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In this context, the present work aims to present a test rig that allows to study the BDS dynamics and power loss characteristics. Furthermore, the test rig offers major advantages over the utilization of traditional engine cells. Measurements obtained in such testing environments have a high level of uncertainty due to the uncontrollable irregu- larities that characterize the phiysical phenomena occuring into the ICE. The designed test rig allows the reproduction of a realistic and controllable testing environment. The use of two electric motors for the dynamic simulation of the
2405-8963 © 2016, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved. Peer review under responsibility of International Federation of Automatic Control.
10.1016/j.ifacol.2016.10.509
Table 1. Nomenclature
AC = air conditioning
AT = automatic tensioner
b = belt
bp = transition between belt and pul- ley
BSG = belt-starter generator
CS = crankshaft
eBSG/CS = error of belt-starter generator
and crankshaft control
FpAT = force applied on automatic belt tensioner
idk = direct current (k = BSG, CS) iqk = quadrature current (k =
BSG, CS)
IDL = idler
IBSG/CS = current on belt-starter generator and crankshaft
ICScont = control current on crankshaft
Jpi, Cpi, Kpi = rotational inertia, viscous
damping and stiffness of i-th pulley(i = AC, BSG,CS,IDL)
Jbi, Cbi, Kbi = rotational inertia, viscous damp-
ing and stiffness of the arc of contact of i-th pulley (i = AC, BSG,CS,IDL)
JpAT , CpAT , KpAT = rotational inertia, viscous damp-
ing and stiffness of the auto- matic tensioner pulley
Kek = electromagnetic motor constant (k = BSG, CS)
Ldk = direct inductance (k =
BSG, CS)
Lqk = quadrature inductance (k =
BSG, CS)
maAT , CaAT , KaAT = mass, viscous damping and stiff-
ness of the arm of the automatic tensioner
Mk = torque applied by the motor on the k-th shaft (k = BSG, CS)
Mpi = torque applied by the belt on i-th pulley(i = AC, BSG,CS,IDL)
MCS = output torque from crankshaft motor
MBSGact/cont/ref = actual, control and reference
torque on belt-starter generator