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Engine_Control_Unit_MS_3_Sport_GT3_Cup_Manual
Bosch Motorsport
(*)
360
°
360
°
(*)
720
°
TDC compression
for cylinder #1
TDC exhaust
for cylinder #1
TDC compression
for cylinder #1
60-2 tooth crank
trigger wheel
cam trigger wheel,
cylinder #1 position
Reference mark
gap
2nd falling edge
after the gap
Direction of
wheel travels
Position of the
speed sensors
(*)° before TDC compression for cyl. #1 , the tooth on the
cam trigger must overlap the reference mark of the crank
trigger (= 2nd falling edge).
(*)° before TDC exhaust for cyl. #1 , the tooth at the cam
trigger must NOT overlap the reference mark of the crank
trigger.
gap
gap
2nd falling edge
after the gap
(*)
(*): OT1ANGLE_SYS
Illustration 7: Position of the sensors
– All angles are shown and indicated in crankshaft degrees.
– The width of the cam trigger tooth is not important; however it must be wide enough
to ensure a safe overlap of the crank trigger reference mark at any time.
– The Hall-effect signal is the inversion of the shape of its cam trigger: the tooth effects
a 'low' signal at the sensor and vice versa.
– With 4 and 6 cylinder engines, the value of 66 degrees must be replaced by 78 de-
grees.
