Method and apparatus for improving the running characteristics o

Details Method and apparatus for improving the running characteristics o Method and apparatus for improving the running characteristics o

1993-09-29

1995-08-15

Cabeca, John W.

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Running-speed control

318 52, 318 66, B61F 538

Patent

active

054422655

ABSTRACT:
A rail vehicle may be provided with a plurality of individual wheels (11, 12, 21, 22) and traction motors which are supplied with power on a wheel block by wheel block basis by means two control devices each including open loop and closed loop controls (6, 8). The wheel speeds (n11, n12, n21, n22) are used to determine two wheel block speeds (n1, n2), from which an actual speed difference value (.DELTA.n) is calculated. A manipulated variable (.DELTA.m*) is produced from a comparison of the actual speed differences value (.DELTA.n) to a set speed difference value (.DELTA.n*). A set traction lever value (m,) is increased and reduced by this manipulated variable (.DELTA.m). Consequently, the wheel blocks (1, 2) obtain a definitively set speed difference corresponding to the arc radius (r), whereby the running behavior on bends is significantly improved by virtue of the satisfied rolling condition.

REFERENCES:
patent: 4037143 (1977-07-01), Soderberg
patent: 4087725 (1978-05-01), Burn
patent: 4644232 (1987-02-01), Nojiri et al.
patent: 5117136 (1992-05-01), Kobayashi et al.
ZEV-Glas. Ann. 114 (1990) No. 1/1 Jan./Feb., pp. 24-29: Aspekte zur Spurfuhrung.

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