Abstract: An actuator arrangement for a motor vehicle transmission includes a pump device, a shifting interface, and a switching logic device. The pump device has a pump for fluidic actuation of a clutch, and an electric motor for driving the pump. The shifting interface is connected to the pump device for actuating the motor vehicle transmission. The shifting interface has at least one of a shift lever, a shifting pawl mechanism, or a shifting shaft. The switching logic device is arranged between the shifting interface and the pump device. The pump device is arranged to actuate the shifting interface sequentially with respect to the clutch.

Abstract: A fluid assembly in a hydraulic circuit, comprising one or more reservoirs configured to store fluid. The fluid assembly also includes a pump configured to transport the fluid in the hydraulic circuit and actuate a load from a transmission of a motor vehicle, a pressure accumulator configured to collect pressure built up by the pump and actuate the load, and a valve system configured to allow fluid communication of the load with the pump.

Abstract: A method for adjusting and adapting an operating point of a hydraulic actuator arrangement, in which a volume flow source is connected to a hydraulic cylinder via a pressure line that is filled with a hydraulic fluid. The method includes regulating a volume of the hydraulic fluid by the volume flow source, wherein an operating point of a position of the actuator arrangement corresponds, with respect to a predefined parameter, to a device which is to be actuated by the actuator arrangement. A modified volume of the hydraulic fluid which is necessary to adjust the operating point is derived from a rotational position of a volume flow source motor and/or of the volume flow source.

Abstract: A hydraulic circuit for a hybrid drive train for changing driving operation states of a hybrid-operated vehicle, comprising a first fluid flow source including a first pump actuator, a second fluid flow source featuring a second pump actuator, a first shuttle valve arranged between the first pump actuator and the second pump actuator, a first clutch and a second clutch that are fluidically connected to the first shuttle valve so that the first clutch and the second clutch can respectively be fluidically controlled via the first pump actuator or the second pump actuator, a third clutch configured to be fluidically controlled at least via the first pump actuator, and a fourth clutch configured to be fluidically controlled at least via the second pump actuator.

Abstract: The invention relates to a gearbox control system for the fluidic operation of a gearbox which includes a plurality of gears that can be selected and shifted by a gearbox actuator device, and for the fluidic operation of two partial clutches of a dual clutch. The invention is characterized in that the gearbox control system includes two reversing pump actuators which are each assigned one of the partial clutches and which each have two connections to which a fluidic AND valve is connected, the latter having a tank connection as a third connection, wherein the gearbox actuator device is connected to the two reversing pump actuators via a fluidic OR valve.

Abstract: A fluid arrangement including apparatus and a method for fluid actuation of at least one motor vehicle drive train component, such as a transmission or a clutch. The fluid arrangement has at least one fluid actuation system and a fluid energy source. The fluid energy source includes a fluid pump having a first fluid transport direction for actuating the motor vehicle component, and having a second fluid transport direction that is opposite the first fluid transport direction and in which second fluid transport direction the fluid pump provides a stream of fluid to cool the motor vehicle component.

Abstract: A drive train for a motor vehicle includes an internal combustion engine, a starting device, and a vibration isolation device. The internal combustion engine has a main order of vibration and an excitation frequency predetermined by a predetermined operating principle and a predetermined number of cylinders. The starting device is for starting the internal combustion engine and has an electric machine with a torque characteristic over a speed (n). The vibration isolation device is designed for the main order of vibration of the internal combustion engine. The vibration isolation device has a resonance characteristic below an idling speed (nL) of the internal combustion engine in a resonance range occurring in a first speed range (?n2). The resonance range is shifted into a second, lower speed range (?n1 when the electric machine is coupled. The electric machine is arranged to supply a torque effective beyond the second, lower speed range (?n1.).

Abstract: A control unit arrangement for controlling a fluid arrangement is disclosed, having at least one transmission actuator element, at least one valve and at least one pump, for clutch and transmission activation. The control unit arrangement includes a plurality of control units, wherein at least one control unit of the plurality of control units is configured to actuate the at least one transmission actuator element and at least one control unit of the plurality of control units is configured to actuate the at least one pump. One of the control units from the plurality of control units is configured to actuate the at least one valve, or at least two of the control units from the plurality of control units are connected via an OR logic for a common actuation of the at least one valve.

Abstract: A fluid arrangement for controlling a transmission of a motor vehicle in a hydraulic circuit is disclosed. The fluid arrangement includes a dual clutch including a first sub-clutch and a second sub-clutch, wherein the first sub-clutch is configured to be actuated via a first reversing pump actuator and the second sub-clutch is configured to be actuated via a second reversing pump actuator. The first and second reversing pump actuators each have a first delivery direction and a second delivery direction for delivering a working fluid in the hydraulic circuit. A first gear ratio mechanism with a variable gear ratio for actuating the dual clutch is configured to be actuated via the first delivery direction of the first and second reversing pump actuators a and a second gear ratio mechanism with a variable gear ratio for actuating a consumer arrangement is configured to be actuated via the second delivery direction.

Abstract: The invention relates to a clutch device for a drivetrain of a motor vehicle, including a pressure plate which is preferably displaceable in the axial direction of the clutch device, wherein the pressure plate, in a coupled position of the clutch device, presses a clutch disk against a counterpressure plate that can be connected to a crankshaft of an internal combustion engine, and including an actuating device which has a displaceable actuating piston. The displacement position of the actuating piston defines a position of the pressure plate and the actuating piston can be driven by a drive unit of the actuating device in order to displace the pressure plate between the coupled position and an uncoupled position. The drive unit has at least one pump, and the at least one pump is accommodated in a pump seat housing and the pump seat housing is connected to the counterpressure plate in such a way as to rotate therewith.

Abstract: A method for adjusting and adapting an operating point of a hydraulic actuator arrangement, in which a volume flow source is connected to a hydraulic cylinder via a pressure line that is filled with a hydraulic fluid. The method includes regulating a volume of the hydraulic fluid by the volume flow source, wherein an operating point of a position of the actuator arrangement corresponds, with respect to a predefined parameter, to a device which is to be actuated by the actuator arrangement. A modified volume of the hydraulic fluid which is necessary to adjust the operating point is derived from a rotational position of a volume flow source motor and/or of the volume flow source.

Abstract: A fluid assembly in a hydraulic circuit, comprising one or more reservoirs configured to store fluid. The fluid assembly also includes a pump configured to transport the fluid in the hydraulic circuit and actuate a load from a transmission of a motor vehicle, a pressure accumulator configured to collect pressure built up by the pump and actuate the load, and a valve system configured to allow fluid communication of the load with the pump.

Abstract: The invention relates to an actuating device for actuating a clutch and/or a transmission of a motor vehicle, including a pump having two fluid connections and including a movable actuating element fluidically connected to a first fluid connection of the pump, wherein the pump is designed such that in a first pump position, in which the pump is driven in a first direction of rotation, for extending the actuating element the pump conveys a pressure fluid in a first conveying direction from a second fluid connection to the first fluid connection, wherein the pump is configured as a variable displacement pump which is reversible with regard to the conveying direction of the pump, wherein the pump is designed such that after it has been moved into a second pump position, in which the pump is driven in the first direction of rotation, for retracting the actuating element the pump conveys a pressure fluid in a second conveying direction, opposite the first conveying direction, from the first fluid connection to the

Abstract: The invention relates to a gearbox control system for the fluidic operation of a gearbox which includes a plurality of gears that can be selected and shifted by a gearbox actuator device, and for the fluidic operation of two partial clutches of a dual clutch. The invention is characterized in that the gearbox control system includes two reversing pump actuators which are each assigned one of the partial clutches and which each have two connections to which a fluidic AND valve is connected, the latter having a tank connection as a third connection, wherein the gearbox actuator device is connected to the two reversing pump actuators via a fluidic OR valve.

Abstract: The invention relates to a clutch device for a drivetrain of a motor vehicle, including a pressure plate which is preferably displaceable in the axial direction of the clutch device, wherein the pressure plate, in a coupled position of the clutch device, presses a clutch disk against a counterpressure plate that can be connected to a crankshaft of an internal combustion engine, and including an actuating device which has a displaceable actuating piston. The displacement position of the actuating piston defines a position of the pressure plate and the actuating piston can be driven by a drive unit of the actuating device in order to displace the pressure plate between the coupled position and an uncoupled position. The drive unit has at least one pump, and the at least one pump is accommodated in a pump seat housing and the pump seat housing is connected to the counterpressure plate in such a way as to rotate therewith.

Abstract: A fluid arrangement including apparatus and a method for fluid actuation of at least one motor vehicle drive train component, such as a transmission or a clutch. The fluid arrangement has at least one fluid actuation system and a fluid energy source. The fluid energy source includes a fluid pump having a first fluid transport direction for actuating the motor vehicle component, and having a second fluid transport direction that is opposite the first fluid transport direction and in which second fluid transport direction the fluid pump provides a stream of fluid to cool the motor vehicle component.

Abstract: The invention relates to a variable displacement pump having two connections for supplying and withdrawing a volume flow guided by said variable displacement pump. The invention is characterized in that this variable displacement pump includes an additional connection for providing and additional volume flow.

Abstract: A hydraulic arrangement by which a plurality of shift rails of a transmission are actuated, including one double acting cylinder per shift rail by which the respective shift rail can be moved back and forth. A first hydraulic valve is connected upstream of the plurality of shift rails and has a first output and a second output, by which a first shift pressure and a second shift pressure for actuating the shift rails can be provided. A second hydraulic valve is connected between the first hydraulic valve and two of the shift rails, and by which it is selectively possible for the first output of the first hydraulic valve to be associated with one of the double acting cylinders of the two shift rails, and the second output of the first hydraulic valve to be associated with the other double acting cylinder of the two shift rails.

Abstract: A hydraulic system for actuating a motor vehicle transmission by a control hydraulic power source that includes a control hydraulic pump for providing a high hydraulic pressure, a control pressure accumulator, and a low-pressure hydraulic pump for providing low-pressure volumetric flow of hydraulic fluid for operating a low-pressure hydraulic component. The low-pressure pump is operatively drivingly connected with the control hydraulic pump that is connected in a charged manner with the control pressure accumulator and with a transmission actuator.

Abstract: A hydraulic device, in particular for actuating a clutch, including a hydraulic working cylinder, which is arranged near the clutch and which is connected to a volumetric flow source via a hydraulic line. The volumetric flow rate of the volumetric flow source can be influenced by a control unit according to signals of the sensors associated with the hydraulic device. The volumetric flow source is formed by a combination of an electric motor and a pump arranged in a common housing.