摘要:
A method for the automatic initialization of the electronic wheel systems of a tire pressure checking system, performs the now described steps. Record signals are sent by electronic wheel systems. The received signals are evaluated on the basis of their signal strength by using criteria, which are obtained in at least one of the now described substeps. The signal strength in question of the received signals is average, the signal strength in question of the received signals is compared with a predefined threshold value, and the minimum and/or the maximum values of the signal strength of the received signals are calculated. The electronic wheel systems allocated to the tire pressure checking system are selected on the basis of the criteria obtained in the above-mentioned steps. The selected electronic wheel systems are automatically initializated.
摘要:
A method for detecting a pressure loss of a tire in a vehicle equipped with a tire pressure monitoring system. The method includes the following steps carried out in the parked state of the vehicle: deactivate the tire pressure monitoring system, which contains at least one electronic wheel device disposed in a vehicle wheel, activate the tire pressure monitoring system after a first defined period of time or upon a vehicle-side request, determine tire-related information of the vehicle wheels associated with the electronic wheel devices by the respective electronic wheel device and generate status signals containing the tire-related information, communicate the status signals to an evaluation device, return to the first method step at the latest after a second period of time.
摘要:
A simple and cost-effective manufacturing method for hybrid integrated components including at least one MEMS element, a cap for the micromechanical structure of the MEMS element, and at least one ASIC substrate, using which a high degree of miniaturization may be achieved. The micromechanical structure of the MEMS element and the cap are manufactured in a layered structure, proceeding from a shared semiconductor substrate, by applying at least one cap layer to a first surface of the semiconductor substrate, and by processing and structuring the semiconductor substrate proceeding from its other second surface, to produce and expose the micromechanical MEMS structure. The semiconductor substrate is then mounted with the MEMS-structured second surface on the ASIC substrate.
摘要:
A manufacturing method for a cap, for a hybrid vertically integrated component having a MEMS component a relatively large cavern volume having a low cavern internal pressure, and a reliable overload protection for the micromechanical structure of the MEMS component. A cap structure is produced in a flat cap substrate in a multistep anisotropic etching, and includes at least one mounting frame having at least one mounting surface and a stop structure, on the cap inner side, having at least one stop surface, the surface of the cap substrate being masked for the multistep anisotropic etching with at least two masking layers made of different materials, and the layouts of the masking layers and the number and duration of the etching steps being selected so that the mounting surface, the stop surface, and the cap inner side are situated at different surface levels of the cap structure.
摘要:
A component system includes at least one MEMS element, a cap for a micromechanical structure of the MEMS element, and at least one ASIC substrate. The micromechanical structure of the MEMS element is implemented in the functional layer of an SOI wafer. The MEMS element is mounted face down, with the structured functional layer on the ASIC substrate, and the cap is implemented in the substrate of the SOI wafer. The ASIC substrate includes a starting substrate provided with a layered structure on both sides. At least one circuit level is implemented in each case both in the MEMS-side layered structure and in the rear-side layered structure of the ASIC substrate. In the ASIC substrate, at least one ASIC through contact is implemented which electrically contacts at least one circuit level of the rear-side layered structure and/or at least one circuit level of the MEMS-side layered structure.
摘要:
A method and a device for locating tires mounted on a vehicle. High frequency signals are captured by way of a first transmit/receive device arranged on a vehicle, said high-frequency signals originating from a wheel electronic system arranged on the vehicle, said wheel electronic system interacting with tires of a first tire group that are mounted on the vehicle. A trigger signal having a frequency that is clearly lower than the frequency of the high frequency signal, is emitted by the first transmit/receive device. The first transmit/receive device is arranged on the vehicle in such a manner that the tires of the first tire group are mounted on the vehicle and the level of the first trigger signal is selected in such a manner that only one part of the wheel electronic system, which is associated with the tires of the first tire group, captures the first trigger signal and the high frequency signals which originate from the part of the wheel electronic system of the tires of the first wheel group that has captured the first trigger signal, contains information on the obtained first trigger signal.
摘要:
A micromechanical acoustic sensor element, which has at least one diaphragm and at least one fixed counter element, the diaphragm being situated in a cavity between a substrate and the counter element and acting as movable electrode of a capacitor system, the counter element acting as first fixed counter electrode of this capacitor system, and at least one through hole being formed in the substrate for the application of sound pressure to the diaphragm. For fixation and strengthening purposes, the counter element is connected to the substrate via at least one support element. The support element is situated in the region of the cavity, and an opening is formed in the diaphragm for the support element.
摘要:
Process for the preparation of low-peroxide polymer comprising the treatment of the polymer with elemental metal in the presence of a liquid, polymer obtainable by this process, the use thereof, and also drugs comprising this polymer.
摘要:
A manufacturing method for producing a micromechanical sensor element which may be produced in a monolithically integrable design and has capacitive detection of a physical quantity is described. In addition to the manufacturing method, a micromechanical device containing such. a sensor element, e.g., a pressure sensor or an acceleration sensor, is described.
摘要:
A micromechanical structure and a method for producing a micromechanical structure are provided, the micromechanical structure being configured for receiving and/or generating acoustic signals in a medium at least partially surrounding the structure. The structure includes a first counterelement that has first openings and essentially forms a first side of the structure, a second counterelement that has second openings and essentially forms a second side of the structure, and an essentially closed diaphragm disposed between the first counterelement and the second counterelement.