| Patent application number | Description | Published |
|---|
| 20090004027 | Ventilation of an Operating Element - A method of actuating a piston having a first side and a second side includes the steps of generating a counter-ventilation pulse having a duration and amplitude defined to achieve a predetermined operating speed of the piston and a predetermined damping of a final position of a piston, applying an actuating pressure to the first side of the piston, and venting a second side of the piston in a defined manner using the counter-ventilation pulse so as to prevent a buildup of a maximum possible ventilation pressure. | 01-01-2009 |
| 20090048067 | METHOD AND DEVICE FOR CONTROLLING A FLUID-ACTUATED CONTROL SYSTEM - 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 ( | 02-19-2009 |
| 20090093935 | METHOD AND DEVICE FOR TRIGGERING A CIRCUIT ARRANGEMENT WITH ELECTRIC ACTUATORS - 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. | 04-09-2009 |
| 20090132136 | Method and Device for Controlling a Fluid-Actuated Control System - A method and device for controlling a fluid-actuated control system, to optimize post-switching times for actuation of control elements in such systems. The system includes at least one pressure medium source, at least one hydraulically controlled control element and a device for controlling the fluid-actuated control system. The optimum post-switching time after hydraulic actuation of the control element, depends on a number of different factors such as a control-element-specific parameter, a specific mounting location of the control element, at least one operating parameter of the fluid-actuated control system and/or of the vehicle. A post-switching time control device controls and/or regulates at least the duration of a post-switching time of the at least one control element and with the above factors determines the post-switching time. | 05-21-2009 |
| 20090161319 | Electronic Circuit Arrangement and Method for Producing an Electronic Circuit Arrangement - An electronic circuit arrangement includes a heat sink and a first circuit carrier which is thermally coupled to the heat sink, lies flat on the latter and is intended to wire electronic components of the circuit arrangement. Provided for at least one electronic component is a special arrangement which is associated with a considerably increased heat dissipation capability for the relevant component and, in addition, also affords further advantages in connection with changes in the population and/or line routing which might occur in practice. The important factor for this is that the component is arranged under a second circuit carrier which is held in a recess in the first circuit carrier. The recess passes through to the top side of the heat sink. | 06-25-2009 |
| 20090168309 | SEALING A CONTROL DEVICE - A housing comprising at least one electrical connection through a housing wall that is particularly inexpensive to produce and allows the electronic components located on the internal face and the external face of the housing to be attached in a particularly variable manner. The electrical connection is directly surrounded by housing material while being additionally sealed by means of sealing material. The inventive housing seal is provided with a profiled seal encompassing at least two sealing lips. The sealing material is additionally used for sealing the cover and/or the bottom relative to the housing wall. The arrangement is also particularly well protected against oil and other aggressive media as a combination of housing material and sealing material is used for surrounding the electrical connection. | 07-02-2009 |
| 20110146824 | CONTROL SYSTEM OF A SHIFT CYLINDER - A control system for a pneumatically or hydraulically actuated shift cylinder of a transmission or transmission-related auxiliary drive output, namely, for controlling at least one valve associated with the shift cylinder, such that each shift position of the shift cylinder can be produced. The control system includes: a) devices of a first type with which valve requirements corresponding to a plurality of functions demanded from the shift cylinder can be calculated at the same time, or in parallel, for the valve; b) devices of a second type which logically link the valve requirements calculated for the valve individually for each valve so that, from the valve requirements calculated in parallel for the respective valve, the devices of the second type determine an effective control measure for the valve concerned. | 06-23-2011 |
