Kenlowe control

arc · Sep 13, 2014

So I bought a new kenlowe fan for my converted disco tdi. Not having the thermostat and not wanting to invest a full £40 for the xfan switch I thought I'd try making my own.

Almost there....
Auto mode switches on fan at whatever temperature I program in.
Manual on / off override
Rotary switch changes top text line between
- radiator temp,
- engine temp,
- ambient temp,
- battery voltage

Built using picaxe - and its been quite good fun as a side project. Still wondering what else to put on.... Boost pressure maybe? Anything else?

AlbertDefender90 · Sep 14, 2014

arc said:
So I bought a new kenlowe fan for my converted disco tdi. Not having the thermostat and not wanting to invest a full £40 for the xfan switch I thought I'd try making my own.

Almost there....

Auto mode switches on fan at whatever temperature I program in.

Manual on / off override

Rotary switch changes top text line between

- radiator temp,

- engine temp,

- ambient temp,

- battery voltage

Built using picaxe - and its been quite good fun as a side project. Still wondering what else to put on.... Boost pressure maybe? Anything else?

Looking good mate, I'm sure you'll be able to add the boost pressure in there somewhere if you can find the correct sensor. I've been asked to look into building a display for a friend with a multiple option display showing engine oil pressure, water temp, gearbox and transfer box temp, boost pressure etc with a pair of voltage readout displays for twin batteries and a display sat on its end showing bars only for fuel level. I'm sure you'll find other uses for the picaxe aswell.

gse1986 · Sep 14, 2014

Looks very good!

I've got a kenlow at moment that's simply manual on/off. May well consider doing something different, like yours....

arc · Sep 14, 2014

Thanks for the comments, still struggling to get the code right for the voltmeter.... Edit... Now got it to stay within 0.3v of actual voltage throughout 7-16v range so happy with that. It's the 65535 integer only restriction on word variables that has me stumped. Could no doubt code it a better way but for now its good enough!

Got a test panel made up to test for component fit before doing one for the centre console... Happy so far.

AlbertDefender90 · Sep 14, 2014

arc said:
Thanks for the comments, still struggling to get the code right for the voltmeter.... Its fine around a calibrated value but the readings aren't linear as you crank up / down the power. If anyone is good on coding let me know!

Got a test panel made up to test for component fit before doing one for the centr console... Happy so far.

Looks great, I'm a little out of practice with the programming but if your struggling with the volt meter then I might be able to help with a few details of the components your using

Kenlowe control

arc

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arc

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