Electric motors Electronic control 231 Electric controllers 217 Automatic control 134 Design and construction 88 Electric driving 82 Electric machinery 59 PID controllers 52 Electric motors, Induction 50 Electric motors, Direct current 41 Maintenance and repair 36 Electric generators 33 Fuzzy systems 28 Electric transformers 23 Intelligent control systems 22 Power electronics 22 Teaching 20 Aids and devices 18 Electronic controllers 17 Industrial electronics 17 Programmable controllers 17 Alternating current 16 Automobiles 16 Electric motors,Induction 16 Study and teaching 16 Embedded computer systems 14 Energy consumption 13 Electric machinery, Induction 12 Electric power systems 12 Electric vehicles 12