Display Unit DDU 7
Lap Trigger | en
127
Bosch Motorsport
Manual
04.02.2019 | V 02 |
14
Lap Trigger
14.1
Lap trigger (timing beacon)
Why do we need a lap trigger (timing beacon)?
–
Vehicle lap time measurement
–
Calculation of lap-dependent functions (lap fuel consumption, min/max values)
–
Calculation of lap distance dependent functions
–
Control of data logging system
Types of Systems
–
GPS based (low cost, low precision)
–
IR based (low cost, high precision, limited reliability)
–
RF (microwave) based (high precision, high reliability)
IR and RF based Systems consists of
–
Transmitter (trackside unit)
–
Receiver (in-vehicle unit)
Lap Trigger
Receiver
Lap Trigger
Transmitter
14.1.1
Electrical trigger signal
In DDU 7 all sources of measurement channels can be used as trigger signal.
–
Analog input
–
Digital input
–
CAN input
Signal (measurement channel) properties
Low active signal (Bosch triggers): Trigger releases if signal is below the threshold.
High active signal (other manufacturer’s triggers): Trigger releases if signal is above the
threshold.
Two types of trigger signal:
–
Main trigger (end
‐
of
‐
lap at start/finish line)
Summary of Contents for DDU 7
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