75results about "Noise/vibration control" patented technology

The invention relates to a brake module (100) for a vehicle flap drive system with at least one first friction partner (130) and at least one second friction partner (160, 170), wherein the friction partners (130, 160, 170) each have at least one friction surface (140, 150, 180, 190) which rub against one another during braking operation, wherein the first friction partner (130) is formed in one piece from a plastic with a carbon fiber content.The invention further relates to a vehicle flap drive system comprising a brake module (100).

The present disclosure relates to a mounting assembly (32) for securing a component of a vehicle brake system to a vehicle structure. The mounting assembly (32) comprises a mounting portion (40) of the vehicle structure having a through-hole (42), a mounting element (44) of the vehicle brake system having a through-hole (46), and a bolt (48) extending through both through-holes (42, 46). Furthermore, a nut (52) engages the bolt (48) such that the mounting portion (40) is attached to the mounting element (44) via the bolt (48) and the nut (52). Moreover, an elastic bushing (54) has a first bushing collar (58) extending from a bushing body (56) in a radial direction. The first bushing collar (58) also extends on a first axial side of the corresponding mounting portion (40) or mounting element (44). Furthermore, a vehicle comprising such a mounting assembly (32) and a vehicle brake system is presented. The component of the vehicle brake system is secured to the structure of the vehicle via the mounting assembly (32).

The invention discloses an anti-deformation thick-wall pig iron brake disc, and relates to the technical field of pig iron brake discs, the anti-deformation thick-wall pig iron brake disc comprises a hub, a disc body is fixedly connected to the circumferential surface of the hub, mounting sleeves are arranged on the circumferential surface of the disc body, a bolt penetrates through the mounting sleeves, and a pushing piston is arranged in each mounting sleeve; a brake block is fixedly connected to the end, away from the mounting sleeve, of the pushing piston, a brake expansion mechanism is arranged in the mounting sleeve and comprises a mounting groove, the mounting groove is formed in the brake block, and a pushing block is slidably connected into the mounting groove. Through mutual cooperation of the expansion brake block, the pushing block and the linkage assembly of the brake expansion mechanism, the effective friction contact area is dynamically increased in the braking process, heat generated by friction is more evenly dispersed on the disc face, the local peak temperature and thermal stress are remarkably reduced, and the braking efficiency is improved. And the buckling deformation of the brake disc caused by heat concentration is inhibited from the source.

Friction unit (100) for a disc brake (300) of a vehicle, comprising: a support plate (1); and a friction lining (2) with a friction material layer (21) having a contact surface (21a) for contacting a disc (310) and a backing layer (22) having an inner surface (22a) oriented opposite to the contact surface (21a) and connected to the carrier plate (1), wherein the underlay layer (22) has at least one slot (3) which is formed in the inner surface (22a) and forms a cavity, wherein the underlay layer (22) has a predetermined thickness (t22), and wherein the at least one slot (3) has a depth (d3) which is less than the thickness (t22) of the underlay layer (22).

An electric-parking-brake-actuator electrical connector (10) which electrically connects a motor (42) of an electric-parking-brake actuator (40) to an electrical power supply (50). The electric-parking-brake-actuator electrical connector includes a first connection portion (12), a second connection portion (14) and an electrical conductor body (16) 5 connecting the first connection portion (12) with the second connection portion (14). The electrical conductor body (16) defines a path which extends in three spatial dimensions and is resiliently flexible.

The invention relates to a magnetorheological brake (1), comprising: a rotor (3) which is provided so as to be rotatable about an axis (18); a mechanical interface (6) which is provided so as to be rotatable about the axis (18); and a securing portion (7) via which the rotor (3) is rotationally fixed to the mechanical interface (6), wherein the rotor (3) has a first rotor part (3.1) and a second rotor part (3.2), wherein the first rotor part (3.1) is designed to receive a braking effect and the second rotor part (3.2) is designed to damp the braking effect before transmission via the securing portion (7) to the mechanical interface (6). The invention also relates to a force feedback actuator (50), a steering device (100), a rotor (3), and a method.

A brake drum for a drum brake of a motor vehicle, the brake drum having:a ring section extending concentrically about a rotation axis; anda 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.

The invention aims to provide a brake disc fastening connection kit which is used for connecting a disc body and a disc hub of a brake disc, and relates to the technical field of train brake systems, the brake disc fastening connection kit comprises a bolt, a first bolt sleeve, a second bolt sleeve and a nut, the bolt sequentially penetrates through the first bolt sleeve, the disc hub, the disc body, the second bolt sleeve and the nut, and the first bolt sleeve is connected with the second bolt sleeve. The bolt is in threaded fit with the nut, the first bolt sleeve, the disc hub, the disc body, the second bolt sleeve and the nut are fixedly connected together, the supporting face of a bolt head of the bolt is in spherical fit with the first bolt sleeve, and the supporting face of the second bolt sleeve is in spherical fit with the supporting face of the nut. According to the brake disc fastening connection kit, the bending load of the bolt can be eliminated, the impact load of the bolt is reduced, the thermal stress of the brake disc is released, and therefore the fatigue life of the bolt is prolonged.

The invention relates to a disc brake for a rail vehicle, comprising a brake pad (1) and a brake disc (D) on which the brake pad (1) acts; said brake pad (1) comprising a base plate (2) and a plurality of friction elements (4) fixed to said base plate (2); said friction elements (4) comprising first friction elements (4b) made of a first material and second friction elements (4a) made of a second material; said disc brake being characterized in that the compression modulus (pressure required to compress the material by 1 mm) of said second material is less than the compression modulus of said first material by a value of more than 5 MPa; the number of said first friction elements (4b) being greater than the number of said second friction elements (4a).

To realize a floating type disc brake device that can prevent surface pressure between an outer body portion of a caliper body and an abutting portion of an outer pad from locally increasing in a diametrically outside portion of the outer pad.SOLUTION: A floating type disc brake device is equipped with an inner pad, an outer pad 5, a support, and a caliper body 3. A bulging portion 32 is provided on almost the entire part axially opposing to a substrate portion 49b of the outer pad 5 of an outer body portion 21 configuring the caliper body 3. On an axially inside surface of the bulging portion 32, an abutting projecting portion 33 is formed, in which an area of a part axially opposing to a diametrically inside half portion of the substrate portion 49b is larger than an area of a part axially opposing to a diametrically outside half portion of the substrate portion 49b. At braking, only tip end surface of the abutting projecting portion 33 abuts on the axially outside surface of the substrate portion 49b.SELECTED DRAWING: Figure 17

A brake assembly for a heavy commercial vehicle comprising a caliper (102) and a first guide bore (122a), a brake carrier (101) arranged to receive a brake pad; a first guide pin (126a) secured to the brake carrier, the first guide pin being received within the first guide bore (122a) of the caliper such that the caliper is slideable relative to the brake carrier, and a first lock arrangement (242) at least partially located within the first guide bore. The first lock arrangement is operable to selectively inhibit relative sliding between the caliper and the brake carrier.

Vehicle braking system, comprehensive: a pedal designed to receive a pressure input from a user; a ball joint connected to the pedal; an actuating rod coupled to the ball head and designed to move when the pedal is pressed down; an auxiliary piston designed to move within an auxiliary cylinder body in accordance with the movement of the actuating rod; a mounting housing that encloses the auxiliary piston; and a piston guard which is mounted on the mounting housing and extends towards the actuating rod, wherein the piston guard touches the actuating rod so that foreign substances are prevented from entering the auxiliary piston.

The invention relates to an anti-squeal pad for brake discs of a lightweight vehicle such as bicycles, scooters and possibly motorcycles and low-speed cars. The anti-squeal pad is attached to the brake disc, or the anti-squeal pad constitute an integrate part of the brake disc. The anti-squeal pad comprises a constrained layer damping (CLD) pad with at least one metallic layer and at least one viscoelastic layer for attaching the pad to a side surface of parts the brake disc or for inserting between parts of the brake disc. The invention also relates to a brake disc and to a disc brake assembly with such anti-squeal pad and to a vehicle with such disc brake assembly.

A brake pad assembly comprising a pad shim and backing plate. The pad shim and backing plate comprise a matching pair of retaining features that optimize assembly of the brake pad assembly. In some embodiments, the pad shim comprises one or more snap latches and the backing plate comprises a matching number of latch catches. In some embodiments, the pad shim comprises one or more springform tabs and the backing plate comprises a matching number of tab recesses. The retaining features may comprise or exhibit geometric shapes to optimize retention of the pad shim and the backing plate during coupling.

The application relates to a caliper housing for a disk brake system. In addition, the application relates to a method for manufacturing a caliper housing. The proposed caliper housing comprises an inner part, an outer part, and a bridge part. The bridge part connects the inner part and the outer part. The caliper housing is formed by additive manufacturing such that a first region of the caliper housing and a second region of the caliper housing are formed and such that the first region has different material properties than the second region.

The invention relates to a hydraulically actuated brake device (120) on a motor vehicle (105), comprising a brake cylinder (215), which has a brake piston (220) that can be moved therein and is designed to press a brake lining (225) against a brake disc (205) as a function of a hydraulic pressure in the brake cylinder (215). A method (300) for controlling such a brake device (120) comprises detecting a predetermined operating state of the motor vehicle (105); wherein the operating state facilitates removal of the brake piston (220) from the brake disc (205); and temporarily increasing the hydraulic pressure in the brake cylinder (215) in order to move the brake piston (220) in the direction of the brake disc (205).

It is intended to provide a torque limiter obtainable at a low cost. The present torque limiter includes a first side plate, a friction plate, a pressure plate, and an urging member. The first side plate includes an annular portion and a cylindrical portion. The annular portion extends in a circumferential direction. The cylindrical portion extends from an outer peripheral end of the annular portion in an axial direction. The friction plate is disposed to be rotatable relative to the first side plate. The pressure plate holds the friction plate in cooperation with the first side plate, with the friction plate interposed therebetween. The urging member urges the pressure plate toward the first side plate in the axial direction.

The invention relates to a brake module for a vehicle flap drive system and the vehicle flap drive system. The invention relates to a brake module (100) for a flap drive system of a vehicle, having at least one first friction partner (130) and at least one second friction partner (160, 170), the friction partners (130, 160, 170) each having at least one friction surface (140, 150, 180, 190) which rub against each other during a braking operation, wherein the first friction partner (130) is integrally formed from a plastic having a carbon fiber component. The invention further relates to a vehicle flap drive system comprising a brake module (100).

The invention provides a brake disc cap, a brake disc and a vehicle, and relates to the technical field of vehicle parts, and the brake disc cap comprises a connecting part and a plurality of silencing frameworks. The connecting part is configured to be connected with a hub of a vehicle; at least parts of the silencing frameworks are provided with silencing structures, the multiple silencing frameworks are arranged around the periphery of the connecting part in the circumferential direction, and the silencing frameworks extend in the radial direction of the connecting part. According to the brake disc cap provided by the embodiment of the invention, the influence of brake noise on the outside can be reduced, and the heat dissipation capability is improved.

A modal impact hammer and a method for vibration-testing a brake disc. The method comprises rotating the brake disc while it is meshed with a brake pad, exciting the brake disc by striking it with a vibration-exciter, in particular with a modal impact hammer and / or an electromagnet, and scanning the brake disc at different points with a laser vibrometer.

A brake pad assembly includes a pad shim and a backing plate. The pad shim and backing plate include a pair of mating securing features that optimize the assembly of the brake pad assembly. In some embodiments, the pad shim includes one or more snap latches, and the backplate includes a matching number of latch catches. In some embodiments, the pad shim includes one or more spring-type tabs, and the backplate includes a matching number of tab grooves. The securing features may include or assume geometries for optimizing retention of the pad shim and the backplate during connection.

The invention relates to a rotary drive reduction gear or geared motor within an electric brake actuator. It comprises one or more planetary gear sets (2) parallel or coaxial to the linear actuation direction (500), which are provided with at least one rotationally fixed ring gear (21). This reduction gear comprises a damping device (204) made at least partially of an elastomer material, which is arranged around the fixed ring gear and compressed radially and / or axially between the fixed ring gear and a brake housing (41). Typically, the reduction gear is a differential planetary gearset (2) driven by its sun gear with planet gears (22) meshing simultaneously with the fixed ring gear (21) and a movable ring gear (23). The latter drives the nut of a reversible screw-nut mechanism (3), which produces the linear force. The overall irreversibility is produced by the differential gearset. The invention also relates to a component determined for producing the damper of this reduction gear, to a motor unit including this damper, to a brake and to a method for assembling same.

For promoting adhesion of an anti-noise shim (6) to a surface (7) of a metallic support (2) of a braking element (1) normally painted with an epoxy resin and by means of gluing the anti-noise shim (6) to the surface by means of an acrylic glue, the surface (7) is pre-treated by applying a primer onto the epoxy resin paint layer (9), the primer consisting in an organo-titanate (10) diluted in an organic solvent, preferably an alcoholic polar solvent; the organo-titanate (10) is preferably a tetra-alkoxy titanium (IV) represented by the general formula Ti(OR)4.

The invention relates to the field of brakes, and discloses a double-return low-dragging dry type parking brake which comprises a caliper body, an executing mechanism, a return mechanism and a brake block assembly. The pincer body comprises an upper pincer body and a lower pincer body, a pincer cavity is formed on one side, a pincer back opening is formed on the other side, and the pincer cavity and the pincer back opening are communicated with each other; the upper clamp body is provided with a pin hole, a first pin assembly is installed in the pin hole and provided with a sliding pin, the lower end of the sliding pin is provided with a first limit used for limiting the lower end face of the pin hole, the upper end of the sliding pin is provided with a second limit, the sliding pin is further sleeved with a first return spring, and the upper end of the first return spring is supported on the second limit. The lower end of the first return spring is supported on the upper end face of the pin hole. The brake adopts a double-return buffering structure, is actually convenient to mount and is stable in movement.

The present invention discloses a brake caliper including an actuator, a brake caliper body, a motion conversion mechanism, and an adjustment member disposed in the flow of axial force transmission between the actuator and a brake disc. The adjustment member is operably connected to a counter member so that the motion conversion mechanism has degrees of freedom for adjustment in terms of rotation angle and radial displacement. The brake caliper of the present invention includes the adjustment member, which provides the motion conversion mechanism with adjustment space for rotation angle and radial displacement, thereby eliminating the effects of braking tangential force, brake pad wear, and caliper body deformation on the motion conversion mechanism. This makes it possible to extend the service life of the motion conversion mechanism.

The invention relates to an engine system and a method of operating a brake assembly for an engine system. An engine system includes an engine, a crankshaft operably coupled to the engine, a brake assembly, and an actuator assembly. The brake assembly comprises a brake disc. A brake disc is coupled to the crankshaft. The actuator assembly includes a brake pad and an actuator. The brake pad is selectively positionable to contact the brake disc. The actuator is configured to selectively position the brake pad into contact with the brake disc.

A spring for a brake pad assembly is configured to be pushed onto an interlocking element of a brake pad carrier plate. The spring has a clamp for securing the spring onto the interlocking element and a support member for supporting and sliding on a brake caliper. The support member has a first leg with a concave shape and configured to face toward the brake caliper. When the carrier plate and the spring are installed inside the brake caliper, the first leg forms a connecting section between a second leg and a third leg each configured to contact the brake caliper. Fourth, fifth, and sixth legs are configured face toward the brake pad carrier plate when installed. The spring also has a connecting leg that integrally connects the clamp to the support member. Also disclosed is brake pad assembly a braking device including such a spring.

The present invention relates to a braking system, a drum brake unit and a method for maintaining a drum brake unit, the braking system comprising a brake drum and at least two wear elements, wherein the wear elements are designed to come into contact with an element-side connecting section on a drum-side connecting section of the brake drum, wherein the element-side connecting section and the drum-side connecting section engage in such a way that the engagement prevents a displacement of the wear element relative to the brake drum radially to an axis of rotation of the brake drum.

An engine system includes an engine, a crankshaft operatively coupled to the engine, a brake assembly, and an actuator assembly. The brake assembly includes a brake disc. The brake disc is coupled to the crankshaft. The actuator assembly includes a brake pad and an actuator. The brake pad is selectively positionable to contact the brake disc. The actuator is configured to selectively position the brake pad to contact the brake disc.

The invention relates to a valve system (301) for a hydraulically braked towing vehicle that pulls a trailer. The valve system (301) comprises a relay valve (46), a changeover valve (10), and a brake control line (62). The relay valve (46) is actuated by means of a hydraulic control pressure, such that the level of a pneumatic brake pressure is set. This pressure is then supplied by the relay valve (46) to the pneumatic brake system of the trailer. Furthermore, the brake control line (62) pneumatically connects the relay valve (46) to the changeover valve (10). The brake control line (62) is also connected to a cavity (302) whose volume (V) is greater than 500 mm³. 3 .