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AssigneeZF Friedrichshafen AG
InventorsJohannes Kaltenbach, Johannes Glückler, Stefan Renner, Rayk Gersten
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A method for tractive force interruption-free shifting of a hybrid drive comprising combustion engine (21), electric engine (2), main gear (HG) comprising two parallel connected partial gears, output shaft (3), and first and second planetary gears (PG1, PG2). Each partial gear having either first hollow gear input shaft (4) or second solid gear input shaft (5). The first planetary gear (PG1) is connected to the main gear (HG) as the range group, with main gear (HG) comprising at least five gear planes (R1-R5) and at least four shifting elements (S1-S4). The electric engine (2) is connected to carrier (ST1) of the range group (PG1) and the output shaft (3) so that the electric engine (2) supports tractive force while the range group (PG1) is shifted, and the fifth gear plane (R5) is connected to carrier (ST1) of range group (PG1) and thus can be shifted under load.
A method for tractive force interruption-free shifting of a range group of a gear unit, which is driven by a hybrid drive comprising a combustion engine and an electric engine, where the gear unit comprises a main gear having two parallel connected partial gears and at least one countershaft (VW), as well as an output shaft, and first and second planetary gears each having an elements carrier, a sun gear and a ring gear, each partial gear having a gear input shaft, with a first gear input shaft being designed as a hollow shaft and a second gear input shaft being designed as a solid shaft, the first planetary gear being connected, as the range group, to the main gear, the main gear comprising at least first, second, third, fourth and fifth gear planes and at least first, second, third and fourth shifting elements, wherein the electric engine is connected via the countershaft and the fourth shifting element to the carrier of the range group, which is connected to the output shaft, so that the electric engine supports tractive force while the first planetary gear, for purpose of a range change is shifted, the fourth shifting element, in a second shifting position, connects the fifth gear plane and the carrier of the first planetary gear and thus the first planetary gear can be shifted under load.
A method for tractive force interruption-free shifting of a range group of a gear unit, which is driven by a hybrid drive comprising a combustion engine and an electric engine, where the gear unit comprises a main gear having two parallel connected partial gears and at least one countershaft, as well as an output shaft, and first and second planetary gears each having an elements carrier, a sun gear and a ring gear, each partial gear having a gear input shaft, with a first gear input shaft being designed as a hollow shaft and a second gear input shaft being designed as a solid shaft, the first planetary gear being connected, as the range group, to the main gear, the main gear comprising at least first, second, third, fourth and fifth gear planes and at least first, second, third and fourth shifting elements, the method comprising:
Dependencies are inferred from the claim text.