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: 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: 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: 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: 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: A damper device that suppresses arc discharge between electrodes generated by bubbles in an electro-rheological fluid, includes an inner tube housed in an outer tube forming an outer shell of a damper device. An electrode tube is arranged between the outer tube and the inner tube. An electro-rheological fluid is sealed in the outer tube. The inner tube and the electrode tube constitute a cathode and an anode, respectively, and apply a voltage to the electro-rheological fluid located between the inner tube and the electrode tube. An insulating layer is provided on a surface of the electrode tube on a side facing the inner tube or on a surface of the inner tube on a side facing the electrode tube. When a maximum voltage applied to the electro-rheological fluid is Vmax (V), a thickness t (m) of the insulating layer is set to satisfy Formula (1).

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: 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: An electromagnetically switchable brake, preferably spring-loaded brake, comprising at least one coil carrier (3) and at least one armature plate (1), wherein the axial distance of the coil carrier and armature plate relative to out another is variable, comprising at least one rotor (7) or at least one hub of a shaft to be braked, and comprising damping members arranged between the armature plate (1) and coil carrier (3), between the end faces of the coil carrier (3) and armature plate (1) which face one another. It is considered to be novel and inventive that the solid body of coil carrier (3) and/or armature plate (1) has an integral damper structure (D), which is composed of an least one elastic tab (12) and a foot (13), the elastic tab (12) being an integral part of the solid body of the armature plate (1) or of the coil carrier (3) (FIG. 1.1).

Abstract: A suspension device includes a damper. The damper includes: an outer cylinder; a ball screw housed in the outer cylinder; a fastening member that supports the ball screw inserted therethrough and is attached to an end part of the outer cylinder; and a fixing member that is attached to an end part of the ball screw and fixes the ball screw to the fastening member. An insertion portion, where the ball screw is inserted into the fastening member, is provided with a fitting portion where the ball screw fits the fastening member, and the fitting portion has a spline fitting structure.

Abstract: A vibration damping device including a vibration-damping device main unit inserted into a mounting space of a bracket from a lateral side and securely supported by the bracket. The bracket includes engaging pieces on respective opposed inside faces of the mounting space, and engaging action of the engaging pieces with respect to respective detent engaging faces formed on a fixture member of the vibration-damping device main unit prevents the vibration-damping device main unit from becoming dislodged from the mounting space of the bracket. Opposed walls of the mounting space are each penetrated by an aperture window, and inspection flat surfaces are separately provided to an outside surface of each engaging piece visible from an outside through the aperture window and a corresponding external side surface of the bracket that is off the aperture window. The inspection flat surfaces are parallel to each other.

Abstract: Methods and apparatus of a system for vehicles comprising a vehicle suspension, a sensor operable to measure an operational characteristic of the vehicle suspension, and a processor in communication with the sensor that is operable to suggest an operational setting of the vehicle suspension in response to an input from the sensor corresponding to the operational characteristic. A method for adjusting a suspension of a vehicle may comprise receiving suspension data with a processor, calculating a suspension setting suggestion with the processor, communicating the suspension setting suggestion to a user interface device, and adjusting the suspension based on the suspension setting suggestion.

Abstract: An electric parking brake actuator mounting assembly includes a brake backplate of a drum brake, having a rear surface opposite to a front surface configured to be facing a brake drum when the brake backplate is mounted on a motor vehicle, wherein the rear surface of the brake backplate includes a support base configured to receive a pull spindle of an electromechanical actuator, a supporting bracket including at least one coupling plate, configured to be attached to the rear surface of the brake backplate, and an actuator mounting surface configured to be coupled to and support the electromechanical actuator, wherein the actuator mounting surface includes a spindle seat, configured to receive the pull spindle of the electromechanical actuator, and a pin lock seat, configured to receive and lock an engagement pin of the electromechanical actuator.

Abstract: A shock absorber includes a compensator and a variable volume chamber. The compensator contains a compressible fluid and the variable volume chamber contains a substantially incompressible fluid. During a compression stroke, an increase in the volume of the incompressible fluid in the variable volume chamber compresses the compensator and thereby increases the available volume in the variable volume chamber.

Abstract: A dampener for an exit device may be disposed between a portion of an exit device actuator and an exit device chassis so that the dampener dampens vibrations to reduce noise of the exit device and/or inhibit unintentional movement of the actuator to an actuated position. The dampener may be composed at least partially of a viscoelastic material.

Abstract: A shock absorber for a vehicle includes a pressure tube containing a hydraulic fluid. The shock absorber further includes a piston rod extending within the pressure tube along a longitudinal axis, and including a piston end disposed within the pressure tube. The piston rod includes a rod chamber defined within the piston rod and extending along the longitudinal axis from an upper chamber end distal to the piston end to a lower chamber end proximal to the piston end. The piston rod further includes at least one first opening disposed proximal to the lower chamber end. The shock absorber further includes a first piston assembly, an auxiliary housing, and a damper assembly including a sleeve received within the rod chamber.

Abstract: A damper including inner and outer tubes is provided. A piston is slidably disposed within the inner tube. An intermediate tube is positioned radially between the inner and outer tubes. The intermediate tube extends between first and second intermediate tube ends. An intermediate channel is disposed radially between the intermediate and inner tubes. A slanted elliptical seal is positioned inside the intermediate channel and divides the intermediate channel into first and second intermediate channel portions. A first control valve is in fluid communication with the second intermediate channel portion via a first intermediate tube opening. A second control valve is in fluid communication with the first intermediate channel portion via a second intermediate tube opening. The slanted elliptical seal abuts the intermediate tube between the first intermediate tube opening and the first intermediate tube end and between the second intermediate tube opening and the second intermediate tube end.