Bosch DDU 10 Manual page 39

6.2.6 Configuring a frequency input
Bosch Motorsport
– DDU 10 filters have constant, frequency independent delay
– Delay (e.g. 22 samples at 10 ms) is corrected during recording
– No delay filtered vs. unfiltered in recorded data
– Correction is (of course) not possible for real time data (display, online, PWM out)
– Use filtered data for recording, use unfiltered data for real-time
Example: measurement of wheel speed
– Pulse wheel attached to wheel
– Each passing tooth of pulse wheel triggers hall sensor
– Calculation of wheel speed with wheel circumference
1. Click on 'Measurement Sources' in the Toolbox.
2. To expand the list of 'I/O Channels', click on the '+' in the DDU 10 Project Tree.
3. Drag the 'Velocity' digital signal source from the Toolbox and drop it on the desired
'REV' input channel in the DDU 10 Project Tree.
Drag + Drop
The 'Velocity Wizard' opens.
4. Select the sensor type. The DDU10 works with Halleffect and DF11 sensors.
DDU 10
Analog and Frequency Inputs | 6
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