Fiume, Orazio

Torsional stress damping system of a parking wheel (W), wherein the parking wheel is associated with a relative drive shaft (TS) by means of a splined coupling, wherein the splined coupling is made between a torsionally elastic sleeve (S) and the drive shaft, wherein the sleeve and the drive shaft are coupled by means of a first and a second splined coupling (S1, S2) appropriately spaced axially from each other, wherein the parking wheel is associated with the sleeve in correspondence with the second splined coupling (S2) and wherein the first splined coupling (S1) defines a first value of connection stiffness between the drive shaft and the sleeve, greater than a second value of stiffness defined by the second splined coupling (S2).

Hybrid propulsion system comprising an internal combustion engine (E) equipped with a crankshaft (KS), a flywheel (FL) designed to be permanently attached to said crankshaft (KS), a torsional decoupler (SD, TS) operatively associated with the flywheel (FL) arranged to rotate a shaft (SS) comprising a first end (SS1), fixed in rotation with the torsional decoupler, and a second end (SS2) opposite the first end, fixed in rotation with a bushing (S) connecting to a transmission (TRM), an electric motor (EM) comprising a rotor (RT) operatively connected to said transmission, in which the rotor is operatively fixed to said connecting bushing (S) by means of an elastomeric coupling (EC) and in which the shaft is coaxial with the rotor and passes through a central opening in the rotor.

Integrated railway monitoring system comprising an infrastructure housed in a railway track (SF), wherein the infrastructure comprises rails, poles (P) supporting the electrification of the railway track, and optical devices (OS1, OS2) associated with the poles, and a data network (RTR) arranged to connect the optical devices to each other and to at least one central point (PC), wherein the optical devices are uniformly distributed along at least one section of the railway track, wherein the system is configured to provide railway navigation aid functionality when a train is identified, provide safety aid functionality when a human figure, object, or animal is detected on the railway track, and provide diagnostic and infrastructure monitoring functionality when nothing is detected on the railway track.

Electric axle (EA) for industrial or commercial vehicle comprising a differential (DF) equipped with a crown (DFC) and two half-shafts (HS) to drive in rotation as many vehicle wheels (W), a first electric machine (EM) having a first hollow drive shaft (PS), having a first end (PSa) connectable to a first wheel (1) by means of a first engagement device (S1), and in which, in the drive shaft, a transmission shaft (TS) is coaxially inserted having a first end (Tsa) on which said first wheel (1) is fixed and an output wheel (Wout) which meshes with the crown (DFC) of the differential, a hollow shaft (HWS) fitted on one of the two half-shafts (HS) of the differential having a first end (HWSa), proximal to the differential and a second end (HWSb) distal to the differential, in which a second wheel (2) is fixed on the first end (HWSa) which meshes with said first wheel (1), and on the At the second end (EWSb), a third gear (3) is fixed, which engages a fourth gear (4) that can be connected to a second end (PSb), opposite the first end (PSa), of the crankshaft (PS) by means of a second engagement device (S2).

Lubricating oil distributor (OD) for a mechanical device equipped with bearings and gear wheels comprising a bell (B) defined by a roughly flat base (F) and an annular lip (L) attached to the perimeter of a face (Fl) of the base, wherein the base is equipped with a central opening (CH), an annular reservoir (RS) attached to the face (Fl) intermediately between the central opening and the lip, wherein the reservoir has an inlet opening (IN) and an outlet opening (OUT), and a bracket (S) attached to said face of the base at said inlet opening.

Diagnostic method of a liquefied natural methane vehicle fuel system of an internal combustion engine operated by computer, the method comprising the following steps: (Step 1) first acquisition of a first methane level value and related timestamp, (Step 2) second acquisition of a second methane level and related timestamp and of the methane consumption between the first and second acquisition; (Step 3) Calculate a resulting level variation value net of the engine's methane consumption. (Step 4) Acquire at least one temperature value indicative of a cold engine condition. (Step 5) Verify a first condition: if said resulting variation value exceeds a first threshold (Cond1 = yes). Also verify a second condition: if the engine is in cold engine conditions based on at least one temperature value (Cond2 = yes). If both the first and second conditions are met, then (Step 6) Verify whether said time interval (Dt) is greater than a predetermined time threshold (Th). If so, (Step 6 = yes). Then (Step 7) Report that the vehicle has been left stationary for an excessive period with a full tank.

Electric axle (EA) for industrial or commercial vehicles comprising a differential (DIF) equipped with an input port and half-shafts (HS) to rotate corresponding vehicle wheels (W), a first electric machine (EM1, EM2) having a drive shaft, a transmission comprising: an epicyclic gear train (PG) coaxial with said half-shafts (HS) and comprising a single output port (SC) coinciding with said input port of the differential, a first input port (M1, S) and a second input port (M3, SC) selectively connectable to a first hollow shaft (S2) coaxial with said half-shafts (HS), wherein said first and second input ports are selectable by means of a first selection device (CL1) and wherein said first shaft (S2) is operably connectable to said first electric machine by means of a second selection device (CL2).

The present invention relates to a method (1) of controlling cylinder activation and deactivation in an internal combustion engine of a vehicle, said method comprising the steps of: - detecting an engine motoring condition (2); - deactivating all the engine cylinders (3) when said motoring condition is detected; - re-activating (4) at least one of the engine cylinders if: • a high load request to the internal combustion engine approaching is predicted (5), and/or • the speed of an internal combustion engine turbine drops below a predetermined turbine speed threshold (6). The present invention further relates to a system of controlling cylinder activation and deactivation in an internal combustion engine, comprising a control unit configured to perform the steps of said method.

Electric machine for automotive applications comprising a stator (1) including a housing (10) arranged to envelope a magnetic stator (20) arranged to be fitted within the housing, wherein the magnetic stator includes at least one longitudinal ridge (R) projecting radially from the magnetic stator and the housing includes a corresponding longitudinal slot such that the coupling of the at least longitudinal ridge and the corresponding longitudinal slot prevents a rotation of the magnetic stator with respect to the housing.

Computer-controlled diagnostic method for a natural gas fuel system of an internal combustion engine, wherein the fuel system comprises a rail, the method comprising the following sequential steps: acquisition of a succession of rail pressure measurements over a predetermined observation time interval (Total Engine Hours) while the engine is operating; comparison of each measurement with a pressure threshold (Th2); calculation of a first indicator (RI) representing a fraction of said predetermined observation time interval, indicative of "normal" fuel system operation, wherein said indicator is calculated based on all comparisons relating to each measurement in the sequence of measurements; calculation of a second indicator (IF) as a gradient of the first indicator over two distinct predetermined observation time intervals; calculation of a key performance indicator (KPI) as a linear combination of the first and second indicators, wherein said key performance indicator indicates a current condition and a forecast of a change from the current condition of the fuel system.