2045 results about "Air spring" patented technology

To improve operability for vehicle height adjustment, while ensuring safety, in a vehicle such as a truck, a wireless remote control radio-transmits a vehicle height adjusting signal tagged with a remote control identification code. The remote control identification code is preregistered in a receiver, which, upon receipt of the vehicle height adjusting signal tagged with the remote control identification code, takes in the vehicle height adjusting signal. According to information contained in the received vehicle height adjusting signal, an air suspension ECU controls supply and discharge of compressed air for air springs to adjust the vehicle height. When an emergency operation switch is operated, the vehicle height adjusting signal from the wireless remote control is disabled, and vehicle height adjustment is preferentially made based on a switching signal from the emergency operation switch.

The present invention relates to an air suspension and an electronically controlled suspension system. An electronically controlled suspension system of the present invention comprises an air suspension including a volume expander connected to a pressure acting volume of an air spring to expand the pressure acting volume, and a volume control valve for opening or closing the connection between the pressure acting volume and the volume expander; a mode-changing switch for applying a mode-setting key signal according to a driver's button operation; an electronic control unit for outputting a valve control signal for use in exhibiting a suspension characteristic of the vehicle in response to the mode-setting key signal from the mode-changing switch; and an air spring volume adjustor for controlling a spring rate of the air spring through adjustment of the pressure acting volume of the air spring by opening or closing the volume control valve in response to the valve control signal from the electronic control valve, thereby forcibly setting the suspension characteristic of the vehicle. The present invention is to control a spring rate of an air spring employed in an air suspension to a range of damping force characteristics of a relevant mode by selectively controlling a pressure acting volume of the air spring using a fast response valve in response to a signal corresponding to a driver's mode-changing operation. Thus, during sudden braking, rapid acceleration or cornering, a driver can conveniently change characteristics of a vehicle mounted with the air suspension by operating a button within the vehicle, resulting in maximization of consumers' satisfaction.

A piston assembly for an air spring includes an outer shell and a structural insert. The outer shell includes a side wall and an end wall at least partially defining a shell cavity having an open end. The structural insert is received in the shell cavity and includes a central portion and a plurality of support walls extending outwardly from the central portion toward the side wall of the outer shell. The central portion includes first and second opposing ends with the first end disposed toward the end wall of the outer shell and the second end disposed toward the open end of the outer shell. An air spring assembly includes such a piston assembly. A method of manufacturing an air spring assembly is also included.

An air spring assembly includes a primary airbag mounted to a piston air bag such that the piston airbag provides a rolling surface for the primary airbag. A change in the piston airbag pressure changes the effective rate of the primary air spring. A relatively small change in the piston airbag volume provides a change in the spring rate of air spring assembly as the diameter of the rolloff surface is selectively modified.

An operating module for localized signal processing at a corner of a vehicle includes a housing, a valve assembly or a sensor, and a signal processing device. The operating module can be used in operative association with an air spring assembly. The operating module can be in communication with other components and/or systems. A vehicle suspension system and method are also discussed.

An assist device that applies an auxiliary driving force to a joint in parallel with a driving force of a joint actuator between a thigh portion and a crus portion, which are a pair of link members of a leg. The assist device generates the auxiliary driving force by use of spring device, such as a solid spring or an air spring. A member supporting a rod member connected to the spring device is provided with a device for transmitting a bending and stretching motion of the leg at the joint (a relative displacement motion between the thigh portion and the crus portion) to the spring device to generate an elastic force of the spring device, and for discontinuing the transmission of the bending and stretching motion to the spring device. This transmitting device is controlled in accordance with a gait of a robot. Thus, a burden on the joint actuator is reduced where necessary and favorable utilization efficiency of energy can be stably ensured.

The invention belongs to the field of rail traffic and relates to a U-shaped rail double-safety running and levitation driving energy-saving mechanism which is suitable for low-medium-speed maglev train double-safety running and levitation driving energy saving. The mechanism is composed of a U-shaped rail 1, a self-locking hydraulic traveling wheel mechanism 2, a connecting frame 3, a train body 4, an air spring 5, a bogie arm 6, a spindle 7, an aluminum sensing plate 8 and levitation magnets 9. By designing a U-shaped rail structure, production efficiency of the U-shaped rail is improved, roller consumption in hot rolling production is reduced, and production cost is lowered. By combining the U-shaped rail structure with the self-locking hydraulic traveling wheel mechanism, a maglev train is enabled to have a magnetic levitation and rubber wheel double-safety running mechanism, levitation-starting energy consumption of the maglev train is reduced remarkably, traction levitation energy consumption is reduced by 10-15%, and energy-saving effect is obvious. Running safety and accident emergency response capability are improved remarkably, and when a full-levitation system is in a failure, driven by a linear motor, a rubber wheel supporting train still can safely get to a target station.

The invention discloses a precise leveling system of a vibration isolation foundation bed. The lower bottom surface of the vibration isolation foundation bed is supported by air springs; a precise optical vibration isolation platform is arranged on the vibration isolation foundation bed; one or two level monitors are arranged on the precise optical vibration isolation platform for measuring an included angle between the vibration isolation platform and the absolute level in two mutually vertical directions; flexible leg monitoring devices are respectively connected with the own air springs; the output ends of the level monitors and the flexible leg monitoring devices are respectively connected with the input ends of controllers; the output ends of the controllers are connected with all control valves; an air channel port of each control valve is respectively connected with the own air spring; air supplying devices respectively supply air for each control valve. The precise leveling system realizes vibration isolation of Grade II; the vibration isolation platform has highly precise planarity and meets requirements of various precision instruments for the environment; the control valves realize the air inflow of a small amount during the charging process of the air springs, improve leveling precision and can keep the system stable. The precise leveling system is applicable to ultra precise measurement and processing.

The F track running structure has its suspension running frame made of two parallel vertical beam and anti side rolling module, through four corners installed support arm linked to form the rectangular suspension running frame module, suspension electromagnetic iron connected with support arm at both sides vertically, each has emergency rescue wheel supported by the hydraulic cylinder, sliding platform connected through the steel cable and the support arm with inner side having forcing guide device through the installation base, combining several assembled suspension running frame modules together. It ensures the train follow F track all the time through air spring, side rolling resistance, horizontal block device, forced guide device to realize the movement decoupling. It reduces the vibration from the track and the system itself, applies to all kinds of specified geometrical torque and unsmoothness, greatly reduced in vehicle noise. It has flexible line selection, low in noise, low in cost, applicable for running between stations.

A shock-absorbing platform includes a bottom plate and a top plate joined to one another along at least two sides by elongate rigid links that enable the plates to remain in parallel relation to one another as the plates are displaced responsive to externally-imparted forces. An air spring resists relative vertical motion between the bottom and top plates as external forces are applied to the platform. A shock-absorbing damper damps the natural oscillation of the air spring. The resistance presented by the air spring is adjustable through an inlet and outlet port in fluid communication with a remote source of air under pressure. In a second embodiment, a seat bottom includes arched leaf springs that supplant the air spring to increase the range of relative movement between the top and bottom plates and to lower the profile of the seat bottom.

A hand-held power tool (1) includes a linear motor (2) having a rotor (3) which is movable along a percussion axis (A) in an axially limited manner between two reversal points (W) and which can be driven by the striking piston (5) of the power tool with the intermediary of an air spring (4), sensors designed for determining the actual state of the rotor (3) and connected to a computer (9) connected via power electronics (33) to at least one field coil (10) of the linear motor (2), with the rotor (3) being displaced against a contact element (11a, 11b) at least at one reversal point (W) and being pressed against the contact element electromagnetically; and a control process for the hand-held power tool.

The invention discloses a shock absorbing system with a combined rigidity and damping adjusting function and a shock absorbing method. An air spring with an additional air chamber and a magnetorheological shock absorber which are connected in parallel are arranged between an upper connecting plate of a suspension frame and a bottom plate of the suspension frame; and the air spring is connected with the additional air chamber via a positioning control valve. The shock absorbing method comprises the following steps that a controller performs Fourier transformation on automobile body response acceleration time domain signals at a specified time interval, and outputs control signals to the positioning control valve according to the biggest excitation frequency of vertical energy, the opening of an orifice between the air spring and the additional air chamber is controlled and adjusted in real time, so that the rigidity of the suspension frame is changed, the purpose of avoiding the excitation frequency is achieved, the damping of the suspension frame is adjusted by changing input current of the magnetorheological shock absorber, and shock is attenuated further. The combined rigidity and damping adjusting function can be realized, an adjusting range is expanded, the shock absorbing system adapts to complex and changeable running work conditions of automobiles, and the shock absorbing property is increased.

The invention discloses a control method for a vehicle air suspension; the invention takes the electric control device of a hardware part as the core and is configured with components such as various external sensors, an air spring, an air valve, and an adjustable shock absorber, and the like; the software part comprises signal detection, data processing and secondary calculation, a control method and control output; and firstly different working models are judged by calculating the variance of the input vehicle body height and the vehicle speed; open-loop control and a neural network are used for realizing online self-correction function; the electric control device controls the implementation of the air valve according to the air charge and discharge time which is obtained by the neural network, and then the air molar concentration and the deviation quantity in the spring are obtained by calculation; and finally a detail control signal is obtained. The control method causes the vehicles to be controlled flexibly under different pavement conditions, has appropriate flexibility and damping performance under various road conditions, effectively solves the conflicts when parameters are matched to be suitable for various road conditions, and improves the handling performance, the safety, the comfort and the off-road performance of the vehicles.

An air spring for a heavy-duty vehicle axle/suspension system includes a bellows chamber operatively connected to a piston chamber. An opening is disposed between the bellows chamber and the piston chamber in order to allow fluid to communicate between the bellows chamber and the piston chamber. The cross-sectional area of the opening and the volumes of the bellows chamber and the piston chamber are tuned in order to optimize the damping characteristics of the air spring.

An air spring device includes an air spring (4) wherein gas is filled in an interior defined by an upper face plate (1), a lower face plate (2), as well as a cylindrical flexible diaphragm body (3) having opposite ends gas-tightly connected to the upper and lower face plates (1, 2), respectively. Between the lower face plate (2) and a lower supporting plate (8) spaced downward therefrom, a shear spring means (5) and a compression spring means (6) are series-connected, which are made mainly of rubber material. When a vertical load is applied to the air spring device, the shear spring means (5) and the compression spring means (6) are subjected mainly to shearing deformation and compressive deformation, respectively. The air spring device further includes an abutment member (10) allowing the compression spring means (6) to support the load in place of the shear spring means (5), after the deformation amount of the shear spring means (5) reaches a predetermined level.

The invention pertains to the technical field of precision damping, and is a heavy-load precision damper and a damping system comprising thereof. The damper comprises a low-rigidity air spring with variable damp, an inverted-pendulum structure with low horizontal rigidity and a group of three-degree-of-freedom active damping actuators. The structure of the air spring is external-internal annularity double air chambers communicated with a throttling hole; the inverted-pendulum structure comprises a main supporting rod and at least two flexible swing rods and is located in an annular air chamber; and the active damping actuator comprises three linear motors arranged in an orthogonal manner. The heavy-load precision damper vertically generates large bearing force by the air spring, respectively separates vertical and horizontal vibration transmission by the air spring and the inverted-pendulum structure, and actively controls the damp vibration by acting force of the vertical and horizontal linear motors. The damping system comprises at least three heavy-load precision dampers arranged in the shape of a polygon, and realizes six-degree-of-freedom precision damping of a vibration-isolation device by the mutual action of every heavy-load precision dampers.

A lift-type axle/suspension system of a heavy-duty vehicle includes ride air springs for providing vehicle load support when the system is lowered, and one or more lift air springs for selectively raising the system when such additional load support is unnecessary or when greater vehicle maneuverability is desired. An apparatus integrates and simultaneously controls the operating systems for the lift and ride air springs. The control apparatus includes a plurality of conduits and valves which enable pressurized air from the lift air springs to be rapidly provided to the ride air springs when the system is being lowered. The additional air supplements the normal source of air from the vehicle compressed air source to ensure sufficient and timely air for smooth and efficient operation of the ride air springs without excessive buckling or folding, thus maintaining adequate overall vehicle air pressure needed for operating other vehicle components.

The invention discloses a battery protection device for a new energy automobile. The battery protection device comprises a protection box, wherein a protection cover corresponding to the protection box is arranged on the top part of the protection box; a battery is arranged in the protection box; a line interface is formed in the left side of the bottom part of the protection box; grooves are formed in the inner wall of the protection box; a vertical damping protection plate is arranged in each groove; a plurality of uniformly distributed air springs are arranged at one side, far away from the battery, of each damping protection plate; one ends, far away from the damping protection plate, of the air springs are connected with the inner wall of the corresponding groove; a telescopic main pipe is arranged at one side, close to the battery, of each damping protection plate. According to the battery protection device for the new energy automobile, the impact force generated in a horizontal direction can be effectively eliminated, so that an effect of effectively protecting the battery is achieved, and the battery can be effectively protected; the impact force generated in a vertical direction can be effectively eliminated, so that the battery can be effectively protected.

The invention discloses a test bench of the comprehensive performance of an air spring, and belongs to the technical field of vehicle engineering. The test bench can effectively achieve the aims of carrying out the vertical, transverse and twisting tests of the air spring at the same time and simulating the actual working states of the air spring. A rack of the test bench is in a four stand column type, a bearing platform is arranged in the middle of the rack, a device for bearing balance weight is arranged above the rack, a sensor is arranged below the rack, each stand column of the rack is provided with a cone-shaped fixing nut, a vertical hydraulic actuator which is arranged in a plane triangle mode is arranged below a workbench, and the volume of an additional air chamber is adjustable. The influence to the dynamics performance of the air spring by regional environment with different temperatures can be simulated by an external air conditioner system, multi-dimensional simulation is applied to the air spring through a shock excitation source, changes of loads and deflection of the air spring under the conditions with different environment temperatures and physical parameters are measured, and parameters such as dynamic stiffness, static stiffness, damping ratio and transfer ratio of the air spring are calculated through parameters of vibration characteristics. The test bench is mainly used for testing the comprehensive performance of the air spring.

A pneumatic proportioning system for heavy-duty vehicle air springs includes an air supply, a height control valve and a solenoid valve in fluid communication with one another and with the air springs of at least one axle/suspension systems of a heavy-duty vehicle. A proportioning means is in fluid communication with the air supply, with the height control valve, with the solenoid valve, with the air springs and with atmosphere and operates to proportion loads between the air springs of the axle/suspension systems when the solenoid valve is activated during operation of the heavy-duty vehicle.

An air spring mount includes an elastomeric member coupled to at least one support plate to define a pressurizable chamber. The support plate has a snap-in-place attachment comprising a mounting stud projecting perpendicularly from the plate, and three resilient fingers spaced around the periphery of the stud. Barbs disposed in terminal ends of the fingers are biased outwardly by the fingers to engage a mounting bracket to which the air spring is mounted, when the attachment is inserted through a hole formed in the mounting bracket.

According to problem solving means of the present invention, in a suspension device (S) comprising a motion transforming mechanism (T) for transforming a linear motion of a linear motion member (1) into a rotational motion of a rotating member (2) and a motor (M) connected to the rotating member (2) in the motion transforming mechanism (T), an air spring (AS) is provided, the air spring (AS) including a tubular air chamber (22) connected to the motor (M), an air piston (37) connected to the linear motion member (1) and being tubular and smaller in diameter than the air chamber (22), and a diaphragm (27) interposed between the air chamber (22) and the air piston (37), a stopper (38a) is provided on an outer periphery of the air piston (37), and a stopper seat (46) is provided on an inner periphery of the air chamber (22) so as to be put in abutment against the stopper (38a) upon maximum extension of the suspension device involving relative separation of the air chamber (22) and the air piston (37) with respect to each other.

The invention provides a brake control device for railway carriages. The brake control device comprises a brake air cylinder, a brake controller, an electric pneumatic change-over valve, a relay valve, an emergency electromagnetic valve, a load adjustment valve, a brake two-way valve, a distribution valve and a working air cylinder, wherein the brake controller outputs a current signal for to the electric pneumatic change-over valve; the electric pneumatic change-over valve converts the current signal into a pilot control pressure signal and then sends to a first pressure input port of the relay valve; the relay valve performs flow amplification on the pilot control pressure signal and inputs a brake cylinder pipe; two pressure input ports of the brake two-way valve are respectively connected with pressure output ports of the emergency electromagnetic valve and the distribution valve through pipelines; the pressure input port of the brake two-way valve is connected with a second pressure input port of the relay valve through the load adjustment valve; and an adjustment signal input port of the load adjustment valve is communicated with two air springs. According to the brake control device, a microcomputer controlled direct electric pneumatic brake system and an air automatic brake system are integrated. Under normal conditions, the direct system is used; and the automatic system is taken as a safe brake method to satisfy rescue and loopback requirements.

The present invention generally relates to providing an air supply for components associated with an engine. More particularly, the present invention relates to a system and method for using compressed air generated by a split-cycle engine to power components such as valves or air springs associated with the split-cycle engine.

The invention discloses an air brake system for an automatic program management (APM) vehicle. In order to solve the problems that an existing air brake system does not have the functions of brake control, brake monitoring and fault diagnosis, the air brake system for the APM vehicle comprises an air supply module, an air control module, a brake control module, a basic brake device air circuit control module, an air spring air circuit control module, and an uncoupling and vehicle connection pipeline control module. Compared with the prior art, the air brake system has more flexible brake cylinder pressure regulating capability, and better control precision and function extensibility.

The invention discloses a maglev bogie fatigue test loading device, which comprises a testing platform base, a support base, an air spring support, a loading power part used for loading a bogie according to a requirement, and a load transfer device arranged between the loading power part and the bogie, wherein the testing platform base is fixed on the ground; the support base is fixed on the testing platform base; the lower end of the air spring support is pivoted with the support base through a pin roll; the extension direction of the axis of the pin roll is parallel to the front-back direction of the bogie; the upper end of the air spring support is connected with an air spring connecting seat of the bogie; and a horizontal pull rod connecting seat is arranged on the side of the supportbase, and is connected with a side-rolling resistant beam of the bogie through a horizontal pull rod. The maglev bogie fatigue test loading device can well simulate the fatigue load on the bogie, andaccurately test the fatigue property of the bogie.

The invention discloses an interlinked air suspension control device, system and method. The pinterlinked air suspension control device comprises an air suspension system, air spring shock absorbers and the interlinked air suspension control system. Each air spring shock absorber comprises a lifting lug, a lower lifting lug, rubber capsule skin, an air spring cavity, an upper air spring shock absorber cavity, a lower air spring shock absorber cavity, a piston, a first one-way valve and a shock absorber outer wall, wherein the lifting lug is connected to the upper portion of the air spring cavity, the rubber capsule skin is arranged on the periphery of the air spring cavity, the upper air spring shock absorber cavity is located on the lower portion of the air spring cavity, the one-way valve is located on the piston, and the lower air spring shock absorber cavity is located below the piston. According to the interlinked air suspension control device, system and method, the semi-active suspension technology is introduced into the interlinked air suspension technology, the effects of adjusting the vehicle sidesway characteristic and the vehicle pitching characteristic can be achieved by greatly improving the optional interlinked mode of interlinked air suspensions, and thus the riding comfort of a vehicle can be further improved while the performance of steering, starting and braking of the vehicle is met.

An air spring piston for a heavy-duty vehicle includes a top portion and a bottom portion. The top portion includes a bumper and a connecting means for an air spring bellows. The bottom portion is mounted on a structure of the vehicle. The top portion and bottom portion are connected to each other to form a piston chamber and include a bearing means for reacting bumper forces from the bumper to the bottom portion and to the structure of the vehicle on which the bottom portion is mounted. The piston chamber is in fluid communication with a bellows chamber of the air spring via an opening, wherein the geometry of the opening is such that during dynamic spring movements, the pressure in the piston chamber and the pressure in the bellows chamber are not equalized.

A suspension system includes a longitudinal member, an air spring, a damper and an axle assembly. The air spring is not directly attached to the chassis but is mounted to contact a locating plate attached to the chassis. The locating plate includes a lip such that the locating plate is of a frustum configuration that laterally locates and self aligns the air spring upon pivotal movement and re-alignment of the air spring with the chassis. Preferably, the suspension system includes a protective skirt which aids in bringing the air cell into a correct position with the locating plate. In addition the axle assembly extends away from the chassis at a speed restricted by the damper such that the anti-vacuum system can equalize the pressure within the air cell.

The invention provides a notebook computer stand which comprises a base, a support and a computer tray, wherein the support comprises a vertical support and a lateral support which are rotatably connected, the other end of the vertical support is hinged with the base, and the other end of the lateral support is connected with the computer tray; the stand also comprises an angle control regulating mechanism which is used for keeping and changing the angles of the vertical support and the lateral support; and parallel four link type supports which are formed by two parallel and equilong hinge bars are preferably selected as the vertical support and the lateral support respectively. The computer tray connected with the notebook computer stand can move vertically and horizontally by the vertical and lateral supports and the angle control regulating mechanism of an air spring supporting rod which is matched with the vertical and lateral supports; a base rotary table can rotate 360 degrees relative to a bottom disk, and a connecting structure is arranged between the lateral support and the computer tray, so that the computer tray is ensured to rotate in five directions, thus a demand that a user moves a notebook computer in all dimensions is met. The notebook computer stand is simple in structure and can be used conveniently.