CN104192030B - A kind of turnable safety seat and upset control method - Google Patents
A kind of turnable safety seat and upset control method Download PDFInfo
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- CN104192030B CN104192030B CN201410361652.8A CN201410361652A CN104192030B CN 104192030 B CN104192030 B CN 104192030B CN 201410361652 A CN201410361652 A CN 201410361652A CN 104192030 B CN104192030 B CN 104192030B
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Abstract
The present invention provides a kind of turnable safety seat and upset control method, safety seat, which may be reversed, includes base and the seat body on base, it is articulated with seat and backrest link position by shaft on base, the telescoping cylinder for tip-up set body is equipped between base and seat, seat body and the articulated position of base are equipped with the ratchet mechanism for being used for that seat body to be locked to upturned position, and seat body is additionally provided with the resetting-mechanism for making seat body be returned to from rollover states normal condition.The safety seat of the present invention drives telescoping cylinder to promote turnover seat when overturning control system measurement and there is the risk collided, and driver is in pre- and faces upward state, maximizes the injury for reducing and colliding to driver.
Description
Technical field
The present invention relates to a kind of turnable safety seat and upset control method.
Background technology
At present, the seat on automobile is generally that backrest is adjustable, and seat is non-adjustable, and the function of seat is not only relaxing of taking
Adaptive, should also have when accident occurs for vehicle to the defencive function of passenger.Current seat does not consider that seat provides safety
Performance, and only by installation safety belt, when crashing, the inertia force produced by the inertia of human body makes human body be present
Inertial acceleration is produced on chair, and the frictional force between seat and human body is not enough to offset inertia force, when using two point form safety
During band, since belt force position is relatively low, turning moment is produced together with inertia force, upper half of human body can occur forward
Rotary motion, causes human body in collision accident to be subject to great damage, and reducing the turning moment that human body is subject to can be effectively reduced
The injury that human body is subject to.
The content of the invention
The present invention provides a kind of turnable safety seat, for reducing injury of the car accident to human body；Meanwhile the present invention
Provide the upset control method of the turnable safety seat.
To solve the above-mentioned problems, turnable safety seat of the invention adopts the following technical scheme that：
A kind of turnable safety seat, including base and the seat body on base, seat and backrest link position
Place is articulated with base by shaft, is equipped between the base and seat and is used to make seat body stretch around what the shaft was overturn
The articulated position of contracting cylinder, the seat body and base is equipped with the ratchet mechanism for being used for that seat body to be locked to upturned position,
Be additionally provided with the seat body makes seat body be returned to normal shape from rollover states for releasing state known to ratchet mechanism
The resetting-mechanism of state.
The ratchet mechanism includes the ratchet being coaxially disposed with the shaft and the pawl being articulated with seat body, described
Ratchet is fixedly arranged on base, and the teeth directional of the ratchet is identical with the reverses direction of seat body.
The resetting-mechanism includes reseting handle, and the reseting handle can depart from the pawl of ratchet mechanism when rotating
Ratchet is so that ratchet mechanism locking fails.
The reseting handle connects the rope control of one end engaged with ratchet of reseting handle and pawl by both ends respectively
Pawl processed departs from ratchet, and the other end of pawl is connected with the spring for making pawl be engaged in normal condition with ratchet.
The seat body is equipped with reset switch, and the reseting handle is pressed when rotating to be touched reset switch and drive flexible
Cylinder swiveling seat body resets.
The seat front end of the seat body is equipped with the buckle with base clamping in normal condition.
The angel measuring instrument for measuring seat body flip angle is additionally provided with the seat body.
The upset control method of the turnable safety seat of the present invention adopts the following technical scheme that：
A kind of upset control method of turnable safety seat, comprises the following steps：
(1) car body information, the relative velocity and distance of collection car body and other car bodies are detected；
(2) standard for the danger that collides for reaching setting is judged whether according to the information of collection；
(3) in the standard for the danger that collides for confirming to reach setting, control seat body upset.
Further, the standard of the danger that collides in step (2) is collision time limit value t0, t0=V/am+ts+
Tr, wherein V are relative velocity, and am is the maximum braking deceleration that vehicle allows, when ts is the in case of emergency reaction of driver
Between, tr is time needed for seat execution system, and when collision time is less than t0, computer processor control upset system is turned over
Turn, when collision time is more than t0, control system is not overturn.
The turnable safety seat of the present invention is extended by telescoping cylinder promotes seat body to rollover states, so possible
When generation collides dangerous, telescoping cylinder promotes seat body upset, driver is in layback state, reduces collision to driving
Injury caused by personnel, seat body prevent seat from returning in switching process by the engagement of the ratchet and pawl of ratchet mechanism
Turn, can realize locking when any position is turned to seat body, this prevents control is overturn during car body collision
After mechanism processed is damaged, the defects of seat body is unable to locking and automatically resets, when needing seat return, pass through resetting-mechanism
Release the lockup state of ratchet mechanism and rotate seat body and return back to normal condition.
Further, ratchet mechanism includes ratchet and pawl, and resetting-mechanism includes reseting handle, is connected with reseting handle
One end is connected to the rope of one end that pawl is meshed with ratchet, and when rotating reseting handle, reseting handle pulls rope to make pawl
Depart from ratchet, so that ratchet mechanism locking fails, be rotated further reseting handle and touch reset switch, so that control system
Seat body is withdrawn into normal condition by driving telescoping cylinder.
Brief description of the drawings
Fig. 1 is the structure diagram of the embodiment of the present invention；
Fig. 2 is the structure diagram of ratchet structure and resetting-mechanism in Fig. 1；
Fig. 3 is the embodiment control flow chart of present invention upset control method.
Embodiment
A kind of turnable safety seat embodiment of the present invention：As shown in Figs. 1-2, including base 1, it is provided with seat 1
Seat body 9, the seat of seat body 9 including left side and the backrest on right side, seat body 9 by the buckle 2 of seat front end with
And the shaft 13 of rear end is installed on base 1, angel measuring instrument 14 is installed in shaft 13, angel measuring instrument 14, which is used to measure, to be turned
The rotation angle of axis 13, bearing is provided with shaft 13 and causes seat can be with around the shaft 13 upsets, the both ends of hydraulic cylinder 3 are cut with scissors respectively
Be connected on base 1 and the front end of seat, power can be provided for the upset of seat body 9, hydraulic cylinder 3 be connected with control system and by
Control system control is flexible, and control system controls with the vehicle body radar and computer processor of car body connect respectively, ratchet structure bag
Ratchet 11 and pawl 12 are included, ratchet 11 is fixed in shaft, and pawl 12 is fixed in seat body 9, when seat body 9 is clockwise
Ratchet 11 does not work during rotation, and when rotating counterclockwise, ratchet 11, which engages with pawl 12 and locks seat body 9, cannot make it
Rotating counterclockwise, ratchet mechanism can be realized and the locking of seat body is acted on when seat body is turned to any position, this
Sample is it is prevented that the defects of seat body automatically resets when car body collision damages switching mechanism.
Resetting-mechanism in the present embodiment includes reseting handle 6, and reseting handle 6 is articulated with the side of seat body 9, resets
The upper end both sides of handle 6 are respectively equipped with the front limited block 4 being fixed in seat body 9 and reset switch 7, under reseting handle 6
End is connected with the resetting spring 8 that one end is fixed on seat 9, and resetting spring 8, which tenses reseting handle 6, makes it be connect with front limited block 4
Touch, the lower end of reseting handle 6 is fixedly connected with steel bracing wire 10, and bracing wire 10 is connected with the pawl 12 of ratchet mechanism, reseting handle 6
During rotation bracing wire 10 can be pulled pawl 12 is disengaged from ratchet 11, ratchet mechanism just no longer plays the role of locking at this time,
Contacted when reseting handle 6 turns to reseting handle 6 at maximum position with reset switch 7, reset switch 7 controls 3 oil extraction of hydraulic cylinder
Compression, is withdrawn into normal condition by seat 9, realizes and reset.
The operation principle of turnable safety seat of the present invention is：Vehicle body this car of detections of radar of control system and front car
Distance and two cars speed, the information such as this car speed, acceleration, front speed, spacing are passed through by computer processor
Certain logical calculated judges risk of collision, calculates the standard for the danger that collides for whether reaching setting, is confirming to reach hair
Processor sends instruction and hydraulic cylinder is carried out oil-filled during the standard of raw risk of collision, the upset of seat is realized, until reaching setting
Position, the angel measuring instrument in shaft measures revolution angle of chair in real time, and sends to computer processor, computer processor and judge seat
Whether posture is adjusted in place, if do not overturn in place, continues to control hydraulic cylinder to be adjusted seat posture.In seat return
When, when pulling the reseting handle on seat backward, the steel bracing wire carried on handle can pull the pawl in ratchet mechanism, make it
Limit function is not provided；When reseting handle is pulled to extreme position, handle can touch reset switch, trigger hydraulic cylinder oil extraction,
Seat posture gradually recovers normal position, and by the gravity of human body, final seat front end and firm banking are fixed by snap, seat
Chair completes reset function.
The turnable safety seat of the present invention is the control driving liquid when computer processor judges that car body has risk of collision
Cylinder pressure promotes turnover seat, and car body has not occurred collision at this time, so avoids existing automobile and controls seat in collision
The problem of switching mechanism of upset damages and overturns failure, simultaneously as existing switching mechanism is all in collision moment control
Turnover seat, this just needs the higher accuracy of manufacture and requirement, and the turnable safety seat of the present invention is to overturn in advance,
Before car body collision also for some time, this is greatly lowered the manufacture difficulty and use cost of switching mechanism.
Angel measuring instrument is installed in above-described embodiment, in shaft to be used to measure the rotation angle of shaft so as to control seat
Upturned position, in other embodiments, angel measuring instrument can not be installed, the maximal tensility of hydraulic cylinder can be just met for
The upturned position of seat.
In above-described embodiment, reseting handle is made by the rope for pulling one end to be connected to one end that pawl is meshed with ratchet
Pawl-and-gearing departs from, so as to release lockup state, in other embodiments, by pulling reseting handle ratchet can be made to be present
Chair body reset when can be rotated with shaft, at this time ratchet mechanism just do not recur locking effect.
The embodiment of the upset control method of the present invention：As shown in figure 3, mainly include the following steps that：
(1) computer processor passes through the automobile in the range of the radar surveying right ahead one fixed width of Chinese herbaceous peony
The distance between (or barrier) L and relative velocity V, relative acceleration a, the a=δ V/ δ t of vehicle are calculated according to sample frequency；
Collision time is calculated according to relative acceleration, if a=0, t=L/V, if a ≠ 0, t=[(V2+2aL)1/2-V]/a；
(2) collision time limit value t0, t0=V/am+ts+tr are calculated according to opposite speed, wherein am is that vehicle allows most
Big braking deceleration, ts are the reaction time of in case of emergency driver, and tr is time needed for seat execution system.Fully
Consider vehicle and the joint effect of driver, it is more reasonable compared with only considering the factor of vehicle, when collision time is less than t0,
Collision possibility can increased dramatically, or even unavoidably；Consider seat execution system time, it is ensured that in the front stall that collides
Chair is overturn in place, and passenger safety is effectively ensured；
(3) by comparing the magnitude relationship between collision time t and time limit value t0, collision possibility is judged；If t<
T0, is determined to have collision possibility, performs turnover seat, otherwise do not perform.
The essence of the upset control method of the present invention is the relative velocity and distance for obtaining car body and front car body first,
Then collision time is calculated to determine whether can collide, then according to the collision time control calculated by computer processor
Make anti-dress system upset or do not overturn.For gathering car body information, in the present embodiment, measured using radar, be used as other
Embodiment, can also use other sensors, or obtain measured value by GPS information；On criterion, this implementation
It is using collision time as criterion in example, as other embodiment, distance can also be used to be used as criterion, such as counted
Calculate emergency stopping distance under current vehicle speed, if the braking distance calculated according to the first step be more than current emergency braking away from
From, then there is very big probability to collide danger, just need computer processor control upset system to be overturn at this time.
Claims (4)
1. a kind of turnable safety seat, including base and the seat body on base, at seat and backrest link position
It is articulated with by shaft on base, it is characterised in that be equipped between the base and seat and be used to make seat body around described turn
The articulated position of the telescoping cylinder of axis upset, the seat body and base, which is equipped with, to be used to seat body being locked at upturned position
Ratchet mechanism, be additionally provided with the seat body makes seat body be replied from rollover states for releasing ratchet mechanism lockup state
To the resetting-mechanism of normal condition, the ratchet mechanism includes the ratchet being coaxially disposed with the shaft and is articulated with seat body
On pawl, the ratchet is fixedly arranged on base, and the teeth directional of the ratchet is identical with the reverses direction of seat body, the reset
Mechanism includes reseting handle, and the reseting handle can make the pawl of ratchet mechanism depart from ratchet so that ratchet machine when rotating
Structure locking fails, and the reseting handle connects the rope of one end engaged with ratchet of reseting handle and pawl by both ends respectively
Pawl is controlled to depart from ratchet, the other end of pawl is connected with the spring for making pawl be engaged in normal condition with ratchet, institute
State seat body and be equipped with reset switch, the reseting handle presses tactile reset switch when rotating and drives telescoping cylinder swiveling seat
Body resets.
2. turnable safety seat according to claim 1, it is characterised in that the seat front end of the seat body is equipped with
The buckle being clamped in normal condition with base.
3. turnable safety seat according to claim 1, it is characterised in that be additionally provided with the seat body for surveying
Measure the angel measuring instrument of seat body flip angle.
4. a kind of upset control method of turnable safety seat as claimed in claim 1, it is characterised in that including following step
Suddenly：
（1）Detect car body information, the relative velocity and distance of collection car body and other car bodies：Computer processor passes through installed in car
The distance between automobile or barrier in the range of preceding radar surveying right ahead one fixed width L and relative velocity V, according to
Sample frequency calculates relative acceleration a, the a=δ V/ δ t of vehicle；Collision time, if a=0, t=L/ are calculated according to relative acceleration
V, if a ≠ 0, t=[(V2+2aL)-V]/a；
（2）The standard for the danger that collides for judging whether to reach setting according to the information of collection, the standard for the danger that collides
It is collision time limit value t0, t0=V/am+ts+tr, wherein V is relative velocity, and am is the maximum braking deceleration that vehicle allows,
Ts is the reaction time of in case of emergency driver, and tr is time needed for seat execution system, when collision time is less than t0
When, computer processor control upset system upset, when collision time is more than t0, control system is not overturn；
（3）In the standard for the danger that collides for confirming to reach setting, control seat body upset, it is ensured that in the front stall that collides
Chair is overturn in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410361652.8A CN104192030B (en) | 2014-07-25 | 2014-07-25 | A kind of turnable safety seat and upset control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410361652.8A CN104192030B (en) | 2014-07-25 | 2014-07-25 | A kind of turnable safety seat and upset control method |
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| Publication Number | Publication Date |
|---|---|
| CN104192030A CN104192030A (en) | 2014-12-10 |
| CN104192030B true CN104192030B (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410361652.8A Active CN104192030B (en) | 2014-07-25 | 2014-07-25 | A kind of turnable safety seat and upset control method |
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| CN (1) | CN104192030B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740316A (en) * | 2017-01-18 | 2017-05-31 | 成都锐奕信息技术有限公司 | Vehicle-mounted preventing collision protection seat |
| JP6464495B2 (en) * | 2017-02-10 | 2019-02-06 | 本田技研工業株式会社 | Vehicle system, vehicle control method, and vehicle control program |
| CN110920648B (en) * | 2019-12-20 | 2021-06-04 | 邵帅 | Subway seat system capable of reducing transverse inertia effect |
| CN115447456A (en) * | 2022-10-14 | 2022-12-09 | 上海市向明中学 | Pulling type safety seat, pulling method thereof and automobile device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2196048Y (en) * | 1994-03-29 | 1995-05-03 | 余新河 | Turn-over type passenger safety device |
| DE19707998B4 (en) * | 1997-02-27 | 2007-04-05 | Inova Gmbh Technische Entwicklungen | Automotive seat |
| DE10025675C2 (en) * | 2000-05-24 | 2003-01-09 | Faurecia Autositze Gmbh & Co | Motor vehicle seat with a seat height adjustment device |
| CN201235764Y (en) * | 2008-05-30 | 2009-05-13 | 李天山 | Pre-tilt safety chair |
| GB0821189D0 (en) * | 2008-11-20 | 2008-12-24 | Bentley Motors Ltd | Vehicle seat |
| EP2698275A1 (en) * | 2012-08-16 | 2014-02-19 | SKJP Holdings, LLC | Crash indication system for a reclining ride down child seat |
| CN203611801U (en) * | 2013-12-08 | 2014-05-28 | 陈群 | Electric chair adjustment device used for collision pre-judging system |
| CN204055446U (en) * | 2014-07-25 | 2014-12-31 | 郑州宇通客车股份有限公司 | Turning safety seat |
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2014
- 2014-07-25 CN CN201410361652.8A patent/CN104192030B/en active Active
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| CN104192030A (en) | 2014-12-10 |
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Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co.,Ltd. Address before: 450016 Yutong Industrial Zone, eighteen Li River, Henan, Zhengzhou Patentee before: ZHENGZHOU YUTONG BUS Co.,Ltd. |
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