283results 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.

A hydrostatic rotary machine includes (i) an inner element and an outer element which are coaxial and mounted with the ability to rotate one with respect to the other about an axis of rotation, one of these elements being a rotor and the other of these elements being a stator, (ii) a brake counter-disc which is mounted on the distribution hub, which extends radially around the distribution hub, and which is rotationally coupled to the outer element, (iii) a passive-braking piston designed to activate a brake under the effect of an elastic element and which is mounted with axial mobility with respect to the brake counter-disc, and (iv) a hydraulic brake-release chamber positioned between the brake counter-disc and the passive-braking piston.

According to one aspect of the disclosure, a brake piston is provided which is provided in a braking system of a vehicle and presses a brake pad against a disc by means of hydraulic brake pressure, wherein the brake piston comprises: a body section which is installed in a cylinder provided in a brake caliper housing, has the form of a column and is arranged to be able to move forwards and backwards, wherein the body section comprises: a first body section which is provided on an outside of the body section in a radial direction of the disc; and a second body section which is provided on an inside of the body section in the radial direction of the disc and has a coefficient of elasticity which differs from a coefficient of elasticity of the first body section.

Braking system (1) and method aimed to produce a forced increase in a damping layer (7) temperature of a brake pad (3), arranged between a metal support (5) and a friction material block (6) thereof, wherein the damping layer (7) is heated such as to stay at a temperature above a glass transition temperature of rubber components thereof, so assuring a maximum damping behavior; the heating is caused by magnetic induction generated by one or more electrically conducting coils (15) fed in AC by a power source (10) carried by the vehicle and arranged either integrated in the brake pad (3), e.g. carried by the support (5), or in the vicinity thereof.

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).

Anti-noise shim (101 ) comprising at least a damping material layer comprising fibres selected from natural organic and / or artificial and / or synthetic fibres or inorganic fibres, and a binder.

An apparatus includes a retainer, a rotational portion that is connected to the retainer so that it is able to rotate with respect to the retainer on a rotation axis, a rotor that is connected to the rotational portion for rotation in unison with the rotational portion, and a caliper assembly that is connected to the retainer so that the caliper assembly is able to move according to a line of action. The apparatus also includes a damper assembly that is connected to the retainer and is connected to the caliper assembly to regulate movement of the caliper assembly with respect to the retainer along the line of action, wherein the caliper assembly and the damper assembly cooperate to define a mass damper system that damps vibration of the rotational portion.

A brake pad assembly comprises: a friction pad configured to be contactable with a brake rotor to apply a force to the brake rotor, the friction pad having a first recessed groove, and a back plate to which the friction pad is attached, the back plate having a second recessed groove. A footing moving the brake pad assembly has a projection passing through the second recessed groove of the back plate to limit rotational movement of the footing thereby arresting the rotational movement of a screw and a ball screw, and the first recessed groove of the friction pad is aligned with the projection of the footing and the second recessed groove of the back plate. The projection of the footing comprises a first projection part extending from the footing and a second projection part protruding from the first projection part in a direction different from a direction in which the first projection part of the projection of the footing extends.

A learning device can include one or more processors, and a storage medium storing computer-readable instructions that, when executed by the one or more processors, enable the one or more processors to identify one of or both of first noise data measured from a first external device provided in a vehicle and second noise data measured from a second external device of a user that drives the vehicle, and apply training data for online learning, the training data including the one of or both of the first noise data and the second noise data, to a squeal noise prediction model trained to predict squeal noise of the vehicle to perform online learning of the squeal noise prediction model.

A method for manufacturing a layered product providing a base sheet (1) with one surface (4) and another, opposite surface (5), applying a first layer (2) of elastomeric material to the one surface (4) of the base sheet (1), said first layer (2) being a premanufactured foil of elastomeric material manufactured by being calendered, and applying a second layer (3) of elastomeric material to the other surface (5) of the base sheet (1), said second layer (3) being fabricated by liquid coating performed by a liquid material being passed from a vessel (14) containing the liquid material directly to the base sheet (1), or indirectly to the base sheet (1) via a liner (19). The disclosure also relates to a brake shim and to a gasket, each of which constituting a layered product according to the disclosure and being manufactured by the method according to the disclosure.

The invention relates to the technical field of workover rigs, in particular to a main roller brake device of a workover rig, which comprises a main roller and brake equipment, a use structure is arranged on one side of the brake equipment, and the use structure comprises a disassembly and assembly mechanism, a buffer mechanism and a protection mechanism. The dismounting and mounting mechanism comprises a placing plate, a bidirectional threaded rod, a threaded plate, clamping plates and a guide rod I. The inner wall of the placing plate is rotatably connected with one end of the bidirectional threaded rod. According to the main roller brake device of the workover rig, the positions of the two clamping plates can be rapidly and conveniently adjusted, and then brake equipment can be rapidly and conveniently fixedly mounted; and the limiting plate can be inserted into the supporting plate for further limiting and fixing, so that the problem that the brake device cannot be quickly and conveniently disassembled and assembled due to the fact that an operator needs to disassemble a large number of fixing bolts during disassembly and assembly every time is solved, and the working efficiency of the brake device is improved.

To provide a brake system damping device which can be manufactured at low cost and achieve a long service life.SOLUTION: The invention relates to a brake system damping device 10 including: a first space 20 to which hydraulic pressure should be applied; a second space 24 containing a compressible medium; and a first separating element 22 for separating the first space from the second space. The brake system damping device includes: a third space 28 containing a compressible medium; and a second separating element 26 for separating the second space from the third space. The second space is connected in medium-conducting fashion to the third space by a passage 50 formed in the second separating element. A closure element 34 can be moved with the first separating element so as to close the passage in a movement direction by the closure element as soon as the hydraulic pressure has reached a predefined pressure value in the first space. According to the invention, a plug-type element is arranged in the passage.SELECTED DRAWING: Figure 1

The invention discloses a brake locking device and a brake caliper assembly, and belongs to the technical field of automobile brake systems, the brake locking device comprises an MGU shell, a transmission gear mechanism arranged on the MGU shell and a locking component used for locking the transmission gear mechanism for parking, a mounting cavity used for containing the locking component is formed in the MGU shell, and the MGU shell is internally provided with a brake caliper. The anti-collision device has the beneficial effects that radial impact is effectively reduced, meanwhile, impact noise can be effectively reduced, the strength and the impact resistance of the locking component are enhanced, heat in the locking component can be transmitted out in time, and therefore the anti-collision device has the advantages of being good in anti-collision performance, good in anti-collision performance, good in anti-collision performance, good in anti-collision performance, good in anti-collision performance, good in anti-collision performance, good in anti-collision performance, good in anti-collision performance and good in anti-collision performance. And the service life of the locking device is prolonged.

The invention relates to a wheel arrangement (10) for a motor vehicle (12), comprising a wheel carrier (14) via which a wheel (16) can be rotated about a wheel rotation axis (18), a brake caliper carrier (20) on which a brake caliper (22) is held, and a motor carrier (24) for holding an electric motor (26) by which a drive element (28) can be driven. The motor carrier (24) and the brake caliper carrier (20) are mounted on the wheel carrier (14) for rotation about the wheel rotation axis (18), and rotation of the drive element (28) relative to the motor carrier (24) leads to opposite rotation of the brake caliper carrier (20) and the motor carrier (24) relative to the wheel carrier (14), so that the brake caliper (22) and the electric motor (26) form respective damper masses that can be rotated synchronously relative to the wheel carrier (14). The invention further comprises a motor vehicle (12).

A friction unit for a disc brake of a vehicle comprises a carrier plate, a friction lining with a friction material layer having a contact surface for contacting a disc, and a backing layer having an inner surface oriented opposite to the contact surface and connected to the carrier plate, the backing layer having at least one slot formed in the inner surface.

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.

brake pad (10) with a carrier plate (12) and a friction lining (14), wherein the carrier plate (12) has: a reinforcing plate (16) with an outer surface (28), an inner surface (26) and a shaped hole (32, 34); and a retaining plate (18) with an outer surface (40), an inner surface (38) and a locking projection (48, 50) which interacts with the shaped hole (32, 34) of the reinforcement plate (16) to mechanically lock the retaining plate (18) to the reinforcement plate (16) so that the inner surface (26) of the reinforcement plate faces the outer surface (40) of the retaining plate, wherein the retaining plate (18) contains a plurality of retaining elements (46) configured to lock the friction lining (14), wherein the plurality of retaining elements (46) are provided on the inner surface (38) of the retaining plate (18) to lock the friction lining (14), wherein the plurality of retaining elements (46) are arranged on the inner surface (38) of the retaining plate (18) separately from the locking projection (48, 50) and the shaped hole (32, 34), wherein the friction lining (14) comprises a friction material and the friction lining comprises a friction surface (22) and a mounting surface (24), wherein the mounting surface (24) is attached to the inner surface (38) of the retaining plate (18), wherein the friction material on the mounting surface (24) extends at least partially into the molded hole (32, 34), and wherein the retaining plate (18) is arranged between the friction lining (14) and the reinforcement plate (16), such that the inner surface (38) of the retaining plate (18) is opposite the mounting surface (24) of the friction lining (14) and the outer surface (40) of the retaining plate (18) is opposite the inner surface (26) of the reinforcement plate (16).

To provide a device for attenuating vibration in a brake system, which has improved attenuation characteristics.SOLUTION: A brake system attenuation device (10) has a first chamber (20) on which a fluid pressure should be applied, a second chamber (24) in which a compressive medium exists inside, and a first separation element (22) for separating the first chamber (20) from the second chamber (24). The brake system attenuation device (10) has a third chamber (28) in which a compressive medium exists inside, and a second separation element (26) for separating the second chamber (24) from the third chamber (28). The second chamber (24) is connected to the third chamber (28) so as to guide a medium by a passage (50) formed in the second separation element (26).SELECTED DRAWING: Figure 10

A brake assembly includes a heat sink, a piston, and a retraction plate. The retraction plate defines a lumen. The piston is mechanically separated from the retraction plate and configured to extend through the lumen defined by the retraction plate to contact the heat sink during a braking operation. The piston is configured to contact the heat sink prior to the retraction plate contacting the heat sink during the braking operation.

The invention provides an open pit coal mine dump truck tire anti-lock braking system dust blocking and noise reduction device which comprises a brake disc, a brake caliper is arranged at the top end of the brake disc, and a dust blocking and noise reduction cover is arranged on the surface of the brake caliper. The dust blocking and noise reduction cover comprises a dust blocking and noise reduction net arranged above the brake calipers and a fixed side wall arranged in the side wall direction of the brake calipers, the dust blocking and noise reduction net and the fixed side wall are integrally connected, and a net structure used for cooling the brake calipers is arranged on the dust blocking and noise reduction net. And a fixing structure is arranged between the fixed side wall and the brake calipers. The dust blocking and noise reduction cover covers the brake disc, so that dust is blocked above the brake calipers, and the noise of the brake calipers is reduced.

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 drum brake is disclosed. The drum brake comprises: a drum arranged to rotate with a wheel; a pair of brake shoes positioned inside the drum and arranged to move by a wheel cylinder to an inner circumferential surface of the drum; and a lining attached to an outer circumferential surface of each brake shoe and arranged to rub against the inner circumferential surface of the drum as the brake shoe works outwards, the brake shoe comprising an expansion portion made of a material that thermally expands in a radial direction and arranged to compensate for a gap formed between the lining and the thermally expanding drum.

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.

The present invention relates to a friction pad for use in automobile brakes. The right side of the friction pad serves as a friction surface. The upper side of the friction pad slopes downward from right to left, and the lower side of the friction pad slopes upward from right to left. The present invention also provides a brake pad comprising a base plate and the friction pad, wherein the friction pad is fixedly connected to the right side of the base plate. The present invention also provides a brake comprising the brake pad. The present invention also provides an automobile comprising the brake. The present invention can reduce or even eliminate braking noise by rationally designing the friction pad structure.

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.