Quote:
Originally Posted by cajunfj40
BTW, great circuit DieselJan. If I understand it right, this circuit does enable "regular" charging if the battery gets below a voltage you set with the correct diodes, as well as the "charge when brake circuit is active"? IE, it's "foolproof" barring a sudden overnight drop in temperature on a barely-above-set-charge-threshold battery.
Does it continue to charge when you sit at idle at a stoplight with your foot on the brake?
Thanks,
-cajunfj40
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Hi Cajunfj40
Thanks. Yes the circuit is fool proof if you set it up correctly. Not foolproof if you set it up to put it on overnight charging.
I always try to do modifications that don't need special attention, etc. I feel modifications should be able to go into production vehicles.
Yes it does continue to charge when idling while breaking. My thoughts was that if you drive around town, you will switch off vehicle more to do shopping, etc. So you will need to start it more and use more battery power. So it can just as well charge wile idling, use the engine turning for something useful.
Out on the highway and longer distances driving around town there will be less load on the engine and you save fuel there. My diesel has a hand adjustable idle screw, so if idle is slow enough the alternator doesn't charge.
I have also lowered my pressure in power steering pump, so it barely work for assisting with parking in town and highway cornering. The power steering still works but I have to put in a bit more arm steering. I will discuss it somewhere in a power steering delete thread. Anyway with that added I have another problem now that the engine is barely loaded in town and now raw diesel is coming from exhaust. Freeway driving is fine with exhaust burning nice and "clean."