One of the major functions of the AD/ADAS domain controller involve perception and planning. Perception function drives the requirement for very high performance (TOPS) while the subsequent path planning and actuation drives the need for ASIL D safety requirements (DMIPS). ADAS compute may not have ASIL D capabilities, but the ASIL D decision needs to be made in the domain controller. This is achieved by the use of a high-performance ASIL D processor called as safety processor, which acts as a redundant path evaluating the decision made by the ADAS compute.
With advancement of ADAS technology, the implemented level of automation driving becomes increasingly higher. However, a degraded mode to keep basic function of ADAS should be supported if any failure leads to complex ADAS application failure. In this situation, a safety processor is needed, which supports powerful function safety features to detect/handle failure and owns enough resource to support degrade/redundancy.
An important feature of ADAS application is that the time-sensitive data or secret data will be transferred between ECU, domain controller and CCU, which drives the requirement that the safety processor in ADAS domain to have excellent networking capabilities for data transactions. It should support processing and forwarding time-sensitive data via time-bounded communication technology, for example, Time-Sensitive-Networking. To protect secret data, accelerated security services based on hardware security engine will be required.
NXP S32G meets all the above-mentioned requirements of ADAS safety co-processor to:
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ADAS Example
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Reference Design
The NXP GoldBox 3 is a compact, highly optimized and integrated reference design engineered for vehicle computer, service-oriented gateway (SoG), domain control applications, high-performance processing, safety and security applications.
Reference Design
The S32G-VNP-RDB3 is a compact, highly optimized and integrated board engineered for vehicle computer, service-oriented gateways (SoG), domain control applications, high-performance processing, safety and security applications.
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