US 11,865,863 B2
Sensorized hub bearing unit for vehicles
Mathieu Hubert, Ann Arbor, MI (US); and Alessandro Garrone, Pino Torinese (IT)
Assigned to AKTIEBOLAGET SKF
Filed by AKTIEBOLAGET SKF, Gothenburg (SE)
Filed on Jul. 8, 2022, as Appl. No. 17/860,763.
Claims priority of application No. 102021000018638 (IT), filed on Jul. 15, 2021.
Prior Publication US 2023/0016206 A1, Jan. 19, 2023
Int. Cl. B60B 27/00 (2006.01); F16C 19/52 (2006.01); G01L 5/00 (2006.01)
CPC B60B 27/0068 (2013.01) [F16C 19/522 (2013.01); G01L 5/0019 (2013.01); F16C 2233/00 (2013.01); F16C 2326/02 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A sensorized hub bearing unit, comprising:
a rolling bearing comprising:
a stationary ring comprising:
a first annular element; and
a second annular element coupled to and arranged coaxial with the first annular element, the second annular element comprising:
a plurality of axial spaces angularly spaced from one another and positioned at an interface between the first annular element and the second annular element, and
an annular groove;
a rotating ring mounted coaxially and concentrically with the stationary ring;
a plurality of rolling elements interposed between the rotating ring and the stationary ring; and
a plurality of sensors for detecting mechanical stresses, each pair of sensors being housed within a respective axial space of the plurality of axial spaces; and
an annular band disposed within the annular groove of the second annular element,
wherein the first annular element is integrally fitted axially within the second annular element, and
each sensor of the plurality of pairs of sensors is electrically connected to one another by the annular band.
 
13. A sensorized hub bearing unit, comprising:
a rolling bearing comprising:
a stationary ring comprising:
a first annular element; and
a second annular element coupled to and arranged coaxial with the first annular element, the second annular element comprising:
a plurality of axial spaces angularly spaced from one another and positioned at an interface between the first annular element and the second annular element, each axial space comprising two axial ends that are circumferentially enlarged relative to remaining portions of each axial space; and
an annular groove;
a rotating ring mounted coaxially and concentrically with the stationary ring;
a plurality of pairs of sensors for detecting mechanical stresses fixed integrally with a radially outer surface of the second annular element;
at least one chamber defined by each axial space and an outer lateral surface of the first annular element and positioned at the interface between the first annular element and the second annular element, and
an annular band disposed within the annular groove of the second annular element,
wherein, each pair of sensors is housed within a respective axial space of the plurality of axial spaces and arranged at a respective annular track formed on a radially inner lateral surface of the second annular element,
each sensor of each pair of sensors is housed within a respective axial end of each axial space,
the first annular element is integrally fitted axially within the second annular element, and
each sensor of the plurality of pairs of sensors are electrically connected by the annular band.