DEVELOPMENT BACKGROUND

Currently, the electronic and electrical architecture of automobiles is becoming increasingly complex, and the safety requirements for automotive electronics are also rising. To meet the safety requirements of automobiles, functional safety is gaining more attention. When it comes to functional safety, the first thing that comes to mind is the functional safety standard ISO 26262. In particular, ISO 26262-5(2018) Clause 8 introduces two metrics: Single-point fault metric (single-point fault metric) and Latent-fault metric (latent fault metric). Depending on the required ASIL level, the single-point fault metric and latent fault metric must meet the corresponding levels.

For microcontrollers (MCU, referred to as MCU below), within the electronic and electrical system, they are designed and developed as SEooC (safety element out of context). To meet the aforementioned metric requirements, MCUs need to implement corresponding safety mechanisms. These safety mechanisms can be allocated to both hardware and software modules. The Safety Frame safety library for MCUs is the implementation of safety mechanisms allocated to software.

产品特点

Ø  Can be integrated as a complex driver into AUTOSAR .

Ø  Can be integrated into non-AUTOSAR software architectures.

Ø  Support multi-core testing and applications.

Ø  Safety Frame has internal program flow monitoring.

Ø  High security: Supports multi-core self-testing, and can achieve up to ASIL-D requirements when paired with ZC 's TLF35584Lib.

Ø  High scalability: Each module can be configured to meet the application requirements of different customers.

Configuration Tool

To meet the diverse project requirements of customers and enhance the scalability of the Safety Library, the TC377 Safety Library has implemented the configurability of each module and has developed a configuration tool for the Safety Library. Customers can complete the configuration of various modules of the Safety Library using the configuration tool according to different requirements. They can generate configuration code files, and integrate the generated configuration files into the project.

PROCESS DOCUMENTATION

The TC377 Safety Library is designed to assist customers in achieving functional safety requirements based on the AURIX TC377 platform. The Safety Library is highly scalable and can be configured and redeveloped according to different customer project requirements, ultimately meeting the customers' functional safety requirements.

The TC377Safety Library is used to implement the software safety mechanisms of the TC377, including the testing of internal MCU modules and the driving of hardware safety mechanisms.

The TC2XX Safety Library can be applied to controllers that require functional safety levels.

For example:

Ø  Battery Management System

Ø  Advanced Driver Assistance System Controller

Ø  Intelligent Gateway Controller

Ø  Intelligent Braking System

Ø  Electronic Stability Control

Ø  Electric Power Steering

Ø  Body Control Module

Ø  Engine Management System

Ø  Chassis Domain Control System Applications

By integrating the Safety Library into the control based on TC377, it is possible to meet the ISO 26262 ASIL-D level requirements.

CONFIGURATION ENVIRONMENT

Realized functional modules:

Meet the ESM in the TC377 Safety Manual:

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