摘要:
Described is a method for controlling and regulating a drive train of a vehicle comprising one drive unit, one transmission and one output unit. The transmission has controllable free-wheel device corresponding with toothed wheel pairs for disconnecting or connecting an old or a new gear and located on the input side one clutch. In the presence of a shifting signal for carrying out a higher traction shift, an input torque of the drive unit is quickly reduced so that a first vibration is induced in the drive unit. During a subsequent shifting, an operative connection is abruptly created between a free-wheel device and a toothed wheel pair corresponding therewith in a manner such that a second vibration counteracting the first vibration is produced in the drive train. With the engagement of the new gear the operative connection of the old gear is canceled as a result of a torque reversal from a pull torque to a push torque.
摘要:
An actuating apparatus (1) for an automated multiple-ratio transmission (2) of a motor vehicle, having a shifter drum (3), actuatable by an actuating drive (5), that comprises at least one guide (9, 10) in which at least one guide element (6, 7), joined to an actuating member of the multiple-ratio transmission (2), is guided; and having at least one further separate shifter drum (4). The shifter drums (3, 4) are kinematically coupled to one another.
摘要:
Disclosed is a method for controlling and regulating the drive train of a vehicle, comprising a drive unit, a transmission and an output unit. The transmission has controllable free-wheel units corresponding with pairs of toothed wheels for disengaging or engaging an old or a new gear and a clutch mounted on the output side. In the presence of a shift command for carrying out a higher traction shift, the transmission capacity of the clutch is adjusted in a manner such that a current drive torque of the drive unit applied to said clutch is transmitted to the output unit and the clutch exhibits at least an approximately slip-free state. When a higher traction shift exists, an operative connection is suddenly created between a controllable free-wheel unit and a corresponding pair of toothed wheels of the new gear, and the operative connection of the old gear is at least almost simultaneously canceled.
摘要:
A transmission shifting device (1) is described which has one shifting element (3) rotatably guided upon an axle (2) and provided with at least one grooved path (4). The grooved path (4) engages at least one shift fork (5) which upon rotation of the shifting element (3) can be moved accordingly axially by the shape of the grooved path (4). Rotation of the shifting element (3) is possible via an electromotor (8) in operative connection with the shifting element (3) and having one stator (9) and one rotor (10). According to the invention, the stator (9) and the rotor (10) are situated at least partly between the shifting element (3) and the component part (2) without a housing of their own.
摘要:
A gear selector device for a transmission of a motor vehicle in which at least one gear wheel 2, 3 and one sliding sleeve 4 are situated upon one transmission shaft 1. For axial displacement of the sliding sleeve 4 upon the transmission shaft 1, a pressure-medium actuatable shifting device 45 is used which is supplied with a control pressure medium through a hole 10 within the transmission shaft 1. When several such sliding sleeves 4, 20 are disposed upon such a transmission shaft 1, there results a higher total construction cost for the control pressure supply thereof. The object of the invention is a transmission shaft 1 having several sliding sleeves 4, 20 to reduce the total construction cost for the axial displacement of the sliding sleeves 4, 20. To the end, it is provided that the shifting devices 45, 46 of the sliding sleeves 4, 20 can be supplied independently of each other with a control pressure medium through one common pressure medium hole 6 in the transmission shaft 1.
摘要:
A transmission for distributing a drive torque between at least two drive output shafts with at least two planetary gearsets, each having at least three-shafts. In each case, a shaft of a planetary gearset is connected to a drive input shaft and a second respective shaft of a planetary gearsets is the drive output shafts. A respective third shaft of the planetary gearsets communicates with a brake such that a degree of distribution of the drive torque between the two output shafts varies as a function of the transfer capacities of the brakes. A transmission device controls and regulates a drive torque from a drive engine between the two output shafts of the transmission device. The transfer capacities of the two brakes are adjusted such that one brake is in a synchronous condition and the transfer capacity of the other brake is varied between a lower and an upper limiting value.
摘要:
A transmission device is proposed for distributing a drive torque to at least two output shafts (Ab1, Ab2), comprising a differential (2) that is permanently connected to the output shafts (Ab1, Ab2), wherein a double planetary gearset (4) is provided co-axially to the output (Ab2) between the differential cage (3) of the differential (2) and the output (Ab2) of one side, said planetary gearset comprising a first sun gear (5) and a second sun gear (6), a first planetary range (7), an intermediate planetary range (8), and an internal gear (9), herein the internal gear (9) is connected to the differential cage (3) and the planet carrier (10) of the planetary gearset (4) is connected to the output (Ab2), wherein the first sun gear (5) meshes with the first planetary range (7) and can be coupled to the housing (G) by means of a brake (11) in order to shift the torque in one direction, and wherein the second sun gear (6) meshes with the intermediate planetary range (8) and can be coupled to the housing (G) by means of an additional brake (19) in order to shift the torque in the opposite direction.
摘要:
A power train (1) of an all-wheel drive vehicle with at least two driven vehicle axles (4, 5), with a main transmission (3) placed between a main engine (2) and the vehicle axles (4, 5), capable of displaying different conversion ratios, which has three control and adjustment frictional clutches (k_VA, k_HA_L and k_HA_R). The first clutch (k_VA) is placed between the main transmission (3) and the first vehicle axle (4) and the second clutch (k_HA_L) and the third clutches (k_HA_R) are respectively located between an axle transmission (7) and two driven wheels (5A, 5B) of the second vehicle axle (5). The respective transfer capabilities of the clutches (k_VA, k_HA_L, k_HA_R) can be adjusted with an actuator (8), and the driving torque between the driven vehicle axles (4, 5) can be distributed depending on the adjusted transfer capabilities of the clutches (k_VA, k_HA_L, k_HA_R).
摘要:
A transmission for distributing a drive torque to two drive output shafts, with two planetary gearsets each having at least three shafts. A respective shaft of a planetary gearset is connected to a drive input shaft. Furthermore, one shaft of each planetary gearset constitutes one of the output shafts and in each case at least one further shaft of a planetary gearset is connected with a shaft of another planetary gearset. An operation-status-dependent torque of one shaft can be supported by the connection, depending on an operating status of the other shaft connected thereto, in such manner that when there is a rotation speed difference between the output shafts, a speed-difference-changing torque is applied to the planetary gearsets. Furthermore, a drive train is proposed, in which a drive torque from a drive-power-source is distributed variably in the longitudinal and transverse direction of the vehicle in an operation-status-dependent manner.
摘要:
A transmission for distributing a drive torque to two drive output shafts, with two planetary gearsets each having at least three shafts. A respective shaft of a planetary gearset is connected to a drive input shaft. Furthermore, one shaft of each planetary gearset constitutes one of the output shafts and in each case at least one further shaft of a planetary gearset is connected with a shaft of another planetary gearset. An operation-status-dependent torque of one shaft can be supported by the connection, depending on an operating status of the other shaft connected thereto, in such manner that when there is a rotation speed difference between the output shafts, a speed-difference-changing torque is applied to the planetary gearsets. Furthermore, a drive train is proposed, in which a drive torque from a drive-power-source is distributed variably in the longitudinal and transverse direction of the vehicle in an operation-status-dependent manner.