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FXB-Z04005 BYD Self-driving Vehicle
About Feature Technical Parameter Basic Configuration
It adopts BYD Dolphin passenger vehicle for development. Through the vehicle wire-controlled system communication protocol, and the self-developed vehicle control VCU to obtain the highest control authority of vehicle to realize wire control of the lighting system, steering system, braking system and drive system. Through the data collected from the LIDAR, vehicle-mounted cameras, millimeter wave radar, ultrasonic radar and inertial navigation system, and communicate with the vehicle by converting the sensing, decision making, planning and control algorithms into CAN protocol data, to realize self-driving in specific road conditions.

1. It adopts BYD Dolphin for research and development, it has the functions of manual driving, L2-level assisted driving, L3-level self-driving, OTA intelligent remote upgrade, etc. The L3-level self-driving mode can be switched with one button.

2. The vehicle is equipped with 32-bit LIDAR, front view camera, high-precision GPS combination navigation, millimeter wave radar, ultrasonic radar, self-driving computing platform and other core components of the self-driving system, which can perform functions such as high precision map creation, high precision positioning, driveable area detection, lane marking line detection, obstacle detection, dynamic object tracking and obstacle classification recognition. The longest detection distance of LIDAR is up to 150 meters. The self-driving system has built-in algorithms for secondary development to meet the needs of self-driving research and training projects.

3. The vehicle self-driving system is developed based on Autoware open source self-driving system, the instructions are compiled in c++ and python language, with human-computer interaction interface operation for simple and convenient use.

4. Vehicle-mounted camera, real-time monitoring of lane lines, traffic lights, traffic signs and other information to achieve lane keeping driving, automatic lane change, traffic light automatic waiting and driving function.

5. The driving cab is equipped with high-definition display screen, which can display the imaging shadow and identification mechanism of LIDAR and camera in real time, so that students can understand the software internal algorithm logic more clearly.

6. The system can collect high-precision maps to realize the self-driving function of city-level scenes.

7. The OBU interface is reserved to extend the vehicle-road cooperation function and realize the networked communication connection between the vehicle and the outside world (that's V-X. including vehicle-vehicle, vehicle-road. vehicle-human, vehicle-cloud. etc.).

8. The vehicle level computing platform can provide up to 32 Tops computing capability to meet the computing needs of self-driving scenarios. Built-in multi-sensor clock synchronization function to reduce sensor fusion time difference and improve the data accuracy of self-driving.

Technical Parameters

1.Whole vehicle

2.Power battery

3.LIDAR

4.Millimeter wave radar

5.Surround view camera

6.Ultrasonic radar

7.Forward camera

8.Self-driving computing platform

9.GPS combined inertial navigation system

 

Technical Data

1. Whole vehicle

Overall dimension (mm): not less than

4125 x 1770 x 1570 (length x width x height)

Braking mode: front and rear disc brake

Structure: front wheel drive

Suspension: front MacPherson rear torsion beam type Track: 2700mm

Wheelbase : 2700 mm

Minimum turning radius: 5.25M

Drive motor type: AC permanent magnet synchronous motor

Drive motor power: 70KW

 

2. Power battery

Battery capacity: 44.9kwh

 

3. LIDAR

Number of lines: 32

Laser wavelength: 905nm

Laser safety level: Class1 human eye safety

Range capability: 150m (80m@10% NIST)

Accuracy (typical): ±3cm

Horizontal field of view: 360°

Vertical field of view: -16°-15°

Frame rate: 5Hz/10Hz/20Hz

Rotational speed: 300/600/1200rpm (5/10/20Hz)

Output points: ~640.000pts/s (single echo mode)~1280,000pts/s (dual-echo mode) 

Ethernet output: 100 Mbps

Output data protocol: UDP packets over Ethernet

Operating voltage: 12V-32V

Operating temperature:-20℃~+60

Product power: 12W

Storage temperature:-40°C~+85

Protection level: IP67

Time synchronization: SGPRMC with 1PPS

Size: φ102mm*H77.9 mm

Weight (without data cable): ~1040g

 

4. Millimeter wave radar

Transmit frequency: 76-77GHz

Transmit power (EIRP): 14.1dBm

Update rate: 20Hz

Power consumption: @12V DC 256.6~12W

Distance measurement range for obstacle: 0.2~100m

Distance accuracy: 0.42m

Measurement speed range: -16~16m/s

Speed resolution: 0.24 m/s

Number of targets tracked simultaneously: 8Pcs

Beamwidth/TX: Azimuth(-6dB)56deg Pitch(-6dB)37deg

Operating voltage: 8-32v

Protection grade: IP66

Storage temperature: -40~85

Operating temperature: -50~105

 

5. Surround view camera

Pixels: AR0147 RGGB ISP AP0101

Image size1/4 inch CMOS

Output pixel1280H*720V

Pixel size: 3um

Backside illumination: (BSI)

Frame rate: 1280*720@30fps HDR range 140 dB 120dB@LFM

Output data parallel/YUV422-8-bit serializer motto MAX96705

Camera interface coaxial power supply: 5~16V POC

Current: less than 200mA

Connector: Z-type Fakra

Operating temperature: -40~+85

Waterproof lens

Size(mm): 30 x 30 x 22.5

Weight: <50g

 

6. Ultrasonic radar

Working power supply: +12V~24V

Working current: less than 200mA (+12V supply)

Operating temperature range: -40~85

Ultrasonic stable measurement range: 200mm-3500mm,

limit range: 130mm-5000mm (the reflective surface is wall)

Accuracy: 0.5% of the detection distance

Resolution: 5mm

Communication interface: compatible of CAN2.0A CAN2.0B

Sampling rate and CAN send cycle: 100ms

Probe protection level: IP67

Probe launch angle: 60 degrees

 

7. Forward camera

Processor: FPGA, Dual-Core ARM

Memory: 1G

Flash memory: 8G

Lens focal length: 8mm (4mm can be customized)

Distance measurement range: 3m-100m (Can be customized)

Distance measurement error: within 5%

Baseline: 12cm (Can be customized)

Dynamic range: 120dB

Resolution: 1280*720

Field of view: HFOV38/VFOV21° (Can be customized)

Pitch angle: 70 ° ~ 90 °

Transmission: 1*Gigabit network port (transmitting image data), 1*CAN (transmitting lane lines and obstacle information)

Operating voltage: 9~36V

Overall power: <6W

Storage temperature: -30℃~85℃

Operating temperature: -20℃~70℃

Image frame rate: 12.5fps

 

8. Self-driving computing platform

AI computing power: 32TOPS

Graphics card: NVIDIA Ampere architecture with 1792

NVIDIA CUDA cores and 56 tensor cores

Maximum graphics card frequency: 930MHz

CPU: 8-core Arm Cortex-A78AE v8.2 64-bit CPU2MBL2+4MBL3

Maximum CPU frequency: 2.2GHz

Maximum frequency: 1.4GHz

Memory card: 32GB 256-bit LPDDR5204.8GB/s

Storage: 32GB eMMC5.1

Network interface: 4×Gigabit E hot network port

Camera interface: 2×GMSL2 four in one mini Fakra type

(10V, transmission distance up to 15 meters, GMSL2 and GMSL1 compatible)

Video output: 1×HD 2.0 (Type A)

Interrupter: 2×USB 3.0 (Type A)

Universal input/output port: 4×input (0-12V) 4×output (3.3V)

Interrupter: 5×capacitor (terminal resistance 120Ω)

Serial port: 1×debugging (RS232), 3 ×RS232, 2×RS485/RS422

Synchronous input/output port: 1×SYNC_IN (0-12V), 1×SYNC_OUT (3.3V),

1×SYNC_PPS (3.3V)

Expansion port: 1×M.2 M key (PCIe x4, 2280), 1×Mini PC

(for 4G or wireless expansion), 1×Nano SIM card socket

Key: Power button, Reset button, Restore button

Input voltage: wide input 9-36V DC

Typical consumption: up to 60W

 

9. GPS combined inertial navigation system

Performance index: Number of channels 432

Cold start: less than 30s

BDS: B1/B2

Number of signals GPS: L1/L2 GLONASS:G1/G2

GALILEO: E1/E5b

Initial time: less than 1 min

Update frequency: 100Hz

Differential data: RTCM 2.X/3.X

Reliability: >99.9%

Data format: NMEA-0183, Unicore

Accuracy index: Single point accuracy plane:13m, elevation:3.0m

RTK accuracy plane:1cm+1ppm, elevation:15cm+1ppm

DGPS plane: 0.4m,elevation:0.8m

Time accuracy: 20ns

Speed accuracy: 0.03m/s

Orientation accuracy: 0.2 degrees/1m baseline

Hardware system:

Communication serial port: 32-bit communication processor FLASH 512KB DDR2 256KB

Communication interface: GX16-8*1 support RS232

Radio interface: GX12-4*1 support RS232

Indicator lamp 3 4G interface SMA*1 GNSS interface TNC*2 SIM/UIM 1

Physical environment: Standard power supply 12V/550mA

Power supply range: 9~32V

Power consumption: 6.6W/550 mA typ. and 12W/1.0A @max.peak power

Dimension: 162x120x53 mm

Weight: 1.25kg

Protection level: IP67

Operating temperature: -40~+70°C

Storage temperature: -40~+85°C

Relative humidity: 95% (no condensation)

1 unit of 200TOPS arithmetic computing platform, 1 set of 32-line LIDAR, 1 unit of 77GHz millimeter wave radar, 1 unit of GPS combined navigation, 1 unit of front view camera, 4 units of surround view camera, 8 units of ultrasonic radar, 1 unit of whole vehicle controller, 1 unit of BYD Dolphin wire-controlled whole vehicle, 1 unit of VCU whole vehicle controller.