Title :
Development of an electromechanical active-cab-suspension
Author :
Hiromatsu, Takashi ; Inaba, Takeshi ; Matsuo, Yoshiki
Author_Institution :
Heavy Duty Vehicle Res. & Experiment Dept., Isuzu Motors Ltd., Kanagawa, Japan
Abstract :
On a typical heavy duty truck, cab-suspensions are installed between cab and chassis-frame of a truck, in order to ensure the riding-comfort. We have studied active control of cab-suspension aiming to improve its efficiency. In this paper, development of an active-cab-suspension actuated by an electric motor instead of hydraulic actuator, is presented. At first, requirements for active-cab-suspension are described. Secondly, we tried to design the new actuating system by simulations using actual vehicle acceleration data. Then, the specifications such as riding-comfort are given in the frequency domain and a controller is designed so that transfer functions are shaped to meet the specifications, using H∞ control theory. Finally, we performed experiments on full scale experimental equipment and on a real truck. Thereby it is confirmed that vibration is eliminated enough using AC servo motors of only 100 W rating
Keywords :
control system synthesis; electric actuators; electric motors; frequency-domain synthesis; optimal control; road vehicles; transfer functions; vibration control; 100 W; AC servo motors; H∞ control theory; actuating system; chassis-frame; electromechanical active-cab-suspension; frequency domain; heavy duty truck; simulation; transfer functions; vehicle acceleration data; vibration elimination; AC motors; Acceleration; Control theory; Electric motors; Frequency domain analysis; Hydraulic actuators; Servomechanisms; Shape control; Transfer functions; Vehicles;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1993. Proceedings of the IECON '93., International Conference on
Conference_Location :
Maui, HI
Print_ISBN :
0-7803-0891-3
DOI :
10.1109/IECON.1993.339407
