A Hydropneumatic Suspension Parameter Study on Heavy Multi-Axle Vehicle Handling
Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
The Swedish company Strömsholmen AB, which develops and manufactures gas springs for the tool and die industry, have entered the market of heavy duty off-road vehicles where they advertise their hydropneumatic suspension system. One of their customers is the Finnish defense company Patria, which produces the eight-wheeled military vehicle Patria AMV. In order to produce a more optimized suspension system for Patria, Strömsholmen is in need of learning more about how the vehicle dynamic properties such as handling are influenced by the suspension settings. To achieve this knowledge Strömsholmen started a collaboration with the consultant company FS Dynamics and initiated this master thesis work. The aim with this master thesis is to produce a simulation model of Patria AMV and investigate the influence of the suspension system settings on vehicle dynamic properties such as handling. The thesis work has resulted in a vehicle model in Adams/Car that is verified against experimental data from two slalom maneuvers. The model shows a good correlation with the validation data, taking into account the many assumptions and estimations that had to be made during the work due to lack of vehicle parameter data. A suspension parameter study was performed investigating vehicle maneuvers such as steady-state cornering and single-lane change. The results are summarized in a lookup table which can be used during future vehicle tests. Recommendations for future work is to verify some of the estimated vehicle parameters in the vehicle model as well as correlate test drivers subjective feel of the vehicle response to the calculated objective handling measures in this work.
Place, publisher, year, edition, pages
2015. , 126 p.
TRITA-AVE, ISSN 1651-7660 ; 2015:24
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-180277OAI: oai:DiVA.org:kth-180277DiVA: diva2:892101
Subject / course