Patent application number | Description | Published |
20090055065 | Active Brake Pulsation Control - A brake system is provided for minimizing brake pulsation feedback caused by surface variations of a brake system corner component. The brake system includes at least one sensing device configured to measure a pressure pulse caused by the surface variation of a brake system corner component. A controller module is in communication with the at least one sensing device and a hydraulic brake circuit. The controller module is configured to receive an output from the at least one sensing device and to adjust line pressure in the hydraulic brake circuit to substantially minimize brake pulsation feedback. | 02-26-2009 |
20090071779 | DAMPED PART WITH INSERT - One embodiment of the invention may include a product including a body portion including a first face and a frictional damping insert overlying the first face of the body portion. The body portion may include a second face overlying the insert. The insert may have a throughhole and a portion of the body portion may extend from the first face through the throughhole and the insert to the second face of the body portion. | 03-19-2009 |
20090240414 | BRAKE NOISE SUPPRESSION VIA SYSTEM PRESSURE MODULATION - A method of brake noise suppression via brake system pressure modulation is disclosed that includes detecting a brake apply and modulating a brake system pressure to disrupt formation of a friction instability upon detection of the brake apply. The brake system pressure can be modulated at each brake apply detected, only when the brake apply detected is of a brake apply type that is indicative of brake noise, or when the system actually detects brake noise. Further, the system can determine whether a brake apply is associated with a noise-inducing friction instability; and modulate the brake system pressure to disrupt formation of the noise-inducting friction instability by hindering development of the limit cycle associated with the noise-inducing friction instability. | 09-24-2009 |
20090266653 | Disk Brake Friction Surfaces with Tunable Indent Patterns for Minimizing Brake Pad Radial Taper Wear - A brake rotor providing reduced brake pad radial taper wear by providing brake rotor friction surface indent patterns. For example, the indent patterns are the form of radial-biased grooves or linearly arranged cross-drill hole sets, patterned in a configuration that balances brake pad wear, thereby reducing brake pad radial taper wear in a manner tuned specifically for a given type of brake caliper and brake pad material, wherein the reduction in brake pad radial taper wear is accomplished with virtually no penalty to brake pad life. | 10-29-2009 |
20100018819 | FRICTION DAMPED BRAKE DRUM - A friction damped brake drum for reducing vibrations in a brake drum. | 01-28-2010 |
20100140033 | COMPONENT WITH INLAY FOR DAMPING VIBRATIONS - An exemplary embodiment includes an automotive brake component, such as a brake drum or a brake rotor, and an inlay coupled to the automotive brake component. The inlay constituting at least a portion of a braking surface that is acted upon during a braking event. The inlay damping vibrations in the automotive brake component when the component is vibrated. | 06-10-2010 |
20100147634 | BRAKE CALIPER WITH REDUCED BRAKE SQUEAL - An exemplary embodiment of a brake caliper has a housing with a first chamber and a second chamber. The brake caliper also has a first piston that moves in response to fluid pressure in the first chamber and has a second piston that moves in response to fluid pressure in the second chamber. A brake pad has a leading end portion that is acted upon by the first piston and has a trailing end portion that is acted upon by the second piston. A fluid passage leads to the first chamber. The trailing end portion contacts an associated rotor before the leading end portion contacts the rotor. | 06-17-2010 |
20100206674 | Disc Brake Rotors with Tilted Vane Geometry - A tilted vane brake rotor. The tilted vanes are tilted in the sense of being oriented with respect to the inside disc surfaces at other than 90 degrees, defined by an acute intersection angle with respect to either of the inside disc surfaces. The tilted vanes may be, for example, paired and oriented serially around the circumference of the rotor discs so as to provide a series of vane pairs in the form of: a series of alternately inverted V-shapes, a series of same oriented V-shapes, or a series of X-shapes. | 08-19-2010 |
20110127124 | Coulomb Friction Damped Disc Brake Caliper Bracket - A Coulomb friction damped disc brake caliper bracket, wherein damping is provided by Coulomb friction, most preferably at the outboard tie-bar thereof, by a Coulomb bar peripherally welded thereto. An inner surface of the Coulomb friction bar is in abutting contact with the external surface of the tie-bar, whereby because of the continuous peripheral edge welding, corrosion cannot find entry into the interface of the two surfaces, yet the two surfaces form are free to vibrate one as to the other in Coulomb friction fashion to thereby provide damping and reduction of brake squeal and other noise. | 06-02-2011 |
20110198169 | BI-METAL DISC BRAKE ROTOR AND METHOD OF MANUFACTURING - The invention provides a method for manufacturing a friction damped disc brake rotor, including the steps of: (A) providing a ceramic coating on an insert, wherein the insert has a body with tabs extending therefrom to hold the insert in a desired position within a mold; (B) washing the ceramic coating off of the tabs; (C) positioning the insert into the mold; and (D) casting a rotor cheek of the disc brake rotor in the mold around the insert such that a portion of each tab is bonded with the rotor cheek, and such that the coating is substantially non-bonded with the rotor cheek so that the coating provides a proper interfacial boundary between the body and the cheek for damping, and the at least partial bonding of each tab with the rotor cheek prevents corrosion-causing exterior elements from reaching the interfacial boundary when the friction damped disc brake rotor is in use. | 08-18-2011 |
20110297491 | BRAKE ASSEMBLY - A brake assembly includes a brake pad, a bracket supporting the brake pad and having a first portion, a second portion spaced apart from the first portion, and a linkage interconnecting the first and second portions. The linkage is configured to transfer tensile loads between the first and second portion, but is characterized by the absence of any bending modes. The absence of bending modes prevents excitation of the linkage, thereby reducing sound generated during application of the brake assembly. | 12-08-2011 |
20130112514 | LIGHT-WEIGHT AND SOUND-DAMPED BRAKE ROTOR AND METHOD OF MANUFACTURING THE SAME - A light-weight and sound-damped brake rotor for a vehicle braking system includes a rotor hat and a rotor cheek supported by the rotor hat. The rotor hat includes an axially-protruding central hub and a flange that extends radially from and circumferentially around the central hub. The rotor cheek, which provides at least one braking surface, is formed from two or more separate and distinct pieces which are fixedly secured to the flange of the rotor hat. Located within the rotor cheek underneath the at least one braking surface is a vibration damping element. The brake rotor derives its vibration-deadening and sound-damping effects from the vibration damping element through the occurrence of relative frictional contacting movement. | 05-09-2013 |
20130256069 | BRAKE ASSEMBLY - A brake assembly includes a brake pad, a bracket supporting the brake pad and having a first portion, a second portion spaced apart from the first portion, and a linkage interconnecting the first and second portions. The linkage is configured to transfer tensile loads between the first and second portion, but is characterized by the absence of any bending modes. The absence of bending modes prevents excitation of the linkage, thereby reducing sound generated during application of the brake assembly. | 10-03-2013 |