Erschienen in:
Advances in Mechanical Engineering, 14 (2022) 1, Seite 168781402110729
Sprache:
Englisch
DOI:
10.1177/16878140211072942
ISSN:
1687-8132;
1687-8140
Entstehung:
Anmerkungen:
Beschreibung:
To improve the ride comfort of electric vehicle, the vertical dynamic model of electric vehicle is established under the excitation of road surface and wheel hub motor. The road excitation is divided into random continuous road and convex road, and the influence of motor electromagnetic excitation on vibration is analyzed. To avoid the empirical value influence of each index weight coefficient on the main vibration control, the weight coefficient is determined by analytic hierarchy process (AHP), the LQG controller of vehicle active suspension is designed by using optimal control theory, and the comprehensive optimization of performance index is realized. The effectiveness of control effect is verified by comparing active and passive control based on single and double excitation.