In the process of advancing the intelligence of autonomous vehicles, real-time, precise environmental perception and self-state monitoring are the cornerstones of safe driving. Qiu Shi Future has independently developed Spirit10E-RL IMU Module With its outstanding measurement performance, environmental adaptability, and stable reliability, it has become the critical “neural center” for autonomous vehicle positioning, navigation, and motion control, providing robust technical support for the stable operation of autonomous vehicles in complex environments.

High-Precision Attitude Measurement: the “Stabilizing Pillar” of Autonomous Vehicle Localization and Navigation

Autonomous vehicles must achieve precise localization by integrating real-time attitude data (heading, pitch, and roll) and motion state data (acceleration and angular velocity) with sensor inputs from LiDAR, cameras, and other sensors. The Spirit10E-RL is equipped with Three-axis digital gyroscope with Three-axis digital accelerometer , with industry-leading core performance specifications:

• Gyroscope : The measurement range covers ±4000 deg/s, enabling the capture of extreme angular velocity changes under demanding operating conditions such as high-speed steering and emergency evasive maneuvers in autonomous vehicles; 1.4 deg/h zero-bias instability with Angular random walk of 0.15 deg/sqrt(h) Ensure minimal attitude drift during long-duration operation to provide a stable reference for long-range navigation.
• Accelerometer : The ±16g measurement range is suitable for dynamic scenarios such as vehicle acceleration and deceleration, and bumps, in conjunction with Factory-calibrated sensitivity, zero offset, and inter-axis coupling correction (<±0.05° inter-axis coupling error), ensuring the accuracy of acceleration measurements and the independence of data from each axis, thereby preventing positioning errors caused by multi-axis interference.

Through High-frequency attitude output up to 1000 Hz The Spirit10E-RL provides real-time feedback on subtle changes in the vehicle’s attitude, delivering millisecond-level response data to the autonomous vehicle control system. This compensates for perception latency caused by occlusions and low-texture environments in vision-based or LiDAR-based systems, thereby ensuring continuous localization.

Adaptability to Extreme Environments: A “Reliable Backup” in Complex Road Conditions

Autonomous vehicles must operate reliably across a wide temperature range—from −40°C to +85°C, encompassing extreme cold winters and scorching summers—and withstand severe vibrations. The Spirit10E-RL has comprehensively enhanced its environmental robustness, from hardware to algorithms:

• Wide-Temperature and Vibration-Resistant Design : The operating temperature range covers -40°C to +85°C, and it supports The calibration temperature range is synchronized to cover this interval. , ensuring no drift during cold-start operation and no performance degradation during high-temperature operation; 2000g vibration resistance It can withstand impacts such as road bumps and engine vibrations during vehicle operation, thereby preventing sensor data distortion.
• High-Stability Power Supply and Filtering : Single-supply operation from 4.0 V to 6.0 V, compatible with automotive power systems, with built-in Configurable high- and low-pass digital filters The filtering parameters can be adjusted according to different road conditions (such as urban roads and off-road surfaces), effectively suppressing high-frequency noise and outputting “clean” raw data.

Intelligent Function Integration: The “Efficient Interface” for Autonomous Vehicle System Integration

To meet the intelligentization requirements of autonomous vehicles, the Spirit10E-RL has undergone extensive optimization in communication, self-diagnosis, and condition monitoring:

• Multi-Protocol and Flexible Communication : Support UART and CAN Protocols It can be directly connected to the autonomous vehicle’s onboard CAN bus or via UART to the computing platform, eliminating the need for additional interface modules and thereby reducing system integration complexity.
• Real-time Condition Monitoring and Fault Early Warning : Built-in Alarm function for condition monitoring with Single-command self-test It can perform real-time diagnostics of sensor hardware health—such as zero-drift anomalies and communication faults—and notify the system via a “dataready” signal, ensuring that anomalous data does not enter the decision-making pipeline and thereby enhancing the safety redundancy of autonomous vehicles.

Enabling Autonomous Vehicle Control: A Precise Closed Loop from “Perception” to “Execution”

The motion control of autonomous vehicles—such as path tracking and trajectory planning—requires dynamic adjustment of throttle, brakes, and steering based on real-time vehicle state data. The high-precision angular velocity and acceleration data provided by the Spirit10E-RL can be directly used for:

• Dynamic Stability Control : Calculates vehicle roll and pitch angles in real time based on angular velocity and acceleration, thereby preventing hazardous conditions such as rollover during high-speed cornering and nose-down pitching during emergency braking;
• Sensor Time Synchronization : The 1000 Hz high-frequency output and the data-ready signal can serve as a time reference for other sensors, such as LiDAR, thereby resolving the issue of time-stamp alignment across multiple sensors and enhancing the accuracy of fusion algorithms.

Summary: Spirit10E-RL—The “Key Piece” in the Mass Production and Deployment of Autonomous Vehicles

Leveraging its core strengths of “high precision, high reliability, and strong adaptability,” QiuShi Future’s Spirit10E-RL provides end-to-end technical support for autonomous vehicles across the entire system stack—from perception to control. This includes high-precision attitude measurement to ensure stable positioning and navigation; robust performance in extreme environments to handle complex road conditions; and advanced intelligent features that lower the barriers to system integration. Looking ahead, as autonomous-driving technology advances toward L4 and L5 levels, the Spirit10E-RL will set the benchmark for “automotive-grade IMUs,” accelerating the transition of autonomous driving from the laboratory to large-scale real-world deployment.

Seeking Truth for the Future Guided by the mission of “precise perception, empowering intelligence,” the Spirit10E-RL IMU module has successfully passed a wide range of industry-standard tests. It is now available to support technological development and offer sample trials for applications in autonomous vehicles, unmanned agricultural machinery, special-purpose vehicles, and other fields. We look forward to collaborating with our partners to co-create the future of intelligent mobility!