Robert Boschgmbh

Axel Wenzler

Siegbert Steinlechner

Klaus Marx

Mohamad Iyad Al Dibs

Franz Jost

Reiner Schnitzer

Fabian Henrici

Werner Schiemann

Ralf Noltemeyer

Oliver Krayl

Berthold Elbracht

Lutz Dorfmueller

Markus Brockmann

Marco Neuscheler

Tobias Lang

Thomas Klotzbuecher

Michael Horstbrink

Ricardo Erckert

Bernhard Opitz

Martin Freitag

Henrik Siegle

Jo Pletinckx

Dominik Geisler

David Heisenberg

Hongyu Wang

Jiawei Zhang

Christian Reger

Gunter Haas

A battery sensor data transmission unit is described as including a data transmission unit, which is designed to output a sensor signal, which represents a physical variable in or at the battery cell to an evaluation device, using a battery housing wall and/or a wall of a battery cell as the transmission medium.

Battery sensor data transmission unit and a method for transmitting battery sensor data

A battery sensor data transmission unit is described as including a connection state ascertainment unit for ascertaining a series connection state in which a battery cell is connected in series to one other battery cell with the aid of a power transmission line and/or for determining a bypassing state in which at least one pole of the battery cell is decoupled from at least one other battery cell. Furthermore, the battery sensor data transmission unit includes a data transmission unit designed for outputting a sensor signal, which represents a physical variable in or at the battery cell, in the series connection state to an evaluation device using the power transmission line and/or outputting the sensor signal in the bypassing state to the evaluation device using a battery housing wall as the transmission medium.

A control circuit for a microelectromechanical element includes: a waveform generator, which is designed to generate a digital trigger signal for the microelectromechanical element, a modulator, which is designed to oversample the digital trigger signal, to subject the signal to a noise shaping, and to output the oversampled and noise-shaped digital trigger signal; and a digital driver device, which is designed to drive the microelectromechanical element using the oversampled and noise-shaped digital trigger signal.

Digital control for a microelectromechanical element

A method for determining the charge state of a battery in a motor vehicle includes steps of applying a measuring voltage to a coil, cyclically reversing the polarity of the measuring voltage if the absolute value of the secondary current flowing through the coil exceeds a predetermined threshold value, scanning the secondary current, reconstructing the curve of the secondary current based on the scanned secondary current values, and determining the charge state based on the curve of the secondary current values.

Method and device for determining a charge state of a battery with the aid of a fluxgate sensor

A controller for actuating a micromechanical actuator, including a first signal input which is designed to receive a reference signal, a second signal input which is designed to receive a measuring signal which denotes a recorded response by the micromechanical actuator to a control signal, a first controller element which is designed to filter and/or to attenuate predefined frequency modes and/or predefined frequency components in the received reference signal and to output a filtered and/or attenuated reference signal, a second controller element which is designed to modify the received measuring signal in order to minimize the quality of the first mode of the received measuring signal and to output a modified measuring signal, a third controller element which is designed to minimize the deviation between the filtered and/or attenuated reference signal and the received measuring signal and to output a minimized reference signal, a fourth controller element which is designed to modify the bandwidth of the received measuring signal and to subtract it from the minimized reference signal, which makes up the control signal. Furthermore, a corresponding actuating system, a corresponding micro-mirror system and a corresponding method are described.

Controller for actuating a micromechanical actuator, actuating system for actuating a micromechanical actuator, micro-mirror system and method for actuating a micromechanical actuator

A micro-mirror system having a micro-mirror actuator, a sensor for detecting the position of the micro-mirror actuator, a light module having at least one light source and an associated control system via which a light intensity of the light source is controllable, and an evaluation and control unit which is designed to control the micro-mirror actuator as a function of an output signal of the sensor. The system provides that the evaluation and control unit includes a compensation routine in which an offset voltage of the output signal of the sensor is settable as a function of the light intensity of the light source to be expected at the point in time that the micro-mirror actuator is activated.

Micro-mirror system and associated control method

A circuit configuration for a node of a bus system includes a transceiver circuit and a control circuit connected to the transceiver circuit. The transceiver circuit has an idle mode, in which it has a reduced power consumption in comparison with at least one operating mode, and the transceiver circuit is supplied with power in the at least one operating mode via a power supply unit integrated into the transceiver circuit. The control circuit is connected to the power supply unit to supply the control circuit with power in the idle mode, and the circuit configuration has a controllable voltage regulator which is coupled to the transceiver circuit in such a way that the voltage regulator is deactivated in the idle mode to reduce the power consumption and activated in the operating mode to supply power to the transceiver circuit and the control circuit.

Circuit configuration having a transceiver circuit for a bus system and nodes for a bus system

In a method for ascertaining a rotational direction of a rotating body, one rotational direction and one rotational speed value which indicates the rotational frequency of the rotating body are ascertained in each of multiple measurements. The rotational speed values of the multiple measurements are compared to each other, and a rotational direction of the rotating body is ascertained from the measured rotational directions and the comparison of the rotational speed values.

Method for ascertaining a rotational direction of a rotating body, and wheel sensor module

A system for checking a program memory) of a processing unit includes a check module, and the processing unit is made up of an instruction counter connected to the check module. The check module has a register connected to a first changeover switch that sets the register content. In a system that allows for the instruction addresses of the entire program memory to be checked, the instruction counter contains an ancillary counter, which runs through the instruction address space of the program memory independently of the program code during normal operation and which is connected to the register.

System for checking a program memory of a processing unit

In a method for detecting a rolling motion of a wheel in a motor vehicle, a wheel acceleration variable characterizing a wheel acceleration is recorded using at least one sensor element, the wheel acceleration variable is scanned at various scanning points in time, and the presence of a rolling motion is detected with the aid of the scanned values. The wheel acceleration variable is scanned in a cycle, including at least three scanning points in time, of nonequidistant points in time.

System for detecting a wheel motion

A method and a device are described for determining the rotational direction and/or rotational speed of a rotatable body on the basis of a sine signal and cosine signal, which is assignable to the rotational direction and/or rotational speed of the rotatable body and are output by a sensor, having at least one of the following steps: recording a sine signal and cosine signal, which is assignable to the rotational direction and/or rotational speed, at a point in time; determining a phase value from the sine signal and cosine signal; recording sine signals and cosine signals, which is assignable to the rotational direction and/or rotational speed, at points in time; determining phase values from the corresponding sine signals and cosine signals; calculating phase differences from the phase values and the phase value; and determining the rotational direction and/or rotational speed from the phase differences on the basis of a Vernier method.

Method and device for the robust and efficient determination of the rotational direction and/or rotational speed of a wheel or a shaft

The invention relates to a method for unambiguously determining a physical parameter &#x3a6; using m phase-measured values &#x3b1;with 1&#x2266;i&#x2266;m, whereby the phase-measured values &#x3b1;have different, integer periodicity values nand an integer periodicity difference (a) with &#x394;n&#x3e;1 within an unambiguous range E of the physical parameter &#x3a6;. A value T with (b) and (c) is calculated based on the phase-measured values &#x3b1;and the periodicity values nthereof, and, within a reduced unambiguous range Ewith (d), a value V is allocated to the value T by allocation according to (e), wherein Tstands for a respective lower limit and Tfor a respective upper limit of T. The allocation intervals between the upper (T) and the lower limits (T) for T, as wells as the distances (f) correspond at least to the periodicity difference &#x394;n. In order to determine the physical parameter &#x3a6;, value V is added up with the phase-measured values &#x3b1;in a weighted manner. 

Highly fault-tolerant method for evaluating phase signals

An ultrasonic flow sensor, in particular for determining the flow velocity of a medium flowing through a pipeline, has at least one ultrasonic converter for transmitting and/or receiving ultrasonic signals, an oscillator, which is connected with the ultrasonic converter, and an evaluation unit, which determines a phase shift of the ultrasonic signal that was received, with respect to a reference signal. The evaluation unit includes a plurality of quadrature demodulators, which operate with different demodulation frequencies and each determine phase information about the ultrasonic signal that was received, and when a vernier unit is provided, which determines&#x2014;based on the individual pieces of phase information&#x2014;a phase angle or a quantity proportional thereto.

Ultrasonic flow sensor with quadrature demodulation

The present invention relates to a method and a circuit arrangement for evaluating phase signals for determining an angle or a path of a linearly or rotationally displaced component, whereby a number (N) of measured phase values (), produced by scanning at least one phase sensor arrangement on the linearly or rotatably displaced component by means of an assigned sensor, are evaluated. According to the invention, once the measured phase values (&#x3b1;) have been transformed with a matrix (), a quality level (R) is determined by producing a vector (T) followed by the result of a quantization operation () regarding the vector (). Once a transformation has been carried out with a further matrix (), a further vector () is produced from the difference () between the vector () and the result of the quantization operation (), coefficients (C) and (D) being applied to the components (x) of said other vector, and the quality level (R) is derived therefrom.

Method and circuit arrangement for determining a quality level of phase signals

A method for optical measuring data acquisition of a component that moves in a rotary or translatory manner, in particular for optical angle, torque, or distance measurement, includes generation of a first pair of periodic line patterns extending in the movement direction of the component and a second pair of periodic line patterns extending in the movement direction of the component, which each have m periods, in particular n+1 periods, over the movement range of the moving component determination of respective phases of the line patterns of the first pair and of the second pair, determination of the phase position of the first pair of line patterns on the basis of the phases and of the second pair of line patterns on the basis of the phases, and determination of the position of the component on the basis of the phase positions.

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Rottweil, Germany

Axel Wenzler