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Microcontroller system and method for safety-critical motor vehicle systems and the use thereof

A technology of micro-controllers and motor vehicles, applied in response to error safety measures, instruments, generation of response errors, etc., can solve the problems of great cost pressure on all components, and achieve the goal of reducing manufacturing costs, reducing quantities, and reducing R&D costs Effect

Pending Publication Date: 2017-05-31
CONTINENTAL TEVES AG & CO OHG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Due to the high part counts in which integrated circuits are produced, there is an enormous cost pressure on the overall building blocks

Method used

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  • Microcontroller system and method for safety-critical motor vehicle systems and the use thereof

Examples

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Embodiment Construction

[0028] exist figure 1 In the description of the examples and embodiments only those components important for the understanding of the invention are discussed.

[0029] figure 1 An embodiment of a microcontroller system according to the invention is shown, which is implemented as a combination of a multi-core (multi-core) and multi-chip system on a single chip or silicon substrate. The microcontroller system here comprises subsystem A and subsystem B, which can each be implemented as a single-core or multi-core system and—except for coupling based on a common silicon substrate—physically separated and have a separate voltage source A11 , B11 and system clock supply means A12, B12. In order to improve functional safety, the two subsystems A and B implement, for example, a two-channel safety architecture with redundant cores 1A, 2A and 1B, 2B and memory buses A13-1, A13-2, B13-1, B13-2 , RAM memories A14-1, A14-2, B14-1, B14-2 and comparison units A15-1, A15-2, B15-1, B15-2. ...

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Abstract

The invention relates to a microcontroller system for safety-critical motor vehicle systems, comprising a plurality of subsystems (A, B) arranged on a common chip (1), at least one of said subsystems having more than one channel, and being characterized in that it is designed to carry out a plurality of operating modes. The subsystems (A, B), in a first operating mode, are operated independently of each other and communicate with each other via an on-chip interface (A27, B27). In a second operating mode, at least one of the subsystems (A, B) is operated by means of data transmission means (A25, B26, A26, B26) and using non-local resources (A13-1, B13-1,..., A18) of at least one further subsystem (A, B) and / or at least one of the subsystems (A, B) is operating and at least one further subsystem (A, B) is inactive. The invention further relates to a method for operating such a microcontroller system and to the use thereof.

Description

technical field [0001] The invention relates to a microcontroller system for a safety-critical motor vehicle system according to the preamble of claim 1 , for operating a safety-critical motor vehicle according to the preamble of claim 6 Systematic approach and its application. Background technique [0002] Highly available or accident-proof vehicle systems, such as those required for automated driving applications, place increased demands on the availability and freedom of interaction of the electronic components of the individual motor vehicle systems and, in this case, in particular on the corresponding microcontrollers, The microcontroller executes the basic software of the vehicle systems run by the microcontroller. Accordingly, the aim is to minimize the probability of accidents with these vehicle systems. An example of a vehicle system for high availability or accident prevention is the braking system of a motor vehicle. A failure of such a braking system represent...

Claims

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Application Information

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IPC IPC(8): G06F11/07
CPCG06F11/0796G06F11/2035G06F11/2038B60W50/0225B60W50/023
Inventor D·鲍迈斯特A·特雷斯科夫
Owner CONTINENTAL TEVES AG & CO OHG
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