| Abstract |
Advanced control for automotive is one of the
most promising research topic in the forthcoming decade.
Actually, the long-term target is the substitution of most
hydraulic car systems with their electronic counterparts. A
bright example is set by the steering function, which has
passed from pure mechanical to power assisted and recently
to pure electrically power assisted function. The next step,
the full electronic steering (Steer-By-Wire, SBW), is in
progress. Definitively, it is going to substitute the
mechanical connection with the steering wheel by wiretransmitted
digital signals to one or more remote electric
motors. Obviously, any innovative control strategy needs
thorough hardware verification. At the early stages, or
whether a real car prototype was not available, it is common
practice to use hardware-in-the-loop (HIL) simulators, for
fast control prototyping. In this frame, as proposed here, a
high dynamic electric drive can virtually reproduce the real
nonlinear load, represented by the steering chain and other
external torque contributes. The paper presents the model
details, the system architecture as well as the experimental
validation of the complete HIL simulator. |
