TY - GEN
T1 - A multibody model to assess the effect of automotive motor in-wheel configuration on vehicle stability and comfort
AU - Cuadrado, Javier
AU - Vilela, David
AU - Iglesias, Iñaki
AU - Martín, Adrián
AU - Peña, Alberto
PY - 2013
Y1 - 2013
N2 - Motor in-wheel topology is an optional configuration for electric-powered vehicles which has some advantages over the conventional standalone motor configuration, like improved modularity when designing different drivetrains (FWD, RWD, AWD) and increased usable interior space of the vehicle. However, drawbacks are also present due to the added unsprung mass, which directly affects to vehicle road holding and ride comfort, and may increase the suspension design cycle, as there is no data available from similar designs. In this work, a multibody model of a B-class car has been developed in order to assess the effect of motor in-wheel configuration on vehicle stability and comfort. The car is modeled in relative coordinates, being the suspensions described as macro-joints by means of lookup tables thus yielding a tree-like structure, and a semi-recursive formulation is applied to derive the equations of motion, which are numerically integrated in time through the trapezoidal rule. Three tests are carried out to compare the behavior of conventional and motor in-wheel configurations: sine sweep, obstacle avoidance and constant radius. A number of motion indicators are obtained from these maneuvers so as to measure the ride, handling and steering characteristics.
AB - Motor in-wheel topology is an optional configuration for electric-powered vehicles which has some advantages over the conventional standalone motor configuration, like improved modularity when designing different drivetrains (FWD, RWD, AWD) and increased usable interior space of the vehicle. However, drawbacks are also present due to the added unsprung mass, which directly affects to vehicle road holding and ride comfort, and may increase the suspension design cycle, as there is no data available from similar designs. In this work, a multibody model of a B-class car has been developed in order to assess the effect of motor in-wheel configuration on vehicle stability and comfort. The car is modeled in relative coordinates, being the suspensions described as macro-joints by means of lookup tables thus yielding a tree-like structure, and a semi-recursive formulation is applied to derive the equations of motion, which are numerically integrated in time through the trapezoidal rule. Three tests are carried out to compare the behavior of conventional and motor in-wheel configurations: sine sweep, obstacle avoidance and constant radius. A number of motion indicators are obtained from these maneuvers so as to measure the ride, handling and steering characteristics.
KW - Electric vehicle
KW - Lookup tables
KW - Motor in-wheel
KW - Openloop model
KW - Relative coordinates
KW - Ride and handling
KW - Semi-recursive formulation
KW - Unsprung mass
KW - Vehicle stability and comfort
UR - http://www.scopus.com/inward/record.url?scp=84893070447&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84893070447
SN - 9789537738228
T3 - Proceedings of the ECCOMAS Thematic Conference on Multibody Dynamics 2013
SP - 1083
EP - 1092
BT - Proceedings of the ECCOMAS Thematic Conference on Multibody Dynamics 2013
T2 - ECCOMAS Thematic Conference on Multibody Dynamics 2013
Y2 - 1 July 2013 through 4 July 2013
ER -