Turning speed controller for electric vehicles having dual drive

Details Turning speed controller for electric vehicles having dual drive Turning speed controller for electric vehicles having dual drive

1983-12-22

1985-05-28

Witkowski, S. J.

Electricity: motive power systems

Positional servo systems

Vehicular guidance systems with single axis control

318 82, 180 628, 180 65, B62D 1104, H02P 768

Patent

active

045202990

ABSTRACT:
The invention disclosed provides a control system for an electric vehicle which automatically slows the vehicle during a turn and causes it to be increasingly slowed as the sharpness of the turn increases. The invention includes means for regulating the field excitation in accordance with a field regulating signal; means providing an armature current indicative signal; means providing a turning angle signal which is indicative of the turning angle of the vehicle; and a field excitation selector which receives the armature current indicative signal and the turning angle signal and then selects one or the other or a minimum reference value as the field regulating signal. The signal which produces the maximum field excitation is thus automatically selected. If a turning maneuver is being carried out, the turning angle signal increases until, at some point, the field excitation becomes a function of the steering angle and the vehicle is then automatically slowed as a function of the sharpness of the turn.

REFERENCES:
patent: 3720863 (1973-03-01), Ringland et al.
patent: 4166238 (1979-08-01), Binner
patent: 4196785 (1980-04-01), Downing, Jr.
patent: 4264851 (1981-04-01), Paramythioti et al.
patent: 4449598 (1984-05-01), Hones et al.

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