Bosch VCU - Page 60

11 | Analog and Frequency Inputs
60/136 Vehicle_Control_Unit_VCU_Manual Bosch Motorsport
Measurement label Function
raw_name mV value of sensor
raw_name_fi filtered mV value of sensor
name physical value of sensor
name_fi filtered physical value
Online definition of the curve is covered in the chapter ‘Online calibration of measurement
channels [}75]’ of this manual.
NOTICE
Working with automatically created measurement sheets is ex-
plained in chapter ‘Setting up an online measurement [
}
70]’.
11.2.5 Digital filter details
Vehicle Control Unit VCU uses A/D converter oversampling and digital filtering to record-
ing rate.
Digital filters eliminate ‘out-of-band’ noise
Cut-off frequency automatically adjusted to recording rate
Example:
– 100 Hz recording rate (10 ms)
– <40 Hz pass band (>99 %)
– >50 Hz stop band (<1 %)