209results 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.

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.

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.

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.

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.

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.

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.

A brake disc having a first surface including a first braking surface in contact with a brake pad, a second surface including a second braking surface, a peripheral portion connecting the first surface and the second surface, and at least one of at least one first inner groove formed on the first surface, at least one second inner groove formed on the second surface, or at least one outer groove formed in the peripheral portion, or any combination thereof, wherein the at least one first inner groove has a shape in which the first surface is recessed in a direction facing the second surface, the at least one second inner groove has a shape in which the second surface is recessed in a direction facing the first surface, and the at least one outer groove has a shape,in which the peripheral portion is recessed in a direction facing a rotational axis of the brake disc.,

The invention relates to a method for manufacturing a brake pad comprising a backing plate (10) and a friction lining (12), comprising at least the following steps: a) preparing the backing plate (10) for attaching the friction lining (12) to the backing plate (10), with or without an intermediate layer between the backing plate (10) and the friction lining (12), b) roughening at least a portion of the surface area of the backing plate (10), and c) attaching the friction liner (12) to the roughened surface of the backing plate, where the surface of the backing plate is roughened using a pulsed high pressure water jet (4).

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 novel disc brake shim and a disc brake that can effectively suppress vibration and squeal are provided. The disc brake shim that is formed of a multilayer structure with three layers or more including at least a base material layer formed of a metal sheet, and a foamed rubber layer that is laminated on a main surface on one side of the base material layer, wherein the foamed rubber layer is an intermediate layer of the multilayer structure, and the disc brake including pad materials on both sides in an axial direction of a disc rotor, and shims on opposite sides from the disc rotor, of the pad materials adjacently, wherein each of the shims is the disc brake shim according to the present invention.

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 provides a brake caliper, a brake mechanism and a vehicle. The brake caliper comprises a shell, a friction plate and a limiting piece. The shell comprises a shell body and a guide body; the guide body is fixed to the shell body, extends in the first direction and is located in the containing space in the shell body. The friction plate is located in the containing space and slidably connected to the guide body in the first direction, the friction plate comprises two side wall faces, and the limiting piece is movably connected to the shell body; the brake caliper comprises a brake state and an idle state; when the brake caliper is in a brake state, the limiting piece and the friction plate are arranged at an interval, and the friction plate is used for moving in the first direction; when the brake caliper is in an idle state, the limiting piece abuts against at least one side wall face of the friction plate. According to the arrangement, when the brake caliper is in the idle state, the limiting piece limits movement of the friction plate, and unnecessary impact between the friction plate and the shell is reduced or avoided.

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

Disclosed is an actuator for a brake device. In accordance with an aspect of the disclosure an actuator for a brake 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 assembly, and the second reduction gear unit is provided as a bevel gear assembly.

Hydrostatic rotary machine comprising: - an internal element (1) and an external element (2) which are coaxial and mounted to rotate relative to one another about an axis of rotation (R), one of these elements being a rotor and the other of these elements being a stator; - a counter-brake disc (31) mounted on a distribution base (4), extending radially around the distribution base (4) and rotationally coupled to the external element (2); - a passive brake piston (36) designed to activate a brake (21) under the action of an elastic element (43) and mounted to be axially movable with respect to the counter-brake disc (31); - a release hydraulic chamber (50) arranged between the counter brake disc (31) and the passive brake piston (36).