Sequential Shift Cut Parameters

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These parameters control the operation of an externally triggered shift cut, designed for use with sequential transmissions. Following an external trigger input, the engine output is cut for a certain time delay, allowing the transmission to engage the next gear with the minimum of stress on the transmission dogs. The engine output is cut using a fuel cut rev limiter.

 

seqshiftenable

Enables or disables the operation of the sequential shift engine cut.

 

seqshiftinput

Selects the input trigger for the sequential shift engine cut. The behaviour of the input may be reversed (inverted). Note that not all ECUs have the internal circuitry to support all the input options.

 

seqshiftconditions

Sets the conditions under which the sequential shift engine cut operates.

 

seqshiftoperation

Delay from trigger is the delay from the ECU receiving the shift cut trigger and the engine output cut, measured in milliseconds.

 

Duration of engine cut is the length of time the ECU cuts the engine output, measured in milliseconds.

 

Reactivation delay is the time delay before another signal from the input trigger will activate the shift cut, measured in milliseconds.

 

All time values have a resolution of 10 ms.

 

Strain Gauge Input

The KPro does not support a strain gauge input directly.  However, you can implement a shift cut using a strain gauge by converting the stain gauge voltage to a signal for the shift input.

To do this you can either use a purpose designed converter (eg the K-Tuned programmable interface) or by using a  'voltage comparator module'.

The voltage comparator module compares the strain gauge voltage with an adjustable threshold, and activates an output (often a relay) when the voltage reaches that threshold.  That output can be used as the shift input.