Abstract: An actuation device for a cable-operated parking brake of a motor vehicle and which enables actuation of the parking brake selectively by muscular energy or with a motive power assist, with the actuation device including a brake cable tightening device, and a drive for actuating the brake cable tightening device and including first and second drive elements connected, respectively, with muscular energy-actuated member and an auxiliary motor, and a planetary gear drive having a first drive member connectable with the first drive element, a second drive member connectable with the second drive element, and a third dive member connected with the cable tightening device thereby connecting the first and second drive element selectively with the cable tightening device.

Abstract: A valve regulates fluid displacement in a damper assembly, for example, displacement of hydraulic fluid in a sealed shock absorber. The valve is placed between a portion of fluid at one pressure and regulates the passage of fluid through an aperture or passage to a portion of fluid at a lower pressure by a blocking member which moves to obstruct the aperture in accordance with a desired level of damping. The blocking member is, or is driven by, an electroactive device, such as a bimorph actuator formed of ferroelectric material. In one embodiment, the blocking member is a bimorph which covers the aperture, and is flexibly displaced by passage of pressurized fluid through the aperture. A controller provides an electrical actuation signal to move the bimorph toward or away from the aperture, augmenting or decreasing its closing bias to affect both the threshold flow initiation pressure and the rate of flow once the passage opens.

Abstract: Electroplated chromium coatings on automobile suspension damper piston rods are replaced with thermal or kinetic spray coatings of: (a) suitable corrosion-resistant metal alloys such as iron and chromium containing nickel-based alloys or chromium containing steels, or (b) suitable ceramic coatings such as electrically insulative alumina ceramics. The spray coatings are porous, and the metal alloy coatings usually should be sealed for corrosion protection.

Abstract: A conversion system enables a locomotive equipped with a conventional pneumatic brake control system to control braking on a train whose railcars each have electrically controlled pneumatic (ECP) brake equipment. The conversion system includes a power conversion mechanism, a signal conversion mechanism and two pressure reduction circuits. The power conversion mechanism converts battery voltage received from a power trainline of the locomotive to a predetermined nominal voltage. Made available to an ECP trainline that runs along the railcars, the predetermined nominal voltage is used to power the ECP brake equipment on each railcar in the train. The signal conversion mechanism converts the pneumatic brake commands carried in the brake pipe of the locomotive into electrical brake commands corresponding thereto. Transmitted along the ECP trainline, the electrical brake commands control the ECP brake equipment on each railcar and the braking effort deliverable thereby.

Abstract: The invention relates to a vehicle brake system of a motor vehicle, with an electronically controllable brake booster, comprising a vacuum chamber and a pressure chamber which are separated from each other by a movable wall, a control valve arrangement which can be actuated by an electro-magnetic actuator, wherein a pressure difference between the pressure chamber and the vacuum chamber is adjustable, with the movable wall changing its position as a function of the pressure conditions in the vacuum chamber and in the pressure chamber, thereby actuating a master cylinder, with the electromagnetic being supplied with current signals by an electronic control unit during operation, which the electronic control unit generates as a function of driving dynamics conditions or external influences, characterised in that upon the presence of certain driving dynamics conditions or external influences, or combinations thereof which render the actuation of the master cylinder necessary with a predetermined probability with

Abstract: A braking device for wheels of vehicles such as trailers includes a caliper in which brake linings are guided. Between these linings, at least one brake disk is displaceably held on driving toothing of a wheel hub. A pneumatically operable mechanical adjusting device interacts with the brake linings. The braking device includes at least one brake disk in a caliper which is fixed. On one end, the caliper is connected by a fastening element with an axle element of the vehicle. On the caliper, an enclosing housing for bearing the adjusting device is held. By way of a bearing plate, the adjusting device is also supported on the caliper. Pressure pistons of the device are guided by a one-part yoke in a jointly axially adjustable manner and can be acted upon by pressure with respect to the brake linings and the brake disks.

Abstract: An anchor system for stabilizing a vehicle during a pulling operation, such as with a winch or a come-along, has a wheel or track stop with a tether that attaches to a frame member, such as a bumper, of the pulling vehicle. The wheel or track of the vehicle rides over the stop, past center, and is prevented from further rolling by the tether. The forces on the vehicle are concentrated on a front edge of the stop, effectively anchoring the vehicle, which tends to rotate about the front edge as a fulcrum.

Abstract: A fixed caliper brake wherein, the material rigidity is reduced at appropriate locations on the brake housing and of the brake linings in order to create partial systems at the brake which can vibrate in a damped manner. With respect to weight, these steps are undertaken extensively in a neutral manner and they reduce the vibrations of the entire brake assembly resulting in a reduction in braking noises.

Abstract: A power source activated handbrake release mechanism for automatically releasing a parking brake assembly for a railroad vehicle braking system is provided. The power source activated handbrake release mechanism includes a hydraulically or pneumatically activated piston assembly including a piston rod mounted for movement upon activation of a piston within the piston assembly. An elongated member is associated at one end with this piston rod such that it moves laterally with respect to a bottom surface of the piston rod upon vertical movement of this piston rod. Another end of the elongated member is secured with the release shaft of the handbrake such that the lateral movement of the elongated member results in a rotational force being applied to the release shaft causing the automatic release of the handbrake.

Abstract: The invention involves a spring for a floating caliper disc brake with a frame jaw caliper which, in the middle section of its axial outer edge, has a side window and on both sides of this window openings for an axial bracket of a fixed brake anchor plate. The caliper is displaceably and axially mounted on the bracket of the brake anchor plate. Brake linings are attached on both sides of the disc brake to the bracket of the brake anchor plate in an axial, displaceable manner and are also overlapped by the frame jaw caliper. The invention includes a onepiece curved wire holding spring, the middle section of which is releasably attached to the axial outer brake lining and which has two springs arms that are essentially placed in a contrary tangential direction to the middle section. The holding spring biases the frame jaw caliper radially against the brake anchor plate and biases the axial outer brake lining axially against the inside of the outer edge of the frame jaw caliper.

Abstract: A brake caliper adjusting device includes a cam member fixedly received in the frame of the caliper and fixedly mounted to a shaft to which the frame of the caliper is mounted. A pushing member is pivotally received in the frame with the lower end engaged with the cam member. A supporting member is biasedly connected to the brake caliper and a brake pad is fixedly connected to the supporting member. One of two sides of the supporting member contacts the upper end of the pushing member. An adjusting member is rotatably mounted to the shaft. A biasing member has one end thereof received in the groove and the other end of the biasing member is connected to the caliper. A bolt extends through the adjusting member and is engaged with a threaded hole in the shaft so that the adjusting member can be rotated by rotating the bolt. The brake pad is adjusted when the adjusting member is rotated relative to the brake caliper.

Abstract: The invention relates to a brake apparatus with an electric service motor, which serves to actuate the brake via an actuating device. To enable setting an air clearance, the apparatus includes a readjuster for setting the air clearance, the brake is actuated with the readjuster and then reversed by a defined length. To realize a parking braking function, the apparatus includes a parking brake that can be repositioned from a released position to a braking position and that acts on the actuating device.

Abstract: The present invention relates to a braking device for use with a vehicle which moves along a surface, the braking device being operated by an area of magnetic material, and is particularly, but not exclusively, for use with a wheeled trolley or cart to deter its removal from a designated area. The braking device comprises a first portion for mounting on the vehicle, a braking portion movable relative to the first portion from an inoperative position to an operative braking position in braking contact with the surface, and retaining portion for retaining the braking portion in its inoperative position. The retaining portion comprises a blocking portion and trigger portion, the trigger portion being movable between a primed position and a triggered position by passage in close proximity to the magnetic material, and in the primed position, holding the blocking portion in a blocking position preventing movement of the braking portion.

Abstract: The brake system has at least one brake circuit (I), in which a high-pressure pump is disposed. A self-aspirating charge pump is also provided, which is connected at least indirectly to the intake side of the high-pressure pump by an intake line of a supply container for brake fluid and by a pressure line. In the event of an inadequate supply of brake fluid by the charge pump, the pumping of air into the brake circuit (I) is intended to be precluded. To that end, a siphon is disposed in the intake line of the charge pump. Air aspirated by the siphon suddenly prevents pumping by the charge pump. The brake system is intended for use in motor vehicles with slip control or for automatic brakes.

Abstract: A hydraulically damping elastomer bearing comprises an outer bearing sleeve as well as an elastomer element arranged therein and a bearing core which is held by the elastomer element. Between the bearing core and the bearing sleeve chambers are formed and filled with fluid, which chambers are interconnected via at least one channel. In order to achieve progressive damping characteristics in the impact region, between the bearing core and the inside wall of the bearing sleeve there is arranged in at least one of the chambers an inflexible, hydraulically supported displacement element. In the unloaded state, this displacement element is at a predetermined distance from a reference surface. Between the displacement element and a component bearing the latter there is formed a displacement chamber of small height between the displacement surfaces, the displacement chamber being in communication with one of the further chambers via at least one throttling orifice.

Abstract: A compliance unit (8) for use in an hydraulic braking system is disclosed which is adapted to absorb hydraulic fluid from a master cylinder (1) during normal braking and, in the event that a fault in the braking system is detected the unit is adapted to return fluid to the master cylinder (1). The compliance unit (8) therefore effectively decreases its compliance in the event of a fault. The unit (8) may comprise a pair of pistons (14, 15) working in a stepped bore against a first and second biasing force, with a third variable biasing force provided to cancel out the second biasing force during normal operation to provide an increased compliance.

Abstract: An anti-theft system prevents release of the brakes of a tractor/trailer land vehicle after the manual brake control has been set and after the anti-theft system has been activated. With the anti-theft system activated, any attempt to release the brakes of the vehicle will not be successful and will activate an alarm. The anti-theft system cannot be activated until after the manually operated brake control has been activated. The anti-theft system can be applied to the brakes of either or both the tractor and/or the trailer of the vehicle.

Abstract: A pressure controlling device for vehicle comprising a control unit having a plurality of electromagnetic portions, an electronic circuit portion provided in a housing and a conductive connecting member for electrically connecting these, an actuator unit having a plurality of valve bodies and a network of pressure path, wherein the plurality of valve bodies are protruded so as to be inserted in the plurality of electromagnetic coil portions in the control unit respectively; and the electromagnetic coil portions are formed by a bobbin with coil, an upper yoke and a lower yoke for fabricating a magnetic path and an elastic object provided between the lower yoke and the bobbin and a means for contacting the bobbin to a part of the housing in order to restrict movement of the bobbin, whereby a stress applied to an electrically connecting portion in the electromagnetic portions caused by engagement and separation between the control unit portion and the actuator unit can be relaxed.

Abstract: An anti-skid control system includes a hydraulic pressure generator for generating hydraulic brake pressure, hydraulic pressure control valves which control the brake hydraulic pressure of the wheel cylinders, wheel speed sensors for detecting the rotational speed of the wheels, and a controller for controlling the hydraulic pressure control valves to decompress or pulse-boost the brake hydraulic pressure in the wheel cylinders based on the output signal of the wheel speed sensors. A brake pedal depression amount detecting device detects the amount of depression of the brake pedal. The controller includes a road surface change judging device for judging that the road surface has shifted from a surface having a low coefficient of friction to a surface having a high coefficient of friction when a continuous run pulse number or a continuous run time of the pulse boost control exceeds a preset value.

Abstract: A piston rod is supported free to slide without using a guide bush so that there is no risk of the guide bush falling out. Also, costs are reduced and oil leakage is prevented by eliminating additional procedures such as caulking. The piston rod, which has excellent durability, is allowed to slide smoothly over a long period of time without generating noise. For this purpose, in a bearing unit for a single cylinder type hydraulic damper or gas spring, or a multi-cylinder type hydraulic damper comprising seal members 55, 56, 57 and 64, and a rod guide 6, the rod guide 6 comprises a cylindrical engaging part 13 which engages with a cylinder 2, a cylindrical bearing part 16 which guides a piston rod 5, and a bearing layer 15 fixed to the inner circumferential surface of the cylindrical bearing which slides on the outer surface of the piston rod.