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17.1 Lap trigger (timing beacon)
17.1.1 Electrical trigger signal
Bosch Motorsport
17 Lap Trigger
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
Transmitter
In C 80 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.
Lap Trigger
Receiver
Manual_C_80
Lap Trigger | 17
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