Electric motor efficiency optimization as applied to electric vehiclesElectric motor efficiency optimization as applied to electric vehicles Δημοσίευση σε Συνέδριο Conference Publication 2015-11-142012enThis work contributes to the development of control techniques for the drive systems of battery-powered electric vehicles, hybrid electric vehicles HEVs, 1st by introducing the design of a new motor efficient controller, in order to improve the energy efficiency of electric motors drives in HEVs and 2nd to achieve a fast torque response by applying a Seamless Direct Torque Control (DTC) method for the electric motor Variable Speed Drive (instead the commonly used FOC method), in the HEVs technology. The design of a Motor Efficiency Controller, based on the optimum reduction of the electric motor's magnetic flux, which achieves fast and accurate convergence to the point of electric motor's electromagnetic loss minimization in case of changes in load or in speed, as well as to be insensitivity to electric motor's parameters variations.http://creativecommons.org/licenses/by/4.0/369-373International Symposium on Power Electronics, Electrical Drives, Automation and Motion Sergaki Eleftheria Σεργακη Ελευθερια Institute of Electrical and Electronics Engineers Vehicles, Electric electric vehicles vehicles electric