Abstract: An electromagnetic brake to restrict or prevent movement of a motor in a vehicle brake system, the electromagnetic brake includes: a core; a static plate; a moving plate located between the core and the static plate; a rotor located between the core and the moving plate; one or more legs that extend from the core; and one or more fasteners that connect the one or more legs to the static plate, the core includes a cylindrical portion and a flange that extends around the cylindrical portion, the one or more legs extend from the flange radially around the cylindrical portion.

Abstract: A brake system that includes a first brake piston and a second brake piston; a motor; a distributing assembly that includes a first output and a second output, and a deactivator. The distributing assembly distributes torque or power from the motor to the first brake piston via the first output and to the second brake piston via the second output. In a first operating configuration, the deactivator is inactive, and the distributing assembly distributes the torque or power to both of the first and second outputs such that a speed of the first output and the second output varies. In a second operating configuration, the deactivator is configured to deactivate the distributing assembly and the distributing assembly distributes the torque or power to both of the first output and the second output such that the speed of the first output and the second output is generally the same.

Abstract: A floating disc brake includes an outer pad disposed on an axially outer side relative to a rotor, an inner pad disposed on an axially inner side relative to the rotor, a fixing member disposed on the axially inner side relative to the rotor, the fixing member being configured to support the inner pad to be movable in an axial direction and being fixed to a vehicle body, and a yoke supported to the fixing member by a slide pin to be movable in the axial direction, the yoke supporting the outer pad. The fixing member is provided with an anchor disposed on a radially outer side relative to the rotor, the anchor being configured to bear a brake tangential force that acts on the outer pad at the time of braking within a circumferential range of a lining constituting the outer pad.

Abstract: There is provided a non-excited operation type brake for a brake device that is configured to allow rotation of a motor shaft when energized and that is configured to stop the rotation of the motor shaft when de-energized, including: a casing that is configured to function as a yoke and that includes a coil accommodating portion having a substantially U-shaped cross section and formed in an annular shape as a whole. The casing further includes an auxiliary yoke that has a substantially cylindrical shape and that is fitted inside the coil accommodating portion, the auxiliary yoke being separated from the coil accommodating portion.

Abstract: A disc brake device includes a pad, a caliper including a cylinder, a piston, and a rotary-to-linear motion conversion mechanism. The piston is divided into two parts that are a piston main body and a piston cap. The rotary-to-linear motion conversion mechanism includes a rotary member and a linear motion member. A unidirectional rotation regulating portion between the piston main body and the piston cap is configured to regulate relative rotation of the piston main body in a forward rotation direction with respect to the piston cap when the rotary member is driven to rotate in the forward rotation direction, and to allow relative rotation of the piston main body in a reverse rotation direction with respect to the piston cap when the rotary member is driven to rotate in the reverse rotation direction.

Abstract: A disc brake pad spring being attached to a disc brake device in which pads located to sandwich a rotor are supported with a pad support member by inserting in an axial direction pins of the pad support member into a through hole formed in a radially inner side part of a peripheral-direction one-side part of a back plate of the pads, and elastically pressing pads against the pad support member. The disc brake pad spring is formed by a single metal plate, and includes first pressing parts pressing a peripheral-direction one-side part of an outer peripheral edge of the respective back plates of each of the pads toward a radially inner side, and second pressing parts pressing a peripheral-direction one-side surface of the respective back plates of each of pads toward the other peripheral side.

Abstract: A brake system that includes a brake piston and a spindle. The brake piston includes a piston pocket defined in the brake piston. The piston pocket includes a threaded portion. The spindle includes a threaded portion. The threaded portion of the spindle is adapted to threadably engage the threaded portion of the piston pocket.

Abstract: A brake system that includes a brake caliper, a motor, and a torque distributing assembly configured to distribute torque from the motor to a first brake piston and/or to a second brake piston. The torque distributing assembly includes a gear set that includes gears that are configured to rotate about an axis. One of the first brake piston and the second brake piston is configured to move along the same axis during a brake apply or a brake release.

Abstract: A brake system that includes a brake caliper comprising an inboard side and an outboard side, the inboard side of the brake caliper includes one or more brake pistons and the outboard side of the brake caliper comprises one or more brake pistons, and a brake pad comprising a first pad section and a second pad section. During a service brake apply, both of the first pad section and the second pad section are moved against a braking surface to create a clamping force. During a parking brake apply, only one of the first pad section and the second pad section is moved against the braking surface to create a clamping force. The first pad section comprises a friction material having a coefficient of friction that is different than a coefficient of friction of the second pad section.

Abstract: A method for manufacturing a friction material containing a friction modifier, a fibrous material and a binder as raw materials is provided. The method includes a step of mixing and agitating the raw materials by low frequency acoustic agitation. A content of the fibrous material in the friction material may be 1 mass % or more and 50 mass % or less. The content of the fibrous material in the friction material may be 3 mass % or more and 40 mass % or less.

Abstract: A testing machine comprising: (a) a transmitter; (b) a receiver opposing the transmitter; and (c) a compressibility sensor in communication with the transmitter, the receiver, or both, wherein the testing machine transmits a signal between the transmitter and the receiver to perform ultrasonic testing and further performs compressibility testing of one or more objects positioned between the transmitter and the receiver.

Abstract: A method of servicing a brake system, comprising: (a) moving an actuator of the brake system from a first position to a second position; (b) conducting a manual operation on the brake system when or after the actuator reaches the second position; and (c) after completing the manual operation, moving the actuator to a third position.

Abstract: A motor gear unit for a disc brake apparatus includes an electric motor, a speed reduction mechanism configured to transmit rotation of the electric motor to a plurality of rotary-to-linear motion conversion mechanisms arranged in a plurality of cylinders provided in a caliper, and a housing accommodating the electric motor and the speed reduction mechanism. The speed reduction mechanism includes a plurality of final gears connected directly or via another member to the plurality of rotary-to-linear motion conversion mechanisms and a power distribution mechanism that includes one support shaft and that is configured to distribute and transmit input power to the plurality of final gears. The power distribution mechanism is supported by the housing by supporting and fixing end portions of the support shaft on axially both sides to the housing.

Abstract: A pad clip in which a circumferential dimension from a first contact portion in contact with a side surface of a coupling portion, which is disposed on the other side in the circumferential direction, on the one side in the circumferential direction in a fixing portion disposed on the other side to a side surface of a sandwiched plate portion on the one side is available to be set independently of a circumferential dimension from a first contact portion to a second contact portion in contact with the side surface of the coupling portion, which is disposed on the one side, on the other side in the fixing portion disposed on the one side. The side surface of the sandwiched plate portion is in surface contact with a torque-receiving surface regardless of bending deformation generated in a main body portion based on elastic deformation of a pressing portion.

Abstract: A brake system that includes a fixed brake system, a sliding brake system, and a support structure. The fixed brake system has an inboard side and an outboard side and being operable to move an inboard brake pad and/or an outboard brake pad against a brake rotor to generate a first clamping force. The sliding brake system being operable to move relative to the fixed brake system and to move the inboard brake pad and/or the outboard brake pad against the brake rotor to generate a second clamping force. The support structure providing a sliding contact between the sliding brake system and the fixed brake system during movement of the sliding brake system relative to the fixed brake while generating or releasing the second clamping force. The support structure is located in a region of the outboard side of the fixed brake system.

Abstract: A method of controlling a brake system that includes a motor and an actuator. The method includes moving the actuator towards a retracted position; activating a timer; monitoring a motor characteristic of the motor and monitoring the timer; and determining the actuator has reached the retracted position after the timer meets or exceeds a predetermined time threshold before the motor characteristic has reached or exceeded a predetermined motor characteristic threshold.

Abstract: A position detection device includes a position sensor including a coil and a magnetic core, and a signal processor. The signal processor generates a rectangular wave voltage applied to the coil, converts a current which flow through the coil by the rectangular wave voltage into a voltage and outputs the voltage, and acquires a voltage measurement value obtained by sampling the output voltage after predetermined time in synchronization with a timing of rising or falling of a waveform of the rectangular wave voltage. The predetermined time is set such that the voltage measurement value is restricted within a range of 40% or more and 99.999% or less with respect to a maximum value of the rectangular wave voltage when the coil is at a position where an inductance of the coil is minimum.

Abstract: A motor gear unit for a disc brake apparatus is provided. A speed reduction mechanism is connected to a first connection portion of a motor shaft of an electric motor. A non-excited operation type brake is connected to a second connection portion of the motor shaft. In a state where the disc brake apparatus is attached to a vehicle body, the motor shaft is disposed so as to be orientated in an upper-lower direction, and the non-excited operation type brake is disposed above the electric motor.

Abstract: There is provided a friction material including: a friction modifier; a binder; and a fibrous material. A phosphate-based dispersant is contained as the friction modifier. Preferably, a content of the phosphate-based dispersant is 0.2 mass % to 2.0 mass %. Preferably, the phosphate-based dispersant is at least one selected from a group consisting of sodium hexametaphosphate, sodium polyphosphate, and sodium pyrophosphate.

Abstract: A friction material including a friction modifier, a binder, and a fiber base material. A steel fiber is contained as the fiber base material. A natural graphite is contained as a lubricant. A content of copper is 0.5% by mass or less in terms of copper element. A titanate is not contained.