A tire management system includes a control valve and a check valve. A method for managing a tire includes: determining a pressure parameter value, determining an operational parameter for a valve based on the pressure parameter value, and controlling the valve based on the operational parameter.

A method for operating a self-propelled road construction machine as well as a road construction machine with which an adjustment of the traction of the wheeled undercarriage can be performed in a quick and easy manner by monitoring and actively regulating the traction of the tires in dependence on the operating mode of the road construction machine. Pavers and feeders for the making of road covers have a wheeled undercarriage, especially with pneumatic tires. For a uniform production process of the road cover, adequate traction of the tires is needed. For this, prior to the start of the production process the tire air pressure of the tires is decreased, and it is increased once again for travel on the road, and the manual adjustment of the tire air pressure to the installation conditions and/or to the operating mode of the road construction machine is time consuming and cost intensive.

A vehicle operational diagnostics and condition response system includes at least an axle supporting a cargo transport unit frame, a suspension disposed between and secured to each the cargo transport unit frame and the axle, a load detection device interacting with the suspension and communicating with a system controller, wherein the system controller is supported by the cargo transport unit frame, and a cargo transport unit health status system supported by the cargo transport unit and configured to communicate with the system controller. The cargo transport unit health status system provides state status information for monitored operational elements of the cargo transport unit.

A vehicle includes a vehicle frame, front wheels, and rear wheels. The vehicle also includes front drive means for driving the front wheels with a front nominal speed, rear drive means for driving the rear wheels with a rear nominal speed, and control means. The control means are adapted and configured for selectively controlling the front drive means and the rear drive means so that either the front nominal speed is different from the rear nominal speed, or so that the front nominal speed is equal to the rear nominal speed.

An air-ride axle/suspension system for a heavy-duty vehicle. A frame and at least a pair of suspension assemblies support opposite ends of an axle for movement relative to the frame. An air spring is associated with one of the suspension assemblies that establishes a first relative position between the axle and the frame as a function of fluid pressure in the air spring. A tire and wheel assembly is operatively mounted to an end portion of the axle associated with the air spring. A sensor detects an inflation condition of the tire and wheel assembly. A venting system exhausts fluid pressure from the air spring to establish a second relative position between the axle and the frame that is different than the first relative position in response to detecting a predetermined inflation condition of the tire and wheel assembly.

In order to adjust the tire internal pressure on landing to an appropriate internal pressure, the internal pressure and temperature of the tires when housed inside the aircraft in flight, the temperature and atmospheric pressure around the aircraft, and the altitudes and air temperatures at the takeoff and landing sites of the aircraft are obtained, and a target internal pressure at takeoff is calculated from information relating to the altitude and air temperature at the takeoff airport, after which an in-flight tire internal pressure whereby the tire internal pressure becomes a target internal pressure on landing is calculated from the temperature and atmospheric pressure around the tires of the aircraft, the air temperature and atmospheric pressure at the landing airport, and information relating to a load anticipated to act on the tires on landing, and subsequently the in-flight tire internal pressure is adjusted so that the obtained internal pressure of the tires housed inside the aircraft becomes the calculated in-flight tire internal pressure.

A tire pressure monitoring sensor comprises an environmental pressure sensor, a non-volatile memory for storing a first program and a second program, a processing unit for executing the first program, a communication module including a wireless transmitter for transmitting at least one parameter indicative of conditions within a tire and a wireless or wired receiver for loading the second program into the non-volatile memory and a battery for powering the sensor. The second program contains a sensor operation description which is used by the first program.

A self-inflating tire assembly includes an air tube mounted within a tire sidewall groove. The air tube is in contacting engagement with opposite angled groove surfaces surrounding the air tube. A segment of the air tube is flattened from an expanded diameter to a flat diameter by bending and compression of the groove in a rolling tire footprint to force air evacuated from the flattened segment along a tube air passageway. A tube is positioned within the groove, wherein the tube has a circular cross-sectional shape and an outside diameter D, and the groove does not have a circular cross-sectional shape, wherein said groove has a width W and a length L, wherein D is greater than W.

An ergonomic and rider-friendly auto-balancing personal transportation device. The device may have a central wheel structure with one or more tires and deployable foot platforms located on both sides of the central wheel structure. The platforms may be linked to a handle, such that lifting the handle retracts the foot platforms and releasing the handle may deploy them. The tire size and platform size may be set so that the device is easy to step on to, and the distance to ground when dismounting is reduced. Dual tire and single wider tire embodiments are disclosed as are other features and embodiments.

A tire inflation optimization apparatus configured to determine an optimum inflation pressure for a tire installed on an aircraft is disclosed. The apparatus includes a memory and a controller. The memory stores information relating tire gas properties to aircraft schedule parameters and a reference pressure for the tire. The controller is configured to receive future schedule information indicative of a future flight schedule for the aircraft and to determine an optimum inflation pressure for the tire based on the received future schedule information, the stored information relating tire gas properties to aircraft schedule parameters, and the stored reference pressure.