1 1 (2) (3) d@* -MR, . R (4) 2 @q +ZVQ d i~ -R, . M RrM dt OL, d , L r OLsLr IQ --wr@d +-Abstract -The problem of induction motor state estimation and control without AC current measurements is considered. A state observer is designed by using a suitably reformulated output scheme and a decoupling controller with two independent current dr L, L, control loops is also presented. The proposed scheme is suitable equation of the motor dynamic model. A field oriented control d@d -MRr i , -!!qd -3 for series hybrid electric vehicles, so as confirmed by simulations IQ f W r @ d -L@q ' carried out with MatlablSimulink. dt L, L,