Method for determining spinning or slipping of the wheels in propulsion vehicles without dead axles

Claim 3

The method of claim 1 wherein, in determining a simulated vehicle velocity from a selected wheel velocity the mass of the vehicle and the measured load, the traction forces, the braking forces of the generator and the mechanical brake, and the air and rolling resistance are taken into consideration as influence variables which cause acceleration or deceleration of the vehicle.

Claim 4

The method of claim 2 and further including taking into consideration as an influence variable, the inclination and downward slope of the line.

Claim 5

The method of claim 3 and further including, when determining said simulated vehicle velocity, taking into consideration a supplemental force which causes the acceleration of the vehicle mass simulated by the model to always be larger than the acceleration which occurs in reality.

Claim 6

Apparatus for determining spinning and slipping of the wheels in propulsion vehicles without dead axles, particularly rail propulsion vehicles, comprising: (a) means for measuring the wheel velocities of all axles; (b) means for determining the highest and the lowest wheel velocity of the measured wheel velocities of all axles; (c) means for selecting the highest wheel velocity in the presence of a braking command and otherwise selecting the lowest wheel velocity for further use; (d) means for determining a simulated vehicle velocity from the selected wheel velocity, taking into consideration influence variables which cause acceleration or deceleration of the vehicle; (e) means for comparing the simulated vehicle velocity with the measured wheel velocities to determine the differences therebetween; and (f) means for converting the differences that occur into signals for influencing the drive or the braking device of the respective axle.

Claim 7

Apparatus for determining spinning and slipping of the wheels in propulsion vehicles without dead axles, particularly rail propulsion vehicles, comprising: (a) means for measuring the wheel velocities of all axles; (b) means for determining the highest and the lowest wheel velocity of the measured wheel velocities of all axles; (c) means for selecting the highest wheel velocity in the presence of a braking command and otherwise selecting the lowest wheel velocity for further use; (d) means for determining a simulated vehicle velocity from the selected wheel velocity, taking into consideration influence variables which cause acceleration or deceleration of the vehicle; (e) means for comparing the simulated vehicle velocity with the measured wheel velocities to determine the differences therebetween; and (f) means for converting the differences that occur into signals for influencing the drive or the braking device of the respective axle.

Claim 8

Apparatus according to claim 5 wherein said means for determining a simulated vehicle velocity comprises an electronic model having as inputs signals representing the mass of the vehicle and the measured load, the traction forces, the braking forces of the generator and the mechanical brake, and the air and rolling resistance.

Claim 9

Apparatus according to claim 6 wherein said electronic model has as a further input a signal representing the inclination and downward slope of the line.

Claim 10

Apparatus according to claim 7 wherein said electronic model has as a further input a signal representative of a supplemental force which causes the acceleration of the vehicle mass simulated by the model to always be larger than the acceleration which occurs in reality.