CTLRR-220 Pro 77GHz Long-Range Radar: Automotive-Grade Blind Spot & Collision Avoidance Sensor
The CTLRR-220 Pro is a high-performance 77GHz long-range millimeter-wave radar independently developed by Chengtai Technology. Adopting an integrated next-generation RFCMOS domestic SoC solution, this automotive radar sensor accurately measures the distance, speed, and angle of target vehicles up to 260 meters ahead, enabling L2+ level intelligent assisted driving functions including Forward Collision Warning (FCW), Automatic Emergency Braking (AEB), and Adaptive Cruise Control (ACC).
1. Advanced 77GHz Radar Technology
As a cutting-edge 77GHz long-range radar, the CTLRR-220 Pro utilizes a 4-transmit, 4-receive (4T4R) antenna array with FMCW modulation, delivering exceptional resolution and detection capability. Its 5.5th-generation high-resolution 4D radar architecture provides 16% higher distance definition and 16% higher angular resolution compared to its predecessor, making it an ideal blind spot detection radar for modern ADAS applications.
2. Key Features of This Automotive Radar Sensor
2.1 Ultra-Long Detection Range
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Maximum range: 260 meters for vehicles
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Distance accuracy: ±0.1m
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Distance resolution: 0.21m ~ 0.5m
These specifications make the CTLRR-220 Pro a true long-range radar sensor, providing ample reaction time for critical safety functions.
2.2 High-Precision Speed & Angle Measurement
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Speed range: -111m/s ~ +55.5m/s (bi-directional)
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Speed accuracy: ±0.03m/s
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Speed resolution: 0.08m/s
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Horizontal angle range: ±60°
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Horizontal angle accuracy: ±0.1°
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Horizontal angle resolution: 2.5°
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Vertical angle range: ±15°
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Vertical angle accuracy: ±0.2°
2.3 Comprehensive Blind Spot & Obstacle Detection
As a reliable blind spot radar sensor, the CTLRR-220 Pro supports:
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40 tracking targets simultaneously
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1024 point clouds per frame
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Detection of vehicles, pedestrians, guardrails, trees, bridges, and drivable areas
2.4 Integrated Warning Functions
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FCW – Forward Collision Warning
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AEB – Automatic Emergency Braking
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ACC – Adaptive Cruise Control
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Supports L2+ autonomous driving levels
2.5 Dual-Channel CAN-FD Interface
Supports dual-channel CAN-FD for high-speed data transmission, enabling seamless integration with existing vehicle ECUs and ADAS controllers. The product uses an 8-pin TYCO waterproof vehicle connector (Model: 1-1719393-1) for reliable automotive-grade connectivity.
3. Technical Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 76 ~ 77 GHz |
| EIRP | ≤ 35 dBm |
| Antenna Channels | 4T4R |
| Radar Mode | FMCW |
| Operating Voltage | 9 ~ 16V DC |
| Power Consumption | 2.5W |
| Dimensions | 59×59×18.7 mm |
| Weight | 75g |
| Waterproof Rating | IP6K7 & IP6K9K |
| Data Interface | CAN / CAN-FD (dual-channel) |
| Refresh Rate | 50ms |
| Data Model | Point Cloud / Track |
| Point Cloud Quantity | 1024 |
| Functional Safety | ASIL B |
4. Automotive-Grade Design & Compliance
The CTLRR-220 Pro is built to full automotive-grade standards:
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ISO26262 functional safety level ASIL-B
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IP6K7 & IP6K9K waterproof rating (high-pressure cleaning, underwater protection)
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AutoSAR software architecture support
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Automatic calibration, interference resistance, and occlusion detection
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GB/T 33577-2017 – Forward Collision Warning System performance requirements
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GB/T 39901-2021 – Passenger vehicle AEB performance requirements
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GB/T 38186-2019 – Commercial vehicle AEB performance requirements
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JT/T 883-2014 & JT/T 1242-2019 – Commercial vehicle AEB test procedures
5. Typical Application Scenarios
✅ Highway assisted driving – ACC and FCW for safe highway cruising
✅ Urban driving – AEB and blind spot detection for city traffic
✅ Commercial vehicles – meeting JT/T commercial vehicle AEB requirements
✅ ADAS sensor fusion – integrating with visual ADAS systems for enhanced perception
✅ Automotive OEM applications – used by leading automotive manufacturers including BYD and Geely
6. Why Choose the CTLRR-220 Pro?
| Feature | CTLRR-220 Pro Advantage |
|---|---|
| Technology | 5.5th-generation 4D radar with 16% higher resolution |
| Range | 260m – class-leading long-range detection |
| Targets | 40 tracking targets & 1024 point clouds |
| Compliance | ISO26262 ASIL-B, GB/T, JT/T standards |
| Integration | Dual CAN-FD, AutoSAR, visual fusion support |
| Cost | Highly cost-effective with domestic SoC solution |
| Reliability | IP6K9K, -40℃ ~ +85℃ operation |
7. Conclusion
The CTLRR-220 Pro 77GHz long-range radar is a premium automotive radar sensor that combines class-leading detection range, high-precision measurement, and comprehensive safety functions in a compact, automotive-grade package. Whether used as a blind spot detection radar, radar obstacle detection system, or core sensor for L2+ ADAS applications, this 77GHz millimeter-wave radar delivers performance that meets the most demanding automotive safety requirements.
For technical datasheets, sample testing, or volume pricing, please contact our sales team.
