US 9,809,194 B2
Vehicle safety system
Moroine Laoufi, Asnieres-sur-seine (FR); Alessandro Zin, Saint Oven l'Aumône (FR); Peter Harda, Torslanda (SE); Pär Nilsson, Mölndal (SE); Anders Axelsson, Torslanda (SE); and Anders Wogel, Harrington Park, NJ (US)
Assigned to Autoliv Development AB, Vargarda (SE); and Volvo Car Corporation, Gothenburg (SE)
Appl. No. 14/129,311
Filed by Moroine Laoufi, Asnieres-sur-seine (FR); Alessandro Zin, Saint Oven l'Aumône (FR); Peter Harda, Torslanda (SE); Pär Nilsson, Mölndal (SE); Anders Axelsson, Torslanda (SE); and Anders Wogel, Harrington Park, NJ (US)
PCT Filed Jun. 25, 2012, PCT No. PCT/SE2012/050708
§ 371(c)(1), (2), (4) Date May 19, 2014,
PCT Pub. No. WO2013/006127, PCT Pub. Date Jan. 10, 2013.
Claims priority of application No. 11172573 (EP), filed on Jul. 4, 2011.
Prior Publication US 2014/0324296 A1, Oct. 30, 2014
Int. Cl. B60R 22/48 (2006.01); B60R 21/01 (2006.01); B60R 21/00 (2006.01); B60R 21/0132 (2006.01)
CPC B60R 22/48 (2013.01) [B60R 21/01 (2013.01); B60R 2021/0013 (2013.01); B60R 2021/01325 (2013.01); B60R 2022/4808 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A safety system for a motor vehicle having at least a front wheel arrangement having one or more wheels and a rear wheel arrangement having one or more wheels, the system comprising:
a control unit;
one or more vehicle inertial sensors to detect acceleration experienced by the vehicle, the one or more vehicle inertial sensors being connected to the control unit so the control unit receives output signals from the one or more vehicle inertial sensors; and
one or more vehicle safety systems which may be activated by the control unit,
wherein the control unit is configured to process the output signals received from the one or more vehicle inertial sensors and to determine whether at least one of the wheels of the front and the rear wheel arrangements is not in contact with the surface over which the vehicle is driven;
wherein the one or more vehicle inertial sensors include a longitudinal acceleration sensor and a vertical acceleration sensor and the control unit makes a determination that one or more of the wheels of the front and the rear wheel arrangements is not in contact with the surface if a vertical acceleration of the vehicle exceeds a predetermined vertical acceleration threshold of the vehicle and a longitudinal acceleration of the vehicle is below a predetermined longitudinal acceleration threshold.