| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electric handy cart in which speed control is used as the control system of an electric motor that drives a driving wheel. <P>SOLUTION: The electric handy cart 1 includes: an operation rod 3 to be held by a walker; an operation force detector 9; the electric motors (4, 5); speed detection means (4a, 5a) for detecting the rotation speeds of the electric motors (4, 5) respectively; the driving wheels (6, 7) rotated by the electric motors (4, 5); and a controller 10 for supplying a control current to the electric motors (4, 5) on the basis of force signals from the operation force detector 9. The controller 10 includes: a target speed computing means 12 for computing target speed signals by integrating the force signals from the operation force detector 9; an averaging means 25 for averaging detection speed signals and outputting average speed signals; and a target current computing means 21 for computing target current signals to be supplied to the electric motors (4, 5) on the basis of deviation signals of the average speed signals and the target speed signals. <P>COPYRIGHT: (C)2013,JPO&INPIT |
