Currently, the electronic and electrical architecture in vehicles is becoming more complex, and the safety requirements for automotive electronics are increasingly stringent. To meet these safety requirements, functional safety in automobiles is gaining more and more attention. In recent years, the industry has referred to the ISO 26262 standard for functional safety; the Texas Instruments BQ756506 is fit for the selected applications and complies with the standards of such applications, and the SEooC (safety element out of context) is used for design and development in the electronic and electrical system.

Since the AFE offers voltage sampling, current sampling, and temperature detection for battery management systems at a specific ASIL level, according to Clause 8 of ISO 26262-5(2011), it discusses two metrics: the Single-point fault metric and the Latent-fault metric. Different ASIL levels require and fault failure analysis methods all require it to achieve the corresponding ASIL-x level for both the single-point fault metric and the latent fault metric.

Therefore, for customer application projects that require compliance with certain ASIL safety levels, ZC driver software product can also provide a software solution to meet functional safety requirements, implementing the safety mechanisms outlined in the BQ756506 safety manual.

Product Feature

AUTOSAR Architecture

Ø  It can be integrated as a complex driver into AUTOSAR

Ø  It can be integrated into non-AUTOSAR software architectures, with flexible adaptation

Ø  High extensibility: Modules can be configured to meet the application requirements of different customers

Process Documentation

ZC.MuNiu AFE series software is aimed at establishing a platform of Analog Front End (AFE) software products that are independently developed by ZC to satisfy customer requirements. This manual outlines the application solutions and software architecture based on the Texas Instruments BQ75650 series AFE, facilitating system and software engineers to rapidly integrate it into customer products, ensuring the fulfillment of functional requirements.

This product has implemented the software driver functions for the BQ756506 chip, which include:

Ø  UART communication protocol function;

Ø  Battery voltage sampling function;

Ø  Current sampling function;

Ø  Battery temperature sampling function;

Ø  PCB temperature sampling function;

Ø  Shunt temperature sampling function;

Ø  Mode switching function.

ZC.MuNiu AFE Series driver software product based on Texas Instruments BQ756506 can be applied in battery management systems that require various functional safety levels.

For example：

Ø  Hybrid electric (HEV)

Ø  Electric vehicles (EV)

Ø  Energy storage systems (ESS)

Ø  Uninterruptible power supply(UPS)

Ø  E-bikes

Ø  E-scooters

This product manual is written for experienced hardware, software, and functional safety engineers, designed according to ISO 26262, and allows the BQ756506 driver software product to be integrated into the customer's application (sub)system. ZC's software integration engineers can support and ensure that the BQ756506 driver software product is suitable for the application integration services selected by the customer and complies with the corresponding software development processes.

ZC.MuNiu AFE Series driver software product based on Texas Instruments BQ756506  is compatible with MCUs from multiple chip manufacturers. The currently adapted MCUs are as follows:

This product supports software configuration for the Infineon AURIX series of chips.

       Software modules include：

Click to download the product manual