Patent ID: 6236554
Filing Date: 2001-05-22
Classification: F02D,G05F

Abstract:
Control device for electroactuators comprising:piloting means for the said electroactuators; andtiming means which generate timing signals (T) supplied to the said piloting means in order to control the said electroactuators;the said piloting means having a first and a second input terminal which are connected in use respectively to a first and a second terminal of an electrical energy source, and a plurality of pairs of output terminals, one for each of the said electroactuators; each pair of output terminals comprising a first and second output terminal between which a respective electroactuator is connected in use;the said piloting means comprising a plurality of control circuits, one for each electroactuator, receiving as input the said timing signals (T), and being activated selectively by the timing signals (T) themselves for control of the respective electroactuators; characterised in that each of the said control circuits comprises:first controlled switch means which are connected between a respective first output terminal, and, at least in pre-determined operating conditions, the first input terminal of the said piloting means, said first controlled switch means further comprising first transistor means;second controlled switch means which are connected between a respective second output terminal and the second input terminal of the said piloting means, said second controlled switch means further comprising second transistor means; andthird controlled switch means which are connected between the respective first output terminal and the second input terminal of the said piloting means.