Hybrid twin-clutch transmission
AssigneeMartin Leibbrandt, Ulrich Eggert, Christian Krauss
InventorsMartin Leibbrandt, Ulrich Eggert, Christian Krauss
Life of this patent
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Abstract
The invention relates to a twin-clutch transmission, in particular for a motor vehicle, comprising: a twin-clutch arrangement with clutches, input shafts, at least one output shaft, a number of gearwheel pairs and drive units. The first drive unit is connected to the input side of the twin-clutch arrangement and the second drive unit is connected to one of the input shafts or to the output shaft. The invention relates also to a methods for controlling the twin-clutch transmission, for example with the steps of disengaging the first clutch and the second clutch if these are engaged, and starting the engine by means of the first drive unit.
Claims25
A twin-clutch transmission, in particular for a motor vehicle, comprising
- a twin-clutch arrangement with a first clutch and a second clutch and with an input side for connecting the twin-clutch arrangement to an engine;
- a first input shaft and a second input shaft, the first input shaft being connectable to the engine via the first clutch and the second input shaft being connectable to the engine via the second clutch;
- at least one output shaft;
- a number of gearwheel pairs for connecting the input shafts to the at least one output shaft, at least one gear-shifting clutch assigned to at least one of the gearwheel pairs, wherein a torque being transmittable between one of the input shafts and the at least one output shaft by the at least one of the gearwheel pairs when the gear-shifting clutch assigned to this gearwheel pair is closed, and
- at least a first drive unit and a second drive unit,
- wherein the first drive unit is connected to the input side of the twin-clutch arrangement and the second drive unit is connected to one of the input shafts or to the at least one output shaft.
A method for controlling a the twin-clutch transmission (1), in particular for a motor vehicle, comprising:
- a twin-clutch arrangement with a first clutch and a second clutch and with an input side for connecting the twin-clutch arrangement to an engine;
- a first input shaft and a second input shaft, the first input shaft being connectable to the engine via the first clutch and the second input shaft being connectable to the engine via the second clutch;
- at least one output shaft;
- a number of gearwheel pairs for connecting the input shafts to the at least one output shaft, at least one gear-shifting clutch assigned to at least one of the gearwheel pairs, wherein a torque being transmittable between one of the input shafts and the at least one output shaft by the at least one of the gearwheel pairs when the gear-shifting clutch assigned to this gearwheel pair is closed, and
- at least a first drive unit and a second drive unit,
- wherein the first drive unit is connected to the input side of the twin-clutch arrangement and the second drive unit is connected to one of the input shafts or to the at least one output shaft;
- the method comprising following method steps:
- disengaging the first clutch (3) and the second clutch (4) if these are engaged, and
- starting the engine (6) by means of the first drive unit (7).
A method for controlling a the twin-clutch transmission (1), in particular for a motor vehicle, comprising:
- a twin-clutch arrangement with a first clutch and a second clutch and with an input side for connecting the twin-clutch arrangement to an engine;
- a first input shaft and a second input shaft, the first input shaft being connectable to the engine via the first clutch and the second input shaft being connectable to the engine via the second clutch;
- at least one output shaft;
- a number of gearwheel pairs for connecting the input shafts to the at least one output shaft, at least one gear-shifting clutch assigned to at least one of the gearwheel pairs, wherein a torque being transmittable between one of the input shafts and the at least one output shaft by the at least one of the gearwheel pairs when the gear-shifting clutch assigned to this gearwheel pair is closed, and
- at least a first drive unit and a second drive unit,
- wherein the first drive unit is connected to the input side of the twin-clutch arrangement and the second drive unit is connected to one of the input shafts or to the at least one output shaft;
- the method comprising following method steps:
- disengaging all the gear-shifting clutches of the gearwheel pairs of the first or second part transmission connected to the second drive unit;
- if disengaged, engaging the first or second clutch connected to the second drive unit, so that the associated part transmission is connected to the engine;
- starting the engine by means of the first drive unit and the second drive unit.
Dependencies are inferred from the claim text.