EGT & Multiplexing

If you have ideas for a new board, for new features for existing boards, or want to suggest new applications for the I/O Extender, this is the place to post.

EGT & Multiplexing

Postby Breastfed » Mon Aug 29, 2011 11:28 am

Hi Jean
I have v3 MS2extra and the 4ch sequential ign inj driver installed with single tach input, I was having thoughts about a 4ch EGT to Trim each injector, so anyway the idea is about using the AD595 and multiplexing this to a single adc port instead of multiple ports that could be free for other use's.

any thoughts ?

Breastfed
Breastfed
 
Posts: 25
Joined: Tue Mar 23, 2010 6:28 am

Re: EGT & Multiplexing

Postby jbelanger » Mon Aug 29, 2011 12:26 pm

To do multiplexing, you'd have to have the ECU control the multiplexer and that would take 2 outputs to select one of the 4 EGT channels. So you'd use 3 ECU pins instead of 4 which is not a big enough saving for the added code complexity. Moreover, you'd have to have those 2 outputs available which is not a given.

The solution is a CAN device which uses no additional I/O on the ECU.

Jean
Image
jbelanger
 
Posts: 3633
Joined: Sat Oct 03, 2009 12:24 pm
Location: Quebec, Canada

Re: EGT & Multiplexing

Postby Breastfed » Mon Aug 29, 2011 1:10 pm

Thanks Jean
I've been reading all the info on the IOX after I posted ...sure solves a lot of problems well done

Breastfed
Breastfed
 
Posts: 25
Joined: Tue Mar 23, 2010 6:28 am


Return to Wish List & Requests

Who is online

Users browsing this forum: No registered users and 1 guest

cron