Patents Assigned to Autoliv Development AS
  • Publication number: 20120098324
    Abstract: A drive arrangement (1) for driving a motor (9) in a seat belt pre-tensioner incorporates a power supply circuit (6) in the form of an H bridge and a voltage boost circuit 16 which are controlled by a control unit (17). The control unit (17) controls the voltage boost circuit (16) to increase the voltage output to the motor (9) to speed up the rotation of the motor (9) whilst the motor (9) winds in slack in a seat belt (13).
    Type: Application
    Filed: September 13, 2011
    Publication date: April 26, 2012
    Applicant: AUTOLIV DEVELOPMENT AB
    Inventors: Antoine Fouilleul, Roger Darraba
  • Publication number: 20120098241
    Abstract: A steering wheel unit with an airbag module and a steering wheel body is connectable to a steering column defining the axial direction. The steering wheel body includes an accommodation for the airbag module in the hub area. The airbag module can be pressed down against the steering wheel body against the force of at least one spring and at least two positioning units act between the airbag module and the steering wheel body. The positioning units are arranged in a center of gravity plane being perpendicular to the axial direction. In order to provide an easy mountability and a high degree of flexibility in respect of the installation space, the positioning units act at least in non-axial direction and the at least one spring is spaced from the positioning units.
    Type: Application
    Filed: December 4, 2009
    Publication date: April 26, 2012
    Applicant: AUTOLIV DEVELOPMENT AB
    Inventor: Raimund Nebel
  • Publication number: 20120096735
    Abstract: Disclosed is a method for folding an airbag (1) for placement in an airbag module for a motor vehicle. The method involves folding the airbag (1), exposing the airbag (1) to moisture, compressing the airbag (1), and simultaneously extracting the moisture. Moisture in liquid or vapor form can be introduced before or after folding the airbag. Further disclosed is a device for folding the airbag.
    Type: Application
    Filed: July 14, 2010
    Publication date: April 26, 2012
    Applicant: AUTOLIV DEVELOPMENT AB
    Inventors: Raimund Nebel, Oliver Adolph, Jürgen Mackensen
  • Publication number: 20120091695
    Abstract: A safety device for a vehicle seat is disclosed. The vehicle seat has a backrest that extends in the transverse direction of the vehicle, the backrest having at least one lateral region and an upper region from which a headrest extends. Arranged on the backrest is a side airbag device with at least one inflator and a side airbag. The side airbag has a thorax section (22). The head section (26) emerges from the upper region of the backrest (12) beside the headrest (14) when the inflator is actuated, and the inner wall (26a) of the head section (26) is toward the interior of the vehicle relative to the inner wall (22a) of the thorax section (22). The inner wall (22a) of the thorax section (22) and the outer wall (26b) of the head section (26) are connected via overflow openings (31, 34).
    Type: Application
    Filed: June 10, 2010
    Publication date: April 19, 2012
    Applicant: AUTOLIV DEVELOPMENT AB
    Inventors: Olivier Richez, Sebastien Vanzieleghem, Gilles Garret, Sylvain Langlet
  • Patent number: 8157291
    Abstract: A safety arrangement for a motor vehicle includes an airbag and a crash sensor system. The airbag is normally folded together in a non-activated basic state and is able to be inflated with different volumes. The crash sensor system detects a vehicle impact and emits an activation signal. The crash sensor system includes both a pre-crash sensor system and also an in-crash sensor system, and emits a pre-crash activation signal as activation signal upon detection of an impending collision. The in-crash sensor system detects an actual impact and emits an in-crash activation signal (backup) if the pre-crash sensor system has previously not detected the impending collision and has not emitted a pre-crash activation signal. The airbag may be inflated to a larger airbag volume and to a relatively smaller airbag volume in an in-crash mode.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: April 17, 2012
    Assignee: Autoliv Development AB
    Inventors: Johann Mayer, Thomas Schmidbauer, Thomas Wohllebe, Mark Gonter
  • Patent number: 8157290
    Abstract: An Inflatable curtain airbag for a vehicle comprising an airbag body (1) rolled or folded to form a longitudinal airbag package with several attachment portions (6) and an indication element (2) for indicating a twisted attachment status of the airbag at the vehicle structure. The indication element (2) is arranged in a releasable manner along at least parts of the longitudinal extension of the package.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: April 17, 2012
    Assignee: Autoliv Development AB
    Inventors: Fredrik Kjell, Andreas Jorlöv, Henrik S. Johansson
  • Patent number: 8157292
    Abstract: A seat belt device for a vehicle includes a buckle head mounted on a seat and designed to couple with a tongue and a carriage unit allowing the buckle head to be displaced in horizontal and vertical directions of the seat so that the buckle head and the tongue are easily coupled to or decoupled from each other when a belt is fastened or unfastened. The seat belt device facilitates fastening of a seat belt more conveniently by allowing for the horizontal and vertical displacement of a buckle head.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: April 17, 2012
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Autoliv Development AB
    Inventors: Byoung-Gae You, Il Hwan Kim
  • Patent number: 8155841
    Abstract: A crash detection arrangement, to be installed in a motor vehicle, for detecting a crash and providing a control signal for controlling a safety device in the event that a crash is detected, the arrangement comprising an accelerometer and a control unit, the accelerometer being arranged to supply a signal to the control unit which is indicative of the acceleration of the vehicle, the control unit being adapted to: calculate a classification parameter based on the value of the signal from the accelerometer during a classification time period, which includes an interval of time before an initiation criterion was fulfilled; modify a crash evaluation algorithm in dependence upon the classification parameter; and perform the crash evaluation algorithm upon fulfillment of the initiation criterion to produce the control signal.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: April 10, 2012
    Assignee: Autoliv Development AB
    Inventor: Yannick Erb
  • Publication number: 20120074253
    Abstract: A seat belt retractor for a safety belt of a motor vehicle having a belt shaft (1) rotatably mounted in a frame, a profile head (2) lockable in relation to the frame, a load limiting device (20) located between the profile head (2) and the belt shaft (1) for enabling the belt shaft (1) to undergo a load limited rotation in the belt webbing extraction direction (A) with the profile head (2) being locked and a load limiting level predetermined by the load limiting device (20) being exceeded.
    Type: Application
    Filed: May 28, 2010
    Publication date: March 29, 2012
    Applicant: AUTOLIV DEVELOPMENT AB
    Inventors: Bengt Dahlquist, Erik Arthur Rydsmo, Fredrik Wigström
  • Publication number: 20120074673
    Abstract: A fixing clamp for fixing an airbag on a gas generator includes a first support portion adapted to the outer shape of the gas generator and a second wrapping portion extending from the support portion. The wrapping portion with its free end can be connected to the support portion. The wrapping portion is designed to be extensible.
    Type: Application
    Filed: May 27, 2010
    Publication date: March 29, 2012
    Applicant: AUTOLIV DEVELOPMENT AB
    Inventors: Ola Henriksson, Börje Jakobsson, Stefan Andersson, Carl-Johan Svensson
  • Publication number: 20120073401
    Abstract: A steering wheel has a rim with an armature substantially encapsulated by foam. The foam includes a major foam member and a separate minor foam member. The major foam member has a cross-sectional profile effective to cover a major cross-sectional extent of the armature and define a gap in the foam member adjacent the armature. The gap has a maximum cross-sectional width which is equal to or less than the cross-sectional width of the armature, and is substantially filled by said minor foam member.
    Type: Application
    Filed: May 17, 2010
    Publication date: March 29, 2012
    Applicant: Autoliv Development AB
    Inventors: Laurent Groleau, Olivier Bertrand
  • Patent number: 8141899
    Abstract: A curtain air bag device which allows a bag main body to expansively spread more quickly and reliably. A curtain air bag device comprises a bag main body received inside a head lining disposed on the window upper edge of a vehicle and designed to expansively spread from the lower end of the head lining toward the interior of the vehicle at the time of actuation; and a gas supply device for supplying expansion gas to the bag main body. The bag main body has a plurality of chambers which expand during operation; and a duct extending above the chambers along the window upper edge to distribute the gas to respective chambers. Further, the duct has an expansion region where the lower end is disposed lower than the lower end of the head lining during spreading.
    Type: Grant
    Filed: May 8, 2005
    Date of Patent: March 27, 2012
    Assignee: Autoliv Development AB
    Inventors: Takashi Arima, Masanori Narita
  • Patent number: 8141897
    Abstract: There is provided a guide plate for a side air bag. The guide plate includes a fastening member fastened to an inner surface of a vehicle body, a support member bent from a lower end of the fastening member and extending toward a passenger space of a vehicle, and a retaining member extending from a surface of the fastening member toward the passenger space of the vehicle. As the guide plate prevents a side air bag tube from being deployed in an upward direction, force for deploying the side air bag tube is not spread but concentrated to allow the side air bag tube to be properly deployed by opening a head liner.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: March 27, 2012
    Assignee: Autoliv Development AB
    Inventors: Myung-ryun Jang, Byoung-sun Yoo, Tae-woo Kim, Dong-jun Lee, Eun-hwan Oh, Kyun-soon Choi
  • Patent number: 8141808
    Abstract: A retractor including a spindle for winding a seat belt; a frame for rotatably supporting the spindle; a winding spring for biasing the rotation of the spindle in the direction of winding the seat belt; and a magnetic disc and a magnet sensor unit for detecting the rotation of the spindle. The magnetic disc and the magnet sensor unit are disposed between the frame and the winding spring, and are each made of a magnetic material. Hence, the seat belt device can be less affected by a disturbance magnetic field and can detect the rotation of the spindle at high reliability.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: March 27, 2012
    Assignee: Autoliv Development AB
    Inventors: Eiji Maemura, Susumu Nakajima
  • Publication number: 20120068443
    Abstract: A side airbag unit for mounting on or in the backrest of a vehicle seat includes an airbag skin enclosing a gas chamber, and an inflator for filling of said gas chamber. The airbag skin exhibits a main section which serves for protection of the vehicle occupant when the side airbag is expanded and which in the resting state of the side airbag is present as a package, wherein the package is at least partly rolled. In order to provide a side airbag unit of low weight with its airbag skin nevertheless showing a controlled and reproducible expansion behaviour, the airbag skin further comprises at least one auxiliary section which in the resting state encompasses the main section in two layers at least in sections, wherein an additional area of the gas chamber is present between the two layers of the auxiliary section at least in the resting state.
    Type: Application
    Filed: May 14, 2010
    Publication date: March 22, 2012
    Applicant: AUTOLIV DEVELOPMENT AB
    Inventor: Mats Berntsson
  • Patent number: 8136210
    Abstract: A seat belt (2) for motor vehicles, has a restraining element (4) for a seat belt tongue (3). The restraining element protrudes from the seat belt (2), from only on one side thereof and the seat belt (2) may be configured as a multi-layer seat belt (2) forming a hollow space (5) between the seat belt layers (21, 22).
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: March 20, 2012
    Assignee: Autoliv Development AB
    Inventor: Michael Strutz
  • Patent number: 8136842
    Abstract: A deflector for a safety belt system of a motor vehicle with a metal core, which has a mounting aperture in the upper section (12) and a belt loop in the lower section, and a plastic element that encompasses at least some sections of the metal core. The plastic element having a first section (30), which is fixed on the metal core, and a second section (50) connected to the first section (30) by means of a film hinge (60), which in the fully assembled state covers at least the front side of the upper section (12) of the metal core and engages with the first section. In order to reliably prevent the second section (50) from becoming detached from the first section (30) in case an expanding curtain airbag makes impact on the second section, one of the two sections of the plastic element has a nose (40) with a first contact surface beside the film hinge, which in the fully assembled state is in contact with a second contact surface of the other section.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: March 20, 2012
    Assignee: Autoliv Development AB
    Inventors: Arno Kardel, Knut Janzen
  • Patent number: 8136834
    Abstract: The invention relates to a motor vehicle seat (1) having an upholstered component (3) which is covered by flexible covering (4), and a safety device which is arranged in the upholstered component (3) and has an airbag (5) which is coupled to a gas generator (6). The gas generator (6) is activated when sensor data relating to an accident or an imminent accident are present to inflate the airbag (5) with gas and unfold the airbag. An activator (8) is provided by means of which the airbag (5) or separate gas cushion (7) can be additionally repeatedly inflated with gas in a reversible fashion. The covering (4) is of an inelastic design, at least in certain areas, and has an elastic section (9) which is arranged in the covering (4).
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: March 20, 2012
    Assignee: Autoliv Development AB
    Inventors: Rikard Fredriksson, Ralf Zauritz, Frederic Charpentier
  • Patent number: 8136841
    Abstract: A button of a shoulder position adjuster device is provided including an outer surface portion which, at a normal state, is generally continuous with an outer surface of a cover facing an inner space of a passenger compartment. Flexible left and right outer lateral walls are formed continuously with the outer surface portion and have lock portions which are locked on to a side member at the normal state and which are released from the locked state at the time of a pulling operation. Additionally, a pair of connecting walls are provided which extend from the outer surface portion towards a guide rail side in the left and right outer lateral walls and connect the latch pin.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: March 20, 2012
    Assignee: Autoliv Development AB
    Inventors: Masaki Omiya, Kiyoshi Ogawa, Atsushi Tsuha
  • Patent number: 8128123
    Abstract: An inflator for an airbag comprises a bottle (2) containing a pressurized oxidizable gas and a bottle (4) containing a pressurized oxidizing gas, the bottles being connected with a structure (12, 16) providing a chamber (14) that has an outlet, for example provided by a conduit (16), for connection with a vehicle airbag. The bottles have respective first discharge openings (18) and further discharge openings (18a) sealed by respective sealing foils. The inflator includes a first pyrotechnic squib (22) which when fired causes the sealing foils over the first openings (18) to rupture to allow the gases from bottles (2, 4) to pass into chamber (14) and then into the airbag, and also includes a further pyrotechnic squib (22a) which is fired some time after the squib (22) and causes the sealing foils over the further openings (18a) to boost the discharge of gases from the gas bottles.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: March 6, 2012
    Assignee: Autoliv Development AB
    Inventors: Mats Bo Ivar Johanson, Björn Svärd