CN102050038A - Method and device for dynamic adaptation of body support for person seated in adaptive vehicle seat - Google Patents
Method and device for dynamic adaptation of body support for person seated in adaptive vehicle seat Download PDFInfo
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- CN102050038A CN102050038A CN2010105204609A CN201010520460A CN102050038A CN 102050038 A CN102050038 A CN 102050038A CN 2010105204609 A CN2010105204609 A CN 2010105204609A CN 201010520460 A CN201010520460 A CN 201010520460A CN 102050038 A CN102050038 A CN 102050038A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000006978 adaptation Effects 0.000 title abstract description 3
- 230000003044 adaptive effect Effects 0.000 title abstract 2
- 230000008569 process Effects 0.000 claims abstract description 4
- 238000013022 venting Methods 0.000 claims description 12
- 230000004913 activation Effects 0.000 claims description 10
- 230000037396 body weight Effects 0.000 claims description 3
- 230000036541 health Effects 0.000 claims description 3
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- 238000011156 evaluation Methods 0.000 claims 1
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Classifications
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- 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
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
- B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
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- 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
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
- B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
- B60N2/0268—Non-manual adjustments, e.g. with electrical operation with logic circuits using sensors or detectors for adapting the seat or seat part, e.g. to the position of an occupant
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- 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
- B60N2/90—Details or parts not otherwise provided for
- B60N2/914—Hydro-pneumatic adjustments of the shape
Abstract
The invention relates to a method for the dynamic adaptation of body support for a person seated in an adaptive vehicle seat based on the current speed and the storage data about the current road direction. According to the invention, comfortableness can be improved and the attention on the traffic situation can be distracted as less as possible. A path that is most likely to be driven along by a vehicle is predicted in the driving process. A body support suitable for the path predicted to be most likely driven can be adapted when a vehicle is passing a curve with the tail end being shorter than the predicted path.
Description
Technical field
The present invention relates to a kind ofly according to the described method that is used for dynamic adjustments seat occupant body-support of dependent claim general name and a device of carrying out this method, this method is based on the current speed of a motor vehicle with about the storage data of current trend of road.
Background technology
Seat generally is divided into two kinds of sports type and comfort types, and its difference mainly is lateral support.Also existing at present seat, its lateral support can be according to concrete travel conditions from the comfort type dynamic translation to sports type.
Patent DE 35 41 537 A1 and DE 197 50 223 A1 disclose a kind of seat of dynamic adjustments, it has the seat headrest that is used to support occupant's health that can inflate and exit, moving velocity is depended in the gas filed adjusting of this seat headrest, the corner of bearing circle, the size of vehicle lateral acceleration and inclination, thus make lateral support be adapted to concrete travel conditions.
The shortcoming of this system is, have only when automobile in bend this system just work, this is because the inflation and the venting of seat headrest need the regular hour.Neither a good settling mode if lateral support is changed more rapidly, its reason is not only the system cost of great number, and main is can feel lofty and uncomfortable when the occupant works rapidly in system.
These disclosed systems will regulate every bend.A succession of bend will make seat headrest constantly inflate and exit, and occupant is not felt well for this and when the occupant was chaufeur, this can produce potential danger, because therefore chaufeur can disperse the attention to traffic.
Summary of the invention
Task of the present invention is, realizes that a kind of occupant of making feels comfortable especially and the body-support dynamic adjustments to the health headrest the least possible its attention of dispersion.
This task will solve by described mode of the feature in the dependent claim and cooresponding device.
In disclosed method, the bend end that is about to appearance is only carried out in prediction at most.Relative therewith, the prediction among the present invention will exceed the bend end that is about to appearance.Thereby can predict, whether there are one or more bend in the back.Utilize these information can be, thereby it is maximum comfortable and be subjected to the influence that seat headrest inflation and venting are caused as few as possible that the occupant is enjoyed so that body-support optimally adapts with travel.
In a form of implementation that preferably has a side body-support, when predicting one section most probable road in forthright back is to turn right when curved, the occupant only can be supported in the left side, be to turn left when curved perhaps when predicting one section most probable road in forthright back, the occupant only can be supported on the right side, perhaps when to predict most probable road be some closely in succession bends, when changing suddenly such as the road curvature of S shape bend or prediction, the occupant can be supported in the left and right sides.
Advantageously, the most probable road that comes out when calculated in advance exceeds this section distance of the bend end that is about to appearance greater than the pairing distance with next section running time, this section running time is greater than the seat headrest deflation time, and seat headrest should keep not having the intermittent time of gaseity and with its gas filed time sum between two sections bends that directly do not link to each other.This intersegmental time of having a rest should be regulated in such a way, promptly reach the good compromise between travelling comfort or drive safety and the less dispersion chaufeur attention, simultaneously can rely on the driving model of chaufeur institute preliminary election such as comfort type, coventional type and sports type, according to speed (as long as having suitable take off data to obtain automatically), driving style, the seating position of chaufeur, the body weight of chaufeur and/or some other parameter and change, thus realize automatic coupling with chaufeur.
The road that the algorithm that decision activated or removed seat headrest is based on the current speed of a motor vehicle and the automobile predicted is about to travel is made differentiation, this section path link is crossed current trend of road and/or the performed any action of chaufeur, such as acceleration, brake, startup Cornering Lamp etc. calculates.
Viewpoint and principle that some other this optimal algorithm selection should be noted or follow are as follows:
-current seat adjustment.
-carry out some activation (behavior) simultaneously.To avoid like this to the occupant bother and to the dispersion of its attention and the quantity that reduces activation cycle.If predicted many bends, all activation behaviors should focus in the activation cycle, no matter the bend direction whether change with and the order that changes.If predict the very many highway sections of a bend, it then is very favorable so the seat headrest both sides being kept inflated condition in whole bend highway section.
-reversibility.The judgement that algorithm is done should can be recalled for the occupant, and promptly seat headrest should be inflated before first bend begins fully, begins venting after last bend behind a succession of bend finishes.
The limitation of-physics.Algorithm should be considered the seat headrest inflation or exit the needed time.Because these times are relevant with occupant's height and body weight, can obtain automatically by seat sensor or executed activation cycle.
-clearly decision, such as in a form of implementation, the occupant is general only to be supported in the side of centnifugal force with its release.Only at a succession of bend, under the situation such as the S bend, the occupant just can be supported in both sides.This supported on both sides also is favourable under the situation that the curvature of predicted link changes suddenly, like this occupant can be in seat waving back and forth.
Utilize the present invention that the size of lateral support is changed in comfortable mode according to the trend of road that is about to occur, and the attention that can not disperse chaufeur or passenger.Support strategy and depend on travel conditions, especially speed, the soon bending direction and the size of the bend that occurs.
In any case, all will as far as possible gently change body-support, thereby make this system allow chaufeur feel comfortable as much as possible.
Chaufeur is obtained being about to coming across the information of the trend of road before it through tactile feedback by seat in addition.
Realize that this method needs a seat and the digital road chip that lateral support can change, can predict by this chip to obtain the trend of the road of appearance soon.Because it is known to be about to the trend of road of appearance, the reaction of the hardware and software of adjusting seat does not need very fast, therefore can continue to use many profiles of existing standard seat.For the automobile with this seat and navigationsystem, cost of the present invention is very low and can only need realize by software.
The present invention not only predicts a bend to the fusion of digital road chip and automobile information, but estimates a complete highway section, and it comprises than the bend more information that is about to occur and supports strategy and will implement for whole section way.Do not need simultaneously the historical data of travel and do not need to be used for the additional memory devices of any additional link information.Can realize automatic coupling in addition to chaufeur driving style and physical trait.
In relevant claims, will provide the favourable further improvement of the present invention.
Description of drawings
To be described in detail the present invention by accompanying drawing below.It shows:
Fig. 1 is used for setting forth the sketch that preferred lateral support algorithm is judged substantially;
Fig. 2 is used to set forth the chart of determining seat headrest inflationtime interval;
Fig. 3 is used to be set forth in two bends and has a time schedule than the reactive mode of system under the situation of long straight way between them;
Fig. 4 is used to be set forth in two bends and has a time schedule than the reactive mode of system under the situation of short straight way between them.
The specific embodiment
At first the basic judgement in the preferred lateral support algorithm is set forth by Fig. 1.
An electronic control unit in the automobile is by go out the road that most probable can travel in the vehicle traveling process such as navigation system computes.Can adapt to seat when occupied when seat sensor identifies one, then start this mode.
Do not have gas filed midway location in the lateral support seat headrest, when most probable road was right-hand corner after identifying one section forthright, the occupant only can be supported in the left side, when bend finishes corresponding seat headrest is exitted.
When most probable road was turnon left after identifying one section forthright, the occupant only can be supported on the right side, when bend finishes corresponding seat headrest is exitted.
When identifying after one section forthright most probable road is during such as the S bend, and the occupant can be supported in the left and right sides, when the end of S bend these two seat headrest is exitted.This supported on both sides also can be implemented under the situation of the camber flip-flop of predicted link.
Can set forth now according to Fig. 2, whether the algorithm of Shi Shiing is how in the speed of a motor vehicle be about to calculate on the basis of the trend of road that occurs and must put on the air and how long this fills to seat headrest in the method.When a kind of road of most possible appearance newly occurring, always carry out this algorithm.
The basis of judging is the lateral acceleration of expection.Lateral acceleration a is drawn by following:
Wherein, s is the distance of current vehicle location, and r (s) is apart from the radius of curvature among the s, and ω is a cireular frequency, and v is the speed of a motor vehicle.The a value is just got for a left side is curved, for the right side curved get negative.Lateral acceleration a is at current vehicle speed v
MomBe maintained under the invariable prerequisite and can represent by a kind of function about time t:
One group of parameter of algorithm requirements definition of suggestion.The value of these parameters must be optimized in experiment.
I. first parameter is time gap Δ rest, and it is one or several seat headrest inflations (time gap Δ inflate) and venting (time gap Δ deflate) lasting time at least:
Δrest＝Δinflate+Δdeflate+Δpause
Ii. Δ pause has defined system the twice middle time that should rest on quiescence at least of activation cycle.The seat headrest of all lateral support is all found time in the quiescence.This timing definition the shortest lengths of two bend middle straight drawing lines roads trend, be used for bend is considered as two incidents of separating.If straight line is shorter than this length, then two bends can only cause an activation cycle.
Iii. another parameter of algorithm is the higher extreme value Ah of acceleration/accel.For being started, algorithm must surpass this limit according to quantity.
Iv. last parameter is the low extreme value A of acceleration/accel
l, it has stipulated where bend begins or finish.
This algorithm is attempted at first the higher limit that absolute value by acceleration/accel surpasses acceleration/accel and is found first time point T
h,
T
h＝min{t|A
h≤|a(t)|}
When there being such time point T
h(an additional step can minimum velocity v
MomBe prerequisite, in the strategy that berths, seat headrest put on the air in order to avoiding) time, this algorithm attempts to find the largest interval [T around this value
a, T
b], thereby the absolute value that guarantees acceleration/accel never is lower than acceleration/accel smallest limit A being longer than in the Δ rest time
l
The another kind of optional version of this algorithm is only to use geometric data to calculate the initial sum destination node of bend.Providing two formula at last should get 1/r (t ') and replace a (t ').
Fig. 2 has shown these formula.According to Fig. 2, list vertical acceleration value in the chart about the time (level), predict that these values are used for comprising in succession that by one S is curved fast, the highway section that the bend of straight line and a series of some tight mutual connections constitutes.The post bar that is drawn into time sequence in the linearity region is time gap Δ rest.As amplifying in chart the latter half shown in the post bar that draws, time gap is by the time Δ inflate that has mentioned, and Δ deflate and Δ pause form.Whole post bar must be coupled in two bends in succession in order to start an additional inflation/deflation circulation.
As mentioning, Δ inflate is used for time that one or several seat headrest inflations are continued.Δ inflate be change and depend on the occupant and whether put on the air in a side or both sides.Δ deflate is the time that one or several seat headrest is exitted fully continued and equally also changes.Variable Δ inflate that depends on a number of factors and Δ deflate will constantly carry out refinement by a feedback circulation that is made of first preshoot deflation cycles.
Δ pause be an indication seat should be in deflated state before next inflation cycle takes place the parameter of time length.It has determined the prediction distance of algorithm and has determined that what bends are summarized wherein.Thereupon, Δ pause has determined the reactivity of system.If Δ pause is big,, make many bends to be comprised wherein and system becomes inadequately sensitive by carrying out the less deflation cycles of dashing.
Also have a kind of selection in addition, thereby by on the short lines road, adopting the part venting to obtain more more reactivities.
Fig. 3 is illustrated in the response characteristic of system under the situation that two left bends add straight ways in the middle of both.Horizontal row goes out the highway section respectively in Fig. 3 A and 3B.The vertical lateral acceleration of listing prediction in Fig. 3 A.At the inflated condition that plays shown in Fig. 3 B according to the expectation of of desired lateral-supporting dynamic adjustments body-support effect or some seat headrest.For simplicity, the vertical side that diagram of curves is shown in Fig. 3 B, in fact they tend to a kind of response of gentleness.Can be, in case vehicle is positioned on the straight way, the post bar that is consistent with Fig. 2 center pillar bar be coupled between two sections bends with recognizing, because two sections bends are considered to incident separately and seat headrest by emptying, and is filled heavily again before second bend begins.
Fig. 4 illustrates the response characteristic of system under the situation that two left bends add short straight ways in the middle of both.At Fig. 4 a, 4b, among 4c and the 4d respectively horizontal row go out the highway section.The vertical lateral acceleration of listing prediction in Fig. 4 a.At Fig. 4 b, the inflated condition of one or several corresponding seat headrest shown in 4c and the 4d.Can be that the post bar in Fig. 4 a can not fit between two sections bends with recognizing.
For the strategy shown in Fig. 4 b, two sections bends of Fig. 4 A are considered an incident.Seat headrest keeps inflation fully on straight way, and just venting heavily again after second bend.
For the strategy shown in Fig. 4 c, seat headrest only slowly and is partly exitted on straight way and is refilled.
Strategy shown in Fig. 4 d is to regard two sections bends in succession as separately incident all the time, according to every section bend seat headrest is exitted.This strategy meets state-of-the-art in the result.
The aforesaid strategy that is used for seat headrest inflation and venting can be optimized by the method that describes below, in order to further raising user's comfort level.
Its purpose is, reduces the variation in succession of inflated condition.
Another purpose is, reduces to inflate time length Δ inflate by the physical trait of considering the seat user.The time that continues can be carried out refinement based on the previous deflation cycles of dashing.
The maxim that air pressure in the seat headrest can be depending on the acceleration/accel of prediction produces.Pressure can be adapted to the driving style of chaufeur and/or chaufeur can be in predefined adjusting such as motion, selects in comfortable and common.Adjusting can be based on vehicle data such as characteristic speed, and feature brake custom etc. are for the driving style that calculates chaufeur automatically and the pressure in the seat headrest is adapted with it.
Also can there be multiple intermediate value between the two states of " venting fully " and " inflation fully ".The user can also oneself regulate a reference value of the two states of " venting fully " and " inflation fully ".
The adjusting seat that the method for having described and not only can be applicable to is regulated by seat headrest inflation and venting can also be used to have machinery and change, and promptly machinery can activate the seat with dissoluble lateral support.
Claims (10)
1. based on the current speed of a motor vehicle with about a kind of method that is used for dynamic adjustments seat occupant body-support of the storage data of current trend of road,
It is characterized in that,
In vehicle traveling process, precompute a vehicle most probable along its road that travels, at this moment each precomputes the road that most probable can travel and arrives farther place than the bend that is about to occur is terminal, and regulates the body-support that is adapted to the whole most possible travel that precomputes by this section bend the time.
2. according to the method for claim 1,
It is characterized in that,
The body-support that is adapted to the whole road that most possibly travels that precomputes is adjusted before by bend.
3. according to the method for claim 1 or 2 lateral support healths,
It is characterized in that,
-be to turn right when curved when predicting one section most probable road in forthright back, the occupant who takes a seat on the seat only can be supported in the left side,
-be to turn left when curved when predicting one section most probable road in forthright back, the occupant only can be supported on the right side, and
-when to predict most probable road be some closely in succession bends or the road curvature of prediction when changing suddenly, the occupant can be supported in the left and right sides.
4. according to the method for claim 3,
It is characterized in that,
The highway section is considered straight line, when its curvature is lower than a certain threshold value on minimum length.
5. the method that one of requires according to aforesaid right,
It is characterized in that,
The most probable road that preliminary evaluation comes out exceed this section distance of the bend end that be about to occur and be regarded as the minimum length in straight line highway section with the pairing distance of next section running time, this section running time is greater than the time (Δ deflate) that the venting of seat headrest is continued, and seat headrest should keep not having the intermittent time (Δ pause) of gaseity and will activate time (Δ inflate) sum of a seat headrest at least between two sections directly continuous bends.
6. according to the method for claim 5,
It is characterized in that,
The time of activating and making at least one seat headrest not have gas changes, and by seat sensor and from crossing activation cycle and can drawing automatically or adapt to.
7. according to the method for claim 5 or 6,
It is characterized in that,
Between two sections bends that directly do not link to each other seat headrest should keep not having the size of the intermittent time (Δ pause) of gaseity be one in advance scalable or with record or from relevant transformable of occupant aspect available parameter, and when the distance between two sections bends that directly do not link to each other is not enough, in order in corresponding running time, at least a seat headrest to be exitted, at least in off period maintenance venting and activation inflation again, at least one seat headrest is keeping state of activation or is being under partial failure or the situation that a plurality of support headrests are arranged for same support orientation one or several seat headrest to be lost efficacy on this highway section.
8. the method that one of requires according to aforesaid right,
It is characterized in that,
Considering parameter such as current seat adjustment, occupant institute seat is put, and its driving style and/or its body weight are carried out the adjusting of body-support.
9. the method that one of requires according to aforesaid right,
It is characterized in that,
Being adjusted under the prerequisite that successful plurality of activated itself and failure procedure belong to a process of body-support carried out.
10. based on the current speed of a motor vehicle with about a kind of device that is used for dynamic adjustments seat occupant body-support of the storage data of current trend of road,
It is characterized in that,
Be used for implementing according to one method of described claim before and constitute this device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1020090513809 | 2009-10-30 | ||
| DE102009051380.9A DE102009051380B8 (en) | 2009-10-30 | 2009-10-30 | Method and device for the dynamic adaptation of the body support of a person sitting in a vehicle seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102050038A true CN102050038A (en) | 2011-05-11 |
| CN102050038B CN102050038B (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010520460.9A Expired - Fee Related CN102050038B (en) | 2009-10-30 | 2010-10-26 | Method and device for dynamic adaptation of body support for person seated in adaptive vehicle seat |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102050038B (en) |
| DE (1) | DE102009051380B8 (en) |
Cited By (6)
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| CN106891782A (en) * | 2015-12-18 | 2017-06-27 | 上海汽车集团股份有限公司 | Seat state identification, the method and device of chair control |
| CN108608913A (en) * | 2017-01-23 | 2018-10-02 | 长城汽车股份有限公司 | Seat dynamic adjusting method, system and the vehicle of vehicle |
| CN108622102A (en) * | 2017-03-16 | 2018-10-09 | 丰田自动车株式会社 | Vehicle input operation auxiliary device |
| CN112356750A (en) * | 2020-10-28 | 2021-02-12 | 广州汽车集团股份有限公司 | Method and device for adjusting seat and electronic equipment |
| CN112674517A (en) * | 2018-03-15 | 2021-04-20 | 合肥工业大学 | Seat cushion based on multi-angle supporting and adjusting structure |
| CN113942468A (en) * | 2020-07-15 | 2022-01-18 | 采埃孚汽车科技(上海)有限公司 | Pneumatic seat control system, control method, and computer-readable medium for vehicle |
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| DE102013220551B4 (en) | 2013-10-11 | 2018-06-14 | Conti Temic Microelectronic Gmbh | Method and device for adapting the body support of a person sitting in a vehicle seat and vehicle comprising a vehicle seat and a device for adapting the body support of a person sitting in the vehicle seat |
| DE102014201663B4 (en) | 2014-01-30 | 2016-08-04 | Conti Temic Microelectronic Gmbh | Device for the pneumatic adjustment of a seat in a means of transport, in particular in a motor vehicle and means of transport, in particular a motor vehicle |
| DE102014211570B4 (en) | 2014-06-17 | 2019-01-24 | Conti Temic Microelectronic Gmbh | Device for the pneumatic adjustment of a seat in a means of transport, in particular in a motor vehicle and seat for a means of transport, in particular motor vehicle seat |
| DE102017206313B4 (en) * | 2017-04-12 | 2023-01-19 | Ford Global Technologies, Llc | Method for seat adjustment of a means of transport |
| DE102017219365B4 (en) * | 2017-10-27 | 2023-03-30 | Zf Friedrichshafen Ag | Apparatus and method for adaptive vehicle control |
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| US20030023363A1 (en) * | 2000-05-09 | 2003-01-30 | Egon Katz | Method for adapting body support of a passenger seated in a vehicle seat in terms of vehicle movements dynamics and corresponding vehicle seat |
| JP2006007834A (en) * | 2004-06-22 | 2006-01-12 | Aisin Seiki Co Ltd | Vehicular seat control device |
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| CN106891782B (en) * | 2015-12-18 | 2019-12-03 | 上海汽车集团股份有限公司 | The method and device of chair control |
| CN108608913A (en) * | 2017-01-23 | 2018-10-02 | 长城汽车股份有限公司 | Seat dynamic adjusting method, system and the vehicle of vehicle |
| CN108622102A (en) * | 2017-03-16 | 2018-10-09 | 丰田自动车株式会社 | Vehicle input operation auxiliary device |
| CN112674517A (en) * | 2018-03-15 | 2021-04-20 | 合肥工业大学 | Seat cushion based on multi-angle supporting and adjusting structure |
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| CN113942468A (en) * | 2020-07-15 | 2022-01-18 | 采埃孚汽车科技(上海)有限公司 | Pneumatic seat control system, control method, and computer-readable medium for vehicle |
| CN112356750A (en) * | 2020-10-28 | 2021-02-12 | 广州汽车集团股份有限公司 | Method and device for adjusting seat and electronic equipment |
| CN112356750B (en) * | 2020-10-28 | 2021-09-24 | 广州汽车集团股份有限公司 | Method and device for adjusting seat and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009051380B8 (en) | 2014-08-21 |
| DE102009051380B4 (en) | 2014-07-03 |
| DE102009051380A1 (en) | 2011-05-05 |
| CN102050038B (en) | 2015-04-29 |
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