Hardware
31.05.2017
v1.7
Audi Autonomous Driving Cup 2017 - Hardware Description
15
1.4.3
HOA0902-11
–
Encoder
Figure 12: HOA0902-11
Transmissive Encoder Sensor
(2)
Figure 13: Encoder Wheel
Honeywell HOA0902-11
– Transmissive Encoder
Sensor
Operating voltage:
4.5V to 5.5V (Detector)
Operating voltage:
1.6V (Emitter)
Revers Leakage Current: 10uA (Emitter)
Supply Current:
12mA
Slot width:
3.2 mm
Resolution:
up to 0.457mm
Tach Pulse Width:
3…20 us
Encoder Wheel
The encoder wheel is a 3D printed BFFT in-house
development. It fits exactly onto the rear wheels and has
30 slots that result in 60 edges (rising and falling).
Figure 14: Output Timing Diagram HOA0902-11
(2)
Figure 15: Functional Block Diagram HOA0902
(2)