The impact of the negative velocity feedback controller on a generator of a hybrid electric vehicle subject to external force

Document Type : Original Article

Author

mathematics, faculty of science , zagazig

Abstract

This purpose of this paper is to determine the stability domain of the powertrain of hybrid electric vehicles under different drive mode with multiple excitation sources, such as irregular internal excitation (engine and motor), external excitation (road) which can result in shaft failure. The multiple scale technique (MSPT) is used to develop and solve the simplified two-mass nonlinear dynamic model of second order for the hybrid elective vehicles powertrain (HEVP) in order to produce an approximate solution. HEVP is studied on the existence of external force at super harmonic resonance case ( ). The negative velocity feedback control (NVF) is used to control the amplitude of HEVP vibration. The mathematically derived frequency response equation is used in the numerical solutions that obtained using Rung-Kutta procedure. Comprehensive comparison of the amplitudes is served by using the time history program before and after the control of NVF. Response curves for frequency (angular speed) were studied at specific system coefficients that were both controlled and uncontrolled. The influence of various system parameters on the stability behavior are discussed.

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Bulletin of Faculty of Science, Zagazig University
Volume 2025, Issue 4
October 2025
Pages 115-125

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