| 摘要 |
The invention relates to a method for determining the mass of a vehicle or a mass part of a vehicle for each wheel having wheel suspension enabling vertical displacement between the vehicle structure and the vehicle wheels. The mass is estimated by means of a status monitor based on the vertical dynamics of the vehicle. The base of the status monitor can be formed by a mathematical model of the vertical dynamics of the entire vehicle and the body accelerations and/or range of spring and or wheel accelerations and/or rotational speeds of the body are taken into account as measure variables in the model formulation. Alternatively, the base of the status monitor can be formed by a mathematical model of the vertical dynamics of one quarter of the vehicle having only one wheel in a two track, two axle vehicle. In addition to the measure variables and the vertical dynamic state variables, control variables for semi-active or active chassis control systems can be taken into account, in addition to stimulations of the body by acceleration and/or braking processes and/or steering manoeuvres on the vehicle for example, about the modelling of the longitudinal dynamics and/or the transversal dynamics via a physical model, in particular a one track or two track model. |
