View Single Post
Old 03-13-2008, 02:19 PM   #9 (permalink)
British Ecomod Hypermiler
AXMonster's Avatar
Join Date: Mar 2008
Location: South Coast, England
Posts: 101

The AXe - SOLD - '97 Citroen Citroen AX 1.1i 5 Door
90 day: 46.78 mpg (US)

Foci - '03 Ford Ford Focus Tdci Ghia Estate
90 day: 64.37 mpg (US)
Thanks: 1
Thanked 11 Times in 10 Posts
Ok, I have it sorted. Two systems required. First is the duty cycle switch system which will switch an output if a duty cycle goes above a set value. This would be set to 1% and then the output reversed (so 1 is 0 and 0 is 1). Therefore when the duty cycle drops below 1% then the alternator is energised. The reversing of the output could be simply done with a small relay.

Secondly there would be a voltage controller switch that cuts the alternator back in at a set voltage (say 11.5v) and then switches it off again at another value (say 12.5v).

These circuits are available here

Item numbers KC5375 & KC5377
1997 Citroen AX 1.1i SPI
2003 Ford Focus 1.8 Tdci estate
Ecomods: See my garage

  Reply With Quote
The Following User Says Thank You to AXMonster For This Useful Post:
rvind2008 (05-23-2011)