Inverse dynamic simulation of non-quadratic MIMO powertrain models -Application to hybrid vehicles
The method for stable inversion of nonlinear systems
has earlier been demonstrated as an efficient tool in inverse
dynamic vehicle propulsion simulation. However, that method is
restricted to quadratic systems, i.e. systems with equally many
inputs and outputs. Here that restriction is relaxed for typical
vehicle propulsion simulation where the number of inputs, e.g.
accelerator pedal and brake pedal, are greater than the number
of outputs, e.g. vehicle speed. Also restrictions to states and
inputs resulting in time varying system order and relative degree
is discussed. A model of a parallel hybrid vehicle is used for
demonstration.
Anders Fröberg
2006
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