Abstract:
A method for controlling a gearbox (2) that includes a main gearbox (6) provided with a splitter shaft (16) and a main shaft (14), connectable to a power source (4). The splitter shaft (16) is connected to a lay shaft (22) by at least a first and a second splitter gear pair (42, 45). The main shaft (14) is connected to a lay shaft (22) by at least a first gear pair (60). The method includes a) preparing a shifting of gear in the gearbox (2) by transferring essentially the same speed and torque between the splitter and the main shafts (16, 14), and b) shifting gear in the gearbox (2).
Abstract:
A drive system is provided for an engine arrangement, which includes a gear reduction mechanism such as an epicyclic gearing including first junction element connected to an engine crankshaft, second junction element connected to an accessory pulley which is drivingly connected to an electric machine and at least one accessory, and third junction element. A free wheel is connected to a non-rotating part of the engine arrangement. In a first operating phase of the drive system, the free wheel is coupled to the third junction element and is configured such that when the third junction element exerts torque on the free wheel in one direction, the free wheel is in an engaged state and stops the rotation of the third junction element, and, when the third junction element exerts torque on the free wheel in the opposite direction, the free wheel is in a free state and allows rotation of the third junction element.
Abstract:
A propulsion device (2) for a vehicle including an output shaft (14) of a combustion engine (4), an input shaft (27) of a gearbox (8), an electrical machine (6) having a stator (24) and a rotor (26), and a planetary gear (10) including movable components (18, 20, 22). A locking sleeve (38) is movable between first and second positions. In the first position, the engine output shaft (14) and the gearbox input shaft (27) are allowed to rotate at different speeds via the planetary gear (10). In the second position, the locking sleeve (38) firmly connects the engine output shaft (14) to the gearbox input shaft (27) via the planetary gear (10). Also a method for controlling such a propulsion device (2) is disclosed.
Abstract:
Getriebe (1) für ein Kraftfahrzeug, wobei das Getriebe (1) eine Antriebswelle (3), eine Abtriebswelle (4), eine elektrische Maschine (2) mit einem drehfesten Stator (9) und einem drehbaren Rotor (11), einen Hauptradsatz (HRS) mit drei Planetenradsätzen (P1, P2, P3), einen Vorschaltradsatz (VRS), sowie fünf Schaltelemente (A, B, C, D, E) aufweist, wobei die drei Planetenradsätze (P1, P2, P3) des Hauptradsatzes (HRS) zusammen fünf in der Reihenfolge ihrer Drehzahlordnung als erste, zweite, dritte, vierte und fünfte Welle bezeichnete Wellen (W1, W2, W3, W4, W5) aufweisen, wobei die Antriebswelle (3) über das erste Schaltelement (A) mit fünften Welle (W5), über das fünfte Schaltelement (E) mit der dritten Welle (W3) und über das zweite Schaltelement (B) mit dem Rotor (11) verbindbar ist, wobei die Abtriebswelle (4) mit der vierten Welle (W4) ständig verbunden ist, wobei durch Schließen des dritten Schaltelements (C) die zweite Welle (W2) drehfest festsetzbar ist, wobei durch Schließen des vierten Schaltelements (D) die dritte Welle (W3) drehfest festsetzbar ist, wobei der Rotor (11) mit einem ersten Element (E14) des Vorschaltradsatzes (VRS) verbunden ist und die erste Welle (W1) mit einem zweiten Element (E24) des Vorschaltradsatzes (VRS) verbunden ist, wobei der Vorschaltradsatz (VRS) dazu eingerichtet ist eine feste Übersetzung zwischen seinem ersten Element (E14) und seinem zweiten Element (E24) bereitzustellen.
Abstract:
[Summary] An input shaft (1) connectable to an engine (5), an output gear (2), a transmission case (3) and a Ravigneaux planetary gear unit (4) are provided. Four rotational elements of the Ravigneaux planetary gear unit (4) are a single pinion side sun gear (Ss), a carrier (C), a ring gear (R) and a double pinion side sun gear (Sd) which are arranged orderly on a common speed diagram. The single pinion side sun gear (Ss) is constantly connected to a motor/generator (6), and the ring gear (R) is constantly connected to the output gear (2). And, with usage of a low & reverse clutch (L&R/C), a high clutch (H/C) and a low brake (L/B), a first speed (1st), a second speed (2nd), a third speed (3rd) and a stepless change speed (eCVT) are established.
Abstract:
An apparatus (3) with the multi-stage power shifting means applied to a machine tool includes a housing body (31), a first transmission device (33) and a second transmission device (34) disposed in the housing body (31), a coupling device (32) connected to the transmission devices (33, 34) and a controller (35) controlling the gear shifting motion of the transmission devices (33, 34). The controller (35) includes two control units (351, 352) pivotally connected to respective engaging parts (334, 344) of the transmission devices (33, 34) and a driving system (353) capable of moving the control units (351, 352). When a power is sequentially transmitted from an external power source (4) to the first transmission device (33), the coupling device (32), the second transmission device (34) and thence to a power transmission mechanism (5), the controller (35) adjusts the mode of meshing the engaging parts (334, 344) with other correlated elements in the transmission devices (33, 34) to attain different output torque and speed values, the multi-stage shifting effect and the torque multiplying effect without increasing the bulk.
Abstract:
The invention relates to a multispeed gearbox having at least four planetary gear steps (P1, P2, P3, P4) arranged one behind the other along a main axis of rotation (10) , said planetary gear steps each comprising one sun gear (P11, P21, P31, P41), one planet carrier (P12, P22, P32, P42) and one ring gear (P13, P23, P33, P43), wherein the multispeed gearbox comprises a bearing (L1) which axially supports the sun gear (P21) of the second planeary gear step (P2) and the ring gear (P33) of the third planetary gear step (P3) relative to each other.
Abstract:
The invention relates to a coupling device for a motor vehicle, comprising a friction-fit unit (10a) and a form-fit unit (11a; 11b; 11c) that is connected parallel to the friction-fit unit (10a) and has at least two form-fit elements (12a, 13a; 12b, 13b; 12c, 13c) which can be connected to each other in a formfitting manner, which are arranged in a movable manner relative to each other along an actuation direction (14a; 14b, 14c), and each of which has at least one jaw (15a, 16a; 15b, 16b; 15c, 16c). Each of the jaws (15a, 16a; 15b, 16b; 15c, 16c) has at least partly a head surface (17a, 18a; 17b, 18b; 17c, 18c) which is oriented diagonally to the actuation direction (14a; 14b, 14c).