Abstract: Presented in an apparatus for controlling a brushless DC motor with a permanent magnet arranged on a rotor and a stator with windings. The apparatus includes an observer that is adapted to determine an estimated temperature of the permanent magnet as a function of the temperature of the windings, and determine at least one actuating signal for controlling the DC motor as a function of the estimated temperature of the permanent magnet.

Abstract: The invention relates to a device and a method for controlling at least one air conducting element (15) in a motor vehicle. Said device comprises a first gas sensor (51) and a second gas sensor (52) which generate signals in accordance with the harmful gas concentration in the ambient air. An output signal that is used for triggering the air conducting element is generated with the aid of a signal evaluation unit. The aim of the invention is to create a method and a device which are used for controlling an air conducting element, accurately detect and distinguish the different development of harmful gas concentrations in the atmosphere and trigger the air conducting elements accordingly, and are embodied in an inexpensive, reliable, and durable manner. Said aim is achieved by configuring an electronic decision unit (4) that determines which of the two sensor signals is fed to a single signal evaluation unit during the current interval.

Abstract: To improve coolant sealing or reduce the risks in the event of leakage for an electronic unit, e.g. an engine control unit, containing electric and/or electronic components which are disposed on an upper side of a thermally conductive electronic base plate and thermally coupled to the base plate, the base plate in turn being thermally coupled to a coolant passage, there is provided a particular configuration and arrangement of the components delimiting a coolant passage. Advantageously, the underside of the base plate can come into direct contact with a coolant (“direct cooling”). By making a ridge running in an annularly closed manner and being formed in one-piece with the base plate, coolant escaping from the coolant passage is prevented from passing directly to the underside of the base plate. Accordingly, the coolant passage may be sealed by a “double sealing arrangement” on the underside of the base plate.

Abstract: In an adaptation method of an internal combustion engine for optimized combustion, the actually supplied cylinder-specific air masses are determined by determining the change in speed of the internal combustion engine within a thrust phase and by assigning these changes in speed to the cylinder-specific compression phases 20. This enables the fuel quantity to be injected to be more precisely adjusted to the cylinder-specific air mass available.

Abstract: The invention relates to a head-up-display (1) comprising an image generating unit (13, 7, 8) and at least one mirror (9, 10) which is arranged in the beam path (2) downstream from the image generating unit (13; 7, 8). Traditional head-up-displays (1) require an expensive adjusting element by taking into account the individual geometry of the built-in windscreen (WS) for good image quality. According to the invention, the mirror (9, 10) is embodied in such a manner that it can be deformed by adjusting elements (15, 16) in order to facilitate the control thereof.

Abstract: A cooling system through which liquid flows for carrying away waste heat for electronics housings is particularly suited for the automotive industry. The cooling system is adapted to the dimensions of the housing. The novel device is the first to create an effective cooling system for electronics housings with and for a number of circuit board levels, yet with a space-saving compact design.

Abstract: A tendency of the controlled load to oscillate when controlling a capacitive load can be avoided according to a piezo actuator for an injection valve of an internal combustion engine, having charging and discharging processes for charging and discharging the capacitive load by means of a load current, each loading process being effected by chronological partial load current pulses according to chronological partial charging capacity pulses (p1, p2, . . . pn), wherein the envelope (E) of the partial charging capacity pulses (p1, p2, . . . pn), during the loading process, increases in a strictly monotonous manner in an initial phase, and the slope of the envelope decreases in a monotonous manner.

Abstract: A device and a method for detecting seat occupancy, with the device including first and second sensor elements associated with a respective seat surface. First and second weight-dependent sensor signals are electrically obtainable from the sensor elements. The seat occupancy is determined by taking either the first or the second sensor signals in dependence on an ambient temperature.

Abstract: In order to control an electromotive drive, a control unit has control modules for controlling half-bridge end power stages. Two of the control modules are pre-configured for alternatively controlling a commutator motor or a brushless electric motor via two half-bridge end power stages. A third control module can be subsequently configured to control a third half-bridge end power stage or two individual switching elements. An electromotive drive ideally can be configured with the stated control unit.

Abstract: A circuit arrangement for switching a load includes at least one at least partially inductive load, at least one high side switch with a controlled path connected in series with the load and between supply terminals for a supply voltage. At least one freewheeling diode is connected with a first tap between the high side switch and the load. At least one clamp circuit is connected to a control terminal of the high side switch and is used to limit the control potential applied to the control terminal to a first pre-determined voltage value when the high side switch is switched off.

Abstract: A method of transmitting data on a data line between a central control device and a decentralized data processing device. During a normal operation of the system, the central control device periodically sends synchronization pulses to the at least one data processing device via the data line in order to request data packets, and the decentralized data processing device sends the data thereof to be transmitted, as data packets, to the central control device, following the synchronization pulse. The data line is embodied as a data bus. Each of the decentralized data processing devices is configured by the central control device before the first transmission of data packets to the central control device. In order to configure the system, a bi-directional communication is carried out between the central control device and the at least one decentralized data processing device.

Abstract: A control unit for a vehicle component such as a transmission ideally has a reduced production cost. The aim is achieved by transferring parts from a rigid circuit board to a flexible circuit board. The flexible circuit board is guided through a housing that accommodates the rigid circuit board and a portion of the flexible circuit board.

Abstract: The invention relates to an electronic device (1) that is to be incorporated into a motor vehicle. Said device (1) comprises a radio module (18) for establishing a short-distance wireless connection to an authorized cellular telephone (2) which is identified based on an identification key for the authorized cellular telephone (2) stored in a memory element (28) of the electronic device (1). In order to make it easier to retrieve the electronic device after the same has been stolen, the electronic device (1) further comprises means for detecting dismounting of the electronic device (1) from a motor vehicle as well as means for automatically establishing a short-distance wireless connection to another cellular telephone and automatically initializing a mobile wireless connection to said other cellular telephone when an identification key for the other cellular telephone is to be or is stored for the first time in the memory element (28) after restarting the electronic device once dismounting has been detected.

Abstract: A method for stimulating wheel electronics systems of single tires of at least one tire group in a motor vehicle. The wheel electronics systems are stimulated with a low frequency trigger signal, as follows: a trigger signal is emitted from an LF trigger to the wheel electronics systems of the relevant tire group at a variably adjustable first transmission field strength. Radio frequency signals are transmitted from those wheel-side wheel electronics systems, at which a sufficiently high transmission field strength of the trigger signal has arrived containing an item of trigger information, to a vehicle-side receiving unit. A determination is made of the number of RF signals received by the vehicle-side receiving unit, each containing one item of trigger information.

Abstract: A motherboard is shielded by way of a shielding metal sheet. A shielding metal sheet according to the invention is embodied such that the dimensions thereof in the longitudinal and transverse direction do not exceed the dimensions of the motherboard, thus advantageously allowing the shielding metal plate to be mounted directly on the motherboard. By directly mounting the shielding metal plate on the motherboard, the motherboard can also be transported or mounted on a main board as a unit along with the protecting shielding metal plate. The novel device is particularly suitable for decentralized parts production processes and finishing processes of entire shielded electronic systems requiring a lot of components, especially for applications in motor vehicles.

Abstract: An optical module includes a lens arrangement which is used to project electromagnetic radiation to a semiconductor element and a light source disposed in the surrounding area of the radiation inlet area of the lens arrangement. The lens arrangement and the light source are provided with a covering which is permeable to electromagnetic radiation. The covering is provided with a radiation barrier that blocks the radiation which is emitted by the light source and prevents a direct injection of radiation which is emitted by the light source into the lens arrangement.

Abstract: The present invention relates to a method and a device for assigning an electronic wheel unit, which is assigned to a wheel of a vehicle and is for ascertaining at least one characteristic parameter of the wheel, to a side of the vehicle. In this case, a direction of rotation of the wheel is determined by means of the wheel unit. The direction of rotation of the wheel which is determined by means of the wheel unit is compared with a direction of rotation of another wheel which is determined by means of another wheel unit assigned to the other wheel, wherein the wheel and the other wheel are arranged on different sides of the vehicle on a shared axle. Depending on the comparison of the determined directions of rotation of the wheel and of the other wheel, the wheel unit is assigned on the basis of a first procedure for assigning the wheel unit to the side of the vehicle or on the basis of a second procedure for assigning the wheel unit to the side of the vehicle.

Abstract: To minimise the power consumption when registering an electronic ticket, a bidirectional communication in a higher frequency band is initiated when the electronic ticket has received a wake-up signal in a lower frequency band via a highly sensitive receive module. During entry stamping, a wake-up telegram containing an identity of the detection space is transferred to and stored in the electronic ticket. The wake-up telegram is received in the lower frequency band by another receive module in the electronic ticket.

Abstract: A method and a system for registering tickets includes defining a waking zone with a transceiver unit having a transmitting unit, defining a registration zone with a registration transceiver unit, providing tickets having a processor, a memory, a ticket receiver, and a ticket transceiver for communicating between the waking zone and the tickets, transmitting a first information unit from the transmitting unit to the ticket receiver of a ticket located in the waking zone, activating the ticket transceiver of the ticket located in the waking zone with an item of information contained in the first information unit, at a beginning of ticket registration, setting up a bi-directional communication between the registration transceiver unit and a ticket transceiver of a ticket located in the registration zone through additional information units, and registering ticket presence to establish a service to be used or a defined presence.

Abstract: Method for processing transmitter and program related data in an FM RDS receiver and receiver executing the method, providing a band scanning search for detecting FM RDS transmitters exceeding a predetermined reception quality level. To enhance efficiency in data processing and use of storage capacity, transmitter related data including tuning data is stored separately from program related RDS data. Per each detected transmitter a quality factor indicating the quality in reception quality thereof is being allocated to each detected RDS transmitter and stored in a first memory bank, along with the relevant tuning data.