Karen F Sieradski

US Patent:

20140020992, Jan 23, 2014

Filed:

Jul 17, 2012

Appl. No.:

13/550664

Inventors:

Karen F. Sieradski - Shelby Township MI, US
Tomasz Warzecha - Sterling Heights MI, US
Collin R. Lockhart - Waterford MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

B60T 1/06
F16D 55/225

US Classification:

188 724

Abstract:

A braking system for retarding rotation of a wheel includes a rotor having two opposing rotor sides, wherein the rotor is coupled to the wheel. The braking system also includes a knuckle rotatably coupled to the rotor, a caliper disposed relative to the knuckle, and first and second friction pads. Each friction pad is positioned relative to one of the rotor sides. The friction pads are housed within the caliper, which includes a hydraulic piston positioned to engage one of the friction pads. Movement of the hydraulic piston engages the friction pads with the respective rotor sides to retard the wheel. The braking system also includes a spacer disposed between the caliper and the knuckle and a fastener that fixes the caliper and the spacer to the knuckle. The spacer generates a wedging effect between the caliper and the knuckle when the rotation of the wheel is being retarded.

US Patent:

20130291356, Nov 7, 2013

Filed:

May 3, 2012

Appl. No.:

13/462879

Inventors:

Robbie D. Cannon - Clio MI, US
Karen F. Sieradski - Shelby Township MI, US
Cheryl A. Garrison - Shelby Township MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

B23P 6/00

US Classification:

2940201

Abstract:

A method of tensioning park cables of a park brake system includes positioning a tension indicating device between an adjuster and an adjusting nut when the park brake system is disposed in a slack position. The tension indicating device includes an axial spacing length between the adjuster and the adjusting nut that is equal to a desired adjustment distance of the park cables when the park brake system is disposed in the slack position. The adjusting nut is then tightened until the tension indicating device indicates that the park cables include a tension equal to a target tension level of the park cables when the park brake system is disposed in an applied position. The tension indicating device is then removed from between the adjuster and the adjusting nut, thereby introducing slack into the park cables that is equal to the axial length of the tension indicating device.