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Pure ignition cut input

PostPosted: Fri Sep 30, 2011 2:26 am
by Mazi
I can't find the way how to cut off ignition for infinite time via switch on digital or AT input.

Re: Pure ignition cut input

PostPosted: Fri Sep 30, 2011 4:40 am
by stevieturbo
Mazi wrote:I can't find the way how to cut off ignition for infinite time via switch on digital or AT input.


If you need a basic cut like that, just put the switch in the power to the coils ?

Re: Pure ignition cut input

PostPosted: Fri Sep 30, 2011 6:30 am
by Arve Flaat
Hi

Use mode 3: Cut while signal is active.

Regards

Arve

Re: Pure ignition cut input

PostPosted: Fri Sep 30, 2011 2:28 pm
by MarkMc
What do you actually want to do?

Re: Pure ignition cut input

PostPosted: Fri Sep 30, 2011 11:23 pm
by Mazi
MarkMc wrote:What do you actually want to do?


At least two things.

First one is gearshift cut controlled by another source.
http://www.geartronics.co.uk/closedloop.htm

Second one is ignition cut caused by belt failure on external oil pump dry sump engine. I have a small electronic device capable to measure speed of oil pump and send it over CAN bus. An ignition cut table with RPM on X and Oil Pump RPM on Y will be fine. If it is not possible then fixed ratio between oil pump and engine RPM with percent of allowed difference with some filtering will be also fine. I know that this can be solved with "mode 8" ignition input, but I would like to prime the fuel pump before engine is cranking.

And I don't want to mess with relays.

Regards

Re: Pure ignition cut input

PostPosted: Sat Oct 01, 2011 11:42 am
by Holmz
Mazi wrote:
MarkMc wrote:What do you actually want to do?


At least two things.

...
Second one is ignition cut caused by belt failure on external oil pump dry sump engine. I have a small electronic device capable to measure speed of oil pump and send it over CAN bus. An ignition cut table with RPM on X and Oil Pump RPM on Y will be fine.

...


Mazi
I would like the link to that please.

Re: Pure ignition cut input

PostPosted: Wed Oct 05, 2011 6:15 pm
by NeilW
First one is gearshift cut controlled by another source.
http://www.geartronics.co.uk/closedloop.htm



You definitely need to use "mode 3" cut while active. However, you don't want a total ignition cut for gear shift - just a torque reduction, typically 85-90%

Neil Wallace (Geartronics)