The acceleration performance of EV, which affects a lot of performances of EV such as start-up, overtaking, driving safety, and ride\ncomfort, has become increasingly popular in recent researches. An improved variable gain PID control algorithm to improve the\nacceleration performance is proposed in this paper. The results of simulation with Matlab/Simulink demonstrate the effectiveness\nof the proposed algorithm through the control performance of motor velocity, motor torque, and three-phase current of motor.\nMoreover, it is investigated that the proposed controller is valid by comparison with the other PID controllers. Furthermore, the\nAC induction motor experiment set is constructed to verify the effect of proposed controller.
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