Method and device for effecting a computer-aided estimation of the mass of a vehicle, particularly of a commercial vehicle
AssigneeKNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
InventorsFalk Hecker, Matthias Horn, Ulrich Guecker, Stefan Hummel
Life of this patent
Estimating the term…
Abstract
A method is for effecting a computer-aided estimation of the mass of a vehicle, e.g., of a goods-carrying vehicle, based on the equilibrium ratio between the driving force and the sum of the inertial force and drive resistances, in which the mass and a gradient angle of the roadway are contained as quantities. The method may include: a) computer-aided differentiation of the equilibrium ratio according to the time with the assumption that the gradient angle is constant; and b) calculating the mass of the vehicle and/or the reciprocal value of the mass from the equilibrium ratio differentiated according the time.
Claims35
A method for effecting a computer-aided estimation of a mass of a vehicle, the method comprising:
- differentiating, using a computer, an equilibrium relationship, between a motive force and a sum of an inertial force and drive resistances, in which the mass and a gradient angle of a roadway are included as quantities, with respect to time, assuming a constant gradient angle of the roadway, in the vehicle over a time period of travel on the roadway;
- and
- calculating, using a computer, at least one of (a) the mass of the vehicle and (b) a reciprocal value of the mass of the vehicle from the equilibrium relationship differentiated with respect to time in the differentiating operation;
- and
- providing the mass to at least one of an electronic stability system and an electronically regulated brake system of the vehicle to be used by the at least one of the electronic stability system and the electronically regulated brake system.
A device for effecting a computer-aided estimation of a mass of a vehicle, comprising:
- a computer having program code for effecting a computer-aided estimation of a mass of a vehicle by performing the following:
- differentiating an equilibrium relationship, between a motive force and a sum of an inertial force and drive resistances, in which the mass and a gradient angle of a roadway are included as quantities, with respect to time, assuming a constant gradient angle, in the vehicle over a time period;
- calculating, using a calculation unit, at least one of (a) the mass of the vehicle and (b) a reciprocal value of the mass of the vehicle from the equilibrium relationship differentiated with respect to time in the differentiating operation;
- and
- providing the mass to at least one of an electronic stability system and an electronically regulated brake system of the vehicle to be used by the at least one of the electronic stability system and the electronically regulated brake system.
Dependencies are inferred from the claim text.