115results about "Noise/vibration control" patented technology

A brake apparatus for a vehicle may include: a torque member having a pair of brake pads installed therein and spaced apart from each other, and configured to surround a brake disk; a caliper configured to cover the torque member, and having a gravitational center adjuster configured to adjust the position of a gravitational center toward the brake disk; a pair of guide rods configured to connect the torque member and the caliper, such that the caliper is slidably coupled to the torque member; and an actuator mounted on the caliper.

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).

A computer-implemented method for determining a power allocation for a vehicle combination comprising a tractor unit and at least one trailing unit is disclosed, the method comprising receiving a power demand for the vehicle combination, determining a respective power delivery from one or more batteries of the vehicle combination, and determining a power allocation for one or more units of the vehicle combination such that a cumulative power delivered from the batteries is below a threshold, wherein the total power allocation of the individual units meets the received power demand for the vehicle combination. A corresponding computer program product, control system, non-transitory computer-readable storage medium, computer system and vehicle are also disclosed.

This disc brake device (100, 100A) comprises a rotary member (10), a brake disc (20), and an air flow restriction member (30, 30A). The brake disc (20) includes a disc body (21) and a plurality of fins (22). The air flow restriction member (30, 30A) includes a base plate (31) and a projection (32). The base plate (31) is sandwiched between the rotary member (10) and the fins (22). The projection (32) is located inward from the fins (22) along the radial direction of the disc body (21). The projection (32) protrudes from the base plate (31) toward the disc body (21). The projection (32) extends in the circumferential direction of the disc body (21).

A method for identifying and characterizing noises generated by a vehicle braking system is described. The method first comprises the steps of detecting noises generated by a vehicle braking system under dynamic operating conditions and generating digital audio data representative of the detected noise. The method then provides analyzing the aforesaid digital audio data by a noise analyzer, to identify potential squeal events and respective likely squeal frequencies, and generating squeal frequency information indicative of the squeal frequencies of the identified potential squeal events. The method then comprises the steps of filtering the aforesaid digital audio data by means of high-pass filtering to eliminate spectral components at frequencies lower than a filtering frequency, to generate filtered digital audio data; and generating, based on the filtered digital audio data, a respective spectrogram, which represents, in graphical form, information present in the filtered digital audio data, comprising the sound signal intensity, as a function of time and frequency. The method then involves providing the aforesaid spectrogram and the aforesaid squeal frequency information to a trained algorithm, wherein the algorithm was trained using artificial intelligence and / or machine learning techniques. The method also provides identifying noise events, by the trained algorithm, based on the above spectrogram and squeal frequency information, classifying the identified noise events and finally providing information about the identified noise events, each characterized by the respective category. The aforesaid classification step involves a classification according to at least the following categories: a first category comprising noises to be detected generated by the characteristic dynamic operation of the braking system; and a second category comprising abnormal noises, generated by operational or test anomalies.

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.

The application relates to a brake pad assembly for a disk brake system. In addition, the application relates to a disk brake system. The proposed brake pad assembly comprises a back plate having a front side for facing a brake disk of the disk brake system and a back side. A friction layer is arranged at the front side of the back plate for contacting a friction surface the brake disk. Further, a shim is arranged on the back side of the back plate. The shim has a front side facing the back plate. Further, an adhesive layer is arranged between the back side of the back plate and the front side of the shim. The shim further comprises a metal layer having a wave-shaped surface on its front side.

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.

An anti-noise shim (100) comprising at least a perforated metal layer (110) and at least a high temperature resistant layer (120) faced / coupled together by mechanical bonding wherein the perforated metal layer comprises through holes (111) and mechanical bonding means (112), and the high temperature resistant layer comprises fibers, a filler and a binder.

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.

To provide a ventilated brake disc that can suppress abnormal noise such as brake squeal, improve heat storage and heat dissipation of a brake disc, and suppress occurrence of a thermal inclination phenomenon with a simple structure.SOLUTION: A ventilated brake disc 1 includes: a disc 10 including two disc-shaped metal plates that are inner plate 11 and outer plate 12 disposed so as to face each other; an attachment part 18 to a vehicle body; coupling ribs 13 extending in a radial direction, and coupling respective facing surfaces of the inner plate and the outer plate; and a first circumferential rib 14 provided in a region near an outer edge in a radial direction on a facing surface 12a between the inner plate and the outer plate, protruding from a plate surface of the outer plate toward a facing surface 11a of the inner plate in a direction along a rotation axis Ax of the disc, having a gap with the plate surface of the inner plate, and continuously formed in an annular shape in a circumferential direction on the plate surface of the outer plate.SELECTED DRAWING: Figure 1

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.

Examples of a brake assembly including an anti-vibration support to reduce vertical oscillation of a brake actuator are disclosed herein. In one example, a brake assembly includes a spring-applied, hydraulic release (SAHR) brake actuator coupled to a caliper and cantilevered over an axle housing, and an anti-vibration bracket that terminates at the SAHR brake actuator at a first end and extends under the SAHR brake actuator at an angle relative to the SAHR brake actuator.

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.

An actuator for a braking device is disclosed. According to one aspect of the disclosure, an actuator for a braking device includes a motor; a first reduction gear unit connected to the motor; and a second reduction gear unit connected to the first reduction gear unit; wherein the first reduction gear unit is provided as a planetary gear arrangement and the second reduction gear unit is provided as a bevel gear.

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 present disclosure relates to a caliper brake including a bracket on which a pair of pads consisting of an inner pad and an outer pad are mounted to advance and retreat, and a caliper housing slidably mounted to the bracket and provided with a cylinder part in which a piston is installed to advance and retreat by brake fluid pressure, a finger part bent downward to press the outer pad, and a body part connecting the cylinder part and the finger part.

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 present application provides a braking mechanism, which includes a first support (10), a first magnet (30) and a driving unit. The first support (10) is configured to connect a first object. The first magnet (30) is movably connected to the first support (10) along a first straight line (L1). The first magnet (30) is selected from an electromagnet and an electrically-controlled permanent magnet. The driving unit is capable of driving the first magnet (30) to move along the first straight line (L1) relative to the first support (10) to enable the first magnet (30) to reciprocate between a release position and a braking position. The first magnet (30) in the braking position is configured to contact and magnetically attract a second object movable relative to the first object. The braking mechanism is conducive to effectively reducing noise generated during braking. In addition, the present application further provides a medical table including the braking mechanism.

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.