| 摘要 |
<p>An electric vehicle, in particular a wheelchair for use by invalids, is provided with a "twist-grip" control (34,35) rotatable about its longitudinal axis in clockwise and anticlockwise directions from an "at rest" position, such rotational movement from its "at rest" position causing a differential in the power supplied to motors driving respective sides of the wheelchair to cause the wheelchair to turn either to the left or to the right. A speed control lever (61) may be mounted on the "twist-grip" (34,35) to alter the speed at which the wheelchair may be driven. The twist-grip control (34,35) and speed control lever (61) may operate a plurality of switches or influence a solid state control circuit to control the amount of power supplied to the motors driving the wheelchair.</p> |
