Continental Teves, Ag and Company Ohg

Reinhold Kascha

Georg Fachinger

A method, the use thereof and a computer program product for maintaining the operation of a safety-critical overall vehicle regulatory and/or control system in the event of the occurrence of errors, in which the overall system is divided into system components on the basis of the findings of an error source analysis, in which modes of operation are also defined for the individual system components, and also, in the event of the occurrence of errors in the overall system, the error sources including the signals are analyzed and those methods of operation which are affected by the errors or signals which have occurred are ascertained, wherein on the basis of the error source analysis, those modes of operation of the individual system components which are not affected by the errors are taken and those which ensure an optimum or prescribed response from the overall system are selected.

Method for ensuring or maintaining the function of a complex complete safety-critical system

A method for monitors the functions and increases the operational reliability of a complex safety-relevant control system. Examples of such control systems include motor vehicle control systems such as a brake system (ABS, TCS, ESP, EHB, EMB), a steering aid ('steering-by-wire'), etc. The method also detects and evaluates system errors. The method detects a system error and evaluates as a group error, brings about a complete system degradation or a partial system degradation corresponding to the group error, e.g. limitation of the system functions and the system availability, localizes the system error and the error source by tests, logical combining of the test results, plausibility considerations, etc. and gradually cancels the restrictions of the system functions and enhances the system availability in dependence on the result of the individual steps for bounding or localizing the system error and the error source.

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Altenstadt, Germany

Reinhold Kascha