1-13. (canceled)
14. A multi-group transmission (1, 1\u2032) comprising at least two transmission groups (2, 3) arranged in a drivetrain, and means being provided for traction force support during a gearshift operation, at least one electromagnetic clutch (16, 16\u2032) being provided as a change-under-load means by which, while bypassing a flow of force at least one main group (3) made as a gear-change transmission, an active connection is formed between a driveshaft (6) and either a main transmission shaft (30) or a transmission output shaft (36).
15. The multi-group transmission according to claim 14, wherein three automated transmission groups (2, 3,4) are provided, such that an upstream, two-gear splitter group (2) associated with a driveshaft (6) and a central, multi-gear main group (3) associated with a main transmission shaft (30) are made as countershaft transmissions with at least one countershaft (8, 8\u2032, 9, 9\u2032), and a downstream range group (4) made as a planetary transmission.
16. The multi-group transmission according to claim 14, wherein an intermediate gear is engaged by an intermediate-gear gearset (17, 17\u2032) that co-operates with the electromagnetic clutch (16, 16\u2032) and is driven by the at least one countershaft (8, 8\u2032, 9, 9\u2032).
17. The multi-group transmission according to claim 16, wherein the intermediate-gear gearset (17), with the electromagnetic clutch (16), is arranged downstream from the main group (3) and a fixed wheel (39, 41), mounted in a rotationally fixed manner on the at least one countershaft (8, 9), engages with a loose wheel (40) mounted to rotate on the main transmission shaft (30), the loose wheel (40) is connectable, by the electromagnetic clutch (16), in a rotationally fixed manner to the main transmission shaft (30).
18. The multi-group transmission according to claim 17, wherein the intermediate-gear gearset (17\u2032), with the electromagnetic clutch (16\u2032), is arranged downstream from a main group (4) and a fixed wheel (39\u2032, 41\u2032), mounted in a rotationally fixed manner on the at least one countershaft (8\u2032, 9\u2032), engages a loose wheel (40\u2032) mounted to rotate on the transmission output shaft (36), the loose wheel (40) is connectable, by the electromagnetic clutch (16\u2032), in a rotationally fixed manner to the transmission output shaft (36).
19. The multi-group transmission according to claim 17, wherein the electromagnetic clutch (16, 16\u2032) comprises a cup-like rotor (42) on a drive input side which surrounds a drive-output-side and is axially displaceable, a disk-shaped armature (44) and an electric energizing magnet (47), the rotor (42) is mounted for rotation on a drive-output-side shaft (30, 36) and is connected at its outer wall rotationally fixed to the loose wheel (40, 40\u2032) of the intermediate-gear gearset (17, 17\u2032) and has, on an inside wall, friction means (43) on the clutch input side, the armature (44) and friction means (45, 46) on the clutch output side are connected, in a rotationally fixed manner, on the output-side shaft (30, 36), and the friction means (43, 45, 46) is axially movable relative to one another so that depending on current flowing in the energizing magnet (47), by virtue of axial displacement of the armature (44) under action of a magnetic force, the friction means (43, 45, 46) actively contact with one another and torque transmission by the electromagnetic clutch (16, 16\u2032), in either a slipping mode or a friction-locked mode, is produced.
20. The multi-group transmission according to claim 14, wherein a splitter group (2) has two gear constants (ik1, ik2) and a further, electromagnetic clutch (5, 7) is associated respectively with each gear constant (ik1, ik2), by which the gear constants (ik1, ik2) are shifted under load.
21. The multi-group transmission according to claim 20, wherein the electromagnetic clutch (5) associated with a first gear constant (ik1), on a motor side, comprises an armature (51) arranged so as to be axially displaced on the driveshaft (6) and, surrounding the armature (51), a rotor (49) which is connected in a rotationally fixed manner to a loose wheel (11) of the first gear constant (ik1) and is arranged to rotate together with the wheel on the driveshaft (6), and an energizing magnet (54), while an electromagnetic clutch (7) associated with a second gear constant (ik2), on a transmission side, comprises an armature (58) arranged to be axially displaced on the driveshaft (6) and, surrounding the armature (58), a rotor (56) which is connected in rotationally fixed manner to a loose wheel (14) of the second gear constant (ik1) and is arranged to rotate together with the wheel on the driveshaft (6), and an energizing magnet (61), such that respective friction means (52, 53, 59, 60) arranged on the driveshaft (6) on the clutch input side, and respective friction means (50, 57) arranged on the rotors (49, 56) on the clutch output side are frictionally engagable, so that the loose wheels (11, 14) are selectively connectable in a rotationally fixed manner to the driveshaft (6).
22. The multi-group transmission according to claim 18, wherein the range group (4) is a change-under-load transmission.
23. The multi-group transmission according to claim 14, wherein at least one of the electromagnetic clutches (5, 7, 16, 16\u2032) comprises a ball ramp device (48, 55, 62).
24. A method for operating a multi-group transmission (1, 1\u2032) of a motor vehicle, with at least two transmission groups (2, 3) arranged in a drivetrain, in which traction force supporting means are activated during a gearshift operation, the method comprising the steps of either temporarily forming or maintaining an active connection between a driveshaft (6) and either a main transmission shaft (30) or a transmission output shaft (36) at least one electromagnetic clutch (5, 7, 16, 16\u2032) made as a change-under-load means.
25. The method according to claim 24, further comprising the step of:
engaging an intermediate-gear gearset (17,17\u2032) as an intermediate gear with an electronic clutch (16, 16\u2032), during a gearshift with a shift operation within a main group (3) made as a gear-change transmission, such that an active connection is made between the driveshaft (6) and either the main transmission shaft (30) or the transmission output shaft (36), bypassing a flow of force at least of the main group (3), so that the main group (3) is shiftable while not under load,
disengaging an engaged original gear,
synchronizing a speed of a drive motor connected to the driveshaft (6), with the electromagnetic clutch (16, 16\u2032) operating in slipping mode, to a connection speed of a target gear, and
engaging the target gear, when the connection speed is reached, and again disengaging the electromagnetic clutch (16, 16\u2032).
26. The method according to claim 24, further comprising the step of shifting during a gearshift involving a shift operation within a splitter group (2) made as a gear-change transmission by means of associated electromagnetic clutches (5, 7) between gear constants (ik1, ik2) of the splitter group (2), such that an active connection between either the driveshaft (6) and the main transmission shaft (30) or the transmission output shaft (36) is maintained.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method comprising:
receiving a first packet on a Peripheral Component Interconnect Express (PCIE) interconnect with a first device, wherein the first packet is to include a reference to an address and a plurality of prefetch parameters; and
prefetching an additional element in response to receiving the first packet based on the plurality of prefetch parameters.
2. The method of claim 1, wherein the first packet is a prefetch message, and wherein the prefetch message is also to include an access control hint, the access control hint to be selected from a group consisting of an evict hint, an intent to read only hint, intent to write only hint, intent to read and write hint, and DIO hint.
3. The method of claim 2, wherein the address is a starting address, and wherein the plurality of prefetch parameters are selected from a group consisting of a count, a length, a stride, and a direction.
4. The method of claim 1, further comprising: determining the additional element to be prefetched based on the starting address and the plurality of prefetch parameters.