Re: [DML] Fan Relay Upgrade

[Martin Gutkowski <webmaster@xxxx>]

Hi Shain

My intention is to produce an "open source" design that any hobbyist could build. To this end my design keeps things simple. 9/10ths of the problem with a project like this is sourcing the appropriate parts! I am compiling a build procedure using parts readily available from Farnell. The fan fail module is an interesting idea and fairly unique to the DeLorean. I want to duplicate it as near as possible. I have got the function down to the point that every time your fans kick in you _know_ the system's working.

If you're talking lock module - I've got a design I haven't built yet but uses a pair of NAND gates and a couple of buffering trannys - and it solves ALL the problems with the stock modules (I trust the Siemens relays I'm replacing the OEM ones with!). You could use a pic, but how many people out there could copy it?

Having read a number of electronic "solutions" I have found myself having to reverse engineer the instructions to work out what has been done. I want to explain my systems to allow people to copy them with confidence, and with something as important as the fan control, this is paramount.

It's really nice to know there's someone out there who thinks as I do!

Cheers

Martin
#1458

shain@xxxx wrote:

> Martin,
>
> Microcontrolelr was a bit excessive for the fan relays, but couold be a very good alternative for the door lock module. After looking at the pictures in the vault of a stock relay harness i came up with the idea of having two relays and have one on a delay. After i came up with the initial design i alsmot laughed on how simple it really was, 3 small transistors, 2 resistors and a cap. I actually fitted the circuitry in project box the size of a keyless entry remote (not recomended, was a pain to build). I have not tackled my fan fail light yet, and really does seem that inportant to me (like the door lock light). Well it's a hot day out, lets seem if mine functions properly ;)
>
> Happy Easter!
> - Shain
> #10140