Method and electronic circuit assembly for the redundant signal processing of a safety-relevant application, motor vehicle brake system, motor vehicle having said motor vehicle brake system, and use of such an electronic circuit assembly

Abstract

The invention relates to a method for the redundant signal processing of a safety-relevant application, in particular of a safety control unit of a motor vehicle, wherein at least two redundant signals are fed from at least one sensor (4) to an electronic circuit assembly (2) as input signals (6) for processing of the sensor information. At least one input signal (6) is converted into a different test signal (16). In the electronic circuit assembly (2), the one or more input signals (6) are fed to a first peripheral module (12) of a microcontroller (10), and the test signal (16) is fed to an additional peripheral module (18) of the microcontroller (10). The sensor information of the input signals (6) and of the test signals (16) are thus redundantly processed independently of each other in a respective peripheral module (12, 18) of the microcontroller (10). The invention further relates to an electronic circuit assembly (2) for performing such a method, a motor vehicle brake system, a motor vehicle having said brake system, and a use of such an electronic circuit assembly.

Description

technical field [0001] The invention relates to a method according to the preamble of claim 1 for redundant signal processing for safety-relevant applications, in particular a safety control unit of a motor vehicle, and a method according to the preamble of claim 2 An electronic circuit arrangement for implementing the method. Furthermore, the invention relates to a motor vehicle braking system and a motor vehicle having an electronic circuit arrangement of this type as well as the use of the circuit arrangement. Background technique [0002] Electronic motor vehicle controllers, such as ABS and / or EBS brake controllers, often have redundant signal processing systems in order to be suitable for modern safety-relevant applications. In this context, the demands placed on the components are constantly increasing. However, as the complexity of each component increases, so does the possibility that errors can occur. Due to the increased demands placed on components such as con...

AI Technical Summary

Problems solved by technology

Although one microcontroller is sufficient for generating the respective control signals, such a system requires two costly microcontrollers, thereby doubling the cost of the microcontroller for safety reasons

[0004] In order to exclude possible error sources of the microcontroller due to system manufacturing errors or system design errors, it is necessary to develop two independently programmed systems, which further increases the cost

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