From closed to open, cars gradually merge

- From June 2016 [ Smart Car Journal ] "High-end Interview" section

Learn more about the technology trends and reference designs of the Smart Car Journal .

Multi-core heterogeneous SoC chip to build a complete vehicle ADAS

With the rapid development of automotive electronics technology, especially in recent years, ADAS and autonomous driving are becoming more and more popular. More and more manufacturers are beginning to get involved in the manufacture and production of automotive electronic chips, which directly determines the power, reliability and safety of modern automobiles. The comfort level, as well as the level of energy saving and environmental protection, also led to the explosive growth of automotive image sensors. A single type of Sensor has gradually failed to meet the requirements. The integration of sensors, that is, the cooperation of multiple sensors, has become an inevitable trend. It is expected that the annual growth rate of revenue of the automotive CMOS image sensor market will reach 28% in 2014-2018.

As a competitively competitive Ultrasonic-assisted parking CMOS image sensor product, ON Semiconductor is more likely to integrate different sensors to meet the higher demands of automotive electronics in ADAS and autonomous driving. Compared to other manufacturers with only ultrasound, radar sensors, or only image sensors, ON Semiconductor has unique advantages in sensor fusion, selling more than 100 million sensors/SOC to date, and continuing to innovate and invest in automotive image sensor technology and solutions. To this end, electronic enthusiasts interviewed Mr. Wu Zhimin, Director of Application Engineering, ON Semiconductor China.

From closed to open, cars gradually merge

Wu Zhimin, director of application engineering at ON Semiconductor China, said that in order to cope with the increasingly fierce competition in technology and products, ON Semiconductor did not meet the existing market share and product range, but responded to the development and changes of the situation, proactively attacked and expanded. Improve the automotive electronics product line, especially in various sensors and power devices, and strive to provide customers with one-stop products and services, including proprietary automotive solution engineering centers, design, system architecture and field application engineers.

At present, the electronic function rate of automobile is about 15%, and the cost accounts for about 20% of the cost of the whole vehicle. It has changed from a simple mechanical product to a complex mechatronic product. An important symbol of a car becoming a mechatronic product is The actuator is gradually driven by the motor. Wu Zhimin pointed out that in order to meet the requirements of consumers for power, comfort and convenience, and even energy saving and environmental protection, there are more and more motors for vehicles, and they are moving from DC brush to DC brushless. Automotive electronic semiconductor chips must be able to implement more complex functions, such as various ASSPs and SoC chips for applications, with the ability to actively monitor faults, work in harsher environments, and have higher reliability.

Wu Zhimin further pointed out that ON Semiconductor has accumulated long-term and rich experience and technology in research and development of automotive SoC chips, balancing the complexity, functionality, flexibility, versatility, product cost and price, and technology and technology of automotive SoC chips. Functional forward-looking and product lifecycle challenges, with particular emphasis on the development and production of a variety of application-oriented standard products such as ASSPs, such as matrix LED headlamp drive and control chips, parking aid signal processing chips, and distribution Door control chip and more.

As the number one supplier of automotive image sensors, ON Semiconductor continues to innovate and invest in next-generation automotive solutions, including breakthrough LED flashing technology, stacked wafer technology, global shutter, back-illumination, and support for automotive safety integrity ratings. Wait. Wu Zhimin said, for example, ON Semiconductor's 2 megapixel image sensor AR0231AT uses LFM technology to eliminate high-frequency LED flicker, meets the automotive safety integrity level B requirements, and has the ability to monitor embedded data and sensor faults. The security field is especially important.

It is not difficult to find that smart cars are a higher stage of car development. Its safety focus has been gradually determined from the safety of the physical components of traditional cars, such as steering wheel failure, brake failure, tire burst, etc., to the safety of the hardware of automotive electronic systems. Controls whether the software is secure, such as security issues relative to "virtual" components. Wu Zhimin said that with the development of the car to the intelligent, there are two points that are unprecedented.

The first point is that the car has added a lot of sensors. For example, ultrasonic sensors, CMOS image sensors, radar, infrared night vision, etc., the perception of the surrounding environment of the car has become more and more important, and has become increasingly dependent. First of all, we must ensure that all kinds of sensors can work reliably and safely in various environments, with fault tolerance and self-correction.

At the same time, from the system perspective, we should make full use of the fusion of various sensors to effectively identify and confirm the various information received, and not be deceived and misled by the information that is not allowed, bad or even malicious, in the car. Safety is the first priority;

The second point is that the car has evolved from a closed system to a development system. That is, it must be networked and must exchange information with the outside world. This will inevitably lead to an increase in the amount of information, and the security and accuracy of information exchange will become increasingly important. As a semiconductor manufacturer, it is necessary to provide a communication chip with high real-time performance, fast communication speed, and strong encryption algorithm, so as to ensure that the corresponding information and data are not easily stolen and leaked.

Wu Zhimin emphasized that autonomous driving is an inevitable trend in the development of automobiles. From the past passive safety to active safety, the related technologies such as vision and advanced driver assistance systems are booming. With the gradual rise of the Internet of Vehicles, the environmental awareness and communication networking capabilities of the vehicle terminal itself are crucial. ON Semiconductor will use its own technology and market advantages to continuously promote the innovation, development and integration of automotive image sensors, and develop more reliable Higher performance in-vehicle communication and networking chips protect the car.

A-WXJ-1A-1

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