Abstract: A tire pressure monitoring system includes plurality of sensor modules having respective motion switches and pressure sensors respectively attached to the tires of a vehicle. The sensor modules communicate, by RF broadcast transmission, tire pressure messages at staggered times so that the transmitted messages to a passenger compartment monitor do not interfere with each other for improve reliable reception of the messages.

Abstract: A tire pressure monitoring system includes plurality of sensor modules having respective motion switches and pressure sensors respectively attached to the tires of a vehicle. The sensor modules communicate, by RF broadcast transmission, tire pressure messages at staggered times so that the transmitted messages to a passenger compartment monitor do not interfere with each other for improve reliable reception of the messages.

Abstract: A vehicular tire air pressurization system having an intelligent controller for macro control is connected to one or more intelligent manifolds for micro control so as to distributively process air pressurization functions, with the controller having non volatile memory which is field programmable and alterable for storing current operating conditions, functions and parameters for communicating desired air pressures to the manifolds each connected to at least one set of tires and each including non volatile memory for storing pressurization parameters used to control inflation and deflation of the sets of tires to the desired pressures subject to the pressurization parameters which are also field programmable and alterable and which are updated after periodic pressure adjustment cycles, so that, the tires are efficiently pressurized and maintained at the desired pressures even during changing performance characteristics.

Abstract: A vehicular tire air pressurization system having an intelligent controller is connected to one or more manifolds each connected to at least one set of tires with the controller for selecting current operation conditions and controlling the manifolds to maintain tire pressure at desire air pressures, the controller having non volatile memory for storing dynamic parameters used to control manifolds having inflation and deflation valves for pressurizing the sets of tires to the desired pressures subject to dynamic parameters which are field programmable and which may be updated after each pressure adjustment cycle so that the tires are efficiently pressurized to the desired pressures even during changing dynamic characteristics caused by changing conditions such as temperature, altitude and tire wear, the non volatile memory is also for storing operational data after installation to reselect operating functions and to reset operating parameters.