The disclosure relates to a method for reducing unwanted vibrations in a friction brake. The friction brake has at least one friction surface and at least one brake lining associated with the friction surface. The method comprises the following steps: a) pressing the brake lining against the friction surface with a clamping force in order to convert a braking request into a braking force; and b) modulating a temporal fluctuation onto the clamping force in order to avoid or reduce the unwanted vibrations. A corresponding braking system together with the associated program code is also disclosed.

The disclosure relates to the technical field of vehicle accessories, and particularly provides a brake for a vehicle and a vehicle. The disclosure aims at solving the problem that existing brakes for a vehicle usually cannot overcome low-frequency stubborn noise generated by a caliper structure in the brake in a braking process. For this purpose, the brake for a vehicle according to the disclosure comprises a first caliper body and a second caliper body, wherein the first caliper body and the second caliper body are provided with a first friction disc and a second friction disc respectively, a brake disc is arranged between the first friction disc and the second friction disc, and the first friction disc and the second friction disc are each further provided with at least one mass block, so as to quickly reduce low-frequency operating noise of the brake, thereby fundamentally eliminating braking noise, and then solving the problem that the existing brakes for a vehicle usually cannot overcome low-frequency stubborn noise generated by a caliper structure in the brake in a braking process.

The disclosure provides a bicycle caliper including a casing assembly and a plurality of pistons. The casing assembly has a first fluid inlet, a second fluid inlet, a first fluid channel, a plurality of piston chambers, and a second fluid channel. The first fluid channel has a first connection opening and a second connection opening opposite to each other. The first connection opening and the second connection opening of the first fluid channel are respectively in fluid communication with the first fluid inlet and the second fluid inlet. The first fluid channel penetrates through the piston chambers. Two opposite openings of the second fluid channel are respectively in fluid communication with the first connection opening and the second connection opening of the first fluid channel, and the second fluid channel does not penetrate through the piston chambers. The pistons are respectively and movably disposed in the piston chambers.

The invention relates to a motor vehicle actuator, in particular a brake actuator, comprising a housing (3) which consists of a housing container (1) and a housing cover (2) designed as a base support, and in which an electric motor (4) and a transmission (6) coupled to the electric motor via a torque transmitting device (5) are arranged. A retaining frame which can be arranged on the housing cover (2) is provided in order to arrange the electric motor (4) within the housing (3). The invention is characterized in that the holding frame (7) is designed as a damping and/or spring device.

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.

This brake lining includes: a plurality of friction members which are arranged to be spaced from each other, each of the friction members having a front surface that is to face a sliding surface of a brake disk; a back board fastened to a back surface of each of the friction members; a base plate that supports each of the friction members at a region including a center portion of each friction member; and an elastic member disposed between the base plate and the back board, on a back surface side of each friction member. Two friction members that are adjacent to each other are taken as a pair, and the back board is fastened to each of the pairs of friction members. In each pair of friction members, the two friction members are arranged along the circumferential direction of the brake disk.

A brake system damping device includes a first chamber to which hydraulic pressure is applied, a second chamber in which a compressible medium is located, a first separating element separating the first chamber from the second chamber, a third chamber in which a compressible medium is located, and a second separating element separating the second chamber from the third chamber. The second chamber is connected to the third chamber in a medium-conducting manner by an outlet formed in the second separating element, and a closing element by means of which the outlet can be closed in a movement direction as soon as the hydraulic pressure in the first chamber has reached a predefined pressure value. The outlet is formed on its side facing the second chamber with at least one outlet opening, the cross-sectional area of which is oriented substantially in the movement direction of the closing element.

The disclosure provides a bicycle caliper including a casing assembly and a plurality of pistons. The casing assembly has a first fluid inlet, a second fluid inlet, a first fluid channel, a plurality of piston chambers, and a second fluid channel. The first fluid channel has a first connection opening and a second connection opening opposite to each other. The first connection opening and the second connection opening of the first fluid channel are respectively in fluid communication with the first fluid inlet and the second fluid inlet. The first fluid channel penetrates through the piston chambers. Two opposite openings of the second fluid channel are respectively in fluid communication with the first connection opening and the second connection opening of the first fluid channel, and the second fluid channel does not penetrate through the piston chambers. The pistons are respectively and movably disposed in the piston chambers.

A brake system damping device includes a first chamber to which hydraulic pressure is applied, a second chamber in which a compressible medium is located, a first separating element separating the first chamber from the second chamber, a third chamber in which a compressible medium is located, and a second separating element separating the second chamber from the third chamber. The second chamber is connected to the third chamber in a medium-conducting manner by an outlet formed in the second separating element, and a closing element by means of which the outlet can be closed in a movement direction as soon as the hydraulic pressure in the first chamber has reached a predefined pressure value. The outlet is formed on its side facing the second chamber with at least one outlet opening, the cross-sectional area of which is oriented substantially in the movement direction of the closing element.

The invention relates to a brake pad for brake disc, and for a method for producing the brake pad, which has a support plate with a first surface, a second surface and at least one hole that extends from the first surface to the second surface; at least one counterweight rigidly connected to the support plate to modify a vibration of the support plate, with the counterweight having a first face facing the first surface and a protrusion that projects from the first face and has a free end, with the protrusion being inserted into the hole; and at least one groove in the second surface in a region near the hole, wherein the protrusion is partially embedded in the groove.