Hybrid drive having an automated conventional gearbox
AssigneeZF Friedrichshafen AG
InventorJohannes Kaltenbach
Life of this patent
Estimating the term…
Abstract
One general aspect of the present disclosure includes a hybrid drive for a motor vehicle. The hybrid drive may have a first transmission input shaft configured to connect to an internal combustion engine, a second transmission input shaft being coaxial to the first transmission input shaft and configured to connect to an electric motor, a first gear set plane, a second gear set plane, and a third gear set plane for a first forward gear, a second forward gear, and a third forward gear, respectively, a layshaft, a first gear shifting device connecting the first transmission input shaft and the second transmission input shaft in a first shifting setting and engaging a gear in a second shifting setting, and a transmission output shaft.
Claims20
A hybrid drive for a motor vehicle, comprising:
- a first transmission input shaft configured to connect to an internal combustion engine;
- a second transmission input shaft, the second transmission input shaft being coaxial to the first transmission input shaft, and the second transmission input shaft configured to connect to an electric motor;
- a first gear set plane, a second gear set plane, and a third gear set plane for a first forward gear, a second forward gear, and a third forward gear, respectively;
- a layshaft that includes or is fixed to a transmission output shaft;
- and
- a first gear shifting device directly connecting the first transmission input shaft and the second transmission input shaft in a first shifting setting such that the first transmission input shaft and the second transmission input shaft are fixed, and the first gear shifting device directly selecting a single gear setting of the motor vehicle in a second shifting setting, the second shifting setting consisting of a single output gear such that the single gear setting is always selected when the first gear shifting device is in the second shifting setting,
- wherein each of the first gear set plane, second gear set plane, and third gear set plane is dedicated to at least one of the first transmission input shaft and the second transmission input shaft;
- and
- an output gearwheel disposed on the transmission output shaft in a non-rotational manner with respect to the transmission output shaft and between the second gear set plane and the third gear set plane, wherein the output gearwheel is configured to engage with a second output gearwheel of a differential transmission.
A hybrid drive for a motor vehicle, comprising:
- a first transmission input shaft configured to connect to an internal combustion engine;
- a second transmission input shaft, the second transmission input shaft being coaxial to the first transmission input shaft, and the second transmission input shaft configured to connect to an electric motor;
- a first gear set plane, a second gear set plane, and a third gear set plane for a first forward gear, a second forward gear, and a third forward gear, respectively;
- a layshaft that includes or is fixed to a transmission output shaft;
- and
- a first gear shifting device directly connecting the first transmission input shaft and the second transmission input shaft in a first shifting setting such that the first transmission input shaft and the second transmission input shaft are fixed, and the first gear shifting device directly selecting a single gear setting of the motor vehicle in a second shifting setting, the second shifting setting consisting of a single output gear such that the single gear setting is always selected when the first gear shifting device is in the second shifting setting,
- wherein each of the first gear set plane, second gear set plane, and third gear set plane is dedicated to at least one of the first transmission input shaft and the second transmission input shaft, and
- wherein a fixed gear or an idler gear of the first gear set plane, and a fixed gear or an idler gear of the second gear set plane, are disposed on the second transmission input shaft.
Dependencies are inferred from the claim text.