| Parameter | Specification |
|---|---|
| Sensor Type | Single-Axis Accelerometer |
| Technology | MEMS-based sensing |
| Measurement Range | ±2g, ±5g, ±10g (configurable) |
| Output Signal | Digital via PSI5 protocol |
| Communication Interface | Dual-wire PSI5 |
| Operating Voltage | 8–16 VDC |
| Operating Temperature | -40°C to +125°C |
| Storage Temperature | -40°C to +130°C |
| Supply Current | <10 mA |
| Data Transmission Speed | High-speed digital output |
| EMC Performance | Meets automotive-grade standards |
| On-Chip Features | Digital low-pass filter, self-diagnostic |
| Programming | OTP (One-Time Programmable) |
| Protection | Overvoltage, reverse polarity |
| Housing Material | PBT+30%GF (Polybutylene Terephthalate with Glass Fiber) |
| Mounting Method | Threaded or bracket-mounted |
| Dimensions | Compact design, optimized for suspension integration |
| Compliance | RoHS, REACH, ISO 7637-2, AEC-Q100 Grade 1 |
The Automotive Single-Axis Accelerometer is a critical sensor used in modern vehicle suspension systems and chassis dynamics control to monitor vertical acceleration of the vehicle body. Installed on the four-wheel suspension system or directly on the vehicle chassis, this sensor detects vibrations, bumps, and road surface irregularities by measuring linear acceleration along a single axis—typically the vertical (Z-axis). The detected acceleration data is converted into an electrical signal and transmitted via the PSI5 communication protocol to the vehicle’s electronic control unit (ECU), enabling real-time analysis of ride comfort, suspension performance, and vehicle handling characteristics.
Utilizing advanced MEMS (Micro-Electro-Mechanical Systems) technology, this accelerometer delivers high sensitivity, excellent long-term stability, and outstanding resistance to mechanical shock and vibration. It supports a wide measurement range—from ±2g to ±10g—making it suitable for both passenger vehicles and heavy-duty commercial applications. The dual-wire PSI5 interface ensures reliable, high-speed data transmission with minimal electromagnetic interference (EMI), while maintaining compatibility with existing automotive networks. With built-in digital low-pass filters on-chip, it effectively reduces noise from high-frequency oscillations, providing clean, stable
signals for precise control algorithms.
The sensor features robust electromagnetic compatibility (EMC) performance, meeting automotive-grade standards for immunity to electrical noise in complex vehicle environments. It includes overvoltage protection mechanisms to safeguard against transient voltage spikes during engine start-up or load changes. The compact, rugged design allows for easy integration into tight spaces within suspension arms, control arms, or body mounts, with options for custom mounting brackets and cable routing. Its automotive-grade construction ensures durability under extreme operating conditions, including temperature cycling (-40°C to +125°C), humidity exposure, and continuous vibration.
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