Arvin Meritor Technology, LLC

Meritor Heavy Vehicle Systems Limited

Meritor Heavy Vehicle Technology, LLC

Joseph A Kay

Dennis A Kramer

Christopher S Keeney

Roy Lee Hayford

James R Brichta

Frederick A Jelley

Dennis G O'Reilly

Jaeho Kwak

Daniel J Philpott

Fabio Santinato

Pradeep D Mirji

Thomas Michael Cory

Vishwanath Ramachandra

Kurt Heydenburg

Kenneth G Hooper

James Brichta

Dennis O'Reilly

Frederick Jelley

A method of controlling a brake system of a vehicle. The method may include determining whether an environmental brake pad wear condition is detected that may be indicative of wear of a friction material of a brake pad assembly due to an environmental contaminant.

Method of controlling a brake system of a vehicle

A slack adjuster comprises a worm shaft that is configured to drive a worm gear adapted for coupling to a camshaft. An adjustment assembly receives slack adjustment input from a push rod and is configured to automatically rotate the worm shaft when brake slack exceeds a predetermined limit. The slack adjuster includes a manual adjuster that is moveable between a non-adjustment position where the manual adjuster is de-coupled from the worm shaft and a manual adjustment position where the manual adjuster is coupled to the worm shaft such that a position of the worm shaft can be manually adjusted as needed.

Manual adjuster for automatic slack adjuster

A brake slack adjuster is provided that includes a housing having an opening with a gear arranged within the opening. The housing includes a bore adjacent to the opening. A worm gear has an axis disposed within the bore and is an engagement with the gear. The worm gear has an end portion with helical teeth. An actuator loosely is arranged within the bore and includes an inner surface with complementary helical teeth engaging the helical teeth of the worm gear. An actuator rod includes an end arranged within the actuator aperture. The rod end is captured in the actuator by a retainer. A pawl assembly is supported by the housing and coacts with the actuator for retaining the actuator in a rotational position relative to the axis. Biasing members are arranged between the actuator and housing bore to urge the actuator engagement with the worm gear end portion. The actuator includes an elongated slot with and end of the pawl assembly captured with in the elongated slot to prevent rotational movement of the actuator relative to the housing. The elongated slot permits movement of the actuator in the direction of the axis.

Brake slack adjuster

A self-energized disk brake assembly includes gain stabilization features for controlling the multiplication of applied force against a rotatable brake member. The brake assembly includes a first brake pad supported about a first pivot and a second brake pad supported about a second pivot. An actuator applies a force to drive the brake pads into the rotatable brake member. Frictional force between the brake pads and the rotatable brake member pulls the brake pads into further engagement generating an increase in braking force from self-energization. A position of the first and second pivots is adjustable to control the amount of braking force generated from self-energization.

Gain stabilizing self-energized brake mechanism

A brake assembly has a caliper with a first brake pad and a second brake pad. The first brake pad is moveable relative to the caliper. A brake actuator moves the first brake pad and has a first threaded member and a second threaded member. The first threaded member has first thread characteristics for moving the brake actuator at a first speed and a first force. The second threaded member has a second thread characteristics for moving the brake actuator at a second speed and a second force. The first speed is greater than the second speed while the first force is lower than the second force.

Multiple ball screw assembly with differing pitch used to optimize force and displacement of brake actuator

A system continuously lubricates critical areas, such as bushings and seals, in a cam brake shaft. A fresh source of lubrication is provided at a generally constant pressure. This is accomplished using a centrally located spring and an adjacent pair of axially sliding inboard seals that apply a continuous pressure to strategically disposed lubricating fluid between each of a pair of main seals at each end of the tubular cam housing and a respective inboard seal positioned at an end of the centrally located spring.

Continuous lubricating system

Shoe and lining assemblies for use in disc brakes are disclosed that have centroids of the backing plate halves which are very close to the centroids of the actuator pistons. In this way, the forces from the pistons are evenly distributed across the backing plate surface area to result in better braking operation.

Disc brake backing plates

A disc brake includes inventive backing plates. The backing plate includes tabs located at each end with a spring supported on a top edge of the backing plate between the tabs. The spring maintains the brake pad assemblies in proper orientation with respect to the disc and reduce the amount of noise created by the brake pad assembly components while the vehicle is in operation.

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Highland, MI, United States of America

Joseph A Kay