Disclosed herein are devices and systems for continuous control of tire pressure. In one aspect, a device for continuously controlling tire pressure includes a bracket, a fixed non-rotating member fixedly attached to the bracket, and a non-fixed rotating member rotatably attached thereto. The fixed non-rotating member has at least one first seal surface, the at least one seal surface configured to be in fluid communication with a compressed air source. The non-fixed rotating member has at least one second seal surface, wherein an air chamber defined within a volume between interacting the at least one first seal surface and the at least one second seal surface causes fluid communication between an interior space of the tire and the compressed air source.

A central tire inflation/deflation system (CTIS) with a novel valve that may deflate more quickly and may deflate to a lower pressure than the previously known central tire inflation/deflation system valves. Also, the present valve may not be temperature sensitive, at least because the present valve does not require trapped air behind a diaphragm to operate the valve. The present valve may be placed into existing CTIS's in place of existing valves, without modifying pneumatic lines of the existing CTIS's. Thus, the present valve may be operated by a single fluid flow line, receive pressure from the single fluid flow line, and exhaust to the single fluid flow line. A second communication line, either a pneumatic pilot line or an electrical line, is not necessary, which allows the present valve to be retrofit into an existing CTIS without adding weight or complication from additional components.

A pressure medium supply device for a tire of a wheel unit, a wheel unit, and a valve arrangement for a rotationally fixed transition of a pressure medium supply device for a wheel unit are provided. The valve arrangement has a housing part through which a pressure medium can flow, a control piston, in particular an axially movable control piston which is received on the housing part, and a discharge element with an outlet for conducting the pressure medium. The housing part and the discharge element are received in a rotatable manner relative to each other. The control piston has a flow channel for the pressure medium, has a force application surface to which the pressure medium can be applied, and can be moved between a disengaged position and an engaged position. A pressure medium line can be established between the housing part and the discharge element in the engaged position.

A tire pressurization arrangement on a vehicle in which the pressurization of the tire is controlled by a vehicle control unit and the vehicle control unit is notified of a desired tire pressure or desired tire volume. An air flow rate in a supply line to the tire is established so that the time to pressurize the tire to the desired tire pressure/volume is calculable, or the time taken to pressurize the tire to an interval pressure/volume is calculable, said interval pressure/volume being between a current tire pressure/volume and the desired pressure/volume, and if the time to pressurize the tire to the desired pressure is exceeded, the control unit gives a warning signal and/or stops deflation or inflation.

The invention relates to the vehicles for off-road driving, both on land and on water, which can be used for construction of vehicles with good cross-country ability, (all-terrain vehicles). An all-terrain vehicle comprises a cabin with a glazing and a door, a passenger compartment, a frame, an engine with an exhaust system, a transmission gearbox, a steering gear, a running gear comprising a final drive system connected with at least two pairs of axle shafts with the wheels mounted on them having the low pressure tires, a suspension connected with the wheel tires, a tire inflation system, a heating system, a control system, is different in that it comprises an air line connected simultaneously with all wheel tires and associated with a tire inflation system. A suspension of an all-terrain vehicle comprises a wheel suspension system connected with the wheel tires, a fluid power drive, and a tire inflation system, is different in that a wheel suspension system is configured as an air line formed by the hollow tubes welded together to make a frame formed by the side members and the cross bars or it is configured outside a frame to form a closed circuit connected with each tire by means of the pipelines with the valve members, whereas as a fluid power drive and a tire inflation system the claimed invention provides an engine exhaust system equipped with a damper and connected with an air line through a pipeline with a valve member.

A method of setting the rides height of the air springs and air pressures of the tires, including receiving a user selected setting or preprogrammed ride height settings; sensing a ride height of, and air pressure within, each of the air springs; determining the weight of the vehicle based on the sensed ride height and air pressure within each of the air springs; providing specified ride heights for the left and right front and rear air springs; determining specified air pressures for the left and right front and rear tire inflators, based upon the determined weight of the vehicle and selected setting; inflating the left and right front and rear air springs to the specified ride heights; and inflating the left and right front and rear tires to the specified air pressures.

A method of repairing a tire includes providing a tire. The tire has a tire pressure. It is determined if the tire pressure is below a target tire pressure. If the tire pressure is below the target tire pressure a first flow of pressurized air is directed to the tire. It is determined if the tire is torn or punctured. If it is determined that the tire is torn or punctured, a signal is sent to a heating element to produce heat energy. The heat energy is transferred to a second flow of pressurized air. The heated, second flow of pressurized air is directed to the tire.

A system and method of controlling pressure of a tire. The method may include executing a low supply pressure operating mode when an available supply pressure of pressurized gas is less than a target tire pressure. The tire may be inflated with pressurized gas provided at the available supply pressure when an estimated tire pressure is not within a threshold amount of the available supply pressure.

A system for monitoring tire pressure of at least one vehicle tire of a utility vehicle includes a pressure sensor for detecting an internal tire pressure of the at least one vehicle tire and an electrically controllable tire inflation system for varying the internal tire pressure. The system also includes a monitoring unit disposed in communication with the pressure sensor and the tire inflation system. The monitoring unit identifies a defect-induced loss of pressure in the at least one vehicle tire based on the detected internal tire pressure, determines a temporal progression of the detected defect-induced loss of pressure, calculates a volume flow necessary for continuous compensation of the pressure loss based on the temporal progression, and controls the volume flow into the at least one vehicle tire via the tire inflation system.

A device for tire pressure monitoring of a vehicle tire of a vehicle system includes a tire inflation system in communication with the vehicle tire. A control unit calculates a set pressure value to be maintained for the tire pressure. A storage unit is in communication with the control unit such that the control unit adjusts the calculated set pressure value in dependence on an operating state classification derived from operating state parameters of the vehicle system. The control unit determines a geoposition of the vehicle system correlating with the derived operating state classification and stores it with the operating state classification in the storage unit. The control unit further recalls from the storage unit the relevant operating state classification for purposes of anticipatory adjustment of the set pressure value of the tire pressure when a renewed approach of the vehicle system to the stored geoposition is detected.