Rework after the holidays, let Infineon give you a "any EE door"

The amount of data in traditional automotive networks is not high, and CAN and LIN communications are usually the main communication methods. In order to cooperate with autonomous driving, the new EE architecture of intelligent networking needs to transmit and process a large number of internal and external signals, and has higher requirements for bandwidth and latency. Gigabit Ethernet is often used as the backbone network, while 100M Ethernet and traditional CAN/LIN networks are also equipped. Therefore, 100M Gigabit Ethernet and CAN/LIN interfaces are becoming standardized interfaces for intelligent hardware. At the same time, data and signals are routed between different networks. To ensure real-time and reliability, the hardware itself is often required to support network routing acceleration to improve communication performance and quality, while reducing the software's use of resources.

In addition, with the widespread application of high-computing-power xPU and related peripheral devices in autonomous driving and smart cockpit controllers, more abundant interfaces are also needed for connection, such as PCIe, xSPI, eMMC, etc.

In the functional domain architecture, usually the power, chassis and autonomous driving domains have higher functional safety level requirements and need to reach ASIL-D, while the body and entertainment domains only reach ASIL-B. In the hybrid domain control architecture, the regional controller will gradually integrate other functions outside the body, such as power, chassis and other control signals. Therefore, the main control chip is required to support ASIL-D to meet system-level design requirements. At the same time, the regional controller also integrates power supply and distribution functions to provide a reliable power supply system for the entire vehicle, which is an important link in realizing high-level autonomous driving applications.

Ensuring the information security of electronic and electrical architecture requires planning and deployment at the entire system level, with software and hardware cooperating with each other. From a hardware perspective, it must have an independent security engine that supports key storage management, information encryption and decryption with multiple algorithms, secure routing and other functions to protect autonomous driving and intelligent network connections.

With the advancement of electrification, the utilization rate of high-power and high-computing chips has increased, and the power demand of vehicle loads has also been increasing. How to meet functional requirements while minimizing power consumption requires not only system design optimization, but also attention to power consumption indicators in different modes when selecting components.

Remote software upgrade is an essential function for smart cars. It breaks the traditional customer relationship model of cars that ends with the sale, and extends the interaction with customers throughout the entire life cycle, constantly giving products new life and creating added value. Since software upgrades may have the risk of errors, the system needs to have a program rollback function. In order to reduce the resources occupied by software, the new generation of hardware is usually required to support code partition exchange.

In the system planning stage of platform design, it is necessary to consider covering different models of high, medium and low-end vehicles as much as possible, and at the same time, consider whether the system is compatible when it is replaced and whether it is easy to transplant and reuse. Therefore, when designing hardware, family series products with rich configurations and continuous roadmap planning should be selected as much as possible to minimize the development cycle and cost.