WO2009147213A9 - Steuervorrichtung und ein steuerverfahren zur steuerung einer verstelleinrichtung eines fahrzeugsitzes - Google Patents
Steuervorrichtung und ein steuerverfahren zur steuerung einer verstelleinrichtung eines fahrzeugsitzes Download PDFInfo
- Publication number
- WO2009147213A9 WO2009147213A9 PCT/EP2009/056879 EP2009056879W WO2009147213A9 WO 2009147213 A9 WO2009147213 A9 WO 2009147213A9 EP 2009056879 W EP2009056879 W EP 2009056879W WO 2009147213 A9 WO2009147213 A9 WO 2009147213A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vehicle seat
- control device
- force
- seat
- evaluation unit
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000011156 evaluation Methods 0.000 claims abstract description 68
- 210000004705 lumbosacral region Anatomy 0.000 claims description 17
- 230000011664 signaling Effects 0.000 claims 1
- 230000002123 temporal effect Effects 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 14
- 230000001133 acceleration Effects 0.000 description 6
- 238000000418 atomic force spectrum Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000004913 activation Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 208000000875 Spinal Curvatures Diseases 0.000 description 1
- 210000000746 body region Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004148 unit process Methods 0.000 description 1
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
- B60N2/02—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
-
- 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
- B60N2/64—Back-rests or cushions
- B60N2/66—Lumbar supports
- B60N2/667—Lumbar supports having flexible support member bowed by applied forces
-
- 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
- B60N2/0272—Non-manual adjustments, e.g. with electrical operation with logic circuits using sensors or detectors for detecting the position of seat parts
-
- 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
- B60N2/0273—Non-manual adjustments, e.g. with electrical operation with logic circuits taking into account user data, e.g. knee height or physical state
-
- 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
- B60N2/0276—Non-manual adjustments, e.g. with electrical operation with logic circuits reaction to emergency situations, e.g. crash
-
- 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
- B60N2/64—Back-rests or cushions
- B60N2/643—Back-rests or cushions shape of the back-rests
-
- 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
- B60N2/64—Back-rests or cushions
- B60N2/646—Back-rests or cushions shape of the cushion
-
- 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
- B60N2/64—Back-rests or cushions
- B60N2/66—Lumbar supports
- B60N2/667—Lumbar supports having flexible support member bowed by applied forces
- B60N2/6673—Lumbar supports having flexible support member bowed by applied forces with motor driven adjustments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
- B60N2210/40—Force or pressure sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
- B60N2210/50—Inertial sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2220/00—Computerised treatment of data for controlling of seats
- B60N2220/20—Computerised treatment of data for controlling of seats using a deterministic algorithm
Definitions
- the invention relates to a control device and a control method for controlling an adjusting device of a vehicle seat.
- a vehicle seat usually has a seat part and a backrest. Both the backrest and the seat part can be provided with different contour elements below the cushion surface, which can be adjusted in itself to change the contour of the backrest and / or the seat part and thereby a modified form of the backrest cushion and / or the seat part cushion and thus to receive a changed seating comfort.
- the backrest may comprise a backrest frame and S-shaped bar members therebetween for forming an S-shaped backrest having a forward and backward deformable shoulder portion and a forward and backward deformable lumbar portion, the bar members extending in the backrest longitudinal direction with their lower back and upper ends of the seat back frame are pivotally mounted such that they are pivotable about an imaginary axis extending in the longitudinal direction of the backrest.
- vehicle seats with deformable backrests are equipped with an adjustable lumbar support in the region of the lumbar vertebra of a person using the vehicle seat.
- Such lumbar supports can be adjusted both in the forward and in the reverse direction, by a convex-like deformation of the backrest in the Lumbar area a more or less strong support for the person depending on whether this has a more or less strong hollow cross, to increase the seating comfort to provide.
- Such lumbar supports are pre-set by the person in their deformation and remain in this form until the person, for example, by adjusting a handwheel sets this new. This requires the assistance of at least one hand, which is often not available during the driving condition of the vehicle.
- Such vehicle seats have an S-shape adapted to the lumbar region and the shoulder area of the person using them, which is aligned to an average size of the person.
- Such an S-shaped backrest comprises the shoulder area which is concave in the direction of travel and the convex lumbar region which is adapted to the spinal column shape of an average-sized person. This has the consequence that above average tall and small people enjoy a low level of comfort in such vehicle seats.
- the backrest can be adjusted in its S-shape. This requires an adjustment of the back tilt to maintain the person's field of view. This results in an unwanted change in the angle between the upper and lower body of the person.
- the backrests shown above are - apart from providing a deformation of the backrest only in the lumbar area - designed so that they undergo deformation in fixed areas of the backrest, so no coordination of the backrest deformation on the size of the person using the vehicle seat, in particular their Allow back. As a result, extremely large or extremely small persons experience reduced seating comfort.
- a desired during the driving condition desired deformation of the backrest or a suitably shaped seat part must be done by a hand of the driver, who should use his hands for the operation of the steering wheel, a shift lever, the turn signal etc. primarily as a function of the current driving condition and not for the operation of the vehicle seat to cause a change in the seat back contour or seat contour. It is thus an object of the invention to provide a control device and a control method for controlling an adjustment device of a vehicle seat with which not only a desired deformation of the backrest and the seat part without a manual operation by a person but also a facilitated desired change the backrest contour and the seat contour is made possible.
- control device for controlling an adjusting device of a vehicle seat of patent claim 1.
- the control device has an evaluation unit for evaluating an output signal of a force sensor, which measures a mechanical force acting on a predetermined region of the vehicle seat.
- the control device is designed to control the adjustment of the vehicle seat depending on the result of the evaluation by the evaluation unit.
- the evaluation unit is designed for evaluation as a function of a chronological increase in the course of the force measured by the force sensor.
- the control device preferably controls the adjusting device of the vehicle seat for adjusting the vehicle seat when a result of the evaluation by the evaluation unit shows that the output signal of the force sensor is greater than or equal to a first predetermined force threshold value after a predetermined period of time.
- the control device preferably controls the adjustment device of the vehicle seat in such a way that the adjustment of the vehicle seat is blocked if a result of the evaluation by the evaluation unit shows that the output signal of the force sensor exceeds a second predetermined force threshold that is greater than the first one within the predetermined time duration is predetermined force threshold.
- the evaluation unit is designed such that it evaluates depending on a variable between the first and second predetermined force threshold force threshold, whether the adjustment of the vehicle seat is to control or not.
- the variable adjustable force threshold may be adjustable to a fixed value by a user of the vehicle seat.
- the variably adjustable force threshold may also be adjustable by means of an output signal of a weight sensor.
- the evaluation unit can also be designed such that it evaluates depending on a variably adjustable period of time, whether the adjusting device of the vehicle seat is to be controlled or not, wherein the variably adjustable period of time is greater than the predetermined period of time.
- the variably adjustable period of time is variably adjustable by a user of the vehicle seat.
- the predetermined area of the vehicle seat is preferably a lumbar region.
- the control device may be part of a vehicle seat.
- the aforementioned object is also achieved by the control method for controlling an adjusting device of a vehicle seat of claim 1.
- the control method comprises the steps of: receiving an output signal of a force sensor which measures a mechanical force acting on a predetermined area of the vehicle seat; Evaluating the output signal of the force sensor as a function of a temporal increase in the output signal output by the force sensor; and controlling the adjusting device of the vehicle seat depending on the result of the evaluation by the evaluation unit.
- FIGS. 1A to 1C are side views of a vehicle seat according to the present invention
- 2A to 2C are side views of a vehicle seat according to the present invention in which the backrest surface and the seat surface are mechanically decoupled from each other
- 3A and 3B are side views of a vehicle seat according to the present invention, in which the seat is fixed;
- FIGS. 4A to 4C are side views of another vehicle seat according to the present invention.
- FIGS. 5A and 5B are side views of another vehicle seat according to the present invention in which the seat surface is fixed;
- FIG. 6 is a block diagram of a control device for controlling an adjustment of the vehicle seat
- FIG. 7 is a graph showing the progression of the force applied to a vehicle seat over time at various vehicle conditions;
- FIG. 8 shows a flowchart for clarifying an evaluation by the evaluation unit according to the exemplary embodiments of the invention.
- FIG. 9 is a flow chart illustrating a "brake maneuver / accident" operation according to the embodiments of the invention.
- FIG. 10 is a flowchart illustrating a seat adjustment operation according to a first embodiment of the invention.
- 1 1 is a diagram showing the time course of the output signal of a force sensor over time for the operation "seat adjustment" according to the first embodiment of the invention
- 12 is a flowchart illustrating a seat adjustment operation according to a second embodiment of the invention
- 13 is a diagram showing the timing of the output signal of a force sensor over time for the operation "seat adjustment" according to the second embodiment of the invention.
- FIGS. 1 to 5 show various side views of a vehicle seat 100.
- the actual seat support structure and also the means for contour adjustment such as two S-shaped rods, which can be rotated about their longitudinal axis to form the lumbar vertebrae and the shoulder part differently bulged form and change this relationship, not shown in detail.
- Only the means and components which are necessary for the electrical adjustment of a seat back contour or a seat surface contour with the aid of a drive motor and detection elements or sensors are shown with roughly sketched vehicle seats.
- a vehicle seat 100 according to the present invention is shown in each case in a lateral view.
- the vehicle seat 100 has in its backrest 1 10 not shown contour rods, such as S-shaped rod elements, on.
- These S-shaped bar members are disposed between a seat back cushion 11 and a seat back frame 112 to form an S-shaped seat back 110 having a forward and backward deformable shoulder portion 113 and a forward and backward deformable lumbar portion 114.
- the rod elements are slidably mounted on the backrest frame 1 12 in the longitudinal direction of the backrest 1 10.
- the rod members extending in the backrest longitudinal direction are pivotally mounted with their lower and upper ends on the backrest frame in such a way that they are pivotable about an imaginary axis extending in the longitudinal direction of the backrest 110.
- the S-shaped rods can be used to form both the lumbar region 1 14 and the shoulder region 113 more or less convex or concave and additionally to move this convex or concave portion of the backrest 110 in height, so that even very small or very large persons lying outside the average size can arrange this convex or concave area on the shoulder and lumbar vertebra regions of their back. This leads to increased seating comfort.
- an automatic deformation of the lumbar region 1 14 or shoulder portion 113 in the forward direction without changing a relative to a seat part 120 tilt position of the backrest 1 10 possible by the person by applying pressure by means of one of his shoulders, for example an inwardly stronger curvature of the shoulder region 113 of the backrest 1 10 and at the same time an outwardly or in the direction of travel forward directed greater curvature of the lumbar region 1 14 of the backrest 110 learns.
- An opposite movement or deformation of the S-shaped backrest 110 can be achieved by a backward pressure application of the lumbar vertebrae of the person in the lumbar region 1 14 of the backrest 110, whereby the lumbar region 14 occupies an even less forward curvature, while at the same time in the shoulder region 113 of the backrest 1 10 forms a slight rearward curvature.
- a backward pressure application of the lumbar vertebrae of the person in the lumbar region 1 14 of the backrest 110 whereby the lumbar region 14 occupies an even less forward curvature, while at the same time in the shoulder region 113 of the backrest 1 10 forms a slight rearward curvature.
- Such a change of the backrest contour is advantageously promoted by electromotive assistance.
- a sensor S or a plurality of sensors S1, S2 are arranged in the region of the seat surface 121 or the backrest 110.
- the sensors S, S1, S2 are preferably force sensors for measuring a mechanical application of force to the vehicle seat 100.
- the sensor S according to FIG. 1A can be connected between a drive motor M, which is also connected to the sensor S via an evaluation unit A, and a rear one Hinge point 122 of the seat 121 may be arranged.
- the seat surface 121 is guided in the front region on a straight path or a curved path in the forward and backward direction and is arranged at the hinge point 122 in the rear region.
- the pivot point 122 also forms a pivot point for a rocker 130, for which by means of individual rod elements 131 behind the backrest, as shown, lever-like acts on the lumbar region 114 of the backrest 110 by this lever construction, as shown by a double arrow, is pivoted.
- This pivoting movement is initiated by a force application of the sensor S, which measures such a force F when the seat surface 121 is displaced forwards or backwards, and becomes the same by means of the drive motor M, which is supported relative to a structural element of the vehicle seat 100 Rocker 130 more or less extended.
- the drive motor M in addition to a gear unit, not shown, with a threaded spindle, also not shown.
- two sensors S1 and S2 are connected to the evaluation unit A.
- a signal from the evaluation unit A to the drive motor M is passed, which is a displacement of the rod-like rocker 130 caused by retraction and extension of the lower rod member 131 and thus pivoting of the rod members 131 behind the backrest 110 and thus a deformation of the lumbar region 1 14 scored.
- a further sensor S2 in the backrest head portion 115 and a first sensor S1 in founded on the backrest 110 are arranged.
- an adjustment of the rocker linkage is effected by a signal output of the evaluation unit A to the drive motor M, whereby a pivoting, as shown by the double arrow behind the backrest, to a deformation of the lumbar region 1 14 of the backrest 110 leads.
- FIGS. 2A, 2B and 2C show a vehicle seat 100 with a backrest 10 and a seat surface 121 that are mechanically decoupled from one another.
- the seat back drive motor M2 represents a drive unit which drives an angular change of the control lever or rocker bars.
- FIGS. 3A and 3B show a vehicle seat 100 whose seat surface 121 is fixed.
- the backrest 110 is pivotable by means of a control lever, not shown is, as can be seen by the double arrow in Fig. 3A, changed in the lumbar region 1 14.
- This can be done by the drive motor M performing a pivoting movement, this being in response to a signal of the evaluation unit A, the signals by pressurization of the sensors S1 and S2 in the seat area area (FIG. 3A) or a pressurization of the sensors S1 and S2 in the backrest region (Fig. 3B) evaluates.
- FIGS. 4A to 4C do not show vehicle seats 100 with rod-shaped contour elements in the region of the backrest 110, but instead plates which are designed so as to be pivotable about preferably horizontally oriented pivot axes are to be present in the region of the backrest 110.
- a coupling of the seat 121 and the backrest 1 10 takes place electrically.
- this may be a sensor arrangement with a seat structure connection
- FIG. 4B a sensor arrangement in the seat cushion (S1, S2) and in FIG. 4C sensor arrangements S1 and S2 in the backrest cushion 112.
- Fig. 5A and 5B plate-like structures are also available in the backrest area, wherein the seat surface 121 is fixed in this case and only a contour change of the backrest 110 performs. Likewise, again with drive motors M and a control lever in this case, two plates, which are shown here in the backrest area, more or less deflected.
- control device 200 for controlling an adjustment of the vehicle seats described above will now be described in more detail with reference to FIGS. 6 to 9.
- the control device 200 comprises the aforementioned evaluation unit A, which is connected via signal lines to at least one of the aforementioned sensors S, S1, S2 and to an acceleration sensor 140.
- the control device 200 is further connected to at least one of the aforementioned drive motors M, M1, M2. closed to drive the drive motors M, M1, M2.
- a handset 151 connected to the control device 200 which is located on the vehicle seats 100 shown in FIGS. 1 to 5 or in the area of these vehicle seats 100, the adjustment mechanism of the vehicle seat 100 can also be activated manually by an occupant of the vehicle and thus be adjusted.
- the drive motors M, M1, M2, the manual switch 151 and the previously described rocker 131 and rod members 131 and plates in the backrest 110 and / or seat part 120 form an adjusting device 150 for the adjustment mechanism of the vehicle seat 100.
- the manual switch 151 does not have part of Adjustment 150, but it can be provided separately.
- the previously described rocker 131 and rod elements 131 or plates in the backrest 110 and / or seat part 120 are not shown in FIG. In this respect, reference is made to the preceding Figures 1A to 5B.
- the control device 200 is supplied with electrical energy via a voltage source Ubatt and can be grounded.
- the manual switch 151 preferably has the functions "forward” and “backward” and may be provided separately as required for all adjustment ranges of the vehicle seat 100, such as the shoulder region 113, the lumbar region 114, the back region and / or the seat portion 120, and also be executed as a button.
- the hand switch 151 may be implemented as a pivotable control lever, as previously described in FIGS. 3A to 5B.
- the evaluation unit A or control unit processes the signals received from the sensors S1, S2 or the sensor S and decides whether the person desires the contour adjustment of the backrest 110 and / or the seat part 120 or whether the sensor S, S1, S2 force F has another cause.
- the evaluation unit A or control unit is preferably designed so that the additional acceleration sensor 140 is arranged to detect and evaluate the accelerations of the vehicle to thereby between a braking maneuver or an accident process, which is unwanted, and a desired contour shift due to differentiate between different forces.
- This acceleration sensor 140 may be a Hall sensor.
- an interface 250 to the vehicle electronics 300 may be provided, which incorporates these evaluation signals or activation signals of the activation unit A into an overall vehicle safety concept.
- the aforementioned sensors S, S1, S2 may, for example, in the seat surface 121 between a seat pan, the drive motor M, M1, M2 and a supporting structure of the seating surface 121.
- the sensors S1, S2 and the sensor S respectively, measure the tensile and compressive forces occurring at this point and send or send them to the evaluation unit A.
- FIG. 7 shows a diagram for illustrating the course of a vehicle seat 100 acting force F over time t at different vehicle states.
- a curve B in FIG. 7 shows a strong sudden force F, such as a braking maneuver or an accident, whereas a curve C in FIG.
- FIG. 7 shows a lower and slowly increasing force F, such as a desired and desired one Adjustment movement of the contour of the backrest 1 10 and / or the seat part 120.
- the two curves can be evaluated by evaluating the curves, as shown in the diagram, in particular by an evaluation of the degree of increase of the curve in the initial area, with a dashed circle in Fig. 7 is shown, can be distinguished.
- the evaluation is carried out by the aforementioned evaluation unit A.
- the evaluation unit A evaluates the output signals output by the sensors S, S1, S2, that is to say the curves of the measured force F.
- the evaluation unit A in particular carries out an evaluation of the degree of increase in the curve delivered by the sensors S, S1, S2 in the initial region.
- the evaluation unit A concludes that it is an accident or a braking maneuver.
- the controller 100 receives the result of the evaluation the evaluation unit A and controls the adjusting device 150 of the vehicle seat 100 depending on the result of the evaluation by the evaluation unit A such that a blockade of the drive motors M, M1, M2 and thus the adjustment of the contour of the vehicle seat 100 is ensured.
- the evaluation unit A includes a slower and weaker, ie shallower, increase in the curve course of the measured force F, that is a desired and desired adjustment movement of the contour of the backrest 110 and / or the seat part 120.
- the control device 100 receives the result of the evaluation by the evaluation unit A and controls the adjusting device 150 of the vehicle seat 100 depending on the result of the evaluation by the evaluation unit A such that an adjustment of the contour of the vehicle seat 100 takes place.
- step S10 continuous detection of the force F is started with at least one of the force sensors S, S1, S2.
- step S10 continuous detection of the force F is started with at least one of the force sensors S, S1, S2.
- the force sensor S is spoken for the sake of simplicity, even if this also means the force sensors S1 and S2.
- step S12 it is determined whether or not the elapsed time from the start of the timer is equal to a first predetermined time T1. If the time elapsed since the start of the timer is not equal to the first predetermined time n, the flow returns to step S12. However, if the time elapsed since the start of the timer is equal to the first predetermined time T1, the flow proceeds to step S13 where it is determined whether the force F measured by the force sensor S, ie the output signal of the force sensor S, is over a second predetermined force threshold X2 greater than a first predetermined force threshold X1, which will be described later.
- step S14 the flow proceeds to step S14, at which the "brake maneuver / accident" operation described below with reference to Fig. 9 is executed.
- step S15 it is determined whether the force F measured by the force sensor s, ie the output signal of the force sensor S, is greater than or equal to a first predetermined force threshold value X. If the force measured with the force sensor S F is greater than or equal to the predetermined force threshold X1 is, the flow goes back to step S12. However, if the answer at step S15 is YES, the flow proceeds to step S16, at which the "seat adjustment" operation described below with reference to Fig. 10 and Fig. 11 is carried out after execution of the operations "brake maneuver / accident "or” seat adjustment ", the flow goes back to step S1 1 again.
- step S20 the motors M1, M2 and M3 are blocked, that is, the motors can not rotate and thus no driving motion of an element to be driven by them Thereafter, the flow proceeds to step S21 where it is determined whether the force F measured by the force sensor S is greater than or equal to the first predetermined force threshold X1, If the answer is NO, the flow returns to step S21 Otherwise, that is, if the answer is YES at step S21, the flow proceeds to step S22, at which the blockage of the motors M1, M2, and M3 is released again, respectively the motors M1, M2, and M3 are released that they can again cause a driving movement of an element to be driven by them, after which the process "braking maneuver / accident" is ended.
- step S30 it is determined in a step S30 whether the force F measured with the force sensor S is greater than or equal to a variably adjustable force threshold value XV. If the answer at step S30 is YES, the flow proceeds to step S31 at which at least one of the motors M1, M2 and M3 is started. Thereafter, the flow proceeds to step S32 where it is determined whether the force F measured by the force sensor S is less than or equal to the first predetermined force threshold value X1.
- step S32 the flow returns to step S32 again. Otherwise, if the answer at step S32 is YES, the flow proceeds to step S33 at which the started motors M1, M2 and M3 are stopped again. Thereafter, the operation "seat adjustment" is ended. If the answer is NO at step S30, the flow proceeds to step S34, at which it is determined whether the elapsed time from the start of the timer is greater than or equal to a variably settable period T2 or not. If the answer is NO at step S34, the flow returns to step S30 again. However, if the time elapsed since the start of the timer is greater than or equal to the variably settable time period T2, the seat adjustment operation is ended.
- FIG. 11 shows the time profile of the output signal of the force sensor S over the time t in the case of a seat adjustment, as described with reference to FIG. 10. More specifically, in FIG. 11, two different waveforms of the force F acting on a vehicle seat 100 over time are shown.
- the motor M, M1 or M2 is started earlier than for the curve denoted by E.
- the variably adjustable force threshold value XV has a lower value than the variably adjustable force threshold value XV in the case of the curve denoted by C.
- the variably adjustable force threshold value XV can be set to a fixed value at any time by a user of the vehicle seat 100 or occupants of a vehicle in which the vehicle seat 100 is mounted. That is, the manner of adjustment of the vehicle seat 100 may be programmed by the occupant. Such programming may be performed at any time and repeatedly if the occupant so desires.
- the variably adjustable force threshold value XV can also be adjusted by means of the control device 200, for example based on the output signal of a weight sensor (not shown) for detecting the weight of a user sitting on the vehicle seat 100. Also, adjustment by the control device 200 is conceivable, for example, based on an empirically determined map.
- Second Embodiment The second embodiment is identical to the first embodiment except for the function of the evaluation unit A. Therefore, only the parts other than the first embodiment of the second embodiment will be described below.
- an adjustment of the vehicle seat 100 is performed as shown in FIG. 12.
- step S40 it is determined in a step S40 whether the force F measured with the force sensor S is greater than or equal to the first predetermined force threshold value X1. If the answer at step S40 is YES, the flow proceeds to step S41 at which at least one of the motors M1, M2, and M3 is started. Thereafter, the flow proceeds to step S42 where it is determined whether the force F measured by the force sensor S is less than or equal to the first predetermined force threshold value X1. If the answer is NO, the flow returns to step S42. Otherwise, that is, if the answer at step S42 is YES, the flow proceeds to step S43 at which the started motors M1, M2 and M3 are stopped again. Thereafter, the operation "seat adjustment" according to the second embodiment is ended.
- step S40 the flow proceeds to step S44, at which it is determined whether the force F measured with the force sensor S is less than or equal to the first predetermined force threshold X1. If the answer is NO, the flow returns to step S40. Otherwise, that is, if the answer is YES at step S44, the seat adjustment operation according to the second embodiment is ended, and Fig. 13 shows the timing of the output signal of the force sensor S over the time t in the case of seat adjustment as shown in Figs Referring to Fig. 12, in more detail, two different traces of the force F acting on a vehicle seat 100 over time are shown in Fig. 13.
- the motor M, M1 and / or M2 becomes earlier is not started as shown in Fig. 13.
- the variably settable time T2 shown for the curve G is larger in Fig. 13 than the time for the curve H indicated by arrows .
- the variably settable time T2 may be set by a user or occupants at any time to a fixed value. This means that the type of adjustment of the seat can be programmed by the occupant. Such programming may be carried out at arbitrary times and repeatedly if the user or inmate so desires.
- the variably settable time duration T2 can also be adjusted automatically by means of the control device 200, for example based on an empirically determined characteristic map.
- Such an electric motor can be used not only to assist a desired change in the backrest and seat contour contours by pressurization, but also in a sudden braking maneuver, an accident or any other force acting suddenly, this force application even in a very strong Acceleration maneuver can occur, the contour change block, so not as a motor but as a lock to operate and thus to prevent a change in the contours, as previously described with reference to FIG. 7.
- the sensors S, S1, S2 are force sensors, which therefore respond to the application of force by the person or by external influences.
- pushing the person in their back area against the backrest 110, for example in the lumbar region will cause the lumbar region to move from a convex to a concave shape and to change with the aid of the electric motor.
- the sensor S, S1, S2 or the plurality of sensors thus has the task that he / she should / should determine whether the person performs such a strong movement that it leads to a contour change of the seat part 120 and / or the backrest 1 10 should lead.
- the force sensor (s) S, S1, S2 can be located within the seat surface 121, ie immediately below the seat cushion, and at one, two or more different locations from above, from the front, from the side or from Measure back force applied F or the pressure and pass it to the evaluation unit A.
- the sensors S, S1, S2 may instead or additionally be arranged in the backrest 110 and measure the introduced force F or the introduced pressure at one, two or more different points of the backrest 110 and to the evaluation unit A. pass on.
- the control device 200 may be mounted in or on the vehicle seat 100 or may also be part of an electronic control device (ECU), not shown, which controls the entire vehicle electronics 300.
- ECU electronice control device
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112009001057.1T DE112009001057B4 (de) | 2008-06-05 | 2009-06-04 | Steuervorrichtung und ein Steuerverfahren zur Steuerung einer Verstelleinrichtung eines Fahrzeugsitzes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102008026808.9 | 2008-06-05 | ||
DE102008026808 | 2008-06-05 |
Publications (2)
Publication Number | Publication Date |
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WO2009147213A1 WO2009147213A1 (de) | 2009-12-10 |
WO2009147213A9 true WO2009147213A9 (de) | 2011-01-06 |
Family
ID=40999945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/056879 WO2009147213A1 (de) | 2008-06-05 | 2009-06-04 | Steuervorrichtung und ein steuerverfahren zur steuerung einer verstelleinrichtung eines fahrzeugsitzes |
Country Status (2)
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DE (1) | DE112009001057B4 (de) |
WO (1) | WO2009147213A1 (de) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5217278A (en) * | 1991-03-13 | 1993-06-08 | Findlay Industries, Inc. | Mechanism for providing adjustable lumbar support in a seat |
DE19734508C2 (de) * | 1997-08-08 | 2001-05-17 | Siemens Ag | Steuervorrichtung für ein Insassenschutzmittel eines Kraftfahrzeugs |
US6339302B1 (en) * | 1998-12-15 | 2002-01-15 | Prince Technology Corporation | Vehicle control system |
ITBO20000191A1 (it) * | 2000-04-04 | 2001-10-04 | Ferrari Spa | Sedile adattativo . |
DE10321871A1 (de) * | 2003-05-15 | 2004-12-02 | Robert Bosch Gmbh | Insassenschutzsystem für Fahrzeuge und Verfahren zum Betätigen eines Insassenschutzsystems für Fahrzeuge |
DE10323023A1 (de) * | 2003-05-15 | 2004-12-02 | Volkswagen Ag | Sitz, insbesondere Kraftfahrzeugsitz und Verfahren zur Komforteinstellung einer Lordose mittels einer Sensorik |
DE202004009922U1 (de) * | 2004-06-24 | 2005-11-03 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg | Steuerungsvorrichtung zur Steuerung einer Verstelleinrichtung eines Kraftfahrzeugs |
DE102005041840B3 (de) * | 2005-09-02 | 2007-04-26 | Airbus Deutschland Gmbh | Passagiersitz mit individueller Anpassung an einen Passagier |
DE202005017249U1 (de) * | 2005-11-04 | 2007-03-15 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg | Verstelleinrichtung und Steuerungsvorrichtung eines Fahrzeuges |
DE102006011654A1 (de) * | 2006-03-11 | 2007-09-13 | Ident Technology Ag | Sitzanordnung, sowie hiermit ausgestattetes Kraftfahrzeug |
-
2009
- 2009-06-04 DE DE112009001057.1T patent/DE112009001057B4/de not_active Expired - Fee Related
- 2009-06-04 WO PCT/EP2009/056879 patent/WO2009147213A1/de active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2009147213A1 (de) | 2009-12-10 |
DE112009001057A5 (de) | 2011-02-24 |
DE112009001057B4 (de) | 2014-05-15 |
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