Digital system for controlling the wheels of a heavy-duty commer

Details Digital system for controlling the wheels of a heavy-duty commer Digital system for controlling the wheels of a heavy-duty commer

1974-08-15

1976-01-20

Friaglia, Leo

Motor vehicles

Special wheel base

Five or more wheels

180 791, 180 792C, B62D 6110

Patent

active

039332152

ABSTRACT:
The angle each of a plurality of individually controllable wheels is to make with the lengthwise axis of a vehicle is controlled by a force responsive to the difference between a desired and actual position signal for each of the wheels, the former being furnished as a function of the angle of rotation of the steering wheel. The actual and desired position signals are furnished by code wheels coded in the absolute angle value of the desired or actual wheel position signals. In a first embodiment, the code wheels have a linear transfer characteristic. The control system includes a computer to convert one of the signals to a tangent or arctangent function and a comparator for comparing the converted signals to the other of the two sensed signals. In other embodiments either the code wheel furnishing the actual position signal has a tangent characteristic or that furnishing the desired position signal has an arctangent characteristic curve, thereby permitting direct comparison of the desired to the actual wheel position signals.

REFERENCES:
patent: 3280931 (1966-10-01), Cahill et al.
patent: 3387684 (1968-06-01), Belke

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