TheSamba.com :: View topic - Has anyone reverse engineered a Bosch electronic Regulator?

Mon Apr 27, 2015 2:36 pm

Just looking for the basic circuit of the electronic voltage regulator to replace the mechanical one!
Bosch # W0113-1798834 mfg # 9 190 040 099

Thanks

olnick

Mon Apr 27, 2015 2:55 pm

No but its great to see that Bosch recognizes people still need these voltage regulators, I'm not so sure about the new design, I've never used it, only the old points-type. If only someone started making bellows thermostats and the somewhat hard to find brackets, springs, flaps, and the 36hp parts too. Those are really hard to find.

Mon Apr 27, 2015 2:56 pm

awesomepowdercoat.com makes the bellows thermostats; and they carry all the rest that you need for the engine thermostat system.

Tim

Mon Apr 27, 2015 5:52 pm

The new voltage regulators are great ... better, more consistent voltage with them than the old points type regulators.

Mon Apr 27, 2015 5:55 pm

olnick wrote: Just looking for the basic circuit of the electronic voltage regulator to replace the mechanical one!
Bosch # W0113-1798834 mfg # 9 190 040 099

Thanks

olnick

The new voltage regulators are good. They're solid state.

Mon Apr 27, 2015 7:50 pm

I was skeptical of the solid state relays when they first appeared like 15 years ago, I worked at a parts/service shop when they came on the market. I decided that I'd be the guinea pig for these - or rather my Baja bug would be, which had been having charging issues for some time. I was more than happy with the SS relay, rock solid regulation and no more overvoltage issues. I never looked back.

Mon Apr 27, 2015 10:42 pm

Not exactly what the OP asked for, but plenty to chew on in this PDF: http://www.worldphaco.net/uploads/LUCAS_RB106_ELEC...ULATOR.pdf

Tue Apr 28, 2015 6:23 am

Thanks! This is what I was looking for

olnick

Wed Apr 29, 2015 10:31 am

I could NOT find a w0133-1798834 regulator! all the sites I checked out were out of stock 8 or 10 of them!!
I did locate the same regulator at "Rockauto" using part # iap 30019! all this for $25.75 + $4.00 S&H to be delivered on Friday (two day total) This is cheaper than a bunch of the mechanical regulators made in (China).

Wed Apr 29, 2015 11:29 am

Jeez, where did you check? CIP1 - probably the biggest general online VW parts seller has them in stock.

http://www2.cip1.com/ProductDetails.asp?ProductCode=BOS%2D0%2D190%2D350%2D068

Sat May 02, 2015 8:00 am

I received the Bosch electronic regulator in the mail yesterday. Initial setup gave me 14.02 volts. Put 100 miles on it and during the "test run" the voltage held the initial 14.02 volts under all conditions! The gas gauge is much more stable than in the past, the lights are a constant brilliance. A larger voltage drop is noted across the isolation diodes, that varies with the generator load from a high of 1 volt to a low of .3 volts and the average driving value of .7 volts. The regulation is fantastic holding the battery voltage at the 14.02 regulated volts. Wish I got one of these years ago!!!!!! The old bosch mechanical was fine up to a week ago.

Olnick

Sat May 02, 2015 8:25 am

Why not get an alternator and take the transient load off the regulator? why not provide stable current at the start of the charging circuit?..

Sat May 02, 2015 9:04 am

Great point Johnny,
You should fly to NH, buy him a quality alternator, new stand, belt, backing plates, fuel pump and rod, and take a few hours and do the swap for him. Then he won't need that new and improved regulator he got for $25 and installed in minutes.

Crazy how HE didn't think of that!

Sat May 02, 2015 1:24 pm

ROCKOROD71 wrote: Great point Johnny,
You should fly to NH, buy him a quality alternator, new stand, belt, backing plates, fuel pump and rod, and take a few hours and do the swap for him. Then he won't need that new and improved regulator he got for $25 and installed in minutes.

Crazy how HE didn't think of that!

When one desires consistent voltage the correct move is to shitcan the generator... his 25 dollar fix is admirable save one problem, it was designed to work with more consistent output that his generator..so basically the regulator will work its ass off and will fail.. don't quite know why you feel recommending me to fix his issue personally has anything to do with the discussion, but I do have a response to your suggestion.....go fuck yourself..

Sat May 02, 2015 2:20 pm

olnick wrote: I received the Bosch electronic regulator..... The regulation is fantastic holding the battery voltage at the 14.02 regulated volts. Wish I got one of these years ago!

Yes, as I said earlier in the thread, I never looked back once I switched to SS regulators. And I tend to ignore generator-haters like the last couple of posts. Now if solid state regulators had never come out, I was getting very annoyed with mechanical regulators and that might have prompted me to change to an alternator. But with the SSR, I'm quite happy with my two generator-equipped Bugs.

Sat May 02, 2015 3:55 pm

Given the choice! I will always go with the generator!! Try to push start a dead battery car with an alternator... Give up your GYM membership as you won't need it.
I have NEVER been stranded due to a generator failure.
Alternators twice up till now and counting.
Oh buy the way I have never added a 200 amp load to any of my vehicles electrical systems. Stock equipment has worked fine for me. Even the "old" tube type radios!

Olnick

Sat May 02, 2015 4:11 pm

Its your boat brother,what ever makes it float..generators need their fields excited to create voltage..that whole 'dead battery generator push start' is a wives tale..except for one thing,a voltage variance while charging will shorten a batteries life,so generator operators deal with that issue more than alternator folks.. but hey, good job on smoothing that variance some..

Sat May 02, 2015 4:43 pm

johnnypan wrote: Its your boat brother,what ever makes it float..generators need their fields excited to create voltage..that whole 'dead battery generator push start' is a wives tale..

The residual magnetism in a generator excites itself, unlike an alternator.

You can push start a VW with a dead battery and a generator. You can not push start a VW with a dead battery and an alternator. This is not a wives' tale; this is something that happens, offline, in the real world, where we live.

Robbie

Sat May 02, 2015 5:08 pm

johnnypan wrote: ..except for one thing,a voltage variance while charging will shorten a batteries life,so generator operators deal with that issue more than alternator folks..
That's odd, I find batteries last 10-15 years in my generator equipped cars, yet only 5-6 in alternatored ones :?

Sat May 02, 2015 5:32 pm

asiab3 wrote: johnnypan wrote: Its your boat brother,what ever makes it float..generators need their fields excited to create voltage..that whole 'dead battery generator push start' is a wives tale..

The residual magnetism in a generator excites itself, unlike an alternator.

You can push start a VW with a dead battery and a generator. You can not push start a VW with a dead battery and an alternator. This is not a wives' tale; this is something that happens, offline, in the real world, where we live.

Robbie

residual magnetism? :roll: you need a better tin foil hat..