摘要:
The invention concerns a drive train having a hydrodynamic retarder, by means of which the drive train can be braked hydrodynamically; wherein the hydrodynamic retarder comprises a driven rotor and a stator or a driven rotor and a counter-rotor driven in reverse direction with respect to the rotor, which together form a working chamber which can be filled with working medium and which can be drained from said medium. The invention is characterised in that the hydrodynamic retarder is connected via a planetary gear to an element of the drive train guiding the drive power to the hydrodynamic retarder, and the planetary gear has a hollow wheel drivingly connected to the element, at least one planetary gear rotatably carried by the planetary carrier and a sun wheel drivingly connected to the rotor of the hydrodynamic retarder, and a brake is associated with the planetary carrier, by means of which the planetary carrier can be released in a first operating mode, in non-braking operation of the hydrodynamic retarder so that the planetary carrier can rotate over a planetary carrier axis, and can be braked and/or can be locked in a second operating mode, in braking operation of the hydrodynamic retarder.
摘要:
The invention relates to a starting unit (1, 1.2, 1.3, 1.4, 1.5, 1.6) comprising a starting element in the form of a hydrodynamic component (5, 5.2, 5.3, 5.4, 5.5, 5.6) and a housing (17, 18) that is coupled with the primary impeller (6) in a static or rotationally fixed manner and that encloses at least one impeller (7, 8) in the axial direction, thereby defining at least one working fluid guide channel or compartment (19). The invention is characterized in that the unit is provided with means (2) for influencing the transmission behavior of the hydrodynamic component (5). Said means comprise pressure medium-actuated integrated mechanical components (3) that have an at least indirect effect on the working cycle ensuing in the working compartment (8, 8.2, 8.3, 8.4, 8.5, 8.6). The pressure medium-actuated integrated mechanical components (3) are impinged upon by a pressure medium from the supply channel (20) or the first working medium guide channel or compartment (19), the position of the pressure medium-actuated integrated mechanical components (3) relative to the working compartment (8) being a function of the differential pressure of the pressure medium branched off from the first supply channel (20) or the first working medium guide channel or compartment (19) and the pressure in the interior of the housing (17, 18) in the area of the regulating device (26, 31).
摘要:
The invention relates to a starting unit comprising: an input, which can be coupled to a drive, and an output that can be coupled to a driven part; a starting element provided in the form of a hydrodynamic component, comprising at least one primary turbine wheel and one secondary turbine wheel that, together, form a working chamber which can be filled with operating material; an engaging and disengaging clutch comprising at least two clutch elements that can be brought into frictionally engaged active contact with one another in a direct or indirect manner via additional intermediate elements, the first clutch element being at least indirectly connected to the input in a rotationally fixed manner and the second clutch element being at least indirectly connected to the output in a rotational fixed manner; an adjusting device assigned thereto, and; a stationary or rotating housing that surrounds at least one of the turbine wheels while forming an adjoining chamber. The adjusting device of the engaging and disengaging clutch is situated in the adjacent chamber while forming a first operating material supply channel or space and can be subjected to the action of pressure prevailing therein. The operating material supply channel or space can be connected at least indirectly to an operating means supply source. The invention is characterized by the following features: means for influencing the transmission behavior of the hydrodynamic component, comprising at least one mechanical built-in part that acts at least indirectly upon the working circuit ensuing inside the working chamber; an adjusting device assigned to the mechanical built-in part, and means for subjecting the adjusting device to a differential pressure, which results from the pressure in the first operating means supply channel or space or in a channel or space coupled thereto or in the interior of the housing, and to a control pressure.
摘要:
The invention relates to a starting unit (1, 1.2, 1.3, 1.4, 1.5, 1.6) comprising a starting element in the form of a hydrodynamic component (5, 5.2, 5.3, 5.4, 5.5, 5.6) and a housing (17, 18) that is coupled with the primary impeller (6) in a static or rotationally fixed manner and that encloses at least one impeller (7, 8) in the axial direction, thereby defining at least one working fluid guide channel or compartment (19). The invention is characterized in that the unit is provided with means (2) for influencing the transmission behavior of the hydrodynamic component (5). Said means comprise pressure medium-actuated integrated mechanical components (3) that have an at least indirect effect on the working cycle ensuing in the working compartment (8, 8.2, 8.3, 8.4, 8.5, 8.6). The pressure medium-actuated integrated mechanical components (3) are impinged upon by a pressure medium from the supply channel (20) or the first working medium guide channel or compartment (19), the position of the pressure medium-actuated integrated mechanical components (3) relative to the working compartment (8) being a function of the differential pressure of the pressure medium branched off from the first supply channel (20) or the first working medium guide channel or compartment (19) and the pressure in the interior of the housing (17, 18) in the area of the regulating device (26, 31).
摘要:
A drive system for a motor vehicle is provided. The drive system has a drive assembly, at least one power transmission unit that is coupled with the drive assembly and an electrical machine coupled at least indirectly with the drive assembly. The power transmission unit has at least one starting element with a hydrodynamic clutch and a bridging clutch. A rotor or armature of the electrical machine is arranged coaxially to the hydrodynamic clutch and can be coupled with it in a torsionally rigid manner.
摘要:
The invention relates to a starting unit comprising: an input, which can be coupled to a drive, and an output that can be coupled to a driven part; a starting element provided in the form of a hydrodynamic component, comprising at least one primary turbine wheel and one secondary turbine wheel that, together, form a working chamber which can be filled with operating material; an engaging and disengaging clutch comprising at least two clutch elements that can be brought into frictionally engaged active contact with one another in a direct or indirect manner via additional intermediate elements, the first clutch element being at least indirectly connected to the input in a rotationally fixed manner and the second clutch element being at least indirectly connected to the output in a rotational fixed manner; an adjusting device assigned thereto, and; a stationary or rotating housing that surrounds at least one of the turbine wheels while forming an adjoining chamber. The adjusting device of the engaging and disengaging clutch is situated in the adjacent chamber while forming a first operating material supply channel or space and can be subjected to the action of pressure prevailing therein. The operating material supply channel or space can be connected at least indirectly to an operating means supply source. The invention is characterized by the following features: means for influencing the transmission behavior of the hydrodynamic component, comprising at least one mechanical built-in part that acts at least indirectly upon the working circuit ensuing inside the working chamber; an adjusting device assigned to the mechanical built-in part, and means for subjecting the adjusting device to a differential pressure, which results from the pressure in the first operating means supply channel or space or in a channel or space coupled thereto or in the interior of the housing, and to a control pressure.
摘要:
The invention relates to a starter unit (1) comprising an input (E) which may be coupled to a drive input, an output (A) which may he coupled to a drive output, a starter element (2) in the form of a hydrodynamic coupling (3), a switchable clutch (7), comprising at least two clutch elements, which may be brought into frictional engagement, either directly or indirectly, by means of further transfer agents, being a first clutch element (10) and a second clutch element (11) each rotationally fixed to the input (E) and the output (A) respectively. The hydrodynamic coupling (3) and the switchable clutch (7) are arranged in a parallel fashion in two power branches (8,9) and may be activated individually or in common.
摘要:
The invention relates to an elastic coupling in disc construction, in particular for damping torsional vibrations of an internal combustion engine, having the following features: a first coupling half, which comprises two side discs, which are connected in a rotationally-fixed manner on the outer circumference; a second coupling half, which is formed by at least one middle disc assigned to a hub, which is arranged between the side discs and enveloped thereby; the two coupling halves are pivotable to a limited extent to one another against the force of at least one elastic coupling element; the side discs delimit a liquid-tight inner space, which receives the middle disc, at least one damping chamber, which is variable in volume during the mutual pivoting of the coupling halves and is filled with a damping medium, is arranged in the radial outer area of the inner space; a floating damping ring, which is pivotable to a limited extent in relation to each of the two coupling halves, is introduced into the inner space, the damping ring forming at least one first partial chamber of the damping chamber with the first coupling half and forming at least one second partial chamber of the damping chamber with the second coupling half; the floating damping ring being divided over the circumference of the coupling into individual ring segments, which are separate from one another, and which are mounted to slide on the radial exterior on the middle disc and/or on the radial interior on an outer edge of at least one side disc. The elastic coupling according to the invention is characterized in the state which is not loaded in the peripheral direction by the damping medium or one of the two coupling halves, the ring segments, at one or both axial ends, have a predefined spacing in the radial direction of the coupling in relation to the middle disc and/or in relation to the outer edge of at least one side disc, and the ring segments are mounted in a bending or tilting manner on the middle disc and/or at least one side disc in such a manner that the predefined spacing at the axial end of the ring segments in relation to the middle disc and/or the outer edge of at least one side disc is bridged by bending or tilting in the state of the ring segments which is loaded in the peripheral direction by the damping medium or one of the two coupling halves.
摘要:
A drive system for a motor vehicle is provided. The drive system has a drive assembly, at least one power transmission unit that is coupled with the drive assembly and an electrical machine coupled at least indirectly with the drive assembly. The power transmission unit has at least one starting element with a hydrodynamic clutch and a bridging clutch. A rotor or armature of the electrical machine is arranged coaxially to the hydrodynamic clutch and can be coupled with it in a torsionally rigid manner.
摘要:
The invention relates to a hydrodynamic component comprising at least two elements which form a working chamber therebetween and which comprises a primary wheel and a secondary wheel. A working medium which can be introduced into the working chamber allows torque to be transmitted between said elements. At least one of the elements is arranged in a rotationally fixed manner on a shaft. The hydrodynamic component comprises a device for detecting a variable characterising at least directly the transmitted torque and/or the rotation of the shaft. According to the invention, the shaft is at least designed to have at least two sections which are at an axial distance from each other and which are made of a ferromagnetic material and is provided with a magnetic field which is rotationally stable with the respective section. Magnetic field sensors are arranged in areas corresponding to the at least two sections.