Abstract: A hybrid drive of a motor vehicle has an internal combustion engine, an electric machine, and a transmission. The transmission is a multi-stage shifting transmission including two subtransmissions, each of which has a separate input shaft and a common output shaft. The first input shaft of a first subtransmission can be coupled to the internal combustion engine via a friction-locking clutch in such a way that when the clutch is engaged the internal combustion engine is coupled to the first input shaft and thus to the first subtransmission, and when the clutch is disengaged the internal combustion engine is decoupled from the first input shaft and thus decoupled from the first subtransmission. A second input shaft of a second subtransmission is rigidly coupled to the electric machine, and both input shafts can be coupled selectively to the common output shaft via form-locking shift elements of the subtransmissions.

Abstract: A hybrid drive of a motor vehicle having an automated manual transmission with two input shafts and a common output shaft. The first input shaft can be connected to the drive shaft of an internal combustion engine by a clutch and can be brought into a drive connection to the output shaft by a first group of shiftable gearwheel sets. The second input shaft has a drive connection to the rotor of an electric machine, which can operate as a motor and a generator, and can be brought into a drive connection with the output shaft by a second group of selectively shiftable gearwheel sets. The input shafts can be coupled by coupling-shift element. The hybrid drive is provided with a second electric machine, which can operate as a motor and a generator and has a rotor that can be connected to the first input shaft.

Abstract: A hybrid drive of a motor vehicle comprising a combustion engine having a drive shaft, at least one electric machine, a manual transmission having input shafts (GE1, GE2) and an output shaft. Shaft (GE1) couples the combustion engine drive shaft and the electric machine can drive shaft (GE2). For efficient driving with the combustion engine and/or electric machine optionally decoupled or coupled, and for a reduction of size, shafts (GE1, GE2) are coaxially located one after the other, the output shaft coaxially surrounds one of the shafts (GE1, GE2) and planetary gearsets are disposed coaxially behind one another, each having an input and output element. The combustion engine can be coupled alternately to shaft (GE2), via a first shift element or to the input element of the first planetary gearset, via a second shift element. The output elements of the planetary gearsets are connected to the output shaft.

Abstract: A transmission for a motor vehicle, having a transmission input shaft, to which a drive assembly can be coupled, having a transmission output shaft, to which an axle drive can be coupled, having numerous planetary gear sets disposed coaxially behind one another, and having numerous form-locking shift elements, wherein a first element of a first planetary gear set is permanently coupled to a first element of a second planetary gear set via a shiftable intermediate shaft between the transmission input shaft and the transmission output shaft, wherein an electric machine is permanently coupled to this intermediate shaft, wherein a second element of the second planetary gear set is permanently coupled to the transmission output shaft, wherein, in a first shifting setting of a first form-locking shift element, the transmission input shaft is coupled directly to the transmission output shaft, while in a second shifting setting of the first form-locking shift element, the transmission input shaft is coupled to a seco

Abstract: A hybrid drive of a motor vehicle has an internal combustion engine, an electric machine, and a transmission. The transmission is a multi-stage shifting transmission including two subtransmissions, each of which has a separate input shaft and a common output shaft. The first input shaft of a first subtransmission can be coupled and decoupled to the internal combustion engine. The second input shaft of a second subtransmission is rigidly coupled to the electric machine. Both input shafts can be coupled selectively to the common output shaft via form-locking shift elements. The first input shaft can be attached to multiple clutches in such a way that when a first friction-locking or form-locking clutch and a second friction-locking clutch connected in series are both engaged, the internal combustion engine is coupled to the first input shaft and to the first subtransmission.

Abstract: A device includes a transmission and an electric machine for a hybrid drive of a motor vehicle, and the transmission includes first and second subtransmissions. The substransmissions each have an input shaft and they share an output shaft. The input shafts of the subtransmissions can be selectively coupled to the output shaft via form locking clutches of the subtransmissions. In particular, a first input shaft of the first subtransmission is allocated to a first friction locking clutch while a second input shaft of a second subtransmission is allocated to a second friction locking clutch. Furthermore, a third clutch is incorporated between an input drive side clutch half of the first friction locking clutch and an input drive side clutch half of the second friction locking clutch.

Abstract: The invention relates to a planetary transmission for a hybrid drive of a motor vehicle, having three coupled planetary gear sets, having numerous shift elements, and having at least one electric machine, to which a shaft inside the transmission is allocated, wherein, with a first planetary gear set, the ring gear can be connected to a component permanently attached to the housing, and the planet carrier is connected in a driving manner to the ring gear of a second planetary gear set, wherein, with the second planetary gear set, the planet carrier is connected to the ring gear of a third planetary gear set, and the sun gear can be powered by a transmission input shaft, and wherein, with the third planetary gear set, the planet carrier is connected to a transmission output shaft.

Abstract: A drive engages a shaft (4) and, via at least one shaft (5, 6) of a transmission, an electric machine. An output can be connected to another shaft (9). During gear shifts, the shafts (4, 5, 6, 9) are couple such that the rotational speed of the shaft (5, 6), which can couple the electric machine when torque at the shaft (9) is equivalent to the torque of the electric machine, and is a product of the gear ratio between the shaft (5, 6) and the shaft (9) and the rotational speed of the shaft (9) or, when torque present at the shaft (9), is equal to the torque of the drive engine or electric machine, and is a sum of the product of the rotational speed of the shaft (4) and a first variable, and the product of the rotational speed of the shaft (9) and a second variable.

Abstract: A hybrid drive of a motor vehicle having an automated manual transmission with two input shafts and a common output shaft. The first input shaft can be connected to the drive shaft of an internal combustion engine by a clutch and can be brought into a drive connection to the output shaft by a first group of shiftable gearwheel sets. The second input shaft has a drive connection to the rotor of an electric machine, which can operate as a motor and a generator, and can be brought into a drive connection with the output shaft by a second group of selectively shiftable gearwheel sets. The input shafts can be coupled by coupling-shift element. The hybrid drive is provided with a second electric machine, which can operate as a motor and a generator and has a rotor that can be connected to the first input shaft.

Abstract: A hybrid drive of a motor vehicle comprising a combustion engine having a drive shaft, at least one electric machine, a manual transmission having input shafts (GE1, GE2) and an output shaft. Shaft (GE1) couples the combustion engine drive shaft and the electric machine can drive shaft (GE2). For efficient driving with the combustion engine and/or electric machine optionally decoupled or coupled, and for a reduction of size, shafts (GE1, GE2) are coaxially located one after the other, the output shaft coaxially surrounds one of the shafts (GE1, GE2) and planetary gearsets are disposed coaxially behind one another, each having an input and output element. The combustion engine can be coupled alternately to shaft (GE2), via a first shift element or to the input element of the first planetary gearset, via a second shift element. The output elements of the planetary gearsets are connected to the output shaft.

Abstract: A drive train with a combustion engine, electric machine, and a transmission with first and second partial transmissions. The electric machine is coupled via a planetary transmission to input shafts of the first and second partial transmissions. The combustion engine can be coupled, via a separation clutch, to the input shaft of the second partial transmission and, when the separation clutch is engaged, the engine is also connected, via the planetary transmission, to the input shaft of the first partial transmission. A bridging shift element interacts with the planetary transmission such that, when the bridging shift element is engaged, the electric machine and the input shafts of the first and second partial transmissions are torsionally fixed so that they all rotate together. When the bridging shift element is disengaged, there is no torsionally fixed connection and those component rotate at different rotational speeds.

Abstract: A drive-train of a vehicle having an internal combustion engine and a continuously variable transmission for driving under internal combustion engine power and having at least one electric machine for driving under electric power. The electric machine can be coupled, on the drive output side, in such manner that electric driving can take place decoupled from the continuously variable transmission.

Abstract: A drive train with a combustion engine, electric machine, and a transmission with first and second partial transmissions. The electric machine is coupled via a planetary transmission to input shafts of the first and second partial transmissions. The combustion engine can be coupled, via a separation clutch, to the input shaft of the second partial transmission and, when the separation clutch is engaged, the engine is also connected, via the planetary transmission, to the input shaft of the first partial transmission. A bridging shift element interacts with the planetary transmission such that, when the bridging shift element is engaged, the electric machine and the input shafts of the first and second partial transmissions are torsionally fixed so that they all rotate together. When the bridging shift element is disengaged, there is no torsionally fixed connection and those component rotate at different rotational speeds.

Abstract: A drive train of a motor vehicle, with a drive engine, a torque converter, an additional brake, a retarder, a manual actuator device for a power control element, a manually operated preselector element for an operating range of the torque converter, a manually operated preselector element for selecting braking resistance of the additional brake, a manual control element for actuating a brake that decelerates the motor vehicle and an electronic control unit for exchanging and processing signals and data of the drive train and/or of the motor vehicle. The preselector element for the additional brake is connected to the electronic control unit such that starting from a zero position “0”, it can be actuated in a direction “I” for signaling the selection of a braking resistance of the additional brake, and also in another direction “II” for signaling the activation of a drive-power-off rolling or coasting operation mode.

Abstract: A drive train of a motor vehicle, with a drive engine, a torque converter, an additional brake, a retarder, a manual actuator device for a power control element, a manually operated preselector element for an operating range of the torque converter, a manually operated preselector element for selecting braking resistance of the additional brake, a manual control element for actuating a brake that decelerates the motor vehicle and an electronic control unit for exchanging and processing signals and data of the drive train and/or of the motor vehicle. The preselector element for the additional brake is connected to the electronic control unit such that starting from a zero position “0”, it can be actuated in a direction “I” for signaling the selection of a braking resistance of the additional brake, and also in another direction “II” for signaling the activation of a drive-power-off rolling or coasting operation mode.

Abstract: A device for a motor vehicle having an internal combustion engine which drives a transmission, via an automated clutch. The transmission has one or more continuous or stepped variable ratios and the vehicle has a coasting cutoff signal. While coasting, the coasting cutoff signal can interrupt the supply of fuel to the internal combustion engine and, upon reaching or falling below a previously defined rotational speed, causes the supply of fuel to the internal combustion engine is resumed. The transmission has, In addition to the gear ratios needed for driving, coasting ratios for operating the transmission with a coasting cutoff signal, which enables lower reduction ratios than the ratios for the driving operation in order to reduce the drag torque of the internal combustion engine that acts on the output. The additional ratios are either stepped or continuously variable.

Abstract: A fuel cell system includes a fuel cell unit and a gas-generating system containing at least one reforming unit for obtaining a hydrogen-rich reformate from a fuel. It is possible to supply the reformate at least partly to the anode side of the fuel cell unit. The system may include a first reforming reactor for producing a first reformate with a high outlet temperature; a second reforming reactor for producing a second reformate with a second outlet temperature which is below the first outlet temperature; a mixing element for mixing the first reformate with at least one fuel and located between an outlet of the first reforming reactor and an inlet of the second reforming reactor. The second reformate may be supplied to a gas-purification system and the purified reformate supplied to the fuel cell unit.

Abstract: The objective of providing a circuit arrangement for the control of at least one electric machine (1), which is suitable for also enabling operating conditions of the electric machine (1) that demand high power-peaks of short duration, is essentially achieved in that the electric machine (1) can be connected via a DC/AC converter (2) and at least one switching device (3) to at least two different electrical energy storage devices (I, II), one storage device (I) being designed as a storage device for comparatively long-lasting power demands and the other storage device (II) as a storage device for short and high power-peaks.

Abstract: A transmission for a vehicle equipped with an electrodynamic starting element or an electrodynamic power plant (1) and an electrodynamic starting element or an electrodynamic power plant (1) having an electric motor (2) and a planetary transmission (5) located between the internal combustion engine (4) and the transmission (3) in which the reverse gear is implemented by adequate adjustment of the electric motor (2) of the electrodynamic starting element or of the electrodynamic power plant (1) so that the vehicle is driven in reverse gear by the electric motor (2), the mechanical parts required for the reverse gear with the internal combustion engine (4) being eliminated.

Abstract: The objective of providing a circuit arrangement for the control of at least one electric machine (1), which is suitable for also enabling operating conditions of the electric machine (1) that demand high power-peaks of short duration, is essentially achieved in that the electric machine (1) can be connected via a DC/AC converter (2) and at least one switching device (3) to at least two different electrical energy storage devices (I, II), one storage device (I) being designed as a storage device for comparatively long-lasting power demands and the other storage device (II) as a storage device for short and high power-peaks.