Actuation device
AssigneeLuK Lamellen und Kupplungsbau Beteiligungs KG
InventorsJeff Hemphill, Trevor McConnell, Patrick Lindemann
Life of this patent
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Abstract
The invention relates to an actuating apparatus that can be used, for example, as an actuating apparatus for a motor vehicle transmission, the select function and the shift function being guaranteed by this actuating apparatus and it being possible to effect this using exactly one electric motor, and it being possible, starting from an original gear, to alternatively engage at least three different target gears without it being necessary in between to shift into an intermediate gear.
Claims11
A drive train in a motor vehicle having an internal combustion engine and an automated actuation manual shift transmission having a plurality of gears and at least one friction clutch operating between the internal combustion engine and a transmission, wherein both the friction clutch and the gears are shifted using an actuating apparatus.
A method for the automated control of gear change operations in a motor vehicle transmission via exactly one electric motor (12) that has an output shaft (10) having the following steps:
- driving of the output shaft (10) of the electric motor (12) in a first rotational direction (14), in order to select at least one shift element (42, 44) for a gear to be selected in the motor vehicle transmission;
- and driving of the output shaft (10) of the electric motor (12) in a second rotational direction (16) opposite the first (14) in order to operate the shift element (42, 44) selected in the first rotational direction (14) by driving the output shaft (10) and thereby shift the corresponding gear of the motor vehicle transmission or engage this gear.
A method for the automated control of a friction clutch and a transmission in a drive train of a motor vehicle via exactly one electric motor (12) having the following steps:
- driving of the output shaft (10) of the electric motor (12) in a first rotational direction (14) in order to select at least one shift element (42, 44) for the operation of the clutch and a gear to be engaged in the transmission;
- and driving of the output shaft (10) of the electric motor (12) in a second rotational direction (16), which is opposite the first (14), in order—by driving the output shaft (10)—to operate the shift elements (42, 44) selected in the first rotational direction (14) and, thus, the friction clutch and to shift the corresponding gear of the transmission or engage this gear.
Dependencies are inferred from the claim text.