DE102013021163A1 - Device for controlling safety belt of motor vehicle to reduce loosening of belt after application, has power level manually predetermined for reducing belt loosening, where input unit is arranged in vehicle interior - Google Patents

Abstract

The device has a power level manually predetermined for reducing the belt loosening. An input unit is arranged in a vehicle interior for predetermining the force level. A seat belt (3) is rolled up in an unfastened state on a belt retractor (5) for application. An independent claim is included for a method for controlling a safety belt of a motor vehicle to reduce the loosening of the belt after an application.

Description

The invention relates to a device and a method for controlling a safety belt of a vehicle to reduce a belt slack after applying the seat belt.

From the DE 10 2005 048 991 A1 a safety system for a vehicle is known. The security system provides that at least one setting process of at least one security system component is initiated before, during or after the journey starts. This adjustment process is displayed to the occupant.

The object of the invention is to provide a device which is improved over the prior art and an improved method for actuating an occupant restraining means of a vehicle.

The object is achieved with respect to the device by the in claim 1 and in terms of the method by the features specified in claim 3.

Advantageous embodiments of the invention are the subject of the dependent claims.

A device for controlling a safety belt of a vehicle to reduce a belt slack after applying the seat belt is designed such that according to the invention for reducing the belt slack, a force level is manually specifiable.

By means of the manual specification of the force level, the reduction of the belt slack is substantially individual according to the wishes of the occupant, whereby a comfort in relation to the applied seat belt is increased. In addition, a measure of safety in case of accident of the vehicle can be increased, since the seat belt according to the requirement by the occupant streamlined applied to the occupant.

By specifying the force level to reduce the slack, the risk of the occupant being completely disabled at least in deactivating a function to reduce the slack is minimized, since a force level appropriate to the wishes of the occupant can be set.

In particular, the reduction of the belt slacks according to a height, a sitting position and a clothing of the occupant acts differently on these, wherein an excessive level of force can affect the occupant uncomfortable. This unpleasant feeling can at least be reduced by means of the specification of the force level.

Embodiments of the invention will be explained in more detail below with reference to a drawing.

It shows:

1 schematically an occupant on a vehicle seat with a seat belt.

In the only figure is an inmate 1 on a vehicle seat 2 shown, the inmate 1 a the vehicle seat 2 associated seat belt 3 has created.

At the safety belt 3 it is a three-point belt, allowing the occupant 1 in the applied state of the seat belt 3 connected to three points of a vehicle body.

A first connection point P1 is located in a lower region of a B-pillar, not shown, of the vehicle. A second connection point P2 of the seat belt 3 forms a buckle 4 , in which a slidable on the seat belt 3 arranged, not shown buckle tongue can be inserted. A third connection point P3 is located in an upper area of the B-pillar, here a belt retractor 5 is arranged. Alternatively, the belt retractor 5 be arranged in another area.

The safety belt 3 is in unassembled condition on the belt retractor 5 rolled up and is to create this unrollable.

The safety belt 3 must be for optimum restraint of the occupant 1 in the event of an accident involving the vehicle, lie snugly so that the occupant 1 Participates as early as possible in a total delay of the vehicle. This can reduce a risk of injury to the occupant.

A condition in which the seat belt 3 For example, by comparatively thick clothing, especially in winter, not streamlined at the occupant 1 is applied, is called belt slack.

To reduce the slack is an unspecified electric motor in the belt retractor 5 integrated, which usually after inserting the buckle tongue in the buckle 4 is controlled. The electric motor rotates with a predetermined torque, which causes the belt retractor 4 turns and thus the seat belt 3 after the application of the same is partially rolled up, whereby the belt slack is at least reduced.

The safety belt 3 is tightened to reduce the slack, wherein when tightening using the seatbelt 3 a force on the occupants 1 is exercised. These on the upper body, especially the chest, of the occupant 1 acting force is depending on the seating position, body type and height of the occupant 1 perceived differently. In particular occupants 1 with small body size and women feel the force acting while reducing the slack often disturbing or at least unpleasant.

For a comfort for occupants 1 , who feel the increased-acting force in reducing slackness to be uncomfortable or distracting, it is envisaged that a level of force with which the safety belt 3 to reduce the slack is tightened, can be specified.

For this purpose, an input unit not shown in detail is present in the vehicle interior, by means of which a force level, in particular seat-related, is adjustable, and it can also be provided that the reduction of belt slack is disabled.

For example, it is possible to adjust the force level in three different stages, the seat belt 3 is tightened with one strength level. In this case, a first stage may represent a comparatively low level of force, a second stage a medium level of force and a third stage a relatively high level of force.

Alternatively, an adjustment of the force level can also be infinitely variable.

In one possible embodiment, this is done by the occupant 1 selected power level to reduce the slack in a storage unit stored. This makes it possible for the occupant 1 is identified at a renewed departure, this level of force from the storage unit at a renewed application of the seat belt 3 is retrieved and set automatically.

Thus, the inmate needs 1 do not re-select and adjust the force level.

By having different levels of force to reduce slack when putting on the seatbelt 3 Selectable and adjustable, the probability is that the occupant 1 the reduction of belt slack completely disabled, comparatively low.

The inmate 1 sets a level of strength which he finds pleasing when tightening the seatbelt 3 so that the safety of the occupant 1 is increased at an accident of the vehicle, even if the seat belt 3 was tightened with a relatively low level of force.

By means of the possibility of adjusting the level of force becomes a comfort for the occupant 1 while improving safety for the occupant 1 is increased at an accident of the vehicle.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102005048991 A1 [0002]

Claims (4)

Device for controlling a safety belt ( 3 ) of a vehicle to reduce a belt slack after wearing the seat belt ( 3 ), characterized in that for reducing the slack a force level is manually specifiable. Apparatus according to claim 1, characterized in that for the specification of the force level arranged in the vehicle interior input unit is arranged. Method for controlling a safety belt ( 3 ) of a vehicle to reduce a belt slack after wearing the seat belt ( 3 ), characterized in that the belt slack in dependence of one of the occupant ( 1 ) Prescribable force levels is reduced. A method according to claim 3, characterized in that by the occupant ( 1 ) predetermined force level is stored.

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