Concepts and Methods from the Field of Vehicle Dynamics for Safety Considerations of Light Electric Vehicles

  • Vehicle dynamic considerations regarding the safety of lightweight vehicles need to cover different aspects than those regarding conventional automobiles. New problems and effects require dedicated research and modified methods. The present contribution discusses these new challenges covering aspects like specific vehicle design concepts (e.g. three-wheelers) and the significance of human body mass in relation to the total mass. Some initial simulation results are presented that were gained with an example design of a three-wheeled two seater vehicle. The results show that the seating position and number of passengers have a significant influence on the stability against rollover. Thus they illustrate that the mass of the human body is of importance for the dynamic behaviour of the overall system. The article gives a list of further effects like the stiffness and damping properties of the human body and also the influence of the human as part of the system in terms of control engineering. A strategy is suggested which combines computer simulation and road tests. This strategy minimizes the need for costly testbed experiments for optimizing the simulation models. Particularly when simulation is employed in order to reduce the need for sensors that would require complicated structural modification (e.g. force sensors in suspension components). Ideally, sensor application can be limited to inertial sensors and other positioning sensors like GPS.

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Author:Georg Wegener
Parent Title (English):LEVS2017 - Light Electric Vehicle Summit, 22-23 November 2017, Rotterdam, Netherlands
Document Type:Conference Proceeding
Language:English
Year of Completion:2017
Date of first Publication:2017/11/22
Release Date:2018/09/24
Tag:inertial sensors; light electric vehicles; model verification; multi body system simulation; vehicle dynamics
GND Keyword:Leichtfahrzeug; Fahrzeugdynamik
Urheberrecht:1
research focus :Intelligent Systems / Intelligent Mobility
Intelligent Systems / Intelligent Sensors and Signals
Licence (German):Creative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International
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