Secondary Trigger - ECU Master EMU User Manual

Secondary trigger

Secondary trigger parameters are used to synchronize the crank position to the engine cycle
phase. This allows you to use full sequential ignition and injection. Camshaft position sensors are
also required for using VVTi/VANOS systems. The EMU device supports several different
secondary trigger wheels, and supports VR as well as HALL/Optical sensors.
PARAMETER
Sensor type
Enable pullup
Trigger type
Trigger edge
Disable camsync above
RPM
Nissan sync window
width
Sensitivity switch RPM
Next edge rejection
angle
User cam min tooth
User cam max tooth
Enable advanced filter
Trigger tooth
Tooth deviation
DESCRIPTION
Type of the sensor connected to Secondary trigger input. For Hall/Optical
sensors option Enable pullup is required
Enable 2K pullup to +5V on Secondary trigger input. This function is used
in the case of use Hall and Optical sensors that have open collector
output
Supported Secondary trigger decoders. More information about supported
decoders can be found in next section
Trigger edge of input signal used for decoding trigger pattern
This option disables cam shaft synchronization above a defined RPM.
This function can be used for noisy sensor signals
Option available for Nissan trigger decoder. More information can be
found in next section
This options allows to change input sensitivity from 250mV to 2.5V when
the engine s RPM are higher than defined. It is used for VE sensors and
can increase noise immunity
The angular distance in crank degrees from the last trigger edge, below
which distance any incoming trigger edge will be ignored as a noise. This
is used for noise reduction
In the case of User defined trigger decoder, the range of Primary trigger
tooth where the cam sync trigger edge appears should be defined. CAM
min tooth defines the beginning of this range
In the case of User defined trigger decoder, the range of Primary trigger
tooth where the cam sync trigger edge appears should be defined. CAM
min tooth defines the end of this range
Activation of advanced filter for secondary trigger input
This parameter defines the Primary trigger tooth where cam sync should
occur, otherwise cam sync is ignored
This parameter defines allowable deviation from the trigger tooth. In the
case of multitooth primary trigger this value must be 0
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