Systems and methods for monitoring a wear state of a disc brake
AssigneeWebb Wheel Products, Inc.
InventorJason Kramer
Life of this patent
Estimating the term…
Abstract
Systems and methods are for monitoring a wear state of a disc brake for braking a rotor of a vehicle. The disc brake has a caliper configured to clamp opposing inner and outer brake pads onto the rotor. A primary wear sensor is configured to sense a combined thickness of the rotor, the inner brake pad, and the outer brake pad. A controller is programmed to calculate an estimated wear amount of the inner brake pad and an estimated wear amount of the outer brake pad based upon the combined thickness. In some embodiments a secondary wear sensor is included and the system is configured to calculate an actual wear amount of the inner brake pad and an actual wear amount of the outer brake pad based upon input from the primary wear sensor and the secondary wear sensor.
Claims16
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.
A method for monitoring a wear state of a disc brake for braking a rotor of a vehicle, the disc brake comprising having a caliper configured to clamp opposing inner and outer brake pads onto the rotor, the method comprising
- calculating via a controller an estimated wear amount of the inner brake pad and an estimated wear amount of the outer brake pad based upon a combined thickness of the rotor, the inner brake pad, and the outer brake pad, as sensed by a primary wear sensor, and
- calculating 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.
Dependencies are inferred from the claim text.