| 摘要 |
The invention relates to an arrangement for detecting the slipping of the wheels of running axle-less rail power units, in which proportional voltages associated with the speeds of revolution of all the wheel axles are compared with a reference speed of revolution or voltage emitted by an integrator as a pseudo-running axle and the differences occurring in speed of revolution comparators are evaluated in order to reduce the drive forces or brake forces at the respective axles, control variables corresponding to the desired traction force values accelerating the power unit and those of a comparator being fed to the integrator in order to influence the integration speed, which comparator in each case forms the difference between the reference voltage and a selection of all proportional voltages corresponding to the speeds of revolution of the wheels. In order to avoid the errors with detected integration speeds and to be able to continuously match the integration speed to the actual acceleration, it is proposed according to the invention that the control variable desired traction force value (Zsoll) be fed to the integrator multiplied by a reduction factor </= 1 which is dependent on the continuous comparison of the acceleration value with the actual traction force value or corresponding proportional variables. At the same time, the control variable of the dsired traction force value (Zsoll) is modified by means of a multiplying digital-to-analog converter (30) to which a reduction factor which corresponds to the counter state of a counter (31) is fed, in which case the counting operation and counting direction of the counter (31) are dependent on the comparison of the actual acceleration value (bist) with the actual traction force value (Zist). <IMAGE> |
