Continental Automotive Gmbh

Siemens Aktiengesellschaft

Wolfgang Köllner

Roman Morawek

Peter Stephan Mulacz

Ludwik Waskiewicz

Andreas Egger

Stefan Holzinger

Stefan Holzmann

Martin Meissl

Alexandre Pozzer

Roman Moraweg

Caroline Renault

Leandro Crocomo

Rudolf Liberda

In a method and a device for identifying a reversing operation in an electric actuating unit of a vehicle, once a trapped object is detected, the rotational direction of the electromotive drive is commutated. Sequential pulse interval counter values, derived from a sensor system or data derived from the values is or are written to a ring buffer store and compared with pre-defined reference data patterns. If a match is found, the counter reading of the position counter is corrected in accordance with the pre-defined reference data pattern. This ensures that the counter reading of the position counter is correct even after a reversing operation.

Method and device for identifying a reversing operation in an electric actuating unit of a vehicle

A device () for the detection of quadrature signals of a signal unit () has a common power supply line (VBATT_A & B) and a common ground wire (GND), and emits at least two out-of-phase square wave signals (IA, IB; IS, ID) during operation for analyzing the same in an analysis unit (), wherein both out-of-phase square wave signals (IA, IB; IS, ID) are applied to the common power supply line (VBATT_A & B) at different amplitudes, wherein the two out-of-phase square wave signals (IA, IB; IS, ID) are modulated onto the supply current (I)), and wherein the analysis unit () is or can be connected to the power supply line.

Device for the detection quadrature signals

In a method and a device for increasing the precision of the position determination of a motor-driven closure element of a vehicle, the data corresponding to a force-displacement reference curve and the data corresponding to a force-displacement actual value curve are used, a correlation function is calculated, the maximum thereof is found, and the counter status of a position counter is corrected by using the position offset associated with the determined maximum.

Method and device for increasing the precision of the position determination of a motor-driven closure element of a vehicle

To transmit data between an electric control unit () that has at least one operator element connection () and a diagnostic unit (), the diagnostic unit () is designed to be connected to the operator element connection () and the control unit () is designed to switch over () from an operating signal receiving status into a data transmission mode in order to deliver data via the operator element connection.

Data transmission assembly

In order to determine a drive force (FAct) produced by an electric motor, the motor current (Ia) supplied to the electric motor () from a power supply source () is measured and a force is calculated from this; in addition, the motor voltage (UBat) applied to the electric motor () is measured, and drive force fluctuations which result from voltage fluctuations that occur during operation of the power supply source are compensated for, with at least one compensation force component being determined which is based on the measured motor voltage (UBat), including voltage fluctuations.

Method and device for determining a drive force produced by an electric motor

Method for determining the angular position of the rotor of a mechanically commutated DC servo motor (), which is arranged in the transverse branch of a bridge circuit, and the armature current of which is preset by an electromechanically activated switching device (), &#x2014;with a control and analysis unit () which analyzes the current ripple () present in the armature current () and attributable to the mechanical commutation, characterized in that&#x2014;from each switch contact () of the switching device (), a contact-voltage feedback signal () is fed back to the control and analysis device () by means of a feedback circuit (), and in that the control and analysis unit (), by using the at least one contact-voltage feedback signal (), determines a contact vibration time interval () and performs an estimate of current ripple () during this contact vibration time interval (), during which an analysis of the current ripple due to contact vibrations which are caused by a switching process of at least one of the switch contacts () is not possible.

Method for determining the angular position of the rotor of a mechanically commutated d.c. servo motor

In a method for transmitting data between a master control unit and a slave control unit, the master control unit () outputs a pulse width-modulated signal () at an output terminal (HI_LO_BUS) in order to transmit the same to the slave control unit () via a bus (). The method includes the steps: &#x2014;the slave control unit () generates an acknowledgement signal at periodic acknowledgement intervals (TQuitt); &#x2014;the slave control unit () influences the pulse width-modulated signal () transmitted on the bus () during the acknowledgement interval (TQuitt); &#x2014;the master control unit () detects the influenced pulse width-modulated signal (), the pulse width-modulated signal () output at the output signal terminal (HI_LO_BUS) being read back at an input signal terminal (Read_Back_Bus) of the master control unit ().

Method for the transmission of data using self-diagnostic pulse width modulation

A circuit arrangement for triggering and monitoring a load which is connected in the shunt arm of a bridge circuit, including a control circuit for triggering switch elements Sto Sof the bridge circuit and a self-diagnosis system for testing the load connections, wherein the self-diagnosis system consists of

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Vienna, Austria

Wolfgang Köllner