Title :
A PLD-controlled multi-speed drive circuit for small electric vehicles
Author :
Pavuza, F.G. ; Beszedics, G. ; Toriser, W. ; Wawra, M. ; Winkler, W.
Author_Institution :
Tech. Univ., Vienna, Austria
Abstract :
The core of control circuits for electric motors based on the pulse width modulation (PWM) principle can be realized using discrete analog or digital logic devices, microprocessors or dedicated mixed signal circuits. This paper describes a method based on a programmable logic device (PLD). The PLD follows a state machine concept and controls the bi-directional flow of energy between the source (e.g. batteries) and the motor. The complete circuit-control and power section-is currently used to supervise the drive and brake mode of small electric vehicles (bicycles, wheelchairs, carts)
Keywords :
braking; electric propulsion; electric vehicles; machine control; programmable controllers; pulse width modulation; traction motor drives; variable speed drives; velocity control; PLD control; PWM principle; bi-directional energy flow; multi-speed drive circuit; programmable logic device; small electric vehicles; state machine concept; Batteries; Bidirectional control; Digital modulation; Electric motors; Logic devices; Microprocessors; Programmable logic devices; Pulse circuits; Pulse width modulation; Space vector pulse width modulation;
Conference_Titel :
Electrical and Computer Engineering, 1997. Engineering Innovation: Voyage of Discovery. IEEE 1997 Canadian Conference on
Conference_Location :
St. Johns, Nfld.
Print_ISBN :
0-7803-3716-6
DOI :
10.1109/CCECE.1997.608351
