A parking lock-releasing device for a vehicle, which is capable of improving workability in manually releasing a parking lock while ensuring sealing performance of an outer casing, and easily holding the locking released state. The locking release operation section includes a base having a hollow cylindrical guide portion and concentrically continuous with a front end of the outer casing, with a female screw formed on an inner peripheral surface thereof, and an operating section body which is screwed via a male screw formed on an outer peripheral surface thereof into the female screw of the guide portion, closes the guide portion, holds a front end of the inner cable, and when releasing the locking, is rotatingly operated in a predetermined direction relative to the base, to thereby cause the inner cable to slide to be pulled in the direction away from the parking mechanism.

A control device for an electric parking brake controls a motor for driving a friction member of the electric parking brake. The control device includes a processing unit which starts the motor in order to drive the friction member to a direction for placing the electric parking brake in a locked state; measures a current value of the motor in an operating state thereof; determines a cut-off current value from the measured current value of the motor according to a predetermined rule defining a correlation between the cut-off current value of the motor, by which a braking force necessary for the electric parking brake in the locked state is generated, and an increasing rate of the current; and stops the motor when the current value of the motor reaches the determined cut-off current value.

A control device for an electric parking brake controls a motor for driving a friction member of the electric parking brake. The control device includes a processing unit which starts the motor in order to drive the friction member to a direction for placing the electric parking brake in a locked state; measures a current value of the motor in an operating state thereof; determines a cut-off current value from the measured current value of the motor according to a predetermined rule defining a correlation between the cut-off current value of the motor, by which a braking force necessary for the electric parking brake in the locked state is generated, and an increasing rate of the current; and stops the motor when the current value of the motor reaches the determined cut-off current value.

The invention discloses a power-loss triggering device, including: a frame, an electromagnet and an impact bar; the impact bar vertically and movably penetrates through the frame; an energy storage piece is arranged and the energy storage piece may exert a downward action force on the impact bar; when the electromagnet is energized, the impact bar is positioned through electromagnetic force; when the electromagnet loses power, the impact bar loses a holding power from the electromagnet and conducts a downward impact movement under the action force of the energy storage piece. The power-loss triggering device is implemented through the electromagnet and an intermediate mechanism. In this invention, the electric current, the energy consumption and the cost of the electromagnet are reduced, the service life of the long-time energized electromagnet is prolonged.

The invention discloses a power-loss triggering device, including: a frame, an electromagnet and an impact bar; the impact bar vertically and movably penetrates through the frame; an energy storage piece is arranged and the energy storage piece may exert a downward action force on the impact bar; when the electromagnet is energized, the impact bar is positioned through electromagnetic force; when the electromagnet loses power, the impact bar loses a holding power from the electromagnet and conducts a downward impact movement under the action force of the energy storage piece. The power-loss triggering device is implemented through the electromagnet and an intermediate mechanism. In this invention, the electric current, the energy consumption and the cost of the electromagnet are reduced, the service life of the long-time energized electromagnet is prolonged.

A control system and method control release of a braking device from a wheel or disc. Release of the braking device is slowed or stopped based on a speed at which the braking device is released. The braking device may include a return limiting device through which a rod is configured to move. The return limiting device permits the rod to slide within the return limiting device while the brake pad holder releases from the wheel or disc no faster than a designated speed, but engages and restricts movement of the rod within the return limiting device while the brake pad holder releases from the wheel or disc faster than the designated speed.

A hydraulic vehicle brake has a piston which acts upon a friction element and is displaceable by a rotationally drivable spindle/nut arrangement into an actuating position. A spindle of the spindle/nut arrangement is secured against rotation and movable by the spindle nut either into abutment against the piston or away from the piston. The spindle nut comprises a first part, which at least close to one end thereof is configured for screw-type engagement with the spindle, and a second part, configured for rotationally driving the first part and connected to the first part by a rotationally fixed connection. The first part at an other end thereof is provided with a support surface for the rotatable, axial mounting of the spindle/nut arrangement and the second part at the other end extends into the first part.

A hydraulic vehicle brake has a piston which acts upon a friction element and is displaceable by a rotationally drivable spindle/nut arrangement into an actuating position. A spindle of the spindle/nut arrangement is secured against rotation and movable by the spindle nut either into abutment against the piston or away from the piston. The spindle nut comprises a first part, which at least close to one end thereof is configured for screw-type engagement with the spindle, and a second part, configured for rotationally driving the first part and connected to the first part by a rotationally fixed connection. The first part at an other end thereof is provided with a support surface for the rotatable, axial mounting of the spindle/nut arrangement and the second part at the other end extends into the first part.

An electromagnetic brake includes a hub disposed about a shaft and configured for rotation with the shaft about a rotational axis. An electromagnet assembly is fixed against rotation about the axis and includes a housing defining axially extending, radially spaced inner and outer poles and a brake plate extending radially therebetween. A conductor is disposed between the poles on one side of the brake plate. An armature is disposed on the other side of the brake plate and coupled to a body driven by the shaft. The electromagnet assembly, armature and hub form an electromagnetic circuit when the conductor is energized urging the armature towards the brake plate. A portion of the magnetic flux in the circuit travels radially inwardly across a first radial air gap from the inner pole to the hub and then radially outwardly across a second radial air gap from the hub to the brake plate.

A brake lining arrangement for a vehicle brake with a friction lining and a lining backing plate, having a receiving portion arranged in its lateral edge region for receiving a separate damping element, which laterally grasps the lining backing plate, wherein the damping element has a contact portion for contacting a portion of a brake caliper corresponding with the contact portion, and the damping element is adapted to be deformable or/and displaceable at least in sections upon a contacting.