KMS MD35, Manual

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KMS MD35 manual
Version 4.16 19
Warning:
When ignition retard is applied, the temperature of the exhaust gasses may
rise so high that the exhaust valves, exhaust manifold and turbocharger will
be damaged. We recommend you to activate this function for no longer than
a few seconds!
3.2.4.1.2.3 Powershift
Powershift is a function that can be used for changing gear in sequential gearboxes.
A switch on the gearbox shifter enables the engine output to be briefly interrupted, so that a gear
change can be made with the throttle valve fully open. This minimises the duration of gear-change.
Powershift is only possible when the engine RPM is higher than 3000. The duration of the
interruption can be set to a maximum of 200 ms. Depending on the type of switch, NO
(recommended) or NC, the 'NC' box should be ticked. If the "use advance settings" control box is
selected, the "advanced settings" menu must be set. The maximum current on the powershift input
(pin 22) must not exceed 60mA. When for example the voltage is 12V, a resistor of ±1.0kΩ must be
used between the signal wire to limit the current.
Advanced settings:
In the „advanced settings‟ different parameters can be
set for the powershift gear changes. The columns
represent the transitions between the available gears.
Note that a gearposition sensor must be present on the
transmission housing for the use of these features. When
0 is entered in one of the cells it will not be taken into
effect.
Cut time ignition: Here you can set the desired ignition
cut time for each gear(change) position. The ignition will
be interrupted for the time set here.
Cut time injection: You can set the desired injection cut
time for each gear(change) position. The injection will be
interrupted for the time set here.
Delay time: At the moment the Power-shift switch is
activated, it is often desirable to have a short delay
before the switch takes effect. This is because some
resistance is required to build sufficient power for
sequential shifting (charasteristic of sequential gearbox).
Recovery time ignition: The time set in this row is the
time used to graduately increase the ignition advance to
the original value in the ignition table after shifting. This
will build up the engine power smoothely after
powershifting putting less stress on the gearbox and
driveline. (In the graph on the right, the recovery time is
set to 25 ms)
Recovery ignition advance: The recovery ignition advance
and recovery time are linked together. After shifting, the
recovery ignition advance is the value from where the
ignition advance is increased to the original value in the
ignition table. (In the graph on the right, the recovery
ignition advance is set to 10 deg)