Actuator arrangement for a motor vehicle clutch
AssigneeGETRAG Getriebe- und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KG
InventorsMartin Seufert, Tobias Kalisch, Ralf Hettich
Life of this patent
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Abstract
An actuator arrangement for a clutch of a drive train for motor vehicles. The clutch is prestressed into an opened position and can be activated electromechanically. An electric motor can be coupled to the clutch in order to activate it. A control unit actuates the electric motor. The actuator arrangement has a safety device which is connected to the electric motor parallel to the control unit. The safety device is configured, in the case of a fault state, to supply electrical power to the electric motor independently of the control unit in order to open the clutch.
Claims18
Actuator arrangement for a clutch of a drive train for motor vehicles, which clutch is prestressed by a mechanical energy store into an opened position and can be activated electromechanically, having an electric motor which can be coupled to the clutch in order to activate it, and having a control unit for actuating the electric motor, wherein the clutch is normally open, so that the clutch opens if not activated by the electric motor, wherein the actuator arrangement has a safety device which is connected to the electric motor parallel to the control unit, and the safety device is configured, in case of a fault state of the control unit, to supply electrical power to the electric motor independently of the control unit in order to always open the clutch and thereby assist the function of the mechanical energy store.
Actuator arrangement for a double clutch arrangement of a double clutch gear mechanism, having two electric motors which can be coupled to a respective clutch of the double clutch arrangement, the clutches being prestressed into an opened position by respective mechanical energy stores, and having a control unit for actuating the electric motors, wherein each of the clutches is normally open, so that the clutch opens if not activated by the electric motor, wherein the actuator arrangement has a safety device which is connected to the electric motors parallel to the control unit, and the safety device is configured, in case of a fault state of the control unit, to supply electrical power to the electric motors independently of the control unit in order to always open the clutches and thereby assist the function of the mechanical energy stores.
Actuator arrangement for a clutch of a drive train for motor vehicles, which clutch is prestressed into an opened position and can be activated electromechanically, having an electric motor which can be coupled to the clutch in order to activate it, and having a control unit for actuating the electric motor, wherein the actuator arrangement has a safety device. wherein the safety device is a safety hardware component which is provided separately from the control unit and docs not include a microprocessor, wherein the safety device is connected to the electric motor parallel to the control unit, and the safety device is configured, in case of a fault state of the control unit, to supply electrical power to the electric motor independently of the control unit in order to always open the clutch and transform the clutch within a short time into a safe state.
Dependencies are inferred from the claim text.