Electromagnetically-operated coupling device (14) for selectively connecting and disconnecting a first rotating member (10) and a second rotating member (12) in a driveline of a vehicle is disclosed, wherein the first and the second rotating members (10, 12) are coaxial with each other and rotatable about a same*axis of rotation (x). The coupling device (14) comprises: an engagement sleeve (16) provided with a control disk (20) made of a ferromagnetic material, the engagement sleeve (16) being axially slidable between an engaged position and a disengaged position; and a control system for controlling the sliding movement of the engagement sleeve (16) between said engaged and disengaged positions. The control system comprises a pair of magnetic coils (28, 30) which are placed on opposite sides of the control disk (20), coaxially therewith, and are arranged to be selectively activated by an electric current to generate a magnetic force acting on the control disk (20) to axially move the control disk (20), and therefore also the engagement sleeve (16), in either directions. The control system further comprises an elaboration unit (34) for controlling activation and deactivation of the magnetic coils (28, 30) based on the axial position of the engagement sleeve (16).
The synchronizer (10) comprises: a hub (18) provided with external teeth (22); an actuating sleeve (24) provided with internal teeth (26) meshing with the external teeth (22) of the hub (18); at least one synchronizing ring (28) that is provided with external teeth (30) arranged to mesh with the internal teeth (26) of the actuating sleeve (24) and has, on its radially internal side, a friction surface (32) arranged to cooperate with a friction surface (40) associated to a respective gear wheel (14, 16) to allow generation of a friction torque between the synchronizing ring (28) and the associated gear wheel (14, 16); a pre-synchronization system comprising a plurality of blocking elements (42) operatively placed between the hub (18) and the actuating sleeve (24); and a phasing system (60, 62; 70, 72, 74) arranged to ensure a given angular positioning of the synchronizing ring (28) with respect to the hub (18) about the longitudinal axis (x). The phasing system (60, 62; 70, 72, 74) comprises a plurality of first cavities (62; 74) provided on an internal cylindrical surface (66) of a ring gear (68) of the hub (18) forming the external teeth (22) of the hub (18), each of said first cavities (62; 74) having an arc- or round-shaped cross-section, in particular a semi-circular cross-section.
F16D 23/06 - Arrangements for synchronisation with an additional friction cluch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Engines (except for land vehicles); joints and trans-mission components (except those for land vehicles); agricultural tools other than those operated manually; egg incubators; vending machines; gears other than those for land vehicles; transmission gears for machines; transmission shafts other than those for land vehicles; steering boxes for machines; hydraulic, mechanical and electrical gearboxes other than for land vehicles; torque converters other than those for land vehicles; axles other than those for land vehicles; gearboxes [parts of machines] other than for land vehicles; gearmotors other than those for land vehicles; synchronizers other than those for land vehicles; clutches other than those for land vehicles; differentials other than those for land vehicles; transmission shafts for machines, hydraulic and mechanical gear shifts for machines; machine parts, namely, reduction gears and motor reducers; machine transmission parts, namely, synchronizers; machine parts, namely, differentials; motors other than for land vehicles; motors and engines for machines and replacement parts therefor except for land vehicles; machine couplings and trans-mission components for machines except for land vehicles; transmissions and transmission parts for machines, namely, gears and speed change gears, planetary gears, angular gears, two-speed and multi-speed change gears, clutches, and associated intermediate gears for machines; motors for machines except for land vehicles; wheel, track and drum drives for machines except for land vehicles; shaft output drives for machines except for land vehicles; spindle output drives for machines except for land vehicles; compact and integrated drives for machines except for land vehicles; jacking drives for machines except for land vehicles; hoist drives for machines except for land vehicles; winch drives for machines except for land vehicles; electric drives for machines except for land vehicles; compact double and triple reduction drives for machines except for land vehicles; yaw drives, main drives, and pitch drives for machines, namely, for wind turbines; gears of all types for machines; gearboxes of all types for machines except for land vehicles, namely, planetary gearboxes for machines, right angle drives for machines, transfer cases for machines; two-speed and multi-speed gearboxes and transmissions for machines, gear heads for machines, and, gear reducers for machines except for land vehicles; two-speed mechanical drive power transmitting mechanisms in the nature of gear reduction units for machines except for land vehicles; two-speed hydraulic drive power transmitting mechanisms in the nature of gear reduction units for machines except for land vehicles; two-speed electrical drive power transmitting mechanisms in the nature of gear reduction units for machines except for land vehicles; add-on adapters for additional gear reduction of gear reducers for machines except for land vehicles; spring applied hydraulically released static and dynamic brakes for machines except for land vehicles; final drives, and planetary gear drives except for land vehicles; gears for machines except for land vehicles; shafts for machines except for land vehicles; differentials of all types and replacement parts therefor for machines except for land vehicles; hydraulic, electric and mechanical apparatus for gear changing for machines except for land vehicles; torque converters for machines except for land vehicles, reduction gears for machines except for land vehicles, gear and engine torque reducers for machines except for land vehicles, apparatus for gear synchronization for machines except for land vehicles; multi-speed and two-speed gear changers used to propel or position off-road machinery or components thereof and to increase, decrease or otherwise change or alter the torque or speed of the machine or components thereof; and, force transfer mechanisms for mechanical branch drives in the form of an intermediate gear for machines except for land vehicles; and, rear wheel drives for machines except for land vehicles. Vehicles; apparatus for locomotion by land, air or water; torque converters for land vehicles; transmission shafts for land vehicles; gears for land vehicles; torque con-verters for land vehicles; gears for land vehi-cles; steering boxes for land vehicles; hydraulic, mechanical, automatic, hybrid and electric gearboxes for land vehicles; axles for land vehicles; gearboxes [parts of machines] for land vehicles; gearboxes and gearmotors for land vehicles; synchronizers for terrestrial vecules; differentials for land vehicles; axles for land vehicles and other than for land vehicles, especially, passenger cars, trucks, utility vehicles, forklift trucks; land vehicle parts, namely, transmission synchronizers; motors and engines for land vehicles, namely, trucks and off-road vehicles; machine couplings and transmission components for land vehicles, namely, gear reducers for land vehicles; clutches for land vehicles; gears of all types for land vehicles; gearboxes for land vehicles, namely, planetary gearboxes, right angle drives, two-speed gearboxes, gear heads, and, gear reducers for land vehicles; two speed and multi-speed mechanical, electric and hydraulic drive power transmitting mechanisms in the nature of gear reduction units for land vehicles; wheel, track and drum drives for land vehicles; shaft output drives for land vehicles; spindle output drives for land vehicles; compact drives for land vehicles; winch drives for land vehicles; jacking drives for land vehicles; electric drives for land vehicles; compact double and triple reduction drives for land vehicles; add-on adapters for further gear reduction of gear reducers for land vehicles; spring applied hydraulically released static and dynamic brakes for land vehicles; final drives and planetary gear drives for land vehicles for propelling the land vehicle; gears, shafts, gear differentials of all types and components thereof for land vehicles; parts of vehicles of all kinds for locomotion off-highway by land, namely, gears for vehicles, gearing for vehicles, and gear assemblies for vehicles and replacement parts for vehicles, multi-speed and two-speed gear changers used to propel or position vehicles or components thereof and to increase, decrease, or otherwise change or alter the torque or speed of the vehicle or the components thereof in vehicles used on land; transmission components for land vehicles, namely, gears, speed change gears, planet gears, angular gears, two-speed and multi-speed change gears and transmissions, gear heads and associated intermediate gears; force transfer mechanisms for mechanical branch drives in the form of intermediate gears for land vehicles; rear wheel drives and planetary drives for land vehicles; hydraulic, electric and mechanical apparatus for gear changing for land vehicles; and, torque converters, axles, reduction gears, gear and engine torque reducers for land vehicles, namely, trucks and off-highway vehicles.
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Engines (except for land vehicles); joints and trans-mission components (except those for land vehicles); agricultural tools other than those operated manually; egg incubators; vending machines; gears other than those for land vehicles; transmission gears for machines; transmission shafts other than those for land vehicles; steering boxes for machines; hydraulic, mechanical and electrical gearboxes other than for land vehicles; torque converters other than those for land vehicles; axles other than those for land vehicles; gearboxes [parts of machines] other than for land vehicles; gearmotors other than those for land vehicles; synchronizers other than those for land vehicles; clutches other than those for land vehicles; differentials other than those for land vehicles; transmission shafts for machines, hydraulic and mechanical gear shifts for machines; machine parts, namely, reduction gears and motor reducers; machine transmission parts, namely, synchronizers; machine parts, namely, differentials; motors other than for land vehicles; motors and engines for machines and replacement parts therefor except for land vehicles; machine couplings and trans-mission components for machines except for land vehicles; transmissions and transmission parts for machines, namely, gears and speed change gears, planetary gears, angular gears, two-speed and multi-speed change gears, clutches, and associated intermediate gears for machines; motors for machines except for land vehicles; wheel, track and drum drives for machines except for land vehicles; shaft output drives for machines except for land vehicles; spindle output drives for machines except for land vehicles; compact and integrated drives for machines except for land vehicles; jacking drives for machines except for land vehicles; hoist drives for machines except for land vehicles; winch drives for machines except for land vehicles; electric drives for machines except for land vehicles; compact double and triple reduction drives for machines except for land vehicles; yaw drives, main drives, and pitch drives for machines, namely, for wind turbines; gears of all types for machines; gearboxes of all types for machines except for land vehicles, namely, planetary gearboxes for machines, right angle drives for machines, transfer cases for machines; two-speed and multi-speed gearboxes and transmissions for machines, gear heads for machines, and, gear reducers for machines except for land vehicles; two-speed mechanical drive power transmitting mechanisms in the nature of gear reduction units for machines except for land vehicles; two-speed hydraulic drive power transmitting mechanisms in the nature of gear reduction units for machines except for land vehicles; two-speed electrical drive power transmitting mechanisms in the nature of gear reduction units for machines except for land vehicles; add-on adapters for additional gear reduction of gear reducers for machines except for land vehicles; spring applied hydraulically released static and dynamic brakes for machines except for land vehicles; final drives, and planetary gear drives except for land vehicles; gears for machines except for land vehicles; shafts for machines except for land vehicles; differentials of all types and replacement parts therefor for machines except for land vehicles; hydraulic, electric and mechanical apparatus for gear changing for machines except for land vehicles; torque converters for machines except for land vehicles, reduction gears for machines except for land vehicles, gear and engine torque reducers for machines except for land vehicles, apparatus for gear synchronization for machines except for land vehicles; multi-speed and two-speed gear changers used to propel or position off-road machinery or components thereof and to increase, decrease or otherwise change or alter the torque or speed of the machine or components thereof; and, force transfer mechanisms for mechanical branch drives in the form of an intermediate gear for machines except for land vehicles; and, rear wheel drives for machines except for land vehicles. Vehicles; apparatus for locomotion by land, air or water; torque converters for land vehicles; transmission shafts for land vehicles; gears for land vehicles; torque con-verters for land vehicles; gears for land vehi-cles; steering boxes for land vehicles; hydraulic, mechanical, automatic, hybrid and electric gearboxes for land vehicles; axles for land vehicles; gearboxes [parts of machines] for land vehicles; gearboxes and gearmotors for land vehicles; synchronizers for terrestrial vecules; differentials for land vehicles; axles for land vehicles and other than for land vehicles, especially, passenger cars, trucks, utility vehicles, forklift trucks; land vehicle parts, namely, transmission synchronizers; motors and engines for land vehicles, namely, trucks and off-road vehicles; machine couplings and transmission components for land vehicles, namely, gear reducers for land vehicles; clutches for land vehicles; gears of all types for land vehicles; gearboxes for land vehicles, namely, planetary gearboxes, right angle drives, two-speed gearboxes, gear heads, and, gear reducers for land vehicles; two speed and multi-speed mechanical, electric and hydraulic drive power transmitting mechanisms in the nature of gear reduction units for land vehicles; wheel, track and drum drives for land vehicles; shaft output drives for land vehicles; spindle output drives for land vehicles; compact drives for land vehicles; winch drives for land vehicles; jacking drives for land vehicles; electric drives for land vehicles; compact double and triple reduction drives for land vehicles; add-on adapters for further gear reduction of gear reducers for land vehicles; spring applied hydraulically released static and dynamic brakes for land vehicles; final drives and planetary gear drives for land vehicles for propelling the land vehicle; gears, shafts, gear differentials of all types and components thereof for land vehicles; parts of vehicles of all kinds for locomotion off-highway by land, namely, gears for vehicles, gearing for vehicles, and gear assemblies for vehicles and replacement parts for vehicles, multi-speed and two-speed gear changers used to propel or position vehicles or components thereof and to increase, decrease, or otherwise change or alter the torque or speed of the vehicle or the components thereof in vehicles used on land; transmission components for land vehicles, namely, gears, speed change gears, planet gears, angular gears, two-speed and multi-speed change gears and transmissions, gear heads and associated intermediate gears; force transfer mechanisms for mechanical branch drives in the form of intermediate gears for land vehicles; rear wheel drives and planetary drives for land vehicles; hydraulic, electric and mechanical apparatus for gear changing for land vehicles; and, torque converters, axles, reduction gears, gear and engine torque reducers for land vehicles, namely, trucks and off-highway vehicles.
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Engines (except for land vehicles); joints and trans-mission components (except those for land vehicles); agricultural tools other than those operated manually; egg incubators; vending machines; gears other than those for land vehicles; transmission gears for machines; transmission shafts other than those for land vehicles; steering boxes for machines; hydraulic, mechanical and electrical gearboxes other than for land vehicles; torque converters other than those for land vehicles; axles other than those for land vehicles; gearboxes [parts of machines] other than for land vehicles; gearmotors other than those for land vehicles; synchronizers other than those for land vehicles; clutches other than those for land vehicles; differentials other than those for land vehicles; transmission shafts for machines, hydraulic and mechanical gear shifts for machines; machine parts, namely, reduction gears and motor reducers; machine transmission parts, namely, synchronizers; machine parts, namely, differentials; motors other than for land vehicles; motors and engines for machines and replacement parts therefor except for land vehicles; machine couplings and trans-mission components for machines except for land vehicles; transmissions and transmission parts for machines, namely, gears and speed change gears, planetary gears, angular gears, two-speed and multi-speed change gears, clutches, and associated intermediate gears for machines; motors for machines except for land vehicles; wheel, track and drum drives for machines except for land vehicles; shaft output drives for machines except for land vehicles; spindle output drives for machines except for land vehicles; compact and integrated drives for machines except for land vehicles; jacking drives for machines except for land vehicles; hoist drives for machines except for land vehicles; winch drives for machines except for land vehicles; electric drives for machines except for land vehicles; compact double and triple reduction drives for machines except for land vehicles; yaw drives, main drives, and pitch drives for machines, namely, for wind turbines; gears of all types for machines; gearboxes of all types for machines except for land vehicles, namely, planetary gearboxes for machines, right angle drives for machines, transfer cases for machines; two-speed and multi-speed gearboxes and transmissions for machines, gear heads for machines, and, gear reducers for machines except for land vehicles; two-speed mechanical drive power transmitting mechanisms in the nature of gear reduction units for machines except for land vehicles; two-speed hydraulic drive power transmitting mechanisms in the nature of gear reduction units for machines except for land vehicles; two-speed electrical drive power transmitting mechanisms in the nature of gear reduction units for machines except for land vehicles; add-on adapters for additional gear reduction of gear reducers for machines except for land vehicles; spring applied hydraulically released static and dynamic brakes for machines except for land vehicles; final drives, and planetary gear drives except for land vehicles; gears for machines except for land vehicles; shafts for machines except for land vehicles; differentials of all types and replacement parts therefor for machines except for land vehicles; hydraulic, electric and mechanical apparatus for gear changing for machines except for land vehicles; torque converters for machines except for land vehicles, reduction gears for machines except for land vehicles, gear and engine torque reducers for machines except for land vehicles, apparatus for gear synchronization for machines except for land vehicles; multi-speed and two-speed gear changers used to propel or position off-road machinery or components thereof and to increase, decrease or otherwise change or alter the torque or speed of the machine or components thereof; and, force transfer mechanisms for mechanical branch drives in the form of an intermediate gear for machines except for land vehicles; and, rear wheel drives for machines except for land vehicles. Vehicles; apparatus for locomotion by land, air or water; torque converters for land vehicles; transmission shafts for land vehicles; gears for land vehicles; torque con-verters for land vehicles; gears for land vehi-cles; steering boxes for land vehicles; hydraulic, mechanical, automatic, hybrid and electric gearboxes for land vehicles; axles for land vehicles; gearboxes [parts of machines] for land vehicles; gearboxes and gearmotors for land vehicles; synchronizers for terrestrial vecules; differentials for land vehicles; axles for land vehicles and other than for land vehicles, especially, passenger cars, trucks, utility vehicles, forklift trucks; land vehicle parts, namely, transmission synchronizers; motors and engines for land vehicles, namely, trucks and off-road vehicles; machine couplings and transmission components for land vehicles, namely, gear reducers for land vehicles; clutches for land vehicles; gears of all types for land vehicles; gearboxes for land vehicles, namely, planetary gearboxes, right angle drives, two-speed gearboxes, gear heads, and, gear reducers for land vehicles; two speed and multi-speed mechanical, electric and hydraulic drive power transmitting mechanisms in the nature of gear reduction units for land vehicles; wheel, track and drum drives for land vehicles; shaft output drives for land vehicles; spindle output drives for land vehicles; compact drives for land vehicles; winch drives for land vehicles; jacking drives for land vehicles; electric drives for land vehicles; compact double and triple reduction drives for land vehicles; add-on adapters for further gear reduction of gear reducers for land vehicles; spring applied hydraulically released static and dynamic brakes for land vehicles; final drives and planetary gear drives for land vehicles for propelling the land vehicle; gears, shafts, gear differentials of all types and components thereof for land vehicles; parts of vehicles of all kinds for locomotion off-highway by land, namely, gears for vehicles, gearing for vehicles, and gear assemblies for vehicles and replacement parts for vehicles, multi-speed and two-speed gear changers used to propel or position vehicles or components thereof and to increase, decrease, or otherwise change or alter the torque or speed of the vehicle or the components thereof in vehicles used on land; transmission components for land vehicles, namely, gears, speed change gears, planet gears, angular gears, two-speed and multi-speed change gears and transmissions, gear heads and associated intermediate gears; force transfer mechanisms for mechanical branch drives in the form of intermediate gears for land vehicles; rear wheel drives and planetary drives for land vehicles; hydraulic, electric and mechanical apparatus for gear changing for land vehicles; and, torque converters, axles, reduction gears, gear and engine torque reducers for land vehicles, namely, trucks and off-highway vehicles.
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Gears other than for land vehicles; transmission shafts other than for land vehicles; hydraulic and mechanical gear changing devices, namely, transmissions, other than for land vehicles; torque converters other than for land vehicles; motor reducers being machine parts other than for land vehicles; synchronous motors other than for land vehicles; differentials being machine parts other than for land vehicles Gears for land vehicles; transmission shafts for land vehicles; steering gear casings for land vehicles; hydraulic and mechanical gear changing devices, namely, transmissions for land vehicles; torque converters for land vehicles; axles for land vehicles; reduction gears in the form of structural car parts; reduction gears and motor reducers in the form of structural parts for land vehicles; synchronizers in the form of structural parts for land vehicles; differentials for land vehicles; steering gear casings for cars
7.
TRANSMISSION SYSTEM FOR A HYBRID PROPULSION VEHICLE
The transmission system comprises a mechanical gearbox (10) housed in a gear casing (16) and connecting means (12) for connecting the gearbox (10) to the electrical machine (ME) of the vehicle. The gearbox (10) comprises a single primary shaft (18) extending along a first axis (X), a plurality of driving gearwheels (34, 36, 38, 40, 42) carried by the primary shaft (18), and a coupling device (22) for connecting the primary shaft (18) for rotation with a crankshaft (24) of an internal combustion engine (MT) of the vehicle. The gearbox (10) further comprises a single secondary shaft (26) extending along a second axis (Y) arranged parallel to, and spaced from, the first axis (X), and a plurality of driven gearwheels (48, 50, 52, 54, 56) carried by the secondary shaft (26) and permanently meshing each with a respective driving gearwheel (48, 50, 52, 54, 56) to provide a respective gear. A first driving gearwheel (34) and an adjacent second driving gearwheel (36) form a double gearwheel (44) which is idly mounted on the primary shaft (18) and is connectable for rotation with this shaft through a first engagement sleeve (46). A first driven gearwheel (48) and an adjacent second driven gearwheel (50) permanently meshing with the first driving gearwheel (34) and with the second driving gearwheel (36),, respectively, are idly mounted on the secondary shaft (26) and are selectively connectable for rotation with this shaft by means of a second engagement sleeve (58). The connecting means (12) connect the electrical machine (ME) with the double gearwheel (44) and are arranged inside the gear casing (16).
B60K 6/40 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
B60K 6/547 - Transmission for changing ratio the transmission being a stepped gearing
B60K 6/36 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
F16H 3/089 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved
The friction clutch comprises: a driving part comprising at least one first friction element; a driven part comprising a hub and at least one second friction element drivingly connected for rotation with the hub; at least one spring configured to press the friction elements of the driving part and of the driven part against each other by applying an elastic force on these friction elements; and an actuation unit arranged to bring about opening of the friction clutch by applying directly or indirectly on the at least one spring an actuating force directed in the opposite direction to the elastic force so as to move the friction elements away from each other. The actuation unit comprises a thrust bearing, at least one force transmission member and a hollow actuating member arranged to apply the actuating force on the at least one spring via the thrust bearing and the at least one force transmission member. The hollow actuating member is arranged on the opposite side of the hub to the at least one spring. The at least one force transmission member extends through the hub.
F16D 13/56 - Clutches with multiple lamellae with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member in which the clutching pressure is produced by springs only
F16D 13/50 - Friction clutches with axially-movable clutching members with flat clutching surfaces, e.g. discs in which two axially-movable members, of which one is attached to the driving side and the other to the driven side, are pressed from one side towards an axially-located member with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member in which the clutching pressure is produced by springs only
A transmission includes a main gearbox and an electric machine. The main gearbox has a primary shaft, a secondary shaft and gear sets, each having a driving gearwheel carried by a respective primary shaft and a driven gearwheel carried by a respective secondary shaft. A first gearwheel and a second gearwheel meshing with each other are idly mounted on the primary shaft and on the secondary shaft, respectively, and are selectively connectable for rotation with the respective shaft by a first coupling device and of a second coupling device, respectively. The electric machine is releasably connected to the first gearwheel or to the second gearwheel, such that with the first coupling device in an engaged position the electric machine is able to transmit torque to the primary shaft on which the first gearwheel is mounted, while with the second coupling device in an engaged position, the electric machine is able to transmit torque to the secondary shaft on which the second gearwheel is mounted. The transmission further includes a secondary gearbox with two or more gears between the electric machine and the first or the second gearwheel.
F16H 3/72 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
B60K 6/547 - Transmission for changing ratio the transmission being a stepped gearing
F16H 37/04 - Combinations of toothed gearings only
F16H 3/089 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears all of the meshing gears being supported by a pair of parallel shafts, one being the input shaft and the other the output shaft, there being no countershaft involved
F16H 3/08 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts
10.
Hybrid propulsion systems for vehicles and transmissions for propulsion systems
Hybrid propulsion systems are provided which include an internal combustion engine, an electric machine, a primary shaft adapted to receive the rotary motion from the electric machine, a secondary shaft, a differential for transmitting the rotary motion to the wheels of an axle of the vehicle, a first transmission mechanism interposed between the primary shaft and the secondary shaft for transmitting the rotary motion between the primary shaft and the secondary shaft, a second transmission mechanism interposed between the secondary shaft and the differential for transmitting the rotary motion between the secondary shaft and the differential, and an overrunning clutch associated to the secondary shaft, whereby the secondary shaft receives the rotary motion from the internal combustion engine via the overrunning clutch.
The transmission (10) comprises a main gearbox (12), a first electric machine (14) and a second electric machine (16). The main gearbox (12) is a mechanical gearbox with a plurality of gears and comprises a primary shaft (24) adapted to be connected to a shaft of the internal combustion engine of the vehicle and a secondary shaft (26) adapted to be connected to the vehicle wheels. The transmission (10) further comprises a first coupling de- vice (74) interposed between the first electric machine (14) and the primary shaft (24) and a second coupling device (74) interposed between the second electric machine (16) and the secondary shaft (26). The first electric machine (14) is releasably connected, through the first coupling device (74), to the primary shaft (24) by means of a first connection gear set (56, 60, 62) including a first gearwheel (60) mounted on the primary shaft (24). The second electric machine (16) is releasably connected, through the second coupling device (74), to the secondary shaft (26) by means of a second connection gear set (64, 68, 70) including a second gearwheel (68) mounted on the secondary shaft (26). The transmission (10) further comprises a first secondary gearbox (28) with two or more gears interposed between the first electric machine (14) and the first gearwheel (60), and a second secondary gearbox (30) with two or more gears interposed between the second electric machine (16) and the second gearwheel (68).
A transmission includes a main gearbox and an electric machine. The main gearbox has a primary shaft, a secondary shaft and gear sets, each having a driving gearwheel carried by a respective primary shaft and a driven gearwheel carried by a respective secondary shaft. A first gearwheel and a second gearwheel meshing with each other are idly mounted on the primary shaft and on the secondary shaft, respectively, and are selectively connectable for rotation with the respective shaft by a first coupling device and of a second coupling device, respectively. The electric machine is releasably connected to the first gearwheel or to the second gearwheel, such that with the first coupling device in an engaged position the electric machine is able to transmit torque to the primary shaft on which the first gearwheel is mounted, while with the second coupling device in an engaged position, the electric machine is able to transmit torque to the secondary shaft on which the second gearwheel is mounted. The transmission further includes a secondary gearbox with two or more gears between the electric machine and the first or the second gearwheel.
F16H 3/72 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
13.
Two-gear transmissions for electric machines with systems for controlling angular play
Two-gear transmissions for electric machines are provided, which include a primary shaft; a secondary shaft; a first gear set which includes a first driving gearwheel and a first driven gearwheel, one of these gearwheels including a first hub and a ring gear; a second gear set which includes a second driving gearwheel and a second driven gearwheel; an overrunning clutch interposed between the ring gear and the first hub; a first coupling device arranged to connect the ring gear for rotation directly with the respective shaft and comprises a second hub and a sliding sleeve; a second coupling device arranged to connect either the second driving gearwheel or the second driven gearwheel for rotation with the respective shaft; connection elements connecting the first hub for rotation with the second hub; and elastic elements applying on the first and second hubs a biasing torque to urge them towards an end-of-travel position.
F16H 3/08 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts
F16H 3/10 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts with one or more one-way clutches as an essential feature
The transmission comprises: a primary shaft; a secondary shaft; a gearing of first speed comprising a first driving gearwheel carried by the primary shaft and a first driven gearwheel carried by the secondary shaft and permanently meshing with the first driving gearwheel; a gearing of second speed comprising a second driving gearwheel carried by the primary shaft and a second driven gearwheel carried by the secondary shaft and permanently meshing with the second driving gearwheel; an overrunning clutch associated to one of the first driving gearwheel and first driven gearwheel to allow the transmission of the torque via the gearing of first speed only in the direction from the primary shaft to the secondary shaft; a first coupling device arranged to connect either of the first driving gearwheel and first driven gearwheel, namely the gearwheel to which the overrunning clutch is associated, for rotation directly with the respective shaft, so as to allow the transmission of the torque via the gearing of first speed also in the direction from the secondary shaft to the primary shaft; and a second coupling device arranged to connect either of the second driving gearwheel and second driven gearwheel for rotation with the respective shaft. The first and second coupling devices are both shiftable between an open condition and a closed condition independently of each other. The first coupling device is normally open, whereas the second coupling device is normally closed.
F16H 3/08 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts
F16H 3/10 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts with one or more one-way clutches as an essential feature
F16H 48/08 - Differential gearings with gears having orbital motion with orbital conical gears
15.
Seven-gear gearbox for a motorcar double clutch transmission
The gearbox comprises: a first inner input shaft (10) which carries driving gearwheels (21, 23, 27) associated to the odd gears (I, III, V, VII) and fast for rotation therewith; a second outer input shaft (12) which is coaxial with the first and carries driving gearwheels (22, 24) associated to the even gears (II, IV, VI) and to the reverse gear (R) and fast for rotation therewith; and first and second output shafts (14, 16) carrying idle driven gearwheels (31-38). A first driving gearwheel (21) meshes only with the driven gearwheel (31) of first gear (I); a second driving gearwheel (23) meshes both with the driven gearwheel (33) of third gear (III) and with the driven gearwheel (35) of fifth gear (V); a third driving gearwheel (27) meshes only with the driven gearwheel (37) of seventh gear (VII); a fourth driving gearwheel (24) meshes both with the driven gearwheel (34) of fourth gear (IV) and with the driven gearwheel (36) of sixth gear (VI); and a fifth driving gearwheel (22) meshes with the driven gearwheel (32) of second gear (II) and, via this latter, with the driven gearwheel (38) of reverse gear (R).
F16H 3/08 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously- meshing gears, that can be disengaged from their shafts
