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A mathematical model of the generator/starter for automotive vehicles

Tutaj J.

Journal of KONES

2009

Vol. 16, No. 1

495-506

In the paper has been formulated mathematical models of the not only AC commutatorless electromagnetically acited generator/starter but also brushless AC-DC/DC-AC commutator electromagnetically excited generator/starter, both based on the double electrical machine, analogous to the mathematical model of the brushed l AC-DC commutator electromagnetically excited generator with a rotating AC-DC mechanoelectrical commutator toking into consideration equations of unholonomic constraints of the AC-DC commutator, a set of the second-order Euler-Lagrange differential equations of dynamics in a matrix notation for the AC commutatorless electromagnetically-excited generator can be written. After taking into account the equations of unholonomic constraints of the power diode and/or MOSFET electronic commutators in the differential equations of dynamics one can be obtained differential equations of dynamics, establishing of a mathematical model of AC-DC/DC-AC electronic-commutator electromagnetically-excited generator/starter with the diode and/or MOSFET AC-DC/DC-AC \ electronic commutator, acting as the double electrical machine's diode and/or MOSFET rectifier (during generating on electrical energy) and/or inverter (during not only cranking of the internal combustion engine, but also travelling of an automotive vehicles as the hybrid-electric vehicle.