Murata launched the ~SCH1633-D01, a high-precision 6-axis inertial sensor for automobiles

Murata Manufacturing Co., Ltd. (hereinafter referred to as "Murata") has developed the high-performance 6-axis inertial force sensor "SCH1633-D01" (hereinafter referred to as "this product") for automobiles. Mass production will begin in 2025. In the future, Murata plans to expand its lineup of next-generation 6-axis SCH1000 series, including this product.

In recent years, the automotive industry has been introducing AD (autonomous driving) and ADAS (advanced driver assistance systems) to make driving safer and more comfortable, and it is necessary to perform more accurate self-position estimation in conjunction with GNSS(1). In order to realize more advanced AD/ADAS, the time misalignment between GNSS, inertial sensors, cameras/lidars(2)/millimeter-wave radars, and inertial sensors also need to have time synchronization functions.

In addition, the headlamp leveling regulations set out by UNECE(3)(4) are scheduled to be implemented in 2027(5), and automakers will need to add high-precision sensors to their vehicles to meet regulatory requirements, which will also increase manufacturing costs. Therefore, a high-precision sensor that can be used for a variety of purposes, such as AD/ADAS, vehicle attitude measurement, and headlamp leveling, is needed to optimize the overall vehicle cost.

Murata has developed the SCH1633-D01, a high-precision 6-axis inertial sensor for automobiles with time synchronization based on the 3D MEMS and system design technology cultivated over many years. This product can provide inertial signals required for self-position estimation in conjunction with GNSS, vehicle attitude measurement, and tilt detection by cameras, lidars, and radars. This not only provides a high-quality signal for these functions, but also contributes to the overall cost optimization of the vehicle.

In addition, by combining this product with an algorithm, it will contribute to compliance with the UNECE headlamp leveling regulations. In the road test conducted in California, U.S., more than 90% of the driving range of autonomous driving was based on Murata's existing 6DoF MEMS sensors (SCHA600 series). This product was developed based on customer feedback during these drive tests.

In the future, Murata will continue to focus on developing inertial sensors that meet the needs of the market and contribute to the miniaturization and accuracy of automotive sensors.

Key Benefits:

Industry-leading levels of performance
Gyroscope Allen Variance (lowest point value) 0.5deg/h or less
The gyroscope angle randomly walks within 0.05 deg/√ □ □
Linearity 0.02dps (gyroscope) 0.06m/s^2 (acceleration) *Full temperature range

Quadrature error compensation with built-in gyroscope and accelerometer Axis orthogonality error 0.3deg or less *Full temperature range

With time synchronization function
Supports a variety of system-level time synchronization functions

It is the smallest of Murata's current automotive 6-axle products: 12 mm x 14 mm x 3 mm (L x W x H).

Main specifications:

Main uses:

Inertial navigation, attitude control, camera, and headlamp for AD/ADAS