At Audi's first global brand summit held in Barcelona, the new A8 flagship sedan was officially launched, marking the world's first L3-level autonomous driving production vehicle. This milestone signifies the moment when autonomous driving technology took control of the steering wheel from human hands for the first time. Although Audi mentioned that the new A8 can only achieve autonomous driving at speeds below 60 km/h, it has already captured the attention of car enthusiasts worldwide. While consumers celebrate this technological breakthrough, the new A8 also raises important questions about the reliability of autonomous systems—can people truly trust self-driving cars?
The core of autonomous driving or ADAS (Advanced Driver Assistance System) lies in the interaction between the vehicle and its environment. This is achieved through sensors collecting data, memory storing it, processors analyzing it, and feedback being generated—all within a short timeframe. Speed is essential, but more importantly, reliability must be guaranteed. Feng Yixin, Director of the Product Management Department at Fujitsu Electronic Components (Shanghai) Co., Ltd., highlighted this during a recent Automotive Digital Cockpit Summit Forum.
Fujitsu Semiconductor, a well-known high-performance memory manufacturer in the ICT industry, has expanded its FRAM (Ferroelectric Random Access Memory) products into markets such as three-meter devices, logistics, and medical equipment. In response to growing demand in the automotive sector, they introduced two automotive-grade FRAM models, MB85RS256TY and MB85RS128TY, in 2017. These were redesigned for improved reliability and extended operating temperature ranges, from -40°C to 125°C, and passed the AEC-Q100 standard certification.
One notable application is in TPMS (Tire Pressure Monitoring Systems), where Fujitsu’s FRAM has been adopted by Pirelli, one of the most prestigious tire manufacturers globally. Pirelli tires are known for their reliability and performance, and the integration of FRAM allows for low-power, high-speed, and durable data processing in TPMS systems. The tire is expected to be mass-produced by the end of 2018, becoming the first tire with FRAM inside.
With the rapid growth of the automotive electronics market, especially in China, where ADAS is set to expand significantly due to new safety regulations, FRAM is becoming increasingly relevant. According to Strategy Analytics, the China ADAS market is projected to grow from around 10 billion yuan in 2014 to nearly 80 billion yuan by 2020, with an average annual growth rate of 30%–40%.
In the context of new energy vehicles, which are also on the rise, FRAM plays a crucial role in Battery Management Systems (BMS). BMS requires real-time monitoring of battery parameters, and reliable non-volatile memory like FRAM ensures accurate and fast data recording. Leading companies such as BYD and Kole have already incorporated Fujitsu’s FRAM into their designs.
Compared to E2PROM, FRAM offers much higher write endurance and faster write speeds. For example, while E2PROM can handle around 1 million writes, FRAM can endure up to 10 trillion writes. This makes FRAM more cost-effective in the long run, especially for applications like BMS, where frequent data writing is necessary.
As China’s automotive industry continues to evolve, there are increasing opportunities for high-performance components like FRAM. Chinese companies are now capable of competing globally, and choosing reliable, high-quality components is key to success. Fujitsu aims to support this transformation and expects significant growth in the Asian market, particularly in China, in the coming years.
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