US 11,754,135 B2
Methods and apparatus to dynamically determine brake pad wear
Yun Xing, Canton, MI (US); and John Erik Mikael Hellstrom, Ann Arbor, MI (US)
Assigned to Ford Global Technologies, LLC, Dearborn, MI (US)
Filed by Ford Global Technologies, LLC, Dearborn, MI (US)
Filed on Feb. 17, 2021, as Appl. No. 17/177,907.
Prior Publication US 2022/0260127 A1, Aug. 18, 2022
Int. Cl. F16D 66/02 (2006.01); B60T 17/22 (2006.01); F16D 121/04 (2012.01)
CPC F16D 66/023 (2013.01) [B60T 17/225 (2013.01); F16D 2121/04 (2013.01); F16D 2300/18 (2013.01); F16D 2300/20 (2021.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
at least one memory device; and
at least one processor to execute instructions to, in response to an anti-lock braking event:
determine a volume of brake fluid in a brake piston chamber based on a relationship between the volume, a flow rate of the brake fluid, and a pressure within the brake piston chamber; and
determine at least one of a thickness of a brake pad or a wear of the brake pad based on the volume of the brake fluid in the brake piston chamber and a volume of the brake piston chamber.