Systems and methods for measuring brake wear
AssigneeGoodrich Corporation
InventorsMichael Kordik, Clifton Randolph Boggs
Life of this patent
Estimating the term…
Abstract
A system for determining brake wear based on hydraulic fluid volume may comprise a brake actuator and a fluid supply line fluidly coupled to the brake actuator. The brake actuator may include a brake ram configured to translate in response to changes in fluid pressure in the brake actuator. A piston may be fluidly coupled between a first portion of the fluid supply line and a second portion of the fluid supply line. The piston may include a cylinder and a ram configured to translate within the cylinder. A first sensor may be operably coupled to the piston.
Claims18
A system for determining brake wear based on fluid volume, comprising:
- a brake actuator including a brake ram configured to translate in response to changes in fluid pressure in the brake actuator;
- a fluid supply line fluidly coupled to the brake actuator;
- a piston fluidly coupled between a first portion of the fluid supply line and a second portion of the fluid supply line, the piston including a cylinder and a ram configured to translate within the cylinder;
- a first sensor operably coupled to the piston;
- a brake servo valve upstream of the piston;
- and
- a shuttle valve coupled between the piston and the brake actuator.
A multi-disk brake assembly, comprising:
- a plurality of friction disks;
- a brake actuator configured to translate relative to the plurality of friction disks;
- a fluid supply line fluidly coupled to the brake actuator;
- a piston fluidly coupled between a first portion of the fluid supply line and a second portion of the fluid supply line, the piston including a cylinder and a ram configured to translate within the cylinder;
- a first sensor operably coupled to the piston;
- a fluid reservoir fluidly coupled to the first portion of the fluid supply line;
- a brake servo valve coupled between the piston and the fluid reservoir;
- and
- a shuttle valve coupled between the piston and the brake actuator.
A method of making a system for determining brake wear based on fluid volume, the method comprising:
- fluidly coupling a fluid supply line to a brake actuator configured to translate relative to a brake stack;
- coupling a piston between a first portion of the fluid supply line and a second portion of the fluid supply line;
- coupling the first portion of the fluid supply line to a brake servo valve;
- coupling a shuttle valve between the second portion of the fluid supply line and the brake actuator;
- and
- operably coupling a first sensor to the piston.
Dependencies are inferred from the claim text.