Abstract: 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.

Abstract: 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.

Abstract: A tire pressure control arrangement for a vehicle having at least two tires connected to an air supply. Each tire is connected to the air supply via a supply line having a first valve connected to a second valve. The arrangement further includes a pressure sensor between the two valves. The first valve is closed while the supply line is connected to a pressure supply and the pressure in the supply line is monitored for a pre-determined period of time by a control system on the vehicle to detect whether there are any leaks in the arrangement.

Abstract: 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.

Abstract: A tyre pressurisation arrangement on a vehicle in which the pressurisation of the tyre is controlled by a vehicle control unit and the vehicle control unit is notified of a desired tyre pressure or desired tyre volume. An air flow rate in a supply line to the tyre is established so that the time to pressurise the tyre to the desired tyre pressure/volume is calculable, or the time taken to pressurise the tyre to an interval pressure/volume is calculable, said interval pressure/volume being between a current tyre pressure/volume and the desired pressure/volume.

Abstract: A tire inflation arrangement on a vehicle, said arrangement comprising a rotatable part with a rotatable air passage connected to an air supply and a tire. The arrangement comprises a non-rotatable part on, or through which air from the air supply is conducted. One of said parts is provided with a sealing means for co-operating with a contact surface of the other part. A first valve means (222) and a second valve means (223) are positioned in series along a supply line which extends between the tire and the air supply and each of said valve means (222, 223) is moveable between an open and a closed position in which the flow of air along the supply line is permitted and blocked respectively.

Abstract: A tire pressure control arrangement for a vehicle having at least two tires connected to an air supply. Each tire is connected to an air supply via a respective supply line having a respective valve means (223) and the respective valve means is connected to a second valve means (222). The arrangement further comprises a pressures sensor (38) between the respective valve means (223) and the second valve means (222). The respective valve means (223) is closed while the supply line is connected to a reference pressure supply and the reference pressure in the supply line is monitored for a pre-determined period of time by a control system on the vehicle to detect whether there are any leaks in the arrangement.