Abstract:
A drive system includes a first planetary device (110) at least selectively coupled to a first electromagnetic device (40), a second planetary device (120) coupled to a second electromagnetic device (50) and directly coupled to the first planetary device (110), an engine (20) directly coupled to the first planetary device (110) with a connecting shaft (36), and an output shaft (32) coupled to the first planetary device (110). The first and second electromagnetic devices (40, 50) include a first shaft and a second shaft, respectively. The connecting shaft (36) extends through the second electromagnetic device (50) and through the second planetary device (120) to the first planetary device (110). The first shaft, the second shaft, the first planetary device, the second planetary device, the connecting shaft, and the output shaft are radially aligned, forming a straight- thru transmission arrangement.
Abstract:
The present invention provides stepless transmissions comprising a cam, one ore more gears, and one or more planetary gear systems responsible for power input and output, which enables stepless speed change under load and/or while stopping. The disclosure also encompasses vehicles, including but not limited to automobiles, aircrafts, helicopters, tanks, warships, submarines, tractors, and mine and construction vehicles, etc., that contain any of the stepless transmissions described herein.
Abstract:
The invention relates to a rotational speed converter, by means of which a constant rotational speed or a continuously rising or continuously falling rotational speed change can be realized. The input rotational speed is converted by using at least three differential gearings (2, 3, 4) arranged in series, of which the two outer differential gearings (2, 3) are the same. The differential gearings (2, 3, 4) are brought into a power equilibrium in order to generate a constant output rotational speed. The power equilibrium can be disturbed by means of a speed-changing control gearing (12) that can be coupled into the power flow, in that the control gearing (12) transmits at a ratio unequal to 1:1, a continuous rotational speed increase or rotational speed decrease of the output rotational speed thus being generated.
Abstract:
Die Erfindung betrifft ein Getriebe für einen Hybridantrieb. Bei bekannten herkömmlichen Getrieben für Hybridantriebe mit einer so genannten "doppelten Leistungsverzweigung" kommt, es zu hohen Drehzahlen der Planeten. Erfindungsgemäß findet bei einer ersten Leistungsverzweigung auf einen ersten Leistungszweig (12) und einen zweiten Leistungszweig (13) sowie einer weiteren Verzweigung auf Leistungszweige (17, 18) in einem Planetensatz (19), in welchem eine Zusammenführung von zwei Leistungszweigen (15, 18) erfolgt, ein Doppelplanet Einsatz. Hierdurch kann die Drehzahl der Planeten reduziert. werden, ohne dass sich die grundlegende Auslegung des Getriebes (10) ändert. Getriebe für einen Hybridantrieb, insbesondere eines Kraftfahrzeugs.
Abstract:
The invention relates to a method for reducing a range selection jerk of a CVT gearbox with power branching. According to said method, an initiation jerk caused by a temporary variator adjustment weakens the jerk caused by the range selection. The invention also relates to a method whereby the actuation of the change-over clutches causing the range selection is modified according to rotary mass accelerations produced during the range selection.
Abstract:
A continuously variable transmission (I, II) has two planetary units (U1, U2) organized about a common axis, with each unit including a sun member (S), a ring member, (R) planet elements located between the sun and ring members, and a carrier member C providing axes about which the planet elements rotate. The two units are connected mechanically and through two variators, (V1, V2) each of which preferably takes the form of a motor-generator. The arrangement creates two paths for transferring power from an input shaft to an output shaft - one path being a planetary path and the other a variator path. When power transfers through the variator path, one variator functions as a generator and the other as a motor. Between the two variators is a control unit (J) which controls the amount of power transferred through the variator path.
Abstract:
The invention relates to a continuously variable mechanical or hydrostatic transmission with power branching, wherein the input power is divided up into one continuously variable power branch (4C') and one non-continuously variable power branch which are added together in a compound transmission (PS'). The continuously variable transmission (4C') and the compound transmission (PS') are coaxially arranged in relation to each other or form a power branching transmission as a common construction unit. Said transmission can be installed and dismantled in a main casing or combined with other upstream or downstream transmissions.
Abstract:
A continuously variable transmission having a pair of plate-like omega members (52, 54) rotatable about and spaced on a primary transmission axis (30) to be positioned on opposite sides of a biconical beta body (40, 42), the axis (28) of which is inclined at a large acute angle with respect to the primary transmission axis (28) so that the beta body (40, 42) and omega members (52, 54) engage in rolling friction contact at two points of contact on opposite sides of the primary transmission axis (28). The omega body members (52, 54) are connected by an external torque cage (62) and driven by a tubular shaft (66). The beta body (40, 42) is linked by gearing (70, 72) to a theta shaft (68) rotatably supported within the omega shaft (66). The omega shaft (66) carries at least one planetary gear set (16) in which the planet gears (78, 80, 89) are rotatably supported in the omega shaft (66) and wherein the sun gear (84, 86) is carried by the theta shaft (68). By appropriate selection of the gearing (70, 72) linking the beta body (40, 42 to the theta shaft (68) and of the ratio in the planetary set (16), the transmission is capable of providing a two range output with synchronous shifting between ranges.