FR2876963A1 - Motor vehicle, has motor providing higher resisting torque for moving seat in forward direction than that in backward direction, when adjusting direction, along which upper part of slide slides, is inclined at angle relative to horizontal - Google Patents
Motor vehicle, has motor providing higher resisting torque for moving seat in forward direction than that in backward direction, when adjusting direction, along which upper part of slide slides, is inclined at angle relative to horizontal Download PDFInfo
- Publication number
- FR2876963A1 FR2876963A1 FR0411217A FR0411217A FR2876963A1 FR 2876963 A1 FR2876963 A1 FR 2876963A1 FR 0411217 A FR0411217 A FR 0411217A FR 0411217 A FR0411217 A FR 0411217A FR 2876963 A1 FR2876963 A1 FR 2876963A1
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- France
- Prior art keywords
- seat
- motor
- vehicle
- floor
- rotation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000000284 resting effect Effects 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000006073 displacement reaction 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
- B60N2/02246—Electric motors therefor
-
- 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
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/067—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable by linear actuators, e.g. linear screw mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
Description
VEHICULE COMPRENANT UN SIEGE COMMANDE PAR UN MOTEURVEHICLE COMPRISING A SEAT CONTROL BY A MOTOR
A CARACTERISTIQUES ASYMETRIQUESA ASYMMETRIC CHARACTERISTICS
L'invention concerne la commande du déplacement d'un siège de véhicule automobile au moyen d'un moteur. The invention relates to controlling the movement of a motor vehicle seat by means of a motor.
Elle vise plus particulièrement à faciliter le réglage en position du siège. It is more particularly to facilitate the adjustment in position of the seat.
On connaît de manière usuelle un véhicule reposant sur le sol suivant un plan de contact, ledit véhicule comprenant: un plancher, un siège lié au plancher, un dispositif de réglage du siège pour faire coulisser le siège par rapport au plancher suivant une direction de réglage légèrement inclinée par rapport audit plan de contact, de sorte que le coulissement du siège dans un sens induit une légère montée et le coulissement en sens opposé induit une légère descente, un moteur tournant dans un premier sens de rotation pour commander au siège de se déplacer dans le sens de la montée et dans un deuxième sens de rotation pour commander au siège de se déplacer dans le sens de la descente. It is customary to know a vehicle resting on the ground in a contact plane, said vehicle comprising: a floor, a seat connected to the floor, a seat adjustment device for sliding the seat relative to the floor in a direction of adjustment slightly inclined relative to said plane of contact, so that the sliding of the seat in one direction induces a slight rise and the sliding in the opposite direction induces a slight descent, a motor rotating in a first direction of rotation to control the seat to move in the direction of the rise and in a second direction of rotation to control the seat to move in the direction of the descent.
Il est apparu de manière surprenante que l'inclinaison de la direction de réglage du siège compliquait sensiblement l'obtention de la position désirée par l'utilisateur. En effet, l'utilisateur a généralement tendance à osciller autour de la "bonne position" avant de se satisfaire du réglage. Or, le fait que le siège se déplace plus vite dans le sens de la descente que dans le 3o sens de la montée va avoir tendance à créer une dérive dont l'utilisateur n'a pas conscience. Il va alors passer plus de temps qu'il le souhaiterait pour régler son siège et adopter finalement une position qui va se révéler moins bonne que celle qu'il aurait souhaitée. L'utilisateur a alors l'impression qu'il n'est pas possible de régler le siège de manière satisfaisante. Il en résulte une qualité perçue dégradée. Surprisingly, it appeared that the inclination of the adjustment direction of the seat made it much more difficult to obtain the position desired by the user. Indeed, the user generally tends to oscillate around the "good position" before being satisfied with the setting. However, the fact that the seat moves faster in the direction of descent than in the 3o direction of the climb will tend to create a drift of which the user is not aware. He will then spend more time than he would like to settle his seat and finally adopt a position that will be less good than he would have liked. The user then has the impression that it is not possible to adjust the seat satisfactorily. This results in a perceived poor quality.
Certes, il a déjà été prévu d'utiliser des moyens élastiques pour remédier à ce problème. Toutefois, la mise en oeuvre de cette solution n'est pas aisée. De plus, elle génère des bruits indésirables et ne présente pas une excellente tenue dans le temps. Admittedly, it has already been planned to use elastic means to remedy this problem. However, the implementation of this solution is not easy. In addition, it generates unwanted noise and does not have an excellent behavior over time.
Pour y remédier, conformément à l'invention, le moteur présente des caractéristiques telles que pour un couple résistant donné le moteur présente une vitesse de rotation supérieure lorsqu'il tourne dans le premier sens de rotation que lorsqu'il tourne dans le deuxième sens de rotation. To remedy this, in accordance with the invention, the motor has characteristics such that for a given resisting torque the motor has a higher rotational speed when it rotates in the first direction of rotation than when it rotates in the second direction of rotation. rotation.
Le couple à exercer par le moteur dans le sens de la montée étant supérieure, on compense ainsi l'effet de la pente et on réduit par conséquent les différences de vitesse selon le sens de déplacement. Since the torque to be exerted by the engine in the upward direction is greater, the effect of the slope is thus compensated for and the speed differences are consequently reduced in the direction of travel.
Avantageusement, le moteur présente des différences de caractéristiques selon le sens de rotation telles que lorsque le siège supporte une personne pesant sensiblement 70 kilogrammes, ledit siège coulisse sensiblement à la même vitesse à la montée et à la descente. Advantageously, the engine has differences in characteristics in the direction of rotation such that when the seat supports a person weighing substantially 70 kilograms, said seat slides substantially at the same speed on the ascent and descent.
Selon une autre caractéristique conforme à l'invention, le moteur est de type électrique à courant continu et le commutateur du moteur est angulairement décalé par rapport à la ligne de commutation des balais. According to another characteristic in accordance with the invention, the motor is of the DC electric type and the motor switch is angularly offset with respect to the switch line of the brushes.
Un tel moteur est en soit connu, de sorte que cette solution est relativement simple et fiable, n'engendre pas un surcoût notable et ne dégrade pas sensiblement les caractéristiques de fonctionnement du moteur. Such an engine is known, so that this solution is relatively simple and reliable, does not generate a significant additional cost and does not substantially degrade the operating characteristics of the engine.
L'invention sera mieux comprise à la lecture des dessins sur lesquels: la figure 1 illustre un véhicule conforme à 35 l'invention, - les figures 2 et 3 sont respectivement des vues de dessus et de profil à échelle agrandie de la partie reliant le siège au plancher du véhicule, - la figure 4 représente, pour chaque sens de 5 rotation du moteur, la vitesse de rotation du moteur en fonction du couple qui lui est opposé. The invention will be better understood on reading the drawings, in which: FIG. 1 illustrates a vehicle according to the invention, FIGS. 2 and 3 are respectively views from above and in profile on an enlarged scale of the part connecting the seat at the floor of the vehicle; FIG. 4 represents, for each direction of rotation of the engine, the speed of rotation of the engine as a function of the torque opposite it.
La figure 1 illustre un véhicule 1 présentant un châssis reposant sur un sol 2 par l'intermédiaire de roues 42. Ledit châssis comprend notamment un plancher 4 lo s'étendant sensiblement parallèlement au sol 2, de sorte que lorsque le plan de contact entre le véhicule et le sol est sensiblement horizontal, le plancher 4 s'étend lui aussi sensiblement horizontalement. FIG. 1 illustrates a vehicle 1 having a chassis resting on a floor 2 by means of wheels 42. Said frame comprises in particular a floor 4 lo extending substantially parallel to the ground 2, so that when the plane of contact between the vehicle and the ground is substantially horizontal, the floor 4 also extends substantially horizontally.
Un siège 6 repose sur le plancher 4 par l'intermédiaire de supports avant 36 et de supports arrière 38. La distance séparant le siège 6 du volant et des pédales du véhicule est réglable suivant une direction de réglage 10 par l'intermédiaire de deux glissières 26 interposées entre d'une part le siège 6 et d'autre part les supports avant 36 et arrière 38. Les supports avant 36 sont sensiblement plus hauts que les supports arrière 38, de sorte que la direction de réglage 10 est inclinée par rapport au plancher 4 d'un angle a généralement compris entre 5 et 10 . Ainsi, lorsqu'on avance le siège 6 dans un sens d'avance 9 permettant de le rapprocher des commandes du véhicule, celui-ci monte légèrement par rapport au plancher 4. Inversement, lorsqu'on déplace le siège 6 dans un sens de recul 11 opposé au sens d'avance 9, le siège 6 descend légèrement en se rapprochant du plancher 4. A seat 6 rests on the floor 4 via front supports 36 and rear brackets 38. The distance between the seat 6 of the steering wheel and the vehicle pedals is adjustable in a direction of adjustment 10 by means of two slides 26 interposed between the seat 6 on the one hand and the front and rear supports 36 on the other hand 36. The front supports 36 are substantially higher than the rear supports 38, so that the adjustment direction 10 is inclined with respect to floor 4 of an angle generally has between 5 and 10. Thus, when the seat 6 is advanced in a forward direction 9 to bring it closer to the controls of the vehicle, it rises slightly compared to the floor 4. Conversely, when the seat 6 is moved in a backward direction 11 opposite the direction of advance 9, the seat 6 descends slightly approaching the floor 4.
Tel qu'illustré plus précisément aux figures 2 et 3, les glissières 26 comprennent chacune une partie inférieure 28 et une partie supérieure 30. La partie inférieure 28 est solidaire du plancher 4 par l'intermédiaire des supports avant 36 et des supports arrière 38. La partie supérieure 30 est quant à elle solidaire du siège 6. As is more specifically illustrated in FIGS. 2 and 3, the slideways 26 each comprise a lower portion 28 and an upper portion 30. The lower portion 28 is integral with the floor 4 via the front supports 36 and rear supports 38. The upper part 30 is secured to the seat 6.
Le coulissement de la partie supérieure 30 par rapport à la partie inférieure 28 suivant la direction de réglage 10 est commandé par un moteur 8 entraînant en rotation deux vis sans 44 par l'intermédiaires de deux arbres 32 et de réducteurs 34. Lesdites vis sans fin sont montée pivotante sur la partie supérieure 30 de chacune des glissières 26. Elles coopèrent avec des supports 46 formant écrous, fixés au plancher 4. Sliding of the upper portion 30 relative to the lower portion 28 in the direction of adjustment 10 is controlled by a motor 8 driving in rotation two screws without 44 through two shafts 32 and reducers 34. Said worm are pivotally mounted on the upper part 30 of each of the slides 26. They cooperate with supports 46 forming nuts, fixed to the floor 4.
Lorsque le plan de contact entre le sol 2 et le io véhicule 1 est horizontal, la direction de réglage 10 est inclinée de l'angle a par rapport à l'horizontale, de sorte que le moteur 8 doit fournir un couple plus important pour déplacer le siège 6 dans le sens d'avance 9 que pour le déplacer dans le sens de recul 11. When the plane of contact between the ground 2 and the vehicle 1 is horizontal, the adjustment direction 10 is inclined by the angle α relative to the horizontal, so that the motor 8 must provide a greater torque to move. the seat 6 in the direction of advance 9 only to move it in the direction of recoil 11.
A la figure 4, la courbe 12 représente la vitesse de rotation du moteur 8 en fonction du couple résistant qui lui est opposé lorsqu'il tourne dans le sens tendant à déplacer le siège dans le sens d'avance 9. La courbe 14 illustre cette même caractéristique, mais lorsque le moteur 8 tourne dans le sens opposé, tendant à déplacer le siège 6 dans le sens de recul 11. Pour déplacer le siège 6 et un passager 40 assis dessus et pesant environ 70 kg dans le sens d'avance 9, le moteur 8 doit développer un couple 16 afin de s'opposer, d'une part, aux frottements des parties supérieure 28 et inférieure 30 de chacune des glissière 26 et aux diverses pertes d'énergie, et d'autre part, à l'effet résultant du poids sur la glissière 26. Pour déplacer le siège 6 dans le sens de recul 11, le moteur 8 doit développer un couple 18 afin de vaincre les frottements s'exerçant entre les parties supérieure 28 et inférieure 30 de chacune des glissière 26 et les pertes diverses, moins l'effet résultant du poids s'exerçant sur les glissières 26. In FIG. 4, the curve 12 represents the speed of rotation of the motor 8 as a function of the resisting torque which is opposite to it when it rotates in the direction tending to move the seat in the direction of advance 9. The curve 14 illustrates this same characteristic, but when the motor 8 rotates in the opposite direction, tending to move the seat 6 in the direction of recoil 11. To move the seat 6 and a passenger 40 sitting on it and weighing about 70 kg in the direction of advance 9 , the motor 8 must develop a torque 16 in order to oppose, on the one hand, the friction of the upper 28 and lower 30 parts of each of the slideway 26 and to the various energy losses, and on the other hand, to the the effect resulting from the weight on the slide 26. To move the seat 6 in the direction of recoil 11, the motor 8 must develop a torque 18 in order to overcome the friction exerted between the upper 28 and lower 30 of each of the slide 26 and various losses, me ns the effect resulting from the weight exerted on the slides 26.
Le moteur 8 est un moteur électrique à courant 35 continu. 1l a été choisi de telle sorte que son point de fonctionnement 22 lorsqu'il tourne dans le sens tendant à déplacer le siège 6 dans le sens d'avance 9 correspond à une vitesse de rotation 20 sensiblement identique à celle de son point de fonctionnement 24 correspondant au déplacement du siège 6 dans le sens de recul 11. The motor 8 is a DC electric motor. It has been chosen so that its operating point 22 when it rotates in the direction tending to move the seat 6 in the direction of advance 9 corresponds to a rotational speed 20 substantially identical to that of its operating point 24. corresponding to the displacement of the seat 6 in the direction of recoil 11.
L'ajustement entre les courbes 12 et 14, afin d'obtenir sensiblement la même vitesse de rotation 20 pour les points de fonctionnement 22 et 24, est obtenu en décalant angulairement le commutateur du moteur par rapport à la ligne de commutation des balais. The adjustment between the curves 12 and 14, in order to obtain substantially the same rotational speed for the operating points 22 and 24, is obtained by angularly shifting the motor switch relative to the brush switch line.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0411217A FR2876963B1 (en) | 2004-10-21 | 2004-10-21 | VEHICLE COMPRISING A SEAT CONTROL BY A MOTOR WITH ASYMMETRIC FEATURES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0411217A FR2876963B1 (en) | 2004-10-21 | 2004-10-21 | VEHICLE COMPRISING A SEAT CONTROL BY A MOTOR WITH ASYMMETRIC FEATURES |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2876963A1 true FR2876963A1 (en) | 2006-04-28 |
FR2876963B1 FR2876963B1 (en) | 2007-01-26 |
Family
ID=34950170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0411217A Expired - Fee Related FR2876963B1 (en) | 2004-10-21 | 2004-10-21 | VEHICLE COMPRISING A SEAT CONTROL BY A MOTOR WITH ASYMMETRIC FEATURES |
Country Status (1)
Country | Link |
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FR (1) | FR2876963B1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4838511A (en) * | 1986-07-30 | 1989-06-13 | Aisin Seiki Kabushiki Kaisha | Power seat apparatus for automotive vehicles |
EP0589421A1 (en) * | 1992-09-25 | 1994-03-30 | FERRERO GIULIO S.p.A. | Adjustable vehicle seat |
US5456439A (en) * | 1993-12-15 | 1995-10-10 | Itt Corporation | Vehicle power seat adjuster with self-aligning lead screw actuator |
US5483853A (en) * | 1993-10-14 | 1996-01-16 | Bertrand Faure France | Systems for adjusting vehicle seats |
US5507552A (en) * | 1994-01-04 | 1996-04-16 | Itt Corporation | Rotatable seat belt buckle mounting bracket for a vehicle seat adjuster with a catcher bracket buckle brace |
-
2004
- 2004-10-21 FR FR0411217A patent/FR2876963B1/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4838511A (en) * | 1986-07-30 | 1989-06-13 | Aisin Seiki Kabushiki Kaisha | Power seat apparatus for automotive vehicles |
EP0589421A1 (en) * | 1992-09-25 | 1994-03-30 | FERRERO GIULIO S.p.A. | Adjustable vehicle seat |
US5483853A (en) * | 1993-10-14 | 1996-01-16 | Bertrand Faure France | Systems for adjusting vehicle seats |
US5456439A (en) * | 1993-12-15 | 1995-10-10 | Itt Corporation | Vehicle power seat adjuster with self-aligning lead screw actuator |
US5507552A (en) * | 1994-01-04 | 1996-04-16 | Itt Corporation | Rotatable seat belt buckle mounting bracket for a vehicle seat adjuster with a catcher bracket buckle brace |
Also Published As
Publication number | Publication date |
---|---|
FR2876963B1 (en) | 2007-01-26 |
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