Model-Based Approach to Investigate the Influences of Different Load States to the Vehicle Dynamics of Light Electric Vehicles  

作　　者：Harry Ott René Degen Mats Leijon Margot Ruschitzka Harry Ott;René Degen;Mats Leijon;Margot Ruschitzka(CAD CAM Center Cologne, Institute of Automotive Engineering Cologne (IFK), Faculty of Automotive Systems and Production, Cologne University of Applied Science, Cologne, Germany;Division of Electricity, Department of Electrical Engineering, Uppsala University, Uppsala, Sweden)

机构地区：[1]CAD CAM Center Cologne, Institute of Automotive Engineering Cologne (IFK), Faculty of Automotive Systems and Production, Cologne University of Applied Science, Cologne, Germany [2]Division of Electricity, Department of Electrical Engineering, Uppsala University, Uppsala, Sweden

出　　处：《Journal of Transportation Technologies》2021年第2期213-230,共18页交通科技期刊（英文）

摘　　要：The need to find alternative urban mobility solutions for delivery and transport has led mobility companies to devote enormous resources for research-based solutions to increase vehicle safety. This paper documents a virtual approach to investigate the influences of different load states to the vehicle dynamic of light electric vehicle. A model basing on a three-dimensional </span><span style="font-family:""><span style="font-family:Verdana;">multibody system was used, which consists of five bodies. By applying methods of multibody modelling the generalized equations of motion were generated. To </span><span style="font-family:Verdana;">include the behavior within the contact point between road and vehicle a</span><span style="font-family:Verdana;"> simplified tire models was added. The implementation of the equations allowed a first validation of the model via simulations. In a final modeling step the simulation results were interpreted in respect of plausibility. Afterwards, the model was simulated numerically to investigate different load states of the vehicle, by applying constant steering stimuli and variable velocities. In sum, the investigated model approach is useful to identify safety relevant parameters and shows the effects of load states to the vehicle dynamics. Furthermore, it behaves plausibly regarding general vehicle dynamics. These results prove </span><span style="font-family:Verdana;">the general usability of the model for the development controllers and esti</span><span style="font-family:Verdana;">mators in driver assistances systems.The need to find alternative urban mobility solutions for delivery and transport has led mobility companies to devote enormous resources for research-based solutions to increase vehicle safety. This paper documents a virtual approach to investigate the influences of different load states to the vehicle dynamic of light electric vehicle. A model basing on a three-dimensional </span><span style="font-family:""><span style="font-family:Verdana;">multibody system was used, which consists of five bodies. By applying methods of multibody modelling the generalized equations of motion were generated. To </span><span style="font-family:Verdana;">include the behavior within the contact point between road and vehicle a</span><span style="font-family:Verdana;"> simplified tire models was added. The implementation of the equations allowed a first validation of the model via simulations. In a final modeling step the simulation results were interpreted in respect of plausibility. Afterwards, the model was simulated numerically to investigate different load states of the vehicle, by applying constant steering stimuli and variable velocities. In sum, the investigated model approach is useful to identify safety relevant parameters and shows the effects of load states to the vehicle dynamics. Furthermore, it behaves plausibly regarding general vehicle dynamics. These results prove </span><span style="font-family:Verdana;">the general usability of the model for the development controllers and esti</span><span style="font-family:Verdana;">mators in driver assistances systems.

关 键 词：Vehicle Dynamics Multibody System TRICYCLE Rigid Model Numerical Simulation 

分 类 号：O17[理学—数学]