摘要:
The invention relates to an adjusting unit (16) for a continuously variable hydrostatically branched transmission, said transmission comprising two hydrostats (H1, H2), which are disposed next to each other at a distance from each other and each are supported pivotally about a pivot axis (27 or 28). In particular a compact design is achieved in that the adjusting unit (16) comprises hydraulically actuatable adjusting means (VZ1, VZ1’; VZ2) for pivoting the hydrostats (H1, H2) about the pivot axes thereof, that control valves (SV1, SV2) for controlling the hydraulically actuatable adjusting means (VZ1, VZ1’; VZ2) and actuating means (30; 42,...,46) for actuating the control valve (SV1, SV2) are provided, and that the control valves (SV1, SV2) and the actuating means (30; 42,..., 46) are disposed between the two hydrostats (H1, H2).
摘要:
Two identical differential mechanisms 13, 113 are mounted in parallel between the input shaft 11 connected to the rotor 1 of the wind generator by a speed step‑up device 4, and the output shaft 12 connected to a synchronous generator 3. The two planet gears 14, 114 are secured to the output shaft 12. The two planet carriers 17, 117 are secured to the input shaft 11. The two annulus gears 16, 116 therefore rotate at the same speed. They are connected by slightly differing transmission ratios 66, 166, of which one is also reversing with respect to the other, to the two input elements 22, 23 of a comparator differential 141. The cage 146 of this differential rotates at a speed equal to half the difference between the absolute values of the rotational speeds of the elements 22 and 23. After multiplication by gearing 147, 148, this low speed is applied to the rotor 133 of a regulating apparatus 32 such as an electric generator. The transmission ratio is adjusted or regulated by altering the torque applied by the regulating generator 32. Use for perfectly stabilizing the rotational speed of the synchronous generator 3 and allowing it to be constantly connected to the network with the regulating apparatus 32 consuming only a small amount of energy.
摘要:
A hydrostatically power-splitting transmission (10), particularly for agricultural and construction equipment, comprises at least two hydrostats (H2), which are hydraulically connected to each other and operate as pumps or as motors, wherein at least one of the hydrostats (H2) can be adjusted or pivoted by means of a controller (16, 20, 21; SK1,...SK4), mechanical coupling means (K1, K2; Z1,...,Z12), which couple the hydrostats (H1, H2) to an inner drive shaft (W1) and an inner driven shaft (W7), a housing (14, 31) comprising a cover (14) and a housing bottom part (31), wherein the hydrostats (H1, H2), the inner drive and driven shafts (W1, W7), and the mechanical coupling means (Z7, Z9) are disposed and attached on the bottom of the cover (14), and in the lower housing part an outer drive shaft accessible from the outside and a driven shaft are supported, which are operatively connected to the inner drive shaft or driven shaft when the housing is assembled. In such a transmission, a compact design, while simultaneously providing easy accessibility and high flexibility in the adaptation to different vehicles, is achieved in that the controller (16, 20, 21; SK1,...SK4) for adjustment or pivoting of the at least one hydrostat (H2) is disposed on the top of the cover (14) and acts upon the at least one hydrostat (H2) through the cover (14).
摘要:
A powertrain system includes an engine (14) coupled to an input member (12) of a transmission device (10) operative to transmit torque between the input member (12) and a torque machine (56,72) and an output member (64). The torque machine (56,72) is connected to an energy storage device (74). A method for controlling the powertrain system include monitoring a temperature of the torque machine (56,72), selecting a candidate powertrain system operating point, determining an electrical power input and a motor power output of the torque machine (56,72) for the candidate powertrain system operating point, determining a power loss for the torque machine (56,72) associated with the motor power output of the torque machine (56,72) and the electrical power input, and determining operating costs for operating the powertrain system at the candidate powertrain system operating point associated with the power loss from the torque machine (56,72) and based upon the temperature of the torque machine (56,72).
摘要:
A hydro-mechanical transmission system or electro-mechanical transmission system is described which uses pumps/motors or generators/motors having smaller capacity than those employed in the conventional techniques, irrespective of setting of a mode switching point that is a basis for shifting between an input split mode and a compound split mode. A sun gear 7 of a first planetary gear train 5 is connected to an input shaft 4; a carrier 9 of the first planetary gear train 5 is connected to a sun gear 11 of a second planetary gear train 6 and to a first pump/motor 16; a ring gear 10 of the first planetary gear train 5 is connected to a second pump/motor 20; and a ring gear 14 of the second planetary gear train 6 is connected to an output shaft 25. A first clutch 27 is provided for engaging and disengaging a carrier 13 of the second planetary gear train 6 and the ring gear 10 of the first planetary gear train 5 with and from each other, and a second clutch is provided for engaging and disengaging the carrier 13 of the second planetary gear train 6 and a fixed end 28 with and from each other.
摘要:
The invention concerns a power transmission method using a transmission device receiving mechanical power from several sources, comprising at least first and second electrical machines, and delivering the power to an output shaft. The method consists in decoupling the first electrical machine from a first input point of the device, then in coupling the first electrical machine to a second input point of the device. The method is characterized in that it consists in, when the first electrical machine is being decoupled, compensating the power (P7) transmitted by the first electrical machine prior to its being decoupled by modifying the power (P6) transmitted by the second electrical machine (6) of the sources such that the power (P4) delivered by the device remains linear.
摘要:
The invention relates to a power transmission device (1.1) that comprises an input shaft (2) to be connected to a thermal engine (3) and an output shaft (4) to be connected to a wheel shaft (5). The device (1.1) includes first and second electric machines (6, 7) and a mechanical assembly (12) ensuring the mechanical link between the input shaft, the output shaft and the shafts (8, 9) of the machines (6, 7). According to the invention, in order to limit the use of the epicyclic gear trains, at least one of the electric machines (8, 9) comprises a rotor (6.1) and a stator (6.2) connected to the mechanical assembly (12).