Bosch VCU Manual page 101

16.1.3 Prevention of false triggers
16.1.4 Forced triggers
16.1.5 Setting up a lap trigger
Bosch Motorsport
The imaginary finishing line can only be calculated if all channel sources are defined cor-
rectly. The latitude and longitude channel sources are mandatory for the functionality.
Missing direction or speed source lowers the precision of the system.
Define the latitude and
longitude of the GPS
detection point.
Define the detection
range around the
detection point.
Define the channel
sources for Longitude,
Latitude, Direction and
Speed.
NOTICE
The configuration of the sensor update rate and the detection range
must insure to receive a valid GPS point in the detection range, des-
pite the occurring vehicle speed near the detection point.
– Race track topology and transmitter location frequently cause false triggers.
– Software functionality prevents acceptance of false triggers.
– Minimum vehicle speed for acceptance of trigger prevents false triggers while vehicle
is stationary in the pits.
– Time based re-trigger protection prevents false triggers due to signal reflections on
main straight.
– Lap distance based retrigger protection prevents false triggers due to track topology.
Lap distance based insertion of 'forced trigger'.
Under race conditions, trigger signals are sometimes missed. Software functionality intro-
duces 'forced trigger'.
1. Click 'Measurement Sources' in Toolbox.
2. Drag 'Laptrigger' into 'System Overview'. Do not drop it on 'Vehicle Control Unit
VCU'!
Vehicle_Control_Unit_VCU_Manual
Lap Trigger | 16
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