Title :
Research on steady and transient characteristics of 4-axle vehicle handling
Author :
Mingchun Liu ; Chengning Zhang ; Rui Zhang ; Zhifu Wang
Author_Institution :
Nat. Eng. Lab. for Electr. Vehicles, Beijing Inst. of Technol., Beijing, China
fDate :
Aug. 31 2014-Sept. 3 2014
Abstract :
The 2 degrees of freedom linear dynamic model of 4-axle vehicle is built. The transfer functions from steering anglesd δi to the slip angle β and yaw rate γ are derived. Based on a dual- front-axle steering vehicle, the characteristic parameters, such as undamped natural circle frequency, decay factor, damping coefficient and damped natural circle frequency are calculated. The step steering input at different longitudinal velocity and swept-sine steering input at different frequency simulations are done to research the steady and transient handling characteristics.
Keywords :
damping; steering systems; vehicle dynamics; damped natural circle frequency; damping coefficient; decay factor; dual-front-axle steering vehicle; four-axle vehicle handling; undamped natural circle frequency; vehicle linear dynamic; Computational modeling; Equations; Mathematical model; Steady-state; Tires; Transfer functions; Vehicles; 4-axle vehicle; Computer simulation; Dynamical model; Handling characteristics;
Conference_Titel :
Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-4240-4
DOI :
10.1109/ITEC-AP.2014.6940830
