Robert Boschgmbh

Klaus-Peter Mattern

Johannes Schmitt

Bernd Mueller

Werner Harter

Harald Tschentscher

Andreas-Juergen Rohatschek

Carsten Gebauer

Tobias Kirchner

Uwe Beutnagel-Buchner

Thomas Kuhn

Rolf Gawlik

Michael Hering

Pascal Kanter

Michael Frischke

Thomas Jaeger

Christian Lasarczyk

Werner Knee

Thorsten Schwarz

Mahtab Niknahad

Michael Smuda Von Trzebiatowski

Sergio Amaya

A method for operating a data processing unit of a driver assistance system, the unit including main and slave computers. The main computer ascertains surroundings data from a surroundings detection system by using a processing specification. The slave computer operates a communication interface of the data processing unit, using a communication instruction. The method includes initializing, a first testing, a carrying out, a second testing and a forwarding. In initializing, the main computer, in response to a signal, is initialized by performing an initialization instruction on the main computer. In the first testing, the slave computer, in response to the signal, is initialized by performing a self-test instruction on the slave computer. In the carrying out, the communication instruction is performed on the slave computer to send and/or receive data via the communication interface, when the slave computer is tested and while the main computer is initialized. In the second testing, the main computer is tested by performing a test instruction on the slave computer, when the main computer is initialized. In the forwarding, the surroundings data are forwarded via the communication interface by performing the communication instruction on the slave computer, when the main computer is tested.

Method for operating a data processing unit of a driver assistance system and data processing unit

A method for testing a memory and a control device having means for a memory test. A destination address of the memory is selected in the process, dependent addresses of the memory are determined from the destination address, and user data at the destination address and the dependent addresses are backed up. Furthermore, the destination address and the dependent addresses are described by test patterns, via which a signature is formed. The backed-up user data of the destination address and the dependent addresses are then restored. Finally, the determined signature is compared with the known setpoint value. In the event of a deviation between the signature and the setpoint value, suitable protective mechanisms are initiated.

Method for testing a memory device, as well as a control device having means for testing a memory

A method for checking a microprocessor for correct operation, the microprocessor having a plurality of gates, each having a plurality of transistors, in which during the intended running of a computer program on the microprocessor a self-test is cyclically executed, and as part of the self-test, gates in the microprocessor are checked for correct operation. In order to check the microprocessor for correct operation in such a way that the functional check is able to detect at an early stage such errors which occur only during the intended operation of the microprocessor, and to the extent possible not to make use of models of the open-loop or closed-loop control algorithms, at least those gates of the microprocessor whose state has an impact on the intended running of the computer program on the microprocessor are checked during one run of the self-test.

Method for verifying the calculator core of a microprocessor or a microcontroller

By allowing for the possibility that light-weight spare wheels or spare wheels are mounted, a demonstration of the possible ways for replacing the output signals of one or more defective wheel speed sensors is presented.

Method and device for adjusting the braking and/or driving effect on the wheels of a motor vehicle

A method and a device for adjusting the braking effect and/or driving effect at the wheels of a motor vehicle. For this purpose, a tire tolerance adjustment has at least two different operating modes. It is determined whether a mounted spare wheel or temporary spare wheel is present. One of the operating modes is selected as a function of the determined existence of a spare wheel.

Method and device for adjusting the braking and/or drive effects on wheel of motor vehicles

In a circuit arrangement for a brake system with anti-lock system and/or traction control with input circuits, output circuits, control circuits, monitoring circuits, comparator circuits and circuits for switching off the control in the event of a fault, a continuous monitoring of the control circuits and of the monitoring circuits is made possible. Both the control circuits and the monitoring circuits comprise watchdog circuits for processing a watchdog algorithm which tests the functioning of the control circuits and monitoring circuits and comparator circuits for comparing the results of the watchdog algorithms respectively processed in the watchdog circuits. The output circuits only enable the control if both the control signals output by the control circuits correspond to the corresponding signals of the monitoring circuits and the results of the watchdog algorithms respectively processed in the watchdog circuits correspond.

Circuit arrangement for a brake system with anti-lock system and/or

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Beilstein, Germany

Klaus-Peter Mattern