A method that includes winding a composite fabric around a mandrel to form a plurality of layers defining an annulus extending along a central longitudinal axis, where the composite fabric includes a plurality of elongate axial fibers extending substantially in an axial direction relative to the longitudinal axis and a plurality of elongate circumferential fibers extending substantially in a circumferential direction relative to the longitudinal axis; and introducing, into at least a portion of the plurality of layers, a plurality of radial fibers extending substantially in the radial direction relative to the longitudinal axis, where the plurality of radial fibers mechanically bind one or more adjacent layers of the plurality of layers.

The invention concerns a brake drum for a drum brake of a motor vehicle, the brake drum having: a ring section extending concentrically about a rotation axis; and a circular wall section extending at an angle to the rotation axis; wherein in the brake drum has at least one portion that deviates from at least one of: a) a rotation symmetric configuration of the brake drum with respect to the rotation axis; b) a material comprised by at least one other portion of the brake drum.

An automatic transmission includes a clutch device having a clutch hub, a clutch drum, a friction plate, a piston, and a hydraulic chamber. The clutch drum includes an outer-side cylindrical portion, a disc-shaped first radial portion extending radially inwardly, an axial portion extending axially from the first radial portion, and a disc-shaped second radial portion extending radially inwardly from the axial portion. The piston includes a pressing portion disposed between the first radial portion and the friction plate side, and a disc-shaped piston radial portion extending radially inwardly from the pressing portion. The hydraulic chamber is provided radially inwardly from the axial portion and on the non-friction-plate side of the piston radial portion. A comb-teeth portion is provided at a radially intermediate portion of the piston radial portion. The axial portion and the piston radial portion intersect with each other in a comb-teeth shape.

Coupling members to join two rotary members are described. The coupling members (300) include a unitary body having a first coupling element (302), a second coupling element (304), and a hub (306), wherein the unitary body forms a single piece with the hub (306) extending between and connecting the first coupling element (302) to the second coupling element (304). The first coupling element (302) defines a first plane, the second coupling element (304) defines a second plane with the first and second planes being parallel, and the hub (306) defines a hub axis normal to the first and second planes. Each of the first and second coupling elements (302, 304) comprises a plurality of connection elements (308, 310) arranged about a respective circumference having a respective radius extending from the hub axis, wherein a material of the respective coupling element in a respective circle and in a respective plane is less than the area of the circle. The material forming the first and second coupling elements (302, 304) is arranged in a respective circumscribing circle over an area less than the total area defined by the circle in the respective plane.

The disclosure relates to a frictional brake element for a friction brake of a motor vehicle, in particular brake disk, having a main element which is manufactured in particular from grey cast iron and which has at least one wear protection layer applied to the main element and at least one intermediate layer situated between the wear protection layer and the main element. It is provided that the intermediate layer is a metallic intermediate layer applied by laser deposition welding.

The disclosure relates to a friction brake body for a friction brake of a motor vehicle, in particular a brake disc, wherein the friction brake body comprises a base body made from gray cast iron, and at least one wear resistant layer formed at least in areas on the base body. The wear resistant layer is a laser alloyed or laser dispersed edge layer of the base body and comprises at least one additive.

A bracket for a brake assembly and a brake actuator includes a unitary body including a tube configured to receive a camshaft of the brake assembly and an actuator mounting arm disposed proximate a first end of the tube and configured to receive the brake actuator. In some embodiments, the tube includes one or more helical ribs formed on a radially inner surface. The bracket further includes either a brake spider or a brake spider mounting flange disposed proximate a second end of the tube. In either embodiment, material may be omitted in various locations to reduce the weight of the bracket. The bracket may be formed through an additive manufacturing process and in a manner that achieve at least one of a predetermined torsional stiffness and attenuation of a predetermined natural frequency.

Woodruff key coupling systems for torque transmission are provided. An example Woodruff key system includes a rotatable shaft having a keyseat defined therein. The keyseat includes a pocket engaged with the Woodruff key, a first keyseat extension extending in a first axial direction from the Woodruff key relative to the shaft, and a second keyseat extension extending in a second axial direction opposite the first axial direction from the Woodruff key relative to the shaft. Respective depths of the first and second keyseat extensions are less than a depth of the pocket of the keyseat.

An apparatus comprising an interface, a memory and a processor. The interface may be configured to receive sensor data samples during operation of a vehicle. The memory may be configured to store the sensor data samples over a number of points in time. The processor may be configured to analyze the sensor data samples stored in the memory to detect a pattern. The processor may be configured to manage an application of brakes of the vehicle in response to the pattern.

A hybrid torque bar for a brake assembly may comprise a base portion, a pin extending from a first end of the base portion, and a rail extending between the first end of the base portion and a second end of the base portion opposite the first end. The base portion may be formed using a first manufacturing process. At least one of the pin or the rail may be formed using a second manufacturing process. The second manufacturing process may comprise an additive manufacturing technique.