Latching relay circuit - a bit technical

[chasbaps]

I've bought a new indicator stalk for Frodo. The old one had indicators, horn on the end, push forward for main beam (when the headlights were on), and temp pull back for main beam flash.

The new one has indicators, horn, but only temp pull back for high beam, no forward position for dipped/main. So I need to use a latching relay to control dipped/main, but also want to have the ability to flash the main beam, when the headlights are not turned on. This means, that the high and low beam of the headlights need to be on seperate circuits (otherwise you would have both high and low on at the same time if you made the connection).

I've had a little think, and reckon the circuit below will do what I want...

I'm using a 5A latching relay (DPDT) to power two automotive relays (SPST) so the low beam will be normally on, and the high beam normally off. If I latch the switch, this will reverse.

It's been years since I did any electronics like this, so can someone tell me if I am right, or barking up the wrong tree!

Thanks

 

[Panky]

Flippin heck:I

BERNIE

Summer's here.....
So they say

 

[JonnyCommer]

After initially reading it wrong and bamboozling myself, i think your there, Looks right to me. Cant decide if there's an easier solution to your problem tho, Nothing comes to mind yet. I think this will do the job and shouldn't cost much either (Ps nice drawing, Far neater than anything i've ever jotted down).

 

[commerchris]

does frodo not have a foot switch dip & main beam [:0]

Commer Dandy by Dandy Caravans
The Colonel Mustard

 

[Dodgemark]

quote:
Originally posted by commerchris

does frodo not have a foot switch dip & main beam [:0]

Commer Dandy by Dandy Caravans
The Colonel Mustard

dip/main beam are on the stalk on the later vans chris

 

[chasbaps]

Frodo is the height of modernity Chris!
Dip/sidelights on the dash (3 way switch) and main and flash on the indicator stalk, that has nine wires going into it!!!!

 

[chasbaps]

And cheers Jonny! Shows I didn't forget everything I was taught at uni!

 

[Panky]

Anyone got a pic because I might have one with all the right functions
This is the one, it's got 9 wires going to it and an eight bladed multi-connector.

Summer's here.....
So they say

 

[chasbaps]

Cheers Panky! I'll take a photo tomorrow!

 

[daytona]

That looks like a post 1968 hillman imp stalk but is probably fitted to more than one rootes vehicle.
In fact thinking about it i might have the correct stalk amongst my boxes of spares, will have a look when i get a moment. If i have got one you would be welcome to it Charlie as i have the early dash.

back to my "rootes"

 

[chasbaps]

Thanks! I am going to give the relays a go first - partly scientific interest, and partly because it should be safer, rather than all that power (!) going through the indicator stalk. I'll let you know how I get on...