Abstract: A method for operating a brake installation of a vehicle. A first electrically controllable pressure provision device provides brake pressure for actuating hydraulically actuatable brakes. A first electronic open-loop and closed-loop control unit, and a first pressure detection device, measures brake pressure provided by a primary brake system. A secondary brake system between the primary system and a part of the wheel brakes has a second electrically controllable pressure provision device provides brake pressure for actuating at least the part of the brakes. A second electronic open-loop and closed-loop control unit, and at least one second pressure detection device, the signals of which are processed in the second electronic open-loop and closed-loop control unit. The secondary system monitors the primary system based on signals from the second pressure detection device and on a predefined brake pressure demand to build up a brake pressure corresponding to the predefined brake pressure demand.

Abstract: A method for improving information security for vehicle-to-X communication, wherein the vehicle-to-X communication is protectable by at least one certificate, wherein the certificate for protecting the vehicle-to-X communication has a validity period of defined length and is provided for storage in a memory of a vehicle, wherein the method is additionally distinguished in that the vehicle uses a communication link for wireless data interchange between the vehicle and a backend system, before expiry of the validity period of the certificate and a change to a validity period of defined length for an updated certificate, to ask the backend system to provide an up-to-date piece of time information for the vehicle. In addition, the invention relates to a corresponding communication apparatus for vehicle-to-X communication.

Abstract: A brake-pressure control device for a motor-vehicle braking system, with an electric motor, the rotatory motion of which is transformed by a ball screw drive into a translatory motion of a piston in a working cylinder, in order to be able to build up a defined braking pressure in a wheel brake independently of actuation of a master brake cylinder. An aspect provides that the ball screw drive is provided with a friction slip coupling engaged over a profiled tube which is fixedly connected to a nut of the ball screw drive and to which the piston is fixed.

Abstract: The sensor for detecting the position of a generator element which outputs a position-dependent physical variable, the sensor includes a transducer for converting the physical variable into an electric generator signal, a circuit on a wiring support for receiving the generator signal from the transducer and outputting a measurement signal that corresponds to the generator signal and a protective compound which at least partially surrounds the transducer and the wiring support, thus retaining the transducer on the wiring support.

Abstract: A sensor including at least one sensor element, at least one signal processing circuit, and at least one housing inside which the sensor element and the signal processing circuit are arranged. The sensor further includes an electronic identification device.

Abstract: An apparatus for measuring a measured variable, wherein a first inductance and at least one measurement inductance are coupled, and wherein dithering is used to increase accuracy.

Abstract: The abutment of a drum brake is formed from a solid material which deforms under load, wherein measurement devices are provided which detect this deformation. The abutment has two limbs, on which the brake shoes are supported. The changing distance between the two brake shoes under load is determined by detecting the distance between extension rods on the limbs by a measurement device comprising magnets and Hall sensors or AMR sensors.

Abstract: An injection-molding device for producing a hollow-formed plastic object, at least comprising a mold for the primary shaping of the plastic object, an injection device for at least partially introducing a flowable polymer melt into a cavity within the mold and a fluid injection device for introducing a pressurized fluid and for driving a projectile through the polymer melt introduced into the cavity, the mold comprising a mold wall and a mold core that is arranged at least partially within the mold wall, the projectile being formed at least partially in such a hollow-formed manner that it is arranged on the mold core and is movable along a longitudinal extent of the mold core on the latter. A projectile injection process for producing a hollow-formed plastic object with this injection-molding device and a hollow-formed plastic object produced by this process.

Abstract: A safety system brake system comprises a hydraulic pressure-providing device having a pressure chamber connected to at least one brake circuit by a separating valve and into which pressure chamber a piston is moved to build up pressure. The pressure chamber is a two-stage pressure chamber having first and second sub-chambers. During pressure build-up the piston is moved into the first and then the second sub-chamber. The two sub-chamber are hydraulically closed off from each other when the piston is moved a specified distance into the second sub-chamber. A first check valve is connected to the first sub-chamber on a suction side and to a brake fluid reservoir on a blocking side. A second check valve is connected to the second sub-chamber on a suction side, and to the suction side of the first check valve on the blocking side.

Abstract: A method for updating an electronic card in a vehicle based on a deviation between predicted states and actual states comprises calculating a predicted state of the vehicle, establishing an actual state of the vehicle, determining a deviation between the predicted state and the actual state, and storing information in the map if the predicted state and the actual state deviate from one another.

Abstract: A method for operating a central server, which enables a central management of control cards containing traffic rules. The invention further includes methods for handling control cards in vehicles, in particular in cooperation with such a central server.

Abstract: A method for saving the information security of data transmitted by a databus, in which the data to be transmitted via the databus from a transmitter (ECUs) to at least one receiver (ECUR) are divided into data blocks (M0 . . . Mn) before being sent off, wherein the data blocks (M0 . . . Mn) are encrypted and/or signed block by block by means of a sponge construction for forming a cryptological hash function, utilizing a key, and cipher blocks (C0 . . . Cn) generated in this way are transmitted via the databus to the at least one receiver. The invention also relates to a corresponding databus system.

Abstract: A method for ascertaining an operating variable of a drum brake, the method using forces acting on supporting bearings. The invention further relates to an associated drum brake assembly, an associated analysis unit and an associated storage medium.

Abstract: Pressure body for an air-spring system, which is produced from a plastics material, wherein the pressure body comprises an outer enveloping structure and an internal reinforcing structure, wherein the enveloping structure comprises a multiplicity of convexly shaped segments, which are arranged adjacent to one another and form part of a wall of the pressure body.

Abstract: A system for improving the data security during a communication process, including at least one processor and a hardware security module. The communication data is authenticated prior to a transmission process, and the authenticity of the communication data is checked upon being received. The authentication is carried out by the processor, and the authentication check is carried out by the hardware security module, wherein the communication data is car-to-X messages. The processor and the hardware security module are linked via a common secret element such that at least the hardware security module cannot be coupled to another processor.

Abstract: A backing plate for a disk brake lining, a disk brake lining, and a motor-vehicle partially lined disk brake, wherein the backing plate and a corresponding disk brake lining having friction material are provided and wherein a retaining protrusion having a through-hole for receiving a retaining pin is provided on the backing plate radially inside on an end face, and wherein a guide protrusion having a jaw opening and having a receiving pocket for receiving a guide pin is positioned radially outside on the opposite end face.

Abstract: The present invention relates to a vehicle control device for a vehicle, comprising a number of first control devices which are independent of each other and are arranged in a first logical level and designed to calculate predetermined first vehicle control functions and to output first calculation results, a number of further control devices which are independent of each other, are arranged in a number which is superordinate from the first logical level and hierarchically arranged among each other and are designed to calculate further predetermined vehicle control functions and to output further calculation results. According to the invention, the further control devices are designed to use calculation results only of those control devices as input variables for the corresponding vehicle control functions which are arranged in logical levels hierarchically below the logical level of the respective control device.

Abstract: A vehicle-to-X communication arrangement has a decision unit and a vehicle-to-X communication module, wherein the vehicle-to-X communication module forwards vehicle-to-X messages together with a signature to the decision unit which performs a safety check using the respective signature.

Abstract: A novel, particularly rationally designed, modular parking brake actuator for an electric drum brake system. An axle A1 from the motor, including a screw gear pinion coupled in a rotationally fixed manner, and an axle of the spindle arrangement, including a screw gear which is coupled in a rotationally fixed manner to the drive nut, define under a deflection of 90° a single wheel gearbox stage of the parking brake actuator.

Abstract: A method for detecting a multipath effect in a GNSS receiver which is designed to receive different signals from a GNSS satellite and includes a parameter which is determined from directly received signals and has a substantially constant target value, including the steps receiving at least two mutually independent signals; determining a current parameter value from at least the first and the second signal; evaluating the parameter value in relation to the target value, and detecting a multipath effect when the parameter value has a deviation (?K) which deviates from the already known target value.