Verfahren und Vorrichtung zur Ermittlung der Fahrzeugmasse

摘要

The invention concerns the determination of a mass value (Mges) which represents the mass of a vehicle, in particular a utility vehicle. The vehicle has a drive unit (104) and a clutch unit (105). When the clutch unit is opened, the flow of force between the drive unit and the vehicle wheels can be substantially interrupted. At least one first acceleration value (a1) is sensed which represents the vehicle acceleration at a first moment in time (t1). In addition, at least one first drive value (Fantr1) is sensed, which represents the driving force or driving torque of the drive unit at the first moment in time. The invention essentially consists in that at least one second acceleration value (aoffen) is sensed, which represents the vehicle acceleration at a second moment in time when the clutch unit (105) is substantially open. The second sensed acceleration value (aoffen) is then compared with at least one predeterminable limit value (Su, So). The mass value (Mges) is determined at least as a function of the first sensed acceleration value (a1) and the first sensed drive value (Fantr1).