Abstract: A method for controlling and regulating the input power distribution of prime movers in a power train (1) of a motor vehicle which has one internal combustion engine (2), at least one electric machine (6, 14), at least one clutch (4, 11), the same as one transmission (12), and in which there is at least one control and regulation unit which, on the basis of predetermined, measuring and calculated values, controls and regulates the input power distribution between the internal combustion engine (2) and at least one electric machine (6, 14) with regard to power dynamics of the vehicle, the same as its energy consumption, its emission and its driving comfort.

Abstract: 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.

Abstract: An automatic transmission for motor vehicles (1) comprising a drive shaft (2) that can be linked with an internal combustion engine and an output shaft (3) that can be linked with at least one motor vehicle axle. Furthermore, it suggests a manual shiftable transmission (4) that comprises a first and a second planetary gear set (5, 6), several shift elements (7, 8, 9, 10, 11, 19) as well as an electric engine (14), which is provided as a starter/generator and/or for the continuous adjustment of the shiftable transmission (4) and/or for the at least partially electric driving operation of a motor vehicle. Pursuant to the invention the electric engine (14) can be connected to a first and/or a second shaft of the first planetary gear set (5) by means of two additional shift elements (12, 13).

Abstract: 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.

Abstract: An automatic, shiftable vehicle transmission (1) with an input drive shaft (2), which can be connected to an internal combustion engine, and an output drive shaft (3) which is connectable to at least one vehicle axle, a mechanical shifting gear train (4) with a first and a second planetary gear set (5, 6), as well as a plurality of shifting elements (7, 8, 9, 10, 11, 12). The first planetary gear set (5) is a simple planetary gear set and the second planetary gear set (6) is a double, in particular, a Ravigneaux gear set (6). The second planetary gear set (6) is located after the first planetary gear set (5). A first shaft (14) is connectable via an additional shifting element (13) with a second shaft (16) of the first planetary gear set (5) and thereby, two further forward gear stages and an additional reverse gear stage can be realized.

Abstract: The control of a shifting component (1) of a stepped automatic transmission is designed with one frictionally engaged element (2) and one form-locking element (3). When this shifting component (1) is engaged, a transmitting capacity of the frictionally engaged element (2) is first adjusted and when a synchronous state of the form-locking element (3) exists, the form-locking element (3) is closed. When the form-locking element (3) is closed, a transmitting capacity of the frictionally engaged element (3) is reduced. In case of a demand for disengaging the shifting component (1) before opening under load, the form-locking element (3) and the transmitting capacity of the frictionally engaged element (2) is increased so that a power flow, which is conveyed via the closed form-locking element (3) of the shifting component (1), can be conveyed via the frictionally engaged element when the form-locking element (3) is open.

Abstract: An auxiliary-range transmission (1) for a motor vehicle is proposed which comprises at least one power-splitting stage (8) and at least one power-combining stage (6) and therebetween at least two drive trains (3, 9) disposed parallel to each other having each at least one shifting element (5, 10), there being situated in one of the drive trains (3) one continuously variable transmission (4) which can be implemented by a continuously variable adjustment of the ratio of the whole transmission (1) in a particular speed. A gear is changed here without interruption of tractive force and with a power reversal in the continuously variable transmission (4). During a range change a load transfer occurs on at least one shifting element (5, 10) of frictional type by an adjustment of ratio of the continuously variable transmission (4) simultaneous with the shifting of the shifting elements (5, 10).

Abstract: The automated multiple-gear transmission comprises an input shaft, a gearwheel assembly for engaging the gears via several output paths and an output shaft, and the gearwheel assembly comprises several intermediate spur gear stages and an auxiliary planetary assembly.

Abstract: A procedure for the control and regulation of a clutch of an automatic stepless transmission for a motor vehicle in which an electronic control device, via a first or second regulation circuit, determines the behavior of the clutch during three driving conditions and wherein a stepless gear ratio change is carried out from a first into a second gear ratio. In accord with the invention, for the control and the regulation of the clutch during the first driving condition, the first regulation circuit is employed, the size of the regulation thereof being equivalent to the actual value of the motor speed of rotation (n_MOT_IST). During the second driving condition, a second regulating circuit is employed, the size of the regulation thereof being equivalent to the actual value of a difference in speeds of rotation (dnK_IST) of the clutch and during the third driving condition, the clutch is subjected to a controlled pressure value dependent upon various value influences.

Abstract: 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.

Abstract: 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.

Abstract: A transmission is described, in particular an automatic transmission, which has several shift control elements (A, B, C, D, E) and several gearwheels (2, 3) which can be engaged via the shift control elements (A to E) to form a power flow, in which, to establish a transmission ratio in each case at least one of the shift control elements (A to E) is closed. The shift control elements (B, C, E), which are engaged during an up-shift, are formed as frictional shift control elements, and the shift control elements (A, D), which during up-shifts respectively only constitute a shift control element to be disengaged, are made as positive-locking gear elements.

Abstract: A transmission is described, in particular an automatic transmission for a vehicle, having at least one shift control element formed at least of a second shift control element half that can be brought into active frictional engagement with a first shift control element half. The shift control element halves can be connected to non-rotating and rotating transmission components, and a positive-locking coupling device is provided at least between the first shift control element half and the transmission components that can be connected thereto. The coupling device also comprises a synchromesh device. In addition, a method is described for controlling a transmission that has at least one shift control element and two shift control element halves which can be brought into active frictional engagement.

Abstract: A process for controlling and regulating a clutch in a stepped load switchable automatic transmission for a motor vehicle where an electronic control device determines the behavior of the clutch during three operating conditions by way of a first or a second control circuit, and that a shift from a first into a second gear ratio stage takes place. In accordance with the invention, the first control circuit is used for controlling and regulating the clutch during the first operating condition, whose controlled variable is equivalent to the actual value of the engine speed (n_MOT_IST). During the second driving condition, a second control circuit is used, whose controlled variable is equivalent to the actual value of a differential rotational speed (dnK_IST) of the clutch, and during the third operating condition, the clutch is impinged with a controlled pressure value dependent upon various influence magnitudes.

Abstract: A hybrid drive for a motor vehicle which possesses, in a gear train (1), a first electrical machine (4) located between an internal combustion motor (2) and a multi-gear vehicle transmission (3). The hybrid drive further possesses a second electrical machine (6) permanently connected with an input shaft (5) of the transmission. First and second clutches (7, 8), respectively, are placed between the first and second electrical machines (4, 6) and the internal combustion motor (2) and the first and second electrical machines (4, 6) can be respectively driven as either a motor or a generator.

Abstract: 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.

Abstract: A procedure for the control and regulation of a clutch in an automated stepped transmission for a motor vehicle, in which an electronic control device by means of a first or second regulation circuit determines the behavior of the clutch during three driving conditions and that a traction interrupted shifting from a first into a second gear ratio is carried out. In accord with the invention, for the control and the regulation of the clutch during the first driving condition the first regulation circuit is employed, the size of the regulation thereof being equivalent to the actual value of the motor speed of rotation (n_MOT_IST). During the second driving condition, a second regulating circuit is employed, the size of the regulation thereof being equivalent to the actual value of a difference in speeds of rotation (dnK_IST) of the clutch and during the third driving condition, the clutch is subjected to a controlled pressure value dependent upon various value influences.

Abstract: A method is proposed for controlling an automatic transmission driven by a prime mover in which a shift from a first transmission ratio to a second transmission ratio occurs in the form of a pull upshift or push downshift or a pull downshift or push upshift by a first clutch opening and a second clutch closing and an electronic transmission control device controls, via electromagnetic valves, the pressure curve of the first and of the second clutch during the shifting operation. The shifting operation is divided into various shifting phases, an engine intervention taking place in the load-transfer (LÜ) of the gradient-setting phase (GE), the sliding phase (GL), the gradient-reduction phase (GA) and the closing phase (S), an engine torque and/or a characteristic value that determines the engine torque being transferred from the transmission control device to an engine control device of the prime mover.

Abstract: The invention proposes n 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.

Abstract: The invention relates to a method and device for a coupling (2) in a motor vehicle transmission, the coupling being controlled and regulated during two operational states by way of a first regulating circuit (3). The regulated quantity corresponds to the actual value of a differential engine speed of the coupling (2). The first state corresponds to a starting action and the second state to operation with a variable transmission ratio.