Intelligent braking system
In 2021, the product was designated as an "Advanced Technical Product in the Key Fields of Jiangsu's Automobile Industry" and was included in the Catalogue of Major Innovative Technologies and Products of Key New Energy Vehicle (NEV) Enterprises in Jiangsu Province (2021)
The project was included in the 2021 Nanjing “Zijin Zhidian” Industry Chain Technology Tackling Projects
Redundant safety system
Three-level redundant architecture design (IBC main module + RBU redundant module + distributive EPB); functional safety could reach ASIL Level D to meet the requirements of high-level automatic driving; switching speed of master/redundant system ≤100ms
Efficient lightweight assembly
The mechanical transmission efficiency of a coaxial brushless motor direct drive transmission mechanism could attain ≥86%; design of integrated lightweight electromechanical and hydraulic coupling mechanism; high-precision linear solenoid valve
Agile and reliable electric control
Low power consumption: The system’s current under the sleep node is less than 200μA, allowing for ultra-long vehicle standby time; minimal latency: High-speed sensor signal processing, with a CPU frequency of 300M, contributes to faster signal transmission and data processing; high reliability: The system power-off protection circuit, segmented big capacitor pre-charging, and three-rail redundant power supply system are the best ways to ensure safety
Mainstream robust algorithm
Meet the requirements of the Autosar architecture, ASPICE specification, and functional safety development process; strategy for multi-core heterogeneous lockstep software tasks; motor processing technique with three-loop coordinated control and noise reduction; Solenoid valve flow matching and linear control technology
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Technical Parameters of Product
| Main parameters | |
| Technical indexes | Indexes |
| Weight (kg) | <5.8 |
| Dynamic build-up time (ms) | ≤140 |
| Fluid replacement performance (ms) | ≤200 |
| Max. pressure build-up capacity (bar) | ≥200 |
| Quick release time (s) | ≤0.3 |
| Steady-state regulation accuracy (bar) | <1 |
| Noise NVH (dB) | ≤68dB@ABS、≤50dB@ACC |
| Life (10,000 times) | ≥220 |
| Interface specification | |
| Interface name | Specification |
| Brake pedal ratio | ≥3.3 |
| Waterproof and dustproof | Meet IP6K9K |
| Hydraulic circuit type | Type “X” or “H” (optional) |
| Pedal connector | Pusher fork or pusher ball (optional) |
| Overall dimensions of IBC assembly | 176.5*188*161.5mm (excluding oil pot) |
| Firewall interface size | Threaded link 72*72mm or 80*60mm (adjustment based on model supported) |
| Brake pipe | Comply with ISO4038, M10*1.0, and M12*1.0 (adjustment based on model supported) |
| ECU connector | Comply with standard JA3724-HL-1 (adjustment based on model supported) |
Redundant intelligent steering
Mechatronics integration system design
Electric drive integration technology, high torque and power output, and system architectural redundancy design
Algorithms for complete kernel and advanced function control
Intelligent driving functions such as automatic parking/lane change assist/lane maintaining, and advanced functions such as off-tracking compensation/vibration suppression/friction compensation, etc.
Motor compensation algorithm for basic control such as assist control/yaw damping/active return, and torque fluctuation suppression Redundant permanent magnet synchronous motor drive and control and diagnosis, complex motor 6-phase current reconstruction technology, etc.
Motor compensation algorithm for basic control such as assist control/yaw damping/active return, and torque fluctuation suppression Redundant permanent magnet synchronous motor drive and control and diagnosis, complex motor 6-phase current reconstruction technology, etc.
Intelligent networking support design
Comply with information security needs, and support OTA upgrade technology and cloud deployment monitoring
Comply with function safety design
When assistance (sLOA) is unexpectedly lost, the electronic control system can fulfill ASIL D functional safety level
Double-pinion redundant intelligent steering system RISS-dp
Electric drive unit RPK-dp of pinion redundant intelligent steering system
Rack-type redundant intelligent steering system RISS-r
Electric drive unit RPK-r of the rack-type redundant intelligent steering system
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Technical Parameters of Product
| Content of technical characteristics | RISS-r | RISS-dp |
| Motor type | 6-phase permanent magnet synchronous motor | 6-phase permanent magnet synchronous motor |
| Phase current peak of electric control system (A) | 200 | 160 |
| Max. rack force (kN) | 16.5 | 12.5 |
| Sensor Type | TAS 4+2 | TAS 4+2 |
| RPK dustproof and waterproof | IP6K9K | IP6K9K |
| sLOA failure rate | < FIT10 | |
| Fault tolerance time（ms） | <25 | <25 |
| Active alignment residual angle (°) | <1.5 | <1.5 |
| Torque fluctuation（Nm） | <0.2 | <0.2 |
| Single-point time-dependent diagnostic coverage | ＞99 | ＞99 |
| Execution angle error（°） | Min（5%*Angle req，1.5） | Min（5%*Angle req，1.5） |
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