Driving the Future: Unveiling the Transformative Role of ADAS Chips in Enhancing Vehicle Safety and Autonomy
Advanced Driver Assistance Systems (ADAS) represent a groundbreaking technological leap in the world of electronic chips. These systems are designed to enhance vehicle safety and driving experiences by utilizing a sophisticated network of sensors and processors. ADAS chips play a pivotal role in enabling features like adaptive cruise control, lane-keeping assistance, collision avoidance, and automated parking. As vehicles become increasingly autonomous, ADAS chips are at the forefront of revolutionizing the automotive industry, making driving safer and more efficient.
NXP Semiconductors, the market share leader in automotive radar according to Yole Intelligence, has announced a new industry-first 28nm RFCMOS radar one-chip IC family for next-generation ADAS and autonomous driving systems.
The new SAF85xx one-chip family combines NXP’s high-performance radar sensing and processing technologies into a single device, offering tier ones and OEMs new flexibility in addressing short, medium and long-range radar applications to serve ever more challenging NCAP safety requirements. The introduction of the one-chip radar family has added to NXP’s leading radar portfolio, built on more than 15?years of technology leadership and designed to surround drivers in a cocoon of safety to reduce accidents.
DENSO Corporation, which works at the forefront of radar technology, has embraced NXP’s latest innovation as its lead customer. “This advanced radar sensing technology plays an essential part in accelerating the development of next-generation ADAS,” “We know DENSO will extend its leadership position in ADAS by leveraging NXP’s compact high-performance SAF85xx radar SoC,”?said Mr. Hiroshi Kondo, Head of Safety Systems Business Unit at DENSO Corporation.
恩智浦半导体 new family of automotive radar SoCs is comprised of high-performance radar transceivers integrated with multi-core radar processors which are built on NXP’s S32R radar compute platform. The SAF85xx offers twice the RF performance and accelerates radar signal processing by up to 40%, compared to NXP’s previous generation. The one-chip family enables 4D sensing for corner and front radar, serving critical safety ADAS applications, such as automated emergency braking, adaptive cruise control, blind-spot monitoring, cross-traffic alert and automated parking.
OEMs will benefit from the increased flexibility it offers in meeting the expanding NCAP safety requirements and the proliferation of radar sensors, which some analyst estimates project will range to up to five or more per car. When combined with power management and connectivity solutions from NXP, the system solution flexibly addresses a wide variety of today’s and tomorrow’s OEM needs. Developers can take advantage of the S32R family’s seamless performance scalability as well as its software and hardware design reuse benefits.
“Our new radar one-chip family enables the reliable long range detection of objects and separation of small objects next to larger ones, like a fast-moving motorcycle next to cars and trucks on a busy multi-lane highway,” “Its small form factor allows our customers to build radar sensor modules that are up to 30?percent smaller, enabling global suppliers of ADAS systems, like DENSO, to expand the potential of radar safety through this powerful new technology,”?said Torsten Lehmann, Executive Vice President, NXP Semiconductors. NXP’s 3rd Generation RFCMOS Radar Platform
NXP’s Radar Portfolio Already sampling to lead customers and targeting next-generation OEM platforms, NXP’s new SAF85xx radar family builds on top of NXP’s complete suite of radar sensor solutions that can surround vehicles in a 360-degree safety cocoon. The scalable suite of sensing solutions is tailored to cover car OEMs’ ever-diversifying use cases and architectures, from corner radar to high-resolution 4D imaging radar. The S32R platform offers a common architecture for software reuse and speedy development along with a highly performant hardware security engine, OTA update support, and compliance with the newest cybersecurity standards.
TDK starts full-scale production of SmartAutomotive IAM-20685, ASIL-B Inertial Measurement Unit to enhance automotive ADAS applications
The IAM-20685?supports a wide range of ADAS applications, including but not limited to automated parking, ADAS domain controller, and vision systems. “Thanks to its 6-axis integration and its ASIL-B compliancy at the component level, the IAM-20685?simplifies automotive ADAS systems development, helping overcome weaknesses of other technologies,” “The high level of performance and the smallest size in the market means the IAM-20685?is the best IMU to integrate in positioning, vision, and radar modules in order to enhance their performance when the satellites are not available, road vibrations are applied, and the tilt is unknown, respectively,”?said Alberto Marinoni, Sr Director, Product Marketing Automotive at InvenSense, a TDK Group company. Main Features and Benefits
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The E/E-architecture therefore requires reliable and intelligent solutions that protect sensitive loads from overcurrent events and ensure fast fault isolation towards the power distribution system. To address these needs, 英飞凌 AG introduces the new automotive smart high-side power switch portfolio PROFET? Load Guard 12V. The combination of an adjustable overcurrent limitation and the capacitive load switching (CLS) mode provides a flexible response to the diverse requirements of modern secondary power distribution and provides protection mechanisms for safety-critical ADAS integration.
The new PROFET Load Guard 12V dual- and single-channel devices offer a wide current limitation range between 0.3?and 8.7?A, depending on the R DS(ON). This feature allows the protection level to be set according to the system requirements without microcontroller involvement. It avoids peak currents that endanger loads and provides fast fault isolation to the power distribution side in the event of overload conditions due to failures in loads, e.g. in the sensor fusion box. Loads with high capacitive share, such as ADAS or display modules, can also be quickly switched on using the devices’ capacitive load switching (CLS) mode.
The CLS mode allows to charge several millifarads while remaining within the safe operating area (SOA) of the smart high-side power switches, increasing the overall system robustness. Furthermore, providing a Safety-Application-Note, the PRO SIL? ISO26262-ready devices simplify the use in functional-safety related applications. In addition, the best-in-class low current sense accuracy enables accurate module diagnostics and monitoring.
The PROFET Load Guard 12V family’s wide operating voltage range from 3?V (cranking: 2.7?V) to 28?V, combined with the adjustable overcurrent limitation and the CLS mode, provides maximum load flexibility. If load or system requirements change, such as variant handling, the analog overcurrent limit threshold can be easily adapted to the new conditions. This is accomplished by simply changing the resistor connected to the OCT pin. In addition to flexibility, this feature also allows for hardware-based wire protection for time-independent loads. The CLS mode further expands the load potential and responds to the increasing number of capacitive loads such as modules.
Rated at 2-3?A, the family consists of two 90?m? and two 50?m? devices, both available as single- and dual-channel automotive smart high-side power switches. The proven PG-TS-DSO-14?package provides high compatibility with other SMART7?devices such as the PROFET +2?12V. Loads with high capacitive share can be easily addressed via the integrated CLS mode, allowing large capacitors to be rapidly charged within the safe operating area (SOA) of the PROFET Load Guard 12V. The best-in-class high current sense accuracy tolerance (kILIS) in low current ranges enables highly accurate current sensing.
To support the design-in process of PROFET Load Guard 12V devices, the family is integrated into the PROFET Guard Tool, which is available in the Infineon Developer Center.
This tool supports the evaluation of the system protection capability of PROFET Load Guard 12V devices with a given wire and load profile. It also calculates the correct resistor value for the adjustable overcurrent limitation.
Murata's High-Current Choke Coils for Vehicle ADAS with Wideband Impedance Levels
AEC-Q200-qualified, this 1210-inch size (3.2×2.5mm) component is targeted at suppressing wideband common mode noise in modern automotive designs. It is of particular value when addressing the power supply line noise issues now occurring as advanced driver assistance system (ADAS) hardware connects with wide frequency band sensors and imaging equipment (such as radar, LiDAR, etc.). There are a multitude of opportunities for this coil to suppress noise in industrial and consumer devices too.
The DLW32PH122XK2?draws on Murata’s proprietary winding technology and the company’s in-depth understanding of materials science, as well as its ability to transition innovative design concepts into volume-manufactured products. At 100MHz, this component exhibits 1200? (typical) impedance levels, and it maintains 900? (typical) even when 1GHz frequencies are applied. Any competing chokes operating over such an extensive range of frequencies would be substantially bigger, making them impractical in space-constrained environments.
Murata DLW32PH122XK2?is 60VDC rated and supports currents up to 1.2A at 105°C. It is the world's first 1210-inch size high-frequency, high-current common mode choke coil for power supply lines to handle such currents and simultaneously have effective impedances at GHz frequencies. A low DC resistance, of 0.05? (typical), mitigates power losses and curbs unwanted heat generation.
Conclusion:
ADAS chips are at the forefront of revolutionizing the automotive industry by enhancing vehicle safety and enabling greater autonomy. These advanced driver assistance systems have transformed the way we drive, making our roads safer and our vehicles smarter. As technology continues to evolve, ADAS chips will play an increasingly pivotal role in shaping the future of transportation, ultimately working towards a world where accidents are minimized, and driving becomes a safer and more efficient experience for all.