Abstract: A gas spring suspension system is configured to replace a factory-installed leaf spring-based suspension system of an automobile. The gas spring suspension system connects to the vehicle frame using the same first and second frame mounts to which the leaf spring was originally attached. The gas spring suspension system has a linkage assembly with a first link that pivotably attaches to the first frame mount and a second link that pivotably attaches to the second frame mount. The first and second links are pivotably attached to one another. A connector portion, which can be part of the first or second link, or supported therebetween, supports the vehicle axle. A gas spring is supported by the linkage assembly and is positioned operatively between the first and second links so that as the axle moves during vehicle operation, loads are communicated to the spring, and through the linkage to the first and second frame mounts.

Abstract: A volume adjustable air chamber for a shock assembly is disclosed herein. The adjustable air chamber assembly includes a first air chamber and a second air chamber in fluid communication via a flow path. A check valve is coupled with the flow path, the check valve that allows the second air chamber to be fluidly coupled with or fluidly isolated from the first air chamber, such that the available volume of air for said first air chamber can be modified to provide different damping characteristics.

Abstract: An electronic parking brake system including: an electronic parking brake provided to generate a clamping force on a wheel of a vehicle; and a controller configured to estimate a weight of the vehicle based on a wheel pressure and a longitudinal acceleration of the vehicle at a time of service braking during driving, determine a clamping force required for parking based on the estimated weight of the vehicle during a parking operation, and operate the electronic parking brake to generate the determined clamping force.

Abstract: A spring for a check valve which can be used in particular in controllable vibration dampers, said spring comprising a flat main body with a first surface, a second surface and a centre point, and two or more spring arms, which cooperate resiliently with the main body and in the unloaded state protrude from the first surface or the second surface, the spring arms forming a free end and having a longitudinal axis that runs through the free end and tangentially to a circle about the centre point of the main body. The invention further relates to a check valve having a spring of this kind. In addition, the invention relates to a controllable vibration damper which comprises such a check valve, and to a motor vehicle having a controllable vibration damper of this kind.

Abstract: A compressed-air braking system (DBA*) for a motor vehicle, includes a compressed-air supply device (1) with a compressor (2) and several brake circuits which are connected to the compressed-air supply device (1) via a multi-circuit protection valve (7) and include at least one parking brake circuit with parking brake cylinders (25.1, 25.2). In order to reduce the operating noise of the compressed-air braking system (DBA*) occurring in particular on venting of the parking brake cylinders (25.1, 25.2), it is provided that the parking brake cylinders (25.1, 25.2) can be vented, per wheel or per vehicle axle, alternately either to the surrounding atmosphere or into an additional reservoir (31) via a respective quick-venting valve (29) connected to a connecting line (28) and a changeover valve (30) arranged downstream thereof.

Abstract: The present embodiment generally relates to a mechanical assembly which modifies and enhances the performance of a critical portion of the parts which comprise an air spring assembly. A key element common with an air spring assembly is the precharge chamber. This chamber is filled at the factory with compressed gas and along with a floating piston and a piston rod, creates the basic air spring assembly. Although this is a sealed chamber, the potential for air leakage is well documented. The inability to maintain the design gas pressure in the precharge chamber requires the chamber to initially be overcharged to remain functional even with the slow loss of air charge. The present invention demonstrates how the precharge assembly found in all such air springs can be modified and, with the addition of a few parts, be capable of maintaining the precharge pressure at an optimum level.

Abstract: An object of the present invention is to appropriately control a clearance amount by correcting an estimation error of a contact position caused by a delay time difference between output signals of sensors, and to establish both improvement of fuel efficiency due to prevention of drag of a brake pad during non-braking and reduction in response time during braking. A brake system includes a brake disc, a brake pad, a piston, a drive mechanism, a position sensor that detects a position of the piston, a thrust sensor that detects a thrust by which the brake pad presses the brake disc, and a brake control unit that adjusts a braking force by controlling the drive mechanism.

Abstract: An electro-hydraulic brake assembly comprises a hydraulic control unit (HCU) body having a top surface and a bottom surface opposite the top surface and defining a master cylinder bore and a pressure supply bore. A fluid reservoir is disposed on the top surface. A primary piston is slidably disposed in the master cylinder bore and configured to supply brake fluid to a wheel brake in response to pressing of a brake pedal. A pressure supply unit includes: a pressure supply piston disposed within the pressure supply bore; a motor located on the bottom surface of the HCU body and having a motor shaft. An actuator mechanism includes a threaded shaft configured to be rotated by the motor shaft, and a nut coupled to the pressure supply piston, together causing the pressure supply piston to translate linearly through the pressure supply bore in response to rotation of the motor shaft.

Abstract: A brake (200) comprising a braking surface (202); a brake lever (206) arranged to move between a retracted position and an engaged position; a brake lining (210) and at least one non-contact sensor (212). The brake lining is disposed between the braking surface and the brake lever such that when the brake lever is in the engaged position the brake lining is in contact with the braking surface. The at least one non-contact sensor is arranged to output a signal dependent on the distance between the non-contact sensor and the braking surface.

Abstract: There is provided a vibration damping material capable of exhibiting excellent vibration damping performance and of reducing its own weight while having high rigidity. The vibration damping material of the present invention used so as to be installed on a panel of a vehicle includes a viscoelastic layer and a constraining layer provided on one surface of the viscoelastic layer, wherein a relationship between a strain ?a and a strain ?b is 0<?a/?b<1, the strain ?a being a strain on a surface of the constraining layer on the opposite side to the viscoelastic layer, and the strain ?b being a strain on a surface of the constraining layer on a side in contact with the viscoelastic layer.

Abstract: In a vibration isolator of the present invention, an orifice passage (24) configured to allow a main liquid chamber (14) and an auxiliary liquid chamber (15) to communicate with each other, a plurality of first communication holes (42a) configured to allow the main liquid chamber and an accommodation chamber (42) to communicate with each other, and a second communication hole (42b) configured to allow the auxiliary liquid chamber and the accommodation chamber to communicate with each other are formed in a partition member (16), a tubular member (21) that protrudes in an axial direction toward an elastic body is formed on a first wall surface (16b) of the partition member in which the first communication holes are opened and which constitutes part of an inner surface of the main liquid chamber, and the plurality of first communication holes are opened in both of an inner portion (16f) of the first wall surface positioned inside the tubular member and an outer portion (16g) of the first wall surface positioned

Abstract: A method and apparatus for a vehicle suspension system gas spring. In one embodiment, a vehicle suspension system gas spring includes a compressible main gas chamber and an additional volume combinable with the main chamber to change a gas spring rate of the system. In one embodiment, a low friction piston seal is created by a flexible seal member.

Abstract: A system and method of accurately evaluating the performance of a vehicle device having a friction component, including a brake disc, a clutch disc, or the like, may be achieved by predicting the accurate friction coefficient of the friction component in consideration of changes in the temperature, rotation speed, and hydraulic pressure of the friction component, and determining the operating torque of the vehicle device or system having the friction component through reflecting the predicted friction coefficient, during the performance evaluation simulation process of the vehicle device including the friction component.

Abstract: An electrohydraulic brake apparatus includes: a reservoir; a stroke sensor; a plurality of wheel brake assemblies; a main master cylinder; an electric booster; an electronic stability control system; and an electronic control unit configured to control the ESC system so that a fluid pressure supplied to the ESC system brakes only part of the plurality of wheel brake assemblies when the pedaling amount is less than or equal to a first reference, and to control the ESC system so that the fluid pressure supplied to the ESC system brakes all of the plurality of wheels brake assemblies when the pedaling amount is greater than the first reference.

Abstract: A normally closed disc clamp system includes a housing with a rotating disc, a brake ring and a pressure-enhancing ring arranged therein. When only a first chamber is supplied with fluid, the fluid pushes the brake ring to release the rotating disc. When only a second chamber is fed with fluid, the fluid pushes the brake ring to keep the rotating disc in the braking state, and pushes the pressure-enhancing ring to compress an elastic unit. The energy generated by the compression of the elastic unit acts on the brake ring through the fluid, so that the brake ring achieves a double pressurization effect. If the action of the fluid fails, the brake ring can still provide a braking effect to the rotating disc through the elastic unit to improve operational safety. Further, the present invention further provides a rotating table using the normally closed disc clamp system.

Abstract: Disclosed is an electronic brake system that includes a master cylinder unit including a master cylinder to which a master cylinder reservoir coupled to generate a hydraulic pressure, a hydraulic block provided with a hydraulic pressure supply device to generate the hydraulic pressure by an electrical signal outputted in response to a displacement of a brake pedal and a hydraulic control unit to transmit the hydraulic pressure discharged from the hydraulic pressure supply device to wheel cylinders provided in each wheel, and disposed to be separated from the master cylinder unit, a hydraulic block reservoir coupled to the hydraulic block, and a connection hose to connect the master cylinder reservoir and the hydraulic block reservoir.

Abstract: A wideband vibration suppression device utilizing properties of a sonic black hole, comprising: a vibration absorber (101) comprising a uniform portion (1011) of a fixed thickness and a conical portion (1012) integrally connected to the uniform portion (1011), the conical portion (1012) extending from the junction in such a manner that the thickness thereof gradually decreases from the thickness (d1) of the uniform portion (1011) to a predetermined thickness (d2); and a damping layer (102) attached to the conical portion (1012) of the vibration absorber (101).

Abstract: A vibration damper comprising a working cylinder, which is subdivided by an axially movable piston on a piston rod into a first and a second working chamber filled with a damping medium is disclosed. The vibration damper has at least one compensating reservoir for receiving the damping medium displaced by the piston rod. There is a flow connection between the two working chambers, in which connection there is incorporated a pump assembly. The pump assembly has a fluctuation in the delivery volume with a constant power supply. At least one pulsation accumulator is arranged within the flow connection, wherein the volume and spring rate of the pulsation accumulator are matched to a frequency of a fluctuation of the delivery volume of the pump assembly.

Abstract: In human-powered vehicles, e.g., bicycles, etc., it is customary to use drum brakes, disc brakes or shoe brakes. Each of the braking systems has different advantages in terms of braking effect, system costs, ease of maintenance, etc. A brake unit with a modified structure for a vehicle is provided. For this purpose, a brake unit 14 for a vehicle 1 is disclosed, having a housing 15, having a brake body device 23, wherein the brake body device 23 supports a stationary brake partner of a brake apparatus 12 for the vehicle 1, wherein the housing 15 and/or the brake body device 23 defines a main axis H, having an actuator for moving the brake body device relative to the housing 15 in order to generate a braking force, wherein the stationary brake partner is formed as a brake disc 13.

Abstract: A disc brake device in which a moment acts on a pad in a direction in which a rotation-in side portion is pushed up toward a radially outer side during braking, including the pad including a pin insertion portion and a clip insertion portion, a pad support member, including a pin inserted into the pin insertion portion in an axial direction, and supporting the pad so that the pad is movable in the axial direction, and a pad clip, including a pad pressing portion inserted into the clip insertion portion in the axial direction, and configured to press the pad radially outward. The pad clip is configured to apply a pressing force to the pad so that a radially inner side portion of an inner peripheral surface of the pin insertion portion is pressed against a radially inner side portion of the pin.