US Patent 7536245 Vehicle state analyzing system, vehicle, and vehicle state management system

A vehicle is provided with an optimum suspension/chassis state and run for a first period of time under a predetermined condition, for storing information related to outputs of force sensors, as a reference value. The state of the vehicle may change due to the use thereof, thus it is run for a second period of time under the predetermined condition. An analyzing apparatus analyzes a change of an alignment state of the vehicle on the basis of information stored from the first and second periods.