Abstract: The invention relates to a system for controlling a thermal engine with valves, that comprises an engine control unit (1) and a plurality of valve actuators (3), wherein the engine control unit is connected to a communication bus (2) and the actuators are distributed into at least two sets each comprising a connection interface (4) to the communication bus, the engine control unit being designed so as to define actuator driving instructions and to transmit into the bus and for each set an individualised frame including the driving instructions for the related set.

Abstract: The invention relates to a control unit (19, 20) for one or more electromagnetic actuators (15, 16) of the valve (13, 14) of a heat engine, wherein said control unit can be connected by linking means (24, 25) to a main management unit (21) of the heat engine, the control unit (19, 20) acting under the action of at least a first driving program for driving the actuator based on a signal transmitted to the control unit by the main management unit via the linking means. According to the invention, the control unit includes a memory (26, 27) containing backup information and, in the case of a signal interruption, the control unit runs a second driving program for driving the actuator based on workaround information. The invention also relates to different assemblies of such control units and such electromagnetic actuators.

Abstract: The invention relates to a system for controlling a thermal engine with valves, that comprises an engine control unit (1) and a plurality of valve actuators (3), wherein the engine control unit is connected to a communication bus (2) and the actuators are distributed into at least two sets each comprising a connection interface (4) to the communication bus, the engine control unit being designed so as to define actuator driving instructions and to transmit into the bus and for each set an individualised frame including the driving instructions for the related set.