Mechanical over-rev protection with PDK?

[tomnash]

I am very curious whether anyone knows if there is over-rev protection for downshifts with the PDK transmission in the new Porsches.

Specifically, what will the PDK do if you manually request a downshift that would result in a mechanical over-rev?

Does it ignore the request? and flash a dashboard warning? hold the request until the RPMs are low enough (I hope not)? or go ahead and execute the downshift and over-rev the engine?

If if ignores the request, this would be a huge selling point for PDK, and it does appear to me to be technically fairly straight forward so I am guessing Porsche would have done it.

[BoxsterG]

I am very curious whether anyone knows if there is over-rev protection for downshifts with the PDK transmission in the new Porsches.

Specifically, what will the PDK do if you manually request a downshift that would result in a mechanical over-rev?

Does it ignore the request? and flash a dashboard warning? hold the request until the RPMs are low enough (I hope not)? or go ahead and execute the downshift and over-rev the engine?

If if ignores the request, this would be a huge selling point for PDK, and it does appear to me to be technically fairly straight forward so I am guessing Porsche would have done it.

The Rev limiter kicks in and doesn't allow the over - revving. Porsche doesnt want to have to replace the engine because you downshifted accidentally. :huh:

[PTEC]

I haven't driven a PDK car yet but I would imagine it behaves just like a tiptronic does. If you press the down button when the revs are too high to downshift it just ignores it.

[RFM]

PDK cars and Tiptronic cars have the same safety downshift program against too high RPM, the difference you can feel, as driver, between both is a quicker and smoother shifting.