Síndrome de Horner na infância: relato de caso

Abstract

Two piecewise linear time-invariant models of the automotivedriveline are presented and their hybrid structure due tothe presence of the dry clutch is highlighted. Based on a secondorder model, a slip control technique for the dry clutchengagement process is proposed. The feedback controlleris designed by using the crankshaft speed and the clutchdisk speed as measured variables. The controller guaranteescomfortable lock-up and avoids the engine stall by decouplingthe control of engine speed and slip speed. Theregulation of the slip acceleration at the lock-up is shownto reduce the undesired driveline oscillations. The criticalstanding start operating conditions are consider~d and numericalresults show the good performance of the proposedcontroller.