US 12,188,535 B2
Systems and methods for monitoring a wear state of a disc brake
Jason Kramer, Cullman, AL (US)
Assigned to Webb Wheel Products, Inc., Cullman, AL (US)
Filed by Webb Wheel Products, Inc., Cullman, AL (US)
Filed on Sep. 1, 2023, as Appl. No. 18/460,281.
Application 18/460,281 is a continuation of application No. 17/245,429, filed on Apr. 30, 2021, granted, now 11,788,594.
Prior Publication US 2023/0417301 A1, Dec. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F16D 66/02 (2006.01); B60T 17/22 (2006.01)
CPC F16D 66/027 (2013.01) [B60T 17/22 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A system for monitoring a wear state of a disc brake for braking a rotor of a vehicle, the disc brake having a caliper configured to clamp opposing inner and outer brake pads onto the rotor, the system comprising:
a primary wear sensor configured to sense a combined thickness of the rotor, the inner brake pad, and the outer brake pad, and
a controller configured to calculate an estimated wear amount of the inner brake pad and an estimated wear amount of the outer brake pad based upon said combined thickness of the rotor, the inner brake pad, and the outer brake pad sensed by the primary wear sensor,
wherein the controller is further configured to calculate an estimated rotor wear amount based upon (A) said combined thickness of the rotor, the inner brake pad, and the outer brake pad sensed by the primary wear sensor, and (B) a predetermined pad-to-rotor life ratio.