| Parameter | Specification |
|---|---|
| Sensor Type | Steering Angle Sensor |
| Sensing Technology | Hall Effect |
| Output Signal | Digital (CAN Bus) |
| Interface | Standard CAN connector |
| Operating Voltage | 8–16 VDC |
| Operating Temperature | -40°C to +150°C |
| Storage Temperature | -40°C to +130°C |
| Supply Current | <25 mA |
| Measurement Range | Configurable (e.g., ±750°, ±900°) |
| Accuracy | ±0.5° full scale |
| Hysteresis | <0.3° |
| Communication Protocol | CAN 2.0A/B |
| Calibration | Online calibration supported |
| Firmware Update | Bootloader support |
| Diagnostic Support | Fault code reporting via signal analysis |
| Mounting Method | Direct mount on steering column or switch assembly |
| Material | High-temperature polymer housing |
| Compliance | RoHS, REACH, ISO 7637-2, AEC-Q100 Grade 1 |
The Steering Angle Sensor is a critical component in modern vehicle safety and driver assistance systems, designed to measure the angular position and rotational speed of the steering wheel. It is typically installed at the end of the steering column or integrated into the combination switch assembly, where it detects the driver’s steering input and transmits this data via CAN (Controller Area Network) bus to the Vehicle Control Unit (VCU), Electronic Stability Program (ESP), and Advanced Driver Assistance Systems (ADAS). This information enables precise control of vehicle dynamics—such as yaw rate correction, traction control, and automatic lane centering—enhancing both safety and driving comfort.
This sensor employs advanced Hall-effect sensing technology, which provides high linearity, low hysteresis, and excellent long-term stability. Unlike potentiometric sensors, its non-contact design eliminates mechanical wear and tear, resulting in longer lifespan and higher reliability under continuous use. The sensor supports absolute angle measurement, meaning it can determine the exact steering angle even after power cycles—without requiring recalibration. This feature is essential for applications such as parking assistance, automatic emergency braking, and autonomous driving, where consistent and accurate feedback is required at all times.
It features built-in anti-torque design that reduces torsional resistance during steering, minimizing noise and improving the smoothness of the steering feel. The sensor does not require battery connection after power-off; once powered on, it immediately outputs angle data without delay—ensuring rapid system response. Its compact, modular design allows easy installation without interfering with existing steering components, while its robust housing ensures durability in harsh under-hood environments.
The sensor supports multiple angle ranges—configurable for passenger cars, commercial vehicles, and heavy-duty trucks—making it versatile across different vehicle platforms. It also includes online calibration support, allowing factory tuning to match specific steering gear characteristics and application requirements. Bootloader functionality enables firmware updates over-the-air, reducing maintenance costs and extending product lifecycle. Signal diagnostics are supported, enabling early detection of faults such as open circuits, short circuits, or internal component degradation.
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