摘要:
A proportional pressure control valve is described capable of serving as a pilot, servo or direct control valve and having a pressure reducing function and a pressure maintaining function. The valve is comprised essentially of a valve housing (2) with inlet and outlet ports (4, 5, 6), a control element (7), an armature rod (8) and a proportional magnet (3). The proportional magnet (3) is an assembly of a magnet core (10), a magnet armature (11) and a magnet coil (12), whereby the proportional magnet (3) when in its range of operation possesses a nearly constant magnetic strength. In accord with the invention, when in a holding position of the magnetic armature (11) the smallest possible gap (13) exists between the magnet armature (11) and the magnet core (10). This gap is so dimensioned that the magnetic force between the two said components (10, 11) in the holding position is greater than the magnetic force in the operational area of the proportional magnet (3) and that the magnetic armature (11) can be made fixed in position by this said magnetic force.
摘要:
Method for control of a proportional magnet comprising a magnet core, a magnet armature, a magnet coil for operating a control element in a shift valve or a proportional pressure-control valve, particularly a pressure-control valve for clutch operation in an automatic motor vehicle transmission, and comprising an electronic control device, whereby the magnet core may be moved back and forth between a control region and a hold region with a magnetic hold position of the magnet armature and a defined transition from the control region to the hold position may be executed and whereby mechanisms are provided for recognition of the movements of the magnet armature.
摘要:
A method for machine diagnosis and, in particular, for transmission diagnosis of a machine or motor vehicle. The measurement system comprises a capturing magnet (2), on the surface of which the ferritic wear particles (3) to be detected accumulate. A binary measurement signal is produced by a reed contact (1) arranged opposite the capturing magnet (2). This measurement gives an indication of the condition of the machine or transmission.
摘要:
A housing (1) with at least one electrical connection (7) through a housing wall (4) can be manufactured especially economically and can facilitate an especially economical lacing of electronic components (2, 13) present on the interior and on the exterior of the housing (1). The electrical connection (7) is enclosed by a housing material and additionally sealed by a sealing material (6). The sealing material (6) also advantageously serves to seal a top (3) and a bottom (5) to the housing wall (4). Through the combination of the casing of the electrical connection (7) of the housing (1) and the sealing material (6), this arrangement is, moreover, especially impervious to oil or other aggressive media.
摘要:
The present invention concerns a method and a device for machine diagnosis and, in particular, for transmission diagnosis in a machine or motor vehicle. The measurement system, according to the invention, comprises a coil (2) wound on a coil core (11), on the surface of which ferritic wear particles (3) to be detected accumulate. Opposite the coil (2) a rotating toothed wheel (6) is arranged which influences the inductance of the coil (2). The output signal of the coil (2) is pulsed with a constant amplitude, the pulse frequency depends on the rotation speed of the toothed wheel (6). Deviations of the amplitude are attributable to the accumulation of ferritic wear particles (3) on the coil (2) and therefore provide a measurement of the condition of the machine or transmission.
摘要:
A housing (1) with at least one electrical connection (7) through a housing wall (4) can be manufactured especially economically and can facilitate an especially economical lacing of electronic components (2, 13) present on the interior and on the exterior of the housing (1). The electrical connection (7) is enclosed by a housing material and additionally sealed by a sealing material (6). The sealing material (6) also advantageously serves to seal a top (3) and a bottom (5) to the housing wall (4). Through the combination of the casing of the electrical connection (7) of the housing (1) and the sealing material (6), this arrangement is, moreover, especially impervious to oil or other aggressive media.
摘要:
A method and device for actuating a shifting arrangement with electric actuators of a transmission control of a motor vehicle. The method includes determining a total current of the shifting arrangement available at a point in time, detecting shift requests of shift elements and compared these with the total available current. Shift requests are then tested according to preset priorities and the sequentially performed according to the priority test. The method avoids exceeding a preset allowed current load, when the requested shifts would exceed the total available current. If the total available current would not be exceeded by the requested shifts, the requests are carried out. A device is also provided in the shifting arrangement which has control and detection mechanisms that monitor current and control the current flow.
摘要:
A device for the protection of stamped conducting paths particularly in a motor vehicle. The device having a complete envelope (4) around the conducting paths which can be made from a sprayed elastic material.
摘要:
A method and a device for controlling a fluid-actuated control system of an automatic or automated transmission of a motor vehicle, which has at least one pressure medium source, at least two control elements that are actuated by pressurized fluid and a control device for controlling the fluid-actuated control system. A further control module is used to reduce; the number and power consumption of valves that are actuated simultaneously to control the control elements; and the mechanical loading of the control elements (1, 2). The control module reads signals concerning at least one current control action and, in accordance with predetermined patterns, calculation rules and/or models, generates signals that cause non-switched control elements to be manipulated by pressurized working fluid.
摘要:
A method and a device for actuating a shifting arrangement with electric actuators with directly controlled valves of an electrohydraulic, electropneumatic, electromagnetic or electromotor transmission control of a motor vehicle. A current monitoring function, in which a total current of the shifting arrangement available at a point in time is determined, shift requests of shift elements are detected and compared with the total available current, the shift requests are tested according to preset priorities, and sequential shifting of shift elements according to the priority test is performed, is provided in order to avoid exceeding a preset allowed current load with a comparatively high current requirement of the electric consumers directly controlled valves, when the shift requests would cause the total available current to be exceeded, or direct shifting of the shift elements is carried out when the shift requests would not cause the total available current to be exceeded. A device is also provided which has control and detection mechanisms such that a current monitoring function for limiting the current flow can be generated in the shifting arrangement.