Turin, Italy
Turin, Italy

Fiat S.p.A. , , is an Italian automobile manufacturer based in Turin. Fiat was founded in 1899 by a group of investors including Giovanni Agnelli. During its more than a century long history, Fiat has also manufactured railway engines and carriages, military vehicles, and aircraft. As of 2009, the Fiat group was the world's ninth largest carmaker and the largest in Italy. Wikipedia.


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A motor-vehicle front structure comprises a pair of longitudinal struts (L) having front-ends to which two strut plates (P1) are secured. A front cross-member (T1) is located forwardly of the strut plates (P1) and has ends provided with two rearwardly facing crash-box plates (P2), which are connected to said front cross-member by means of two crash-box structures (CB). The two crash-box plates (P2) are further connected to a lower auxiliary cross-member (T2) by means of two respective supports (S). A front-end unit for supporting one or more auxiliary motor-vehicle components comprises an upper cross-member (M1) and a lower cross-member (M2) made of plastic material. The crash-box plates (P2) are connected directly to the strut plates (P1), without the interposition of any elements forming part of the front-end unit therebetween. The upper and lower cross-members (M1, M2) of the front-end unit are made of elements which are separated from each other. The upper cross-member (M1) of the front-end unit is connected directly to the crash-box plates (P2), whereas the lower cross-member (M2) of the front-end unit is connected directly to the supports (S), through which it is connected to the crash-box plates (P2).


According to the method, to manufacture a rear frame side member for a vehicle, firstly a plate is formed by welding a front plate and a rear plate (31, 33) to each other, which are made of different steels so that the rear sheet (33) defines a rear segment of the side member (11) with greater deformability under strain with low directed longitudinally; a further sheet (32) is welded onto the front sheet (31) of the plate so as to form a flat blank (34), which is then hot pressed, so as to define a U-shaped cross section, and cooled so as to harden the steel of the front sheet (31).


Patent
Fiat Group | Date: 2015-02-04

A jack (1), defining a portable accessory for replacing a motor vehicle wheel, is adapted to be placed on the ground and has a scissors-like pantograph (10) provided with a first and a second arm (11,12) hinged to each other; the first and second arms (11,12) have respective lower end portions (14,15), which can be moved close or away by actuating a screw/nut-screw device (39); the second arm (12) is shorter than said first arm (11) and is provided with an upper end portion (31) hinged to an intermediate portion of the first arm (11); the jack (1) further has a supporting member (27), which is supported only by an upper end (26) of the first arm (11) and can rotate about an axis (29).


An internal combustion engine comprising:- a crankcase (12),- an oil sump (16),- at least one balancing shaft (20) rotatably mounted in a balancing tunnel (22) formed in the crankcase (12), wherein the balancing tunnel (22) has a first end portion (22a), a second end portion (22b) and a central portion (22c) extending between said first and second end portions (22a, 22b), and- a blow-by gas recirculation system (32) having an inlet channel (34) in communication with the oil sump (16), an outlet channel (36) in communication with an intake manifold (37), a centrifugal separator (38) arranged between said inlet channel (34) and said outlet channel (36), and at least one drainage channel (40) which opens into the oil sump (16) for discharging the separated liquid,wherein:- said inlet channel (34) of the blow-by gas recirculation system (32) communicates with said first end portion (22a) of the balancing tunnel (22),- said centrifugal separator (38) is housed in said second end portion (22b) of the balancing tunnel (22) and is driven in rotation by said balancing shaft (20), and- said outlet channel (36) of the blow-by gas recirculation system (32) communicates with a gas outlet (42) of said centrifugal separator (38), whereby, during operation, the flow of blow-by gas flows successively through the central portion (22) of the balancing tunnel (22) and the centrifugal separator (38) in the path from the inlet channel (34) to the outlet channel (36).


The present invention concerns a hand-operable device (1) for controlling a parking brake of a motor vehicle, said device (1) including: a lever (2) that is hand operable to control the parking brake and carries finger-operable control means (5); and a ratchet mechanism (6) that is coupled with the lever (2) and configured to constrain movement of said lever (2), said ratchet mechanism (6) comprising a sector gear (7) and a catch (8) configured to engage said sector gear (7), thereby constraining movement of the lever (2). The device (1) according to the present invention is characterized by further including an electric actuator (9) that is: connected to the control means (5) for being controlled by the latter; and configured to cause, in response to operation of the control means (5), disengagement of the catch (8) from the sector gear (7), thereby removing the constraint imposed by the ratchet mechanism (6) on the movement of the lever (2).


Patent
Fiat Group | Date: 2015-04-08

A supporting and braking assembly for a motor vehicle wheel has a supporting member, defined by a single piece adapted to be coupled to a suspension of the motor vehicle and provided with a central portion coupled to a rotating hub by means of a bearing; the supporting member is also provided with two arms (15, 16) which extend in cantilevered manner from the central portion in essentially radial directions and support respective studs, to which a floating caliper is slidingly coupled; the caliper (20) is arranged straddling a brake disc (19), fixed and coaxial with respect to the hub, and supports two brake pads (21, 22) arranged on opposite sides of the brake disc (19); at least one of the studs (27) is sized so as to transfer the tangential loads caused by braking from the caliper (20) directly onto the corresponding arm (15).


The invention regards a device (100) for the selection and the displacement of actuation members (26, 30, 35, 41) of a gearbox (4) for motor vehicles that comprises a plurality of forward gear ratios (I, II, III, IV, V, VI) and a reverse gear ratio (RM), each associated to a respective actuation member (26, 30, 35, 41). The device (100) includes a mechanism (101) for the assistance to the engagement of the reverse gear (RM).


A diesel engine system comprises a particulate filter (13) interposed in the exhaust line (9) of the engine, and a plurality of fuel injectors (2) associated with the cylinders of the engine. When a quantity of particulate accumulated within said filter is estimated to be greater than a threshold value, a control mode of the injectors (2) is activated which causes an automatic regeneration of the filter (13), by means of an increase of the temperature of the exhaust gases fed to the filter (13) which is sufficient for burning the particulate within the filter (13). A statistical model (S.M.) is applied which estimates the quantity of particulate accumulated in the filter (13) per time unit (soot-loading) on the basis of the operative conditions of the engine and the motor-vehicle (M.P.). The system comprises a sensor (T6) for sensing the temperature of the exhaust gases at the exit from the particulate filter. The above mentioned estimation of the particulate accumulated in the filter (soot-loading) is corrected after each regeneration of the filter, on the basis of a comparison between the real variation of said temperature during the regeneration as detected in the real case by said sensor (T6) and a stored reference variation (T6mod) of said temperature previously detected empirically during a regeneration with the filter (13) being empty, i.e. without particulate accumulated therein.


A shutter member that has a shutter with a substantially rigid wall, which has a substantially arc-shaped a side profile and a hole that is adapted to be engaged by a motor vehicle control lever. The substantially rigid wall is supported by a fastening device, fixing the shutter member to the control lever. The shutter is provided with a tab, which defines a longitudinal extension of the substantially rigid wall and is elastically flexible.


A manually operated lever device for actuating the parking brake of a motor-vehicle comprises a lever structure (2) with a base portion (3) tiltably mounted on a supporting bracket (6). The tiltable mounting comprises a first transverse axis (9) and a second transverse axis (10), both of which are defined at predetermined positions relative to the supporting bracket (6), and a third transverse axis (11) and a fourth transverse axis (12), which are defined on the base portion (3) in positions spaced apart from one another and are constrained to move along respective predetermined arched paths, substantially about the first and second transverse axes (9,10). The second transverse axis (10) is located in front of the first transverse axis, with reference to the direction of advancement of the motor-vehicle. When the lever structure is in its completely lowered position, the third and fourth transverse axes (11, 12) are each located in a position lower than that of the first and second transverse axes (9, 10), respectively. Furthermore, in said lowered position, two theoretical planes (13,14) containing the first and third transverse axes (9, 11) and the second and fourth transverse axes (10, 12), respectively, intersect along a theoretical axis (15) of instantaneous rotation of the lever structure (2), which is located above said first and second transverse axes (9, 10). The aforesaid arrangement is such that, when the lever structure (2) moves from its completely lowered position to its completely raised position, the lever arm (4) and its end handgrip (5) displace according to a substantially elliptical, and substantially vertically oriented, path, respectively, whilst said axis of instantaneous rotation (15) of the lever structure (2) moves downwards, also this following a substantially elliptical path.

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