Hybrid drive of a motor vehicle and method for controlling same
AssigneeZF Friedrichshafen AG
InventorJohannes Kaltenbach
Life of this patent
Estimating the term…
Abstract
A hybrid drive of a motor vehicle comprises an internal combustion engine with a drive shaft, an electric machine having a rotor and being operable as a motor and as a generator, and a multistage conventional gearbox with two coaxially arranged input shafts and a common output shaft. The first input shaft is arranged centrally within the second input shaft which is embodied as a hollow shaft. The first input shaft can be connected to the drive shaft of the internal combustion engine via an assigned clutch; the second input shaft has a drive connection to the rotor of the electric machine; and the two input shafts can be selectively placed in a drive connection with the output shaft via a plurality of gearwheel sets with a different transmission ratio and a shiftable speed clutch.
Claims11
A hybrid drive of a motor vehicle, comprising a multistage manual transmission, the multistage manual transmission comprising:
- a second input shaft, being a hollow shaft, connected to a rotor of an electric machine;
- a first input shaft, being centrally within the second input shaft;
- an output shaft selectively connectable to the first input shaft and the second input shaft via a plurality of gearwheel sets and a shiftable speed clutch;
- an engageable and disengageable positive shifting clutch configured to couple to the first input shaft and the second input shaft;
- a separating clutch connected to the first shaft at a first side of the separating clutch and configured to connect to a drive shaft of a power engine at a second side of the separating clutch;
- a first countershaft configured to maintain a drive connection with the first input shaft via fixed gears;
- a second countershaft configured to maintain a drive connection with the second input shaft via fixed gears;
- and
- a transmission housing, wherein the plurality of gearwheel sets, the shiftable speed clutch, and the first and second countershafts are contained within the transmission housing, wherein the electric machine and the engageable and disengageable positive shifting clutch are located outside the transmission housing.
Dependencies are inferred from the claim text.