back angle control system, which is characterized in that including central collision acceleration transducer, side impact acceleration sensing
Device, after touch acceleration transducer, the angular displacement sensor for detecting seat back angle, control unit and for provide make seat
The driving device for the driving force that chair back is rotated, central collision acceleration transducer, side impact acceleration transducer, after touch acceleration
Sensor, angular displacement sensor and driving device are connect with control unit.
2. motor vehicle seat back angle control system according to claim 1, which is characterized in that the central collision acceleration passes
Sensor, side impact acceleration transducer and after touch acceleration transducer be respectively provided with it is multiple.
3. motor vehicle seat back angle control system according to claim 1 or 2, which is characterized in that the central collision accelerates
Degree sensor is set at the front longitudinal beam of automobile and the link position of preceding energy-absorption box, and the side impact acceleration transducer is set to vapour
On the B column of vehicle.
4. motor vehicle seat back angle control system according to any one of claims 1 to 3, which is characterized in that touched after described
Acceleration transducer is set at the floor side member of automobile and the link position of rear energy-absorption box.
5. motor vehicle seat back angle control system according to claim 4, which is characterized in that touch acceleration biography after described
Sensor is arranged two.
6. motor vehicle seat back angle control system according to any one of claims 1 to 5, which is characterized in that the driving
Device includes the driving motor for providing driving source and the biography for the power from driving motor to be transferred to backrest
Motivation structure, transmission mechanism are connect with backrest.
7. motor vehicle seat back angle control system according to claim 6, which is characterized in that the transmission mechanism includes
Drive shaft, the driving gear being set in drive shaft and be set in the shaft of backrest and be meshed with driving gear from
Moving gear.
8. motor vehicle seat back angle control system according to any one of claims 1 to 7, which is characterized in that the driving
Device is set on backrest.
9. motor vehicle seat back angle control method, which is characterized in that using any automotive seat of claim 1 to 8
Backrest angle control system, when external impact occurs, control unit is current according to the backrest that angular displacement sensor detects
Angle information determines the angle setpoint that backrest need to rotate, while control unit issues driving device and instructs, driving dress
Control backrest is set to be rotated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910144175.2A CN109677304A (en) | 2019-02-27 | 2019-02-27 | Motor vehicle seat back angle control system and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910144175.2A CN109677304A (en) | 2019-02-27 | 2019-02-27 | Motor vehicle seat back angle control system and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109677304A true CN109677304A (en) | 2019-04-26 |
Family
ID=66197026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910144175.2A Pending CN109677304A (en) | 2019-02-27 | 2019-02-27 | Motor vehicle seat back angle control system and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109677304A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110450683A (en) * | 2019-08-16 | 2019-11-15 | 浙江锐韦机电科技有限公司 | The quickly regulating method of angle regulating device for seat of vehicle |
| WO2022236940A1 (en) * | 2021-05-11 | 2022-11-17 | Liu Kin Wing | Vehicle occupant protection system |
| CN117429327A (en) * | 2023-12-18 | 2024-01-23 | 长春富晟汽车技术研发有限公司 | Zero gravity seat with quick return mechanism and quick return method thereof |
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| CN108944590A (en) * | 2018-05-31 | 2018-12-07 | 厦门理工学院 | A kind of active safety seat |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1935288A1 (en) * | 2006-12-22 | 2008-06-25 | Toyota Boshoku Kabushiki Kaisha | Reclining mechanisms of vehicle seat |
| CN203611801U (en) * | 2013-12-08 | 2014-05-28 | 陈群 | Electric chair adjustment device used for collision pre-judging system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110450683A (en) * | 2019-08-16 | 2019-11-15 | 浙江锐韦机电科技有限公司 | The quickly regulating method of angle regulating device for seat of vehicle |
| WO2022236940A1 (en) * | 2021-05-11 | 2022-11-17 | Liu Kin Wing | Vehicle occupant protection system |
| CN117429327A (en) * | 2023-12-18 | 2024-01-23 | 长春富晟汽车技术研发有限公司 | Zero gravity seat with quick return mechanism and quick return method thereof |
| CN117429327B (en) * | 2023-12-18 | 2024-03-19 | 长春富晟汽车技术研发有限公司 | Zero gravity seat with quick return mechanism and quick return method thereof |
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Application publication date: 20190426 |