Continental Teves, Ag and Company Ohg

Itt Manufacturing Enterprises, Inc.

Alfred Teves Gmbh

Itt Automotive Europe Gmbh

Mario Engelmann

Wolfgang Fey

Michael Zydek

Peter Oehler

Olaf Zinke

Peter Lohberg

Klaus Rink

Micha Heinz

Tobias Beckmann

Heinz Loreck

Andreas Klein

Adrian Traskov

Frank Michel

Georg Fachinger

Andreas Kirschbaum

Axel Schmitz

Tibor Toth

Peter Schubert

Leonhard Link

Luc Van Dijk

Werner Fritsch

Michael Zydeck

Lothar Spornitz

Andreas Kirchbaum

Gunther Hölzl

An integrated circuit arrangement on a common chip or chip support, for safety critical applications, in particular for use in control and regulation units for a motor vehicle braking system, including at least one microprocessor system module, which has at least one core processor, provided with at least one ROM and at least one RAM, at least one power module for controlling external users and at least one monitoring module for monitoring at least parts and/or part systems of the circuit arrangement, the circuit arrangement including at least one temperature sensor for recording a chip temperature.

Integrated circuit arrangement for safety critical regulation systems

The present invention relates to a method for reducing deviations between the effective current and the measured current in a pulse-width-modulated current control, in particular for electronic brake control units of motor vehicles, wherein the measured current is determined at a certain predefined time within an actuation period and a compensation occurs by means of temperature-responsive and/or supply-voltage-responsive compensation variables which are added to the measured current such that a corrected nominal current is available for current control. The invention also relates to a circuit arrangement for actuating several inductive loads and comprises a circuit for PWM control of the load current. The method of the invention is implemented as a program in a microcomputer or microcomputer system that is electrically connected to the PWM circuit.

Method and circuit system for calibrating voltage and temperature deviations of the effective current of hydraulic valves in a PWM drive

The present invention relates to a circuit arrangement for the error-free analog-to-digital conversion of N analog input signals Nin a plurality of digital output signals corresponding to the number N using exactly one analog-to-digital converter, wherein N&#x3e;=1, wherein further N' other redundancy inputs N&#x2032;are provided, and being fed to the said analog-to-digital converter, wherein the N and the N&#x2032; inputs are supplied to at least one analog multiplexer, and wherein the circuit arrangement has an error monitoring functionality, and each input signal Nis counter to the corresponding redundancy signal N&#x2032;. The invention also relates to the use of the circuit arrangement in electronic motor vehicle control units with an anti-lock function.

Electronic circuit arrangement for error-free analog/digital conversion of signals

The present invention relates to a system for reliably transmitting the position of a control element to an electronic processing unit by way of electric signal lines, wherein the position signal is transmitted by way of several signal channels, and use thereof in a motor vehicle brake system. The present invention further describes a position transmitter for transmitting position signals with a magnetic encoder which is displaceable by a control element in relation to a magnetic transformer, wherein the magnetic transformer(s) along with an integrated electronic signal-conditioning circuit are arranged in an electronic sensor subassembly, as well as a receiving device for receiving a position signal comprising several processing channels for processing the position signals of the position transmitter.

System for transmitting the position of a control element

The present invention relates to a circuit arrangement for controlling the current in loads by modulation of the pulse width, comprising at least two driver stages () provided for the actuation of the loads, and one or more current measuring devices (), and at least one multiplexer () conducting current measurement signals by way of the load current in the driver stages to one or more current measuring devices in dependence on one or more control signals () for the multiplexer, said control signals being produced by a checking device (). The invention further describes a method wherein the moment of the current measurements is controlled by an organized chronological order.

Circuit arrangement and method for measuring current in vehicle braking systems

A circuit for detecting a defect of electronic components in an electronic control unit includes an output for driving a load (). A redundant measurement of the current (I) is executed at the contacts (G, S, D), in particular at the driven contacts (S, D), of one or more semiconductor circuit elements, and an error function of a semiconductor circuit element is detected when the comparison of two current values (I, I, I) by way of the current flowing through a load (') indicates an unequal current distribution. This circuit is of use in electronic brake force or driving dynamics controllers for motor vehicles.

Method and circuit for detecting a fault of semiconductor circuit elements and use thereof in electronic regulators of braking force and of dynamics movement of vehicles

The present invention relates to an electro-hydraulic brake system for motor vehicles which is controllable in a 'brake-by-wire' operating mode by the vehicle operator as well as independently of the vehicle operator, and which can be operated in a back-up operational mode where only operation by the vehicle operator is possible. The brake system includes an emergency pressure generator or master brake cylinder which has at least one pressure chamber and is operable by way of a brake pedal, and a hydraulic auxiliary pressure source whose pressure is used to act upon wheel brakes that are connectable to the master brake cylinder by way of at least one hydraulic connection closable by a separating valve, as well as an electronic control and regulating unit. In order to achieve a very rapid change-over of the separating valves into the closing position, the present invention arranges for an additional electric circuit that actuates the separating valve independently of the electronic control and regulating unit as the driver's deceleration demand occurs.

Electrohydraulic brake system for motor vehicles

The present invention relates to a method and a circuit arrangement for processing signals for an active motion sensor which generates at least one first sequence of input pulses that contain motion information. By at least one integrating filter circuit, each input pulse of a pulse train is integrated, and an associated output pulse is generated during a period in which the integrated signal is in excess of a predeterminable second threshold value after a predeterminable first threshold value has been exceeded so that the output pulse has a time delay with respect to the input pulse. As a result, noises of a duration which is shorter than the delay time are effectively suppressed.

Method and circuit for processing signals for a motion sensor

The present invention relates to a method and apparatus for reducing voltage sags in the battery supply lines of the circuit arrangement which is used to regulate or control the current input of a consumer in an automotive vehicle, wherein the consumer current is regulated or controlled by pulse-width modulation (PWM) and a controllable switch is used. To this end, a circuit is used which influences the edges of a pulse-width modulated signal, and a signal representative of the rate of change in the current in the battery supply lines to the consumer is produced. This signal is fed back to the input signal by way of a capacitor.

Circuit arrangement for reducing voltage draw down in battery supply lines

A circuit configuration for actuating active- and/or passive-operated warning signal generators or warning lamps (WL,, WL,) comprises an integrated circuit (IC,) having individual actuating steps (,) and connections for the individual warning signal generators. Moreover, an adapter connection (WLCON) is provided which upon connection to chassis configures the circuit (IC,) for the actuation of two passive warning lamps (Wlp) or other warning signal generators, permitting upon connection to an ohmic resistance (R) leading to chassis, actuation of an active (Wla) and a passive (Wlp) warning signal generator and configuring&mdash;if left open&mdash;the circuit (IC,) for actuating two active warning signal generators (Wla).

Circuit arrangement for activating warning signal generators

The present invention relates to a circuit arrangement to monitor a regulated output voltage in an automotive vehicle, wherein the regulated output voltage is monitored as to whether defined threshold values have been exceeded and/or have fallen short of, wherein the circuit element for regulating the output voltage and the circuit element to monitor whether threshold values have been exceeded or have fallen short of are integrated in one chip, wherein the adjustment of the output voltage is effected by way of a first reference voltage, and wherein monitoring of the threshold values as to whether they have been exceeded or have fallen short of is conducted by way of a second reference voltage.

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Steinbach/Ts., Germany

Mario Engelmann