New Product | Murata launches high-precision six-axis inertial sensor for automobiles
Murata Manufacturing Co., Ltd. has developed a high-performance 6-axis inertial force sensor for automobiles, the " SCH1633 -D01 " , which can be used for vehicle position estimation, vehicle posture measurement, and headlight leveling . Murata has already started providing samples and plans to start mass production in the first half of 2025. In the future, Murata also plans to expand the product lineup of the next-generation 6-axis product SCH1000 series, including this product.
For detailed product information: Please click on the picture to jump to the official website
In recent years, the automotive industry has continuously introduced AD (autonomous driving)/ADAS (advanced driver assistance system) and other technologies to make driving safer and more comfortable, which also requires the use of GNSS for more accurate self-position estimation. GNSS ( Global Navigation Satellite System ) is a global positioning satellite system that accurately determines the position of an object on the earth by communicating with artificial satellites orbiting above the earth.
In order to achieve more advanced AD/ADAS, the time misalignment problem between the information of GNSS, inertial sensors, cameras/LiDAR/millimeter wave radar needs to be solved, so the inertial sensor also needs to have a time synchronization function. LiDAR ( Light Detection and Ranging ) is a system that detects obstacles around the vehicle by emitting lasers.
In addition, the headlamp leveling regulations formulated by UNECE ( United Nations Economic Commission for Europe ) ( i.e., the mandatory automatic leveling devices in Europe ) are scheduled to be implemented in 2027 ( information as of November 10, 2024 ), and automakers need to add high-precision sensors to vehicles to meet regulatory requirements, which will also increase manufacturing costs.
Therefore, the automotive industry urgently needs a high-precision sensor that can be used for multiple purposes such as AD/ADAS, vehicle posture measurement and headlight adjustment to optimize the overall cost of the vehicle.
Murata has developed the "SCH1633-D01" through the 3D MEMS and system design technology accumulated over the years, which is a high-precision 6-axis inertial sensor for automobiles with time synchronization function. Murata's electrostatic capacitive 3D MEMS (3D micro-electromechanical system) achieves excellent sensor accuracy, small unit size and low power consumption by making silicon materials into 3D structural models. The new product launched this time can provide the inertial signals required for self-position estimation after combining with GNSS, vehicle posture measurement, tilt detection of cameras/lidar/radar, etc. It can provide high-quality signals for these functions and help optimize the overall cost of the vehicle.
In addition, by combining this product with an algorithm, it will help comply with UNECE's headlamp leveling regulations. In road test experiments conducted in California, the United States, more than 90% of autonomous driving mileage was driven using Murata's existing 6DoF MEMS sensor SCHA600 series . The new product was developed based on customer feedback from these road test experiments. Murata's 6DoF series is used to simultaneously measure the six degrees of freedom (DoF) of an object's movement in 3D space .
Main Features
1. Industry-leading performance level
Gyroscope Allan variance (lowest point value) 0.5deg/h or less;
gyroscope angle random walk within 0.05 deg/√????????;
linearity 0.02dps (gyroscope) 0.06m/s^2 (acceleration) ※Full temperature range
2. Orthogonal error compensation of built-in gyroscope and accelerometer
Axis orthogonality error value 0.3deg or less ※Over the entire temperature range.
3. With time synchronization function
Supports multiple system-level time synchronization functions.
4. The smallest volume among Murata's current automotive-grade 6-axis products
12mm x 14mm x 3mm (length x width x height).
Murata's partner Hexagon has applied this product to their navigation and positioning products , and has improved efficiency, productivity, quality and safety in multiple fields through advanced sensors, software and autonomous technologies. Mr. Gordon Heidinger, Division Manager of the Autonomous Driving and Positioning Department of Hexagon's Automotive and Critical Safety Systems Division, said: "The SCH1633-D01 has demonstrated excellent performance as a MEMS sensor, and we are honored to integrate it into our products and bring it to market."
Main Specifications
|
Number of Pins |
24pin (SOIC package) |
|
Angular velocity measurement range |
±300 °/s, ±125 °/s, ±62.5 °/s |
|
Output |
SafeSPI2.0 (monitors up to 20 bits of sensor data, 200 or more internal signals) |
“ Automotive 6DoF applications are growing rapidly and competition among manufacturers to gain market share is fierce . This product provides the high performance required for new systems and helps to reduce costs to a great extent. For car manufacturers, this product provides both technical advantages and cost savings. It will help further advance automotive applications and realize autonomous driving, which is safer for all of us,” said Mr. Ville Nurmiainen, General Manager of Product Management at Murata Electronics Oy.
This new product is mainly used for inertial navigation, attitude control, camera, and headlights for AD/ADAS. In the future, Murata will continue to develop inertial sensors that meet market demand and help automotive sensors achieve miniaturization and high precision.
If you want to learn more about Murata Manufacturing's MEMS sensors in various automotive application scenarios and GNSS fusion solutions, please click on the image below to download: Murata Application Guide White Paper "Intelligent Driving Perception Devices" .
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