Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
  • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
  • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
  • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
  • B60N2/4207—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces
  • B60N2/4235—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces transversal
• • 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
  • B60N2/062—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 transversally slidable
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
  • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
  • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
  • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
  • B60N2/427—Seats or parts thereof displaced during a crash
  • B60N2/42727—Seats or parts thereof displaced during a crash involving substantially rigid displacement
  • B60N2/42736—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the whole seat
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
  • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
  • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
  • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
  • B60N2/427—Seats or parts thereof displaced during a crash
  • B60N2/42727—Seats or parts thereof displaced during a crash involving substantially rigid displacement
  • B60N2/42754—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the cushion

Definitions

• the invention relates to a vehicle seat according to the preamble of claim 1 and a method for controlling the vehicle seat according to the preamble of claim 5.
• a vehicle seat is known from the generic DE 3023035 AI, which is suitable for significantly reducing the occupant load in the event of a side impact.
• the seat comprises a seat holder, which allows a lateral movement of the seat relative to the seat holder in the vehicle in the event of a side impact.
• the transverse movement can take place by means of a transverse displacement drive, so that in the event of an intrusion of a collision object into the vehicle, a vehicle occupant experiences a relative movement away from the intrusion location and towards the center of the vehicle due to the transverse movement of the entire seat in the direction of impact.
• the transverse movement of the seat can be controlled in such a way that the displacement of the seat is initiated before the forces resulting from the intrusion act, the displacement forces and the displacement time being adapted to an optimal protective effect.
• the object of the invention is to provide a vehicle seat and a method for controlling the vehicle seat, with which an occupant can be protected as much as possible by means of his transverse displacement in the event of a side impact. This object is achieved with respect to the vehicle seat by the features of claim 1 and with respect to the method by the features of claim 4.
• the invention is based on a vehicle seat in a motor vehicle, which has a relative movement in the event of a side impact. Movement of the occupant sitting on it, away from the side of the vehicle facing the impact, towards the center of the vehicle. Alternatively, the lateral displacement of the vehicle occupant can also be initiated before the time of the collision.
• the lateral displacement of the vehicle occupant can also be initiated before the time of the collision.
• the vehicle seat for the displacement of an occupant, it is not the vehicle seat as a whole, but rather an individual seat component, in particular a seat cushion, which can be displaced transversely to the vehicle longitudinal axis independently of the rest of the vehicle seat. It goes without saying that several seat cushions can also be individually laterally displaceable.
• the advantage of the invention is that the mass to be accelerated is reduced, which enables a smaller displacement unit, which can be accelerated and braked more quickly.
• the space available for the displacement is reduced since other seat components such as the seat frame are not moved.
• Another advantage is that a larger displacement path is made possible for an occupant than is the case when the entire seat is displaced.
• An additional advantage of a vehicle seat according to the invention is that parts of the vehicle seat which are not displaced, for example a seat frame or a seat longitudinal displacement mechanism, can absorb additional deformation energy.
• the displaceable seat cushions are those parts of the vehicle seat which have frictional or form-fitting engagement with the occupant, so that their displacement causes the occupant to be displaced transversely.
• such seat cushions can be, for example, a seat surface, a seat back, a headrest, a seat side cushion or an armrest.
• the transverse displacement of an occupant ie the displacement of the desired body parts / body areas of the occupant towards the vehicle middle is done by a power transmission to the occupant through the seat cushion.
• a locking device for a displaceable seat cushion which fixes the cross-shifted seat cushion in its end position following a transverse displacement.
• the locking device can be a mechanical device, which becomes active automatically after the seat cushion has reached a predeterminable end position.
• a controllable locking device can be provided, which fixes the seat cushion in an end position.
• several different end positions can be predefined by a control unit, the end positions being predefined as a function of occupant parameters and / or accident parameters.
• a method for controlling the vehicle seat according to the invention is specified below.
• the transverse displacement of the seat cushion is made before initiated at the time of the collision, in particular the actual transverse displacement already begins before the time of the collision and has not yet ended at the time of the collision, that is to say at the time when the collision object just touches the vehicle.
• the acceleration of the vehicle seat cushion towards the center of the vehicle has already been completed at the time of the collision. Due to the lateral acceleration of the occupant before the time of the collision, he is not only moved out of the danger zone, but also experiences an acceleration which has the same direction as the acceleration which the vehicle experiences due to the collision.
• An advantageous time for triggering the transverse displacement of a seat cushion is the time which is before the time of the collision by the triggering time t 0 .
• the variables occurring in this equation to determine the tripping time to are: ti is the sum of the dead times of the overall system for transverse seat displacement, t 3 the displacement time, i.e.
• the tripping time t 0 can be extended by a constant which is, for example, vehicle-specific.
• the trigger time to can be adapted to an accident by expanding the above calculation rule non-linearly or by adding further parameters, such as the mass of the collision object or the structural rigidity of the vehicle at the point of impact.
• the optimal acceleration values for a seat cushion are above 5 g in order to move an occupant out of the danger zone quickly enough, and on the other hand acceleration values over 10 g do not result in a gain in the speed of the occupant transverse displacement which justifies the measures required for this.
• a distance between 80 mm and 120 mm is advantageous as a displacement path, that is, as the maximum possible distance by which a seat cushion is moved towards the center of the vehicle.
• the shifting time that is the time period in which the seat cushion moves sideways, is preferably between 100 ms and 150 ms.

Landscapes

• Engineering & Computer Science (AREA)
• Aviation & Aerospace Engineering (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Seats For Vehicles (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=7702489

Family Applications (1)

Country Status (5)

Cited By (4)

Families Citing this family (7)

Citations (7)

Family Cites Families (15)

• 2001
  • 2001-10-13 DE DE10150719A patent/DE10150719B4/de not_active Expired - Lifetime
• 2002
  • 2002-08-24 US US10/492,186 patent/US7374223B2/en not_active Expired - Lifetime
  • 2002-08-24 WO PCT/EP2002/009492 patent/WO2003033294A1/de not_active Ceased
  • 2002-08-24 JP JP2003536054A patent/JP3931341B2/ja not_active Expired - Lifetime
  • 2002-08-24 EP EP02772204A patent/EP1434703B1/de not_active Expired - Lifetime

Patent Citations (7)

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events