US 11,885,386 B2
Vehicle brake pad and a production process thereof
Stefano Serra, San Pietro Val Lemina (IT); Umberto Vignolo, Barge (IT); and Marco Terranova, Turin (IT)
Assigned to ITT ITALIA S.R.L., Barge (IT)
Filed by ITT Italia S.r.l., Barge (IT)
Filed on Nov. 8, 2022, as Appl. No. 17/983,267.
Application 17/983,267 is a continuation of application No. 17/013,328, filed on Sep. 4, 2020, granted, now 11,519,475.
Claims priority of application No. 102019000015839 (IT), filed on Sep. 6, 2019.
Prior Publication US 2023/0175567 A1, Jun. 8, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F16D 66/00 (2006.01); F16D 65/092 (2006.01); G01L 1/16 (2006.01); H05K 3/12 (2006.01)
CPC F16D 66/00 (2013.01) [F16D 65/092 (2013.01); G01L 1/16 (2013.01); H05K 3/1216 (2013.01); F16D 2066/005 (2013.01); F16D 2200/0004 (2013.01); F16D 2250/0038 (2013.01); F16D 2250/0061 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A brake pad comprising:
a backplate;
a friction pad; and
a force sensor between the backplate and the friction pad and configured to detect a force applied to the brake pad, the force sensor comprising:
a sheet of piezoelectric material having a first face and a second face that is opposite the first face;
a first electrode located on the first face of the sheet of piezoelectrical material; and
a second electrode located on the second face of the sheet of piezoelectrical material, wherein the sheet of piezoelectric material is configured to be bulk polarized in-situ.